Night Vision Wiki - User contributions [en]

PNV-57

2024-11-07T17:04:35Z

EP-33 enthusiast: added more to PNW-2

The PNV-57 is a family of night vision binoculars originally developed and produced in the Soviet Union, but later variants also developed and produced in Czechoslovakia and Poland.

The design has several variants, either using Gen. 0 or Gen. 1 [[Image Intensifier|image intensifier tubes]]. They use an external power supply, with a high voltage cable connecting the supply to the binoculars. Most variants then require an external power source to be connected to this power supply. Originally these units are mounted to a tanker cap style helmet with the power supply worn on the back of the cap. With the exception of the later PNV-57E, the device lacks IPD adjustment.

The device is often supplied with additional CBK-1 high voltage rectifiers. The device also comes with a small bottle of sealing grease, that is to be reapplied when the device is taken apart (i.e to replace the rectifiers).<ref name=":0">https://www.youtube.com/watch?v=aW-5H-4Tqhs&t=276s</ref><ref name=":1">https://www.rwd-mb3.de/pages/pnw57.htm</ref>

== Variants ==
{| class="wikitable"
|+
!Device
!Generation
!Information
!Image
|-
|PNV-57
|0
|Goggles look like two smooth cylinders with a flat underside.
Painted grey, green, brown and black.

Utilizes V1P/V1PM generation-0 tubes, these are slightly smaller than V-8 and EP-33 tubes.

Early variants of the device had the high voltage cable coming straight out of the transformer, this however caused them to be frequently damaged when put in the box. Thus later models had the cables coming out at an angle.<ref name=":0" />

This variant of the device comes with AF-2 IR filters and A-55 IR emitters. The IR filters are made from a type of glass that has a high manganese content.

The device also comes with spare bulbs for the A-55 light.<ref name=":1" />
|[[File:Device serial.jpg|thumb|Czechoslovakian PNV-57 made in 1968]]
|-
|PNW-57
|0
|Polish copy of the PNV-57. The main difference between the PNW-57 and Czechoslovakian PNV-57 is that it has ear outserts where headphones can be inserted. The device comes in either a green wooden box or grey metal box, similar to its Czechoslovakian counterpart, but with slightly different dimensions and a slightly lighter tone of grey. The device also uses a different type of illuminator with the same plug as the device itself.
The device uses W1P/W1PM tubes of indigenous production.
|
|-
|PNV-57A
|0
|Same as the PNV-57, but uses a different transformer.
|
|-
|PNV57AM
|???
|???
|
|-
|PNV-57AK
|0
|Same as the PNV-57A, but in a box containing two units
|
|-
|PNW-2
|Unknown, but presumably 0
|Unit of Polish origin similar to PNV-57, except that it is a monocular with an adjustable mount. Included in the transport box are two separate monoculars. Very uncommon.<ref>https://www.reddit.com/r/NightVision/comments/x94cfa/strange_russian_goggle/</ref> Sometimes the kit has a tank helmet with a specialized mount on it. The mount in question appears to have an adjustable IPD. Rarely, there's also a bridge of two pods possibly called PNV-4.<ref>https://www.reddit.com/r/Rusfor/comments/1dtzb0i/how_do_i_do_this</ref>
|
|-
|PNV-57H
|0
|Czech handheld clone of the PNV-57A
Uses a much larger power supply

Large IR lamp fitted to top of unit

Presumably uses the same V1PM tubes as the default Czechoslovak PNV-57 made by [[Tesla]]. <ref>https://forum.astronomie.de/threads/infrarot-nachtsichtgeraet-nachtsichtbrille-pnv-57-binokular.344107/</ref>
|
|-
|PNV-57K
|0
|???
|
|-
|PNV-57T
|0
|Identical to the PNV-57AK, but in a wooden crate marked accordingly
|
|-
|PNV-57E
|1/0+
|Visually and functionally distinct to PNV-57A models.
Looks like two irregularly shaped cylinders with a large protrusion on the upper side, nearer to the eyepieces.

The unit is painted a green - brown colour, similar to some versions of the PNV-57A

Sometimes seen converted to handheld use, with a power supply mounted on top of the binoculars

Uses generation-1/0+ V-8 tubes. <ref name=":2">https://www.youtube.com/watch?v=0LfyEFIjfgo&t=3s</ref>

Doesn't have the CBK-1 high voltage rectifiers included, as the power supply is different internally.

The device also comes with UFS-8 and KF-19 light blockers and their respective mounts.

It lacks the grease, as field disassembly was rendered pointless by removal of the rectifiers. <ref name=":1" />
|
|-
|PNV-57EH
|1/0+
|Recon variant presumably made in Czechoslovakia.<ref>https://www.detektorweb.info/clanek/nocni-videni-1</ref>
|
|-
|PNV-57EM
|1/0+
|Modernised version of the PNV-57E.
Unlike other versions, the power supply for this variant has a battery compartment, eliminating the need for a separate battery pack.

The binoculars are slightly shorter than the PNV-57E, the front lenses replaced with a shorter version with adjustable focus

Uses upgraded V-8A tubes made by [[Ekran Optical Systems|Ekran]]. <ref name=":2" />
|
|-
|PNV-57ET
|1/0+
|Same as the PNV-57E, but in a box containing two units
|
|-
|PNV-57ETC
|???
|???
|
|-
|PNW-57M
|[[16mm]] generation-2/3 tubes
|Uses the same body as the PNW-57, but different lenses. <ref>http://www.opticstrade.cz/night-vision-devices/pnv-57-m-en/</ref>
The device is of Polish origin, this is certain because of the PNW designation.

The device appears to have removed the bulky transformer (Batteries mounted in the former cable spot?)

The device was also in service with Polish artillery units. <ref>http://pzo.warszawa.pl/oferta/optoelektronika-dla-artylerii/152-mm-ahs-dana/</ref>

The device was created to be compatible with existing surplus PNV-57 accessories. <ref>https://www.reddit.com/r/UssrNvgResearchGroup/comments/1az60vn/what_are_theese_are_theese_gen1_or_gen0/</ref>
|
|-
|BNO
|1/0+
|Magnified binocular version of the PNV-57E
Different front lens design

Power supply, battery compartment and IR illuminator mounted in a long tube mounted on top of the device
|
|-
|BN2
|1/0+
|Similar to the BNO, but with different front lenses and no IR illuminator
|
|}

== References ==
<references />
[[Category:Devices]]

KOMZ

2024-09-03T18:11:04Z

EP-33 enthusiast: added more KOMZ lore.

KOMZ, short for Kazan Optical and Mechanical Plant (now known as Baigish) was/is(?) a manufacturer of night vision housings and other optical devices, such as binoculars.<ref>[https://www.fernglasmuseum.at/museum/komz_bpo_7mal30/komz_bpo_7x30.html https://www.fernglasmuseum.at/museum/komz_bpo_7mal30/komz_bpo_7x30.htm]</ref> Binoculars of KOMZ production are common in the European civilian market, presenting a mid range option in the market, their most common optics are the BPC4 and BPC5, although World War 2 era optics are also common. They produced devices such as the [[1PN50]], [[1PN33]] and [[Baigish 20A|Baigish-20]]. Due to the Russian invasion of Ukraine they are (currently) a sanctioned entity.<ref>[https://www.opensanctions.org/entities/NK-b7siW7A4B7U3Xd92k6feAs/ https://www.opensanctions.org/entities/NK-b7siW7A4B7U3Xd92k6feA]</ref>

== References ==
<references />
[[Category:Housing Manufacturer]]
[[Category:Manufacturers]]

1PN50

2024-09-03T18:05:50Z

EP-33 enthusiast: minor grammar improvements, will do an overhaul of all the articles I have contributed to some time in the future.

The 1PN50 "Relic" is a night vision device of Soviet origin. The device also carries the designation BN-2. The device is commonly sold on the civilian market as Baigish-6 or Baigish-6u.<ref>https://nokto.info/noktowizor-lornetka-1pn50-wojskowa-43.html</ref> It uses generation-2 image intensifiers, namely the EP-10, EPM-28G and EPM-61G.<ref>https://nokto.info/image-intensifier-tubes-for-night-vision-devices/image-intensifier-tubes-gen-2/</ref> Originally, the device utilized a 7.5 volt accumulator, although the device can utilize voltages anywhere between 7.5 to 4.5 volts.<ref>[https://forum.guns.ru/forummessage/256/1976210.html https://forum.guns.ru/forummessage/256/1976210.htm]</ref>The device was also supplied with PRP-4 artillery reconnaissance vehicles. <ref>https://www.rwd-mb3.de/technik_g/pages/prp4.htm</ref> A striking characteristic of the device is the biocular nature of it. It uses a large 2.4x lens. The ocular side uses a panoramic lens to present the image to both eyes. The device was manufactured by [[KOMZ]].

== References ==
[[Category:Devices]]

NSG-66

2024-09-03T17:59:32Z

EP-33 enthusiast: working on improving this page, recently acquired a NSG-66 maintenance manual, will update.

The NSG-66 is a device of east German origin.

It is powered by a high voltage transformer box. The device can be mounted on certain east German helmets that have a specialized mounting bracket.<ref>https://www.youtube.com/watch?v=OS_r3_Yc5zA</ref> The device utilizes BW18D (BW presumably standing for ''Bildwandler'', German for image intensifier) image intensifiers of east German production. The device has a field of view of 30° and a magnification of 1x. The focus is set to infinity (much like the PNV-57).<ref>https://www.rwd-mb3.de/stechnik/pages/nsg66.htm</ref> The device was meant to be used by vehicle drivers, and thus is quite uncommon.<ref>https://www.nva-stahlhelme.de/sonderfutter-nsg-66.html</ref> The device is (supposedly) manufactured by Karl Zeiss Jena.<ref>https://www.all4shooters.com/de/shooting/optik/nachtsichtgeraete-alles-zur-technik-und-funktionsweise/</ref> Further things used in collimating the device is a specialized tool to check collimation.

== References ==
<references />
[[Category:Devices]]

PNV-57

2024-06-07T10:47:07Z

EP-33 enthusiast: Added PNV-57EH and fixed a link

The PNV-57 is a family of night vision binoculars originally developed and produced in the Soviet Union, but later variants also developed and produced in Czechoslovakia and Poland.

The design has several variants, either using Gen. 0 or Gen. 1 [[Image Intensifier|image intensifier tubes]]. They use an external power supply, with a high voltage cable connecting the supply to the binoculars. Most variants then require an external power source to be connected to this power supply. Originally these units are mounted to a tanker cap style helmet with the power supply worn on the back of the cap. With the exception of the later PNV-57E, the device lacks IPD adjustment.

The device is often supplied with additional CBK-1 high voltage rectifiers. The device also comes with a small bottle of sealing grease, that is to be reapplied when the device is taken apart (i.e to replace the rectifiers).<ref name=":0">https://www.youtube.com/watch?v=aW-5H-4Tqhs&t=276s</ref><ref name=":1">https://www.rwd-mb3.de/pages/pnw57.htm</ref>

== Variants ==
{| class="wikitable"
|+
!Device
!Generation
!Information
!Image
|-
|PNV-57
|0
|Goggles look like two smooth cylinders with a flat underside.
Painted grey, green, brown and black.

Utilizes V1P/V1PM generation-0 tubes, these are slightly smaller than V-8 and EP-33 tubes.

Early variants of the device had the high voltage cable coming straight out of the transformer, this however caused them to be frequently damaged when put in the box. Thus later models had the cables coming out at an angle.<ref name=":0" />

This variant of the device comes with AF-2 IR filters and A-55 IR emitters. The IR filters are made from a type of glass that has a high manganese content.

The device also comes with spare bulbs for the A-55 light.<ref name=":1" />
|[[File:Device serial.jpg|thumb|Czechoslovakian PNV-57 made in 1968]]
|-
|PNW-57
|0
|Polish copy of the PNV-57. The main difference between the PNW-57 and Czechoslovakian PNV-57 is that it has ear outserts where headphones can be inserted. The device comes in either a green wooden box or grey metal box, similar to its Czechoslovakian counterpart, but with slightly different dimensions and a slightly lighter tone of grey. The device also uses a different type of illuminator with the same plug as the device itself.
The device uses W1P/W1PM tubes of indigenous production.
|
|-
|PNV-57A
|0
|Same as the PNV-57, but uses a different transformer.
|
|-
|PNV57AM
|???
|???
|
|-
|PNV-57AK
|0
|Same as the PNV-57A, but in a box containing two units
|
|-
|PNW-2
|Unknown, but presumably 0
|Unit of Polish origin similar to PNV-57, except that it is a monocular with an adjustable mount. Included in the transport box are two separate monoculars. Very uncommon.<ref>https://www.reddit.com/r/NightVision/comments/x94cfa/strange_russian_goggle/</ref>
|
|-
|PNV-57H
|0
|Czech handheld clone of the PNV-57A
Uses a much larger power supply

Large IR lamp fitted to top of unit

Presumably uses the same V1PM tubes as the default Czechoslovak PNV-57 made by [[Tesla]]. <ref>https://forum.astronomie.de/threads/infrarot-nachtsichtgeraet-nachtsichtbrille-pnv-57-binokular.344107/</ref>
|
|-
|PNV-57K
|0
|???
|
|-
|PNV-57T
|0
|Identical to the PNV-57AK, but in a wooden crate marked accordingly
|
|-
|PNV-57E
|1/0+
|Visually and functionally distinct to PNV-57A models.
Looks like two irregularly shaped cylinders with a large protrusion on the upper side, nearer to the eyepieces.

The unit is painted a green - brown colour, similar to some versions of the PNV-57A

Sometimes seen converted to handheld use, with a power supply mounted on top of the binoculars

Uses generation-1/0+ V-8 tubes. <ref name=":2">https://www.youtube.com/watch?v=0LfyEFIjfgo&t=3s</ref>

Doesn't have the CBK-1 high voltage rectifiers included, as the power supply is different internally.

The device also comes with UFS-8 and KF-19 light blockers and their respective mounts.

It lacks the grease, as field disassembly was rendered pointless by removal of the rectifiers. <ref name=":1" />
|
|-
|PNV-57EH
|1/0+
|Recon variant presumably made in Czechoslovakia.<ref>https://www.detektorweb.info/clanek/nocni-videni-1</ref>
|
|-
|PNV-57EM
|1/0+
|Modernised version of the PNV-57E.
Unlike other versions, the power supply for this variant has a battery compartment, eliminating the need for a separate battery pack.

The binoculars are slightly shorter than the PNV-57E, the front lenses replaced with a shorter version with adjustable focus

Uses upgraded V-8A tubes made by [[Ekran Optical Systems|Ekran]]. <ref name=":2" />
|
|-
|PNV-57ET
|1/0+
|Same as the PNV-57E, but in a box containing two units
|
|-
|PNV-57ETC
|???
|???
|
|-
|PNW-57M
|[[16mm]] generation-2/3 tubes
|Uses the same body as the PNW-57, but different lenses. <ref>http://www.opticstrade.cz/night-vision-devices/pnv-57-m-en/</ref>
The device is of Polish origin, this is certain because of the PNW designation.

The device appears to have removed the bulky transformer (Batteries mounted in the former cable spot?)

The device was also in service with Polish artillery units. <ref>http://pzo.warszawa.pl/oferta/optoelektronika-dla-artylerii/152-mm-ahs-dana/</ref>

The device was created to be compatible with existing surplus PNV-57 accessories. <ref>https://www.reddit.com/r/UssrNvgResearchGroup/comments/1az60vn/what_are_theese_are_theese_gen1_or_gen0/</ref>
|
|-
|BNO
|1/0+
|Magnified binocular version of the PNV-57E
Different front lens design

Power supply, battery compartment and IR illuminator mounted in a long tube mounted on top of the device
|
|-
|BN2
|1/0+
|Similar to the BNO, but with different front lenses and no IR illuminator
|
|}

== References ==
<references />
[[Category:Devices]]

Ekran Optical Systems

2024-05-13T15:27:32Z

EP-33 enthusiast: added generation 0 and 0+

{{Stub}}

Ekran Optical Systems is a Russian image intensifier tube manufacturer.

== History ==
JSC Ekran Optical Systems was founded in 1954, as the first soviet enterprise producing components for night vision.

It's initial line of products consisted of Gen. 0 [[Image Intensifier|image intensifier]] tubes and photomultiplier tubes.

Today, Ekran produces Gen. 2, Gen. 0 and Gen. 0+ image intensifiers.<ref>https://www.ekran-os.ru/about</ref>

== References ==
[[Category:Image Intensifier Manufacturers]]
[[Category:Manufacturers]]

EP33

2024-05-10T15:26:06Z

EP-33 enthusiast: added references

The EP33 is a generation 0+ image intensifier tube of Russian origin.<ref>https://www.ekran-os.ru/products?id=35#s</ref> All variants of the EP33 are produced by [[Ekran Optical Systems|Ekran]]. There are multiple variants of the EP33, these are: EP33, EP33-U, EP33-UD, EP33-US-D and EP33-SF. The SF is special, as it has a spherical photocathode to counteract distortion.<ref>https://www.ekran-os.ru/images/spec/eop0/spherical/en/pEP33-SF.pdf</ref> These tubes were and still are widely used in civilian devices marketed as "generation-1". The U in some EP33 variant indicated that the anode cone is shortened for the sake of compactness.<ref>[https://forum.guns.ru/forummessage/209/2602105.html https://forum.guns.ru/forummessage/209/2602105.htm]</ref>

== References ==

1PN33

2024-05-10T15:14:10Z

EP-33 enthusiast: corrected tube info

The 1PN33 "glare" is a night vision device of soviet origin, it's some also referred to as BN-1. It can sometimes be found on the civilian market as "baigish-12". It has a magnification of 3.2x and a field of view of 9°. The device is powered by an accumulator that supplies 8.8 to 3.3 volts. Unlike the later 1PN50, the device is a true binocular. <ref>https://www.rwd-mb3.de/pages/1pn33.htm</ref> The device was supplied with PRP-4 artillery reconnaissance vehicles.<ref>https://www.rwd-mb3.de/technik_g/pages/prp4.htm</ref> The device uses 4EP14MG generation-0+ image intensifiers.<ref>[https://forum.guns.ru/forummessage/256/2085318.html https://forum.guns.ru/forummessage/256/2085318.htm]</ref> The housing and optics of the device were produced by [[KOMZ]]. It was supplied to numerous Warsaw pact armies, and is therefore very common on the surplus market.

== References ==
[[Category:Devices]]

1PN33

2024-05-10T15:09:56Z

EP-33 enthusiast: added references

The 1PN33 is a night vision device of soviet origin, it's some also referred to as BN-1. It can sometimes be found on the civilian market as "baigish-12". It has a magnification of 3.2x and a field of view of 9°. The device is powered by an accumulator that supplies 8.8 to 3.3 volts. Unlike the later 1PN50, the device is a true binocular. <ref>https://www.rwd-mb3.de/pages/1pn33.htm</ref> The device was supplied with PRP-4 artillery reconnaissance vehicles.<ref>https://www.rwd-mb3.de/technik_g/pages/prp4.htm</ref> The device uses V-8 generation-1/0+ image intensifiers. The housing and optics of the device were produced by [[KOMZ]]. It was supplied to numerous Warsaw pact armies, and is therefore very common on the surplus market.

== References ==
[[Category:Devices]]

1PN33

2024-05-10T15:09:04Z

EP-33 enthusiast: added KOMZ link

The 1PN33 is a night vision device of soviet origin, it's some also referred to as BN-1. It can sometimes be found on the civilian market as "baigish-12". It has a magnification of 3.2x and a field of view of 9°. The device is powered by an accumulator that supplies 8.8 to 3.3 volts. Unlike the later 1PN50, the device is a true binocular. [https://www.rwd-mb3.de/pages/1pn33.htm] The device was supplied with PRP-4 artillery reconnaissance vehicles.[https://www.rwd-mb3.de/technik_g/pages/prp4.htm] The device uses V-8 generation-1/0+ image intensifiers. The housing and optics of the device were produced by [[KOMZ]]. It was supplied to numerous Warsaw pact armies, and is therefore very common on the surplus market.
[[Category:Devices]]

1PN50

2024-05-10T15:08:38Z

EP-33 enthusiast: linked KOMZ

The 1PN50 "relic" is a night vision device of soviet origin. The device also carries the designation BN-2. The device is commonly sold on the civilian market as baigish-6 or baigish-6u.<ref>https://nokto.info/noktowizor-lornetka-1pn50-wojskowa-43.html</ref> It uses generation-2 image intensifiers, namely the EP-10, EPM-28G and EPM-61G.<ref>https://nokto.info/image-intensifier-tubes-for-night-vision-devices/image-intensifier-tubes-gen-2/</ref> Originally, the device utilized a 7.5 volt accumulator, although the device can utilize voltages anywhere between 7.5 to 4.5 volts.<ref>[https://forum.guns.ru/forummessage/256/1976210.html https://forum.guns.ru/forummessage/256/1976210.htm]</ref>The device was also supplied with PRP-4 artillery reconnaissance vehicles. <ref>https://www.rwd-mb3.de/technik_g/pages/prp4.htm</ref> A striking characteristic of the device is the biocular nature of it. it uses a large 2.4x lens. the ocular side uses a panoramic lens to present the image to both eyes. The device was manufactured by [[KOMZ]].

== References ==
[[Category:Devices]]

1PN50

2024-05-10T15:08:16Z

EP-33 enthusiast: added refences

1PN50

2024-05-10T15:08:01Z

EP-33 enthusiast:

Talk:Main Page

2024-05-10T11:05:09Z

EP-33 enthusiast: wiped

KOMZ

2024-05-10T11:04:08Z

EP-33 enthusiast:

KOMZ, short for Kazan Optical and Mechanical Plant (now known as Baigish) was/is(?) a manufacturer of night vision housings and other optical devices, such as binoculars.<ref>[https://www.fernglasmuseum.at/museum/komz_bpo_7mal30/komz_bpo_7x30.html https://www.fernglasmuseum.at/museum/komz_bpo_7mal30/komz_bpo_7x30.htm]</ref> They produced devices such as the [[1PN50]], [[1PN33]] and [[Baigish 20A|Baigish-20]]. Due to the Russian invasion of Ukraine they are (currently) a sanctioned entity.<ref>[https://www.opensanctions.org/entities/NK-b7siW7A4B7U3Xd92k6feAs/ https://www.opensanctions.org/entities/NK-b7siW7A4B7U3Xd92k6feA]</ref>

== References ==
<references />
[[Category:Housing Manufacturer]]
[[Category:Manufacturers]]

KOMZ

2024-05-10T11:02:18Z

EP-33 enthusiast: created page for KOMZ

NSP-2

2024-05-10T10:51:22Z

EP-33 enthusiast: added battery life source and info

The NSP-2 is a gun mounted night vision optic of Soviet origin. The device uses a Gen. 0 P-4 tube with a different format than V-7 or V-1P/V-1PM.<ref>https://russianlegacy.com/night-vision-scope-vintage-poster</ref> While the device is of Soviet origin, numerous Warsaw Pact states produced the device under license. These countries include: the GDR, Poland and Czechoslovakia. <ref>https://www.theakforum.net/threads/east-german-nsp-2-ir-night-vision-scope.328641/</ref>

The device when in its box has a weight of 16 Kilos. The device has a magnification of 2.2x and a field of view of 8°. The scope itself has a large IR light mounted on top with a 4.5v 20w bulb inside. Additionally there's a cable that leads to a transformer that was meant to be worn on the users hip. Inside the transformer is the battery compartment, which fits the 3SC-25 4.5 volt accumulator that is supplied with the device.<ref>https://www.rwd-mb3.de/pages/nsp3.htm</ref> The device can be used for 3.5 hours before having to have the battery changed.<ref>[https://topwar.ru/179511-vospreschaetsja-vkljuchat-dnem-bez-diafragmy-i-navodit-na-jarkij-svet-ob-osobennostjah-nochnogo-pricela-nsp-2-obrazca-1950-h.html https://topwar.ru/179511-vospreschaetsja-vkljuchat-dnem-bez-diafragmy-i-navodit-na-jarkij-svet-ob-osobennostjah-nochnogo-pricela-nsp-2-obrazca-1950]</ref>

== References ==
<references />
[[Category:Devices]]

NSP-3

2024-05-10T10:44:05Z

EP-33 enthusiast: Added References headiung at the bottom

The NSP-3 is a night vision device of Soviet origin. Unlike the earlier NSP-2, the NSP-3 is a passive device using a cascade tube. Inside the device (presumably) is a U-32M three-stage cascade tube. The device weighs around 2.7kg. It has a magnification of 2.7x and a field of view of 7°. The device runs on a 4.5 volt accumulator. The whole kit including the bag, crate and accessories weighs around 7.8kg. The device was license produced in Poland and Hungary. The Polish version of the device carries the same NSP-3 designation of the soviet variant, while Hungarian devices are called NSzP-3 (these use U-32M tubes).<ref>https://www.reddit.com/r/UssrNvgResearchGroup/comments/1c3smyt/soviet_u32m_cascaded_gen1_image_converter_tube/</ref>There are two variants of the device, the NSP-3 and NSP-3A. The NSP-3 carries the 1PN27 GRAU index catalogue number, while the NSP-3As number is 1PN28.<ref>https://www.rwd-mb3.de/pages/nsp3.htm</ref>

== References ==
[[Category:Devices]]

NSP-3

2024-05-10T10:42:23Z

EP-33 enthusiast: changed references

EP33

2024-05-09T14:29:39Z

EP-33 enthusiast: Added page for EP33

The EP33 is a generation 0+ image intensifier tube of Russian origin.[https://www.ekran-os.ru/products?id=35#s] There are multiple variants of the EP33, these are: EP33, EP33-U, EP33-UD, EP33-US-D and EP33-SF. The SF is special, as it has a spherical photocathode to counteract distortion.[https://www.ekran-os.ru/images/spec/eop0/spherical/en/pEP33-SF.pdf] These tubes were and still are widely used in civilian devices marketed as "generation-1".

File:PNV-57 gif.gif

2024-05-09T10:22:58Z

EP-33 enthusiast: Uploaded own work with UploadWizard

=={{int:filedesc}}==
{{Information
|description={{en|1=A short view through a Czechoslovakian PNV-57}}
|date=2024-04-17
|source={{own}}
|author=[[User:EP-33 enthusiast|EP-33 enthusiast]]
|permission=
|other versions=
}}

=={{int:license-header}}==
{{self|cc-by-sa-4.0}}

PFM

2024-05-08T18:36:05Z

EP-33 enthusiast: Added page for PFM (WIP)

The PFM is a night vision device of Soviet origin. It was meant for mine clearance.
[[Category:Devices]]

Talk:Main Page

2024-05-08T18:33:38Z

EP-33 enthusiast:

== .ru sources blocked ==

Is there a particular reason as to why .ru sources are flagged as spam? I understand that the .ru net is full of rather shady sites, but there is also some genuinely great sources on many pages.

Admin/Markus: That sounds like a false positive. Can you by any chance contact me? E-Mail? Discord?

EP-33: Sure, where can I contact you per E-Mail?

Markus: markusappel at hotmail dot de

EP-33: sent you an E-mail

NSG-66

2024-05-08T16:04:31Z

EP-33 enthusiast: changed inaccurate PNV-57 focus distance info

The NSG-66 is a device of east German origin.

It is powered by a high voltage transformer box. The device can be mounted on certain east German helmets that have a specialized mounting bracket.<ref>https://www.youtube.com/watch?v=OS_r3_Yc5zA</ref> The device utilizes BW18D (BW presumably standing for ''Bildwandler'', German for image intensifier) image intensifiers of east German production. The device has a field of view of 30° and a magnification of 1x. The focus is set to infinity (much like the PNV-57).<ref>https://www.rwd-mb3.de/stechnik/pages/nsg66.htm</ref> The device was meant to be used by vehicle drivers, and thus is quite uncommon.<ref>https://www.nva-stahlhelme.de/sonderfutter-nsg-66.html</ref> The device is (supposedly) manufactured by Karl Zeiss Jena.<ref>https://www.all4shooters.com/de/shooting/optik/nachtsichtgeraete-alles-zur-technik-und-funktionsweise/</ref>

== References ==
<references />
[[Category:Devices]]

Talk:Main Page

2024-05-08T11:23:55Z

EP-33 enthusiast:

Talk:Main Page

2024-05-07T14:37:44Z

EP-33 enthusiast: /* .ru sources blocked */ new section

PPN-2

2024-04-29T10:04:09Z

EP-33 enthusiast: fixed IR floodlight info

The PPN-2 is a night vision sight of soviet origin. The device is similar to the NSP-2 in function and form, but instead of being mounted on small arms such as assault rifles, it was designed for machine guns (PPN presumably standing for пулемет прицел ночной, or machine gun night sight). The device runs off of 9 volt as opposed to the NSP-2s 4.5 volt. Another noticeable difference is the IR floodlight (that looks identical to the NSP-2s IR light), mounted on the battery box, as opposed to the sight itself. It has a magnification of 3.5x and a field of view of 8°. The PPN-2 kit includes a carrier for the 6SC-25 accumulators used in the device. The PPN-2 was in use with many Warsaw pact armies such as the NVA, CSLA and LWP. The device is very similar to NSP-2. This is a trend that would continue with the NSP-3 and PPN-3 up to the 1PN34 (NSPU).[https://www.rwd-mb3.de/pages/ppn2.htm]
[[Category:Devices]]

PNV-57

2024-04-27T13:48:20Z

EP-33 enthusiast: Added source for PNV-57H

The PNV-57 is a family of night vision binoculars originally developed and produced in the Soviet Union, but later variants also developed and produced in Czechoslovakia and Poland.

The design has several variants, either using Gen. 0 or Gen. 1 [[Image Intensifier|image intensifier tubes]]. They use an external power supply, with a high voltage cable connecting the supply to the binoculars. Most variants then require an external power source to be connected to this power supply. Originally these units are mounted to a tanker cap style helmet with the power supply worn on the back of the cap. With the exception of the later PNV-57E, the device lacks IPD adjustment.

The device is often supplied with additional CBK-1 high voltage rectifiers. The device also comes with a small bottle of sealing grease, that is to be reapplied when the device is taken apart (i.e to replace the rectifiers).<ref name=":0">https://www.youtube.com/watch?v=aW-5H-4Tqhs&t=276s</ref><ref name=":1">https://www.rwd-mb3.de/pages/pnw57.htm</ref>

== Variants ==
{| class="wikitable"
|+
!Device
!Generation
!Information
!Image
|-
|PNV-57
|0
|Goggles look like two smooth cylinders with a flat underside.
Painted grey, green, brown and black.

Utilizes V1P/V1PM generation-0 tubes, these are slightly smaller than V-8 and EP-33 tubes.

Early variants of the device had the high voltage cable coming straight out of the transformer, this however caused them to be frequently damaged when put in the box. Thus later models had the cables coming out at an angle.<ref name=":0" />

This variant of the device comes with AF-2 IR filters and A-55 IR emitters. The IR filters are made from a type of glass that has a high manganese content.

The device also comes with spare bulbs for the A-55 light.<ref name=":1" />
|[[File:Device serial.jpg|thumb|Czechoslovakian PNV-57 made in 1968]]
|-
|PNW-57
|0
|Polish copy of the PNV-57. The main difference between the PNW-57 and Czechoslovakian PNV-57 is that it has ear outserts where headphones can be inserted. The device comes in either a green wooden box or grey metal box, similar to its Czechoslovakian counterpart, but with slightly different dimensions and a slightly lighter tone of grey. The device also uses a different type of illuminator with the same plug as the device itself.
The device uses W1P/W1PM tubes of indigenous production.
|
|-
|PNV-57A
|0
|Same as the PNV-57, but uses a different transformer.
|
|-
|PNV57AM
|???
|???
|
|-
|PNV-57AK
|0
|Same as the PNV-57A, but in a box containing two units
|
|-
|PNW-2
|Unknown, but presumably 0
|Unit of Polish origin similar to PNV-57, except that it is a monocular with an adjustable mount. Included in the transport box are two separate monoculars. Very uncommon.<ref>https://www.reddit.com/r/NightVision/comments/x94cfa/strange_russian_goggle/</ref>
|
|-
|PNV-57H
|0
|Czech handheld clone of the PNV-57A
Uses a much larger power supply

Large IR lamp fitted to top of unit

Presumably uses the same V1PM tubes as the default Czechoslovak PNV-57 made by [[Tesla]]. [https://forum.astronomie.de/threads/infrarot-nachtsichtgeraet-nachtsichtbrille-pnv-57-binokular.344107/]
|
|-
|PNV-57K
|0
|???
|
|-
|PNV-57T
|0
|Identical to the PNV-57AK, but in a wooden crate marked accordingly
|
|-
|PNV-57E
|1/0+
|Visually and functionally distinct to PNV-57A models.
Looks like two irregularly shaped cylinders with a large protrusion on the upper side, nearer to the eyepieces.

The unit is painted a green - brown colour, similar to some versions of the PNV-57A

Sometimes seen converted to handheld use, with a power supply mounted on top of the binoculars

Uses generation-1/0+ V-8 tubes. <ref name=":2">https://www.youtube.com/watch?v=0LfyEFIjfgo&t=3s</ref>

Doesn't have the CBK-1 high voltage rectifiers included, as the power supply is different internally.

The device also comes with UFS-8 and KF-19 light blockers and their respective mounts.

It lacks the grease, as field disassembly was rendered pointless by removal of the rectifiers. <ref name=":1" />
|
|-
|PNV-57EM
|1/0+
|Modernised version of the PNV-57E.
Unlike other versions, the power supply for this variant has a battery compartment, eliminating the need for a separate battery pack.

The binoculars are slightly shorter than the PNV-57E, the front lenses replaced with a shorter version with adjustable focus

Uses upgraded V-8A tubes made by [[Ekran Optical Systems|Ekran]]. <ref name=":2" />
|
|-
|PNV-57ET
|1/0+
|Same as the PNV-57E, but in a box containing two units
|
|-
|PNV-57ETC
|???
|???
|
|-
|PNW-57M
|[[16mm]] generation-2/3 tubes
|Uses the same body as the PNW-57, but different lenses. <ref>http://www.opticstrade.cz/night-vision-devices/pnv-57-m-en/</ref>
The device is of Polish origin, this is certain because of the PNW designation.

The device appears to have removed the bulky transformer (Batteries mounted in the former cable spot?)

The device was also in service with Polish artillery units. <ref>http://pzo.warszawa.pl/oferta/optoelektronika-dla-artylerii/152-mm-ahs-dana/</ref>

The device was created to be compatible with existing surplus PNV-57 accessories. <ref>https://www.reddit.com/r/UssrNvgResearchGroup/comments/1az60vn/what_are_theese_are_theese_gen1_or_gen0/</ref>
|
|-
|BNO
|1/0+
|Magnified binocular version of the PNV-57E
Different front lens design

Power supply, battery compartment and IR illuminator mounted in a long tube mounted on top of the device
|
|-
|BN2
|1/0+
|Similar to the BNO, but with different front lenses and no IR illuminator
|
|}

== References ==
<references />
[[Category:Devices]]

PNV-57

2024-04-19T18:46:10Z

EP-33 enthusiast: linked tube format article

The PNV-57 is a family of night vision binoculars originally developed and produced in the Soviet Union, but later variants also developed and produced in Czechoslovakia and Poland.

The design has several variants, either using Gen. 0 or Gen. 1 [[Image Intensifier|image intensifier tubes]]. They use an external power supply, with a high voltage cable connecting the supply to the binoculars. Most variants then require an external power source to be connected to this power supply. Originally these units are mounted to a tanker cap style helmet with the power supply worn on the back of the cap. With the exception of the later PNV-57E, the device lacks IPD adjustment.

The device is often supplied with additional CBK-1 high voltage rectifiers. The device also comes with a small bottle of sealing grease, that is to be reapplied when the device is taken apart (i.e to replace the rectifiers).<ref name=":0">https://www.youtube.com/watch?v=aW-5H-4Tqhs&t=276s</ref><ref name=":1">https://www.rwd-mb3.de/pages/pnw57.htm</ref>

== Variants ==
{| class="wikitable"
|+
!Device
!Generation
!Information
!Image
|-
|PNV-57
|0
|Goggles look like two smooth cylinders with a flat underside.
Painted grey, green, brown and black.

Utilizes V1P/V1PM generation-0 tubes, these are slightly smaller than V-8 and EP-33 tubes.

Early variants of the device had the high voltage cable coming straight out of the transformer, this however caused them to be frequently damaged when put in the box. Thus later models had the cables coming out at an angle.<ref name=":0" />

This variant of the device comes with AF-2 IR filters and A-55 IR emitters. The IR filters are made from a type of glass that has a high manganese content.

The device also comes with spare bulbs for the A-55 light.<ref name=":1" />
|[[File:Device serial.jpg|thumb|Czechoslovakian PNV-57 made in 1968]]
|-
|PNW-57
|0
|Polish copy of the PNV-57. The main difference between the PNW-57 and Czechoslovakian PNV-57 is that it has ear outserts where headphones can be inserted. The device comes in either a green wooden box or grey metal box, similar to its Czechoslovakian counterpart, but with slightly different dimensions and a slightly lighter tone of grey. The device also uses a different type of illuminator with the same plug as the device itself.
The device uses W1P/W1PM tubes of indigenous production.
|
|-
|PNV-57A
|0
|Same as the PNV-57, but uses a different transformer.
|
|-
|PNV57AM
|???
|???
|
|-
|PNV-57AK
|0
|Same as the PNV-57A, but in a box containing two units
|
|-
|PNW-2
|Unknown, but presumably 0
|Unit of Polish origin similar to PNV-57, except that it is a monocular with an adjustable mount. Included in the transport box are two separate monoculars. Very uncommon.<ref>https://www.reddit.com/r/NightVision/comments/x94cfa/strange_russian_goggle/</ref>
|
|-
|PNV-57H
|0
|Czech handheld clone of the PNV-57A
Uses a much larger power supply

Large IR lamp fitted to top of unit

Presumably uses the same V1PM tubes as the default Czechoslovak PNV-57 made by [[Tesla]].
|
|-
|PNV-57K
|0
|???
|
|-
|PNV-57T
|0
|Identical to the PNV-57AK, but in a wooden crate marked accordingly
|
|-
|PNV-57E
|1/0+
|Visually and functionally distinct to PNV-57A models.
Looks like two irregularly shaped cylinders with a large protrusion on the upper side, nearer to the eyepieces.

The unit is painted a green - brown colour, similar to some versions of the PNV-57A

Sometimes seen converted to handheld use, with a power supply mounted on top of the binoculars

Uses generation-1/0+ V-8 tubes. <ref name=":2">https://www.youtube.com/watch?v=0LfyEFIjfgo&t=3s</ref>

Doesn't have the CBK-1 high voltage rectifiers included, as the power supply is different internally.

The device also comes with UFS-8 and KF-19 light blockers and their respective mounts.

It lacks the grease, as field disassembly was rendered pointless by removal of the rectifiers. <ref name=":1" />
|
|-
|PNV-57EM
|1/0+
|Modernised version of the PNV-57E.
Unlike other versions, the power supply for this variant has a battery compartment, eliminating the need for a separate battery pack.

The binoculars are slightly shorter than the PNV-57E, the front lenses replaced with a shorter version with adjustable focus

Uses upgraded V-8A tubes made by [[Ekran Optical Systems|Ekran]]. <ref name=":2" />
|
|-
|PNV-57ET
|1/0+
|Same as the PNV-57E, but in a box containing two units
|
|-
|PNV-57ETC
|???
|???
|
|-
|PNW-57M
|[[16mm]] generation-2/3 tubes
|Uses the same body as the PNW-57, but different lenses. <ref>http://www.opticstrade.cz/night-vision-devices/pnv-57-m-en/</ref>
The device is of Polish origin, this is certain because of the PNW designation.

The device appears to have removed the bulky transformer (Batteries mounted in the former cable spot?)

The device was also in service with Polish artillery units. <ref>http://pzo.warszawa.pl/oferta/optoelektronika-dla-artylerii/152-mm-ahs-dana/</ref>

The device was created to be compatible with existing surplus PNV-57 accessories. <ref>https://www.reddit.com/r/UssrNvgResearchGroup/comments/1az60vn/what_are_theese_are_theese_gen1_or_gen0/</ref>
|
|-
|BNO
|1/0+
|Magnified binocular version of the PNV-57E
Different front lens design

Power supply, battery compartment and IR illuminator mounted in a long tube mounted on top of the device
|
|-
|BN2
|1/0+
|Similar to the BNO, but with different front lenses and no IR illuminator
|
|}

== References ==
<references />
[[Category:Devices]]

NSP-3

2024-04-19T18:42:23Z

EP-33 enthusiast: spelling

The NSP-3 is a night vision device of Soviet origin. Unlike the earlier NSP-2, the NSP-3 is a passive device using a cascade tube. Inside the device (presumably) is a U-32M three-stage cascade tube. The device weighs around 2.7kg. It has a magnification of 2.7x and a field of view of 7°. The device runs on a 4.5 volt accumulator. The whole kit including the bag, crate and accessories weighs around 7.8kg. The device was license produced in Poland and Hungary. The Polish version of the device carries the same NSP-3 designation of the soviet variant, while Hungarian devices are called NSzP-3 (these use U-32M tubes).[https://www.reddit.com/r/UssrNvgResearchGroup/comments/1c3smyt/soviet_u32m_cascaded_gen1_image_converter_tube/] There are two variants of the device, the NSP-3 and NSP-3A. The NSP-3 carries the 1PN27 GRAU index catalogue number, while the NSP-3As number is 1PN28.[https://www.rwd-mb3.de/pages/nsp3.htm]
[[Category:Devices]]

NSP-3

2024-04-19T18:42:02Z

EP-33 enthusiast: Added NSP-3/NSzP-3 page.

The NSP-3 is a night vision device of soviet origin. Unlike the earlier NSP-2, the NSP-3 is a passive device using a cascade tube. Inside the device (presumably) is a U-32M three-stage cascade tube. The device weighs around 2.7kg. It has a magnification of 2.7x and a field of view of 7°. The device runs on a 4.5 volt accumulator. The whole kit including the bag, crate and accessories weighs around 7.8kg. The device was license produced in Poland and Hungary. The Polish version of the device carries the same NSP-3 designation of the soviet variant, while Hungarian devices are called NSzP-3 (these use U-32M tubes).[https://www.reddit.com/r/UssrNvgResearchGroup/comments/1c3smyt/soviet_u32m_cascaded_gen1_image_converter_tube/] There are two variants of the device, the NSP-3 and NSP-3A. The NSP-3 carries the 1PN27 GRAU index catalogue number, while the NSP-3As number is 1PN28.[https://www.rwd-mb3.de/pages/nsp3.htm]
[[Category:Devices]]

PPN-2

2024-04-19T18:23:31Z

EP-33 enthusiast: added user info

The PPN-2 is a night vision sight of soviet origin. The device is similar to the NSP-2 in function and form, but instead of being mounted on small arms such as assault rifles, it was designed for machine guns (PPN presumably standing for пулемет прицел ночной, or machine gun night sight). The device runs off of 9 volt as opposed to the NSP-2s 4.5 volt. Another noticeable difference is the detached IR floodlight (that looks identical to the NSP-2s IR light). It has a magnification of 3.5x and a field of view of 8°. The PPN-2 kit includes a carrier for the 6SC-25 accumulators used in the device. The PPN-2 was in use with many Warsaw pact armies such as the NVA, CSLA and LWP. The device is very similar to NSP-2. This is a trend that would continue with the NSP-3 and PPN-3 up to the 1PN34 (NSPU).[https://www.rwd-mb3.de/pages/ppn2.htm]
[[Category:Devices]]

PPN-2

2024-04-19T18:06:02Z

EP-33 enthusiast: Added PPN-2 page. While it is very likely that it uses the same P-4 tube as the NSP-2, I didn't include it in the article due to not having a diagram of the device (unlike the NSP-2).

The PPN-2 is a night vision sight of soviet origin. The device is similar to the NSP-2 in function and form, but instead of being mounted on small arms such as assault rifles, it was designed for machine guns (PPN presumably standing for пулемет прицел ночной, or machine gun night sight). The device runs off of 9 volt as opposed to the NSP-2s 4.5 volt. Another noticeable difference is the detached IR floodlight (that looks identical to the NSP-2s IR light). It has a magnification of 3.5x and a field of view of 8°. The PPN-2 kit includes a carrier for the 6SC-25 accumulators used in the device. The device is very similar to NSP-2. This is a trend that would continue with the NSP-3 and PPN-3 up to the 1PN34 (NSPU).[https://www.rwd-mb3.de/pages/ppn2.htm]
[[Category:Devices]]

AN/PVS-2

2024-04-19T17:46:25Z

EP-33 enthusiast: added info on thorium lens and a source. (wip)

{{Stub}}

The AN/PVS-2 is the [[Joint Electronics Type Designation System (JETDS)|JETDS]] designation for an early night vision scope developed for the US armed forces. The devices lenses use thorium.[https://www.nrc.gov/docs/ML0635/ML063530621.pdf]

== Further Reading ==
{{FurtherReading|Title=AN/PVS-2 Starlight Scope: Night Vision Comes of Age|Description=A deep dive by YouTube channel "Our Own Devices"|Link=https://www.youtube.com/watch?v=9rqzt9ENUvU}}
[[Category:Devices]]

User:EP-33 enthusiast

2024-04-19T17:42:46Z

EP-33 enthusiast: added diagram

Comblocware enthusiast, native German speaker and electronics enjoyer. Owner of [[PNV-57]] (Czechoslovakian). Pictures below.
<gallery mode="packed" heights="180" widths="300">
File:Device serial.jpg|serial number and date
File:Accessories PNV.jpg|accessories that came with my device
File:PNV log and inventory list.jpg|Inventory list and log
File:CBK 1.jpg|CBK-1 Kenotron of Soviet origin.
File:PNV crate.jpg|The crate the device came in
File:Night vision device diagram.png|diagram I created, not perfect by a long shot.
</gallery>

File:PNV log and inventory list.jpg

2024-04-19T17:41:20Z

EP-33 enthusiast: fixed grammar

=={{int:filedesc}}==
{{Information
|description={{en|1=Log and inventory list of the device, although it was produced in the 1960s its first use was in the 80s}}
|date=2024-03-26
|source={{own}}
|author=[[User:EP-33 enthusiast|EP-33 enthusiast]]
|permission=
|other versions=
}}

=={{int:license-header}}==
{{self|cc-by-sa-4.0}}

Housing

2024-04-19T17:37:24Z

EP-33 enthusiast: Added diagram.

This wiki currently differentiates the following [[Property:Housing Type|housing types]]: {{#show: Property:Housing Type |?Allows value}}.
[[File:Night vision device diagram.png|thumb|333x333px|A diagram depicting the image seen with bioculars, monucolars and binoculars]]

== Monocular ==
A monocular housing consists of one objective lens, one image intensifier, and one eyepiece. It is worn in front of one eye.

=== Advantages ===

* Least expensive
* Lowest weight
* One eye free<ref group="Note">Using the unaided eye without having to take off the device is advantageous in some situations:

*Environments with dynamic lighting, where the brighter areas can be observed without restriction

*Focusing on nearby objects, given enough light, requires no focus adjustment (maps, text, electronic devices, signs, ...)

*Aiming a weapon is less cumbersome</ref>

=== Disadvantages ===

* No depth perception
* Potential discomfort from mismatch between eyes

=== Housings ===
The following monocular housings have been documented on this wiki:

{{#ask:
[[Housing Type::Monocular]]
|format=ul
}}

== Bi-ocular ==
A bi-ocular housing consist of one objective lens, one image intensifier, a beam splitter, and two eyepieces. It is worn in front of both eyes, however providing no depth perception to the user.

=== Advantages ===

* Less expensive than binocular devices (only one image intensifier)
* Less discomfort than monocular devices

=== Disadvantages ===

* No depth perception
* Dimmer image than other types
** Light from phosphor screen is split onto the two eyepieces
** Inherent loss of light from use of mirrors

=== Housings ===
The following bi-ocular housings have been documented on this wiki:

{{#ask:
[[Housing Type::Bi-ocular]]
|format=ul
}}

== Binocular ==
A binocular housing consists of a bridge (sometimes with articulation) connected to two pods. Each pod consists of one objective lens, one image intensifier, and one eyepiece. It is worn in front of both eyes and provides the most natural viewing experience with full depth perception to the user.

=== Advantages ===

* Full depth perception
* Less perceived image noise due to separate image intensifiers for each eye
* Possibility to focus each eye onto different distances at the same time

=== Disadvantages ===

* More expensive than monocular or bi-ocular devices (more optical components, two image intensifiers)
* Heavier than monocular and some bi-ocular devices
* Imperfections in lenses and image intensifiers more noticeable

=== Housings ===
The following binocular housings have been documented on this wiki:

{{#ask:
[[Housing Type::Binocular]]
|format=ul
}}

== Panoramic ==
A panoramic housing features two fused pods per eye, with one pod pointing forward, and an additional pod pointing sideways at an angle. As such, each side of the housing produces a field of view of two partially overlapping circles. For the user, this means that one half of this shape on one eye will overlap with the other half on the opposite eye, forming one shared field of view with full depth perception, with an additional peripheral field of vision on the left side for the left eye, and on the right side for the right eye.

=== Advantages ===

* All advantages of binocular housings
* Additional peripheral field of view

=== Disadvantages ===

* All disadvantages of binocular housings
* Most expensive (most optical components, four image intensifiers, fused eyepieces)
* Heavier than all other types of housings

=== Housings ===
The following panoramic housings have been documented on this wiki:

{{#ask:
[[Housing Type::Panoramic]]
|format=ul
}}

== Notes ==
<references group="Note" />

== Further Reading ==
{{FurtherReading|Description=Study of the Army Research Laboratory|Title=A Comparison of Monocular, Biocular, and Binocular Night Vision Goggles for Traversing Off-road Terrain on Foot|Link=https://apps.dtic.mil/sti/pdfs/ADA294018.pdf}}
[[Category:Technology]]

File:Night vision device diagram.png

2024-04-19T17:31:53Z

EP-33 enthusiast: Uploaded own work with UploadWizard

=={{int:filedesc}}==
{{Information
|description={{en|1=A diagram of how bioculars compare to monoculars and binoculars}}
|date=2024-04-19
|source={{own}}
|author=[[User:EP-33 enthusiast|EP-33 enthusiast]]
|permission=
|other versions=
}}

=={{int:license-header}}==
{{self|cc-by-sa-4.0}}

PNV-57

2024-04-19T17:09:46Z

EP-33 enthusiast: Added picture of PNV-57, added V1P/W1P to tubes used and added the official gen. 0+ designation to the tubes of the PNV-57E and its derivatives (see Ekran's website for the gen. 0+ designation)

The PNV-57 is a family of night vision binoculars originally developed and produced in the Soviet Union, but later variants also developed and produced in Czechoslovakia and Poland.

The design has several variants, either using Gen. 0 or Gen. 1 [[Image Intensifier|image intensifier tubes]]. They use an external power supply, with a high voltage cable connecting the supply to the binoculars. Most variants then require an external power source to be connected to this power supply. Originally these units are mounted to a tanker cap style helmet with the power supply worn on the back of the cap. With the exception of the later PNV-57E, the device lacks IPD adjustment.

The device is often supplied with additional CBK-1 high voltage rectifiers. The device also comes with a small bottle of sealing grease, that is to be reapplied when the device is taken apart (i.e to replace the rectifiers).<ref name=":0">https://www.youtube.com/watch?v=aW-5H-4Tqhs&t=276s</ref><ref name=":1">https://www.rwd-mb3.de/pages/pnw57.htm</ref>

== Variants ==
{| class="wikitable"
|+
!Device
!Generation
!Information
!Image
|-
|PNV-57
|0
|Goggles look like two smooth cylinders with a flat underside.
Painted grey, green, brown and black.

Utilizes V1P/V1PM generation-0 tubes, these are slightly smaller than V-8 and EP-33 tubes.

Early variants of the device had the high voltage cable coming straight out of the transformer, this however caused them to be frequently damaged when put in the box. Thus later models had the cables coming out at an angle.<ref name=":0" />

This variant of the device comes with AF-2 IR filters and A-55 IR emitters. The IR filters are made from a type of glass that has a high manganese content.

The device also comes with spare bulbs for the A-55 light.<ref name=":1" />
|[[File:Device serial.jpg|thumb|Czechoslovakian PNV-57 made in 1968]]
|-
|PNW-57
|0
|Polish copy of the PNV-57. The main difference between the PNW-57 and Czechoslovakian PNV-57 is that it has ear outserts where headphones can be inserted. The device comes in either a green wooden box or grey metal box, similar to its Czechoslovakian counterpart, but with slightly different dimensions and a slightly lighter tone of grey. The device also uses a different type of illuminator with the same plug as the device itself.
The device uses W1P/W1PM tubes of indigenous production.
|
|-
|PNV-57A
|0
|Same as the PNV-57, but uses a different transformer.
|
|-
|PNV57AM
|???
|???
|
|-
|PNV-57AK
|0
|Same as the PNV-57A, but in a box containing two units
|
|-
|PNW-2
|Unknown, but presumably 0
|Unit of Polish origin similar to PNV-57, except that it is a monocular with an adjustable mount. Included in the transport box are two separate monoculars. Very uncommon.<ref>https://www.reddit.com/r/NightVision/comments/x94cfa/strange_russian_goggle/</ref>
|
|-
|PNV-57H
|0
|Czech handheld clone of the PNV-57A
Uses a much larger power supply

Large IR lamp fitted to top of unit

Presumably uses the same V1PM tubes as the default Czechoslovak PNV-57 made by [[Tesla]].
|
|-
|PNV-57K
|0
|???
|
|-
|PNV-57T
|0
|Identical to the PNV-57AK, but in a wooden crate marked accordingly
|
|-
|PNV-57E
|1/0+
|Visually and functionally distinct to PNV-57A models.
Looks like two irregularly shaped cylinders with a large protrusion on the upper side, nearer to the eyepieces.

The unit is painted a green - brown colour, similar to some versions of the PNV-57A

Sometimes seen converted to handheld use, with a power supply mounted on top of the binoculars

Uses generation-1/0+ V-8 tubes. <ref name=":2">https://www.youtube.com/watch?v=0LfyEFIjfgo&t=3s</ref>

Doesn't have the CBK-1 high voltage rectifiers included, as the power supply is different internally.

The device also comes with UFS-8 and KF-19 light blockers and their respective mounts.

It lacks the grease, as field disassembly was rendered pointless by removal of the rectifiers. <ref name=":1" />
|
|-
|PNV-57EM
|1/0+
|Modernised version of the PNV-57E.
Unlike other versions, the power supply for this variant has a battery compartment, eliminating the need for a separate battery pack.

The binoculars are slightly shorter than the PNV-57E, the front lenses replaced with a shorter version with adjustable focus

Uses upgraded V-8A tubes made by [[Ekran Optical Systems|Ekran]]. <ref name=":2" />
|
|-
|PNV-57ET
|1/0+
|Same as the PNV-57E, but in a box containing two units
|
|-
|PNV-57ETC
|???
|???
|
|-
|PNW-57M
|16mm generation-2/3 tubes
|Uses the same body as the PNW-57, but different lenses. <ref>http://www.opticstrade.cz/night-vision-devices/pnv-57-m-en/</ref>
The device is of Polish origin, this is certain because of the PNW designation.

The device appears to have removed the bulky transformer (Batteries mounted in the former cable spot?)

The device was also in service with Polish artillery units. <ref>http://pzo.warszawa.pl/oferta/optoelektronika-dla-artylerii/152-mm-ahs-dana/</ref>

The device was created to be compatible with existing surplus PNV-57 accessories. <ref>https://www.reddit.com/r/UssrNvgResearchGroup/comments/1az60vn/what_are_theese_are_theese_gen1_or_gen0/</ref>
|
|-
|BNO
|1/0+
|Magnified binocular version of the PNV-57E
Different front lens design

Power supply, battery compartment and IR illuminator mounted in a long tube mounted on top of the device
|
|-
|BN2
|1/0+
|Similar to the BNO, but with different front lenses and no IR illuminator
|
|}

== References ==
<references />
[[Category:Devices]]

NSP-2

2024-04-19T12:50:32Z

EP-33 enthusiast: The P-4 is the designation of the tube, not the phosphor type, I should have clarified this in the notes

The NSP-2 is a gun mounted night vision optic of Soviet origin. The device uses a Gen. 0 P-4 tube with a different format than V-7 or V-1P/V-1PM.<ref>https://russianlegacy.com/night-vision-scope-vintage-poster</ref> While the device is of Soviet origin, numerous Warsaw Pact states produced the device under license. These countries include: the GDR, Poland and Czechoslovakia. <ref>https://www.theakforum.net/threads/east-german-nsp-2-ir-night-vision-scope.328641/</ref>

The device when in its box has a weight of 16 Kilos. The device has a magnification of 2.2x and a field of view of 8°. The scope itself has a large IR light mounted on top with a 4.5v 20w bulb inside. Additionally there's a cable that leads to a transformer that was meant to be worn on the users hip. Inside the transformer is the battery compartment, which fits the 3SC-25 4.5 volt accumulator that is supplied with the device.<ref>https://www.rwd-mb3.de/pages/nsp3.htm</ref>

== References ==
<references />
[[Category:Devices]]

NSP-2

2024-04-18T17:03:42Z

EP-33 enthusiast: added tube info (P-4)

The NSP-2 is a gun mounted night vision optic of Soviet origin. The device uses a Gen. 0 P-4 tube with a different format than V-7 or V-1P/V-1PM.<ref>https://russianlegacy.com/night-vision-scope-vintage-poster</ref> While the device is of Soviet origin, numerous Warsaw Pact states produced the device under license. These countries include: the GDR, Poland and Czechoslovakia. <ref>https://www.theakforum.net/threads/east-german-nsp-2-ir-night-vision-scope.328641/</ref>

The device when in its box has a weight of 16 Kilos. The device has a magnification of 2.2x and a field of view of 8°. The scope itself has a large IR light mounted on top with a 4.5v 20w bulb inside. Additionally there's a cable that leads to a transformer that was meant to be worn on the users hip. Inside the transformer is the battery compartment, which fits the 3SC-25 4.5 volt accumulator that is supplied with the device.<ref>https://www.rwd-mb3.de/pages/nsp3.htm</ref>

== References ==
<references />
[[Category:Devices]]

NSP-2

2024-04-18T16:33:31Z

EP-33 enthusiast: Added NSP-2 page

The NSP-2 is a gun mounted night vision optic of Soviet origin. The device uses a generation-0 tube with a different format than V-7 or V-1P/V-1PM.[https://russianlegacy.com/night-vision-scope-vintage-poster] While the device is of Soviet origin, numerous Warsaw Pact states produced the device under license. These countries include: the GDR, Poland and Czechoslovakia. [https://www.theakforum.net/threads/east-german-nsp-2-ir-night-vision-scope.328641/] The device when in its box has a weight of 16 Kilos. The device has a magnification of 2.2x and a field of view of 8°. The scope itself has a large IR light mounted on top with a 4.5v 20w bulb inside. Additionally there's a cable that leads to a transformer that was meant to be worn on the users hip. inside the transformer is the battery compartment, which fits the 3SC-25 4.5 volt accumulator that is supplied with the device.[https://www.rwd-mb3.de/pages/nsp3.htm]
[[Category:Devices]]

PNV-57

2024-04-16T16:39:43Z

EP-33 enthusiast: Added more PNW-57M info

The PNV-57 is a family of night vision binoculars produced in the soviet union. The design has several variants, either using generation 0 or generation 1 image intensifier tubes. They use an external power supply, with a high voltage cable connecting the supply to the binoculars. Most variants then require an external power source to be connected to this power supply. Originally these units are mounted to a tanker cap style helmet with the power supply worn on the back of the cap. Unlike the later PNV-57E, the device lacks IPD adjustment. The device is often supplied with additional CBK-1 high voltage rectifiers. The device also comes with a small bottle of sealing grease, that is to be reapplied when the device is taken apart (i.e to replace the rectifiers).<ref name=":0">https://www.youtube.com/watch?v=aW-5H-4Tqhs&t=276s</ref><ref name=":1">https://www.rwd-mb3.de/pages/pnw57.htm</ref>

== Variants ==
{| class="wikitable"
|+
!Device
!Generation
!Information
!Image
|-
|PNV-57
|0
|Goggles look like two smooth cylinders with a flat underside.
Painted grey, green, brown and black.

Utilizes V1PM generation-0 tubes, these are slightly smaller than V-8 and EP-33 tubes.

Early variants of the device had the high voltage cable coming straight out of the transformer, this however caused them to be frequently damaged when put in the box. Thus later models had the cables coming out at an angle.<ref name=":0" />

This variant of the device comes with AF-2 IR filters and A-55 IR emitters. The IR filters are made from a type of glass that has a high manganese content.

The device also comes with spare bulbs for the A-55 light.<ref name=":1" />
|
|-
|PNW-57
|0
|Polish copy of the PNV-57. The main difference between the PNW-57 and Czechoslovakian PNV-57 is that it has ear outserts where headphones can be inserted. The device comes in either a green wooden box or grey metal box, similar to its Czechoslovakian counterpart, but with slightly different dimensions and a slightly lighter tone of grey. The device also uses a different type of illuminator with the same plug as the device itself.
The device uses W1PM tubes of indigenous production.
|
|-
|PNV-57A
|0
|Same as the PNV-57, but uses a different transformer.
|
|-
|PNV57AM
|???
|???
|
|-
|PNV-57AK
|0
|Same as the PNV-57A, but in a box containing two units
|
|-
|PNW-2
|Unknown, but presumably 0
|Unit of Polish origin similar to PNV-57, except that it is a monocular with an adjustable mount. Included in the transport box are two separate monoculars. Very uncommon.<ref>https://www.reddit.com/r/NightVision/comments/x94cfa/strange_russian_goggle/</ref>
|
|-
|PNV-57H
|0
|Czech handheld clone of the PNV-57A
Uses a much larger power supply

Large IR lamp fitted to top of unit

Presumably uses the same V1PM tubes as the default Czechoslovak PNV-57 made by [[Tesla]].
|
|-
|PNV-57K
|0
|???
|
|-
|PNV-57T
|0
|Identical to the PNV-57AK, but in a wooden crate marked accordingly
|
|-
|PNW-57M
|16mm generation-2/3 tubes
|Uses the same body as the PNW-57, but different lenses. <ref>http://www.opticstrade.cz/night-vision-devices/pnv-57-m-en/</ref>
The device is of Polish origin, this is certain because of the PNW designation.
The device appears to shave removed the bulky transformer (Batteries mounted in the former cable spot?)
The device was also in service with Polish artillery units. <ref>http://pzo.warszawa.pl/oferta/optoelektronika-dla-artylerii/152-mm-ahs-dana/</ref>

The device was created to be compatible with existing surplus PNV-57 accessories. [https://www.reddit.com/r/UssrNvgResearchGroup/comments/1az60vn/what_are_theese_are_theese_gen1_or_gen0/]
|
|-
|PNV-57E
|1
|Visually and functionally distinct to PNV-57A models.
Looks like two irregularly shaped cylinders with a large protrusion on the upper side, nearer to the eyepieces.

The unit is painted a green - brown colour, similar to some versions of the PNV-57A

Sometimes seen converted to handheld use, with a power supply mounted on top of the binoculars

Uses generation-1/0+ V-8 tubes. <ref name=":2">https://www.youtube.com/watch?v=0LfyEFIjfgo&t=3s</ref>

Doesn't have the CBK-1 high voltage rectifiers included, as the power supply is different internally.

The device also comes with UFS-8 and KF-19 light blockers and their respective mounts.

It lacks the grease, as field disassembly was rendered pointless by removal of the rectifiers. <ref name=":1" />
|
|-
|PNV-57ET
|1
|Same as the PNV-57E, but in a box containing two units
|
|-
|PNV-57ETC
|???
|???
|
|-
|PNV-57EM
|1
|Modernised version of the PNV-57E.
Unlike other versions, the power supply for this variant has a battery compartment, eliminating the need for a separate battery pack.

The binoculars are slightly shorter than the PNV-57E, the front lenses replaced with a shorter version with adjustable focus

Uses upgraded V-8A tubes made by [[Ekran Optical Systems|Ekran]]. <ref name=":2" />
|
|-
|BNO
|1
|Magnified binocular version of the PNV-57E
Different front lens design

Power supply, battery compartment and IR illuminator mounted in a long tube mounted on top of the device
|
|-
|BN2
|1
|Similar to the BNO, but with different front lenses and no IR illuminator
|
|}

== References ==
<references />
[[Category:Devices]]

Glossary

2024-04-12T14:15:06Z

EP-33 enthusiast: added quantum efficiency and some sources alongside some sources.

This page contains a comprehensive collection of the terminology used around night vision.

{| class="wikitable"
|+
!Term(s)
!Abbreviation(s)
!Description
|-
|Image Intensifier Tube
[[Image Intensifier]]
|IIT
I²
|The core component of a night vision device. When focused, low light shines into it on one side, the phosphor screen on the other side will show an intensified image.
|-
|[[Signal-to-Noise Ratio (SNR)|Signal-to-Noise Ratio]]
|SNR
|A number that indicates how good an image intensifier is at producing a clear (noise-free) image from a dark scene.
|-
|[[Resolution]]
|Res.
|A number that indicates how sharp the image produced by an image intensifier is.
|-
|[[Gain]]
|
|A measurement of how bright the output image produced by an image intensifier is.
|-
|Fixed Gain
|
|An image intensifier with fixed gain does not offer the user a method of gain adjustment.
|-
|[[External Gain Adjustment Circuit (EGAC)|External Gain Adjustment Circuit]]
[[External Gain Adjustment Circuit (EGAC)|Manual Gain]]

Variable Gain
|EGAC
|A component of some image intensifiers that allows the user to adjust the gain manually.

Especially useful for monocular devices to allow reducing discomfort of only one eye being exposed to the bright output image.
|-
|Autogain
|
|An image intensifier with autogain attempts to keep the output brightness constant throughout different lighting conditions.
Modern image intensifiers both with fixed or with manual gain usually have some form of autogain.

Thus, the term autogain is often used interchangably with fixed gain.
|-
|Gating
[[Autogating]]
|AG
|Autogating is a method used by most modern image intensifiers to avoid overloading and as such damaging their internals when exposed to bright lights.
|-
|Chickenwire
|
|Black straight lines that can form hexagonal or square patterns. Defect of the fiber optical output.
|-
|Fixed Pattern Noise
|FPN
|A hexagonal pattern made of black or white lines. Most Gen. 2 and Gen. 3 image intensifiers exhibit FPN in very high light and some also in low light. It is an artifact of how the [[Microchannel Plate (MCP)|MCP]] is constructed and no cause for worry.
|-
|[[Image Intensifier#Generations|Generation]]
|Gen.
|A number that denotes the technological generation of an image intensifier.
|-
|Date of Manufacture
|DOM
|
|-
|[[Field of View (FOV)|Field of view]]
|FOV
|In night vision, FOV refers to how much of the user's field of vision is covered by the (usually circular) output image.
Higher FOV requires less head movement to observe a scene.
|-
|[[Phosphor Screen|Green Phosphor]]
|GP
|An image intensifier with green phosphor produces a monochrome green output image on the phosphor screen.
|-
|[[Phosphor Screen|White Phosphor]]
|WP
|An image intensifier with green phosphor produces a monochrome white output image on the phosphor screen.

Sometimes with a blueish or greenish tint, depending on the manufacturer.
|-
|Blemish
|Blem
|Completely dark areas of varying sizes and shapes in the output image where an image intensifier "burned out"., usually due to exposure to very bright light, e.g. lasers. Blemishes are permanent.
|-
|Burn-in
Burn
|
|Similar to blemishes, except that the areas aren't completely dark, but instead just less bright than the rest of the image, usually due to exposure to very bright light. Burn-ins are a precursor to blemishes, usually due to shorter or less intense exposure to the light source.
Burn-ins can sometimes be partially or fully reverted by using blackboxing or whiteboxing.
|-
|Blackboxing
|
|A method of stimulating the peculiar ”self-healing” process that some image intensifiers have been found to have, where the image intensifier is left running for extended periods of time in a completely dark enclosure.
|-
|Whiteboxing
|
|Similar to blackboxing, except that the image intensifier is pointed at a uniformly bright surface, e.g. a wall lit up by a flashlight.
Should be performed only as a last resort.
|-
|Emission
Emission Point
|EP
|Permanent damage to an image intensifier manifesting itself in a single point or area in the image that is constantly bright. Emission points can get worse over time and thus image intensifiers with EPs should be avoided.
|-
|Ghosting
|
|A temporary bright spot in the output image of an image intensifier caused by exposure to a very bright source which usually disappears after some minutes of operation. Ghosting is an indicator that prolonged or more severe exposure to the light source can lead to burn-in or blemishes.
|-
|Streaks
|
|Dark or light streaks that form behind sources of light moving in the output image of an image intensifier.
Only visible in some image intensifiers, they disappear very quickly. For many Gen. 3 image intensifiers they occur most easily during the first few minutes of operation. Autogating usually removes the streaks.
|-
|Scintillation
|
|Bright spots which occur on the image screen randomly in space and time.
|-
|Spot
|
|A single black point in the output image, usually a defect introduced during manufacturing.
|-
|Peppering
|
|Multiple tiny spots, can look like a darker cloudy area, usually a defect introduced during manufacturing.
|-
|Zone 1/2/3
|
|A method to describe where on the output image an imperfection lies.
Zone 1 is the inner 1/3 of the image, Zone 3 is only the outer edge of the image, and Zone 2 is the rest inbetween.
|-
|Going To Air
|
|When there is a leak in the vacuum contained inside of the image intensifier a shadow will slowly start creeping into the output image of an image intensifier, either just from one side (like a waning moon) or from all sides.
This process can be very fast or very slow. A tube that is "going to air" should be avoided, as it's irreversible and will mean total failure of the image intensifier at some point in the future.
|-
|Quantum efficiency
|QE
|Quantum efficiency is a unitless value, that states the incident photon to converted electron (IPCE). This measurement is usually given in %. The human eye, when adopted to the dark has a quantum efficiency of around 1-4%. [https://opg.optica.org/josa/abstract.cfm?URI=josa-64-12-1706][https://books.google.at/books/about/Image_Tubes.html?id=3BtOAQAAIAAJ&redir_esc=y]
Various photocathodes have different quantum efficiencies, depending on the wavelength of the incoming light. S-1 photocathodes have a quantum efficiency of up to 1% in the UV range and up to 0.5% in the IR range.[https://books.google.at/books/about/Image_Tubes.html?id=3BtOAQAAIAAJ&redir_esc=y] S-20 photocathodes have a quantum efficiency of up to 24.5% in the UV spectrum and a quantum efficiency of up to 1.5% in the IR range. S25 photocathodes have a quantum efficiency of up to 16.5% in the UV spectrum and up to 12.5% in the IR range (that being said the S-25's response range ranges farther into the IR range than the S-20).[https://lambertinstruments.com/photocathodes][https://www.researchgate.net/figure/Quantum-efficiency-of-different-photocathode-materials-Data-were-obtained-from-detector_fig9_41436013]
|}

[[Category:Meta]]

PNV-57

2024-04-12T13:24:13Z

EP-33 enthusiast: Fixed some things about the PNW-57M

The PNV-57 is a family of night vision binoculars produced in the soviet union. The design has several variants, either using generation 0 or generation 1 image intensifier tubes. They use an external power supply, with a high voltage cable connecting the supply to the binoculars. Most variants then require an external power source to be connected to this power supply. Originally these units are mounted to a tanker cap style helmet with the power supply worn on the back of the cap. Unlike the later PNV-57E, the device lacks IPD adjustment. The device is often supplied with additional CBK-1 high voltage rectifiers. The device also comes with a small bottle of sealing grease, that is to be reapplied when the device is taken apart (i.e to replace the rectifiers).<ref name=":0">https://www.youtube.com/watch?v=aW-5H-4Tqhs&t=276s</ref><ref name=":1">https://www.rwd-mb3.de/pages/pnw57.htm</ref>

== Variants ==
{| class="wikitable"
|+
!Device
!Generation
!Information
!Image
|-
|PNV-57
|0
|Goggles look like two smooth cylinders with a flat underside.
Painted grey, green, brown and black.

Utilizes V1PM generation-0 tubes, these are slightly smaller than V-8 and EP-33 tubes.

Early variants of the device had the high voltage cable coming straight out of the transformer, this however caused them to be frequently damaged when put in the box. Thus later models had the cables coming out at an angle.<ref name=":0" />

This variant of the device comes with AF-2 IR filters and A-55 IR emitters. The IR filters are made from a type of glass that has a high manganese content.

The device also comes with spare bulbs for the A-55 light.<ref name=":1" />
|
|-
|PNW-57
|0
|Polish copy of the PNV-57. The main difference between the PNW-57 and Czechoslovakian PNV-57 is that it has ear outserts where headphones can be inserted. The device comes in either a green wooden box or grey metal box, similar to its Czechoslovakian counterpart, but with slightly different dimensions and a slightly lighter tone of grey. The device also uses a different type of illuminator with the same plug as the device itself.
The device uses W1PM tubes of indigenous production.
|
|-
|PNV-57A
|0
|Same as the PNV-57, but uses a different transformer.
|
|-
|PNV57AM
|???
|???
|
|-
|PNV-57AK
|0
|Same as the PNV-57A, but in a box containing two units
|
|-
|PNW-2
|Unknown, but presumably 0
|Unit of Polish origin similar to PNV-57, except that it is a monocular with an adjustable mount. Included in the transport box are two separate monoculars. Very uncommon.<ref>https://www.reddit.com/r/NightVision/comments/x94cfa/strange_russian_goggle/</ref>
|
|-
|PNV-57H
|0
|Czech handheld clone of the PNV-57A
Uses a much larger power supply

Large IR lamp fitted to top of unit

Presumably uses the same V1PM tubes as the default Czechoslovak PNV-57 made by [[Tesla]].
|
|-
|PNV-57K
|0
|???
|
|-
|PNV-57T
|0
|Identical to the PNV-57AK, but in a wooden crate marked accordingly
|
|-
|PNW-57M
|????
|Uses the same body as the PNW-57, but different lenses. <ref>http://www.opticstrade.cz/night-vision-devices/pnv-57-m-en/</ref>
The device is of Polish origin, this is certain because of the PNW designation.
The device appears to shave removed the bulky transformer (Batteries mounted in the former cable spot?)
The device was also in service with Polish artillery units. [http://pzo.warszawa.pl/oferta/optoelektronika-dla-artylerii/152-mm-ahs-dana/]
|
|-
|PNV-57E
|1
|Visually and functionally distinct to PNV-57A models.
Looks like two irregularly shaped cylinders with a large protrusion on the upper side, nearer to the eyepieces.

The unit is painted a green - brown colour, similar to some versions of the PNV-57A

Sometimes seen converted to handheld use, with a power supply mounted on top of the binoculars

Uses generation-1/0+ V-8 tubes. <ref name=":2">https://www.youtube.com/watch?v=0LfyEFIjfgo&t=3s</ref>

Doesn't have the CBK-1 high voltage rectifiers included, as the power supply is different internally.

The device also comes with UFS-8 and KF-19 light blockers and their respective mounts.

It lacks the grease, as field disassembly was rendered pointless by removal of the rectifiers. <ref name=":1" />
|
|-
|PNV-57ET
|1
|Same as the PNV-57E, but in a box containing two units
|
|-
|PNV-57ETC
|???
|???
|
|-
|PNV-57EM
|1
|Modernised version of the PNV-57E.
Unlike other versions, the power supply for this variant has a battery compartment, eliminating the need for a separate battery pack.

The binoculars are slightly shorter than the PNV-57E, the front lenses replaced with a shorter version with adjustable focus

Uses upgraded V-8A tubes made by [[Ekran Optical Systems|Ekran]]. <ref name=":2" />
|
|-
|BNO
|1
|Magnified binocular version of the PNV-57E
Different front lens design

Power supply, battery compartment and IR illuminator mounted in a long tube mounted on top of the device
|
|-
|BN2
|1
|Similar to the BNO, but with different front lenses and no IR illuminator
|
|}

== References ==
<references />
[[Category:Devices]]

User:EP-33 enthusiast

2024-04-03T18:09:00Z

EP-33 enthusiast:

PNV-57

2024-04-03T13:13:07Z

EP-33 enthusiast: fixed issues with the polish PNW-57

The PNV-57 is a family of night vision binoculars produced in the soviet union. The design has several variants, either using generation 0 or generation 1 image intensifier tubes. They use an external power supply, with a high voltage cable connecting the supply to the binoculars. Most variants then require an external power source to be connected to this power supply. Originally these units are mounted to a tanker cap style helmet with the power supply worn on the back of the cap. Unlike the later PNV-57E, the device lacks IPD adjustment. The device is often supplied with additional CBK-1 high voltage rectifiers. The device also comes with a small bottle of sealing grease, that is to be reapplied when the device is taken apart (i.e to replace the rectifiers).<ref name=":0">https://www.youtube.com/watch?v=aW-5H-4Tqhs&t=276s</ref><ref name=":1">https://www.rwd-mb3.de/pages/pnw57.htm</ref>

== Variants ==
{| class="wikitable"
|+
!Device
!Generation
!Information
!Image
|-
|PNV-57
|0
|Goggles look like two smooth cylinders with a flat underside.
Painted grey, green, brown and black.

Utilizes V1PM generation-0 tubes, these are slightly smaller than V-8 and EP-33 tubes.

Early variants of the device had the high voltage cable coming straight out of the transformer, this however caused them to be frequently damaged when put in the box. Thus later models had the cables coming out at an angle.<ref name=":0" />

This variant of the device comes with AF-2 IR filters and A-55 IR emitters. The IR filters are made from a type of glass that has a high manganese content.

The device also comes with spare bulbs for the A-55 light.<ref name=":1" />
|
|-
|PNW-57
|0
|Polish copy of the PNV-57. The main difference between the PNW-57 and Czechoslovakian PNV-57 is that it has ear outserts where headphones can be inserted. The device comes in either a green wooden box or grey metal box, similar to its Czechoslovakian counterpart, but with slightly different dimensions and a slightly lighter tone of grey. The device also uses a different type of illuminator with the same plug as the device itself.
The device uses W1PM tubes of indigenous production.
|
|-
|PNV-57A
|0
|Same as the PNV-57, but uses a different transformer.
|
|-
|PNV57AM
|???
|???
|
|-
|PNV-57AK
|0
|Same as the PNV-57A, but in a box containing two units
|
|-
|PNW-2
|Unknown, but presumably 0
|Unit of Polish origin similar to PNV-57, except that it is a monocular with an adjustable mount. Included in the transport box are two separate monoculars. Very uncommon.<ref>https://www.reddit.com/r/NightVision/comments/x94cfa/strange_russian_goggle/</ref>
|
|-
|PNV-57H
|0
|Czech handheld clone of the PNV-57A
Uses a much larger power supply

Large IR lamp fitted to top of unit

Presumably uses the same V1PM tubes as the default Czechoslovak PNV-57 made by [[Tesla]].
|
|-
|PNV-57K
|0
|???
|
|-
|PNV-57T
|0
|Identical to the PNV-57AK, but in a wooden crate marked accordingly
|
|-
|PNV-57M
|????
|Uses the same body as the PNV-57, but different lenses, possibly of Czechoslovak origin<ref>http://www.opticstrade.cz/night-vision-devices/pnv-57-m-en/</ref>
|
|-
|PNV-57E
|1
|Visually and functionally distinct to PNV-57A models.
Looks like two irregularly shaped cylinders with a large protrusion on the upper side, nearer to the eyepieces.

The unit is painted a green - brown colour, similar to some versions of the PNV-57A

Sometimes seen converted to handheld use, with a power supply mounted on top of the binoculars

Uses generation-1/0+ V-8 tubes. <ref name=":2">https://www.youtube.com/watch?v=0LfyEFIjfgo&t=3s</ref>

Doesn't have the CBK-1 high voltage rectifiers included, as the power supply is different internally.

The device also comes with UFS-8 and KF-19 light blockers and their respective mounts.

It lacks the grease, as field disassembly was rendered pointless by removal of the rectifiers. <ref name=":1" />
|
|-
|PNV-57ET
|1
|Same as the PNV-57E, but in a box containing two units
|
|-
|PNV-57ETC
|???
|???
|
|-
|PNV-57EM
|1
|Modernised version of the PNV-57E.
Unlike other versions, the power supply for this variant has a battery compartment, eliminating the need for a separate battery pack.

The binoculars are slightly shorter than the PNV-57E, the front lenses replaced with a shorter version with adjustable focus

Uses upgraded V-8A tubes made by [[Ekran Optical Systems|Ekran]]. <ref name=":2" />
|
|-
|BNO
|1
|Magnified binocular version of the PNV-57E
Different front lens design

Power supply, battery compartment and IR illuminator mounted in a long tube mounted on top of the device
|
|-
|BN2
|1
|Similar to the BNO, but with different front lenses and no IR illuminator
|
|}

== References ==
<references />
[[Category:Devices]]

User:EP-33 enthusiast

2024-03-30T13:24:08Z

EP-33 enthusiast: added PNV-57 pictures

File:Device PNV.jpg

2024-03-30T12:37:37Z

EP-33 enthusiast: added to devices

=={{int:filedesc}}==
{{Information
|description={{en|1=Device with helmet, the helmet is size 60}}
|date=2024-03-26
|source={{own}}
|author=[[User:EP-33 enthusiast|EP-33 enthusiast]]
|permission=
|other versions=
}}

=={{int:license-header}}==
{{self|cc-by-sa-4.0}}
[[Category:Devices]]

NSFG-87

2024-03-29T15:23:35Z

EP-33 enthusiast: added the NSFG-87 to devices

The NSFG-87 is a night vision device of Austrian origin. The device is bi-ocular and has a tube of unknown generation. The device has a magnification of 2.4x and can take both 1.5 volt batteries and 1.2 volt accumulators. It has a focusing range of 10 meters to infinity. Its weight is 2.1 kg. [https://www.bmlv.gv.at/info_werbematerial/soldat/pdf/soldat2011_web.pdf] some of these devices have been surpluses to Serbia and north Macedonia. [https://services.bka.gv.at/mrd-xxv/38/38_8_gesetz.pdf] [https://www.parlament.gv.at/dokument/XXV/I/1108/fname_528180.pdf] These devices have yet to appear on the surplus market and are thus (presumably) still in service with the Bundesheer.
[[Category:Devices]]