Night Vision Wiki - User contributions [en]

Carlough Manufacturing

2025-07-08T20:17:59Z

Chainsawjesus: Started a briefing, and added my logo.

Carlough Manufacturing, based out of the united states, selling a wide variety of night vision equipment and parts, and specializing in older and more obscure devices and repairs.

DOD CAGE Code 137T2
[[File:Carlough Manufacturing Logo.png|alt=Carlough Manufacturing Logo|thumb|Carlough Manufacturing Logo]]
[[Category:Retailer]]

File:Carlough Manufacturing Logo.png

2025-07-08T20:17:22Z

Chainsawjesus:

Carlough Manufacturing Logo

Optix Diana (single tube)

2025-07-08T20:13:51Z

Chainsawjesus: /* References */

== Optix Diana (Single Tube Bi-Ocular) ==

=== Summary ===
[[File:Diana overall 1.jpg|alt=Diana overall 1|thumb|Diana overall 1]]
The Optix Diana Bi-ocular is a single-tube, dual-eye night vision device developed and manufactured by Optix Co. of Bulgaria. Designed for military, law enforcement, and surveillance applications. It uses a second or third-generation image intensifier tube, and is comparable in layout and function to the American AN/PVS-7 system.
[[File:Diana overall 2.jpg|alt=Diana overall 2|thumb|Diana overall 2]]
The device is typically mounted on a helmet, headgear and features integrated infrared (IR) illumination, automatic brightness control, and robust environmental sealing. It is widely used by NATO-aligned and regional defense forces, particularly in Eastern Europe.

=== Design ===
The Diana Biocular features a single image intensifier tube with a dual eyepiece (bi-ocular) viewing system, allowing both eyes to view roughly the same intensified image. Due to collimator design, each eye has a somewhat more separate view, extending its associated right or left field of view. This improves user comfort and the feeling of depth perception (even if it is false depth perception) over long periods of use compared to monocular systems. Its rugged, lightweight housing is waterproof and built to MIL-STD environmental specifications.

The standard version uses 1× magnification, though other Diana variants with higher magnifications (3×, 5×, 10×) are available. The system can be handheld or mounted and is powered by two standard AA batteries.

Environmental seal is accomplished by the use of oirings behind each screw on the ocular assembly, and silicone sealant around the edge where the main body and ocular assembly meet. Note that this will make disassembly more challenging, as even after removing all the screws, the silicone glue will hold the two together. Be careful using force to separate the two, as there are still wires for the indicator lights present, so force must be used, but with extreme care.

Interestingly, the collimator in this bi-ocular is actually a two part design unlike the PVS7, with the collimating lenses being mounted to the main body, and the reflector being mounted to the rear ocular assembly. In the photo below, you can also see the reed switch located in the top left, next to the power switch. This reed switch is the on/off control for utilizing the magnet in the helmet or head mount.
[[File:Board and collimator splitter.jpg|alt=Board and collimator splitter|thumb|Board and collimator splitter]]

=== Technical Specifications ===
Manufacturer: Optix Co., Bulgaria

Magnification: 1× (unity)

F-number 1.3

Focus Range: 25 cm to infinity

Image Intensifier Tube: Gen 2+ or Gen 3 (depending on variant)

Field of View (FOV): ~43° (See product brochure)

Resolution: ≥ 57 lp/mm (typical for Gen 2+), ≥ 64 lp/mm (Gen 3)

Diopter Adjustment: –6 to +4

Exit pupil diameter: 17 mm

Exit pupil relief: 8 mm

Inter-pupil distance: 54 to 76 mm

Infrared Illuminator: Built-in, switchable

Power Supply: 2 × AA batteries

Battery Life: Up to 60 hours (without IR)

Dimensions: Approx 160 × 140 × 80 mm (model-dependent)

Weight: ≤ 550 g (without the battery), ~600–700 g (including batteries)

Operating Temperature -50 ÷ +50°C

Storage temperature: -56 ÷ +65°C

Water Resistance: Waterproof (IP67 or MIL-STD-810F equivalent)

Overall dimensions (L x W x H): 147 x 141 x 64 mm (without the eyecups)

Listed Operation time:

40 hours (alkaline),

20 hours (rechargeable),

65 hours (lithium)

Calculated performance range*

Detection range: 210 m ÷ 350 m

Orientation range: 180 m ÷ 290 m

Recognition range: 84 m ÷ 140 m

Identification range: 40 m ÷ 65 m
[[File:Diana tube.jpg|thumb|Diana tube, this one is likely a Herder Digital gen 3]]
Tube: 18mm non-inverting (MX10130) with rear alignment nubs removed, and flying leads instead of pads.

Mounting: Head mount / helmet mount compatible

=== Features ===
Automatic Brightness Control (ABC): Maintains image clarity in varying light levels.

Bright Light Protection: Protects the tube from damage in sudden high-light conditions.

IR Illuminator: Integrated for use in complete darkness or enclosed spaces.

Flexible Mounting Options: Compatible with headgear or tripod accessories.

Operational Use

The Diana Biocular is used in:

Military reconnaissance and patrol operations

Border surveillance

Special police units and tactical teams

Search and rescue in low-visibility environments

It is particularly suited for users who prefer both-eye viewing while maintaining low weight and compact dimensions compared to binocular systems.

=== Variants ===
Optix produces several variants under the Diana product line:

Diana 3× / 5× / 10× – Long-range night vision binoculars with higher magnification
[[File:Diana power switch.jpg|alt=Optix Diana Power switch and markings|thumb|Optix Diana Power switch and markings]]

=== Switch Positions ===
Listed from top to bottom:

1: On headmount only, tube on, IR illuminator on.

2. On headmount only, tube on. (momentary illuminator available on button press)

3. Off

4. handheld mode, Tube on. (momentary illuminator available on button press)

Take note that when not on a head mount or helmet mount, the top two positions will not work, and the device will be "off", until a magnet is placed on top of the device body, about centered between the mounting slot and the switch. A magnet in this location will close the reed switch mounted inside the body, around that location.

With mounts so poorly available, this should be considered if making your own.

=== See Also ===
AN/PVS-7

Optix Co. (Bulgaria)

Gen 2+ and Gen 3 night vision

=== References ===
Optix Co. Diana Product Brochure. <nowiki>https://www.optixco.com</nowiki>
[[File:Optix Diana sales brochure.pdf|thumb|Optix Diana sales brochure]]
Night Vision User Manual – Optix Diana Series
[[Category:Devices]]

File:Optix Diana sales brochure.pdf

2025-07-08T20:13:34Z

Chainsawjesus:

Optix Diana sales brochure

User:Chainsawjesus

2025-07-08T20:06:54Z

Chainsawjesus: Created page with "The man with too much NODs autism and too much time on his hands, and owner of Carlough Manufacturing. https://carloughmanufacturing.com"

The man with too much NODs autism and too much time on his hands, and owner of Carlough Manufacturing.
https://carloughmanufacturing.com

Optix Diana (single tube)

2025-07-08T19:13:50Z

Chainsawjesus: added photos, and small additions.

== Optix Diana (Single Tube Bi-Ocular) ==

=== Summary ===
[[File:Diana overall 1.jpg|alt=Diana overall 1|thumb|Diana overall 1]]
The Optix Diana Bi-ocular is a single-tube, dual-eye night vision device developed and manufactured by Optix Co. of Bulgaria. Designed for military, law enforcement, and surveillance applications. It uses a second or third-generation image intensifier tube, and is comparable in layout and function to the American AN/PVS-7 system.
[[File:Diana overall 2.jpg|alt=Diana overall 2|thumb|Diana overall 2]]
The device is typically mounted on a helmet, headgear and features integrated infrared (IR) illumination, automatic brightness control, and robust environmental sealing. It is widely used by NATO-aligned and regional defense forces, particularly in Eastern Europe.

=== Design ===
The Diana Biocular features a single image intensifier tube with a dual eyepiece (bi-ocular) viewing system, allowing both eyes to view roughly the same intensified image. Due to collimator design, each eye has a somewhat more separate view, extending its associated right or left field of view. This improves user comfort and the feeling of depth perception (even if it is false depth perception) over long periods of use compared to monocular systems. Its rugged, lightweight housing is waterproof and built to MIL-STD environmental specifications.

The standard version uses 1× magnification, though other Diana variants with higher magnifications (3×, 5×, 10×) are available. The system can be handheld or mounted and is powered by two standard AA batteries.

Environmental seal is accomplished by the use of oirings behind each screw on the ocular assembly, and silicone sealant around the edge where the main body and ocular assembly meet. Note that this will make disassembly more challenging, as even after removing all the screws, the silicone glue will hold the two together. Be careful using force to separate the two, as there are still wires for the indicator lights present, so force must be used, but with extreme care.

Interestingly, the collimator in this bi-ocular is actually a two part design unlike the PVS7, with the collimating lenses being mounted to the main body, and the reflector being mounted to the rear ocular assembly. In the photo below, you can also see the reed switch located in the top left, next to the power switch. This reed switch is the on/off control for utilizing the magnet in the helmet or head mount.
[[File:Board and collimator splitter.jpg|alt=Board and collimator splitter|thumb|Board and collimator splitter]]

=== Technical Specifications ===
Manufacturer: Optix Co., Bulgaria

Magnification: 1× (unity)

F-number 1.3

Focus Range: 25 cm to infinity

Image Intensifier Tube: Gen 2+ or Gen 3 (depending on variant)

Field of View (FOV): ~43° (See product brochure)

Resolution: ≥ 57 lp/mm (typical for Gen 2+), ≥ 64 lp/mm (Gen 3)

Diopter Adjustment: –6 to +4

Exit pupil diameter: 17 mm

Exit pupil relief: 8 mm

Inter-pupil distance: 54 to 76 mm

Infrared Illuminator: Built-in, switchable

Power Supply: 2 × AA batteries

Battery Life: Up to 60 hours (without IR)

Dimensions: Approx 160 × 140 × 80 mm (model-dependent)

Weight: ≤ 550 g (without the battery), ~600–700 g (including batteries)

Operating Temperature -50 ÷ +50°C

Storage temperature: -56 ÷ +65°C

Water Resistance: Waterproof (IP67 or MIL-STD-810F equivalent)

Overall dimensions (L x W x H): 147 x 141 x 64 mm (without the eyecups)

Listed Operation time:

40 hours (alkaline),

20 hours (rechargeable),

65 hours (lithium)

Calculated performance range*

Detection range: 210 m ÷ 350 m

Orientation range: 180 m ÷ 290 m

Recognition range: 84 m ÷ 140 m

Identification range: 40 m ÷ 65 m
[[File:Diana tube.jpg|thumb|Diana tube, this one is likely a Herder Digital gen 3]]
Tube: 18mm non-inverting (MX10130) with rear alignment nubs removed, and flying leads instead of pads.

Mounting: Head mount / helmet mount compatible

=== Features ===
Automatic Brightness Control (ABC): Maintains image clarity in varying light levels.

Bright Light Protection: Protects the tube from damage in sudden high-light conditions.

IR Illuminator: Integrated for use in complete darkness or enclosed spaces.

Flexible Mounting Options: Compatible with headgear or tripod accessories.

Operational Use

The Diana Biocular is used in:

Military reconnaissance and patrol operations

Border surveillance

Special police units and tactical teams

Search and rescue in low-visibility environments

It is particularly suited for users who prefer both-eye viewing while maintaining low weight and compact dimensions compared to binocular systems.

=== Variants ===
Optix produces several variants under the Diana product line:

Diana 3× / 5× / 10× – Long-range night vision binoculars with higher magnification
[[File:Diana power switch.jpg|alt=Optix Diana Power switch and markings|thumb|Optix Diana Power switch and markings]]

=== Switch Positions ===
Listed from top to bottom:

1: On headmount only, tube on, IR illuminator on.

2. On headmount only, tube on. (momentary illuminator available on button press)

3. Off

4. handheld mode, Tube on. (momentary illuminator available on button press)

Take note that when not on a head mount or helmet mount, the top two positions will not work, and the device will be "off", until a magnet is placed on top of the device body, about centered between the mounting slot and the switch. A magnet in this location will close the reed switch mounted inside the body, around that location.

With mounts so poorly available, this should be considered if making your own.

=== See Also ===
AN/PVS-7

Optix Co. (Bulgaria)

Gen 2+ and Gen 3 night vision

=== References ===
Optix Co. Diana Product Brochure. <nowiki>https://www.optixco.com</nowiki>

Technical Specification Sheet – Diana Biocular, 1× Gen 2+ Model

NATO Equipment Reference Guide (Balkan Defense Systems)

Night Vision User Manual – Optix Diana Series
[[Category:Devices]]

File:Diana tube.jpg

2025-07-08T19:10:55Z

Chainsawjesus:

Diana tube

File:Board and collimator splitter.jpg

2025-07-08T19:09:28Z

Chainsawjesus:

Board and collimator splitter

File:Diana power switch.jpg

2025-07-08T19:07:56Z

Chainsawjesus:

Power switch and markings

File:Diana overall 2.jpg

2025-07-08T19:05:59Z

Chainsawjesus:

Diana overall 2

File:Diana overall 1.jpg

2025-07-08T19:05:18Z

Chainsawjesus:

Diana overall 1

Optix Diana (single tube)

2025-07-08T15:20:07Z

Chainsawjesus: added category

== Optix Diana (Single Tube Bi-Ocular) ==

=== Summary ===
The Optix Diana Bi-ocular is a single-tube, dual-eye night vision device developed and manufactured by Optix Co. of Bulgaria. Designed for military, law enforcement, and surveillance applications. It uses a second or third-generation image intensifier tube, and is comparable in layout and function to the American AN/PVS-7 system.

The device is typically mounted on a helmet, headgear and features integrated infrared (IR) illumination, automatic brightness control, and robust environmental sealing. It is widely used by NATO-aligned and regional defense forces, particularly in Eastern Europe.

=== Design ===
The Diana Biocular features a single image intensifier tube with a dual eyepiece (bi-ocular) viewing system, allowing both eyes to view roughly the same intensified image. Due to collimator design, each eye has a somewhat more separate view, extending its associated right or left field of view. This improves user comfort and the feeling of depth perception (even if it is false depth perception) over long periods of use compared to monocular systems. Its rugged, lightweight housing is waterproof and built to MIL-STD environmental specifications.

The standard version uses 1× magnification, though other Diana variants with higher magnifications (3×, 5×, 10×) are available. The system can be handheld or mounted and is powered by two standard AA batteries.

Environmental seal is accomplished by the use of oirings behind each screw on the ocular assembly, and silicone sealant around the edge where the main body and ocular assembly meet. Note that this will make disassembly more challenging, as even after removing all the screws, the silicone glue will hold the two together. Be careful using force to separate the two, as there are still wires for the indicator lights present, so force must be used, but with extreme care.

=== Technical Specifications ===
Manufacturer: Optix Co., Bulgaria

Magnification: 1× (unity)

F-number 1.3

Focus Range: 25 cm to infinity

Image Intensifier Tube: Gen 2+ or Gen 3 (depending on variant)

Field of View (FOV): ~43° (See product brochure)

Resolution: ≥ 57 lp/mm (typical for Gen 2+), ≥ 64 lp/mm (Gen 3)

Diopter Adjustment: –6 to +4

Exit pupil diameter: 17 mm

Exit pupil relief: 8 mm

Inter-pupil distance: 54 to 76 mm

Infrared Illuminator: Built-in, switchable

Power Supply: 2 × AA batteries

Battery Life: Up to 60 hours (without IR)

Dimensions: Approx 160 × 140 × 80 mm (model-dependent)

Weight: ≤ 550 g (without the battery), ~600–700 g (including batteries)

Operating Temperature -50 ÷ +50°C

Storage temperature: -56 ÷ +65°C

Water Resistance: Waterproof (IP67 or MIL-STD-810F equivalent)

Overall dimensions (L x W x H): 147 x 141 x 64 mm (without the eyecups)

Listed Operation time:

40 hours (alkaline),

20 hours (rechargeable),

65 hours (lithium)

Calculated performance range*

Detection range: 210 m ÷ 350 m

Orientation range: 180 m ÷ 290 m

Recognition range: 84 m ÷ 140 m

Identification range: 40 m ÷ 65 m

Tube: 18mm non-inverting (MX10130) with rear alignment nubs removed, and flying leads instead of pads.

Mounting: Head mount / helmet mount compatible

=== Features ===
Automatic Brightness Control (ABC): Maintains image clarity in varying light levels.

Bright Light Protection: Protects the tube from damage in sudden high-light conditions.

IR Illuminator: Integrated for use in complete darkness or enclosed spaces.

Flexible Mounting Options: Compatible with headgear or tripod accessories.

Operational Use

The Diana Biocular is used in:

Military reconnaissance and patrol operations

Border surveillance

Special police units and tactical teams

Search and rescue in low-visibility environments

It is particularly suited for users who prefer both-eye viewing while maintaining low weight and compact dimensions compared to binocular systems.

=== Variants ===
Optix produces several variants under the Diana product line:

Diana 3× / 5× / 10× – Long-range night vision binoculars with higher magnification

=== Switch Positions ===
Listed from top to bottom:

1: On headmount only, tube on, IR illuminator on.

2. On headmount only, tube on. (momentary illuminator available on button press)

3. Off

4. handheld mode, Tube on. (momentary illuminator available on button press)

Take note that when not on a head mount or helmet mount, the top two positions will not work, and the device will be "off", until a magnet is placed on top of the device body, about centered between the mounting slot and the switch. A magnet in this location will close the reed switch mounted inside the body, around that location.

With mounts so poorly available, this should be considered if making your own.

=== See Also ===
AN/PVS-7

Optix Co. (Bulgaria)

Gen 2+ and Gen 3 night vision

=== References ===
Optix Co. Diana Product Brochure. <nowiki>https://www.optixco.com</nowiki>

Technical Specification Sheet – Diana Biocular, 1× Gen 2+ Model

NATO Equipment Reference Guide (Balkan Defense Systems)

Night Vision User Manual – Optix Diana Series
[[Category:Devices]]

Optix Diana (single tube)

2025-07-08T14:42:07Z

Chainsawjesus: minor changes with formatting and switch info

Optix Diana (single tube)

2025-07-08T14:31:30Z

Chainsawjesus: Added everything, will need to add photos later

== Optix Diana (Single Tube Bi-Ocular) ==

=== Summary ===
The Optix Diana Bi-ocular is a single-tube, dual-eye night vision device developed and manufactured by Optix Co. of Bulgaria. Designed for military, law enforcement, and surveillance applications. It uses a second or third-generation image intensifier tube, and is comparable in layout and function to the American AN/PVS-7 system.

The device is typically mounted on a helmet, headgear and features integrated infrared (IR) illumination, automatic brightness control, and robust environmental sealing. It is widely used by NATO-aligned and regional defense forces, particularly in Eastern Europe.

=== Design ===
The Diana Biocular features a single image intensifier tube with a dual eyepiece (bi-ocular) viewing system, allowing both eyes to view roughly the same intensified image. Due to collimator design, each eye has a somewhat more separate view, extending its associated right or left field of view. This improves user comfort and the feeling of depth perception (even if it is false depth perception) over long periods of use compared to monocular systems. Its rugged, lightweight housing is waterproof and built to MIL-STD environmental specifications.

The standard version uses 1× magnification, though other Diana variants with higher magnifications (3×, 5×, 10×) are available. The system can be handheld or mounted and is powered by two standard AA batteries.

Environmental seal is accomplished by the use of oirings behind each screw on the ocular assembly, and silicone sealant around the edge where the main body and ocular assembly meet. Note that this will make disassembly more challenging, as even after removing all the screws, the silicone glue will hold the two together. Be careful using force to separate the two, as there are still wires for the indicator lights present, so force must be used, but with extreme care.

=== Technical Specifications ===
Manufacturer: Optix Co., Bulgaria

Model: Diana Biocular (Single-Tube)

Magnification: 1× (unity)

F-number 1.3

Focus Range: 25 cm to infinity

Image Intensifier Tube: Gen 2+ or Gen 3 (depending on variant)

Field of View (FOV): ~43° (See product brochure)

Resolution: ≥ 57 lp/mm (typical for Gen 2+), ≥ 64 lp/mm (Gen 3)

Diopter Adjustment –6 to +4

Exit pupil diameter 17 mm

Exit pupil relief 8 mm

Inter-pupil distance 54 ÷ 76 mm

Infrared Illuminator Built-in, switchable

Power Supply 2 × AA batteries

Battery Life Up to 60 hours (without IR)

Dimensions Approx. 160 × 140 × 80 mm (model-dependent)

Weight ≤ 550 g (without the battery), ~600–700 g (including batteries)

Operating Temperature -50 ÷ +50°C

Storage temperature -56 ÷ +65°C

Water Resistance Waterproof (IP67 or MIL-STD-810F equivalent)

Overall dimensions (L x W x H) 147 x 141 x 64 mm (without the eyecups)

Operation time 40 hours (alkaline),

20 hours (rechargeable),

65 hours (lithium)

Calculated performance range*

Detection range 210 m ÷ 350 m

Orientation range 180 m ÷ 290 m

Recognition range 84 m ÷ 140 m

Identification range 40 m ÷ 65 m

Tube: 18mm non-inverting (MX10130) with rear alignment nubs removed, and flying leads instead of pads.

Mounting Head mount / helmet mount compatible

=== Features ===
Automatic Brightness Control (ABC): Maintains image clarity in varying light levels.

Bright Light Protection: Protects the tube from damage in sudden high-light conditions.

IR Illuminator: Integrated for use in complete darkness or enclosed spaces.

Flexible Mounting Options: Compatible with headgear or tripod accessories.

Operational Use

The Diana Biocular is used in:

Military reconnaissance and patrol operations

Border surveillance

Special police units and tactical teams

Search and rescue in low-visibility environments

It is particularly suited for users who prefer both-eye viewing while maintaining low weight and compact dimensions compared to binocular systems.

=== Variants ===
Optix produces several variants under the Diana product line:

Diana 3× / 5× / 10× – Long-range night vision binoculars with higher magnification

=== Switch Positions ===
Listed from top to bottom:

1: on headmount only, tube on, IR illuminator on.

2. on headmount only, tube on. (momentary illuminator available on button press)

3. Off

4. handheld mode, Tube on. (momentary illuminator available on button press)

=== See Also ===
AN/PVS-7

Optix Co. (Bulgaria)

Gen 2+ and Gen 3 night vision

=== References ===
Optix Co. Diana Product Brochure. <nowiki>https://www.optixco.com</nowiki>

Technical Specification Sheet – Diana Biocular, 1× Gen 2+ Model

NATO Equipment Reference Guide (Balkan Defense Systems)

Night Vision User Manual – Optix Diana Series

AN/PVS-2

2025-07-06T18:03:19Z

Chainsawjesus: /* Further Reading */

{{Stub}}

== Introduction: ==
The U.S. Army AN/PVS-2 is a first generation night vision device, first developed during the Vietnam war era, which quickly went through several different revisions. All revision rely on a Three stage cascade tube, generation 1, with a fiber optic output containing the engraved reticle, which is non-illuminated. One of the most commonly seen variants is the Israeli model, which is nearly identical to later US models (but with labeling typically in Hebrew, not English, and usually sporting the later style tubes which do not require a high voltage oscillator, and instead typically use a "plug" in place of the oscillator to simply pass voltage from switch, to tube)
[[File:PVS2 ABC warning on tube.jpg|thumb|PVS2 ABC warning on tube]]

Note: A good image of a PVS2 would be nice here, and an Image of oscillator would be good to add here too. Please feel free to add them, I would appreciate that.

While very large and heavy by "modern" standards, the 6 pound passive starlight PVS 2s were considered state of the art when it came to the capabilities of U.S. troops fighting at night. This has earned it a serious reputation, and leads to its commonplace depiction in media.

These scopes first entered service at the height of the Vietnam War, and despite their cumbersome size and weight, they did prove its use among Soldiers and Marines in their patrol bases. It was generally too heavy to carry out on many patrols, but as a rifle equipped with one on a post at night where mobility wasn’t an issue, it could be a force multiplier, especially for repelling attacks at night.

These do not feature any IR emitter, and do not emit any light of their own, relying on incoming light. As they emit no light of any kind (IR/UV/etc) they are not detectable, however this also means that they are of limited use when there is no ambient light, which is why they are usually termed "starlight" scopes. Clear nights with star or moon light are optimal, while a cloudy night with no moon far from a city can render them ineffective.

The AN/PVS-2 was intended as a rifle scope, and has a standard mount on the bottom for attaching to rails, Most commonly the m14 Rifle (side of the receiver mount), the m16 (via the carry handle), and on the 50 caliber M2, via a large receiver wrap around mount. Typical construction is a cast aluminum body, with most other components, including battery cap (to the rear, above the ocular) and oscillator cap (on top, towards the objective) being machined aluminum.
[[File:PVS-2 Mount.jpg|thumb|PVS-2 Mount, showing zeroing knobs]]

Some of these scopes will feature an additional green ring with piece of glass, that fits over the ocular lens, between it and the eyecup. Allegedly, this is a piece of leaded glass, added due to alleged radiation being emitted by the scopes ocular lens (The ocular lens of the device is thoriated.), with troops being told the green ring addition was leaded glass to prevent the user from being irradiated. As of writing this, no primary material showing this has been made available showing what this green ring lens does, but the rumor is commonly spoken about.
[[File:20250701 212558.jpg|thumb|PVS-2 Green ocular lens ring]]

This scope was in service for years, and the data label on the side of the scope gives information regarding the version. Israeli versions will have Hebrew for On/Off engraved into the housing.

[[File:PVS-2 Green ocular ring.jpg|thumb]]

=== Basic use: ===
Most models feature a simple on/off lever-style switch on the top left side of the device, some have "wings" to prevent the switch from being inadvertently toggled.
[[File:PVS-2 Power switch.jpg|thumb|PVS-2 Power switch and protective "wings"]]
For daylight use, an IR filter is Used, it does not feature a pinhole, and is instead a darkened lens.

The rubber eye shield has an internal "flapper" closure that prevents light from escaping the back of the scope, preventing light from spilling out across the user. Press your face to the rubber eyecup, and continue to press, keeping the eyecup compressed, to see through. When you pull back, the flapper will close. This eye shield is nearly identical to the one later used on the PVS-4, with the color being changed from grey to black for the PVS-4.

For the objective focus, simply grab the objective lens, and rotate the entire lens assembly. be careful, as rotating it too far, will unscrew the objective lens, though this requires a significant amount of rotating, the objective has significant threading, and its unlikely this will be done by accident.

Focus on the ocular is much like other devices, with a rotating diopter ring.

Tube models(all are 25mm, 3 stage, generation 1 intensifiers with built in reticle, engraved into the rear output of the tube)

[[File:PVS2 MX-8501A-UV.jpg|alt=PVS2 MX-8501A/UV|thumb|PVS2 MX-8501A/UV]]MX-8501A/UV: Features ABC (automatic brightness Control, prominently noted on the side of the tube in white text). Boot is typically black in color. This Style tube will also have no silver pin on the positive power terminal, and will instead feature a hole, where the pass through plug "ABC adapter"

8586/3: high voltage oscillator required, features silver pin for the oscillator to plug into. Tube is typically white in color. Because the oscillator is external, it will not have the internal oscillator present like on the 8501
[[File:PVS2 8586-3 Intensifer Tube.jpg|alt=PVS-2 8586/3 Intensifier Tube, showing the silver pin the oscillator is inserted onto.|thumb|PVS-2 8586/3 Intensifier Tube, showing the silver pin the oscillator is inserted onto. ]]

[[File:PVS2 bare reticle.jpg|thumb]]

Both tubes have significant edge warping due to the cascade tube setup. Both tubes feature the standard engraved fixed position reticle (non-illuminated). Zeroing is achieved by moving the whole scope on its mount, which features adjustment wheels like on most modern optics, but instead of the reticle moving during adjustment, the entire scope moves instead.

[[File:PVS-2 info from FM20-60 (battlefield illumination).png|alt=PVS-2 info from FM20-60 (battlefield illumination)|thumb|PVS-2 info from FM20-60 (battlefield illumination)]]

PVS2 basic specs:

4x optical magnification

Battery is 6.5 volts, BA1100/U, many have been replaced with 4 AA batteries, or 2 CR123's.

Diopter adjustments from +4 to -4

Tube: MX-8501A/UV (no high voltage oscillator) or 8586/3 (high voltage oscillator required)

Weight is approximately 6 pounds (depending on mount installed)

=== IWS (Weapon-Sight, Image Intensified) ===
The IWS is the British analogue to the US AN/PVS2. It uses a different objective lens and could be mounted to a variety of weapons, including the L1A1 SLR and Enfield L42A1. Later models made use of the more advanced [[P8079HP]] tube.

== Further Reading ==
{{FurtherReading|Link=https://www.bits.de/NRANEU/others/amd-us-archive/FM20-60(70).pdf|Description=FIELD MANUAL, BATTLEFIELD ILLUMINATION, FM 20-60, HEADQUARTERS, DEPARTMENT OF THE ARMY, JANUARY 1970|Title=FIELD MANUAL, BATTLEFIELD ILLUMINATION, FM 20-60}}{{FurtherReading|Title=AN/PVS-2 Starlight Scope: Night Vision Comes of Age|Description=A deep dive by YouTube channel "Our Own Devices"|Link=https://m.youtube.com/watch?v=c0g8Dok5RQI}}

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

AN/PVS-2

2025-07-06T18:01:20Z

Chainsawjesus: added a photo from FM20-60 (battlefield illumination)

{{Stub}}

== Introduction: ==
The U.S. Army AN/PVS-2 is a first generation night vision device, first developed during the Vietnam war era, which quickly went through several different revisions. All revision rely on a Three stage cascade tube, generation 1, with a fiber optic output containing the engraved reticle, which is non-illuminated. One of the most commonly seen variants is the Israeli model, which is nearly identical to later US models (but with labeling typically in Hebrew, not English, and usually sporting the later style tubes which do not require a high voltage oscillator, and instead typically use a "plug" in place of the oscillator to simply pass voltage from switch, to tube)
[[File:PVS2 ABC warning on tube.jpg|thumb|PVS2 ABC warning on tube]]

Note: A good image of a PVS2 would be nice here, and an Image of oscillator would be good to add here too. Please feel free to add them, I would appreciate that.

While very large and heavy by "modern" standards, the 6 pound passive starlight PVS 2s were considered state of the art when it came to the capabilities of U.S. troops fighting at night. This has earned it a serious reputation, and leads to its commonplace depiction in media.

These scopes first entered service at the height of the Vietnam War, and despite their cumbersome size and weight, they did prove its use among Soldiers and Marines in their patrol bases. It was generally too heavy to carry out on many patrols, but as a rifle equipped with one on a post at night where mobility wasn’t an issue, it could be a force multiplier, especially for repelling attacks at night.

These do not feature any IR emitter, and do not emit any light of their own, relying on incoming light. As they emit no light of any kind (IR/UV/etc) they are not detectable, however this also means that they are of limited use when there is no ambient light, which is why they are usually termed "starlight" scopes. Clear nights with star or moon light are optimal, while a cloudy night with no moon far from a city can render them ineffective.

The AN/PVS-2 was intended as a rifle scope, and has a standard mount on the bottom for attaching to rails, Most commonly the m14 Rifle (side of the receiver mount), the m16 (via the carry handle), and on the 50 caliber M2, via a large receiver wrap around mount. Typical construction is a cast aluminum body, with most other components, including battery cap (to the rear, above the ocular) and oscillator cap (on top, towards the objective) being machined aluminum.
[[File:PVS-2 Mount.jpg|thumb|PVS-2 Mount, showing zeroing knobs]]

Some of these scopes will feature an additional green ring with piece of glass, that fits over the ocular lens, between it and the eyecup. Allegedly, this is a piece of leaded glass, added due to alleged radiation being emitted by the scopes ocular lens (The ocular lens of the device is thoriated.), with troops being told the green ring addition was leaded glass to prevent the user from being irradiated. As of writing this, no primary material showing this has been made available showing what this green ring lens does, but the rumor is commonly spoken about.
[[File:20250701 212558.jpg|thumb|PVS-2 Green ocular lens ring]]

This scope was in service for years, and the data label on the side of the scope gives information regarding the version. Israeli versions will have Hebrew for On/Off engraved into the housing.

[[File:PVS-2 Green ocular ring.jpg|thumb]]

=== Basic use: ===
Most models feature a simple on/off lever-style switch on the top left side of the device, some have "wings" to prevent the switch from being inadvertently toggled.
[[File:PVS-2 Power switch.jpg|thumb|PVS-2 Power switch and protective "wings"]]
For daylight use, an IR filter is Used, it does not feature a pinhole, and is instead a darkened lens.

The rubber eye shield has an internal "flapper" closure that prevents light from escaping the back of the scope, preventing light from spilling out across the user. Press your face to the rubber eyecup, and continue to press, keeping the eyecup compressed, to see through. When you pull back, the flapper will close. This eye shield is nearly identical to the one later used on the PVS-4, with the color being changed from grey to black for the PVS-4.

For the objective focus, simply grab the objective lens, and rotate the entire lens assembly. be careful, as rotating it too far, will unscrew the objective lens, though this requires a significant amount of rotating, the objective has significant threading, and its unlikely this will be done by accident.

Focus on the ocular is much like other devices, with a rotating diopter ring.

Tube models(all are 25mm, 3 stage, generation 1 intensifiers with built in reticle, engraved into the rear output of the tube)

[[File:PVS2 MX-8501A-UV.jpg|alt=PVS2 MX-8501A/UV|thumb|PVS2 MX-8501A/UV]]MX-8501A/UV: Features ABC (automatic brightness Control, prominently noted on the side of the tube in white text). Boot is typically black in color. This Style tube will also have no silver pin on the positive power terminal, and will instead feature a hole, where the pass through plug "ABC adapter"

8586/3: high voltage oscillator required, features silver pin for the oscillator to plug into. Tube is typically white in color. Because the oscillator is external, it will not have the internal oscillator present like on the 8501
[[File:PVS2 8586-3 Intensifer Tube.jpg|alt=PVS-2 8586/3 Intensifier Tube, showing the silver pin the oscillator is inserted onto.|thumb|PVS-2 8586/3 Intensifier Tube, showing the silver pin the oscillator is inserted onto. ]]

[[File:PVS2 bare reticle.jpg|thumb]]

Both tubes have significant edge warping due to the cascade tube setup. Both tubes feature the standard engraved fixed position reticle (non-illuminated). Zeroing is achieved by moving the whole scope on its mount, which features adjustment wheels like on most modern optics, but instead of the reticle moving during adjustment, the entire scope moves instead.

[[File:PVS-2 info from FM20-60 (battlefield illumination).png|alt=PVS-2 info from FM20-60 (battlefield illumination)|thumb|PVS-2 info from FM20-60 (battlefield illumination)]]

PVS2 basic specs:

4x optical magnification

Battery is 6.5 volts, BA1100/U, many have been replaced with 4 AA batteries, or 2 CR123's.

Diopter adjustments from +4 to -4

Tube: MX-8501A/UV (no high voltage oscillator) or 8586/3 (high voltage oscillator required)

Weight is approximately 6 pounds (depending on mount installed)

=== IWS (Weapon-Sight, Image Intensified) ===
The IWS is the British analogue to the US AN/PVS2. It uses a different objective lens and could be mounted to a variety of weapons, including the L1A1 SLR and Enfield L42A1. Later models made use of the more advanced [[P8079HP]] tube.

== 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://m.youtube.com/watch?v=c0g8Dok5RQI}}

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

File:PVS-2 info from FM20-60 (battlefield illumination).png

2025-07-06T18:00:01Z

Chainsawjesus:

PVS-2 info from FM20-60 (battlefield illumination)

AN/PVS-2

2025-07-02T04:04:31Z

Chainsawjesus: added more photos

{{Stub}}

== Introduction: ==
The U.S. Army AN/PVS-2 is a first generation night vision device, first developed during the Vietnam war era, which quickly went through several different revisions. All revision rely on a Three stage cascade tube, generation 1, with a fiber optic output containing the engraved reticle, which is non-illuminated. One of the most commonly seen variants is the Israeli model, which is nearly identical to later US models (but with labeling typically in Hebrew, not English, and usually sporting the later style tubes which do not require a high voltage oscillator, and instead typically use a "plug" in place of the oscillator to simply pass voltage from switch, to tube)
[[File:PVS2 ABC warning on tube.jpg|thumb|PVS2 ABC warning on tube]]

Note: A good image of a PVS2 would be nice here, and an Image of oscillator would be good to add here too. Please feel free to add them, I would appreciate that.

While very large and heavy by "modern" standards, the 6 pound passive starlight PVS 2s were considered state of the art when it came to the capabilities of U.S. troops fighting at night. This has earned it a serious reputation, and leads to its commonplace depiction in media.

These scopes first entered service at the height of the Vietnam War, and despite their cumbersome size and weight, they did prove its use among Soldiers and Marines in their patrol bases. It was generally too heavy to carry out on many patrols, but as a rifle equipped with one on a post at night where mobility wasn’t an issue, it could be a force multiplier, especially for repelling attacks at night.

These do not feature any IR emitter, and do not emit any light of their own, relying on incoming light. As they emit no light of any kind (IR/UV/etc) they are not detectable, however this also means that they are of limited use when there is no ambient light, which is why they are usually termed "starlight" scopes. Clear nights with star or moon light are optimal, while a cloudy night with no moon far from a city can render them ineffective.

The AN/PVS-2 was intended as a rifle scope, and has a standard mount on the bottom for attaching to rails, Most commonly the m14 Rifle (side of the receiver mount), the m16 (via the carry handle), and on the 50 caliber M2, via a large receiver wrap around mount. Typical construction is a cast aluminum body, with most other components, including battery cap (to the rear, above the ocular) and oscillator cap (on top, towards the objective) being machined aluminum.
[[File:PVS-2 Mount.jpg|thumb|PVS-2 Mount, showing zeroing knobs]]

Some of these scopes will feature an additional green ring with piece of glass, that fits over the ocular lens, between it and the eyecup. Allegedly, this is a piece of leaded glass, added due to alleged radiation being emitted by the scopes ocular lens (The ocular lens of the device is thoriated.), with troops being told the green ring addition was leaded glass to prevent the user from being irradiated. As of writing this, no primary material showing this has been made available showing what this green ring lens does, but the rumor is commonly spoken about.
[[File:20250701 212558.jpg|thumb|PVS-2 Green ocular lens ring]]

This scope was in service for years, and the data label on the side of the scope gives information regarding the version. Israeli versions will have Hebrew for On/Off engraved into the housing.

[[File:PVS-2 Green ocular ring.jpg|thumb]]

=== Basic use: ===
Most models feature a simple on/off lever-style switch on the top left side of the device, some have "wings" to prevent the switch from being inadvertently toggled.
[[File:PVS-2 Power switch.jpg|thumb|PVS-2 Power switch and protective "wings"]]
For daylight use, an IR filter is Used, it does not feature a pinhole, and is instead a darkened lens.

The rubber eye shield has an internal "flapper" closure that prevents light from escaping the back of the scope, preventing light from spilling out across the user. Press your face to the rubber eyecup, and continue to press, keeping the eyecup compressed, to see through. When you pull back, the flapper will close. This eye shield is nearly identical to the one later used on the PVS-4, with the color being changed from grey to black for the PVS-4.

For the objective focus, simply grab the objective lens, and rotate the entire lens assembly. be careful, as rotating it too far, will unscrew the objective lens, though this requires a significant amount of rotating, the objective has significant threading, and its unlikely this will be done by accident.

Focus on the ocular is much like other devices, with a rotating diopter ring.

Tube models(all are 25mm, 3 stage, generation 1 intensifiers with built in reticle, engraved into the rear output of the tube)

MX-8501A/UV: Features ABC (automatic brightness Control, prominently noted on the side of the tube in white text). Boot is typically black in color. This Style tube will also have no silver pin on the positive power terminal, and will instead feature a hole, where the pass through plug "ABC adapter"
[[File:PVS2 MX-8501A-UV.jpg|alt=PVS2 MX-8501A/UV|thumb|PVS2 MX-8501A/UV]]

8586/3: high voltage oscillator required, features silver pin for the oscillator to plug into. Tube is typically white in color. Because the oscillator is external, it will not have the internal oscillator present like on the 8501
[[File:PVS2 8586-3 Intensifer Tube.jpg|alt=PVS-2 8586/3 Intensifier Tube, showing the silver pin the oscillator is inserted onto.|thumb|PVS-2 8586/3 Intensifier Tube, showing the silver pin the oscillator is inserted onto. ]]

[[File:PVS2 bare reticle.jpg|thumb]]

Both tubes have significant edge warping due to the cascade tube setup. Both tubes feature the standard engraved fixed position reticle (non-illuminated). Zeroing is achieved by moving the whole scope on its mount, which features adjustment wheels like on most modern optics, but instead of the reticle moving during adjustment, the entire scope moves instead.

PVS2 basic specs:

4x optical magnification

Battery is 6.5 volts, BA1100/U, many have been replaced with 4 AA batteries, or 2 CR123's.

Diopter adjustments from +4 to -4

Tube: MX-8501A/UV (no high voltage oscillator) or 8586/3 (high voltage oscillator required)

Weight is approximately 6 pounds (depending on mount installed)

=== IWS (Weapon-Sight, Image Intensified) ===
The IWS is the British analogue to the US AN/PVS2. It uses a different objective lens and could be mounted to a variety of weapons, including the L1A1 SLR and Enfield L42A1. Later models made use of the more advanced [[P8079HP]] tube.

== 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://m.youtube.com/watch?v=c0g8Dok5RQI}}

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

File:PVS-2 Mount.jpg

2025-07-02T04:03:52Z

Chainsawjesus:

PVS-2 Mount zeroing knobs

File:PVS-2 Power switch.jpg

2025-07-02T03:59:17Z

Chainsawjesus:

PVS-2 Power switch and protective "wings"

File:PVS2 ABC warning on tube.jpg

2025-07-02T03:54:03Z

Chainsawjesus:

PVS2 ABC warning on tube

AN/PVS-2

2025-07-02T03:43:36Z

Chainsawjesus: Added multiple photos, made small changes, still more to come.

{{Stub}}

The U.S. Army AN/PVS-2 is a first generation night vision device, first developed during the Vietnam war era, which quickly went through several different revisions. One of the most commonly seen variants is the Israeli model, which is nearly identical to later US models (but with labeling typically in Hebrew, not English, and usually sporting the later style tubes which do not require a high voltage oscillator, and instead typically use a "plug" in place of the oscillator to simply pass voltage from switch, to tube)

INSERT IMAGE OF OSCILLATOR HERE

While very large and heavy by "modern" standards, the 6 pound passive starlight PVS 2s were considered state of the art when it came to the capabilities of U.S. troops fighting at night. This has earned it a serious reputation, and leads to its commonplace depiction in media.

These scopes first entered service at the height of the Vietnam War, and despite their cumbersome size and weight, they did prove its use among Soldiers and Marines in their patrol bases. It was generally too heavy to carry out on many patrols, but as a rifle equipped with one on a post at night where mobility wasn’t an issue, it could be a force multiplier, especially for repelling attacks at night.

These do not feature any IR emitter, and do not emit any light of their own, relying on incoming light. As they emit no light of any kind (IR/UV/etc) they are not detectable, however this also means that they are of limited use when there is no ambient light, which is why they are usually termed "starlight" scopes. Clear nights with star or moon light are optimal, while a cloudy night with no moon far from a city can render them ineffective.

The AN/PVS-2 was intended as a rifle scope, and has a standard mount on the bottom for attaching to rails, Most commonly the m14 Rifle (side of the receiver mount), the m16 (via the carry handle), and on the 50 caliber M2, via a large receiver wrap around mount. Typical construction is a cast aluminum body, with most other components, including battery cap (to the rear, above the ocular) and oscillator cap (on top, towards the objective) being machined aluminum.

INSERT MOUNT IMAGE HERE

Some of these scopes will feature an additional green ring with piece of glass, that fits over the ocular lens, between it and the eyecup. Allegedly, this is a piece of leaded glass, added due to alleged radiation being emitted by the scopes ocular lens (The ocular lens of the device is thoriated.), with troops being told the green ring addition was leaded glass to prevent the user from being irradiated. As of writing this, no primary material showing this has been made available showing what this green ring lens does, but the rumor is commonly spoken about.
[[File:20250701 212558.jpg|thumb|PVS-2 Green ocular lens ring]]

This scope was in service for years, and the data label on the side of the scope gives information regarding the version. Israeli versions will have Hebrew for On/Off engraved into the housing.

[[File:PVS-2 Green ocular ring.jpg|thumb]]

=== Basic use: ===
Most models feature a simple on/off lever-style switch on the top left side of the device, some have "wings" to prevent the switch from being inadvertently toggled.

INSERT IMAGE OF WINGS HERE

For daylight use, an IR filter is Used, it does not feature a pinhole, and is instead a darkened lens.

The rubber eye shield has an internal "flapper" closure that prevents light from escaping the back of the scope, preventing light from spilling out across the user. Press your face to the rubber eyecup, and continue to press, keeping the eyecup compressed, to see through. When you pull back, the flapper will close. This eye shield is nearly identical to the one later used on the PVS-4, with the color being changed from grey to black for the PVS-4.

For the objective focus, simply grab the objective lens, and rotate the entire lens assembly. be careful, as rotating it too far, will unscrew the objective lens, though this requires a significant amount of rotating, the objective has significant threading, and its unlikely this will be done by accident.

Focus on the ocular is much like other devices, with a rotating diopter ring.

Tube models(all are 25mm, 3 stage, generation 1 intensifiers with built in reticle, engraved into the rear output of the tube)

MX-8501A/UV: Features ABC (automatic brightness Control, prominently noted on the side of the tube in white text). Boot is typically black in color. This Style tube will also have no silver pin on the positive power terminal, and will instead feature a hole, where the pass through plug "ABC adapter"
[[File:PVS2 MX-8501A-UV.jpg|alt=PVS2 MX-8501A/UV|thumb|PVS2 MX-8501A/UV]]

8586/3: high voltage oscillator required, features silver pin for the oscillator to plug into. Tube is typically white in color. Because the oscillator is external, it will not have the internal oscillator present like on the 8501
[[File:PVS2 8586-3 Intensifer Tube.jpg|alt=PVS-2 8586/3 Intensifier Tube, showing the silver pin the oscillator is inserted onto.|thumb|PVS-2 8586/3 Intensifier Tube, showing the silver pin the oscillator is inserted onto. ]]

Both tubes have significant edge warping due to the cascade tube setup. Both tubes feature the standard engraved fixed position reticle (non-illuminated). Zeroing is achieved by moving the whole scope on its mount, which features adjustment wheels like on most modern optics, but instead of the reticle moving during adjustment, the entire scope moves instead.
[[File:PVS2 bare reticle.jpg|thumb]]

PVS2 basic specs:

4x optical magnification

Battery is 6.5 volts, BA1100/U, many have been replaced with 4 AA batteries, or 2 CR123's.

Diopter adjustments from +4 to -4

Tube: MX-8501A/UV (no high voltage oscillator) or 8586/3 (high voltage oscillator required)

Weight is approximately 6 pounds (depending on mount installed)

=== IWS (Weapon-Sight, Image Intensified) ===
The IWS is the British analogue to the US AN/PVS2. It uses a different objective lens and could be mounted to a variety of weapons, including the L1A1 SLR and Enfield L42A1. Later models made use of the more advanced [[P8079HP]] tube.

== 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://m.youtube.com/watch?v=c0g8Dok5RQI}}

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

File:PVS2 bare reticle.jpg

2025-07-02T03:42:47Z

Chainsawjesus:

this is the actual reticle, engraved onto the back of the fiber optic output of the tube. It is non-illuminated. You may have to zoom in to see it.

File:PVS2 8586-3 Intensifer Tube.jpg

2025-07-02T03:39:34Z

Chainsawjesus:

PVS2 8586/3 Intensifier Tube, showing silver pin that the oscillator is inserted onto.

File:PVS2 MX-8501A-UV.jpg

2025-07-02T03:37:02Z

Chainsawjesus:

PVS2 MX-8501A/UV intensifier tube

File:PVS-2 Green ocular ring.jpg

2025-07-02T03:33:47Z

Chainsawjesus:

This si the green 'Anti-radiation" ring added to many PVS-2 scopes

File:20250701 212558.jpg

2025-07-02T03:28:23Z

Chainsawjesus:

Side view of the green lens ring

AN/PVS-2

2025-07-02T02:26:14Z

Chainsawjesus: Added just....everything. I have photos to upload, will edit them in ASAP.

{{Stub}}

The U.S. Army AN/PVS-2 is a first generation night vision device, first developed during the Vietnam war era, which quickly went through several different revisions. One of the most commonly seen variants is the Israeli model, which is nearly identical to later US models (but with labeling typically in Hebrew, not English, and usually sporting the later style tubes which do not require a high voltage oscillator, and instead typically use a "plug" in place of the oscillator to simply pass voltage from switch, to tube)

INSERT IMAGE OF OSCILLATOR HERE

While very large and heavy by "modern" standards, the 6 pound passive starlight PVS 2s were considered state of the art when it came to the capabilities of U.S. troops fighting at night. This has earned it a serious reputation, and leads to its commonplace depiction in media.

These scopes first entered service at the height of the Vietnam War, and despite their cumbersome size and weight, they did prove its use among Soldiers and Marines in their patrol bases. It was generally too heavy to carry out on many patrols, but as a rifle equipped with one on a post at night where mobility wasn’t an issue, it could be a force multiplier, especially for repelling attacks at night.

These do not feature any IR emitter, and do not emit any light of their own, relying on incoming light. As they emit no light of any kind (IR/UV/etc) they are not detectable, however this also means that they are of limited use when there is no ambient light, which is why they are usually termed "starlight" scopes. Clear nights with star or moon light are optimal, while a cloudy night with no moon far from a city can render them ineffective.

The AN/PVS-2 was intended as a rifle scope, and has a standard mount on the bottom for attaching to rails, Most commonly the m14 Rifle (side of the receiver mount), the m16 (via the carry handle), and on the 50 caliber M2, via a large receiver wrap around mount. Typical construction is a cast aluminum body, with most other components, including battery cap (to the rear, above the ocular) and oscillator cap (on top, towards the objective) being machined aluminum.

INSERT MOUNT IMAGE HERE

Some of these scopes will feature an additional green ring with piece of glass, that fits over the ocular lens, between it and the eyecup. Allegedly, this is a piece of leaded glass, added due to alleged radiation being emitted by the scopes ocular lens (The ocular lens of the device is thoriated.), with troops being told the green ring addition was leaded glass to prevent the user from being irradiated. As of writing this, no primary material showing this has been made available showing what this green ring lens does, but the rumor is commonly spoken about.

INSERT GREEN RING PHOTOS HERE

This scope was in service for years, and the data label on the side of the scope gives information regarding the version. Israeli versions will have Hebrew for On/Off engraved into the housing.

Basic use: Most models feature a simple on/off lever-style switch on the top left side of the device, some have "wings" to prevent the switch from being inadvertently toggled.

INSERT IMAGE OF WINGS HERE

For daylight use, an IR filter is Used, it does not feature a pinhole, and is instead a darkened lens.

The rubber eye shield has an internal "flapper" closure that prevents light from escaping the back of the scope, preventing light from spilling out across the user. Press your face to the rubber eyecup, and continue to press, keeping the eyecup compressed, to see through. When you pull back, the flapper will close. This eye shield is nearly identical to the one later used on the PVS-4, with the color being changed from grey to black for the PVS-4.

For the objective focus, simply grab the objective lens, and rotate the entire lens assembly. be careful, as rotating it too far, will unscrew the objective lens, though this requires a significant amount of rotating, the objective has significant threading, and its unlikely this will be done by accident.

Focus on the ocular is much like other devices, with a rotating diopter ring.

Tube models(all are 25mm, 3 stage, generation 1 intensifiers with built in reticle, engraved into the rear output of the tube)

MX-8501A/UV: Features ABC (automatic brightness Control, prominently noted on the side of the tube in white text). Boot is typically black in color. This Style tube will also have no silver pin on the positive power terminal, and will instead feature a hole, where the pass through plug "ABC adapter"

8586/3: high voltage oscillator required, features silver pin for the oscillator to plug into. Tube is typically white in color. Because the oscillator is external, it will not have the internal oscillator present like on the 8501

Both tubes have significant edge warping sue tot he cascade tube setup. the engraved fixed position reticle. Zeroing is achieved by moving the whole scope on its mount, which features adjustment wheels like on most modern optics, but instead of the reticle moving during adjustment, the entire scope moves instead.

INSERT IMAGE OF MOUNT AND RETICLE HERE

PVS2 basic specs:

4x optical magnification

Battery is 6.5 volts, BA1100/U, many have been replaced with 4 AA batteries, or 2 CR123's.

Diopter adjustments from +4 to -4

Tube: MX-8501A/UV (no high voltage oscillator) or 8586/3 (high voltage oscillator required)

Weight is approximately 6 pounds (depending on mount installed)

=== IWS (Weapon-Sight, Image Intensified) ===
The IWS is the British analogue to the US AN/PVS2. It uses a different objective lens and could be mounted to a variety of weapons, including the L1A1 SLR and Enfield L42A1. Later models made use of the more advanced [[P8079HP]] tube.

== 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://m.youtube.com/watch?v=c0g8Dok5RQI}}

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