North Night Vision Technology (NNVT): Difference between revisions

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[[File:NNVT NVT Pathing.png|thumb|NVT IIT Pathing]]
North Night Vision Technology Co.Ltd (NNVT) is the largest [[Has Country::China|Chinese]] manufacturer for image intensifiers and their components (PSU, MCP and FOP).
North Night Vision Technology Co. Ltd. (NNVT) is a Chinese manufacturer of image intensifier tubes.


It is believed to manufacture image intensifiers using or at least based on production lines and technology purchased from [[Photonis Technologies SAS|Photonis]].
It is believed to manufacture image intensifiers using or at least based on production lines and technology purchased from [[Photonis Technologies SAS|Photonis]] (Photonis-DEP Nederland)<ref>https://www.researching.cn/ArticlePdf/m00002/2008/45/3/41.pdf</ref>.


== Products ==
== Products ==
{{Unverified}}
{{Unverified}}NNVT produces Gen. 1 and Gen. 2 image intensifiers in [[16mm]], [[18mm]], 25mm, 20/30mm and 40mm format, with wafer inverting, non-inverting, staging and hybrid formats and [https://de.wikipedia.org/wiki/Intensified_charge-coupled_device ICCD] night vision components. They also produce UV, solar blind UV, visible and SWIR Sensors.
 
Furthermore, development for the following technologies is ongoing:
 
* MCP-PMT
* InGaAs Solid-State Low-Light Sensor
* CIS Solid-State Low Light level Sensor
 
At the core of NNVT's lineup of image intensifiers lies a single-digit iteration standing for each new production line, starting at 1, with 7 being the latest.
 
In the past, NNVT used this iteration prefixed with ''NVT'' (e.g. NVT-5, ...) as naming convention.
 
While some distributors still use this system, NNVT uses a product number system, usually consisting of two letters, four digits, followed by a suffix of up to two letters, like ''GT4864AW''. The first digit stands for the iteration. Product families, e.g. image intensifiers of the same format, replace the iteration with the letter X, and have no suffix, e.g. ''GTX864''. This system draws heavy inspiration of the product numbering system used by [[Photonis Technologies SAS|Photonis]].
 
=== Iterations ===


=== NVT-1 ===
=== NVT-1 ===
Line 17: Line 30:


=== NVT-4 ===
=== NVT-4 ===
[[File:JPNV NVT-4 Marketing Material.png|thumb|NVT-4 Marketing Material]]
Introduced in 2006. Previously called CNT-4.
[[File:JPNV NVT-4 Spec Marketing Material.png|thumb|JPNV NVT-4 Specifications Marketing Material]]
Introduced in 2006.
{| class="wikitable"
{| class="wikitable"
|+Specifications<ref>https://www.junpinnightvision.com/product/18mm-super-gen-2-image-intensifier/</ref>
|+Specifications<ref>https://www.junpinnightvision.com/product/18mm-super-gen-2-image-intensifier/</ref>
Line 54: Line 65:


=== NVT-5 ===
=== NVT-5 ===
[[File:JPNV NVT-5 Marketing Material.jpg|thumb|JPNV NVT-5 Marketing Material]]
[[File:JPNV NVT-5 Spec Marketing Material.jpg|thumb|JPNV NVT-5 Specifications Marketing Material]]
Introduced in 2018. Only the military grade version features autogating.
Introduced in 2018. Only the military grade version features autogating.
{| class="wikitable"
{| class="wikitable"
Line 91: Line 100:


=== NVT-6 ===
=== NVT-6 ===
[[File:JPNV NVT-6 Marketing Material.jpg|thumb|JPNV NVT-6 Marketing Material]]
Introduced in 2018. All tubes feature autogating. Previously called DNT-6.
[[File:JPNV NVT-6 Specifications Marketing Material.jpg|thumb|JPNV NVT-6 Specifications Marketing Material]]
 
Introduced in 2018. Both the commercial and military grade features autogating.
NVT-6 adopts a new MCP processing technology and new photocathode process, leading to higher resolution and claiming better reliability.
{| class="wikitable"
{| class="wikitable"
|+Specifications<ref>https://www.junpinnightvision.com/wp-content/uploads/2022/12/NVT-6-Military-Grade.pdf</ref><ref>https://www.junpinnightvision.com/wp-content/uploads/2022/12/NVT-6-Commercial-Grade.pdf</ref>
|+Specifications<ref>https://www.junpinnightvision.com/wp-content/uploads/2022/12/NVT-6-Military-Grade.pdf</ref><ref>https://www.junpinnightvision.com/wp-content/uploads/2022/12/NVT-6-Commercial-Grade.pdf</ref>
Line 140: Line 149:


=== NVT-7 ===
=== NVT-7 ===
[[File:JPNV NVT-7 Marketing Material.png|thumb|JPNV NVT-7 Marketing Material]]
Introduced in 2020, NVT-7 is the latest iteration of NNVT's image intensifiers.
[[File:JPNV NVT-7 Specifications Marketing Material.jpg|thumb|JPNV NVT-7 Specifications Marketing Material]]
 
Introduced in 2020. Both the commercial and military grade features autogating.
A newly developed photocathode process yields various improvements like increased sensitivity, an extended spectral range beyond 1000nm and smaller halo.
 
16mm NVT-7 can be produced with high-frequency autogating and bright spot protection.
{| class="wikitable"
{| class="wikitable"
|+Specifications<ref>https://www.junpinnightvision.com/wp-content/uploads/2022/12/NVT-7-Military-Grade.pdf</ref>
|+Specifications<ref>https://www.junpinnightvision.com/wp-content/uploads/2022/12/NVT-7-Military-Grade.pdf</ref>
Line 151: Line 162:
|[[Resolution]]
|[[Resolution]]
|lp/mm
|lp/mm
|71+
|68+
|-
|-
|High Light Resolution
|High Light Resolution
Line 187: Line 198:
|P43/P45
|P43/P45
|}
|}
== Files ==
<gallery widths=300px heights=400px>
File:NNVT Image Intensifiers.pdf|page=1
File:NNVT Image Intensifiers.pdf|page=2
File:NNVT Image Intensifiers.pdf|page=3
File:NNVT Image Intensifiers.pdf|page=4
File:NNVT Image Intensifiers.pdf|page=5
</gallery>


== References ==
== References ==
Line 192: Line 212:
[[Category:Manufacturers]]
[[Category:Manufacturers]]
[[Category:Image Intensifier Manufacturers]]
[[Category:Image Intensifier Manufacturers]]
__FORCETOC__
__FORCETOC__

Latest revision as of 10:19, 3 April 2024

North Night Vision Technology Co.Ltd (NNVT) is the largest Chinese manufacturer for image intensifiers and their components (PSU, MCP and FOP).

It is believed to manufacture image intensifiers using or at least based on production lines and technology purchased from Photonis (Photonis-DEP Nederland)[1].

Products[edit | edit source]

⚠ This section contains unverified information. You can help by adding references to it.

NNVT produces Gen. 1 and Gen. 2 image intensifiers in 16mm, 18mm, 25mm, 20/30mm and 40mm format, with wafer inverting, non-inverting, staging and hybrid formats and ICCD night vision components. They also produce UV, solar blind UV, visible and SWIR Sensors.

Furthermore, development for the following technologies is ongoing:

  • MCP-PMT
  • InGaAs Solid-State Low-Light Sensor
  • CIS Solid-State Low Light level Sensor

At the core of NNVT's lineup of image intensifiers lies a single-digit iteration standing for each new production line, starting at 1, with 7 being the latest.

In the past, NNVT used this iteration prefixed with NVT (e.g. NVT-5, ...) as naming convention.

While some distributors still use this system, NNVT uses a product number system, usually consisting of two letters, four digits, followed by a suffix of up to two letters, like GT4864AW. The first digit stands for the iteration. Product families, e.g. image intensifiers of the same format, replace the iteration with the letter X, and have no suffix, e.g. GTX864. This system draws heavy inspiration of the product numbering system used by Photonis.

Iterations[edit | edit source]

NVT-1[edit | edit source]

Gen. 1 image intensifiers introduced in the 1980s.

NVT-2[edit | edit source]

NNVTs first Gen. 2 image intensifiers introduced in the 1990s.

NVT-3[edit | edit source]

Introduced in 2006.

NVT-4[edit | edit source]

Introduced in 2006. Previously called CNT-4.

Specifications[2]
Performance parameters Units of measurement Values
Resolution lp / mm 57+
Photocathode Sensitivity 28560 K, uA/lm 600+
800nm, mA/W 50+
850nm, mA/W 40+
Signal to Noise Ratio 22+
Luminous Gain @2x10-5 lx, cd/m2/lx 8K-12K
Phosphor P22/P43/P45

NVT-5[edit | edit source]

Introduced in 2018. Only the military grade version features autogating.

Specifications[3][4]
Performance parameters Units of measurement Values
Resolution lp/mm 64+
Photocathode Sensitivity 28560 K, uA/lm 700-900
800nm, mA/W 65+
850nm, mA/W 50+
Signal to Noise Ratio 25+
Luminous Gain @2x10-5 lx, cd/m2/lx 12K-25K
Phosphor P22/P43/P45

NVT-6[edit | edit source]

Introduced in 2018. All tubes feature autogating. Previously called DNT-6.

NVT-6 adopts a new MCP processing technology and new photocathode process, leading to higher resolution and claiming better reliability.

Specifications[5][6]
Performance parameters Units of measurement Values
Resolution lp/mm 64+
High Light Resolution @ 200lx, lp/mm 48+
Photocathode Sensitivity 28560 K, uA/lm 850-1000
800nm, mA/W 80+
850nm, mA/W 60+
Signal to Noise Ratio 28+
EBI μlx 0.25-
Luminous Gain @2x10-5 lx, cd/m2/lx 12K+
Halo mm 0.7-1.0
Phosphor P22/P43/P45

NVT-7[edit | edit source]

Introduced in 2020, NVT-7 is the latest iteration of NNVT's image intensifiers.

A newly developed photocathode process yields various improvements like increased sensitivity, an extended spectral range beyond 1000nm and smaller halo.

16mm NVT-7 can be produced with high-frequency autogating and bright spot protection.

Specifications[7]
Performance parameters Units of measurement Values
Resolution lp/mm 68+
High Light Resolution @ 200lx, lp/mm 48+
Photocathode Sensitivity 28560 K, uA/lm 1000+
800nm, mA/W ?
850nm, mA/W ?
Signal to Noise Ratio 28+
EBI μlx 0.25-
Luminous Gain @2x10-5 lx, d/m2/lx 12K+
Halo mm 0.7-
Phosphor P43/P45

Files[edit | edit source]

References[edit | edit source]

  1. ↑ https://www.researching.cn/ArticlePdf/m00002/2008/45/3/41.pdf
  2. ↑ https://www.junpinnightvision.com/product/18mm-super-gen-2-image-intensifier/
  3. ↑ https://www.junpinnightvision.com/product/nvt-5cg-commercial-grade-image-intensifier-tube-pvs-14-pvs-31-night-vision-tube/
  4. ↑ https://www.junpinnightvision.com/wp-content/uploads/2022/12/NVT-5-Military-Grade.pdf
  5. ↑ https://www.junpinnightvision.com/wp-content/uploads/2022/12/NVT-6-Military-Grade.pdf
  6. ↑ https://www.junpinnightvision.com/wp-content/uploads/2022/12/NVT-6-Commercial-Grade.pdf
  7. ↑ https://www.junpinnightvision.com/wp-content/uploads/2022/12/NVT-7-Military-Grade.pdf


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