MX-10160: Difference between revisions
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=== MX10160 === | === MX10160 === | ||
The original MX10160/AVS-6 specification was introduced in 1997 in the MIL-I-49428 specification. <ref>http://everyspec.com/MIL-SPECS/MIL-SPECS-MIL-I/MIL-I-49428_53852/</ref> | The original MX10160/AVS-6 specification was introduced in 1997 in the MIL-I-49428 specification. <ref>http://everyspec.com/MIL-SPECS/MIL-SPECS-MIL-I/MIL-I-49428_53852/</ref> | ||
It consists of many specifications that 18mm image intensifier tubes have to meet as well as how those specifications should be tested. | |||
==== Key Specifications ==== | ==== Key Specifications ==== | ||
Below is an incomplete list of key specifications that the image intensifiers have to meet. | |||
* 18mm microchannel wafer | * 18mm microchannel wafer | ||
* minimum useful photocathode and [[Phosphor Screen|phosphor screen]] diameter of 17.5 mm | * minimum useful photocathode and [[Phosphor Screen|phosphor screen]] diameter of 17.5 mm | ||
* maximum weight of 85 grams | * maximum weight of 85 grams | ||
* [[Phosphor Screen|phosphor screen]] type P-20 | *[[Phosphor Screen|phosphor screen]] type P-20 | ||
* image inversion | * image inversion | ||
* resistance to shocks of at least 75 G's | * resistance to shocks of at least 75 G's | ||
* equivalent background input of 2.5 * 10<sup>-11</sup> lumens/cm<sup>2</sup> | * equivalent background input of 2.5 * 10<sup>-11</sup> lumens/cm<sup>2</sup> | ||
* maximum gain between 20.000 and 35.000 at 2 x 10<sup>-6</sup> footcandles | * maximum luminance gain | ||
* | ** between 20.000 and 35.000 at 2 x 10<sup>-6</sup> footcandles | ||
** between 3.500 and 10.500 at 2 x 10-4 footcandles | |||
* minimum [[Signal-to-Noise Ratio (SNR)|signal-to-noise ratio]] of 16.2 | * minimum [[Signal-to-Noise Ratio (SNR)|signal-to-noise ratio]] of 16.2 | ||
* minimum resolution of 36 line pairs per millimeter (lp/mm) | * minimum resolution of 36 line pairs per millimeter (lp/mm) | ||
* minimum high light resolution of 5 lp/mm (at 20 footcandles) | * minimum high light resolution of 5 lp/mm (at 20 footcandles) | ||
* modular transfer function at 8 x 10<sup>-4</sup> footcandle: | * modular transfer function at 8 x 10<sup>-4</sup> footcandle: | ||
** 83% MTF at 2.5 lp/mm | ** 83% MTF at 2.5 lp/mm | ||
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* reverse polarity protection | * reverse polarity protection | ||
* maximum allowable dark & bright spots | * maximum allowable dark & bright spots | ||
* minimum mean time to failure of minimum 7500 hours (minimum 1500 hours under <i>accelerated</i> conditions) | * minimum mean time to failure of minimum 7500 hours (minimum 1500 hours under <i>accelerated</i> conditions<ref>Accelerated conditions differ only in shorter on-off cycles and more frequent temporary increases in input illumination.</ref>) | ||
Some further specifications include: | |||
* stability and uniformity of output brightness | |||
* ion barrier film quality | |||
* photocathode sensitivity | |||
* burn-in / environmental stress screening | |||
* vibration | |||
* resonance search / resonance dwell / cycling | |||
* temperature ranges / temperature cycling | |||
* compatibility with the ANVIS monocular assembly | |||
* reverse polarity protection | |||
* resistance to bright lights | |||
* allowable dark & bright spots | |||
* veil glare | |||
* image alignment | |||
* electromagnetic interference | |||
* assembly quality | |||
* chicken wire | |||
=== MX10160A === | === MX10160A === | ||
Revision as of 22:42, 22 August 2022
MX10160 is the designation for a specification for image intensifier tubes for the United States military.
The designation is often used to refer to the format of the tube specified inside of the specification, as all iterations of the specification reuse the same format to facilitate backwards compatibility.
Other names commonly used to refer to the format are Small Anvis (because it was developed for AN/AVS-6 binoculars) and 18 mm (because the built-in microchannel wafer has a diameter of 18 millimeters).
Iterations
MX10160
The original MX10160/AVS-6 specification was introduced in 1997 in the MIL-I-49428 specification. [1]
It consists of many specifications that 18mm image intensifier tubes have to meet as well as how those specifications should be tested.
Key Specifications
Below is an incomplete list of key specifications that the image intensifiers have to meet.
- 18mm microchannel wafer
- minimum useful photocathode and phosphor screen diameter of 17.5 mm
- maximum weight of 85 grams
- phosphor screen type P-20
- image inversion
- resistance to shocks of at least 75 G's
- equivalent background input of 2.5 * 10-11 lumens/cm2
- maximum luminance gain
- between 20.000 and 35.000 at 2 x 10-6 footcandles
- between 3.500 and 10.500 at 2 x 10-4 footcandles
- minimum signal-to-noise ratio of 16.2
- minimum resolution of 36 line pairs per millimeter (lp/mm)
- minimum high light resolution of 5 lp/mm (at 20 footcandles)
- modular transfer function at 8 x 10-4 footcandle:
- 83% MTF at 2.5 lp/mm
- 58% MTF at 7.5 lp/mm
- 28% MTF at 15.0 lp/mm
- 8% MTF at 25.0 lp/mm
- reverse polarity protection
- maximum allowable dark & bright spots
- minimum mean time to failure of minimum 7500 hours (minimum 1500 hours under accelerated conditions[2])
Some further specifications include:
- stability and uniformity of output brightness
- ion barrier film quality
- photocathode sensitivity
- burn-in / environmental stress screening
- vibration
- resonance search / resonance dwell / cycling
- temperature ranges / temperature cycling
- compatibility with the ANVIS monocular assembly
- reverse polarity protection
- resistance to bright lights
- allowable dark & bright spots
- veil glare
- image alignment
- electromagnetic interference
- assembly quality
- chicken wire
MX10160A
MX10160B
MX10160C
MX10160GS
MX10160WG
MX10160FG
- ↑ http://everyspec.com/MIL-SPECS/MIL-SPECS-MIL-I/MIL-I-49428_53852/
- ↑ Accelerated conditions differ only in shorter on-off cycles and more frequent temporary increases in input illumination.
