Gen. III (HP1850‑I B/W) Ø37mm
Category: 37 mm tubes
Tube as a BLACK/WHITE
model with image inversion
BLACK/WHITE is the alternative black/white night vision technology. Several studies have shown that observed happenings at night are looking more natural by using the black/white technology, instead the usual green one. The black/white technology is invented for those, who value a less eye stressing night observation. This black/white technology is more precise and clearer by transmitting information such as contrast, shapes and shadows.
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Features:
- Automatic brightness control (ABC)
- Bright source protection (BSP)
General technical data according to specification:
| Type name | Gen. III (HP1850‑I B/W) as a BLACK/WHITE model |
| Tube diameter | 37mm |
| Phosphor | P45 (white) |
| Input window | Glass |
| Output window | Inverting fibre-optic |
| Type of contacts | Strip contacts |
| Specification | On request |
| Drawing | On request |
| Parameters | minimum | typical | maximum | unit |
| FOM (performance value of a tube) | 1836 | |||
| Limiting resolution | 68 | lp/mm | ||
| S/N (signal to noise ratio) at 108μlx | 27 | |||
| Cathode sensitivity at 2850K | 2000 | μA/lm | ||
| Luminance, gain at 2×10-6 fc | 40000 | 70000 | fl/fc | |
| MTTF (operational life) | 10000 | hours | ||
| IR wavelength operating range | 550 | 900 | nm | |
| Radiant sensitivity at 830nm | 210 | mA/W | ||
| Image inversion | 178° | 180° | 181° | |
| MTF at 2,5 lp/mm | % | |||
| MTF at 7,5 lp/mm | % | |||
| MTF at 15 lp/mm | % | |||
| MTF at 25 lp/mm | % | |||
| MTF at 30 lp/mm | % | |||
| Useful cathode diameter | 17,5 | mm | ||
| Output uniformity at 2850K | ||||
| HALO size (illumination spot 0,2mm) | 1,0 | mm | ||
| Maximum output brightness | 2 | 17 | cd/m2 | |
| E.B.I. (equivalent background illumination) | μlx | |||
| Shock resistance | 500 | G | ||
| Weight | 85 | gram |
Maximum number of spots according to specification:
| Spots diameter in micrometers | zone 1 (d=5,6mm) |
zone 2 (d=5,6mm-14,7mm) |
zone 3 (d=14,7mm-17,5mm) |
| > 380 | 0 | 0 | 0 |
| 300 − 380 | 0 | 0 | 0 |
| 230 − 300 | 0 | 0 | 0 |
| 150 − 230 | 0 | 1 | 1 |
| 75 − 150 | 0 | 2 | 2 |
| 75 | minimal | minimal | minimal |
All regular articles have a 14 days right of return and 5 years guarantee, with a service address in the Germany! Except Commercial Grade models, these devices are covered by the general 2 years guarantee.
