CV6099 Infrared image converter
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This device measures 58x35mm overall. |
CV6099 image converter tube. These are sensitive to infrared light out to a wavelength of about 1 micron but the luminous gain of systems using them is approximately 1, so a source of infrared light would be needed if they were being used at night. They were developed in the late 1950s and are essentially an improved version of image converter tubes used as far back as 1934. They were typically used throuhgout the 1960s in various pocketscopes, binoculars, tank periscopes etc., and were replaced through the 1970s and 1980s by image intensifiers using ambient light and by thermal imaging systems.
| Max peak instantaneous fluorescent screen voltage | 13kV |
| Max continuous fluorescent screen voltage | 12.5kV |
| Min fluorescent screen voltage | 8kV |
| Max photocathode current (continuous) | 0.1µA |
| Max photocathode illumination (continuous) | 10 i.r.f lux |
| Max storage temperature | 68°C |
| Characteristics (at ambient temp of 20°C with 12kV screen voltage) | |
| Peak spectral response | 8000±1000 angstroms |
| Min conversion coefficient | 0.55 cd/lm |
| Magnification at centre | 0.74 |
| Min resolution at centre of photocathode | 50 line pairs/mm |
| Min resolution off axis of photocathode | 12 line pairs/mm |
| Max background equivalent illumination | 0.025 i.f.r. lux |
| Max dark current | 0.02µA |
