The Alpha Optics AO-21851UV is 18mm, Gen 2+, high-gain, high-photosensitivity Inverting Image Intensifier Tube encapsulated within a hard-surface insulating sleeve. This ultraviolet image intensifier has a unique photocathode, structurally related to the multialkaline S20, which has been developed to capture the ultraviolet emission from different sources from solar to coronary.
The AO-21851UV has a built-in high-voltage power supply with overload protection circuit which incorporates (ABC) automatic brightness control to provide constant output image brightness as light levels varies. The power supply also provides (BSP) bright source protection to guard the tube against exposure to high levels of light. The AO-21851UV comes in the “Slim” ANVIS format.