Shock-resistant image intensifier

摘要

In one exemplary embodiment, a shock-resistant night vision assembly is configured to detect a high-acceleration event, for example, resulting from a round or burst of high-caliber rifle fire. Upon detecting the event, a voltage such as a photocathode voltage is forced to an inactive or protective level and held there for approximately 50 ms, giving time for mechanical excursions of the microchannel plate to settle out. Damage from physical impact and electrostatic discharge may thus be mitigated.

主权项

1. A method comprising:
providing a voltage at an active level between a photocathode and an input face of a microchannel plate; detecting a high-acceleration event; and responsive to the high-acceleration event, maintaining the voltage at a protective level for a time span selected to permit acceleration-induced perturbations of the microchannel plate to settle.