Auto-Light Control By Pulse Width Modulation
Lawrence H. Gilligan, David W. Gerdt · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1986
This paper describes the implementation of a system for automatic light level control of an intensified solid-state television camera, by means of varying the gate pulse width of a gated second generation image intensifier, with pulse repetition synchronized to the television camera frame time (or to vertical sync).