Patent ID: 7551219

Claim:
A camera, comprising: a single lens system adapted to direct a beam; a mirror adapted to receive and distribute the directed beam; a first image sensor adapted to receive a portion of the distributed beam; a second image sensor adapted to receive a portion of the distributed beam; a first iris adapted to limit an amount of the directed beam; an image intensifier adapted to intensify the limited amount of the directed beam; a second iris adapted to limit an amount of the intensified directed beam reaching at least one of the sensors; at least one first module adapted to sample an output from at least one of the sensors; at least one second module adapted to filter the sampled output; at least one third module adapted to provide a time constant to the filtered output; at least one iris driver adapted to: receive the output from the at least one third module; and drive at least one iris actuator to operate at least one of the first iris and the second iris to limit the output if the output increases to a threshold level.