Radiant energy – Photocells; circuits and apparatus – Photocell controls its own optical systems
Reexamination Certificate
2006-09-12
2006-09-12
Allen, Stephone B. (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Photocell controls its own optical systems
C250S206100, C250S206200
Reexamination Certificate
active
07105791
ABSTRACT:
A system for using an image of the Sun for detecting objects traveling through Earth's atmosphere is disclosed. The system includes a receiver for collecting incident sunlight (solar energy) and a light sensitive device that produces a signal in response to exposure to light. A signal processor that is coupled to the light sensitive device, the signal processor sensing the collected incident sunlight and is programmed for providing an output signal corresponding to provide a detection signal in response to a shadow that moves across the light sensitive device.
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Allen Stephone B.
Crabtree Edwin H.
Monbleau Davienne
Pizarro Ramon L.
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