Radiant energy – Photocells; circuits and apparatus – Photocell controls its own optical systems
Reexamination Certificate
2005-05-31
2005-05-31
Allen, Stephone B. (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Photocell controls its own optical systems
C250S203100, C356S152100
Reexamination Certificate
active
06900425
ABSTRACT:
A system for lighting an object has a radiation source, a first guidance device optically connected to the object, a second guidance device and a first subtracting amplifier in communication with the first guidance device. The first subtracting amplifier has inputs and at least one output. A second subtracting amplifier is in communication with the first and second guidance devices. A commutation unit is in communication with the first and second guidance devices and the first and second subtracting amplifiers. First, second, third and fourth actuators are in communication with the commutation unit. A first mirror is in communication with and controlled by the first and second actuators and a second mirror is in communication with and controlled by the third and fourth actuators. The first and said second mirrors are controlled by the actuators so that the system can light an object by reflecting the radiation source.
REFERENCES:
patent: 3744740 (1973-07-01), Godin et al.
patent: 4158840 (1979-06-01), Schwab
patent: 4477814 (1984-10-01), Brumbaugh et al.
patent: 4780719 (1988-10-01), Frei et al.
patent: 5134409 (1992-07-01), De Groot
patent: 5216236 (1993-06-01), Blais
patent: 5265034 (1993-11-01), Breckenridge et al.
patent: 1295125 (1972-11-01), None
patent: 2101724 (1998-01-01), None
Aliev Abdulla Sirazhutdinovich
Amirov Said Dzhaparovich
Allen Stephone B.
Collard & Roe P.C.
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