Device for compensating for fluctuations in a light source...

Details Device for compensating for fluctuations in a light source... Device for compensating for fluctuations in a light source...

2006-09-12

2006-09-12

Allen, Stephone B. (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

C313S531000, C327S514000, C250S2140LS

Reexamination Certificate

active

07105792

ABSTRACT:
The invention relates to a device for compensating for fluctuations in the light which is emitted by a light source and propogates along a light path. The device has a first light-sensitive sensor. The sensor detects the intensity of the light at a first location along the light path in a spatially resolved manner and generates electrical image signals. Furthermore, a second light-sensitive sensor is provided, which detects the intensity of the light at a second location along the light path and generates electrical output signals.

REFERENCES:
patent: 4254331 (1981-03-01), Dorman et al.
patent: 5546041 (1996-08-01), Szajda

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