Apparatus for correcting unevenness of light quantity in an opti

Details Apparatus for correcting unevenness of light quantity in an opti Apparatus for correcting unevenness of light quantity in an opti

1986-01-29

1988-02-16

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250578, H01J 4014

Patent

active

047257296

ABSTRACT:
A picture reproduction apparatus for recording reproduced picture images of an original picture in which picture information on the original picture is projected onto a photoelectric converting element(s) such as a CCD line sensor(s) etc. through a focusing optical system, and according to an output signal therefrom unevenness of a light quantity of a light flux projected to the photoelectric converting element(s) is corrected to obtain a reproduction picture of uniform quality.

REFERENCES:
patent: 4415934 (1983-11-01), Konishi
patent: 4495422 (1985-01-01), Wiggins
patent: 4547663 (1985-10-01), Kitagishi et al.

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