Light pick-up device

Details Light pick-up device Light pick-up device

G - Physics

03

B

314/28, 88/96, 9

G03B 27/50 (2006.01) H04N 1/028 (2006.01) H04N 1/48 (2006.01)

Patent

CA 1167310

ABSTRACT A light pick-up device for transparency and/or opaque scanning in a drum or flat bed scanning device consisting of a hollow body which has a light entry opening and at least one opening forming the light pick-up surface. That part of the inside surface which is opposite the light pick-up surface is a diffusedly reflecting reflector and the remaining part may be a mirror or also a diffusedly reflecting reflector. The light modulated from the master is collected in the light pick-up device, is reflected into the light pick-up surface, and is conducted from there to an opto-electronic transducer means which generates the image signal. Since the device suppresses the disruptive influence of scratches and shadow edges in the master, a high efficiency and high uniformity of the scanning are achieved with the light pick-up device.

402446

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