发明名称 Light pick-up device
摘要 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.
申请公布号 US4453180(A) 申请公布日期 1984.06.05
申请号 US19820375005 申请日期 1982.05.05
申请人 DR. ING. RUDOLF HELL GMBH 发明人 JUERGENSEN, HEINRICH
分类号 G02B26/12;G03F3/08;H04N1/00;H04N1/028;H04N1/04;H04N1/113;H04N1/48;(IPC1-7):H04N1/46 主分类号 G02B26/12
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