Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1982-05-05
1984-06-05
Britton, Howard W.
Facsimile and static presentation processing
Static presentation processing
Attribute control
250228, 358293, 358294, H04N 146
Patent
active
044531800
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.
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Cronquist, "Hollow Reflecting Light Collector Tube", IBM Technical Disclosure Bulletin, vol. 17, No. 3, Aug. 1974, pp. 906-908.
Britton Howard W.
Dr. -Ing. Rudolf Hell GmbH
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