Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1983-02-07
1984-08-21
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
250237R, 250578, H01J 314
Patent
active
044671954
ABSTRACT:
This specification discloses an original reading apparatus for converting information such as pictures and writings on an original surface into electrical signals for reading. The apparatus comprises a carriage for moving an original in a predetermined direction, an illuminating system for illuminating a narrow line on the original perpendicular to the direction of movement of the original, a photoelectric sensor including a plurality of photoelectric elements arrayed in the direction of the illuminated line and over the width of the original, and means for reading the signals provided on each photoelectric conversion surface in the fashion of time series. In the apparatus, the illuminating system and the photoelectric sensor are made integral to form a compact head, and the head can scan the original while being in intimate contact with the original to thereby produce information signals of high resolution.
REFERENCES:
patent: 3523191 (1970-08-01), Street
patent: 3581100 (1971-05-01), Milford
patent: 3894216 (1975-07-01), Bottles
patent: 3914309 (1975-10-01), Swenson
patent: 4179621 (1979-12-01), Crean et al.
Kawamura Naoto
Matsumoto Kazuya
Canon Kabushiki Kaisha
Nelms David C.
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