Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1998-12-01
2000-12-05
Ham, Seungsook
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
25022724, 385116, H01J 314, G02B 626
Patent
active
061570273
ABSTRACT:
A scanner has an optical-electric module, an incoherent fiber bundle, and a scanner head. The incoherent fiber bundle has illumination fibers and pickup fibers. The illumination fibers carry only illumination light from a light source in the O/E module toward the scanner head. The pickup fibers carry sensed light from the scanner head to a CCD array in the O/E module. The scanner head has a light guide that receives the illumination light from the illumination fibers. The light guide is in contact with the pickup fibers in an arrangement which permits the illumination light to enter the side of the illumination fibers near the end. Illumination light reflected back into the pickup fibers is guided to the CCD array.
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Abstract: "Development of a pen-shaped scanner and its applications", Ichiro Fujieda, et al.
Compact Imaging Apparatus for a Pen-Shaped Hand-Held Scanner, by Haga, Fujieda and Okumura, in Proceedings of the SPIE, International Society for Optical Engineering, vol. 3019, pp. 168-173, Feb. 1997.
Wang Ting
Watanabe Kojiro
Ham Seungsook
NEC USA Inc.
Pyo Kevin
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