Image reading system with means for converging light from a plur

Details Image reading system with means for converging light from a plur Image reading system with means for converging light from a plur

1997-01-16

1999-10-12

Le, Que T.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

250216, 358482, H01J 4014

Patent

active

059658703

ABSTRACT:
There is provided an image reading system which can read an image at a high picture quality by having a plurality of light sources arranged on the same plane, an optical guide member for guiding lights irradiated from the plurality of light sources and almost uniformly irradiating an object in a line, a common converging member for converging the lights irradiated from the plurality of light sources so as to enter at least an almost same position in the longitudinal direction on the cross sectional surface of the optical guide member, a line-shaped photoelectric converting device for converting the light from the object irradiated by the optical guide member into an image signal, and a control unit for controlling the plurality of light sources and the photoelectric converting device.

REFERENCES:
patent: 4818861 (1989-04-01), Horiuchi et al.
patent: 5182445 (1993-01-01), Yamashita
patent: 5416608 (1995-05-01), Ueda et al.

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