Image inputting apparatus

Details Image inputting apparatus Image inputting apparatus

1995-11-15

1997-12-30

Nelms, David C.

Optical: systems and elements

Lens

With support

358451, G02B 702, H04H 1393

Patent

active

057037299

ABSTRACT:
In an optical system, when a binary image is to be read, a first reducing projection lens is located onto an optical axis and focuses an image of the original at a first magnification (relatively high magnification), and a mirror divides the entire image into three divided images which will be then projected onto three CCDs, respectively. On the other hand, when a multivalued image is to be read, a second reducing projection lens is located onto the optical axis and focuses an image of the original at a second magnification (relatively low magnification) which is lower than the first magnification, and the entire image is projected onto one of the three CCDs.

REFERENCES:
patent: 4565865 (1986-01-01), Yamada
patent: 4589140 (1986-05-01), Bishop
patent: 4870357 (1989-09-01), Young
Patent Abstracts of Japan, vol. 13, No. 81 (E-719), Fuji Photo Film Co. Ltd., 1988.
Patent Abstracts of Japan, vo. 7, No. 218 (E-200), Canon KK, 1983.

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