Image reading apparatus

Details Image reading apparatus Image reading apparatus

1992-07-01

1995-05-16

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Picture signal generator

358480, 358484, 358487, 25022711, H04N 146, H01J 516

Patent

active

054166080

ABSTRACT:
An image reading apparatus for reading a projected image by a line sensor formed in a linear shape. An image reading apparatus has an illumination system, an original supporting member, a projection lens and a line sensor formed in a linear shape. The illumination system includes a light guide formed of a cylindrically shaped light-transmitting material, a light source for introducing light into the light guide from the lengthwise direction of the light guide, a light-diffusing portion formed on the circumference of the light guide in the lengthwise direction of the light guide and a slit portion positioned opposite the light-diffusing portion.

REFERENCES:
patent: 4111523 (1976-08-01), Kaminow
patent: 4585298 (1983-08-01), Mori
patent: 4747660 (1987-01-01), Nishioka
patent: 4784877 (1987-03-01), Trumble
patent: 4904035 (1988-08-01), Heckmann
patent: 4929045 (1988-09-01), Fuller

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