Original illuminating device and original reading device prevent

Details Original illuminating device and original reading device prevent Original illuminating device and original reading device prevent

1991-03-06

1994-05-17

Brinich, Stephen

Facsimile and static presentation processing

Facsimile

Picture signal generator

359 87, G02F 113

Patent

active

053132890

ABSTRACT:
An original illuminating device includes LED (light-emitting diode) chips and a lens for condensing light emitted from the LED chips on an original-reading position, on the same substrate. The device is configured so as to prevent randomly-reflected light in the device from being specularly reflected by an original-mount glass toward a reading device. Since the specularly-reflected light is not incident upon the reading device, only light corresponding to an image on an original is incident upon the reading device. It is therefore possible to correctly read the original.

REFERENCES:
patent: 4560240 (1985-12-01), Sekimura
patent: 4895432 (1990-01-01), Iwashita et al.
patent: 5157422 (1992-10-01), Miyabayashi

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