Scanning apparatus including a light adjusting device

Details Scanning apparatus including a light adjusting device Scanning apparatus including a light adjusting device

1995-09-15

1997-01-07

Vu, Kim

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358475, H04N 140

Patent

active

055923062

ABSTRACT:
The present invention is related to a scanning apparatus which includes a scanning device emitting a light to a scanned target and receiving a reflected light from the scanned target for scanning the scanned target, and a light-adjusting device electrically connected to the scanning means and adjusting the light emitted from the light source in accordance with the reflected light. The scanning apparatus according to the present invention uses the light-adjusting device to make the scanning device capable of scanning objects having various background colors, i.e. various transmission/reflection ratios, so that a high efficiency and a high resolution image can be obtained.

REFERENCES:
patent: 4952972 (1990-08-01), Someya
patent: 5084772 (1992-01-01), Shimoyama
patent: 5119211 (1992-06-01), Sakurai
patent: 5151797 (1992-09-01), Nosaki et al.
patent: 5278674 (1994-01-01), Webb et al.
patent: 5296944 (1994-03-01), Suzuki et al.
patent: 5336976 (1994-08-01), Webb et al.
patent: 5414535 (1995-05-01), Kanmoto et al.

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