To drive the optical system independently by CPU in flatbed scan

Details To drive the optical system independently by CPU in flatbed scan To drive the optical system independently by CPU in flatbed scan

1995-09-08

1997-05-27

Phan, James

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359209, 359210, 359212, 359223, 358474, 358483, 358497, G02B 2608

Patent

active

056337450

ABSTRACT:
An optical system for a flatbed scanner, including a first optical unit to emit light onto a document and to reflect the image of the document, a second optical unit to receive reflected light from the first optical unit and to reflect it, a third optical unit to receive reflected light from the second optical unit and to send it out, and a fourth optical unit to receive light from the third optical unit and to pick up the image from it, wherein the first optical unit, the second optical unit and the third optical unit can be independently moved relative to the fourth optical unit subject to a predetermined setting made in the optical scanner.

REFERENCES:
patent: 4050780 (1977-09-01), Wei et al.
patent: 5117256 (1992-05-01), Haibara
patent: 5206501 (1993-04-01), Sakakibara et al.
patent: 5214294 (1993-05-01), Toyofuku
patent: 5535040 (1996-07-01), Ohtsuka et al.

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