Optical scanning apparatus

Details Optical scanning apparatus Optical scanning apparatus

1990-03-22

1993-10-05

Arnold, Bruce Y.

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359204, 359206, 359207, 359662, 346108, 2505781, G02B 2608

Patent

active

052510557

ABSTRACT:
An optical scanning apparatus for effecting the scanning with plural light beams, without aberrations among the obtained scanning lines and without curvature in the scanning lines. For this purpose plural light beams emitted from plural light sources are deflected by a single deflector, composed for example of a rotary polygon mirror, and guided to respective scanned planes through a scanning condenser lens system, having the f-.theta. characteristics in the scanning direction and also having plural optical axes in the sub scanning direction.

REFERENCES:
patent: 4378480 (1983-03-01), Langhans
patent: 4561717 (1985-12-01), Kataoka
patent: 4578688 (1986-03-01), Okuno
patent: 4796961 (1989-01-01), Yamada et al.
patent: 4907017 (1990-03-01), Azuma
patent: 4962983 (1990-10-01), Watanabe
Tam et al., "Lasers in Electrophotography" IBM J. Res. Develop. 26:2:Mar. 1982.

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