Variable scanning speed optical scanning device

Details Variable scanning speed optical scanning device Variable scanning speed optical scanning device

1991-09-25

1993-10-12

Brinich, Stephen

Facsimile and static presentation processing

Facsimile

Picture signal generator

358486, G05B 1910

Patent

active

052530850

ABSTRACT:
An optical scanning device which can prevent increase of the weight or capacity involved with distortion correction to sufficiently correct the distortion at low cost. A correction arrangement is provided to control the rotating angular velocity of a scanning rotary mirror in accordance with the scanning position of a scanning face. By controlling the rotating angular velocity of the scanning rotary mirror, the distortion aberration on the scanning face is corrected so that sufficiently accurate optical scanning can be performed without optically correcting the distortion aberration.

REFERENCES:
patent: 3560651 (1971-02-01), Roth
patent: 3848087 (1974-11-01), Carrell
patent: 4523093 (1985-06-01), Neumann
patent: 4923263 (1990-05-01), Johnson
patent: 4962981 (1990-10-01), Murakami et al.
patent: 4975626 (1990-12-01), Yagi et al.
patent: 5046796 (1991-09-01), Andoh et al.

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