Optical scanning device

Details Optical scanning device Optical scanning device

1985-06-21

1989-01-10

Corbin, John K.

350 65, G02B 2610

Patent

active

047969652

ABSTRACT:
An optical scanning device comprises a mechanical type optical deflector provided with a deflecting reflecting surface which is rotated or swivelled, and two flat correction mirrors arranged so that the line of intersection of the two mirrors is perpendicular to the axis of rotation of the optical deflector. The incident light beam deflected by the deflecting reflecting surface goes to one of the two plane correction mirrors, then the other, which reflects it back to the deflecting reflecting surface, whence it goes as the scanning beam to the scanning surface. The arrangement of the correction mirrors, deflecting reflector and incident beam is such that that scanning line distortion such as caused by component misalignment and the like can be reduced to negligible proportions.

REFERENCES:
patent: 3897132 (1975-07-01), Meeussen et al.
patent: 4312590 (1982-01-01), Harbaugh
patent: 4429948 (1984-02-01), Garwin
patent: 4433894 (1984-02-01), Hanson et al.
patent: 4564931 (1986-01-01), O'Hara et al.
patent: 4624528 (1986-11-01), Brueggemann
patent: 4682842 (1987-07-01), Brueggemann

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