Post-objective type optical scanner

Details Post-objective type optical scanner Post-objective type optical scanner

1991-10-30

1992-10-20

Ben, Loha

Optical: systems and elements

Deflection using a moving element

359216, 359219, 250236, 346108, G02B 2610

Patent

active

051575329

ABSTRACT:
A post-objective type optical scanner in which optical flux is converted to condensed light or diffused light by a lens and then scanned on a scanning surface by an optical deflector is constituted by a light source, an optical scanner for leading the flux of light from the light source to an optical deflector and an optical deflector which has a toric deflecting surface in which the radius in the scanning direction is convex and the radius in the sub-scanning direction is concave, and which compensates the curvatures of field in both scanning and sub-scanning directions and scans the optical flux by rotation.

REFERENCES:
patent: 4357071 (1982-11-01), Mankel et al.
patent: 4560862 (1985-12-01), Eastman et al.
patent: 4624528 (1986-11-01), Brueggemann
patent: 4756585 (1988-07-01), Kaneko et al.
patent: 4875748 (1989-10-01), Matsumoto et al.
patent: 5039184 (1991-08-01), Murakawa et al.

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