Optical scanning system with tilt correction function

Details Optical scanning system with tilt correction function Optical scanning system with tilt correction function

1992-09-30

1994-08-30

Ben, Loha

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359710, 359711, 359717, 359795, G02B 2608, G02B 1318, G02B 904

Patent

active

053433254

ABSTRACT:
A compact scanning optical system for effecting a superior tilt surface correction and for reducing a field curvature. The system is provided with a focusing optical system which is composed of a first single lens and a second single lens, wherein the first single lens, with a positive refracting power in a plane of scan, has a toric surface from an image plane and the second single lens, with a negative refracting power in the scan plane, has an aspherical lens.

REFERENCES:
patent: 5025268 (1991-06-01), Arimoto et al.
patent: 5062679 (1991-11-01), Itabashi
patent: 5206755 (1993-04-01), Yawmakawa

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