Laser beam optical scanning system

Details Laser beam optical scanning system Laser beam optical scanning system

1992-04-29

1996-03-12

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358348, 358480, H04N 584

Patent

active

054991072

ABSTRACT:
A laser beam optical scanning system which has a laser source unit for emitting a laser beam which is a parallel pencil of rays, a first imaging system for imaging the laser beam emitted from the laser source unit on a reflective facet of a deflector, and a second imaging system for imaging the laser beam deflected by the deflector on a photosensitive drum. At least one of the first and the second imaging systems has a resin lens. The resin lens changes its power according to temperature so as to offset a change in light converging performance of the laser source unit.

REFERENCES:
patent: 4297713 (1981-10-01), Ichikawa et al.
patent: 4861137 (1989-08-01), Nagata
patent: 4978976 (1990-12-01), Okino
patent: 4983026 (1991-01-01), Kudo et al.
patent: 5225928 (1993-07-01), Dugan
patent: 5233455 (1993-08-01), Yamaguchi et al.

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