Scanning lens and scanning optical device

Details Scanning lens and scanning optical device Scanning lens and scanning optical device

2005-07-19

2005-07-19

Epps, Georgia (Department: 2873)

Optical: systems and elements

Lens

High distortion lens

C359S642000, C359S206100

Reexamination Certificate

active

06919993

ABSTRACT:
A scanning lens molded with resin is disclosed. The lens has a first lens surface which a light beam incident to, and a second lens surface which emits the light beam. The lens further includes a first lens frame formed to project from the first lens surface, the first lens frame is provided on at least a part of the periphery of the first lens surface. The lens further includes a second lens frame formed to project from the second lens surface. The second lens frame is provided on at least a part of the periphery of the second lens surface. At least one of the first and second lens frames has approximately constant projection amount along with the main-scanning direction of the scanning lens.

REFERENCES:
patent: 5280379 (1994-01-01), Sugiura
patent: 6181455 (2001-01-01), Ishihara
patent: 6324015 (2001-11-01), Fuse
patent: 9-329755 (1997-12-01), None

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