Optical scanning lens and optical scanning apparatus

Details Optical scanning lens and optical scanning apparatus Optical scanning lens and optical scanning apparatus

1998-02-10

2000-05-30

Spyrou, Cassandra

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359205, 359207, 359215, 359720, G02B 2608

Patent

active

060697245

ABSTRACT:
An optical scanning apparatus includes an optical scanning lens composed of a single lens which is arranged and adapted to correct for placement errors of optical elements. The shapes of both surfaces of the optical scanning lens are non-arc in a deflective surface and at least one surface thereof has a special toric surface. The scanning lens is meniscus having a concave shape in a sub-scanning direction and is biconvex in a main scanning direction.

REFERENCES:
patent: 5710654 (1998-01-01), Ota
patent: 5828480 (1998-10-01), Nakamura et al.
patent: 5875051 (1999-02-01), Suzuki et al.

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