Optical scanning apparatus

Details Optical scanning apparatus Optical scanning apparatus

2005-03-08

2005-03-08

Cherry, Euncha P. (Department: 2872)

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

Reexamination Certificate

active

06865004

ABSTRACT:
An optical scanning apparatus including a light source, a light deflector having a plurality of deflection surfaces to deflect a light beam emitted from the light source, and an image forming optical system to form an image on a target surface with a light beam deflected by the light deflector and reflect the light beam emitted from the light source using a deflection surface of the light deflector to scan the target surface. The optical scanning apparatus includes a mirror member, which has different refractivities in a main scan direction and a sub scan direction so that the mirror member reflects the light beam emitted from the light source to form a long linear image on the deflection surface in the main scan direction.

REFERENCES:
patent: 6504639 (2003-01-01), Yoshikawa et al.
patent: 2002-40345 (2002-02-01), None

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