Optical scanning device and image forming apparatus...

Details Optical scanning device and image forming apparatus... Optical scanning device and image forming apparatus...

2007-08-14

2007-08-14

Cherry, Euncha P. (Department: 2872)

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

C347S261000

Reexamination Certificate

active

11102551

ABSTRACT:
In order to determine an arrangement of an optical scanning device provided with a rotary polygon mirror having a plurality of reflective faces, it is determined a direction of polarization of light which is to be made incident on one of the reflective faces and to be reflected and deflected in accordance with a rotary action of the polygon mirror; and it is determined a direction from which the light is made incident on the one of the reflective faces, such that a variation of reflectivity of the light depending on a variation of an incident angle thereof in accordance with the rotary action of the polygon mirror compensate for a positional variation of reflectivity on the one of the reflective faces.

REFERENCES:
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patent: 5196697 (1993-03-01), Arimoto et al.
patent: 2002/0060829 (2002-05-01), Ueda
patent: 40 41 872 (1990-12-01), None
patent: 06-059210 (1994-03-01), None
patent: 2004-054116 (2004-02-01), None

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