Optical scanning apparatus and image forming apparatus

Optical: systems and elements – Deflection using a moving element – Using a periodically moving element

Reexamination Certificate

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Reexamination Certificate

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11322264

ABSTRACT:
An optical scanning apparatus includes a deflecting member that deflects and scans a light beam emitted from a light source, an optical element that scans and images the light beam on a medium to be scanned; and an opening member being disposed in a vicinity of the medium to be scanned. The opening member restricts both a scanning direction of the scanned and imaged light beam and a direction perpendicular to the scanning direction of the light beam.

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patent: 6873466 (2005-03-01), Hama et al.
patent: 6965466 (2005-11-01), Ishihara
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patent: 7-72405 (1995-03-01), None
patent: 8-15634 (1996-01-01), None
patent: 8-334710 (1996-12-01), None
patent: 2001-154130 (2001-06-01), None

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