Optical scanning apparatus

Details Optical scanning apparatus Optical scanning apparatus

1997-08-25

1998-06-30

Dzierzynski, Paul M.

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359201, 359209, 359216, 347233, 347242, G02B 2608

Patent

active

057742480

ABSTRACT:
An optical scanning apparatus can record image information in a plurality of resolutions by changing the pitch (scanning interval) of light beams in a direction orthogonal to the scanning direction. In the apparatus, a plurality of light beams emitted from a light-source unit having a plurality of light-emitting portions are guided to a deflector via an optical system, and are deflected and reflected by the deflector. The light beams are then guided to a surface to be scanned via an imaging unit, so that the surface is simutaneously scanned by the plurality of light beams. At that time, an angle .theta. between a first line connecting imaged positions of the plurality of light beams on the surface and a second line obtained by the scanning line of the light beams in the scanning direction on the surface, can be changed by an angle adjusting unit.

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