Optical scanning apparatus

专利名称：Optical scanning apparatus发明人：Akito Yoshimaru申请号：US09466790申请日：19991220公开号：US06288818B1公开日：20010911

专利附图：

摘要：An optical scanning apparatus includes a plurality of light sources which emitfirst and second beams. First and second coupling lens units respectively couple the firstand second beams emitted by the plurality of light sources. A rotary deflector which haspairs of mutually-opposite reflection surfaces and deflects the first beam in a first

direction by one of the reflection surfaces and deflects the second beam in a seconddirection opposite to the first direction, by another of the reflection surfaces. First andsecond imaging units scan an image surface of a photoconductive medium along a firsthalf of a main scanning line by focusing and deflecting the deflected first beam onto theimage surface, and scan the image surface along a second half of the main scanning lineby focusing and deflecting the deflected second beam onto the image surface, such thatthe first and second halves form a substantially straight scanning line on the imagesurface when the rotary deflector is rotated.

申请人：RICOH COMPANY, LTD.

代理机构：Oblon, Spivak, McClelland, Maier & Neustadt, P.C.

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