发明名称 MULTIBEAM LIGHT SOURCE DEVICE, OPTICAL SCANNING DEVICE AND IMAGING APPARATUS EQUIPPED THEREWITH, AND OPTICAL SCANNING METHOD USING THIS MULTIBEAM LIGHT SOURCE DEVICE
摘要 PROBLEM TO BE SOLVED: To provide, at low cost, a multibeam scanning device that facilitates adjustment of an exit angle in the sub scanning direction while keeping the variation of the exit angle small in the main scanning direction of a light beam, and also to provide an optical scanning device and an imaging apparatus equipped therewith. SOLUTION: In the multibeam light source device, there are provided a plurality of light source sections having a plurality of light sources that are composed of semiconductor lasers or the like, having a plurality of coupling lenses that are installed correspondingly in one-to-one pairs with the light sources and that are for coupling with light beams emitted from the light sources, and having holding members that each hold the plurality of light sources and the plurality of coupling lenses. In at least one of the plurality of light source sections, there is installed a wedge-shaped member having two planes that form a prescribed angle with each other. With a position, as reference, of the angle nearly maximized which is formed in the main scanning cross section of the two planes of the wedge-shaped member, the wedge-shaped member is rotated, making the exit angle adjustable in the sub scanning direction of the light beams that are emitted from the plurality of light source sections. COPYRIGHT: (C)2005,JPO&NCIPI
申请公布号 JP2005156745(A) 申请公布日期 2005.06.16
申请号 JP20030392776 申请日期 2003.11.21
申请人 RICOH CO LTD 发明人 OSUGI TOMOYA
分类号 B41J2/44;G02B26/10;H04N1/113;(IPC1-7):G02B26/10 主分类号 B41J2/44
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