LIGHT BEAM SCANNING OPTICAL DEVICE

申请公布号：JP2004061746(A)

申请号：JP20020218486

申请日期：2002.07.26

申请公布日期：2004.02.26

申请人：

MINOLTA CO LTD

发明人：OTANI NORITAKA;TANIGUCHI HAJIME;KINOSHITA HIROKI;TAKESHITA KENJI

分类号：B41J2/44;G02B26/10;G02B26/12;H04N1/113;(IPC1-7):G02B26/10

主分类号：B41J2/44

摘要：PROBLEM TO BE SOLVED: To provide a light beam scanning optical device capable of image deterioration due to rotation unevenness and vibration associated with the rotation of a polygon mirror. SOLUTION: The light beam scanning optical device 1 which deflects light beams emitted by light sources 4K, 4C, 4M, and 4Y by a rotating polygon mirror and shapes them in a given shape by an fθlens 8 for scanning is characterized in that the light sources 4K, 4C, 4M, and 4Y are provided in a polygon chamber 16 where the polygon mirror 7 is installed with ribs 16a formed integrally with housings 2 and 3 separately from the fθlens 8 and the polygon chamber 16 is partitioned with a straightening plate 17 surrounding the circumference of the polygon mirror 7. COPYRIGHT: (C)2004,JPO

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