发明名称 |
Optical scanning device, image forming apparatus, and optical scanning method |
摘要 |
An optical scanning device condenses a beam deflected by a light deflector, by a scanning and imaging lens toward a surface to be scanned to form a beam spot thereon, and scans the surface to be scanned by the beam spot. At least one lens of the scanning and imaging lens is configured so that a lens body thereof is held by a holding frame, wherein a rib surface at an end in a longitudinal direction of the holding frame is inclined so that a ghost light generated as a result of the deflected beam being reflected by the end in the longitudinal direction of the holding frame is changed in light path in a sub-scan direction.
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申请公布号 |
US6657761(B2) |
申请公布日期 |
2003.12.02 |
申请号 |
US20010816378 |
申请日期 |
2001.03.26 |
申请人 |
RICOH COMPANY, LTD. |
发明人 |
SUZUKI SEIZO;TAKANASHI KENICHI |
分类号 |
B41J2/44;B41J2/47;G02B26/10;G02B26/12;H01L23/051;H01L23/36;H01L25/07;H04N1/113;(IPC1-7):G02B26/08 |
主分类号 |
B41J2/44 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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