发明名称 |
Reflective optical sensor and image forming apparatus |
摘要 |
A reflective optical sensor includes at least three light-emitting elements; a lighting optical system that guides light emitted from the light-emitting elements to a toner pattern; and at least three light-receiving elements that receive the beams of light reflected by the toner pattern. The lighting optical system has a lateral magnification m that satisfies m≰P/S, where S is the size of the light-emitting elements and P is the arrangement pitch of the light-emitting elements.
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申请公布号 |
US8422033(B2) |
申请公布日期 |
2013.04.16 |
申请号 |
US20100859373 |
申请日期 |
2010.08.19 |
申请人 |
MASUDA KOJI;SUZUKI HIDEMASA;RICOH COMPANY, LTD. |
发明人 |
MASUDA KOJI;SUZUKI HIDEMASA |
分类号 |
G01B11/14 |
主分类号 |
G01B11/14 |
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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