发明名称 |
Optical device and method for controlling the same |
摘要 |
An optical device includes: a light source that emits laser beams; a detecting unit that detects the laser beams and converts light amounts of the detected laser beams into voltage values; a first storage unit that stores in advance a light amount to be output for each of the laser beams and the voltage value; a second storage unit that stores in advance a value indicating light use efficiency of an optical system that guides the laser beams to a surface to be scanned for scanning; a calculating unit that calculates a target voltage value for each of the laser beams based on the light amount and the voltage value and also on the value indicating the light use efficiency; and a control unit that controls emission power for each of the laser beams so that the voltage value output from the detecting unit approaches the target voltage value.
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申请公布号 |
US8520711(B2) |
申请公布日期 |
2013.08.27 |
申请号 |
US201213444309 |
申请日期 |
2012.04.11 |
申请人 |
YAMASHITA HIDETOSHI;RICOH COMPANY, LIMITED |
发明人 |
YAMASHITA HIDETOSHI |
分类号 |
H01S3/00 |
主分类号 |
H01S3/00 |
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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