发明名称 |
Inspection/adjustment method and apparatus for laser beam output optical unit and laser scanning optical system |
摘要 |
There is disclosed a laser beam output optical unit adjustment method and apparatus, which can perform inspection and adjustment of a laser beam unit and a laser scanning optical system including this unit used in a laser beam printer within a short period of time. The laser irradiation position is roughly adjusted using a wide-field position detector, and focus rough adjustment is then performed using a narrow-field position detector. Thereafter, fine adjustment of the irradiation position and focus fine adjustment are performed using the narrow-field position detector. An image enhancement tube capable of a high-speed gate operation is arranged in a laser scanning region, and instantaneously takes a beam spot during laser scanning. An image processing devices analyzes the taken spot image, and a calculation unit calculates various data.
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申请公布号 |
US5436645(A) |
申请公布日期 |
1995.07.25 |
申请号 |
US19930084625 |
申请日期 |
1993.06.30 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
UEMURA, HIDEAKI;TOBO, YOZO;ICHIKAWA, FUMIO;KATO, MASATOSHI |
分类号 |
B41J2/44;G02B26/10;H04N1/00;H04N1/113;(IPC1-7):B41J2/435 |
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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