发明名称 |
Light beam scanning apparatus with multiple sensors and patterns |
摘要 |
Two sawtooth sensor patterns are combined so that they engage with each other. These sensor patterns are arranged so that a light beam passes sawtooth portions in a horizontal scan direction. A light beam's scan position is determined by integrating a difference between output signals from these sensor patterns. It is possible to provide a highly sensitive circuit for processing signals from the sensors and to improve detection accuracy for light beams.
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申请公布号 |
US6509921(B2) |
申请公布日期 |
2003.01.21 |
申请号 |
US20010816773 |
申请日期 |
2001.03.26 |
申请人 |
TOSHIBA TEC KABUSHIKI KAISHA |
发明人 |
KOMIYA KENICHI;TANIMOTO KOJI;SAKAKIBARA JUN;KAWAI KOJI |
分类号 |
B41J2/44;G02B26/10;G03G15/04;G06K15/12;H04N1/047;H04N1/113;H04N1/12;H04N1/191;(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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