发明名称 |
Optical beam scanning device and diaphragm device capable of adjusting light quantity distribution |
摘要 |
An optical beam scanning device of the present invention has a light source, a deflection reflecting surface for deflecting to scan light from the light source on a recording medium, and a diaphragm device which is provided between the light source and the deflection reflecting surface, and the diaphragm has an opening section formed by a nonplanar light shielding section. The light shielding section makes light shielding quantity of the light from the light source in a vertical scanning direction different in positions in a horizontal scanning direction and in a light advancing direction.
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申请公布号 |
US7554568(B2) |
申请公布日期 |
2009.06.30 |
申请号 |
US20070976381 |
申请日期 |
2007.10.24 |
申请人 |
KABUSHIKI KAISHA TOSHIBA;TOSHIBA TEC KABUSHIKI KAISHA |
发明人 |
KURIBAYASHI YASUSHI |
分类号 |
B41J2/44;B41J27/00;G02B13/00;G02B26/10;G02B26/12;H04N1/036;H04N1/113 |
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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