发明名称 |
Semiconductor laser and optical system having a collimator lens |
摘要 |
An optical system includes a semiconductor laser. The semiconductor laser is accommodated within a case. The case is formed with a window to pass through laser light emitted from the semiconductor laser. The laser light passed through the window comes to a collimator lens. Between semiconductor laser and the collimator lens is provided a light shield member having a pinhole to pass through the laser light having passed the window. Laser light made in a parallel luminous flux is outputted from the collimator lens. This laser light is deflected toward a main scanning direction by a deflector and further collected on a scanning surface by a light collector.
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申请公布号 |
US2002008893(A1) |
申请公布日期 |
2002.01.24 |
申请号 |
US20010947959 |
申请日期 |
2001.09.06 |
申请人 |
ROHM CO., LTD. |
发明人 |
NAKATA NAOTARO;YOSHIDA AKIHISA |
分类号 |
B41J2/44;G02B26/10;G02B26/12;G02B27/30;(IPC1-7):G02B26/08 |
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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