发明名称 |
OPTICAL HEAD FOR RECORD REPRODUCER OF INFORMATION MEDIUM |
摘要 |
The optical head in the recording - reading device of a data carrier comprises a semiconductor laser source. A lens makes it possible to focus the beam from this source on to the data carrier via a reflecting or deviating mirror. According to the invention the rotation axis of this mirror is in the plane of the entrance pupil and of the focus of the focusing lens. |
申请公布号 |
JPS58166544(A) |
申请公布日期 |
1983.10.01 |
申请号 |
JP19830037567 |
申请日期 |
1983.03.09 |
申请人 |
THOMSON CSF |
发明人 |
KURAUDEI BURIKOTSUTO;MITSUSHIERU SHIYABOTSUSHIE;PATORITSUKU BOREOO;DOMINIKU RETERUME;JIEENNPIEERU RE MERAA |
分类号 |
G02B26/10;G02B26/08;G11B7/08;G11B7/09;G11B7/12 |
主分类号 |
G02B26/10 |
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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