发明名称 |
OPTICAL HEAD IN A WRITE-READ DEVICE FOR AN INFORMATION CARRIER |
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 |
DE3372033(D1) |
申请公布日期 |
1987.07.16 |
申请号 |
DE19833372033 |
申请日期 |
1983.02.25 |
申请人 |
THOMSON-CSF |
发明人 |
BRICOT, CLAUDE;CHABOCHE, MICHEL;VOLLEAU, PATRICK;LETERME, DOMINIQUE;LE MERER, JEAN-PIERRE |
分类号 |
G02B26/10;G02B26/08;G11B7/08;G11B7/09;G11B7/12;(IPC1-7):G11B7/08;G02B7/18 |
主分类号 |
G02B26/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|