发明名称 |
Laser drum for use in recording and reproducing information on optical tapes |
摘要 |
A laser drum which can optically record and reproduce information on optical tapes. The laser drum comprises an upper drum which has two projection holes, rotates and is fitted with semiconductor lasers, a total reflective prism, stoppers, diffraction gratings, beam splitters, object lenses, condensing lenses and photodetectors.
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申请公布号 |
US4807213(A) |
申请公布日期 |
1989.02.21 |
申请号 |
US19870017583 |
申请日期 |
1987.02.24 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
CHUNG, SEUNG T.;KWON, HAE W.;PARK, TAE S. |
分类号 |
G11B7/135;G11B7/003;G11B11/03;(IPC1-7):G11B7/09;G11B7/12 |
主分类号 |
G11B7/135 |
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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