发明名称 |
Semiconductor light emitting device and apparatus using the same |
摘要 |
A collimated-beam generating device using a semiconductor laser includes a two-lens system in which light converged by a first lens is converted into a collimated beam by a second lens, whereby a distance between the semiconductor laser and the first lens is made large, assembly of the device is made easy, and a collimated beam having a small beam diameter can be produced.
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申请公布号 |
US5046798(A) |
申请公布日期 |
1991.09.10 |
申请号 |
US19890387984 |
申请日期 |
1989.08.01 |
申请人 |
HITACHI, LTD. |
发明人 |
YAGIU, YASUTOSHI;KUMAZAWA, TETSUO;SHIMAOKA, MAKOTO;AIKI, KUNIO |
分类号 |
G02B6/42;H01L33/58;H01S5/00 |
主分类号 |
G02B6/42 |
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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