发明名称 |
Optical device. |
摘要 |
Represented in Figure 1 is a so-called optical delay line, which has a corner prism (1) with a capped peak (2). A light beam (5) emitted by a laser (4) illuminates the corner prism (1) at the rear through a surface (3) which is produced by the capping of the peak (2). The light beam (5) is retroreflected into the corner prism (1) by a reflecting element (6) in such a way that at least one retroreflection occurs. <IMAGE> |
申请公布号 |
EP0444526(B1) |
申请公布日期 |
1995.03.29 |
申请号 |
EP19910102511 |
申请日期 |
1991.02.21 |
申请人 |
DR. JOHANNES HEIDENHAIN GMBH |
发明人 |
SPANNER, ERWIN, DIPL.-PHYS. |
分类号 |
G01B9/02;G01D5/38;G02B5/122;G02B6/28;G02B17/04;(IPC1-7):G02B17/04 |
主分类号 |
G01B9/02 |
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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