发明名称 |
MEANS TO LESSEN UNWANTED REFLECTIONS IN AN OPTICAL DEVICE |
摘要 |
An device for splitting an optical beam into two beams propagating along different optical paths, is provided. The device includes a pair of graded index collimating lenses having their planar collimating ends aligned such that they are both inwardly facing and share a common optical axis. A partially transmitting partially reflective material is disposed between the lenses. At least one of the planar endfaces of the collimating ends are wedge shaped such that a non-zero angle is formed between the two endfaces. This non-zero angle reduces the effect of unwanted optical interference.
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申请公布号 |
CA2147937(C) |
申请公布日期 |
2000.04.11 |
申请号 |
CA19952147937 |
申请日期 |
1995.04.26 |
申请人 |
SI, Y. CALVIN;DUCK, GARY STEPHEN;CHENG, YIHAO |
发明人 |
SI, Y. CALVIN;DUCK, GARY STEPHEN;CHENG, YIHAO |
分类号 |
G02B6/26;G02B27/10;(IPC1-7):G02B27/10 |
主分类号 |
G02B6/26 |
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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