发明名称 |
Optical wavelength tunable filter |
摘要 |
An optical filter having a transmission wavelength to be tuned dependent on light incident angle is rotatively provided in a collimated light path. The optical filter is rotated by the displacement of a piezoelectric actuator by a structure in which the displacement is converted to the rotation of the optical filter. The converting structure comprises a displacement magnifying mechanism for magnifying the displacement to provide the magnified displacement and a motion converting mechanism for converting the magnified displacement to the rotation of the optical filter.
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申请公布号 |
US5506920(A) |
申请公布日期 |
1996.04.09 |
申请号 |
US19940188027 |
申请日期 |
1994.01.28 |
申请人 |
NEC CORPORATION |
发明人 |
SUEMURA, YOSHIHIKO;HENMI, NAOYA;TAJIMA, AKIO;TAKAHASHI, HARUO;MORIMURA, HIROYUKI |
分类号 |
G01J3/26;G02B5/28;G02B7/00;H01L41/09;(IPC1-7):G02B6/26 |
主分类号 |
G01J3/26 |
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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