发明名称 |
Optical system having a variable focal length |
摘要 |
It comprises a container made at least partly from a transparent material and filled with an index adapting medium. At least one of the walls of the container through which the optical axis of the system extends comprises a piezoelectric multilayer structure for modifying the curvature of the wall in accordance with the voltage applied to the multilayer structure.
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申请公布号 |
US4289379(A) |
申请公布日期 |
1981.09.15 |
申请号 |
US19780896079 |
申请日期 |
1978.04.13 |
申请人 |
QUANTEL S.A. |
发明人 |
MICHELET, GUY |
分类号 |
G02B17/08;G02B3/12;G02B3/14;G02B26/08;(IPC1-7):G02B3/14;G02F1/29 |
主分类号 |
G02B17/08 |
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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