发明名称 |
Optical control circuit for electrochromic layers |
摘要 |
In order to regulate the absorptance of an electrochromic layer, the absorptance of the layer is measured optically. The signal derived therefrom is compared with a guide value and fed to a controller which has a dead zone between two hysteresis regions (at switch points), and charges are fed to or removed from the layer as required. Preferred fields of use are lenses, particularly eyeglass lenses, filters and dimmable mirrors to which an electrochromic layer is applied with provision for controlled change of its absorptance.
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申请公布号 |
US4529873(A) |
申请公布日期 |
1985.07.16 |
申请号 |
US19820434715 |
申请日期 |
1982.10.15 |
申请人 |
CARL-ZEISS-STIFTUNG, HEIDENHEIM/BRENZ |
发明人 |
BALLMER, HORST;WIEDMANN, ERWIN |
分类号 |
G09F9/30;B60R1/08;G02F1/163;(IPC1-7):G01J1/20 |
主分类号 |
G09F9/30 |
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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