| 发明名称 |
Flexible, high contrast, non-glare, polarizing filter for an illuminated switch assembly |
| 摘要 |
An optically coated, flexible glass plate cemented to a sheet of polarizing material combine to provide a high contrast, non-glare, polarizing filter that can be used in combination with an illuminated switch assembly such as with conventional membrane switches.
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| 申请公布号 |
US4318958(A) |
申请公布日期 |
1982.03.09 |
| 申请号 |
US19800181460 |
申请日期 |
1980.08.25 |
| 申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE ARMY |
发明人 |
PIATT, DAVID M. |
| 分类号 |
G02B27/28;(IPC1-7):B32B17/06 |
主分类号 |
G02B27/28 |
| 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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