发明名称 |
AUTOMATIC DARKENING FILTER WITH OFFSET POLARIZERS |
摘要 |
A protective automatic darkening filter construction 10 includes two low twist liquid crystal cells 26, 30 interspersed between a series of offset polarizers 24, 28, 32. The resulting construction provides improved homogeneity in the dark state as viewed by the user over a large viewing angle. By reducing variations in shade, visibility through the filter may be improved. |
申请公布号 |
CA2600415(A1) |
申请公布日期 |
2006.09.21 |
申请号 |
CA20062600415 |
申请日期 |
2006.03.02 |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
JAREFORS, KENNETH;DAHLIN, PER-OLAV;MAGNUSSON, KRISTINA M. |
分类号 |
G02F1/1347;A61F9/06;G02F1/1335 |
主分类号 |
G02F1/1347 |
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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