| 发明名称 |
SHIELDING AND PROTECTING DEVICE |
| 摘要 |
PURPOSE:To make possible changing over of the condition where harmful light is cut off and where the field of view is brightened automatically or with simple switch operation by providing an electro-optical element capable of shielding the harmful light incident to the eyes. |
| 申请公布号 |
JPS536057(A) |
申请公布日期 |
1978.01.20 |
| 申请号 |
JP19760080538 |
申请日期 |
1976.07.07 |
| 申请人 |
CANON KK |
发明人 |
OOKUBO YUKITOSHI;MATSUFUJI YOUJI;KASUGAYAMA YUKIO;AYATA NAOKI |
| 分类号 |
G02C7/10;G02F1/13;G02F1/15 |
主分类号 |
G02C7/10 |
| 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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