| 发明名称 |
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| 摘要 |
<p>A door securing light barrier with a plurality of optically active devices, between which the light barrier beam extends through at least part of the door opening and whereof one emits an electrical signal when the light barrier beam is broken, the angle of the light beam of the light beam emitting device being adjustable relative to a fixed casing.</p> |
| 申请公布号 |
CH598578(A5) |
申请公布日期 |
1978.04.28 |
| 申请号 |
CH19760011918 |
申请日期 |
1976.09.21 |
| 申请人 |
SICK, ERWIN, GMBH OPTIK-ELEKTRONIK |
发明人 |
ERWIN LANGENBACH;KARL HANS SACKMANN |
| 分类号 |
E05F15/20;G01V8/22;(IPC1-7):01D21/04;60J5/00;60R21/00 |
主分类号 |
E05F15/20 |
| 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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