| 发明名称 |
SMOKE DETECTOR |
| 摘要 |
PURPOSE:To hold constant reliability for a long period of time by so controlling the transmission factor of a liquid crystal filter interposed between a light source and a photo detector that the photo detector uptputs applied to a level comparator become constant. |
| 申请公布号 |
JPS53110885(A) |
申请公布日期 |
1978.09.27 |
| 申请号 |
JP19770026404 |
申请日期 |
1977.03.09 |
| 申请人 |
OMRON TATEISI ELECTRONICS CO |
发明人 |
MURAI KIYOMI;INO HARUSHIGE;AOKI SHIYUNTAROU |
| 分类号 |
G01N21/59;G01N21/25;G08B17/10;G08B17/103 |
主分类号 |
G01N21/59 |
| 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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