发明名称 |
Circuit arrangement for measuring or monitoring light |
摘要 |
Circuit arrangement for measuring or monitoring light uses a photosensitive semiconductor element which has an internal resistance depending on the current direction, and to which an alternating signal is applied from a signal source. An evaluation device detects the difference of the conductivity of the semiconductor element which depends on the polarity of the applied signal. <IMAGE>
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申请公布号 |
DE3139542(A1) |
申请公布日期 |
1983.04.21 |
申请号 |
DE19813139542 |
申请日期 |
1981.10.05 |
申请人 |
PHILIPS PATENTVERWALTUNG GMBH |
发明人 |
STUMPE,HANS |
分类号 |
G01J1/44;H01L31/09;(IPC1-7):G01J1/44;F23N5/08 |
主分类号 |
G01J1/44 |
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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