发明名称 |
Illumination apparatus |
摘要 |
<p>An illumination apparatus includes a lamp load; a lighting circuit unit for turning on the lamp load; a sensor unit; an amplifier circuit unit for; a control unit for controlling the lighting circuit unit to turn on or off the lamp load depending on presence or absence of a human body; and a power supply unit. The control unit determines that a human body is present when a voltage of the amplified detection signal exceeds a first threshold voltage while the lighting circuit unit is not operated and the lamp load is turned off, and determines that a human body is present if a voltage of the amplified detection signal exceeds a second threshold voltage while the lighting circuit unit is operated and the lamp load is turned on, a magnitude of the second threshold voltage being set to be higher than a magnitude of the first threshold voltage.</p> |
申请公布号 |
EP2254395(A1) |
申请公布日期 |
2010.11.24 |
申请号 |
EP20100005142 |
申请日期 |
2010.05.17 |
申请人 |
PANASONIC ELECTRIC WORKS CO., LTD. |
发明人 |
SOBAGAKI, TAMAMI;GOTOU, SHIGEO;MURAKAMI, TADASI |
分类号 |
H05B37/02;G08B13/19;G08B29/26 |
主分类号 |
H05B37/02 |
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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