发明名称 |
LAMP |
摘要 |
<p>There is provided a lamp capable of informing a user that the LED lamp is at the end of its productive life and urging the user to replace the lamp reliably with a simple configuration. The lamp includes: a light emitting diode (1) as a light source; and a driving circuit (3) that turns on the light emitting diode (1) by an alternating-current or direct-current power source. The lamp further includes a life detecting element (2) that turns off the light emitting diode (1) following the occurrence of insulation deterioration in a resin material when the light emitting diode (1) has been operated for a predetermined time.</p> |
申请公布号 |
EP2533614(A1) |
申请公布日期 |
2012.12.12 |
申请号 |
EP20110739517 |
申请日期 |
2011.01.20 |
申请人 |
PANASONIC CORPORATION |
发明人 |
SUGITA, KAZUSHIGE;ANDO, TAMOTSU |
分类号 |
H05B37/02;F21S2/00;F21V23/00;F21V29/00;F21Y101/02;H05B33/08 |
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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