发明名称 |
SYSTEM AND METHOD FOR OUTPUT FLUX MEASUREMENT OF A LIGHT EMITTING DIODE |
摘要 |
A method of estimating the output light flux of a light emitting diode, comprises applying a drive current waveform to the LED over a period of time comprising a testing period. The forward voltage across the LED is monitored during the testing period, and the output light flux is estimated as a function of changes in the forward voltage.
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申请公布号 |
US2011080113(A1) |
申请公布日期 |
2011.04.07 |
申请号 |
US20100876063 |
申请日期 |
2010.09.03 |
申请人 |
NXP B.V. |
发明人 |
NGUYEN HOANG VIET;BANCKEN PASCAL;SURDEANU RADU |
分类号 |
H05B37/02;G01R19/00;G06F19/00 |
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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