发明名称 |
Intelligent light source with synchronization with a digital camera |
摘要 |
An intelligent light source for use with the test of a digital camera module provides a plurality of shapes of light. A fast light pulse is created with turn-on and turn-off transitions less than or equal to one microsecond. Other waveform shapes comprise a ramp and a sinusoid, and all shapes can be made to occur once or repetitively. The magnitude of the light has a range from 0.01 LUX to 1000 LUX, and the ramp has a ramp time that has a range from microseconds to 100 ms. The light comprises of a plurality of colors created by serial connected strings of LED devices, where the LED devices in a string emit the same color. The light emanating from the light source is calibrated using a photo diode and the control of a tester by adjusting offset voltages of a DAC controlling a current through the LED strings.
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申请公布号 |
US2010259623(A1) |
申请公布日期 |
2010.10.14 |
申请号 |
US20100661927 |
申请日期 |
2010.03.26 |
申请人 |
DIGITAL IMAGING SYSTEMS GMBH |
发明人 |
KNOEDGEN HORST;HUETTMANN DIRK |
分类号 |
H04N17/00;H05B33/00;H05B37/00;H05B37/02;H05B41/16 |
主分类号 |
H04N17/00 |
代理机构 |
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代理人 |
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地址 |
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