发明名称 [A FlashLIGHT CONTROL DEVICE AND An OPERATING method thereof]
摘要 A flashlight control device and an operating method thereof are provided. The present invention utilizes the light-tuning circuit to optics-electricity converse the reflected light (from the target object) to the exposure voltage. When the exposure voltage is higher than the reference voltage, the flashlight stops light-emission because it means the amount of the light-emission amount is adequate. When the exposure voltage is lower than the reference voltage, the flashlight continues to emit the incident light because the amount of the light-emission is not adequate. Hence, occurrence of the over-exposure or under-exposure problems can be effectively eliminated.
申请公布号 US2004233323(A1) 申请公布日期 2004.11.25
申请号 US20030605302 申请日期 2003.09.22
申请人 WANG JACK 发明人 WANG JACK
分类号 G03B15/05;H04N5/222;H04N5/235;H04N5/238;(IPC1-7):H04N5/222 主分类号 G03B15/05
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