高效率高功率闪光灯

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Although the xenon lamps dominate the standard camera market, they are not applicable in the portable phone. As a matter of fact, the large reservoir capacitor and high voltage
associated with the xenon flash make such a concept not suitable for the cellular phone equipments. The semiconductor based White LED devices provide the right
choice when limited flash light becomes necessary to illuminate a photographic scene. This paper depicts the basics of the xenon concept and details a typical White LED
flash application.， 大小：731 KB