Powerbeam公司的方案是为接收设备配备一枚小型荧光灯泡，这样传输器的摄像头就能跟踪光线，并适时引导激光束方向。
Powerbeam's solution is to fit a small fluorescent bulb to the receiving device so that a camera on the transmitter can track the light and steer the laser beam accordingly.
Power beam公司的产品应该不存在这样的危险：如果传输器上的小摄像头没能捕捉到接收器灯泡发出的微弱光线，激光就会在几微秒内关掉。
That shouldn't be a danger with PowerBeam's products: if the small camera on the transmitter fails to see the small light bulb of the receiver, it shuts down the laser within milliseconds.
波文博士认为，改造现在的LED使之适应智能手机及类似设备上已有的感应器及光源，如摄像头、环境光感应器、屏幕、闪光灯泡、手电筒等。
Dr Povey believes that adapting existing LEDs to work with the sensors and light sources—cameras, ambient-light detectors, screens, flashbulbs, torches and so on.
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