第二种可能性则能应用在更加耗电的设备上。其原理是发射一道精确聚焦的红外激光线，击中光伏电池，由此能够将光束转换回电能。
A second possibility, for more power-hungry devices, is to fire a finely focused infrared laser beam at a photovoltaic cell, which converts the beam back to electrical energy.
另外介绍了偏振光转换系统的原理以及和光管的耦合。
Principles of the polarization converter and its coupling with the light pipe are discussed.
从理论上分析了各种半导体光放大器波长转换器的转换原理，并给出了它们的各种结构。
The principle of the conversion is theoretically analysed for wavelength converters with semiconductor optical amplifier, and their structures are giver.
光电滑觉传感器是利用光电效应原理，将机械的滑动通过光信号转换为电信号加以检测。
On the basis of photoelectric effect, photoelectric slippage sensor converts the mechanical slippage into electric signal through optical signal in order to detect.
太阳能的利用原理是通过收集太阳光，并将其转化为光伏(PV)，或者被转换为聚光太阳能发电以供暖。
Solar energy works by capturing sunlight and converting this energy into photovoltaic power (PV). It can also be converted into concentrated solar power (CSP) for solar heating.
太阳能的利用原理是通过收集太阳光，并将其转化为光伏(PV)，或者被转换为聚光太阳能发电以供暖。
Solar energy works by capturing sunlight and converting this energy into photovoltaic power (PV). It can also be converted into concentrated solar power (CSP) for solar heating.
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