Optical energy radiated from fuel flame in boiler so far is widely use for furnace flame detection. Most of the flame detectors are of infrared type both in China and abroad.

利用炉内燃料燃烧过程中火焰辐射的光能监测炉膛火焰是目前应用的最广泛的方法，红外线火焰监测器在国内外应用最广。

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On the basis of the quantum theory, the optical energy and various noise of CCD could be converted to equivalent electric charges, and then the facular detection model of CCD was proposed.

以量子理论为基础，把激光能量和各种CCD噪声都转换为等效电荷，在此基础上建立了CCD光斑检测模型。

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The optical energy stored in the spherical cavity can be transmitted via other multi-mode optical fibres to destination for directly application, such as lighting, heating, or generation electricity.

该球腔内储存的光能再根据需要通过另外一些的多模光纤直接传输目的地，直接照明、直接加热或者转换成光伏电能等进行直接利用。

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Nitride semiconductors have attracted attention for their potential applications in highly efficient optical and power devices for energy saving.

ENGADGET: Panasonic Photosynthesis System converts carbon dioxide to organic material with plant-like efficiency

"We need very accurate high resolution images over a very wide field for the Dark Energy Survey" says Dr Peter Doel from UCL's Optical Science Laboratory.

BBC: Getting the measure of dark energy

But the scientists are confident the object is a pulsar, rather than a regular neutron star, because of its high-energy emission and the fact that it doesn't show up in optical wavelengths.

MSN: Runaway star may be fastest pulsar yet - Technology & science - Space - Space.com | NBC News