The certain correlations among pollutant's type, consistency and optical brightness.

污染物质的类型、浓度与其光谱亮度值具有某种相关关系。

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Optical brightener(Optical brightness agent): Synonymous with Optical bleaching agent.

光学增光剂：即光学漂白剂。

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The technique of optical engine is the key to obtain high brightness, high definition and real colour pictures in the field of large screen projection.

在大屏幕投影显示领域，光引擎技术是获得大亮度、高影像清晰度和真实的色彩还原性图像输出的关键技术。

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Equipped with a 24mm ultra-wide angle LEICA DC VARIO-SUMMARIT lens, the LUMIX FH8 and LUMIX FH6 offer an incredible 5x optical zoom with f2.5 brightness, all while maintaining a stylish, and slim camera body.

ENGADGET: Panasonic's Lumix line gets a lot more crowded

The current 3D camera module developed by Sharp incorporates functions to process the image data output by the left and right cameras, including Color Synchronizing Processing to adjust color and brightness, Timing Synchronizing Processing to synchronize the timing of the video signals, and Optical Axis Control Processing to correct positioning.

ENGADGET: Sharp busts out world's first 3D HD camera for mobile devices