Luminance distribution on an emitting surface of a backlight unit .

背光系统发光面的亮度分布。

At the same time , the array of three values simplifies the complexity in the image , so even if a video is of poor quality or a different hue , the information about its relative luminance is retained .

同时，三种数值的排列简化了图片的复杂性，所以即使一个视频质量差或色相不一，关于视频的相对亮度信息还能保留。

The researchers found that luminance exceeded recommended levels in 88 per cent of the classrooms they investigated .

研究者们发现有88%的被调查教室光照强度超过了推荐水平。

Lowest luminance of a stimulus which enables it to be perceived .

能够被感知的最小亮度。

Results showed that ambient illumination and background luminance were significantly affected visual performance .

结果显示环境照明与背景亮度二个因素对视觉绩效的影响达到显著水准。