luminance
luminance
[ˈluːmɪn(ə)ns]
noun
[ˈluːmɪn(ə)ns]
noun
- [mass noun](Physics)the intensity of light emitted from a surface per unit area in a given direction
(物理)亮度
■the component of a television signal which carries information on the brightness of the image
（电视信号中的）亮度信号
- late 19th cent. (as a general term meaning 'light, brightness'): from Latin luminant- 'illuminating' (from the verb luminare) + -ance
考试词汇表
