亮度 Luminance
（重定向自Photometric brightness）
亮度（luminance）是表示人眼对发光体或被照射物体表面的发光或反射光强度实际感受的物理量，亮度和光强这两个量在一般的日常用语中往往被混淆使用。简而言之，当任两个物体表面在照相时被拍摄出的最终结果是一样亮、或被眼睛看起来两个表面一样亮，它们就是亮度相同。
国际单位制中规定，亮度的符号是L，单位为尼特。
Photometric brightness
中文百科
英语百科
Luminance 亮度
（重定向自Photometric brightness）
Luminance is a photometric measure of the luminous intensity per unit area of light travelling in a given direction. It describes the amount of light that passes through, is emitted or reflected from a particular area, and falls within a given solid angle. The SI unit for luminance is candela per square metre (cd/m). A non-SI term for the same unit is the "nit". The CGS unit of luminance is the stilb, which is equal to one candela per square centimetre or 10 kcd/m.
- covered refrigerator dish的意思
- covered reserve的意思
- covered reservoir的意思
- covered roll的意思
- covered rubber thread的意思
- covered rubber yarn的意思
- covered sauce pan的意思
- covered shed的意思
- covered sludge drying bed的意思
- Covered smut的意思
- covered smut of barley的意思
- covered smuts的意思
- covered space的意思
- covered stadium的意思
- covered stadiums的意思
- covered stand的意思
- covered stands的意思
- covered stnet的意思
- covered storage的意思
- Covered Straddle Write的意思
- covered structure的意思
- covered sugar bowl的意思
- covered surge tank的意思
- covered sweets的意思
- covered tail recursion的意思