Word
luminance
亮度
核心释义
the quality of being luminous; emitting or reflecting light
- 1.
发光的性质
The quality of being luminous.
- 2.
通过、发射或反射自特定区域并落在给定立体角内的光量
The amount of light that passes through, is emitted, or is reflected from a particular area, and falls within a given solid angle.
- 3.
给定方向上的发光通量除以该方向垂直投影面积与包含该方向的立体角之积(即单位面积发光强度),单位为熙提或阿波熙提
The luminous flux emitted in a given direction divided by the product of the projected area of the source element perpendicular to the direction and the solid angle containing that direction (i.e. luminous intensity divided by unit area), measured in stilbs or apostilbs.
发光的性质；通过、发射或反射自特定区域并落在给定立体角内的光量；给定方向上的发光通量除以该方向垂直投影面积与包含该方向的立体角之积(即单位面积发光强度),单位为熙提或阿波熙提；亮度；[计] 亮度
用法In use
The luminance of this computer screen can be adjusted to reduce eye strain.
用法提示：名词luminance在此表示屏幕的明亮程度。
Photographers often measure the luminance of a scene to set the correct exposure.
用法提示：名词luminance在此指场景的光线强度。
High luminance in the room makes it easier to read small print.
用法提示：名词luminance指环境的明亮水平。
the luminance of [sth]
The luminance of the screen is adjustable.
屏幕的亮度是可调节的。
[adj] luminance
相关词与表达Connections
易混词Confusing words
- illuminance
- 照度 · luminance 指物体表面发出的亮度，而 illuminance 指照射到物体表面的光照强度。
- luminescence
- 发光 · luminance 是反射或发出的光亮度，而 luminescence 特指不发热的冷光发射。
词族Word family
- luminances
- plural
学习提示Learner notes
一起学习词形Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.