radiance
1
6.8
- noun
- /ˈreɪdiəns/
- Specialized
:
radiancia
- Inside, a tactical grid's radiance washed the walls with color; the lights overhead were pale and pitiless.
- measured radiance
- reflected radiance
But we will talk about it next week that we have also super radiance in extended samples.
- But we will talk about it next week that we have also super radiance in extended samples.
Examples
-
Spencer's paper looked at Earth's radiance to space compared to what the "computer models" have estimated.
Blog text (21) -
Illumination was provided by long glowing silvery bars that looked to be hovering at an uncertain distance overhead, their radiance too feeble to provide any real perspective.
Fiction book (2001) -
Can you not point some instrument at the sun and measure its radiance directly?
Blog text (9) -
Even the sun, with its ongoing radiance, can grow dull.
Fiction book (1990) -
Starlight filled the library with a dim radiance.
Fiction book (1992) -
The sensor measures emitted and reflected radiance from the Earth in three spectral bands.
Academic text (2000) -
The ambient light increases the apparent radiance from the object and the background equally, thus effectively reducing the object's apparent contrast.
Academic text (2011) -
The light flowed over these hills, touching their summits with reflected radiance; the river running alongside the road glittered and sparkled; and the sky, skimming with clouds, was infinite.
Fiction book (1990) -
The sensor measures the radiance emitted by the surface of the Earth during the day.
-
Astronomers study the radiance of stars to understand their composition and distance.
Synonyms
41
1.0
How much light something gives or how close it looks to white
4
7.3
How much light an object gives or reflects
1
7.1
The brightness of a surface as seen by the eye
1
8.9
Bright, strong light that shines from something like the sun or a diamond
How bright something is because it gives or reflects light
Surface Forms
Morphology
radiance = radiant (semi-transparent) = radi + ance
Morphologically the word is the same nominalization of 'radiant'/'radiate', but this sense is a technical measurement in radiometry requiring domain knowledge beyond everyday meaning.
Etymology
Radiance in science also comes from the Latin radius ('ray') and the common word radiate. It means how much light or energy 'rays' come from or reach a surface, so scientists use it to talk about the brightness or energy given off.