Explore Illuminance through 3 example sentences from English, with an explanation of the meaning and related words like illumination or luminosity. Ideal for language learners, writers and word enthusiasts.
Illuminance in a sentence
Illuminance meaning
The luminous flux incident on unit area of a surface; commonly measured in lux (lumen/metre²) or otherwise foot-candles. The illuminance of a star upon the earth is frequently measured on a negative logarithmic scale referred to as its apparent magnitude, which see.
Synonyms of Illuminance
Using Illuminance
- The main meaning on this page is: The luminous flux incident on unit area of a surface; commonly measured in lux (lumen/metre²) or otherwise foot-candles. The illuminance of a star upon the earth is frequently measured on a negative logarithmic scale referred to as its apparent magnitude, which see.
- Useful related words include: illumination, luminosity, brightness, brightness level.
Context around Illuminance
- Average sentence length in these examples: 30.3 words
- Position in the sentence: 1 start, 0 middle, 2 end
- Sentence types: 3 statements, 0 questions, 0 exclamations
Corpus analysis for Illuminance
- In this selection, "illuminance" usually appears near the end of the sentence. The average example has 30.3 words, and this corpus slice is mostly made up of statements.
- Around the word, required, image, vary and ray stand out and add context to how "illuminance" is used.
- Recognizable usage signals include i e illuminance in lm and same image illuminance ray 2002. That gives this page its own corpus information beyond isolated example sentences.
- By corpus frequency, "illuminance" sits close to words such as aaaaand, aaah and aacl, which helps place it inside the broader word index.
Example types with illuminance
The same corpus examples are grouped by length and sentence type, making it easier to see the contexts in which the word appears:
What gets directly measured by a light meter is incident light on a sensor of finite area, i.e. illuminance in lm/m 2 (lux). (25 words)
Both the PRC and the required illuminance vary from species to species and lower light levels are required to reset the clocks in nocturnal rodents than in humans. (28 words)
Use of absolute aperture diameter The aperture diameter is normally given in terms of the f-number because all lenses set to the same f-number give approximately the same image illuminance (Ray 2002, 130), simplifying exposure settings. (38 words)
Use of absolute aperture diameter The aperture diameter is normally given in terms of the f-number because all lenses set to the same f-number give approximately the same image illuminance (Ray 2002, 130), simplifying exposure settings. (38 words)
Both the PRC and the required illuminance vary from species to species and lower light levels are required to reset the clocks in nocturnal rodents than in humans. (28 words)
What gets directly measured by a light meter is incident light on a sensor of finite area, i.e. illuminance in lm/m 2 (lux). (25 words)
Example sentences (3)
Both the PRC and the required illuminance vary from species to species and lower light levels are required to reset the clocks in nocturnal rodents than in humans.
Use of absolute aperture diameter The aperture diameter is normally given in terms of the f-number because all lenses set to the same f-number give approximately the same image illuminance (Ray 2002, 130), simplifying exposure settings.
What gets directly measured by a light meter is incident light on a sensor of finite area, i.e. illuminance in lm/m 2 (lux).