What context can I use each word in?
Learn when and how to use these words with these examples!
illuminance
Example
The illuminance of the room was too low for reading. [illuminance: noun]
Example
The illuminance of the lamp was too bright for my eyes. [illuminance: noun]
Example
The illuminance in the theater was perfect for the performance. [illuminance: noun]
luminosity
Example
The luminosity of the sun is much greater than that of a candle. [luminosity: noun]
Example
The luminosity of the star made it visible even from a great distance. [luminosity: noun]
Example
The luminosity of the screen was too high for my eyes in the dark. [luminosity: noun]
Good things to know
Which word is more common?
Illuminance and luminosity are both technical terms and are not commonly used in everyday language. However, illuminance may be more commonly used in the context of lighting design and engineering, while luminosity may be more commonly used in astronomy and physics.
Whatโs the difference in the tone of formality between illuminance and luminosity?
Both illuminance and luminosity are technical terms and are typically used in formal or technical contexts.
