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Bookmark or Share- Illuminance - WikipediaIn photometry, illuminance is the total luminous flux incident on a surface, per unit area. [1] It is a measure of how much the incident light illuminates the surface, wavelength-weighted by the luminosity function to correlate with human brightness perception. [2]
- Luminance vs. Illuminance: What’s the Difference? - HunterLabWhat Is Illuminance? In a single sentence, the illuminance formula means how much luminous flux is spread over an area — it is the intensity of light falling onto a surface. Illuminance is a concept of photometry, represented by the amount of light received on a surface.
- Luminance: Definition, Formula, Unit, and ApplicationLuminance. Luminance measures the amount of light emitted, passed through, or reflected from a particular area. It indicates how bright a surface will appear to the human eye. It is closely tied to a surface’s physical characteristics and is essential because it affects how we see and understand the world.
- Understanding Illuminance: What’s in a Lux? - All About CircuitsWe now know enough to formulate a concise definition for illuminance: the perceived level of ambient brightness, taking into account the objective light intensity and the spectral response of the human eye.
- Photometry: The Answer to How Light Is Perceived - PhotonicsIlluminance is measured whenever the light level at a particular surface has to be specified. For example, these measurements are required to characterize the light falling on a projector screen or to design light fixtures in a building.
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