Luminous flux is a measurement of the total amount of light a light source emits, integrated over the entire angular span of the light. We quantify luminous flux in units of lumens (lm), a รขโ‚ฌยฆ Luminous flux, or luminous power, is the measure of the perceived power of light.

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Luminous flux (รฎยฆ), measured in lumens (lm), describes the total light output emitted by a light source in all directions. The luminous flux is measured with special measuring instruments or รขโ‚ฌยฆ Thus, luminous flux is a weighted average of the radiant flux in the visible spectrum. It is a weighted average because the human eye does not respond equally to all visible รขโ‚ฌยฆ Light flux is another term for luminous flux, which is a measure of the total amount of visible light emitted by a light source per unit of time. Luminous flux is typically measured in lumens (lm), รขโ‚ฌยฆ In photometry, luminous flux[1] or luminous power[2] is the measure of the perceived power of light.

Light flux is another term for luminous flux, which is a measure of the total amount of visible light emitted by a light source per unit of time. Luminous flux is typically measured in lumens (lm), รขโ‚ฌยฆ In photometry, luminous flux[1] or luminous power[2] is the measure of the perceived power of light.

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