luminous flux
- noun
- /ˈluːmɪnəs flʌks/
- Specialized
:
flujo luminoso
- The scientist measured the luminous flux of the new LED bulb, finding it significantly higher than traditional bulbs.
Examples
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At First Light Technologies, we have already improved our light output—both hours of illumination and brightness—by simply utilizing the latest generation of low-power-consuming, high-luminous-flux LEDs.
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In brief: According to Wikipedia, "Lux" is "the SI unit of illuminance and luminous emittance, measuring luminous flux per unit area."
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To ensure the room was well-lit, she calculated the necessary luminous flux required for adequate brightness.
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Different light sources emit varying amounts of luminous flux, which is crucial for understanding their efficiency.
Antonyms
How Bright
Surface Forms
Morphology
The phrase is directly compositional: 'luminous' means emitting light and 'flux' means a rate or flow, so together they denote the rate/flow of light energy. This follows normal noun–noun composition and has close equivalents in other languages, so a B1 learner who knows both constituents should be able to infer the meaning.
Etymology
Luminous flux comes from a simple image: luminous means 'light' and flux means 'flow', so imagine light pouring out of a lamp like water from a tap. That's why luminous flux describes how much light flows from a source each second and is measured in 'lumens'.