light unit
- noun
- /laɪt ˈjunɪt/
- Specialized
:
unidad de luz
- To measure the brightness of the new bulb, we used a special light unit called a lumen meter.
Examples
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Light conditions were set using the LCpro+ light unit, which emitted photosynthetically active radiation (PAR) at 1000 mol * m-2 * s-1.
Academic text (2013) -
Five Speedotron 102 light units, powered by a 2400 watt second power pack, were used to design the light seen in the photographs accompanying this article.
Academic text (2003) -
Though sometimes in an interview set up, it might be better to have a light unit farther away from the subject than the flex fill.
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At the time of this writing, a fluorescent black light unit completely assembled with screws and instructions for mounting is available by mail order from Edmund Scientific.
Academic text (1993) -
The photographer adjusted the light unit to ensure optimal lighting for the portrait shoot.
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Each light unit in the laboratory is calibrated to provide accurate readings of light intensity.
Synonyms
4
8.7
A unit that measures how much light falls on a surface
4
7.5
A measure of how much light a lamp or bulb gives
1
9.2
A measure of how much light a bulb or lamp gives
1
9.9
A unit that measures how bright a screen or surface is
1
9.9
A measure of how bright a light is in one direction
1
6.5
A unit used to measure the brightness of a light source
1
9.9
A unit for measuring how bright a surface is, equal to one lumen per square centimeter
A unit for measuring how bright a light appears in one direction
A unit for measuring how bright a light is, using a candle as the standard
A unit that measures the visible light a lamp or bulb gives
A unit that measures how much light falls on a surface
A measure of how much light falls on a surface, for example the lux
A measure of how bright a surface appears
A unit of brightness used to measure light
A unit for measuring how bright a surface is
Surface Forms
Morphology
The meaning is directly and transparently derived from combining 'light' (visible electromagnetic brightness) with 'unit' (a measure), forming a noun–noun compound that denotes a measure for light. This compositional pattern (e.g., 'time unit', 'length unit') is common cross-linguistically and should be immediately understandable to a B1 learner who knows both constituents.
Etymology
The noun light unit comes from joining light and unit and the simple idea of a measuring piece for light. Think of a ruler for length or a cup for liquid — a unit for light is a fixed amount used to 'measure how bright something is'.