source of illumination

collocation in English

meaningsofsourceandillumination

These words are often used together. Click on the links below to explore the meanings. Or,see other collocations withsource.
source
noun[C]
uk
/sɔːs/us
/sɔːrs/
the place something comes from or starts at, or the cause ...
See more atsource
illumination
noun
uk
/ɪˌluː.mɪˈneɪ.ʃən/us
/ɪˌluː.məˈneɪ.ʃən/
light:
See more atillumination

(Definition ofsourceandilluminationfrom theCambridge English Dictionary© Cambridge University Press)

Examplesofsource of illumination

These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
All the experiments took place in a quiet dark room, in which the onlysourceofilluminationcame from the monitor.
From theCambridge English Corpus
The above series of experiments were repeated employing electric light as thesourceofillumination.
From theCambridge English Corpus
As a result of that very heavy increase many of my constituents are compelled to use candles as asourceofilluminationin their homes.
From the
Hansard archive
Example from the Hansard archive. Contains Parliamentary information licensed under theOpen Parliament Licence v3.0
Averaged measurements of pigment samples will only yield approximations of their true appearance under a specificsourceofillumination.
From
Wikipedia
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Later wax candles made from various plant extracts replaced tallow as the preferredsourceofillumination.
From
Wikipedia
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These effects are apparent in natural light photography where the principalsourceofilluminationis sunlight as mediated by the atmosphere.
From
Wikipedia
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They detect thermal radiation and do not need asourceofillumination.
From
Wikipedia
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Thus, magnesium powder (flash powder) was used as asourceofilluminationin the early days of photography.
From
Wikipedia
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This phenomenon usually occurs at night, when thesourceofilluminationwithin a building is fluorescent lighting.
From
Wikipedia
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Depending on location, growers can utilise natural sunlight as asourceofillumination.
From
Wikipedia
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Although electric lights were by then widely available, none were yet powerful enough to adequately expose film; the bestsourceofilluminationfor motion picture production was natural sunlight.
From
Wikipedia
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This is most likely because historically there has not been a large market specifically for full cutoff fixtures, and because people typically like to see thesourceofillumination.
From
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.
Qualcomm's mirasol displays use ambient light as theirsourceofilluminationand consume almost no power when the image is unchanged.
From
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.
Fluorescent lighting systems are the most prevalent sources of illumination in schools.
From
Wikipedia
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Ultimately, other sources of illumination will have to be put to use, such as electron beams, x-rays or similar sources of electromagnetic energy with wavelengths much shorter than visible light.
From
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.
Passive radars do not transmit waves and instead, detect and track objects by processing reflections from non-cooperative sources of illumination in the environment, such as commercial broadcast and communications signals.
From
Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
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