retroreflector
- noun
- /ˌrɛtroʊrɪˈflɛktər/
- Specialized
- So in one sense, you can say that the back of this retroreflector represents the corner of a cube, right?
Examples
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Astronomers use retroreflectors to accurately measure the distance between the Earth and the Moon.
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The retroreflectors have paid enormous scientific dividends with respect to metrology, and the returned rocks were also great for the rock jocks.
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Aren't the retroreflector arrays we left behind considerable evidence that we left something up there?
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In the example photo of retroreflectors, you were using a manual exposure mode and maybe a manual flash power.
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In any sort of auto exposure (Tv, Av, P, A), the pre-flash on modern cameras would be affected by the retroreflector.
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The traffic safety engineer recommended installing retroreflectors on the road to improve visibility at night.
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By bouncing lasers off retroreflectors, scientists can gather precise data for their experiments.
Synonyms
A thing that sends light or heat back so it goes another way
How Reflective
Surface Forms
Morphology
Etymology
Retroreflector joins the part retro-, which means 'back', with reflect as in the common word reflector, which means 'to send light back'. So a retroreflector is a device that returns light toward the place it came from.