dioptric
Americanadjective
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Optics. pertaining to dioptrics.
dioptric images.
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Optics, Ophthalmology. noting or pertaining to refraction or refracted light.
adjective
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of or concerned with dioptrics
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of or denoting refraction or refracted light
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Relating to the refraction of light, especially by a lens. Dioptric lenses are used in Fresnel lenses and camera viewfinders.
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Compare catadioptric catoptric
Other Word Forms
- dioptrically adverb
Etymology
Origin of dioptric
From the Greek word dioptrikós, dating back to 1625–35. See diopter, -ic
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
It is the most powerful oil light in the world, the flash being over 145,000 candle power emitted from a pair of dioptric lenses mounted on a mercury float revolving once every ten seconds.
From Scientific American Supplement, No. 1082, September 26, 1896 by Various
The light is of the dioptric kind—bright, steady, and uniform, and when the weather is too foggy to allow it to be seen, a bell is tolled by machinery, to give the needful warning.
From The Sea: Its Stirring Story of Adventure, Peril, & Heroism. Volume 2 by Whymper, Frederick
It is true that the dioptric apparatus was perfected independently by Fresnel, who had also the satisfaction of being the first to put it into operation.
From Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" by Various
There is no dioptric apparatus in Nautilus, and in place of refracting lens and cornea we have actually here an arrangement for forming an image on the principle of “the pin-hole camera.”
From Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" by Various
It consists of alternate and opposite sectors of dioptric spherical mirror, MM, and of Fresnel’s fixed light apparatus, AA.
From The Works of Robert Louis Stevenson - Swanston Edition Vol. XXII (of 25) Juvenilia and Other Papers by Stevenson, Robert Louis
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
