dioptric

American  

[dahy-op-trik] / daɪˈɒp trɪk /

Also dioptrical

adjective

1. Optics. pertaining to dioptrics.

   dioptric images.

2. Optics, Ophthalmology. noting or pertaining to refraction or refracted light.

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dioptric British  

/ daɪˈɒptrɪk /

adjective

1. of or concerned with dioptrics

2. of or denoting refraction or refracted light

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dioptric Scientific  

/ dī-ŏp′trĭk /

1. Relating to the refraction of light, especially by a lens. Dioptric lenses are used in Fresnel lenses and camera viewfinders.

2. Compare catadioptric catoptric

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Other Word Forms

• dioptrically adverb

Etymology

Origin of dioptric

From the Greek word dioptrikós, dating back to 1625–35. See diopter, -ic

Example Sentences

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 Trinity-House of London followed next in adopting the improved system, and a revolving dioptric light of the first order was erected at the Star Point in Devonshire.

From Smeaton and Lighthouses A Popular Biography, with an Historical Introduction and Sequel by Smeaton, John

The light is a dioptric or lens-light of the first order.

From A Yacht Voyage Round England by Kingston, William Henry Giles

Ramsden’s dioptric micrometer consists of a divided lens placed in the conjugate focus of the innermost lens of the erecting eye-tube of a terrestrial telescope.

From Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" by Various

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