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

The tower was built, I believe, by Queen Adelaide, and it contains a fine dioptric apparatus of the first order, constructed by Messrs. Chance, of Birmingham.

From Fragments of science, V. 1-2 by Tyndall, John

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

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

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

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

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