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dioptric

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dioptric
dioptric, a. and n. (daɪˈɒptrɪk) [mod. ad. Gr. διοπτρικ-ός of or pertaining to the use of the δίοπτρα (diopter); in neuter pl. διοπτρικά as n., the science of dioptrics. See -ic, -ics.] A. adj. † 1. Of the nature of, or pertaining to, a diopter (sense 1). Obs.1635 N. Carpenter Geog. Del. i. v. 107 T... Oxford English Dictionary
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Dioptric correction
Dioptric correction is the expression for the adjustment of the optical instrument to the varying visual acuity of a person's eyes. wikipedia.org
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Diopter (disambiguation)
Diopter may also refer to: Historically, a dioptric lens Any lens system, such as a telescope A diopter sight A close-up lens used in photography A theodolite wikipedia.org
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dioptral
† diˈoptral, a. Obs. [f. L. dioptra diopter + -al1.] = dioptric a.1610 W. Folkingham Art of Survey ii. ii. 50 Degrees of angular production obserued by some Dioptrall instrument. Oxford English Dictionary
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dioptrical
diˈoptrical, a. [f. as prec. + -al1.] † 1. = dioptric a. 1. Obs.1612 Brerewood Lang. & Relig. xiii. 134 Of which height..it is observed in Pliny, that Dicæarchus, by dioptrical instruments, found the hill Pelius..to be. 1656 Blount Glossogr., Dioptrical, pertaining to Dioptra. 2. = dioptric a. 2, 3.... Oxford English Dictionary
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Dioptrics
Telescopes that create their image with an objective that is a convex lens (refractors) are said to be "dioptric" telescopes. wikipedia.org
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dioptrician
dioptrician rare. (daɪɒpˈtrɪʃən) [f. dioptric; cf. optician.] One skilled in dioptrics.1670 Phil. Trans. V. 2045 An Un-usual kind of Refraction, hitherto un-observed by Dioptricians. Oxford English Dictionary
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dioptrics
dioptrics see dioptric B 3. Oxford English Dictionary
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Thermal blooming
interactions that occur when the medium (e.g. air or glass) is heated by absorbing a fraction of the radiation, causing a "thermal lens" to form, with a dioptric wikipedia.org
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dioptic
† diˈoptic, a. and n. Obs. [f. Gr. δι-, δια- through + ὀπτικ-ός of or pertaining to sight or vision, f. root ὀπ- to see.] A. adj. = dioptric. Also diˈoptical.1656 Blount Glossogr., The Dioptick Art, the Perspective Art, or that part of Astronomy, which by Quadrants and hollow instruments pierces the... Oxford English Dictionary
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Osmussaar Lighthouse
In 1850 a new stone lighthouse was built and equipped with a dioptric Fresnel lighting device in 1875. wikipedia.org
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catadioptric
catadioptric, a. (ˌkætədaɪˈɒptrɪk) [f. cata- in catoptric + dioptric. Cf. F. catadioptrique.] Pertaining to or involving both the reflexion and the refraction of light.1723 Hadley in Phil. Trans. (title), An Account of the Catadioptric or Reflecting Telescope, made by him. 1759 Gentl. Mag. 72 Mr. Do... Oxford English Dictionary
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光学倍率
光学倍率（Optical power）又称折光率、屈光率、屈光力（眼科）（refractive power, dioptric power），是透镜或曲面镜汇聚或发散光线的程度，等于设备焦距的倒数：，与焦距负相关。高光学倍率对应于短焦距。 wikipedia.org
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Keratometer
Bausch and Lomb principles The Bausch and Lomb Keratometer is a one position keratometer that gives readings in dioptric form. In converting the measurements obtained from the corneal surface into a dioptric value, the B&L keratometer uses the general lens formula (n’-n)/R and wikipedia.org
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Cape D'Aguilar Lighthouse
The light was a fixed dioptric first order Fresnel lens, emitting a white light on a focal plane of above sea level, that could be seen in clear weather wikipedia.org
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