Definition of Diopter. Meaning of Diopter. Synonyms of Diopter

Here you will find one or more explanations in English for the word Diopter. Also in the bottom left of the page several parts of wikipedia pages related to the word Diopter and, of course, Diopter synonyms and on the right images related to the word Diopter.

Definition of Diopter

Diopter
Diopter Di*op"ter, Dioptra Di*op"tra, n. [L. dioptra, fr. Gr. ?. See 2d Dioptric.] An optical instrument, invented by Hipparchus, for taking altitudes, leveling, etc.

Meaning of Diopter from wikipedia

- A dioptre (British spelling) or diopter (American spelling) is a unit of measurement of the optical power of a lens or curved mirror, which is equal to...
- The diopter is an aperture sight component used to ****ist the aiming of devices, mainly firearms, airguns, and crossbows. It is found in particular as...
- In modern usage, diopter or dioptre is a measure of the refractive power of an optical system. Diopter may also refer to: Historically, a dioptric lens...
- rifles. To obtain a usable sighting line the diopter has to have a complementing rear sight element. Diopter and globe sighting lines are commonly used...
- length of eyeball is too short. About 1 mm decrease in axial length cause 3 diopters of hypermetropia. One condition that cause axial hypermetropia is nanophthalmos...
- 20 m (21.9 yd) increments. For low-visibility use, a reversible clip-on diopter with two self-luminous tritium-powered inserts (later carbon-14, one-side...
- to achieve the illusion of deep focus with optical tricks (split-focus diopter) or by compositing two or more images together. It is the aperture of a...
- Prescribing Prism". www.aao.org. Retrieved 2017-11-01. "the definition of prism diopter". Dictionary.com. Retrieved 2017-11-01. Jenean, Carlton (2000). Frames...
- it is designed. In old texts, the speculum may also be referred to as a diopter or dioptra. Like an endoscope, a speculum allows a view inside the body;...
- only about 1/2 + diopter on the red lens. However, some people with corrective gl****es are bothered by difference in lens diopters, as one image is a...
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