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Dioptre

A dioptre (British spelling) or diopter (American spelling), symbol dpt or D, is a unit of measurement with dimension of reciprocal length, equivalent to one reciprocal metre, 1 dpt = 1 m−1. It is normally used to express the optical power of a lens or curved mirror, which is a physical quantity equal to the reciprocal of the focal length, expressed in…

Measurement, In vision correction & Overview

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SI units
1 m−1
Symbol
dpt, D
Unit of
optical power

Topics to explore

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Overview

Name, symbol

In vision correction

Curvature

Relation to magnifying power

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Map overview Semantic statistics

Dioptre

Nodes62
Edges61
Triples18
Avg. degree1.97
Density0.032258
Components1

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Dioptre

Top relations

related to In vision correction · 5
Dioptre → In, Optical, The, This, Thus
related to Name, symbol · 5
Dioptre → DIN, However, In, SI-metric, Though
related to Curvature · 3
Dioptre → For, If, The
see also · 2
Dioptre → AstigmatismDioptricsLens, Prism
SI units · 1
Dioptre → 1 m−1
Symbol · 1
Dioptre → dpt, D
Unit of · 1
Dioptre → optical power

Important terminology Word statistics

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Important terminology

power optical lens dioptres length lenses used focal reciprocal curvature symbol eye approximately metre close thin also metres unit distance

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
DioptreSI units1 m−11.00infobox
DioptreSymboldpt, D1.00infobox
DioptreUnit ofoptical power1.00infobox
Dioptrerelated to CurvatureThe0.60section
Dioptrerelated to CurvatureFor0.60section
Dioptrerelated to CurvatureIf0.60section
Dioptrerelated to In vision correctionThe0.60section
Dioptrerelated to In vision correctionOptical0.60section
Dioptrerelated to In vision correctionThus0.60section
Dioptrerelated to In vision correctionThis0.60section
Dioptrerelated to In vision correctionIn0.60section
Dioptrerelated to Name, symbolThough0.60section

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    Min side: 3
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