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Definition 2024
diopter
diopter
See also: Diopter
English
Alternative forms
Noun
diopter (plural diopters)
- A unit of measure of the power of a lens or mirror, equal to the reciprocal of its focal length in meters. Myopia is diagnosed and measured in diopters.
- (obsolete) Any lens system, such as a telescope.
- (obsolete) A theodolite or similar surveyor’s angle measuring device.
- (obsolete) An alidade.
- (obsolete) A surgical speculum.
- (obsolete) An instrument for drawing the skull by projections.
Translations
unit of measure
lens system
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theodolite
|
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alidide — see alidide
speculum — see speculum
instrument for drawing skull