| dioptre |
diopter: a unit of measurement of the refractive power of a lens which is equal to the reciprocal of the focal length measured in meters; used by oculists
출처: wordnet.princeton.edu/perl/webwn
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| dioptre |
Unit that measures the refractive (light-bending) power of a lens; eyecare practitioners use it in eyeglass and contact lens prescriptions. A negative number refers to nearsightedness, while a positive number refers to farsightedness. For example, someone with -8.00 dioptre lenses is very nearsighted, while someone with +0.75 dioptre lenses is only slightly farsighted
출처: www.contamac.com/db/display/glossary
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| dioptre |
Unit used to measure the power of a lens in measures of .25.
출처: www.spectacleworld.co.za/eyecare04.htm
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