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
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dioptre::noun | Spocien Dictionary
| Type | Words |
|---|---|
| Synonyms | diopter |
| Type of | unit, unit of measurement |
Examples of dioptre
dioptre
The dioptre can also be used as a measurement of curvature equal to the reciprocal of the radius measured in metres.
From the en.wikipedia.org
Thus a thin 2-dioptre lens placed close to a thin 0.5-dioptre lens yields almost the same focal length as a 2.5-dioptre lens would have.
From the en.wikipedia.org
As humans age, the amplitude of accommodation reduces from approximately 15 to 20 dioptres in the very young, to about 10 dioptres at age 25, to around 1 dioptre at 50 and over.
From the en.wikipedia.org
