dioptric power
Sign in to saveAlso known as focusing power, refractive power, optical power
physical quantity
In the Vinony graph
Vinony's link graph records 91 inbound references to dioptric power, and connects out to lens, lensmeter and eye.
It is catalogued under the topic Optical quantities.
Vinony links it to 29 Wikipedia language editions.
Wikidata facts
- Subclass of
- physical quantity
Show 1 more fact
- maintained by WikiProject
- WikiProject Mathematics
Sources (2)
via Wikidata · CC0
~2 min read
Encyclopedic overview
Illustration of the relationship between optical power in dioptres and focal length in metres
In optics, optical power (also referred to as dioptric power, refractive power, focal power, focusing power, or convergence power) is the degree to which a lens, mirror, or other optical system converges or diverges light. It is equal to the reciprocal of the focal length of the device; high optical power corresponds to short focal length. The SI unit for optical power is the inverse metre (m), which is also called a dioptre (symbol: dpt or D) when used as a unit of optical power.
Excerpted from Wikipedia’s “dioptric power” article, available under the CC BY-SA 4.0 licence.