Lens clock
id:
lens-clock-257-4986503
title:
Lens clock
text:
A lens clock is a mechanical dial indicator that is used to measure the dioptric power of a lens. It is a specialized version of a spherometer. A lens clock measures the curvature of a surface, but gives the result as an optical power in diopters, assuming the lens is made of a material with a particular refractive index.
brand slug:
wiki
category slug:
encyclopedia
description:
Mechanical device for measuring lenses
original url:
https://en.wikipedia.org/wiki/Lens_clock
date created:
date modified:
2024-02-04T22:34:59Z
main entity:
{"identifier":"Q17096631","url":"https://www.wikidata.org/entity/Q17096631"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/4/45/Lens_Clock.jpg","width":874,"height":681}
fields total:
13
integrity:
15