The unit of measurement of the deviation of light in passing through a prism, being a deflection of 1 cm at a distance of 1 m. ... (05 Mar 2000) ...
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http://www.encyclo.co.uk/local/20973
(p.d.) Type: Term Definitions: 1. the unit of measurement of the deviation of light in passing through a prism, being a deflection of 1 cm at a distance of 1 m.
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http://www.medilexicon.com/medicaldictionary.php?t=24994
a unit of prismatic deviation, in which the number one represents a prism that deflects a beam of light a distance of one centimeter on a plane placed normal to the initial direction of the beam and one meter away from the prism.
Found on
https://www.infoplease.com/dictionary/prism-diopter
No exact match found.
