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Principal point

 - 3 dictionary results

principal point

 
Use Principal point in a Sentence
–noun Optics.
the point where a principal plane intersects the axis.
Origin:
1695–1705
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Medical Dictionary

Main Entry: principal point
Function: noun
: either of two points on the principal axis of a lens where the object and image have the same size and are not inverted inrelation to each other
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

principal point n.
One of the two points in an optical system where the axis is cut by the two principal planes. Lines drawn from these to corresponding points on the object and the image will be parallel.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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