optical center
Americannoun
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Scientists believe high-energy cosmic rays impacting on the eye's retina or the brain's optical center cause the flashes.
From Time Magazine Archive
A method was then referred to of making a rapid portrait lens cover a very large angle by pivoting at its optical center and traversing the plate in the manner of the pantoscopic camera.
From Scientific American Supplement, No. 415, December 15, 1883 by Various
It is assumed that the photographer knows exactly what the focus of his lens is, and that he is able to measure accurately from its optical center.
From Bromide Printing and Enlarging A Practical Guide to the Making of Bromide Prints by Contact and Bromide Enlarging by Daylight and Artificial Light, With the Toning of Bromide Prints and Enlargements by John A. Tennant
Upon placing the guillotine shutter in the optical center of the objective, what will occur?
From Scientific American Supplement, No. 430, March 29, 1884 by Various
The ratio of the apertures that give the same results at the optical center or behind the objective is as that of the diaphragm employed to that of the back lens.
From Scientific American Supplement, No. 430, March 29, 1884 by Various
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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
