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
Yes; it is easy to understand that for the same time of exposure, and consequently for the same result, the aperture may be so much the smaller in proportion as the optical center is approached.
From Scientific American Supplement, No. 430, March 29, 1884 by Various
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
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
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