a point about ten percent above the exact center of a printed page or layout.
- Also called optic center.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use optical center in a sentence
Upon placing the guillotine shutter in the optical center of the objective, what will occur?
The intersection of this last line with the principal axis will give the optical center.Visual Signaling | Signal Corps United States Army