depth magnification

depth magnification

[′depth ‚mag·nə·fə′kā·shən]
(optics)
The ratio of the distance between two nearby points of the axis on the image side of an optical system to the distance between their conjugate points on the object side.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.