Share Email Print

Optical Engineering

Image behavior of optic positioned inside the diffractive depth of focus
Format Member Price Non-Member Price
PDF $20.00 $25.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Standard diffractive estimates based on the system f/# were at odds with geometric predictions concerning beam footprint size at a relayed pupil image plane due to an object point at infinity. The reason for this was that the relay optic was well within the defractive depth of focus of an intermediate star image. This invalidated geometric predictions for the system f/# and the location and size of the system impulse response. Accurate predictions emerged when Fourier transforms of the highly apodized planar wavefront incident on the relay optic were calculated.

Paper Details

Date Published: 1 July 1994
PDF: 9 pages
Opt. Eng. 33(7) doi: 10.1117/12.172902
Published in: Optical Engineering Volume 33, Issue 7
Show Author Affiliations
Joseph M. Geary, Swales & Associates, Inc. (United States)
Qian Gong, Swales & Associates Inc. (United States)
James C. Bremer, Swales and Associates, Inc. (United States)

© SPIE. Terms of Use
Back to Top