Abstract
The response of a defocused aberration-free optical system to line-frequencies in the object is studied analytically. Curves are given showing the response as a function of line-frequency for a range of values of defect of focus. A comparison is made with the results to be expected from geometrical optics. A tolerance for defect of focus is obtained, which accords well with published experimental results. Both circular and rectangular apertures are considered.
Dates
Type | When |
---|---|
Created | 18 years, 8 months ago (Dec. 18, 2006, 5:53 p.m.) |
Deposited | 4 years, 6 months ago (Feb. 20, 2021, 11:09 p.m.) |
Indexed | 1 month, 1 week ago (July 27, 2025, 3:50 a.m.) |
Issued | 70 years, 1 month ago (July 19, 1955) |
Published | 70 years, 1 month ago (July 19, 1955) |
Published Online | 28 years, 8 months ago (Jan. 1, 1997) |
Published Print | 70 years, 1 month ago (July 19, 1955) |
@article{1955, volume={231}, ISSN={2053-9169}, url={http://dx.doi.org/10.1098/rspa.1955.0158}, DOI={10.1098/rspa.1955.0158}, number={1184}, journal={Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences}, publisher={The Royal Society}, year={1955}, month=jul, pages={91–103} }