Share Email Print

Proceedings Paper

Image Formation In Confocal Optical Systems
Author(s): Colin J. R. Sheppard; Tony Wilson
Format Member Price Non-Member Price
PDF $14.40 $18.00
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

Scanning image processing systems have the advantage that the image is in a form suitable for further electronic processing, and a particular class of these is the confocal scanning systems which exhibit superior imaging properties compared with conventional systems. Imaging is coherent thus allowing coherent processing to be performed with twice the spatial-frequency cut-off of a conventional processor. The point spread function is also sharper and the outer rings weak, resulting in a response to a step object without fringes. The important feature of the confocal system is that two lenses are involved in the imaging process. An arrangement in which the beam traverses the object more than once is therefore also discussed. This produces an extremely sharp point spread function and interesting optical properties.

Paper Details

Date Published: 22 August 1980
PDF: 6 pages
Proc. SPIE 0232, 1980 Intl Optical Computing Conf II, (22 August 1980); doi: 10.1117/12.958890
Show Author Affiliations
Colin J. R. Sheppard, University of Oxford (United Kingdom)
Tony Wilson, University of Oxford (United Kingdom)

Published in SPIE Proceedings Vol. 0232:
1980 Intl Optical Computing Conf II
William T. Rhodes, Editor(s)

© SPIE. Terms of Use
Back to Top