Share Email Print

Proceedings Paper

Strehi Ratio For Square Segments Of A Parabolic Mirror.
Author(s): James W. Scholl; Marija S Scholl
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

The need for increasingly larger diameter mirrors is met by using segments to build up a large mirror surface. The segmentation of the mirror surface results in the deterioration of its optical properties, most notably those caused by the diffraction effects. The presence of the segments also introduces the additional complexity in the mirror assembly and alignment procedure. A precise segment alignment is based on the optimization of the Strehl ratio for the segment using a laser beam. An expression for the Strehl ratio for an off-axis square parabolic segment is obtained. It is shown that a segmented mirror is most effectively utilized in an optical system with a large F-number.

Paper Details

Date Published: 29 January 1989
PDF: 8 pages
Proc. SPIE 0966, Advances in Fabrication and Metrology for Optics and Large Optics, (29 January 1989); doi: 10.1117/12.948071
Show Author Affiliations
James W. Scholl, Alenka Associates (United States)
Marija S Scholl, California Institute of Technology (United States)

Published in SPIE Proceedings Vol. 0966:
Advances in Fabrication and Metrology for Optics and Large Optics
Jones B. Arnold; Robert E. Parks, Editor(s)

© SPIE. Terms of Use
Back to Top