Intensity Distribution In Out-Of-Focus Images Of A Rotationally Symmetric Optical System

Steve N Wong; Robert E Parks; Lianzhen Shao

doi:10.1117/12.939594

23 March 1987 Intensity Distribution In Out-Of-Focus Images Of A Rotationally Symmetric Optical System

Steve N Wong, Robert E Parks, Lianzhen Shao

Proceedings Volume 0680, Surface Characterization and Testing; (1987) https://doi.org/10.1117/12.939594
Event: 30th Annual Technical Symposium, 1986, San Diego, United States

Abstract

A theory describing the intensity distribution in out-of-focus images of a telescope mirror is derived based on geometrical ray optics for a rotationally symmetric optical system. Surfaces at which the intensity distribution diverges are shown to be the same as the classic caustic surfaces. The contrast variations at out-of-focus positions are proportional to the square of the F-number of the system. For a large F-number system such as a telescope, the out-of-focus intensity distributions provide a sensitive method for determining zonal error distributions of the optical system.

Citation Download Citation

Steve N Wong, Robert E Parks, and Lianzhen Shao "Intensity Distribution In Out-Of-Focus Images Of A Rotationally Symmetric Optical System", Proc. SPIE 0680, Surface Characterization and Testing, (23 March 1987); https://doi.org/10.1117/12.939594

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available