GUERAP III Simulation Of Stray Light Phenomena

Sherman S. Steadman; Barry K. Likeness

doi:10.1117/12.964601

26 September 1977 GUERAP III Simulation Of Stray Light Phenomena

Sherman S. Steadman, Barry K. Likeness

Proceedings Volume 0107, Stray Light Problems in Optical Systems; (1977) https://doi.org/10.1117/12.964601
Event: 1977 SPIE/SPSE Technical Symposium East, 1977, Reston, United States

Abstract

The GUERAP III Monte Carlo simulation method traces the paths of statistical samples (rays) of energy flux as they interact with the surfaces of an optical system. To determine ray path interceptions, the surfaces are represented by analytical equations that define the surfaces and their boundaries. The result of each surface interaction is determined by probability distributions characterizing the optical properties of each surface. Property models include emission, absorption, reflection, and transmission (which includes refraction and diffraction). The semiempirical diffraction model assumes an angular probability density function of the distance of the ray from the edge of the aperture. The general surface equation and radiation model utilized permits analysis of complex visible and infrared systems with reflective and/or refractive elements. Although the program was written primarily for off-axis rejection analyses, it can also be used as a general on-axis ray tracing program for determination of such things as image quality and optical efficiency, including in a very natural way the effects of field of view, aberrations, obscurations, vignetting, diffraction, etc. In the off-axis mode the program is used for analySis of system sensitivity to scattering and diffraction, determination of the effectiveness of exterior and interior baffling mechanizations, and the identification of unwanted multipath ghost images.

Citation Download Citation

Sherman S. Steadman and Barry K. Likeness "GUERAP III Simulation Of Stray Light Phenomena", Proc. SPIE 0107, Stray Light Problems in Optical Systems, (26 September 1977); https://doi.org/10.1117/12.964601

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