Stray light design and analysis of the Wide-Field Infrared Explorer (WIRE)

John L. Stauder

doi:10.1117/12.279005

23 October 1997 Stray light design and analysis of the Wide-Field Infrared Explorer (WIRE)

John L. Stauder

Proceedings Volume 3122, Infrared Spaceborne Remote Sensing V; (1997) https://doi.org/10.1117/12.279005
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

The wide-field infrared explorer (WIRE) is a cryogenically cooled infrared telescope designed to study the evolution of galaxies. Presented in this paper is the stray light design and analysis of WIRE. Unwanted radiation from off-axis sources such as the moon, and thermal emissions from the aperture shade are suppressed by the use of key stray light design features. These include the placement of the aperture stop at the secondary mirror, tapering of the main baffle vanes, and use of ring baffles for the secondary obscuration and outer ring. Details concerning the issues of baffle design, mirror scatter, and non-optical component scatter are provided. The point source transmission (PST) curve, which characterizes the sensor's off-axis response, and the aperture shade thermal contribution were computed using the stray light analysis program APART. The results indicate that the stray light impact on the WIRE mission is minimal.

Citation Download Citation

John L. Stauder "Stray light design and analysis of the Wide-Field Infrared Explorer (WIRE)", Proc. SPIE 3122, Infrared Spaceborne Remote Sensing V, (23 October 1997); https://doi.org/10.1117/12.279005

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