Development of robust thermo-optical thin-film membranes for the James Webb Space Telescope sunshield

John Moery

doi:10.1117/12.672343

15 June 2006 Development of robust thermo-optical thin-film membranes for the James Webb Space Telescope sunshield

John Moery

Proceedings Volume 6265, Space Telescopes and Instrumentation I: Optical, Infrared, and Millimeter; 62653B (2006) https://doi.org/10.1117/12.672343
Event: SPIE Astronomical Telescopes + Instrumentation, 2006, Orlando, Florida , United States

Abstract

The James Webb Space Telescope (JWST) observatory is the first segmented, deployed optical telescope with optical elements exposed to a space environment that will be thermally controlled to operate at cryogenic temperatures. A multilayered sunshield comprised of layers of polyimide film coated with alloyed silicon and multilayered aluminum based coatings has been developed to control the operating temperature of and minimize stray light seen by the Optical Telescope Element (OTE). The key requirements of the membrane material are to control thermal stability and steady-state thermal performance of the OTE, limit solar and infrared light transmission, meet ESD grounding requirements, have low contaminant levels, and to have highly durable, robust coatings. The testing that was done to evaluate the durability of the membrane material and to show that it will survive the fabrication, integration, test, and launch environments will be explored.

Citation Download Citation

John Moery "Development of robust thermo-optical thin-film membranes for the James Webb Space Telescope sunshield", Proc. SPIE 6265, Space Telescopes and Instrumentation I: Optical, Infrared, and Millimeter, 62653B (15 June 2006); https://doi.org/10.1117/12.672343

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