학술논문

Optical Modeling of the Alignment and Test of the NASA James Webb Space Telescope
Document Type
Conference
Source
2007 IEEE Aerospace Conference Aerospace Conference, 2007 IEEE. :1-6 Mar, 2007
Subject
Aerospace
Components, Circuits, Devices and Systems
Communication, Networking and Broadcast Technologies
Fields, Waves and Electromagnetics
Testing
NASA
Telescopes
Mirrors
Optical interferometry
Biomedical optical imaging
Optical sensors
Gravity
Optical surface waves
Image segmentation
Language
ISSN
1095-323X
Abstract
Optical modeling challenges of the ground alignment plan and optical test and verification of the NASA James Webb Space Telescope are discussed. Issues such as back-out of the gravity sag of light-weighted mirrors, as well as the use of a sparse-aperture auto-collimating flat system are discussed. A walk-through of the interferometer based alignment procedure is summarized, and sensitivities from the sparse aperture wavefront test are included as examples.