Title :
The mechanical design of a kinematic mount for the Mid Infrared Instrument Focal Plane Module on the James Webb Space Telescope
Author :
Thelen, Michael P. ; Moore, Donald M.
Author_Institution :
Jet Propulsion Lab., California Inst. of Technolgy, Pasadena, CA
Abstract :
The detector assembly for the Mid Infrared Instrument (MIRI) of the James Webb Space Telescope (JWST) is mechanically supported in the focal plane module (FPM) assembly with an efficient hexapod design. The kinematic mount design allows for precision adjustment of the detector boresight to assembly alignment fiducials and maintains optical alignment requirements during flight conditions of launch and cryogenic operations below 7 Kelvin. This kinematic mounting technique is able to be implemented in a variety of optical-mechanical designs and is capable of micron level adjustment control and stability over wide dynamic and temperature ranges.
Keywords :
aerospace instrumentation; astronomical telescopes; design engineering; focal planes; infrared detectors; mountings; optical design techniques; optical instruments; James Webb space telescope; cryogenic operation; detector assembly; focal plane module; hexapod design; kinematic mount; launch operation; micron level adjustment control; mid-infrared instrument; optical alignment; optical-mechanical designs; Assembly; Cryogenics; Infrared detectors; Instruments; Kelvin; Kinematics; Optical control; Optical design; Optical design techniques; Telescopes;
Conference_Titel :
Aerospace conference, 2009 IEEE
Conference_Location :
Big Sky, MT
Print_ISBN :
978-1-4244-2621-8
Electronic_ISBN :
978-1-4244-2622-5
DOI :
10.1109/AERO.2009.4839437
