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Proceedings Paper

Laser Interferometric Alignment Sensor For The Large Space Telescope (LST)
Author(s): Sol L. Morrison
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Paper Abstract

The Large Space Telescope(I) will have a 10-foot diameter diffraction-limited primary mirror with theoretical spatial resolving capability of .04 arcsecond in the visible light range. Its secondary mirror, approximately 3 feet in diameter, will be some 20 to 30 feet forward of the primary depending on the final optical configuration. The alignment of the secondary to the primary is critical to the performance of a diffraction-limited optical system and is an important problem area in development of the instrument. The tube structure defining the primary-secondary relationship will not be sufficiently rigid to maintain the required alignment precision in the face of thermal and mechanical disturbances. Accordingly, the secondary will be articulated relative to the structure to compensate for tube deformations.

Paper Details

Date Published: 1 September 1972
PDF: 8 pages
Proc. SPIE 0028, Instrumentation in Astronomy I, (1 September 1972); doi: 10.1117/12.953527
Show Author Affiliations
Sol L. Morrison, Grumman Aerospace Corporation (United States)


Published in SPIE Proceedings Vol. 0028:
Instrumentation in Astronomy I
Lewis Larmore; Robert W. Poindexter, Editor(s)

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