CFRP composites for optics and structures in telescope applications

Details CFRP composites for optics and structures in telescope applications CFRP composites for optics and structures in telescope applications

Oct 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995spie.2543..154r&link_type=abstract

Proc. SPIE Vol. 2543, p. 154-161, Silicon Carbide Materials for Optics and Precision Structures, Mark A. Ealey; Ed.

Physics

Optics

Scientific paper

The use of continuous fiber reinforced plastic, CFRP, composite materials is introduced here as a viable material for optical telescopes. The thermal characteristics of CFRPs make them attractive as dimensionally stable materials for all-composite telescope structures and mirrors. Composite mirrors have only recently shown promise as replacements for heavier and more fragile glass mirrors. The areal density of a CFRP mirror can be as much as 10 times less than that of a glass mirror. Optical test results show CFRP composite mirrors can be fabricated with an average surface roughness of less than 10 angstroms. Concept models of scope and CFRP optics with associated figure and roughness data are presented.

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