Method of obtaining a parabolic reflecting surface from thin float glass plate and its application to the LAMAR X-ray telescope

Details Method of obtaining a parabolic reflecting surface from thin float glass plate and its application to the LAMAR X-ray telescope Method of obtaining a parabolic reflecting surface from thin float glass plate and its application to the LAMAR X-ray telescope

Jan 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979spie..184...86h&link_type=abstract

In: Space optics: Imaging X-ray optics workshop; Proceedings of the Seminar, Huntsville, Ala., May 22-24, 1979. (A80-17469 05-89

Computer Science

Performance

Cosmic X Rays, Glass, Hubble Space Telescope, Parabolic Reflectors, Spaceborne Telescopes, X Ray Telescopes, Angular Resolution, End Plates, Fabrication, Finite Element Method, Flat Plates, Image Resolution, Low Cost, Paraboloid Mirrors, Performance Tests, Surface Properties

Scientific paper

A method of producing a parabolic reflecting surface from thin float glass plate is presented. Inexpensive focusing mirrors can be made by applying a predetermined moment to each end of plate uniformly along the leading and trailing edges, and controlling the relative end displacement. The method improves the Underwood technique of bending a glass strip into a parabolic optical element by including the relative end displacement in addition to the two moments in the slope error minimization. A finite element model based on plate theory is used to examine the anticlastic effect of a bending plate and the nonuniformity of the applied moments. The construction of prototype Kirkpatrick-Baez mirror elements from commercial float glass are described, concluding that this method allows production of low cost modules for the Lamar X-ray Telescope with improved resolution.

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