The design of a 40 cm balloon ultraviolet telescope

Details The design of a 40 cm balloon ultraviolet telescope The design of a 40 cm balloon ultraviolet telescope

Jun 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983esasp.183..415s&link_type=abstract

In ESA Sixth ESA Symp. on European Rocket and Balloon Programs and Related Res. p 415-419 (SEE N83-33397 21-46)

Physics

Optics

1

Balloon-Borne Instruments, Design Analysis, Ultraviolet Telescopes, Accuracy, Cassegrain Optics, Constraints, Functional Design Specifications, Paraboloid Mirrors, Point Spread Functions, Schmidt Telescopes

Scientific paper

The designs of a three and a two mirror ultraviolet telescope with and without a corrector are discussed. Within the wavelength range around 20 nm, the expected optical image quality ( 10 arcsec) suggests that a cassegrain mounting with a focal corrector is best. The main optical characteristics and performances of the selected design are given. Difficulties in the figuring and the control of the primary parabolic mirror (F/1.45) are mentioned as well as laboratory measurements of the point spread function. The thermal environment, shocks and vibrations induced by the guidance system are identified as the major constraints on the mechanical structure.

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