Other
Scientific paper
Jan 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984spie..444..100r&link_type=abstract
IN: Advanced technology optical telescopes II; Proceedings of the Meeting, London, England, September 5, 6, 1983 (A85-25230 10-8
Other
Computer Aided Design, Lens Design, Optical Correction Procedure, Spaceborne Telescopes, Ultraviolet Telescopes, Photocathodes
Scientific paper
Parameters are given for a corrector lens design which will provide a 0.5 deg field of good definition from 134 nm at the Ritchey-Chretien focus of the F/2-F/15 Starlab 1-meter telescope. The optimization includes the window of the detector which is aspherized on the outside but not on the inside where the photocathode is deposited. The 130 mm diameter detector is preceded by two lenses, the first of which is convex-plano. Because this element has a flat surface it can be interchanged with other elements to either coompensate for the chromatic aberration of filters (by making the lens thinner), and/or to provide dispersion for multi-object slitless spectroscopy. In the latter case, the interchanged element is wedged and has a course transmission grating deposited on the flat side. This combination of grating and lens is referred to as a grens.
Bottema Murk
Richardson Harvey
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