Strategy And Calculations For The Design Of Baffles For Wolter Type II Telescopes

John D. Mangus

doi:10.1117/12.942188

9 August 1988 Strategy And Calculations For The Design Of Baffles For Wolter Type II Telescopes

John D. Mangus

Proceedings Volume 0830, Grazing Incidence Optics for Astronomical and Laboratory Applications; (1988) https://doi.org/10.1117/12.942188
Event: 31st Annual Technical Symposium on Optical and Optoelectronic Applied Sciences and Engineering, 1987, San Diego, CA, United States

Abstract

Spacef light, stellar pointing telescopes require baffle systems to define the field of view and protect this observational area from stray and scattered light. In the case of near normal incidence telescope systems, the problem consists in controlling the stray/scattered radiation reaching the image plane when circular platesl, the primary and secondary mirrors, are the imaging elements. The case addressed in this paper is quite different in that it involves baffling two conical surfaces, i.e., the primary and secondary mirrors of a Wolter Type II telescope. A strategy is described for systematically moving through the telescope system and establishing criteria for placement of baffles. Calculations are given which determine the size and number of permitted baffles as a function of practical physical parameters. Clear options are given for the design of minimum baffle lengths to meet packaging constraints.

Citation Download Citation

John D. Mangus "Strategy And Calculations For The Design Of Baffles For Wolter Type II Telescopes", Proc. SPIE 0830, Grazing Incidence Optics for Astronomical and Laboratory Applications, (9 August 1988); https://doi.org/10.1117/12.942188

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