Schiefspieglern: wildly off-axis reflecting optical systems

Orestes Nicholas Stavroudis

doi:10.1117/12.231122

5 February 1996 Schiefspieglern: wildly off-axis reflecting optical systems

Orestes Nicholas Stavroudis

Proceedings Volume 2730, Second Iberoamerican Meeting on Optics; (1996) https://doi.org/10.1117/12.231122
Event: Second Iberoamerican Meeting on Optics, 1995, Guanajuato, Mexico

Abstract

A telescope was needed that would fit into the cramped quarters of an earth orbiting satellite and also be light in weight. The first requirement dictated that the system had to be folded; the second made undesirable any system of planar folding mirrors. My solution was to use a pair of confocal conic mirrors but with their axes subtending a predetermined angle. This made it possible to arrange the mirrors, more or less, to fit the available space. I've called this kind of system a Schiefspiegler after a book describing similar telescope designs. At this point the system consists of a pair of confocal conic mirrors, prolate spheroids to be precise, whose axes subtend an angle (beta) and that intersect at the common focus. The other parameters are the two eccentricities, (epsilon) ₁ and (epsilon) ₂, the two vertex radii of curvature r₁ and r₂.

Citation Download Citation

Orestes Nicholas Stavroudis "Schiefspieglern: wildly off-axis reflecting optical systems", Proc. SPIE 2730, Second Iberoamerican Meeting on Optics, (5 February 1996); https://doi.org/10.1117/12.231122

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