Share Email Print
cover

Proceedings Paper

Spiral conical approximations to double reflection Wolter optics
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

The design of a grazing incidence focusing optic obtained from a spiral approximation to multiple nested cones produces an annular image of a point source. The angular size of the annulus depends mainly on the pitch of the winding and the focal length. For a spiral conical approximation to Wolter optics, the effect is magnified by the double reflection. However, if the two conical spirals are wound one clock-wise and the other counter-clock-wise, then the aberration is partially compensated. We use a ray tracing code to evaluate advantages and disadvantages of this optical design for potential applications of a light weight optics technology based on plastic foils that we are currently investigating.

Paper Details

Date Published: 15 July 2008
PDF: 7 pages
Proc. SPIE 7011, Space Telescopes and Instrumentation 2008: Ultraviolet to Gamma Ray, 701136 (15 July 2008); doi: 10.1117/12.790963
Show Author Affiliations
Marco Barbera, UNIPA (Italy)
INAF - Osservatorio Astronomico di Palermo (Italy)
Teresa Mineo, INAF - Istituto di Astrofisica Spaziale e Fisica Cosmica (Italy)
Emanuele Perinati, INAF - Istituto di Astrofisica Spaziale e Fisica Cosmica (Italy)
Herbert W. Schnopper, Smithsonian Astrophysical Observatory (United States)
Daniele Spiga, INAF - Osservatorio Astronomico di Brera (Italy)
Angelo Taibi, UNIFE (Italy)


Published in SPIE Proceedings Vol. 7011:
Space Telescopes and Instrumentation 2008: Ultraviolet to Gamma Ray
Martin J. L. Turner; Kathryn A. Flanagan, Editor(s)

© SPIE. Terms of Use
Back to Top