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Proceedings Paper • new

Geometry for off-axis parabolic mirrors
Author(s): Jeong-Yeol Han; Sukmock Lee
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Paper Abstract

We investigated the geometrical characteristics of off-axis parabolic mirrors (OPMs). We found that the clear aperture of an OPM is an ellipse with a set of major/minor diameters, and the center of the elliptical aperture does not correspond to the deepest depth of the mirror. Despite this property, the distance from the reference optical axis (ROA) of the parent parabolic mirror to the deepest point of the OPM is equal to the distance from the ROA to the center of the elliptical aperture of the OPM. This enables one to define an OPM by projecting a aperture perpendicular to the ROA on a parabolic surface.

Paper Details

Date Published: 10 July 2018
PDF: 6 pages
Proc. SPIE 10706, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III, 107066M (10 July 2018); doi: 10.1117/12.2318256
Show Author Affiliations
Jeong-Yeol Han, Korea Astronomy and Space Science Institute (Korea, Republic of)
Sukmock Lee, Inha Univ. (Korea, Republic of)


Published in SPIE Proceedings Vol. 10706:
Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III
Ramón Navarro; Roland Geyl, Editor(s)

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