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Proceedings Paper

Bent Glass Optics
Author(s): J. H. Underwood; D. Turner
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Paper Abstract

We describe how a glass strip may be bent to match any curve of large radius of curvature, to a high de-gree of accuracy, so that it may be used as a glancing incidence X-ray or extreme ultraviolet optical element. The desired match is obtained by applying a suitable combination of end couples and adjusting the cross-sectional moment of inertia along the length of the strip by varying its breadth. Two applications are described; a parabolic reflector for use as a laboratory X-ray collimator for testing mechanical collimators to be used in space instruments, and an elliptical reflector for point-to-point focussing. The latter device has been used for testing gratings in the X-ray and extreme ultraviolet (euv) regions and for concentrating radiation on to the entrance slit of a spectrometer, with a resultant gain in speed and resolution. We suggest that the technique may have other laboratory and space applications, which are briefly described.

Paper Details

Date Published: 29 August 1977
PDF: 11 pages
Proc. SPIE 0106, X-Ray Imaging, (29 August 1977); doi: 10.1117/12.955464
Show Author Affiliations
J. H. Underwood, Stanford University (United States)
D. Turner, Imperial College (United Kingdom)

Published in SPIE Proceedings Vol. 0106:
X-Ray Imaging
Richard P. Chase; Glenn W. Kuswa, Editor(s)

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