Bent Glass Optics

J. H. Underwood; D. Turner

doi:10.1117/12.955464

29 August 1977 Bent Glass Optics

J. H. Underwood, D. Turner

Proceedings Volume 0106, X-Ray Imaging; (1977) https://doi.org/10.1117/12.955464
Event: 1977 SPIE/SPSE Technical Symposium East, 1977, Reston, United States

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.

Citation Download Citation

J. H. Underwood and D. Turner "Bent Glass Optics", Proc. SPIE 0106, X-Ray Imaging, (29 August 1977); https://doi.org/10.1117/12.955464

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