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Proceedings Paper

Infrared Optics Hot Pressed From Fluoride Glass
Author(s): R. R. Turk
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Paper Abstract

Optical figured surfaces were formed directly by hot pressing a fluoride glass in a closed die of tungsten carbide. Microduplication of the surface finish was also obtained. A glass composed of the fluorides of barium, thorium and zirconium or hafnium, and transmitting into the infrared out to 8 microns was press formed into an optical flat above its softening temperature and below its crystallization temperature. Also, small vitreous pieces were consolidated into larger pieces under moderate heat and pressure, thus avoiding the crystallization which occurs in large batches cooled from the melt.

Paper Details

Date Published: 26 February 1982
PDF: 8 pages
Proc. SPIE 0297, Emerging Optical Materials, (26 February 1982); doi: 10.1117/12.932502
Show Author Affiliations
R. R. Turk, Hughes Research Laboratories (United States)


Published in SPIE Proceedings Vol. 0297:
Emerging Optical Materials
Solomon Musikant, Editor(s)

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