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Proceedings Paper

Investigation of As40Se60 chalcogenide glass in precision glass molding for high-volume thermal imaging lenses
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Paper Abstract

The growing demand for thermal imaging sensors and cameras has focused attention on the need for larger volumes of lower cost optics in this infrared region. A major component of the cost of thermal imaging lenses is the germanium content. As40Se60 was developed as a moldable, germanium-free chalcogenide glass that can serve as a low cost alternative to germanium and other infrared materials. This material also has promising characteristics for improved optical performance, especially with regard to reduced thermal sensitivity. As40Se60 has found acceptance as a material to be diamond turned or polished, but it is only now emerging as a legitimate candidate for precision glass molding. This paper will review chalcogenide molding and characterize As40Se60 for widespread use in highvolume thermal imaging optics. The relative advantages and disadvantages of As40Se60 as compared to other chalcogenide glasses will also be discussed.

Paper Details

Date Published: 26 May 2015
PDF: 14 pages
Proc. SPIE 9451, Infrared Technology and Applications XLI, 94511O (26 May 2015); doi: 10.1117/12.2177026
Show Author Affiliations
Jeremy Huddleston, LightPath Technologies, Inc. (United States)
Jacklyn Novak, LightPath Technologies, Inc. (United States)
William V. Moreshead, LightPath Technologies, Inc. (United States)
Alan Symmons, LightPath Technologies, Inc. (United States)
Edward Foote, LightPath Technologies, Inc. (United States)

Published in SPIE Proceedings Vol. 9451:
Infrared Technology and Applications XLI
Bjørn F. Andresen; Gabor F. Fulop; Charles M. Hanson; Paul R. Norton, Editor(s)

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