26 May 2015 Investigation of As40Se60 chalcogenide glass in precision glass molding for high-volume thermal imaging lenses
Author Affiliations +
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.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jeremy Huddleston, Jeremy Huddleston, Jacklyn Novak, Jacklyn Novak, William V. Moreshead, William V. Moreshead, Alan Symmons, Alan Symmons, Edward Foote, Edward Foote, } "Investigation of As40Se60 chalcogenide glass in precision glass molding for high-volume thermal imaging lenses", Proc. SPIE 9451, Infrared Technology and Applications XLI, 94511O (26 May 2015); doi: 10.1117/12.2177026; https://doi.org/10.1117/12.2177026
PROCEEDINGS
14 PAGES


SHARE
Back to Top