Investigation of As40Se60chalcogenide glass in precision glass molding for high-volume thermal imaging lenses
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2015-05-26 |
| Journal | Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE |
| Authors | Jeremy Huddleston, Jacklyn Novak, William V. Moreshead, Alan Symmons, Edward F. Foote |
| Citations | 8 |
Abstract
Section titled āAbstractāThe 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. As<sub>40</sub>Se<sub>60</sub> 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. As<sub>40</sub>Se<sub>60</sub> 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 As<sub>40</sub>Se<sub>60</sub> for widespread use in highvolume thermal imaging optics. The relative advantages and disadvantages of As<sub>40</sub>Se<sub>60</sub> as compared to other chalcogenide glasses will also be discussed.
Tech Support
Section titled āTech SupportāOriginal Source
Section titled āOriginal SourceāReferences
Section titled āReferencesā- 2011 - Molded Optics: Design and Manufacture
- 2012 - An Investigation of Material Properties for a Selection of Chalcogenide Glasses for Precision Glass Molding
- 2014 - Comparison of the thermal effects on LWIR optical designs utilizing different infrared optical materials