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Proceedings Paper

Fabrication of chalcogenide glass lens module for thermal security camera
Author(s): Du Hwan Cha; Yeon Hwang; Jeong-Ho Kim; Dong-Sik Kim; Hye-Jeong Kim
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Paper Abstract

Although the development of small formats (640x480 pixel arrays) and amorphous silicon microbolometers has greatly decreased detector cost, another important component of a thermal camera, optics, still prohibit a breakthrough for highvolume commercial systems. Aspheric lenses used in the thermal imaging are typically made using the costly single point diamond turning(SPDT) process of expensive single crystal materials (Ge and ZnS, etc). As a potential solution to reduce cost, compression molding method using chalcogenide glass has been attracted to fabricate IR optic. The present paper reports fabrication of a molded chalcogenide glass lens module for thermal security camera. In addition, the molded chalcogenide glass lens was evaluated through form error, roughness and decentration for each surface of the molded lens. From evaluation results, we verified that the molded lens is capable of adopting to thermal imaging applications.

Paper Details

Date Published: 7 October 2014
PDF: 7 pages
Proc. SPIE 9249, Electro-Optical and Infrared Systems: Technology and Applications XI, 924916 (7 October 2014); doi: 10.1117/12.2066805
Show Author Affiliations
Du Hwan Cha, Korea Photonics Technology Institute (Korea, Republic of)
Yeon Hwang, Korea Photonics Technology Institute (Korea, Republic of)
Jeong-Ho Kim, Korea Photonics Technology Institute (Korea, Republic of)
Dong-Sik Kim, Korea Photonics Technology Institute (Korea, Republic of)
Hye-Jeong Kim, Korea Photonics Technology Institute (Korea, Republic of)


Published in SPIE Proceedings Vol. 9249:
Electro-Optical and Infrared Systems: Technology and Applications XI
David A. Huckridge; Reinhard Ebert, Editor(s)

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