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http://dx.doi.org/10.3807/KJOP.2012.23.4.154

Design and Fabrication of Low Cost Infrared Optical System Using Precision Glass Molding Lens Made by Chalcogenide Glass  

Oh, Seung Eun (Product Engineering Team 1 Group, Samsung Thales Co., Ltd.)
Lee, Sun Kyu (Product Engineering Team 1 Group, Samsung Thales Co., Ltd.)
Choi, Joong Kyu (Product Engineering Team 1 Group, Samsung Thales Co., Ltd.)
Song, Kook Hyun (Precision Optechs Co., Ltd.)
Baek, Jong Sik (Eosystem Co., Ltd.)
Publication Information
Korean Journal of Optics and Photonics / v.23, no.4, 2012 , pp. 154-158 More about this Journal
Abstract
In this paper, for low cost infrared optical equipment, we design and fabricate an infrared optical system for an uncooled detector using PGM(Precision Glass Molding) lenses. The designed infrared optical system has a good athermalization, and the material of all of its lenses is a chalcogenide glass suitable for the PGM method. In addition, we also fabricate the same infrared optical system using SPDT(Single Point Diamond Turning) lenses in order to measure the optical performance of PGM lenses. We measure the MTF(Modulation Transfer Function) of the two infrared optical systems which use the PGM lenses and the SPDT lenses. And then we compare and analyze the images of them both. As a result, we find that they have only a very small difference in optical performance. If the use of PGM lenses increases, we expect to reduce the cost of infrared optical equipment.
Keywords
Chalcogenide glass; Glass molding; Infrared optical system; Uncooled;
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