Engineered polymeric IR-transparent protective coatings

Nick A. Brette; Paul Klocek

doi:10.1117/12.187354

28 September 1994 Engineered polymeric IR-transparent protective coatings

Nick A. Brette, Paul Klocek

Proceedings Volume 2286, Window and Dome Technologies and Materials IV; (1994) https://doi.org/10.1117/12.187354
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

Abstract

This paper describes a novel infrared (IR)-transparent polymer engineered at Texas Instruments to protect IR windows. The polymer has greater than 80% transmission in the 8- to 12-micrometer range and can be combined with antireflection coatings to yield highly transparent IR window systems. The novel molecular structure of the polymer imparts a high, in-plane elastic modulus/strength to the coating, yet produces a lower-modulus material perpendicular to the plane. This very inexpensive coating can protect any IR window from both supersonic normal-incidence waterdrop erosion and damage by 200-mph blowing sand.

Citation Download Citation

Nick A. Brette and Paul Klocek "Engineered polymeric IR-transparent protective coatings", Proc. SPIE 2286, Window and Dome Technologies and Materials IV, (28 September 1994); https://doi.org/10.1117/12.187354

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