Optical Coatings for Deep Concave Surface Navy SBIR FY2009.1 Sol No.: Navy SBIR FY2009.1 Topic No.: N091-028 Topic Title: Optical Coatings for Deep Concave Surface Proposal No.: N091-028-0551 Firm: Rugate Technologies, Incorporated 353 Christian Street Oxford, Connecticut 06478-1053 Contact: Thomas Rahmlow Phone: (203) 267-3154 Web Site: www.rugate.com Abstract: Anti-reflection coating of ogive shaped optics presents a number of technical challenges. The principle challenge is obtaining a uniform high transmission coating on a strongly curved surface. The coating must perform well over a wide range of angles. If the optic is exposed to ambient conditions, it must be resistant to rain and dust impact, as well as rapid changes in temperature. The proposed process is a cylindrical magnetron sputtering source to produce a gradient index anti-reflection film. Efforts in Phase 1 will include the demonstration of high performance anti-reflection film on cylindrical and ogive shaped optics in the mid-IR spectral region. Benefits: This program will develop anti-reflection coatings that are stable, durable, survive extreme temperatures, and be applicable to highly curved or unusually shaped surfaces. Applications include components in medical lighting systems, ball lenses for fiber optic interconnects, solar reflector coatings, optical projection systems, and space-based optical systems. Return