Computer Controlled Fabrication of Large Visibly Transparent Freeform Conformal Windows Navy SBIR FY2015.2 Sol No.: Navy SBIR FY2015.2 Topic No.: N152-107 Topic Title: Computer Controlled Fabrication of Large Visibly Transparent Freeform Conformal Windows Proposal No.: N152-107-0831 Firm: Hnu Photonics 350 Hoohana St Kahului, Hawaii 96732 Contact: Riley Aumiller Phone: (808) 244-7800 Abstract: The primary goal of this Phase I research effort is to develop manufacturing methods to grind and polish glass substrates into non-rotationally symmetric freeform conformal sensor windows with dimensions up to 12x12 inches with a sag height of approximately 4 inches and an RMS optical precision of 0.5 micron or better. Benefits: HNu Photonics has developed techniques for shaping and polishing specialized materials and metals, such as sapphire for transparent armor and silicon carbide ceramics for defense and space applications. Utilizing �free form� optical manufacturing capabilities, specialized materials and complex optical components and systems that require unique solutions are possible. Continued development of free form manufacturing technologies like precision single point diamond turning, precision elastic CNC grinding, and water jet material processing has lead to more novel designs and deployment of optical systems to respond to the growing needs of many high technology markets. Computer controlled aspheric polishing of silicon carbide has the potential to transform the semiconductor industry with high precision optics for Extreme Ultra-Violet Lithography (EUVL). Such next generation optical fabrication technology may help overcome the limiting barriers to further miniaturization of semiconductor devices. Free form or numeric optical surfaces have broad Defense Department applications, such as bullet proof glass for military vehicle windows, aircraft, UAV and nose cone windows, as well as in the space and surveillance markets, infrared and extreme ultraviolet optics and night vision applications. Other market sectors where free form optics will make a significant impact is in high efficiency illumination systems, heads up displays, medical imaging, Astronomy and concentrating solar applications. U.S. military spending represents 35% of the global total ($619 billion) and accounts for over half of discretionary spending in the U.S. federal budget. While the U.S. is decreasing military spending, other countries (China, India, Israel, Turkey) are increasing spending, some significantly. Precision computer generated surfaces may lead to rapid growth of the Photonics industry with increased use of unmanned aerial vehicles (�drones�), improved reconnaissance, hyper-spectral imaging, optical targeting, anti-missile systems, panoramic night vision goggles, and laser defense systems to track and destroy incoming drones or missiles. Of the $619 billion US military spending budget, HNu Photonics is positioned to compete for a wide range of optics and photonics projects, estimated at $40 billion. Current projects in development with potential military application include multi-dimensional sensor technology (3D imaging, spectrometer design), laser beam control interfacing, and beam projectors and receivers. Return