Arizona Optical Systems Share: Engineering Design and Prototyping ServicesOptics Arizona Optical Systems Visit Website 5575 S. Houghton Rd. Tucson, Arizona 85747 520-777-4179 About Map About AOS provides state of the art optical systems and components up to 2 meters in diameter for astronomy, aerospace and defense, and commercial industries. We specialize in large aspherics and flats. What's Nearby? Distance: 5 10 15 20 25 50 mi.