Dale Buralli received his BS in physics from the Massachusetts Institute of Technology in 1983 and his PhD in optics from the University of Rochester in 1991. His PhD research was centered on the design of optical systems containing diffractive optical elements. From 1991 until 2000, he was employed by Sinclair Optics. At Sinclair, he was one of the principal developers of the OSLO® series of optical design software programs. His primary responsibilities included the development and implementation of algorithms for optical system design and analysis, including ray-tracing, geometric and diffraction-based image quality assessment, optimization of optical systems, Gaussian beam propagation, polarization analysis, and tolerancing. From 2000 until 2002, he was a senior scientist at Corning Rochester Photonics Corporation where his duties included optical modeling, performance analysis, and tolerancing for various photonic components and systems, such as 2D and 3D optical switches and cross-connects. Since January 2003, Dr. Buralli has served as chief scientist at Apollo Optical Systems, Inc. (www.apollooptical.com). At Apollo, he is responsible for the design and optical modeling of a wide variety of optical systems, with particular emphasis on virtual/augmented reality, imaging optics utilizing polymer components, and devices for therapeutic vision correction. Since the fall of 2002, he has been an adjunct associate professor at the University of Rochester, teaching a required graduate course in geometrical optics.