Professional Experience

2000-Present Principal Engineer/Optical Design, Optical Research Associates
1999-2000 Engineering Fellow, Raytheon Electronic Systems, El Segundo, CA
1997-1999 Principal Engineer/Optical Design, Optical Research Associates
1990-1996 Senior Staff Engineer/Optical Design, Optical Research Associates
1986-1989 Staff Engineer/Optical Design, Optical Research Associates
1984-1986 Senior Engineer/Optical Design, Optical Research Associates
1980-1984 Graduate Research Associate, University of Arizona
1983 (Summer) Optical Designer, Jet Propulsion Laboratory
1982 (Summer) Optical Designer, Jet Propulsion Laboratory
1979 (Summer) Engineering Assistant, Stanford Linear Accelerator Center, Stanford University

Education

1984 Ph.D. Degree in Optical Sciences, University of Arizona
1980 B.S. Degree in Physics, Stanford University

His experience is primarily in the area of the design, analysis, and tolerancing of optical systems. Some of his fabricated designs include refractive relay and projection lenses for CRT, laser, and light valve sources, anamorphic laser scanning lenses, dome projection lenses exceeding 180° field of view, visible and IR band lenses for detector testing, variable-magnification beam expanders for IR and visible wavelength lasers, helmet-mounted night vision optics, copy lenses for graphic arts, astronomical telescope optics, null lenses, high-speed optical disk objectives and laser diode collimators, a star tracker, catadioptric grating spectrometer, and head-up display lens.

Having been involved in numerous projects at ORA requiring all-reflective configurations, he has developed a variety of obscured and unobscured reflective designs for potential use in x-ray lithography, sensor testing, and ultraviolet through IR band imaging.  He has developed and documented user-defined constraint techniques to aid the optimization of such systems while controlling their packaging constraints, and has received two patents in the field of unobscured reflective optics.  His laboratory experience in this area includes interferogram analysis of multi-mirror systems in support of compensator adjustment for alignment.

Awards/Honors

2000 Raytheon company excellence awards for optical design accomplishments
1990 NASA Tech Brief, "Optical Modeling of Segmented Mirror Telescopes" (co-authored with P. Manhart)
1985 NASA Tech Brief, "Manufacture of a Reflecting Slit Optical Element" (co-author)
1983 NASA Tech Brief, "Addition to Triple Reflecting Schmidt-Littrow Prism Imaging Spectrometer" (co-author)
1983 SPIE Scholarship in Optical Engineering

Patents

U.S. 5,610,751 Co-inventor of Optical Scanning Device Having a Spherical Exit Window (assigned to Speedring Systems). (Co-inventor.)
U.S. 5,309,276 Catoptric Optical System
U.S. 5,063,586 Co-inventor of Apparatus for Semiconductor Lithography (assigned to AT & T Bell Laboratories).  (Co-inventor.)

Publications

"Unobscured Mirror Designs", to appear in Proceedings of OSA IODC Conference, June 2002.
"Optical Design of a 10x Zoom Lens Objective for the Visible Wavelength Band" SPIE, Vol. 4441B, July 2001.
"Tolerance Analysis of Null Lenses Using End-use System Performance Criterion", Optical Engineering, July 2000.
"Conformal Optics: Key Issues in a Developing Technology" (with Kevin P. Thompson), Optics & Photonics News, October 1997.
"Compensating Lens Design and Testing of the COSTAR Optics for the HST," OSA IODC, Vol. 22, p. 284, 1994.
"Compact Unobscured Four-Mirror Optical System," OSA IODC, Vol. 22, p. 356, 1994.
"Design of a High Speed UV-Transmitting Camera for the Keck LRIS," (with J. McCarthy), SPIE, Vol. 2198, p. 1096, 1994.
"Reflective Optical Designs for Soft X-ray Projection Lithography," (with T. Jewell and K. Thompson), SPIE, Vol. 1527, p. 163, 1991.
"Design of Reflective Relay for Soft X-ray Lithography," (with T. Jewell), SPIE, Vol. 1354, p. 330, 1990.
"Reflective Systems Design Study for Soft X-ray Projection Lithography," (with T. Jewell and K. Thompson), J. Vac. Sci. Technology B, Vol. 8 (6), p. 1519, Nov/Dec 1990.
"Segmented Mirror Manufacturing and Alignment Tolerances," (with P. Manhart); SPIE, Vol. 1114, p. 387, 1989.
"Algorithm for the Computation of the Filter Transmission Function in Optical Systems," (with M. Schaaf and F. Cucu), OPTIK, Vol. 81, No. 1, p. 21, 1988.
"Control of Packaging Constraints in the Optimization of Unobscured Reflective Systems," SPIE, Vol. 751, p. 143, 1987.
"Optical Design Issues in Electro-Optical Systems Integration," (with R. Hilbert), SPIE, Vol. 762, p. 1, 1987.
"A Null Lens Design Approach for Centrally-Obscured Components," SPIE, Vol. 679, p. 17, 1986.
"Null Tests for Oblate Spheroids," (with R. Parks), Applied Optics, Vol. 23, No. 8, p. 1246, 1984.
"Nonstandard Representations of Aspheric Surfaces in a Telescope Design," Applied Optics, Vol. 23, p. 520, 1984.
"Nonstandard Representations of Aspheric Surfaces in Optical Design," Ph.D. Dissertation, University of Arizona, Tucson, Ariz., 1984; JOSA, Vol. 1, No. 11, p. 1237, 1984.
"Reflecting Schmidt Imaging Spectrometers," (with J. B. Breckinridge, N. A. Page, and R. R. Shannon), Applied Optics, Vol. 22, p. 1175, 1983.

Professional Societies

Member, OSA - Optical Society of America
Member, SPIE - The International Society for Optical Engineering