| 2007-Present |
Systems Engineer/Illumination Engineering Services, Optical Research Associates |
| 2003-2006 |
Senior Staff Engineer/Illumination Engineering Services, Optical Research Associates |
| 1999 - 2002 |
Research Assistant, University of Arizona |
| 1996 - 2002 |
Sole Proprietor (Davenport Optical Consulting), Optical Engineer Lighting Development Engineer, Prince Corporation, Holland, MI, Research/Teaching Assistant, John Carroll University |
While at ORA, he has been involved, to-date, in the design of an innovative solar collector geometry for the consumer (household rooftop) market in the South West US, in the modeling of optical fiber transport for replacing fluorescent lighting with all-wide core fiber optic for a DARPA development program for shipboard lighting, and in the design of efficient illumination systems for a variety of systems ranging from animal health diagnostics to toys for the consumer market. |
| Prior to joining ORA, he obtained a Ph.D. in Optical Sciences from the University of Arizona. His research, and dissertation, sponsored by DARPA, was directed at enabling the use of Non-Uniform-B-Spline surfaces (NURBS) to create faceted reflectors that produce efficient uniform illuminance distributions. During this same period he started an optical consulting business. Much of the contract work he performed was with the Lighting Innovations Institute and Lighting Innovations Corporation, based in Cleveland, OH. Work there included diverse lighting applications such as: automotive tail light prototypes, medical illuminators, and fiber optic lighting applications. |
| Earlier, at John Carroll University, he earned his bachelor's and master's of science (physics) degrees studying martensitic phase transformations in NiAl alloys. Much of his work there was performed using acoustics and atomic force microscopy (AFM). After completing his MS degree at John Carroll University, he went on to Prince Corporation (now Johnson Controls), where he worked on interior automotive lighting applications as a lighting development engineer before applying successfully for the University of Arizona advanced degree program. |
| "Creation of a Uniform Circular Illuminance Distribution Using Faceted Reflective NURBS Surfaces," Ph. D. Dissertation, University of Arizona, December, 2002. |
| "3D NURBS representation of surfaces for illumination," Presented at IODC Conference, Summer, 2002. |
| "Automated Design of a Uniform Distribution Using Faceted Reflectors," (with W. J. Cassarly, S. R. David, D. G. Jenkins, and A. P. Riser), Optical Engineering, Vol 39, No. 7, pp 1830-1839, 2000. (also, presented orally at SAE, 2000). |
| "Optimization Methods for Illuminators for sub-100nm Lithography," (with W.J. Cassarly, K. Thompson, T. Kuper, J. McGuire, R. Shack), DARPA Advanced Lithography conference, Oral Presentation, May 2000. |
| "Changes in Angular and Spatial Distribution Introduced into Fiber Optic Headlamp Systems by the Fiber Optic Cables," (with W. J. Cassarly, R. L. Hansler, T. E. Stenger, G. R. Allen, and R. F. Buelow), SAE International Congress and Exposition, Paper No. 981197, 1998. |
| "Comparison of Dual Focus Collector Schemes for Fiber Systems," (with W. J. Cassarly, R. L. Hansler, and G. R. Allen), SAE International Congress and Exposition, Paper No. 970254, 1997. |
| "Acoustic and Atomic Force Microscopy Study of the Martensitic Phase Transformation of Ni63Al37 as a Function of Stress and Temperature," M.S. Thesis, John Carroll University, 1995. |
| Temperature and Uniaxial Stress Dependence of the Martensitic Transformation Temperature in Ni63Al37 (with C. Grefofsky, M. Gonzalez, J. Worgull, and J. Trivisonno), Vol. 5, no. 8, 1995: 1023 Journal de physique. IV, Colloque : JP. ISSN: 1155-4339. |
| Structure, structural phase transitions, mechanical properties, defects, etc - Ultrasonic and atomic force studies of the martensitic transformation induced by temperature and uniaxial stress in NiAl alloys, (with J. Trivisonno, and L. Zhou), Vol. 59, no. 5, 1999: 3421 Physical review. B, Condensed matter. ISSN: 0163-1829. |
