Leadership Team

As Chief Technology Officer, Measurement Products at Radiant Zemax, LLC, Mr. Rykowski is responsible for sustaining engineering and product development for all of the company's Radiant Imaging brand of measurement products, including imaging colorimeters, Imaging Spheres, application software, and the Vision product line.

Mr. Rykowski bring over 30 years of experience in software development, photometry and colorimetry, and illumination optical design. Prior to joining Radiant Zemax at its formation in 2011, Mr. Rykowski co-founded Radiant Imaging, Inc. and acted as President and Chief Technology Officer from 1992 to 2010. He was responsible for the initial development of Radiant's core products including imaging colorimeters and photometers and Radiant Sources (near-field source models with ray generation capability). Mr. Rykowski has also designed a wide variety of illumination systems for applications in cinema projection, micro lithography, theatrical lighting, fiber optics, machine vision, microscope illumination, and LCD projection.

Prior to founding Radiant Imaging, Inc., Mr. Rykowski worked for MAI Systems (1980-1992), a mid-sized ($400M) minicomputer manufacturer based in Irvine, California. At MAI, he managed the development of client-server based accounting and manufacturing systems targeted for Fortune 1000 corporations, and held the additional position of Vice President, Information Systems, where he was responsible for the corporation's internal systems. From 1976-1980, Mr. Rykowski worked for Dyn-Optics, Inc., which specialized in thin film coatings.

Mr. Rykowski received a B.S. in Physics and Chemistry with a Computer Science minor from the University of California, Irvine in 1980.

As Chief Technology Officer, Optical Engineering Products at Radiant Zemax, LLC, Dr. Moore is responsible for the engineering and technological product development of the company's industry-standard ZemaxOptical Design Program, as well as optical engineering tools for source modeling, ray tracing, material modeling, scattering, lens design, imaging, and illumination.

Dr. Moore has over 25 years of experience in optical modeling, design, and software development. Dr. Moore was the founder of ZEMAX Development Corporation, and served as company President and CEO from 1991 to 2011. Dr. Moore was the original author and primary developer of the Zemax Optical Design Program for more than 20 years. Prior to founding ZEMAX Development Corporation, Dr. Moore worked as an Optical Scientist at Lawrence Livermore National Laboratory, and prior to that at General Dynamics Corporation.

Dr. Moore received a B.S. in Physics from California State University at Los Angeles in 1984 and a Ph.D. in Optical Sciences from the University of Arizona in 1991. Dr. Moore was awarded the SPIE Technology Achievement Award in 2001, the OSA David Richardson Medal in 2010, and is a Fellow of the Optical Society of America.

As Chief Operating Officer at Radiant Zemax, LLC., Mr. Kreysar manages Corporate Operations including production, engineering, product development, finance and accounting, legal, quality and human resources. Mr. Kreysar has utilized his engineering, optics, physics, mathematics, and management background in order to successfully implement new optical technology into production manufacturing systems, reduce design and manufacturing lead times, and improve overall product quality.

Prior to joining Radiant Imaging, Doug worked as the head of the optical design group at North American Lighting, Inc. (NAL), a major automotive exterior lighting supplier. Mr. Kreysar executed and oversaw the execution of optical designs for vehicle lighting for the US, European, Japanese, and Australian markets. Mr. Kreysar worked with incandescent, tungsten halogen, high intensity discharge (HID), light emitting diode (LED), neon, and fiber optic light source systems. At NAL, Mr. Kreysar was responsible for the creation of design and manufacturing standards that ensured that NAL's products were able to support the demands of increased performance at lower cost and reduced development time.

Mr. Kreysar's graduate and undergraduate work centered on optics, spectroscopy, and laser physics. He constructed three different types of lasers, grew crystals for laser spectroscopy, and studied the fluorescence spectrum of vapors, crystals, and rare-earth doped optical fibers.

Mr. Kreysar received a B.S. in Physics from Vanderbilt University in 1991, and an M.S. in Applied Physics from the University of Michigan, Ann Arbor, in 1993. Doug is the author or co-author of multiple technical papers and in 1999 received an Excellence in Oral Presentation Award from the Society of Automotive Engineers. He has been awarded three US patents.

Mark Nicholson is Vice President of the Zemax Group within Radiant Zemax and is also responsible for the Measurement Services and Technical Support teams. Prior to joining Radiant Zemax at its formation in 2011, Mark was Vice President, Operations of Zemax Development Corporation. Mark brings 30 years of experience in the optics industry, and almost 20 years of Zemax experience, to the company. Mark is responsible for technical support, training and sales and marketing for the Zemax and Measurement Services product lines, and is the author of many Knowledge Base articles on optical design using Zemax.

Prior to joining the company, Mark was Technical Director at Optima Research, and has held several consulting and technical management roles. Mark earned a Ph.D. in Plasma Spectroscopy from Imperial College, University of London in 1983 and a Bachelor's degree on Physics also from Imperial College in 1979.

Dr. Kostal brings over 26years of international experience in high technology engineering, marketing and sales to his position at Radiant Zemax. His management responsibilities span direct sales, sales channels, technical sales support, product management, and product and corporate marketing.

Dr. Kostal has held executive sales and marketing positions at both start-up and established companies addressing industrial, consumer electronics, communications, and defense markets. Dr. Kostal previously worked at APIC (Advanced Photonic Integrated Circuits) Corp., as VP of Business Development; NanoOpto Corp., which developed and manufactured nanotechnology enabled optical components, as VP of Sales and Marketing; SpectraSwitch Corp., which applied liquid crystal technologies to optical switching, as VP of Marketing; TranSwitch Corp., a communications semiconductor developer, as VP of Marketing; and at Lucent Technologies/AT&T/AT&T Bell Laboratories in various executive and management roles. In those positions, Dr. Kostal has defined innovative product and marketing strategies, and successfully grown market presence and sales volumes.

Dr. Kostal received a B.S. in Mathematics from the University of Texas at El Paso in 1979, and a Ph.D. in Mathematics from The University of Texas at Austin in 1985. He has published numerous papers in technical and trade publications; he has been awarded two patents.