Rockwell Laser Industries
Laser Safety Products, Training and Consulting at Rockwell Laser Industries
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RLI Training Course Lecturers and Consultants

Ken Barat, CLSO, Course Lecturer
Ken Barat is the Laser Safety Officer for the National Ignition Facility Directorate at Lawrence Livermore National Laboratory. He is a Certified LSO and Fellow of the Laser Institute of America, winner of the Tim Rener User Service Award from the Advanced Light Source, 2001. Ken was LSO at Lawrence Berkeley Nat. Lab, and lead the Non-ionizing group for the Arizona Radiation Regulatory Agency. He is a member of several ANSI committees, including the Main Z136 group, control committee, non-beam committee and Educational Z136.5 committee. Ken has lectured on laser safety throughout the US and abroad. He has authored several laser safety articles, contributed a chapter on Medical laser safety for a textbook and has lectured for several professional societies including the Health Physics Society and AIHA and National Safety Council.
Judy Chamberlain, R.N., Consultant
Judy Chamberlain has been involved in laser nursing at the Cincinnati Christ Hospital for nearly 10 years where she served as Divisional Director, Perioperative Nursing and as the Laser Safety Officer. She holds BS and MS degrees in nursing. Judy is a retired member of the American Society for Laser Medicine and Surgery and is a former member of the editorial advisory board of Laser Nursing Journal. Judy is also a recipient of the Nursing/Allied Health Excellence Award. Judy serves as a principal lecturer for the RLI Medical Laser Safety Officer course.
Patrick J. Clark, CMLSO, Consultant

Mr. Clark has been active in clinical light applications since 1988. Pat moved from his first administrative and clinical exposure of laser use and control at the University of North Carolina Memorial Hospitals in Chapel Hill, North Carolina to being a member of the team to first accomplish and teach routine laser laparoscopic cholecystectomy in several Northeast states. A Texas native, Pat returned home in 1992 to be selected as the founding director of the laser program at the University of Texas Southwestern Medical Center at Dallas and the allied hospitals. In that position he refined a teaching and administrative process that included the control of some 117 laser and light sources in a myriad of applications and a recurring education process for physicians, residents, nurses, and paramedicals. Numbers of internationally known facilities and organizations call upon Pat to assist in development, testing, application and safety of light on tissue worldwide.

Pat has direct experience in complete hospital programs, outpatient and freestanding surgery centers, the beginnings of office and spa applications, and the development of light applications for nonprofessional and home use. His commercial experience includes being Vice President of Clinical Affairs and Product Development for both a national publically held mobile laser-surgical services company, Medical Alliance, and with the device division of an international pharmaceutical company, ICN. Often called upon by laser manufacturers and having given over 400 clinical and lay lectures in the last 20 years, Mr. Clark brings a world of experience to the laser industry.

Jerome E. (Jerry) Dennis, Standards Consultant
Jerry Dennis recently retired after 33 years in the Center for Devices and Radiological Health (CDRH), U.S. Food and Drug Administration where he had been the agency’s international expert in laser and optical radiation safety and safety standards.

Prior to joining the CDRH, Jerry had spent 15 years in industry. He was the Manager of High Energy Laser Products for Hadron, Inc. in New York. Here he was responsible for engineering support for terawatt Nd glass laser systems form CGE in France that are used in fusion research as well as for the firm’s domestic product line of pulsed and CW laser systems and their industrial applications. He had been with TRG, Inc. in New York when Hadron had spun off from TRG in 1968. At TRG he was involved in research and development of high power pulsed laser systems for military and industrial applications.

His early experience was with the Naval Material Laboratory in New York where he was in research on the effects of optical radiation from nuclear weapons.

Jerry holds a bachelor of science degree from Fordham University in New York City.
Jay Eastman, Course Lecturer

Jay Eastman is an applications engineer in the laser group at EWI, where he runs research and development projects. He has more than twenty-five years of materials joining experience, and has developed an expertise in the novel application of lasers for the purpose of materials processing. He has worked with Nd:YAG, fiber, disk, CO2, and diode lasers. Jay is the laser safety officer at EWI.

Prior to joining EWI, Jay worked as a welding engineer at Swagelok specializing in orbital gas tungsten arc welding of tubes and fittings, and at Worthington Cylinders where his activities involved arc and resistance welding of pressurized cylinders. He holds a B.S. and a M.S. in Welding Engineering from The Ohio State University.

Jay has taught an introduction to laser processing course at EWI and onsite for more than ten years.

William J. Ertle, CLSO, CMLSO, President
Mr. Ertle has been associated with Rockwell Laser Industries (RLI) since 1989 where he now holds the position of President. Bill has provided in-depth lectures and training presentations for numerous RLI Training Institute courses, industry conferences, as well as presentations for events at Sandia National Laboratories, Los Alamos National Laboratories, The Fabricators and Manufacturers Association, IEEE/LEOS, OPTCON, ALAC, Bay Area Laser Safety Officers (BALSO) and the International Laser Safety Conference (ILSC). Bill has also authored and co-authored several laser safety articles.

In addition to his training-based activities, he routinely provides RLI clients with product specific technical information on laser safety eyewear, windows, barriers, interlocks and other related laser safety equipment.

Bill is the Chairman of the ANSI Z136 Technical Standards Committee on Control Measures and Training (TSC-4) and a voting member of the Accredited Standards Committee, the main Z136 committee. He is an active member of the Laser Institute of America (LIA) and a former member of their Board of Directors as well as a member of the American Society for Lasers in Medicine and Surgery (ASLMS). He is a member of the Canadian Standards Association (CSA) Technical Committee on Laser Safety and is a Certified Laser Safety Officer by the Board of Laser Safety. Bill is a graduate of Xavier University, Cincinnati, OH.
Roy Henderson, Course Lecturer
Roy Henderson is one of the UK’s leading specialists in laser safety. Through his UK-based consulting company, Bioptica, which he established in 1990, he provides safety support to European manufacturers and users of laser equipment.

Roy graduated in physics from the University of London and has followed a career in the application of optics and laser technology in both the medical and industrial sectors. He is actively involved in the development of international safety standards. He is the Chairman of the European CENELEC committee for laser safety (CLC/TC76), a member of the IEC/TC76 committee and is the project leader of ISO/TC94/SC6 for laser eye protection.

Roy is accredited in the UK as a Laser Protection Adviser and is co-author of the comprehensive handbook ‘Laser Safety’. In addition to running laser-safety courses throughout the UK and Ireland he has also provided training in the USA and Asia, and has regularly served on the Advisory Board for the International Laser Safety Conference (ILSC). Roy assists RLI in dealing with European safety requirements and his company collaborates with RLI in providing advanced laser-safety Masterclasses in the UK.
R. Timothy Hitchcock, CIH, CLSO, Course Lecturer
Robert Timothy Hitchcock is a certified industrial hygienist and certified laser safety officer with over twenty years of experience in the chemical and electronics’ industries. He has B.A. and B.S. degrees from East Carolina University and a M.S.P.H in environmental engineering from the University of North Carolina.

Tim is a Fellow in the American Industrial Hygiene Association (AIHA), a member of the Nonionizing Radiation Committee of the AIHA, a Senior Member of the Laser Institute of America (LIA), a member of the Board of Directors of the LIA, and a member of the Board of Laser Safety. Tim has served and a member of the Nonionizing Radiation Advisory Committee of the North Carolina Radiation Protection Commission for more than 12 years. He has been a member of Accredited Standard Committee Z136 on laser safety since 1988 and currently serves on three Technical Subcommittees, and two Standards Subcommittees.

He is the recipient of the AIHA’s 2004 Edward J. Baier Technical Achievement Award for the most significant technical contributions to industrial hygiene in recent years. Tim received the inaugural the Friends of the AIHA Press Award in 2000, presented by the AIHA Publications Committee and AIHA Knowledge Group. The AIHA’s Nonionizing Radiation Committee presented Tim with the Distinguished Service Award in 1996 and an Excellence Award for development of the Nonionizing Radiation Guide Series in 1999.
Thomas Lieb, CLSO, Technical Consultant
Along with graduate studies in optical physics and mathematics Thomas Lieb holds BS/BA in Business from the University of Redlands. Working initially in telecommunications, he was involved in the first application of optical communication systems for commercial use. In the early years in the laser industry, he worked to improve the optical design performance of several laser products used in the rugged construction industry. While at major laser companies, he held several senior management positions including; General Manager of a Business Unit; Manager - International Marketing; Manager of Quality and Reliability; and Regulatory Affairs Officer (at a medical-surgical laser company). Thomas Lieb has guided L*A*I since 1988 as President and continues as the company's principal consultant. Since joining L*A*I, Mr. Lieb has managed comprehensive R & D projects, guided integration of laser optical systems, developed management and laser safety training programs, and taught under-graduate engineering courses in Introduction to Laser Technology. In addition to overseeing the company’s compliance design and assembly/integration operations, Mr. Lieb is a board Certified Laser Safety Officer. and regularly consults for safety companies. As a Laser Safety Consultant, he provides both US and EC laser safety guidance, and often fills the role of consultant to Test Houses and Notified Bodies (UL, TUV Rheinland) for the laser portion of EC Mark certification.

Mr. Lieb is a participant in BALSO (Bay Area Laser Safety Officers) and member of the ANSI Z136 Accredited Standards Committee. Selected as Chairman of the Z 136 Sub-committee on Lasers in Manufacturing, Mr. Lieb is also a delegate to AWS C7C; ANSI B11.21; ISO TC 172/SC 9; and IEC TC 76, as well as having been project leader and the principle non-European author of ISO's Safety Standard for Machines Using Lasers in Material Processing (ISO/IEC 11553-1, -2, -3), and has contributed to the subcommittees for Benchmarks on both laser cutting & laser welding. He is currently Chair of IEC/TC 76 WG 10, Secretary of IEC/TC 76 WG 7, Secretary to ISO/TC 172/SC 9 WG 5, and the Technical Committee Liaison for IEC/TC 76. Mr. Lieb has authored a variety of technical papers and articles on industrial lasers, and lasers for use in the EC, including contribution to the textbook Laser Materials Processing, Migliore, et al, 1996 and to the trade publications "Photonics Spectra" and "The Fabricator.", and participated in the compilation of LIA’s guidebook for Best LSO Practices. Mr. Lieb was recently elected to the Laser Institute of America's Board of Directors for the 2010-2012 term, and is also participating on the Board of Laser Safety.
Gregory Makhov, Consultant
Greg Makhov is a lecturer in the RLI Lasers in Art and Entertainment and Lasers in Airspace courses. He has been involved with lasers for the entertainment world since 1977. He is currently Director of Laser Products at Lighting Systems Design, Inc.. Greg has many years of experience with entertainment laser installations at the Disney EPCOT Center in Orlando and other locations. His presentations provide a unique mix of his in-depth understanding of theory and practical "hands-on" experience.
Marcy Moore, Consultant

Marcy Moore is a consultant with over 18 years of regulatory and clinical experience in the medical device industry. She has extensive experience working with FDA and other regulatory bodies, and specializes in 510(k) preparation, submission and strategic planning for new and investigational devices. She has worked with companies both small and large to successfully submit and gain marketing clearance for a wide range of device types.

From 1996-2008, she held the position of Clinical Research Manager at Palomar Medical Technologies, a pioneer in the field of lasers and light-based medical devices. While there, she was responsible for all pre-market regulatory issues involving Investigational and New Devices, including all 510(k) and IDE submissions.

Marcy Moore received her Bachelor (1986) and Master’s (1989) Degrees from East Carolina University.

Gene Moss, Technical Consultant and Course Lecturer
Gene Moss has over 40 years safety experience in ionizing and non-ionizing radiation (physical agents). He has authored over 300 publications and made hundreds of technical presentation in areas of occupational Health and Safety, laser safety, optics, and non-ionizing radiation.

Gene is active on several national health and safety standard setting committees and has a strong background in classroom teaching, performing audits, and making hazard evaluations. He has served as the Laser Safety Officer and Radiation Safety Officer at the research center of Corning, Inc. for the last 10 years. Previous work has been with the National Institute for Occupational Safety and Health, University of Cincinnati, Food and Drug Administration, Department of Defense, and the Virginia Commonwealth University.

Gene is also a member of many ANSI Z136 Safe Use of Laser sub-committees (both standard and technical) and is the chair of the Non-Beam Hazards Technical Sub-Committee.
Barbara V. O’Kane, CIH, CSP, CLSO, Consultant

Barb O’Kane began her laser safety career 20 years ago while working as an industrial hygienist/safety professional for Colorado manufacturing companies. She earned her Environmental Health, Masters of Science degree from Colorado State University. Throughout her career she has focused on educating workers about hazards in the workplace and helping employers effectively mitigate risk.

Barb is a Certified Industrial Hygienist, Certified Safety Professional and Certified Laser Safety Officer. She is currently an executive board member of the American Industrial Hygiene Association, Rocky Mountain Section.

Patricia A. Owens, RN, BSN, MHA, CMLSO, CNOR, Course Lecturer

Patti Owens provides consultation services in the areas of aesthetic and medical safety programs along with in-office management services. She has been the Nursing/Allied Health Chairperson of ASLMS and in 1999 and 2014 received the Nurse Excellence Award. She served a three year term as the ASLMS Nursing-Allied Health Representative to the board and is presently the Laser Safety representative for 2013-2016.

Patti is a national consultant for a variety of laser companies and professional organizations including appointment as the principal medical and aesthetic instructor for Rockwell Laser Industries. Patti also has been an active member of the Laser Institute of America (LIA) and presently is involved with the Board of Laser Safety redesigning the LSO national certification examination. Patti is an active member on the ANSI Z136.3 committee where she has been appointed as the acting secretary. She also serves as a member of the International Electrotechnical Commission (IEC) TC 76 WG4 and ISO/WG12 committee.

Patti Owens is presently working with a plastic surgeon as an aesthetic nurse and surgical consultant in Rancho Mirage, CA. Patti’s previous employer for 11 years was a dermatologist in Olympia, WA. Patti’s experience also includes 13 years’ experience as a Laser Manager at a major hospital in in Olympia, WA. Her responsibilities included program development, education and supervision of 13 laser systems, implementation of the laser perioperative role, development of a multi-system laser in-house and mobile program, and enforcement of safety policies as the facility’s acting Laser Safety Officer.

Patti received her BSN from the University of Colorado in 1976 and graduated with her Master’s degree in Health Administration from Chapman University in 1996. Patti Owens is well published in numerous clinical journals. Her co-authored book with Pamela Hill, Milady’s Aesthetician Series, Laser and Light Therapy, was published in 2009 by Cengage Learning.

Jay Parkinson, Consultant
Jay Parkinson is an internationally recognized laser safety specialist with over 19 years of experience working in laser safety.

Jay has a wealth of practical knowledge concerning the application of laser safety to manufacturers and users in the areas of entertainment, consumer and commercial goods, industry, medicine, education, and telecommunications. He has extensive experience performing facility audits in industrial and research settings, designing custom laser safety programs, and teaching in laser safety training courses. His specializes in assisting manufacturers with compliance of national and international laser product safety performance requirements.

Jay is a Certified Laser Safety Officer with a B.S. in Physics from the University of Washington. He serves on the IEC technical committee (TC 76) that is responsible for the international IEC 60825 series of standards. Jay also participates on a variety of ANSI Z136 committees and is chairman of the Z-136.10 Committee which is drafting the new standard for the safe use of lasers and laser systems in entertainment, display and exhibitions. He has also been a member of the Laser Safety Hazards subcommittee of the G-10 Aerospace Behavioral Engineering Technology Committee.

Jay has served as VP of Operations and as Laser Safety Officer for a laser display and special effects company that was considered the world leader in their field. After leaving the special effects and display industry he has worked as the primary standards consultant for Rockwell Laser Industries (RLI).
Randy Paura, P. Eng., CLSO, Consultant-Laser Materials Processing

Randy has been a Professional Engineer of Ontario, Canada since 1991. His engineering skills include practical applications of innovative solutions and providing mission critical team leadership for project execution, on time, within budget and exceeding performance objectives.

He has over 30 year of experience in applications engineering, materials processing and special purpose machine design and build for industrial automation. His expertise in this field has grown into macro-laser materials processing and safety consulting.

He is currently serving as Vice-Chair on the ANSI Z136.9 “Safe Use of Lasers in Manufacturing Environments” and is a member of the American Welding Society, Subcommittee on Laser Welding (AWS C7C).

Randy graduated with First Class Honours in May 1989, University of Waterloo, B.A.Sc. in Civil Engineering with a minor in Management Science. He is also a lifetime member of the Laser Institute of America (LIA) and a former member of the Board of Directors for the LIA.

Martin S. Piltch, Ph.D., Course Lecturer
Martin Piltch serves as a lecturer and technical consultant for RLI. He received his AB (Physics) from Columbia College in 1960, MS (1968) and Ph.D. (1971) in Physics from the Polytechnic Institute of Brooklyn and an MBA (1980) from the Robert O. Anderson School of Management of the University of New Mexico. He was also a Senior Visiting Scientist at the Max Planck Institute for Quantum Optics in Munich, West Germany and a Visiting Professor at St. Andrews University in Scotland.
William P. Roach, CLSO, CHP, NRRPT, Course Lecturer and Consultant
Lt. Colonel William P. Roach is the Deputy Commander, Detachment 5, Air Force Research Laboratory. He also serves as the Chief, Radiofrequency Branch, Directed Energy Bioeffects Division, Human Effectiveness Directorate, Air Force Research Laboratory. Lt. Colonel Roach is a Diplomat of the American Board of Health Physics, certified (by examination) National Registry of Radiation Protection Technologists, a Certified Laser Safety Officer (by examination) by the Board of Laser Safety, and is rated as a Chief, Biomedical Science Corps Officer.

Lt. Roach graduated with his Ph. D. in physics from the University of Missouri-Columbia in 1990 and has went on to hold membership in professional organizations such as the LIA (Elected Member of the Board of Directors), International Society for Optical Engineering, and AF Surgeon General Delegate to the Tri-Service Panel on Directed Energy Weapons. Lt. Roach holds distinction as a Senior Member of the LIA and a Fellow of The American Society for Laser Medicine and Surgery.
Benjamin A. Rockwell, Ph.D., Consultant
Benjamin Rockwell serves as a consulting scientist and lecturer for RLI. He graduated in 1986 with a B.S. in Physics from Central Missouri State University and was awarded his Ph.D. in 1991 from the University of Missouri at Columbia. He joined the Optical Radiation Division of the Air Force Armstrong Laboratory, Brooks Air Force Base where he has conducted research specializing in the bioeffects of ultrashort laser pulse interactions. Ben is currently serving on the executive committee of the ANSI Z136 committee.
Dr. Fred P. Seeber, Course Lecturer
Dr. Fred P. Seeber, past director of the Laser Institute of Technology for Education and Research and professor emeritus of Photonics/Physics, Blackwood, NJ is the Chairman of the Z-136.5 ANSI committee which published a new laser safety standard for educational institutions. Dr. Seeber also serves on the general committee of the ANSI Z-136 for laser safety. Dr. Seeber has authored many articles on laser safety and is a co-author of a new text in photonics entitled "Fundamentals of Light and Lasers" published by CORD Communications, Waco, Texas. He has lectured throughout the country and abroad on laser physics, laser applications, laser safety and medical applications of lasers.

He holds a doctorate in Physics and Education from Rutgers University and is a Fellow and past director of the Laser Institute of America. He serves on the LIA Board of Laser Safety. Dr. Seeber is a primary consultant for the US government and many hospitals on lasers and laser safety. He is a member of the American Institute of Physics, LIA, OSA, SPIE and the Institute for Applied Laser Surgery.
Darrell Seeley, CLSO 1950 - 2016,

RLI Vice President and Consultant, Darrell Seeley worked for more than 17 years in laser safety and laser safety training and amassed many accomplishments over that time. Darrell was one of the first nine persons in the U.S. to become a Certified Laser Safety Officer (CLSO) and was a member of the Board of Commissioners of the Board of Laser Safety. He was also a member of ANSI Accredited Standards Committee ASC Z136 Safe Use of Lasers as well as various Z136 subcommittees, and a past member of the Board of Directors of the Laser Institute of America (LIA).

Darrell was Professor of physics at the Milwaukee School of Engineering in Milwaukee, WI, for 22 years, and worked as visiting laser scientist with the U.S. Army Aberdeen Proving Grounds, Cedar Sinai Medical, and the Austrian Research Centers, Seibersdorf, Austria.

Dave Stefanovsky, Consultant
Dave has been involved in the medical laser arena since 1982. He has been instrumental in the technical instrumentation and development of photodynamic therapy centers in the Midwest. He is now associated with a major healthcare facility in the Midwest and was formerly associated with the Cincinnati Jewish Hospital and Laser Sonics. He is the president of Stefanovsky and Associates, Inc., developer of various patient eyecups and guards for use during laser therapy. Dave is a graduate in the electronics and electro-optics technology programs from both Texas State Technical Institute and Cuyahoga Community College.
Carol A. Tomczyk, Ph.D., CLSO, Consultant

Carol A. Tomczyk, Ph.D., CLSO has over 35 years of experience working with various types of lasers, optics, and detectors in very diverse environments and a wide range of disciplines.

Most recently, she was the site LSO at a company developing and manufacturing laser-based portable and handheld chemical analysis devices for use by Emergency Responders. Carol also spent 10.5 years at a leading-edge manufacturer of semiconductor lithography equipment where, she developed high power UV lasers for use in microlithography applications in Class 1 clean room environments. While there, she also conducted laser damage and materials outgassing studies. Before that, she managed the Facility for Laser Spectroscopy in the Chemistry Department at Cornell University, where she coordinated laser use and safety training for six research groups engaged in a wide variety of Physical Chemistry and Biophysical Chemistry research projects.

Her Ph.D.in Physical Chemistry is from The Pennsylvania State University, her M.S. in Physical Chemistry is from New York University, and her A.B. in Biochemistry is from Smith College.

Sheldon A. Zimmerman, Course Lecturer and Consultant
Mr. Zimmerman is an internationally recognized expert in Laser Safety currently managing the Laser System Safety Technical Direction Agent Program at a Navy laboratory. He is convener of the IEC TC 76 Working Group 3 on Laser Radiation Measurements and the chairman ANSI Z136.4 Subcommittee for the American National Standard Recommended Practice for Laser Safety Measurements, Hazard Evaluation, and Instrumentation.

Mr. Zimmerman has worked on the NATO STANAG 3606 committee for range laser safety and with the Society of Automotive Engineers (SAE) G-10T Subcommittee on Laser Safety to help develop the Federal Aviation Administration Order 7400.2D, which provides guidance on laser exposure levels near airports.

Mr. Zimmerman is a Fellow of LIA, a member of the LIA Board of Directors, and has been published in the Journal of Laser Applications and Proceedings of International Laser Safety Conferences. A graduate of the University of Wyoming, Mr. Zimmerman also holds certifications such as CLSO, Navy Laser Safety Specialist, and Navy Range Laser Safety Specialist.
Tony Zmorenski, ASP, CSP, Consultant
Tony Zmorenski is recognized by his peers as having significant experience in the safety of lasers field as applied to the entertainment and out-of-doors environments. He currently serves as the Principal Safety Professional and Laser Safety Officer for one of the world's finest theme parks in Orlando, Florida. Tony contributes his expertise by serving on the ANSI Z136 ASC, Control Measures Subcommittee of ANSI Z.136.1 Committee "For the Safe Use of Lasers" and also serves on the ANSI Z.136.6 "For the Safe Use of Lasers Out-of-Doors" Committee. He is a Certified Safety Professional, Professional Member of the American Society of Safety Engineers and a Member of the National Fire Protection Association.