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  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 active in the American Society for Laser Medicine and Surgery and is a former member of the editorial advisory board of Laser Nursing Journal. Judy serves as principal lecturer for the RLI Medical Laser Safety Officer course.
 
 
 
 
  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 based in the UK, where he provides laser safety consultancy. His background is in optical physics, and he has been involved in medical, commercial and industrial applications of lasers since the 1960's. He lectures widely on laser safety, and provides safety support and training to both users and manufacturers of laser equipment. Roy is actively involved in international standards work in IEC and ISO, where he led the project team that has developed a new international User's Guide for the safe use of lasers. He is also the co-author of the book "Laser Safety".
 
 
 
 
  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.