Using optimum measurement conditions and the most appropriate accessory, very high accuracy spectrophotometry is possible using a modern, industry-leading commercial instrument like the PerkinElmer LAMBDA 950.

• A choice of accessories - Allows you to perform highly reproducible measurements at an accuracy level comparable with that of metrology laboratories.
• Double Aperture accessory - Used to calibrate the ordinate scale of the spectrophotometer resulting in an absolute scale with a non-linearity error less than 0.05%
• Directional VW and directional IV accessories - Offer the highest possible accuracy for the calibration of reflectance standards and laser mirrors at oblique as well as near-normal incidence

Presenter: Dr. Peter A. van Nijnatten is the program manager of the Optical Measurements and Testing department at TNO Science and Industry, the Dutch organization for applied scientific research. He received his MSc degree in physics from the University of Delft (Netherlands) and his PhD from the Oxford Brookes University (UK). Dr. Nijnatten has been at TNO for the last 20 years of his 25-year involvement with metrology, and is responsible for the technical and scientific content of over 250 projects. He is vice chairman of the technical experts committee, TC10 "Optical Properties", of the International Commission on Glass, and is the founder and leader of OMT, the Optical Measurements and Testing group at TNO. OMT's mission is to provide the industry with state-of-the-art solutions for optical measurements and testing. It has developed and produced some of the unique spectrophotometer accessories that are currently available for the PerkinElmer LAMBDA Series. In addition, Dr. Nijnatten and his group provide customized measurement solutions and training to PerkinElmer customers.

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