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Recent Publications

  • Bergen, A.S.J., Blattner, P, “Definition and Determination of the Beam Axis and Beam Angle of Complex Luminous Intensity Distributions”, accepted for proceedings of the CIE Midterm Meeting, to be held at Jeju Island, South Korea, October 2017.
  • Bergen, A.S.J., Jenkins, S.E., Tissot, L, “Influence of air speed on photometry of LED lighting devices”, accepted for proceedings of the Metrology Society of Australasia, 14th Biennial Conference, Brisbane, Australia, September 2017.
  • Bergen, Tony, Young, Richard, “50 years of development of light measurement instrumentation”, Lighting Research & Technology, to be published – Invited paper for a special edition celebrating 50 years of LR&T.
  • Bergen, A.S.J., Cupitt, A., Cowling, I., Budovsky, I., Georgakopoulos, D., Jenkins, S.E., “High Accuracy Calibration and Use of Power Analysers for Measurement of Solid State Lighting Devices”, Lighting Research & Technology, February 2016; vol. 48, 1: pp. 35-43 – Invited paper for a special edition from the CIE Session in Manchester.
  • Gassmann, F, Krueger, U, Bergen, T, Schmidt, F, “Comparison of luminous intensity distributions”, Lighting Research & Technology 1477153515614613, first published November 4, 2015.
  • Jacobs, V., Blattner, P., Ohno, Y., Bergen, A.S.J., Krüger, U., Hanselaer, P., Rombauts, P. and Schmidt, F., “Analyses of Errors Associated with Photometric Distance in Goniophotometry”, CIE 216:2015: Proceedings of the 28th Session of the CIE, Volume 1 Part 1, pp 458-468.
  • Bergen, A.S.J., “Validation of the use of Zero-length Photometry in the Goniophotometry of Solid-state Lighting Devices”, CIE 216:2015: Proceedings of the 28th Session of the CIE, Volume 1 Part 1, pp 450-457.
  • Bergen, Tony, “Calibration of Illuminance Meters”, Invited Article, Lab World Magazine, Vol 4 No. 1 Aug-Oct 2014.
  • Bergen, A.S.J., “A Practical Method of Evaluating Uncertainties in Chromaticity Values Derived from Spectral Measurements”, CIE x040:2014 Proceedings of CIE Expert Symposium on Measurement Uncertainties in Photometry and Radiometry for Industry, pp 7-17.
  • Bergen, Tony, “Standardisation of LED Photometry”, Invited Article, Auto Tech Review, January 2014.
  • Bergen, Tony, Blattner, Peter, “Developments in Photometry of LEDs and OLEDs”, Invited Article, LED professional Review Magazine, Issue 41 Jan/Feb 2014.
  • Bergen, A.S.J., Jenkins, S.E., “Determining the Minimum Test Distance in the Goniophotometry of LED Luminaires”, CIE x037:2012 Proceedings of CIE 2012 Lighting Quality and Energy Efficiency, pp 337-343.
  • Bergen, Tony, “Measurement Uncertainty in Integrating Sphere Photometry”, Invited Article, Lab World Magazine, Vol 2 No. 3 Feb-April 2013.
  • Bergen, Tony, “Fundamentals of Lighting: The Luminous Intensity Distribution”, Invited Article, Lab World Magazine, Vol 1 No. 4 May-July 2012.
  • Bergen, A.S.J., “A Practical Method of Comparing Luminous Intensity Distributions”, Lighting Research and Technology, March 2012 vol. 44 no. 1 27-36 – Invited paper for a special edition from the CIE Session in Sun City.
  • Bergen, Tony, “A Practical Method of Comparing Luminous Intensity Distributions”, Light & Engineering Vol. 20, No. 2, pp. 78-84, 2012 (Svetotekhnika No. 3, 2012).
  • Bergen, A.S.J., “A Practical Method of Comparing Luminous Intensity Distributions”, CIE 197:2011 Proceedings of the 27th Session of the CIE – Sun City, South Africa, 9-16 July 2011, Volume I, pp 178-185.