An objective method for measuring VDU flicker

International standards require that VDU products should be flicker free to at least 90% of the user population. There have been many methods proposed to achieve this objective. However, it is extremely difficult to make comparisons between the various methods due to the variability of data obtained from psychophysical experiments and the lack of a common quantifiable reference. This paper describes an objective flicker measurement technique that provides such a reference and also two experiments designed to validate the measurement accuracy.