Standardisation requirements and safety concerns drive developments in LED test and measurement
As measurements and standards catch up with the explosive growth in the development of LEDs, the UK's National Physical Laboratory is well placed to advise on best practice in measurement, and to carry out accurate and traceable measurements.
LEDs now come in a wide variety of wavelengths (UV through the visible to IR), brightness values (for example 140 lm flux from a single green LED produced by Lumileds and formats (single packaged LEDs, multiple LEDs in clusters, and even novel technology including LED backlights and organic LEDs). It has been shown that differences in inter-industry measurements are still large and yet it is necessary to measure LEDs in a precise, accurate, well-defined and, we would say, traceable manner.
To read the rest of this article, please register for a free subscription to LEDs Magazine Review.Why?
Existing subscribers:Click here to enter your reader number and download the new issue.