If you want to quickly assess the health of an industry, one option is to take a brief look at the progression of its conferences. In the case of the euroLED conference series and the sector of the III V industry that it supports, this approach provides an excellent overview of current trends. The inaugural euroLED meeting held in the UK back in the early noughties was a very small affair, but over the years the conference has moved to larger premises, first to the National Motor Museum in Birmingham and more recently to the Ricoh Arena, part of a complex that is also ho...