Talking Photometry is a technical blog from Photometric & Optical Testing Services in the UK that helps you keep up to date with developments in LEDs, solid state lighting and the world of photometric measurements.
If you’re interested in the technical aspects of light sources and light measurements this blog is well worth a visit.
Included among recent postings are topics such as:
What is “Flicker” and why is a problem with SSL?
Measuring colour uniformity of LED arrays
LED colour zoning
Colour difference metrics
Are halogens history?
Understanding photometric data files
Claimed vs. actual CCT
Useful lumens and Energy Efficiency Index (EEI)
Guide to colour rendering
Guide to Correlated Colour Temperature (CCT)
