3 projects
Metrology for solid state lighting

LED lighting has a specific technology: - its optical performance and lifetime depend on the junction temperature of the LEDs and evolution over time is manifested by a very slow decline in the emitted flux  - LEDs have specific radiation spectra with a blue peak for the most common technology  - radiation is produced on small surfaces with no optics of concentration and therefore can be seen by the human eye with as very high intensity source points  - LEDs require specific electronics to be able to operate with electrical characteristics poorly taken into account in current measurement me