Scientists throughout Asia are using the Absolute Luminous Flux Integrator (ALFI) from Photometric Solutions International to improve the energy efficiency of LEDs and related devices. Using the ALFI and electrical measurement apparatus, the luminous efficacy of LED modules is measured and can be optimised.
The Absolute Luminous Flux Integrator measures luminous flux absolutely, which is a tremendous advantage over integrating sphere photometers that require many different calibration sources. This results in a much greater confidence in measurements. It can also measure the luminous intensity distribution and beam width of small sources.
The ALFI is being used to measure many different types of lamps, from conventional sources to LEDs, OLEDs, carbon nanotube devices and other cutting edge technology sources. Devices range from individual LEDs to photometry of LED clusters and flat panel displays.