【Introduction】:

The angle dependent electroluminescence (EL) measurement system can measure and analyze the luminous characteristics of LED components at different angles, mainly used to study whether LEDs belong to Lambertian radiators (i.e. cosine radiator: a radiation source whose radiation intensity follows the cosine law as the angle between the observation direction and the surface source normal changes; the radiation brightness in all directions of the radiation source remains unchanged).

Angle dependent EL measurement system

Schematic representation of test results

Schematic of the software user interface

【Product applications】:

【1】 Nature 2018, 562, 249

【2】 Light: Science&Applications 2020, 9, 89