The light source: 190 high power LEDs in NIR. I have the datasheet of the LED.
I want to make a graph showing the spatial distribution, and to measure the intensity of the beam on the whole field of view.
Actually, I used to work with this light source without defining the exact distribution. According to the datasheet of the LED, I know that the radiant intensity is approx 500W/Sr.
Someone can suggest me a setup or a protocol to get the informations I want? Furthermore if someone heard about a powermeter that could help me.