New answers tagged

6

A few points that don't fit into a comment but could help you: Get a better laser source than a 4 \$ laser diode. "Better" means a laser with higher beam quality. When you look at a laser's data sheet, it should specify a value $M^2$ or "BPP" (beam parameter product). Both these numbers are related, the smaller they are, the better you ...


0

Indeed you need a spectrophotometer to analyze the spectrum of the light emited by the LED. However a spectrophotometer will not give you "color information" but only a spectral power distribution, something that looks like this: Or like this: Or even like this: Keep in mind, however, that this is not "color information" but only a ...


1

The answer is YES for monochromatic LEDs and "not really" for Phosphor-converted LEDs. Monochromatic LEDs can change a lot in color depending on the operating temperature, with probably the worst ones being the Amber LEDs (590~600nm) that shift from amber-yellow to red when heated. Since you are talking about "white" LEDs, you are talking ...


Top 50 recent answers are included