For the knowledgable, can you please explain why some diodes come in single wavelengths as in 630nm 660nm and some of them are multiple such as 430-475nm and 620-630nm? What are the advantages of putting together a light like this? Do the individual diodes peform the same way?
It is simply a way for companies to claim a wider range of wavelengths. All diodes have a single peak wavelength. The exact wavelength varies from brand to brand and bin to bin. Generally LEDs produce 90% of their spectral output in a +- 10 nm range. So for example.: if the diode is a 630nm rebel LM03 red diode 90% of photons released from the diode will be withing the 620 to 640nm wavelength range.
I didn't wanted to open a new thread and since it's related, I'm going to ask: What ratio would be a suitable for a DIY led setup? I'm thinking of 1 FarRed(730nm): 4 HyperRed(660nm)+Red(630nm) : 1 Blue(430nm)+DeepBlue(460nm)
Some values are approximate. The 730's are for the Emerson's effect. Any recommandation will be greatly appreciated!
Personally, I would toss in a few cool and warm whites to give a smoother transition and hit accessory pigments. Likewise, I use a closer to a 3:2 ratio for 660 to 630.
Personally, I would toss in a few cool and warm whites to give a smoother transition and hit accessory pigments. Likewise, I use a closer to a 3:2 ratio for 660 to 630.
