As I see it, the higher the CCT, the closer the theoretical black body peak gets to the LED. You don’t need the phosphor to produce as much red, and you don’t need to trade off as much blue to get your other colors.
Up to about 4000K, the black body peak happens beyond the human visual range, but the phosphor peaks happen within the visual range, so their output is declining as wavelength increases in a range where the theoretical target needs increasing output as wavelength increases.
Your eyes are so insensitive to this wavelength that the height of that peak has relatively little influence on tint and CRI. And correct if I’m talking nonsense but keeping that peak a little higher may provide some compensation for the cyan dip. In any case, if it is better to lower that peak the best way is adding more phosfor so that it is converted to greens and reds instead of wasted inside a filter.
Djozz, theoretically, I agree with your every word. What I mean is that since the amount of phosfor is a given, i wonder if there is any measureable difference in tint/cri? I have these lee filters and a 3x 5000k optisolis mule, so I’ll try to see if there is any visible difference, but I also interested in measurements
What I observed was that there was an obvious difference between a 5k optisolis and 5k e21a in the blue/green range.
Sorry for the empty product pages. I’ll post some images ASAP. But I’m sure most BLFers already got the information. One of the most important image is the lens arrangement for JetuE17A and JetuE21A. I will also add more optics in the JetuE21A package for you guys to play with (4 pcs in total instead 3pcs). As for Jetusolis, I will only include same spare optics since everything else don’t work with it.
Contact him or fill his interst list about it. I can ship yours to him. I still haven’t ship his order plus my personal calibrated Jetusolis too. You can PM me about the shipping cost arrangement.
I see a couple of heads from something larger in there. Is there a Jet-1 (AA) version being prototyped?
I’m interested in a couple different CCT’s each of the Optisolis and E21A mounted on MCPCB’s, plus optics to modify my E05’s. Are you prepared to offer those currently, and if so how do we order them?
If you’re not prepared to offer those parts separately yet, that’s perfectly fine, too. I can wait to place my order.
Yes, it’s the bigger twisties for my own testing. They’re reflectored lights, still looking for TIR replacement for them.
You can order the lens separately, just PM me what you need.
Yes, it’s the bigger twisties for my own testing. They’re reflectored lights, still looking for TIR replacement for them.
You can order the lens separately, just PM me what you need.