Those E21A are very interesting. Imagine a 20mm triple under Carclo optics. Unfortunately this would need a special MCPCB. For good heat transfer a special AlN Board would be nice, or a direct cathode MCPCB combined with a special driver that switches battery+, so that the board wouldn’t have to be isolated.
3x E21A and Carclo 10511 should make a very nice beam, smooth but with some throw.
That beeing said, I would expect the NCSL219B-V1 R9080 to be quite similar concerning beam characteristics under those 105xx Carclos, but much easier to implement.
I just built up a Convoy S2 using one of the sm503 9050 219C. Looks pretty nice to my eyes, but it’s hard for me to tell as I’m red/green colorblind. I wouldn’t mess with high CRI for myself, this is for a friend who will enjoy the CRI. It does appear to be a wonderfully neutral white though.
Thx for the AlN idea Chouster, will think about it.
Carclo 10511 designed favourably towards Cree XP-G in the first place (0,73mm focal plane). The rest of the emitters will need some adjustment in optics’s peg height. E21A paired with 10511 isn’t as tight as it potentially could. The problem lies in much lower focal plane in E21A 0,27 - 0,3mm +/- 0,05mm (height vary with different CRI). Compare this to 0,4mm in NVSx219C/NCSx219B-V1/NVSx219B-V1.
We all know that domeless emitter with the same die shape should have much tighter beam. But from this beamshots, the difference is only marginal. Approx. 1 degree tighter compared to 219C (the same die as E21A).
Cree XP-L HI usually have ~20% tighter beam compared to XP-L HD in any TIR optics.
Yes, I got them pics from Carclo’s website.
I don’t think they mixed it with NCSL, it’s what it is.
Beam angle order in 10511: 219B - E17A - E21A - 219C - 319A (weird huh?)
If we follow common sense based on die area geometries it supposed to be like this: E17A - E21A - 219B - 219C - 319A
So far, the only explanation logcal to me is in their focal plane (die height) differences. Anything lower than ~ 0,6mm - 0,73mm (XPG) will off focus. 219B, 219C, and 319A are all have 0,4mm focal plane. That’s why their sequence looks OK.
We were talking about 10511. And in that particular optics the cd/lm number looks normal.
The latter optics you posted indeed has too much difference for such a slight difference in die area (219C vs. 219B)
Yup, that’s right. Sorry, I was talking about the 10511 indeed. But when I looked at the numbers from other optics that’s when I realized that something isn’t right about those numbers. Not that clear when you just look at the 10511’s numbers.
Swapped xpg3 90cri out for nichia 219C sm503 in a triple x6 and it looks great with no green. As noted by TA, maybe slight blue if you are sensitive to CW but in general a very pure white.
The 4000k is just slightly warmer than I like and the 5000k slightly cooler. I’m going to try 2 of each when I rebuild my s41 and see how that turns out.
Thanks Illuminos for the report. I just want to know who else got the green other than Mustsimon.
How is it compared to XPG3 90CRI? I mean real world colour reproduction?
In response to the request for sm503 impressions, I gave mine before, but I’ll add some white wall comparisons. I do like these emitters, but I thought I was going to love them. I’m not sure if it’s just that nothing can compare to the 219B R9080, which is a warm fuzzy feeling turned into photons or if they’re actually a little off. The 319A looks maybe a hair cooler, but no green. I think it’s even a tiny bit rosy, but it’s hard to be sure since it’s behind an AR lens.
So here’s a 319A sm505 on the left and a 219C sm503 on the right, taken with my Nexus 5 with the white balance set to 6500K. Note that I don’t think the numbers indicated for the white balance correspond to reality - that’s just the setting that seems to produce images that match what my eyes see.
Here’s the 219C sm503 next to the 219B sw45k with the same white balance setting: