PhotonWrangler
Flashaholic
I purchased a small Lamina Ceramics LED array. This is the same unit that's in that LED worklight that's going for $50 right now. It's rated at 108 lumens at 5500k.
One of the things I usually check with white LEDs is the reaction of the phosphor coating to both blue and NUV LEDs. It seems that all white LEDs fluoresce an orange-ish color under blue LED illumination, which is what I would expect. Most of them have little fluorescence under a 395nm NUV LED though.
When I tested the Lamina with the NUV LED, I found that the phosphor fluoresced with the usual orange-ish glow under blue illiumination, but it flouresced a brilliant yellow under the NUV LED. I've only seen this in one other LED, a 5mm unit that had an unusually crisp white appearance when illuminated. I'm hoping the Lamina array will look similar to this when I power it up.
One of the things I usually check with white LEDs is the reaction of the phosphor coating to both blue and NUV LEDs. It seems that all white LEDs fluoresce an orange-ish color under blue LED illumination, which is what I would expect. Most of them have little fluorescence under a 395nm NUV LED though.
When I tested the Lamina with the NUV LED, I found that the phosphor fluoresced with the usual orange-ish glow under blue illiumination, but it flouresced a brilliant yellow under the NUV LED. I've only seen this in one other LED, a 5mm unit that had an unusually crisp white appearance when illuminated. I'm hoping the Lamina array will look similar to this when I power it up.
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