A nice source for rebel leds plus sinkpad! thanks for sharing, Hank!
Now, everybody, email their contact, say you read about them here, and hey, they could really get some creative designing done with their products, encouragement all ’round. Maybe they’d consider a BLF/CPF discount, or a one time special buy, or some cooperative effort — their designers ought to be here already (maybe they are?)
I’d bet the 10mm square boards would also make a nice array on a linear or square substrate, allowing whole new shapes.
Anyone tried using a half-cylinder lens over a strip of emitters, say? ”
“Cylindrical lenses … focus light along one axis …. They are used in transforming a point into a line or vice verse.”
The vice versa would be interesting — hmmm, a line of 10mm squares with their output focused into a single point might add up to bright?
And flip then lens away for flood, of course …
A cylindrical lens focuses only in one axis. In the direction of the cylinder axis the light would spread out like from bare leds, so the result would be a line of light.
Seems to me a hexagonal MCPCB would be more useful.
I got early samples of the Sinkpad2s because I asked if they might have Sinkpads some day — they were delighted to say “why yes and very soon” — so I’d bet they will be responsive to questions about buying the bases. They have listed their older bases for sale bare, all along: http://www.luxeonstar.com/rebel-led-mounting-bases and they do say, everywhere, ask if you don’t see what you want.
Thanks.
What optics are avaliable for this?
Glad to see that Luxeon Star has improved their offerings (and prices) it’s still pricey but it was definitely more expensive the last time I looked.
@Dan, see below:
Polymer Optics 7 LED Cell Cluster Concentrator Optic
Polymer Optics 12° 39 mm Circular Beam Optic - Integrated Legs
Polymer Optics 12° 39 mm Diffused Circular Beam Optic - Integrated Legs
Khatod 13° 39 mm Circular Beam Optic - Integrated Legs
Khatod 20° 39 mm Circular Beam Optic - Integrated Legs
Khatod 30° 39 mm Circular Beam Optic - Integrated Legs
Polymer Optics 50° 39 mm Circular Beam Optic - Integrated Legs
Polymer optics and kahtod do optics to suit, they are listed further down the page you linked to.
I preferred the polymer optics offerings. For beam shots do a search on mtbr forums ‘bikelights diy’ should find what you are after.
Here is an article about PC amber outdoor lighting, to replace high and low pressure sodium lights. Less lumens per watt than cool white, but less environmental impact (light pollution).
Added: Redirect Notice
I now have a deep red, a lime and a PC amber in 18650 zoomies and another deep red in an SS-5049 2 x AAA light.
Wonder where they got “PC”.
Fritz t., can you try that link again? I’d like to see that article you mentioned.
(My city — despite more than a year trying to educate them about this — is installing very blue-white LEDs, and claiming they’re following dark sky guidelines; I don’t know if they’re lying intentionally, or trusted and got fooled by a clever salesdroid.
I know the broad spectrum of the ‘white’ emitters scatters more, and is worse for astronomy, than the filterable narrow spikes from sodium vapor amber lights.)
Where they got “PC” —
LUXEON® Rebel Phosphor-Converted (PC) ….
It’s a blue emitter, with each color type coated with a phosphor designed to emit that one specific band/color
(rather than with several phosphors selected to cover the spectrum and give ‘cool’ or ‘warm’ ‘white’
Sorry, I failed to copy the link when I made the post and I can’t find it now. It was about the Canary Islands, but mentioned regulations in other places.
among much else also of interest
I found it (“Rationale for the future change to led technology for outdoor light in La Palma”): Redirect Notice
This short article explains the choice of PC Amber LEDs to replace sodium vapor arc lights in outdoor lighting.
That was fun reading, I like non-regular information like this. :-)
I put my PC Amber in a Light similar to a Yezl t9, with four 7135s. To deal with the hollow pill, I filed the tails side of a 1960 penny flat and then filed the outside till it is a slight interference fit in the pill and filed notches for the wires, then epoxied it to the back of the star, using the pill to locate them. I used a lot of of non-silicone heat sink compound. It is not as bright as my Lime one, probably because green light has more lumens per watt than yellow does.
Guys, I’m looking for the 3 color rebel’s that will give the widest wavelength. I’m thinking for sure Red-orange and Lime, what blue spectrum emitter is the best, plain blue, Royal blue or another?
I want to make white light that looks the most true possible without a dedicated white emitter / die, This will be in an S10 with Dr jones FW and a KL driver, should be a surprisingly cheap build (I did get the host for $25).
PC amber might give a flatter spectrum than red-orange and should still come out white with lime and blue. Not sure which blue would be better. Royal blue to be able to see things that are really royal blue colored if the lime fills in the greenish side of blue, or plain blue if that would leave too big a gap.
I have actually never used a “blue” emitter, in all my RGB builds (and a few blue only, all using Cree’s) I’ve always used royal blue for the near-UV qualities (making stuff glow).
I considered Amber, I wish I could fit a quad optic, but I absolutely need the real red. If lime wasnt so good I would think about red-orange, cyan and royal blue but I really want the two [red-orange and lime].
Whats the max driver current on a sinkpad? I’m thinking I’ll drive them around 500-700mA each unless thats the max, then maybe only 350mA each.
I don't think it matters much which blue you choose, there's some nice info on colour mixing in this Philips video (btw clearly promoting their lime led):
Another philips video I found even more interesting is how to combine a cool white led with a lime led and a red led to mix white light with a whole range of colour temperatures and high CRI:
If you build that into a flashlight and design the correct (very fancy) firmware for it, you can adjust the light to all colour temperatures white light in high CRI.
BTW, fish tank lovers are way ahead of us in colour mixing. One example, just follow this discussion 
:
It may not be a good source for you (EU-based) but I recently bought some colour leds here, and guess what: they aim at aquarium lovers:
http://www.domeanima.pt/index.php/hp-leds.html
Cheers