Options for high power RGB color mixing

[SRT Mike]

Anyone have experience with high output (around 2000 lumens total combined) RGB light panels?

I am looking to make a wide angle light and the primary concerns are

size (thin as possible)
color mixing (as little color fringing as possible)
cost
efficiency (means less heat per unit light, obviosuly)

It seems that the Lumileds Luxeon Rebels are hard to beat in terms of size as well as lumens per $. But having, say, 30 rebels would introduce color mixing issues I would think. There are things like the phlatlight CBM series that will give 2500 lumens from a single chip, but that doesn't approach something like a Rebel for lumens per dollar.

I notice that the DJ/club lighting industry is still mostly using 5mm LED's with some 1W and 3W various LED's, but they don't seem to be using any RGB's, just discrete colored LED's and mixing the output.

I heard Cree has a new high power RGB LED but I don't know the specs.

Anyone here doing any high power RGB stuff?

 

[spencer]

Rebel I think is the best way to go in that output class right now. It has better output than Cree and is better quality than some of the Chinese no name stuff. There are different output classes like 5mm LEDs and Phlatlight but I would go with the Rebels.

I don't know much (anything) about the colour mixing and fringing so I will let someone else chime in.

 

[Ekke]

Cree has 2 options:
http://www.cree.com/products/xlamp_mce.asp
http://www.cree.com/products/xlamp_xpe.asp

Don't know how even light you can get with those XP-Es, there are MCPCBs like this, but DIY could be better:

MC-E has white also, and not so powerful colors (if compared with same electric power with XP-E) so it isn't that good option in my mind..

Btw. is 100lm blue as bright as 100lm red or green (to eye)? Those MC-Es have kinda odd ratio: RGB 31/67/8lm? If all is at full power, is that white light?

 

[blasterman]

I notice that the DJ/club lighting industry is still mostly using 5mm LED's with some 1W and 3W various LED's, but they don't seem to be using any RGB's, just discrete colored LED's and mixing the output.

You mean, the 'low end' DJ industry .

All the 5mm / 10mm RGB mixing PARS I've used are junk, and even the amatuer guys (Chauvet / ADJ) are moving towards 1-3 watt. However, the reason you don't see MC-E based fixtures is simply price.