Any major advances on the horizon for an XR-E sized die?

[Bronco]

It seems that the vast majority of significant LED advances in the past year have been limited to either multi-die emitters such as the MC-E, P7 and Ostar, or single die emitters with large surface areas such as the SST-50 and SST-90 series. If my understanding is correct, even the highly anticipated XP-G die will have twice the luminous surface area of the XR-E.

So the question on the table (prompted by those of us who love our throw monsters) is what, if any, advances are currently being hinted at for the 1mm x 1mm XR-E sized emitter?

 

[RyanA]

I would be interested to see if the larger die of the XP-G was applied to the form factor of the XR leds. Perhaps even higher currents would be an option. mmmm.... XR-G...

A man can dream I suppose.:tired:

 

[Bronco]

If I understand what you're proposing correctly, then I would imagine that having the XP-G share the same footprint as the XR-E would indeed be welcome, particularly by modders and those looking to upgrade older lights. For the purposes of this thread, however, my interest is focused on any rumors of potential breakthroughs that could lead to the development of new emitters which will sustantially boost the luminous intensity across the same small 1mm x 1mm luminous surface found on the XR-E die.

 

[bshanahan14rulz]

There is a 0.9x0.9mm die.

http://www.cutter.com.au/prodimages/PC-06.pdf
http://www.candlepowerforums.com/vb/showthread.php?t=234821

 

[RyanA]

As far as I know the XR-E's are still the current champs for intensity. Though nicha does have some chips with a very high efficacy, I don't know the die size, and I think maximum current is limited to about half that of the XR-E.

 

[qwertyydude]

I think the next bigger breakthrough won't be sheer output but like the XP-G will be finding solutions to droop.

 

[Bronco]

I think the next bigger breakthrough won't be sheer output but like the XP-G will be finding solutions to droop.

Assuming such advances were able to be applied to an XR-E sized die, and I can't imagine why they wouldn't, then this would likely be every bit as important in practical terms as an increase in luminous intensity.

 

[bshanahan14rulz]

I believe that they have already improved many xr-es. The dice are being cut smaller, but the bins didn't shift down or anything. Imagine how much light an R2 xr-e would put out if they cut it big instead of small. instead of .81mm^2, it would be 1mm^2. guesstimating that's ~10-20% more light?

 

[lolzertank]

Lumileds' GenX is the only thing I can think of, and it's not very promising anymore.

 

[RyanA]

I believe that they have already improved many xr-es. The dice are being cut smaller, but the bins didn't shift down or anything. Imagine how much light an R2 xr-e would put out if they cut it big instead of small. instead of .81mm^2, it would be 1mm^2. guesstimating that's ~10-20% more light?

That's what I'm talkin' about baby!

Heck 2mm^2, Gimme the XR-G!