Luminus's new emitter with circular die

I would love to see this in an aspheric setup,different than the traditional projected die square.I know the die size is big but a cool idea anyway just to experiment.

thanks bose, makes sense.

Finally, a round led die!

Can wait to get my hands on them

Round emitter dies are nothing new. They have been made by the Chinese in all the worst crap lights you can find. To me the round dies symbolize junk. Make mine square, please. :)

Here is a link with a couple example pics: http://www.candlepowerforums.com/vb/showthread.php?242143-zhong-sheng-zs20rba3-5W-flashlight&p=3085464&viewfull=1#post3085464

nice, but probably won't be a "budget item" for awhile

Take it easy on them. They make the best lights. With so little pay.

Agreed! Except for the LEDs themselves.

I'm sure i've seen these being used for led headlights

I talked to the manufacturer of the flashlight that uses it and they say it is 2000 lumens off of 2 32650 batteries. Now I just have to resist the urge to buy it. :P

Round emitter calls for a square battery.

http://www.batteryspace.com/lifepo432650battery32v18ah576wh100aratebatteryinaluminum-box.aspx

The data says that it puts out a maximum of 100k lux at 1m.

"LEDs are square because saws cut straight lines and you have very little wasted space when cutting them out". Uh....., no not really. Look at this: http://www.lightdirectory.com/news-Ever-Wonder-How-LEDs-Are-Made%3F.htm

"If circle LEDs are the next thing be prepared to pay more for them as specialized equipment will be needed for singulation and the usable area for die drops significantly due to wasted material". Again....., no, not really. Currently used lasers make round shapes just as easy as square shapes. The only thing close to accurate in this statement is the (very) slightly increased wasted space per die. They might be a tiny bit more expensive but not much. As soon as another producer starts making them the price will drop. Heck, the price drops every year for square ones just because the volume of production goes up. Right? This is a common sense thing.

I forsee/predict a prefocused round LED that will eliminate the need for any kind of reflector whatsoever. Smaller, lighter, cheaper.

Knowledge is Power.

A round LED will be nice for zoomies and aspheric throwers.

Umm, I can go over right now and see the Diamond Dicing saws at work right now if I want. Guess what they are basically circular saws, they are not lasers.

Trust me, I know how LEDs are made, I am sure I know a lot more on how LEDs are made than you, I make them myself. If you want I can educate you on the process.

1st, this is not cree. This is luminus they may have a different method.

2nd, yes can you educate us. :)

True. The part about waste is not going to change though. If you draw a grid of circles, 1 circle will touch its 4 nearest neighbors on 4 infinitely small points. In between all the connections will be a small cross of wasted scrap material that can’t be used.

Look at all the bond wires on that sucker.

Also makes manufacture more difficult. Wonder why they haven’t moved over to a FC design.

That is true, but what I would like to know is what is the expensive part of the led. The board or the other ingredients and bond wires etc.

Bose301s (mr. know it all) - try watching the link I posted and learn something. I can post three more from different makers of LEDs that show virtually the same thing. You want them? Saws? Really? Oh, hell no. You must be going to Fred Flintstone's LED Cave to watch something like that. I imagine folks are lining up at your door to buy your homemade LEDs. What does it cost you to do gallium arsenide deposits on the metal substrate? What class of clean room do you use? Do you even know that clean rooms come in different flavors (classes)? You must be very rich to have all this wonderful equiptment? I'm pretty sure you might know something I don't but I'm equally sure I have no interest in learning how to pick my nose in a new way. Only 16 posts and already I have some clown (Nyah nyah, I know more than you do) climbing up my butt and resorting to personal insults. Is that the best you can do, smart guy? Lame at best. I posted the link for all to see but I guess nobody bothered to look at it. Maybe you should have.

As I said before, yes, there is more waste. You were right about that. Sort of a no brainer observation though. Congrats!