best led/optics for micro thrower

[B30wuLF]

i want to build a light for my bow LINK
i first thought P7+aspheric lens but then i have the big X problem because of the 4 emitters.

what is the brightest SINGLE chip led?
how do i get the tightest spot with next to no spill from a max. 40mm head?
could i make this from a cheap DX light?

 

[B30wuLF]

come on gys. i need some input here.

 

[J.D.]

I think brightest single die emitter is the Osram Diamond Dragon, but i haven't found a good source yet :shrug:

 

[ahorton]

You mention throw in the title and there's more to throw than having the brightest led.

For throw, a lot of folks (including myself) like the combination of a single XR-E behind an aspheric lens. If that's not bright enough, try a couple of them, each with their own lens. Packhorse did this well with cheap DX lenses.

 

[DM51]

come on gys. i need some input here.

You'd receive better input if you took the trouble to post it in the correct forum. Your question has nothing whatever to do with batteries, so why post it in the Batteries section? I'm moving it to Homemade & Modified.