AnAppleSnail
Flashlight Enthusiast
Omnidirectional heat pipes are good for recoil LEDs in particular. Rather than mess with reflectors allowing some light to escape un-touched, recoil LEDs sit on a thin metal strip facing into the reflector. This can give shockingly good throw, as with the DealExtreme Ultrafire 'recoil' LED light.That said; I'll bet we see flashlights with heat-pipes before fans because heat-pipes work better for IPX7 (waterproof) testing too. :naughty:
Take Care, William
16000 lux from a Cree XR-C P4 in a 40mm bezel. The reflector cup in the host "appears" to be about 35mm diameter and 25mm depth to driver, though.
A faceted reflector could give a useful but directed wide beam around a fierce central beam. But this idea may be tied up in patents