Wavien Recycling Light Technology is expensive!

Flashlight Modding and DIY Parts
21

I’m not sure about the “further exciting the phosphor” bit as internally reflected light inside the LED only heats the phosphor and reduces its efficiency (there was a lot of discussion about this on that long de-doming thread), but I can certainly see how collecting the side scatter in an aspheric would increase output. From what little I know about aspheric lights a lot of effort seems to go into absorbing that side scatter, so that it doesn’t mess up the beam profile/ focus. If you can instead collect it and present it to the aspheric so that it “appears” the same as light emitting directly from the LED, then you should get more light with the same beam profile/ focus.

it would require a fair bit of tinkering to find the right combination of reflector height, opening, angle and aspheric, but it shouldn’t be beyond the abilities of the peeps on here…

22

It does increase the surface brightness, and the secondary phosphor excitation results in the decrease in color temp.

23

decrease in color temp is visible in beamshots

i’d say if he got ANY results with that little aluminum collar, then it is an interesting and potentially productive avenue for DIYers

and I don’t expect (all) chinese will honor wavien’s patent.

24

hey, I know about as much about optics and physics as the man on the street, lying in the gutter after a hard night out :slight_smile: I have no idea if phosphor re-excitation is possible, but given the amount of blue light in the white light emitted by an LED (and presuming that the phosphor is most efficiently excited by blue light), it could happen. If it’s that easy though, why haven’t any of the LED or optic manufacturers used it?

25

I don’t know either, i was just repeating what I read in that thread

I suppose if it isn’t phophor excitation, it might give photons a chance to to make it out in the right direction

honestly, I’m kind of a science guy, but I don’t really care much about the specifics, aside from how they might help me build an awesome aspheric thrower :slight_smile:

I guess they haven’t pursued it, because it isn’t profitable, or at least profitable enough for them to care. Wavien isn’t exactly a household name yet, but cree is :slight_smile: