Wavien collars are SOLD OUT [limited production]

I’m not taking offense but the full context does help. Moving on.

Playing with my GT and MF-04 last night,I disliked those huge circles of light around the central beam,so I would like to do something to eliminate them,one way or the other,and the collar could be one of them.So,I wait and see hoping that this could be possible. :question:

I think you might have linked the wrong one ;).

Here are the actual patents for the collar: US8979308B2 ,

They actually started by incorporating a collar into a light pipe. Then later they had the idea to also use just the collar with lenses.

Aspheric flashlights have no spill, but you need to use an aspheric lens, you can’t use the collar with a reflector :frowning:

Well HoLi Moses, Kenneth sure has been one busy guy. :laughing: :student:

Do you think that it is possible to put a aspheric lens to the GT or the MF-O4/?I prefer the second one,because I could convert the GT to a many lumens 70.2 light. :slight_smile:

I have ordered this fresnel lens: Page Not Found - Aliexpress.com It sould fit.
A possible lens is http://www.optolife.com/singlet_lens/A037.html
Here you can see pictures of this lens in the GT: Wavien Kragen (collars) in Zukunft wieder erhältlich? | Taschenlampen Forum

I don’t think 70.2 will work great with Wavien collar :

Also , keep in mind that light recycling works better with dedomed leds , at least they mention surface matters , like dedomed xp-g2 etc .

I mean that I want to convert one light with the 70.2 and the other with a collar. :slight_smile:

I think the GT is better for collar AND aspheric lens, because the head consists of two parts. You can screw the reflector-housing off from the LED-Base. With this you can set a better focus to the aspheric lens / fresnel lens.
But the GT is better for XHP70.2 because you can use it with more batteries and the cooling-fins are much better.

I think you (and me) need a second GT! (because I have similar ideas).

Keep in mind, for the XHP70.2 with an other driver (e.g. 12V and 8-9 Amps), that the MF04 has 2S2P Battery and the GT (2x)1P4S.

I see. :slight_smile:

are there any MF02/TN42 aspheric mods out there?

Ordered 2, going to try it in a Jaxman Z1vn that has a SBT-70 and does 2200 lm and 130klux
If I could 1.5-2x the lux I would be really happy.

I have the Jaxman Z1, just curious that the focal length (around 27mm) is greater than the collars (12.5mm), will this affect the size of projected die or will there be light spill?

The focal length of a lens has nothing to do with the focal length of the collar.
The NA of the lens is what matters since the collar has a 60 degree opening only.

I was going back and forth between those and couldn’t decide.

Thanks!

Ok, but wouldn’t the Z1 lens still be something like 27mm from the led to focus the die and in turn have a gap between lens and collar top where light from collar would widen as it exits the aperture of collar?

Yes it would, that’s why I said that the numerical aperture is what matters.

not sure but this looks like waiven copy, found on aliexpress

Looks like a parabolic reflector to me.