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  1. #1
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    I always love "world first" claims

    Fenix's homepages

    me thinks they forgot to look at this forum about 2 years ago, or was it more? Heck, maybe they did and it has taken this long to get a "commercial" version

  2. #2
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    world first

    I'm the world first to declare:

    I'm interested in this optic-reflector combination for my DIY-lights!

    I always love "world first" claims-dana3egy.jpg

    Fenix can you here me??

  3. #3
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    Truly, remarkable technology!

  4. #4
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    Quote Originally Posted by mrradlos View Post
    I'm the world first to declare:

    I'm interested in this optic-reflector combination for my DIY-lights!



    Fenix can you here me??
    It looks like a flat lense, with some hot-knife scoring on the edge ... Hmmm

  5. #5
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    Me thinks they covered that when they said "professional" as opposed to DIY as in the name of the forum. Getting two years up on the professionals is still cool. To see professional you have to scroll down a bit and read the fine print.

  6. #6
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    I don't remember a single lens dual beam DIY light. Got links?

  7. #7
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    Anyone have a monitor circuit like this ?

  8. #8
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    maybe I should have looked more closely, dual beam from a single emitter. I was thinking dual beam but with dual emitters which I have seen several of here, and I'm not just thinking different optics on different LED's but more the likes of Trouties bar light that had the LED's angled differently and then the other road light that had a high and low beam, the low beam was LED's facing up and then being directed by reflectors cut in half on their side, or maybe that one was a mirror and the high beam was above the low beam source.

  9. #9
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    Quote Originally Posted by shirk View Post
    I don't remember a single lens dual beam DIY light. Got links?
    Quote Originally Posted by ragnar.jensen View Post
    "Employing the pioneering dual distance beam system, the upward beam of BT20 is refracted by the lens, forming an auxiliary beam in the front area of the wheels where ordinary bicycle light can not reach."

    Hey! They stole my idea!

    Behold the 2009 Dual Distance Beam Magicshine:


    Joking aside, the BT20 seems very interesting.

    Quote Originally Posted by ragnar.jensen View Post
    I'm using this light on my road bike. I was a bit concerned that it would blind other cyclists when I'm on the bike path and I wanted to put the light that just goes up in the treetops to some use on the road.

    So, there are two purposes of the lens I've added:
    1. Bring the halo down and out of the eyes of people I'm meeting.
    2. Elongate the spot, so I can point the light fairly far forward of me but still have usable light close to the front wheel.


    The lens is made out of a flat magnifier lens.

    The magnifier bends light more the farther from the center of it you get. I used the part marked in red. It's made of vinyl, so I just cut out the shape I wanted with a pair of scissors.

    The lens is squeezed between the reflector and the standard, flat lens.


    Beamshot, unmodified light:

    A bright center spot surrounded by a big, round halo.

    Beamshot, dual beam lens:

    The upper part of the halo has been brought down and concentrated inwards. The center spot is stretched out downwards
    The light is very close to the wall in this shot, the effect of the spot elongation is much more pronounced out on the road.
    I'll make some "on the road" beamshots if anyone is interested.



    It is a Marwi mount with a MS 900 adapter and a Marwi Mount Kit, that I bought here: LED Bike light parts



    --
    Ragnar
    Been Done, it seems

  10. #10
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    I knackered a Cute quad optic about four years ago trying that and it sort of worked.(kept quiet about it though) No doubt I'll have another try with some DNA optics.
    Attached Thumbnails Attached Thumbnails I always love "world first" claims-knackered-cute.jpg  


  11. #11
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    Quote Originally Posted by bikeabuser View Post
    Anyone have a monitor circuit like this ?
    Well, all the magic shines and clones have similar led fuel gauges. There are external fuel gauges that can be incorporated into DIY designs, and TaskLed drivers have status led functions that act similarly.

    Sent from my cm_tenderloin using Tapatalk 2

  12. #12
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    Looks like there is more to it than just the front cover. The relector of the Fenix looks like it's rough in the centre and smooth ouside of the centre.

    More here: fenix bt20 bike light review and pictures
    Last edited by yetibetty; 11-23-2012 at 09:00 PM.

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