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Thread: Anyone make a hood for your headlight?

  1. #1
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    Default Anyone make a hood for your headlight?

    The discussion over on missed connections got me thinking again about making a hood for my headlight. A "cap" on the top of the light wouldn't limit its illumination of the trail but would ease eye strain for fellow path users a great deal. Exactly the same way many of us put our hand over the top the light. I have a little strip of duct tape on the top of one of my lights, that is as far as I have taken the idea.

    Something a little less than a full blackout style military light, but that's what gave me the idea.



    Here's another one but its a huge image
    http://upload.wikimedia.org/wikipedi...ving_Light.jpg

    Or maybe the bicycle light manufacturers could just recognize the need to make their products a little more thoughtful? Like headlights with a clear cut off on top of the beam.

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    Quote Originally Posted by anomad View Post

    Or maybe the bicycle light manufacturers could just recognize the need to make their products a little more thoughtful? Like headlights with a clear cut off on top of the beam.
    German manufacturers already make such lights (mainly for dynamo systems) as required under German law.

    See: http://www.peterwhitecycles.com/lightingsystems.htm

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    I used a light from him for an endurance event in Utah. It had a good cutoff but no hood.

    I see they offer "glare protectors" now. That is pretty much what I want to make. Maybe something a little bigger than you could swivel up and down as needed?

    Click image for larger version. 

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    Quote Originally Posted by bentbike33 View Post
    German manufacturers already make such lights (mainly for dynamo systems) as required under German law.

    See: http://www.peterwhitecycles.com/lightingsystems.htm

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    Yes a couple of them. I use Nightriders and they project forward well with little light leaking back so to speak. Made some early attempts at saving money by buying cheap lights. Made upon any potential savings by repeatedly getting junk that did not work well and trying to make them better. I made molded black plastic cones that directed the light mostly forward.

    For my Nightriders I made and used a flip down dark tint flap for a while. I would flip it down when others were oncoming. I had a fair amount of full power light almost straight down to see the ground and a dimmed down foward beam that did not fry oncoming riders. That setup disconnected itself from my bike one day without notice. Using my unmodified backup of the same model light I found that flipping the light sideways to the train side did almost the same.

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    Oh I am so gonna do this. My headlight does have a wide throw*, and I've come across one or two cross traffic whiners at night. All you'd really need is an opaque sliver of plastic and a springy length of stainless wire to make a pinching clip I'd think.

    *I have access to a light meter here at work and decided to test my light, and the outer throw ring at 12 feet from source comes up around 1-2 footcandles (18 lux), and the center throw which is about 3 feet wide at 20 ft out is only 18 footcandles which really makes me lol at the whiners even harder.

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    Quote Originally Posted by Vicegrip View Post
    Yes a couple of them. I use Nightriders and they project forward well with little light leaking back so to speak. Made some early attempts at saving money by buying cheap lights. Made upon any potential savings by repeatedly getting junk that did not work well and trying to make them better. I made molded black plastic cones that directed the light mostly forward.

    For my Nightriders I made and used a flip down dark tint flap for a while. I would flip it down when others were oncoming. I had a fair amount of full power light almost straight down to see the ground and a dimmed down foward beam that did not fry oncoming riders. That setup disconnected itself from my bike one day without notice. Using my unmodified backup of the same model light I found that flipping the light sideways to the train side did almost the same.
    Totally with you on "cheap" lights. However, Nightrider pissed me off back in the halogen days and I'm still holding a grudge... I should probably let that go by now.

    Got an empty pop can and some tape here looking at me.

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    Here's where I am going with this idea. Thanks for the inspiration!


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    Quote Originally Posted by anomad View Post
    Here's where I am going with this idea. Thanks for the inspiration!

    Be careful not to interfere with the heat-sink properties of the light's case or you may fry the LEDs.

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    Cool!
    I made a prototype out of a piece of bent coathanger and a bit of thicker plastic. Tried a soda bottle first but the plastic is too flimsy. Colored it with a sharpie. I wonder what the final shape of the hood will need to be.
    Click image for larger version. 

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  14. #10
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    Thanks. These things aren't cheap. Do you think the aluminum will act like a cooling fin if I don't get too carried away with the tape? LSG's bent coat hanger idea or safety wire would dissipate heat since it would be all metal.

    On the Amoeba you can see it has cooling fins under the driver. I think that is where most of the heat is generated. I might email the maker of that light and get his 2 cents.

    Quote Originally Posted by bentbike33 View Post
    Be careful not to interfere with the heat-sink properties of the light's case or you may fry the LEDs.

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