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Main
Date: 31 Oct 2007 08:43:52
From:
Subject: New Helmet Mount Lamp Design
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For an inexpensive helmet lamp, buy an 12 volt, 25 watt RV light bulb at
Home Depot (about $3.50). Attach a standard light bulb socket and a lamp
shade to your helmet using pieces of wire hangers. various bits and
pieces of steel, and cable ties. Power it with a 12 volt sealed lead
acid battery that you carry in a back pack.
The beam pattern is not ideal, as it doesn't illuminate the road at all,
but it is a good "being seen" light. It cannot be powered by a dynamo.
Not sure if it's legal or not, but admit it, have you ever not seen an
illegally lit cyclist? Or have you ever seen a legally lit cyclist? Or
have you ever not seen a legally lit cyclist? Whatever. I know it's a
good light because I rode around my neighborhood and I asked my
neighbors if they could see me and they all told me that they could,
then they hurried their kids and pets indoors.
I put up some images of this at "http://bicyclelighting.com" . I tried
it last night while going to a Halloween party and it worked well.
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Date: 03 Nov 2007 10:59:09
From: Tom Sherman
Subject: Re: New Helmet Mount Lamp Design
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SMS aka Steven M. Scharf wrote:
> For an inexpensive helmet lamp, buy an 12 volt, 25 watt RV light bulb at
> Home Depot (about $3.50). Attach a standard light bulb socket and a lamp
> shade to your helmet using pieces of wire hangers. various bits and
> pieces of steel, and cable ties. Power it with a 12 volt sealed lead
> acid battery that you carry in a back pack.
>
> The beam pattern is not ideal, as it doesn't illuminate the road at all,
> but it is a good "being seen" light. It cannot be powered by a dynamo.
> Not sure if it's legal or not, but admit it, have you ever not seen an
> illegally lit cyclist? Or have you ever seen a legally lit cyclist? Or
> have you ever not seen a legally lit cyclist? Whatever. I know it's a
> good light because I rode around my neighborhood and I asked my
> neighbors if they could see me and they all told me that they could,
> then they hurried their kids and pets indoors....
To paraphrase Leo Rosten, anything that scares children and dogs can't
be all bad.
--
Tom Sherman - Holstein-Friesland Bovinia
When did ignorance of biology become a "family value"?
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Date: 31 Oct 2007 22:02:17
From: Mike Kruger
Subject: Re: New Helmet Mount Lamp Design
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"SMS ???. ?" <scharf.steven@geemail.com > wrote in message
news:4728a250$0$79927$742ec2ed@news.sonic.net...
> For an inexpensive helmet lamp, buy an 12 volt, 25 watt RV light bulb at
> Home Depot (about $3.50). Attach a standard light bulb socket and a lamp
> shade to your helmet using pieces of wire hangers. various bits and pieces
> of steel, and cable ties. Power it with a 12 volt sealed lead acid battery
> that you carry in a back pack.
>
> The beam pattern is not ideal, as it doesn't illuminate the road at all,
> but it is a good "being seen" light. It cannot be powered by a dynamo. Not
> sure if it's legal or not, but admit it, have you ever not seen an
> illegally lit cyclist? Or have you ever seen a legally lit cyclist? Or
> have you ever not seen a legally lit cyclist? Whatever. I know it's a good
> light because I rode around my neighborhood and I asked my neighbors if
> they could see me and they all told me that they could, then they hurried
> their kids and pets indoors.
>
> I put up some images of this at "http://bicyclelighting.com" . I tried it
> last night while going to a Halloween party and it worked well.
At least it's not something oddball like a generator light.
Nice Halloween joke. Thanks.
--
Mike Kruger
Here's a tip: Try to eat everything. You'll be surprised how much is
edible --Darby Conley
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Date: 01 Nov 2007 12:50:21
From:
Subject: Re: New Helmet Mount Lamp Design
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Mike Kruger wrote:
<snip >
> At least it's not something oddball like a generator light.
>
> Nice Halloween joke. Thanks.
Hey, I wore it walking around the neighborhood with our group of trick
or treaters, and it came in very handy. Easier than carrying a
flashlight, though vertical clearance was an issue in some areas.
I'd like to get a 12 volt compact fluorescent for next year as the 25
watt bulb only gets about 90 minutes of operating time from the battery.
I could use a smaller battery or go longer. I saw some at
"http://www.solarseasy.com/cfbulbs.html".
Direct links to photos of the helmet lamp are:
"http://nordicgroup.us/s78/images/helmetlightfrontview.jpg"
"http://nordicgroup.us/s78/images/helmetlighttopview.jpg"
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