Seeing your bike computer screen at night

It's not always easy. If your bike computer screen has a back light,
well you can likely read it, but to the detriment of your computer
battery. If you wear a helmet mounted light, you could look down and
illuminate the screen I guess.

For my dynamo powered front light, I'm thinking of adding something like
this...

http://i-fiberoptics.com/engineering...ts&summary=104

--
JS

On Fri, 28 Jun 2013 09:54:42 +1000, James
wrote:

It's not always easy. If your bike computer screen has a back light,
well you can likely read it, but to the detriment of your computer
battery. If you wear a helmet mounted light, you could look down and
illuminate the screen I guess.

For my dynamo powered front light, I'm thinking of adding something like
this...

http://i-fiberoptics.com/engineering...ts&summary=104

I dunno. Looks complicated.

You can solve the dead battery problem by drilling two holes in your
bicycle computah, wiring leads to the internal battery, and adding a
big fat external battery somewhere.

However, if you want a gooseneck style lamp, I have a different idea.
Instead of using a light pipe, just put a tiny LED at the end of a
piece of flexible coaxial cable. I use RG-402 semi-rigid 0.141"
diameter coaxial cable. Anyone that does microwave or avionics work
has some of these:
http://www.ebay.com/bhp/semi-rigid-coax
The cables usually come with male SMA connectors on the ends. Get two
SMA receptacles. Add the light on one end, and the power source on
the other. The 0.141 coax is quite stiff and will stay in place once
bent to shape. It's also not so stiff as to create an impalement
hazard should you fall on top of it.

--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558