Re: [APML]: Active Light Pollution Reduction

[Brad Barton <bbarton@holli.com>]

Kal Krishnan wrote:
> 
> 
> Where is the sensor physically located on a typical modern streetlight?
> - Kal Krishnan


The sensor is the small cylindrical object on the top of the light.  You 
may have to look at it during the day light hours to see it as it is 
often shielded by the glare of the light at night.  The actual 
sensor's eye is usually located on the north side of the sensor (in the 
northern hemisphere), so you need access to the north side of the light 
to have any effect.

I always assumed that painting the eye with a laser would keep the light 
off continuously.  Is this not the case?  I've been considering this but 
would hate to purchase a laser only to find it ineffective.  Where is a 
good source for a cheap laser in the 10 mW range.  Are laser pointers 
powerful enough?

Of course it would be tragic if a few on/off cycles effectively 
eliminated the problem.  Good neighbor policy being observed by both 
parties and all.......

Brad