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General Astronomy >> Light Pollution

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George N
Carpal Tunnel
*****

Reged: 05/19/06

Loc: Binghamton & Indian Lake NY
Re: not like it used to be new [Re: csrlice12]
      #5920555 - 06/14/13 12:53 PM

I don't think it's surprising that getting good anti-LP laws is only the first step for "anti-LP activists". The next step, just as important, is to insure that they are enforced. In some cases it's a matter of highway and other public departments not knowing how to comply.

I see on the RPI (my alma mater) Lighting Center website that they offer a lighting design and consulting service tailored to help local and state governments comply with existing anti-LP law. This seems to be mostly aimed at those New England states and localities that have added such laws in recent years.

BTW the RPI center also is pushing their design for "smart street-lighting" wherein traffic and weather sensors and computer software tailor each LED street-light to the brightness needed for current conditions (as determined by their engineering studies). Basically, no traffic - the system turns the lights off, etc.


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csrlice12
Postmaster
*****

Reged: 05/22/12

Loc: Denver, CO
Re: not like it used to be new [Re: George N]
      #5920653 - 06/14/13 02:01 PM

Of the three street lights surrounding my property, I like the one that burnt out the best.....

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schinia
member


Reged: 05/17/13

Loc: cape carteret,NC
Re: not like it used to be new [Re: csrlice12]
      #5922005 - 06/15/13 10:45 AM

now that gives me an idea!

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richard7Moderator
Not Quite
*****

Reged: 11/02/07

Loc: Sacramento
Re: not like it used to be new [Re: schinia]
      #5922144 - 06/15/13 11:57 AM

Quote:

now that gives me an idea!




Oh please. Let's not head in that direction.


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schinia
member


Reged: 05/17/13

Loc: cape carteret,NC
Re: not like it used to be new [Re: richard7]
      #5922201 - 06/15/13 12:30 PM

contrary to opinion, and sayings, the meek will never inherit the earth,and if you give a person enough rope he will hang himself. NOOO, he will hang YOU !

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Starlon
sage


Reged: 04/18/06

Loc: desert, USA
Re: not like it used to be new [Re: schinia]
      #5922451 - 06/15/13 03:27 PM

http://www.gizmag.com/led-streetlamp/27246/

Quote:

For astronomers, a well-lit city means a sky unavailable for study.

The proposed street lamp loses only two percent of its light as direct pollution and reduces energy consumption by 40 to 60 percent. LED street lamp design based on a three-part lighting fixture, with the first part containing a cluster of high-efficiency LEDs. These use Total Internal Reflection (TIR) lenses, which focuses the light into parallel rays. The LEDs are mounted inside a reflecting cavity that helps keep the light from scattering and, as it leaves the unit, light is passed through a diffuser to reduce glare. According to the team, this design allows the lamp to project a uniform rectangle of light over a given area.




Another good article: http://www.osa.org/en-us/about_osa/newsroom/newsreleases/2013/new_led_streetl...

The.. leading nations around the planet are continually advancing their nations technology. Although we in the USA could have been at the cutting edge of so very many things - our.. nation's handlers deem to continue using their old infrastructure and old technologies.

We could be building a maglev transport system too. But..


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