Re: [APML] street light spectra

["Jose I. Alarcon" <JIALARCON@telefonica.net>]

Hi Rich, thank you for the link

I am looking  for detailed spectral power distribution curves (continuous
spectral plots) rather than
spectrum images.
For example, in mercury vapor lights the 546 nm line is 4 times stronger
than the 436 nm

Regards

Jose

----- Original Message ----- 
From: "Richard Klappal" <klappal@xnet.com>
To: "Discussion of Film Astrophotography" <astro-photo@seds.org>
Sent: Tuesday, October 28, 2003 4:32 AM
Subject: RE: [APML] street light spectra


> There's a photo/chart of the various spectra at
> http://jchemed.chem.wisc.edu/Journal/Issues/1997/Sep/abs1070.html,
>
> What variety of 'detailed' are you looking for?  Peaks? Continuous
> quantitative spectral plots? ...
>
> Rich
>
>
> -----Original Message-----
> From: astro-photo-bounces@seds.org
> [mailto:astro-photo-bounces@seds.org]On Behalf Of Lane, Jason R
> Sent: Monday, 27 October 2003 09:52
> To: astro-photo@seds.org
> Subject: RE: [APML] street light spectra
>
>
> Hi Jose,
>
> I have a reference (Handbook of Optics) showing spectral energy
distribution
> for different types of lamps.  For example, for a clear mercury-arc lamp,
> the plot looks like it has peaks near 360 nm, 400 nm (violet), 440nm
> (blue-violet), 550 (green), and 575 (yellow).  I also have a figure
showing
> spectral lines for spectral lamps which include sodium and mercury.  I am
> not sure if street lights count as "spectral lamps", but it may get you
> started.  Sodium is sodium if you ask me.  If you are interested, send me
an
> email and I can scan off the pages and send them to you.
>
> -Jason Lane
>
>
>
>
> Thank you Don, but it is not as easy as you might think to find the =
> data.
> Before sending my post I=B4ve spent some time surfing in "darksky" webs =
> and lamp manufacturers sites
> with no result. I=B4ve only found some general comments on which parts =
> of the
> spectrum are more affected with the different type of lamps, but  I am =
> looking for a much
> more detailed information.
>
> Jose
>
>   ----- Original Message -----=20
>   From: Don Spencer=20
>   To: Discussion of Film Astrophotography=20
>   Sent: Friday, October 24, 2003 11:37 PM
>   Subject: Re: [APML] street light spectra
>
>
>   Hi Jose,
>               You might find what you are looking for here...
>   http://www.darksky.org/links/lightedu.html
>
>   Don Spencer
>     ----- Original Message -----=20
>     From: Jose I. Alarcon=20
>     To: astro-photo@seds.org=20
>     Sent: Friday, October 24, 2003 2:01 PM
>     Subject: [APML] street light spectra
>
>
>     I am looking for detailed spectra of commercial lamps employed=20
>     in street lights: mercury vapor and sodium vapor (low & high =
> pressure).
>     Does anybody know any internet sources regarding this subject ?
>
>     Jose I.Alarcon
>
> _______________________________________________
> Astro-Photo mailing list
> Astro-Photo@seds.org
> http://seds.org/mailman/listinfo/astro-photo
>
>
>
> _______________________________________________
> Astro-Photo mailing list
> Astro-Photo@seds.org
> http://seds.org/mailman/listinfo/astro-photo

_______________________________________________
Astro-Photo mailing list
Astro-Photo@seds.org
http://seds.org/mailman/listinfo/astro-photo