SPECTRA OF DIRECT SUNLIGHT


This web page will be for nothing but spectra of various artificial and natural light sources other than LEDs and lasers - they have their own web pages here.
Ocean Optics USB2000 Spectrometer donated by P.L.
As of 10-10-07, I've been using a PC2000-ISA Spectrometer from Ocean Optics that I received several years ago, but that I didn't have a home for until now.
As of 03-08-08, I once again have the USB2000 spectrometer, enabling color spectra again.
As of 09-19-09, I no longer have the PC2000-ISA; it was sold to prevent an eviction.

I have been asked on a number of occasions to furnish a spectrum of sunlight; where I'm at that is simply not possible.
Not unfiltered sunlight at noon near summer solstice anyway.






SPECTRA OF SUNLIGHT:


Spectrographic analysis of sunlight, 08-02-08 8:32am PDT in Sacramento CA. USA.
Taken without window glass, but through insect screen (not removeable).

As far as I'm able to determine, a CFL bub was on,
which queered the July 30 and 31 spectra.
This time, I was ***CERTAIN*** to have all light sources
deactivated to avoid contaminating the spectrum.


Spectrographic analysis
Spectrographic analysis of sunlight, 08-01-08 8:36am PDT in Sacramento CA. USA.
Taken without window glass, but through insect screen (not removeable).
Spectrometer's response narrowed to a range of 175nm to 384nm to show ultraviolet spectral features.


Spectrographic analysis
Spectrographic analysis of sunlight, 07-31-08 8:49am PDT in Sacramento CA. USA.
Taken without window glass, but through insect screen (not removeable).


Spectrographic analysis
Spectrographic analysis of sunlight, 07-30-08 8:29am PDT in Sacramento CA. USA.
Taken through window glass.


Spectrographic analysis
Spectrographic analysis of sunlight, 05-17-07 5:24pm PDT in Sacramento CA. USA.
Taken through window glass.











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