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Originally Posted by Vasudeva  Hi, this is a great post i have learned a lot, but i am just bit confused on kelvins and nanometers. can i have a bulb with 10,000k and still have a spike in 650 nm? |
Yes, that is correct. To have cooler, bluer, colors (higher color temperature) the blue part of the spectrum needs to be relatively higher than that red spike though.
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where do Kelvins and nanometers come together? are kelvens just measuring what color i see? thanks for the great informational post!
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When you heat up an idealized piece of matieral known as a "black body" it will emit different colors depending upon it's temperature:
http://en.wikipedia.org/wiki/Black_b...ody_simulators
The relation between kelvin and the spectral distribution colors (nm) is a bit complicated. You can calculate the kelvin from a spectrum, but not the other way around since many spectrums will generate the same color:
http://www.fourmilab.ch/documents/specrend/
Re: Lighting Spectrum and Photosythesis 
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