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Radiance Calculator

xet

xet

Active member
I am building an LED grow light and after hours of searching I discovered a Radiance Calculator on NASA's website that is a tremendous help and I hope it helps more of you in your quest to build outstanding spectral quality.

If you know of other calculators or spectral charts that a user can manipulate on the fly please post them here.

https://astrogeology.usgs.gov/tools/thermal-radiance-calculator/
 
xet

xet

Active member
I found a few more Blackbody Radiance calculators, one of them even an XLS sheet!

https://highered.mheducation.com/ol...body_Nav.swf::Blackbody Radiation Interactive

The most helpful IMO - download this XLS sheet and keep it! http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=427.0

https://phet.colorado.edu/en/simulation/blackbody-spectrum

https://phet.colorado.edu/sims/blackbody-spectrum/blackbody-spectrum_en.html

http://www.spectralcalc.com/blackbody_calculator/blackbody.php

http://www.spectraplot.com/blackbody

:ying:
 
Koondense

Koondense

Well-known member
Veteran
The black body radiation does not apply to discharge lamps nor does it apply to leds. It only works with tungsten lamps so the figures you'll get won't be good for any particular use.
What are you actually trying to achieve with these sims?
Maybe a DLI calculator is what you need.

Cheers
 
xet

xet

Active member
Koondense said:
The black body radiation does not apply to discharge lamps nor does it apply to leds.
Click to expand...

What do you mean?

Koondense said:
It only works with tungsten lamps
Click to expand...

What do you mean?


Koondense said:
so the figures you'll get won't be good for any particular use.
Click to expand...

What do you mean?

Koondense said:
What are you actually trying to achieve with these sims?
Click to expand...

I am building an LED grow light.

Koondense said:
Maybe a DLI calculator is what you need.
Cheers
Click to expand...

Thank you for the tip.

:ying:
 
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