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FrozenGate by Avery

Laser visible light comparisson tool

L

LaserNinja

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Joined
Jan 8, 2013
Messages
54
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Hey,
So I remember this online tool, or calculator which let you type your wavelength and mW(attage) to compare the visible density (brightness/perception to the human eye)
I've been searching google and the forums for over 20 minutes now and I can't find it, does anyone remember this tool ?
If so i link would be greatly appreciated.

The reason I want it; I want to calculate what is the most cost effective laser strictly for skypointing, I was thinking a 300mW PL LaserBTB 532nm $230
Or a 445nm laser from a builder on the forum at 1.5W $180

Maybe I failed to mention you compare the 2 wavelengths and powers side by side.
Thanks

EDIT:
GOT THE LINK HERE IT IS :)
 
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The tool you are talking about is in my sig (Relative Perceived Laser Brightness Calculator), unfortunately however it was taken offline :yabbem:
 
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The 300mw 532nm would probably be the same brightness if not brighter than a 1.5w 445nm, the 300mw 532nm would probably be the way to go and considering laserbtb lasers are overspec.
 
brendon7358 said:
The tool you are talking about is in my sig (Relative Perceived Laser Brightness Calculator), unfortunately however it was taken offline :yabbem:
Click to expand...

Yes! That's the calculator, that sucks that it was taken offline.
Thanks for the help.
I remember there was a website that had the source material used to create the calculator, unfortunately the only way I remember to access it 'was' through a link on that website... *sigh*
 
LaserNinja said:
Yes! That's the calculator, that sucks that it was taken offline.
Thanks for the help.
I remember there was a website that had the source material used to create the calculator, unfortunately the only way I remember to access it 'was' through a link on that website... *sigh*
Click to expand...

I think all you need to do that calculation is the factor of human eye sensitivity per wavelength you are comparing which is provided in the link I provided above.
 
I just noticed that the WaveToRGB tool is just a few clicks away from it's quarter-millionth wavelength.

That's kind of amazing to me.
 
Thanks rhd, I've missed having the calculater available, nice to have it back. :beer:
 
Thank you very much for putting the tools back online and for the update to always use the newer data!
 
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