Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers

LPF Donation via Stripe | LPF Donation - Other Methods

Links below open in new window

ArcticMyst Security by Avery

Laser visible light comparisson tool

L

LaserNinja

0
Joined
Jan 8, 2013
Messages
54
Points
8
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 :)
 
Last edited:





brendon7358

brendon7358

0
Joined
Jul 2, 2011
Messages
1,011
Points
63
The tool you are talking about is in my sig (Relative Perceived Laser Brightness Calculator), unfortunately however it was taken offline :yabbem:
 
Last edited:
Robpar

Robpar

0
Joined
Apr 30, 2014
Messages
36
Points
0
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.
 
L

LaserNinja

0
Joined
Jan 8, 2013
Messages
54
Points
8
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*
 
Rifter

Rifter

0
Joined
May 8, 2014
Messages
572
Points
0
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.
 
rhd

rhd

0
Joined
Dec 7, 2010
Messages
8,475
Points
0
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.
 
BowtieGuy

BowtieGuy

0
LPF Site Supporter
Joined
Oct 14, 2012
Messages
6,090
Points
113
Thanks rhd, I've missed having the calculater available, nice to have it back. :beer:
 
Atomicrox

Atomicrox

0
Joined
Jun 22, 2011
Messages
2,431
Points
83
Thank you very much for putting the tools back online and for the update to always use the newer data!
 
You must log in or register to reply here.




Top