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



How much brighter is a 3w 450nm laser then a 1w 450nm ?

Charlie3082

New member
Joined
Dec 6, 2019
Messages
6
Points
3
i am thinking of getting a 3w laser just wondering how much brighter will it be then a 1w
 



Cyparagon

Well-known member
Joined
Sep 12, 2007
Messages
9,671
Points
113
Steve is wrong. Well, he's right in the sense that there is of course three times the luminosity by definition, but Paul is a lot closer. It is not at all linear. In fact, we perceive almost nothing linearly:


(3w/1w)^.5 is 73% brighter.

Brightness, luminosity, intensity, power, energy, power density, luminous efficacy, luminous efficiency, luminous flux, all mean something technically different believe it or not. Be careful what word you're using.
 




Top