If you’re in the market to buy a laser pointer you’re probably well aware of the various different output powers (mW) and color frequencies (NM) available to you. But what really is the difference between laser pointers of varying color?
Here we look at understanding this difference.
1. Light Wavelength (NM)
To put it simply, no matter if visible or invisible, light is a wave. Within the visible light spectrum the length of light waves is measured in Nanometers (NM) and directly determines what colors we visually see. For this reason every laser pointer will list within its technical specifications what color (wavelength) it outputs.
When considering laser colors the most common question is “what is the brightest color?” Green at 532nm is always the brightest laser color as green is the brightest color to the human eye and is also the reason plant life is green, it absorbs the most amount of light energy. This, however, does not cover the brightness based on output power, but strictly brightness based on color frequency.
3. Brightness In Relation to Color and Output Power
We now know that 532nm green light is the brightest laser color, in fact green is actually up to 7x brighter than any other laser color at the same output power. So, for example, let’s say we have a 100mW green laser and a 100mW red laser, the 100mW green laser will be 7x – 10x brighter than the red laser based on the light wavelength at the same power.
No matter what sort of laser you are looking for or what color you prefer, it is important to always do some research into the variations available in today’s wide range of laser pointers. Consider you’re desired application for the laser as this will help you determine how bright you will need any particular unit. Be sure to look for warranties and support should you need it and always Buy A Laser Pointer from a reputable and trusted source. Support@BigLasers.com 1-877-614-5304