We know laser pointers are generally and widely employed for operating PPT in teaching, meeting, making presentations, etc. However, with a wide variety of laser pointer colors available online today, you may get lost in what color to choose. Then what color of laser pointers on earth suit your needs best? The answer will depend primarily on what you will need a laser for as well as what output power you’re looking for.
1. What color is the brightest?
Among them, green laser pointers are supposed to be more powerful and brighter than both blue lasers and red lasers. Green at 532nm is always the brightest color of laser light at the same output power. That means that a 100mW of green will be seven times brighter than a 100mW of any other color, so keep that in mind for brightness.
2. What is the best for Astronomy?
When we say astronomy laser pointer, it is most often associated with the laser pointer used in star-gazing and star-pointing. If one is in astronomy club buddies or conducting an astronomy lecture outdoors, such gadgets are ideal for identifying a star or constellation in the sky.
For this use, green laser pointers would be the preferred one. For one reason, green is the most visible laser pointer color for the human eye is most sensitive to green light. Therefore, it is more visible to the distant places. The other reason could be the effect of light in the earth’s atmosphere. Green is a medium wavelength so it scatters more and is more visible than longer wavelengths such as red. At the same output power, a green portable laser will appear much brighter than either a yellow, blue or red laser.
3. What is the best for burning?
The way to judge whether it is up to the capability to burning things such as matches, firecrackers, balloons, and cigarettes is simple. We only need to know its output power. The color of the laser beam matter little as it is the output power that determines burning ability. A laser pointer requires a minimum of 100mW output power to burning things. And the higher the power is the more easily and faster the laser pointer burns things.