When should you choose a red laser pointer? The red laser pointer, like other colors of laser pointers, are designed to be visible to the human eye. Red is one of the most popular colors of laser pointers – people use them in casual settings, such as using them for pet entertainment and training – but they also have more serious uses. Red was the color of the first laser “created” more than 50 years ago. Its long history is one of the reasons it is popular and also less expensive than other laser colors. To further understand why red is so popular, it might be helpful to determine which color is right for your needs by understanding a bit more about the color red.
Most humans can see a rainbow of colors: Red Orange Yellow Green Blue Indigo Violet. These colors fall onto a spectrum that is visible to the human eye. (You might have learned about ROY G BIV in elementary school.) Lasers are made with diodes that, when partnered with an energy source (like a battery), convert that energy into light. Laser pointers do not need much energy to function. In fact, the low power helps the laser to be invisible until it strikes an opaque surface, like a wall or white board.
Understanding Red Laser Pointer Wavelengths
A red laser pointer and other laser pointer colors emit energy that is measured in nanometers (nm), or one billionth of a meter. The human eye picks up color in wavelengths between 400 and 700 nm. Red light laser pointers track at 635 nm, 650 nm and 671 nm, with a red laser pointer of 635 nm being the most popular. Why? Though all the ranges are considered common, 635 nm is slightly brighter than the 650 nm. It is also considered a true red and is the color of our Power Pro Lasers. The 671 nm is known for its long-term output power stability. It is widely used in research labs.
Uses for Red Lasers
Our Touchpad Pro Red Laser is also set at a 635 nm wavelength. This allows a range of 3,000 feet (914 meters) without any loss of brightness. These are popular in settings where pinpoint accuracy over a long range is preferred. Our Slimline Red Laser Presenter is set at 650 nm wavelength. Educators and trainers favor models like this, not only because it is wireless (up to 30 feet), but the laser is still bright at 1,500 feet (457 meters). We even designed a red laser for use on a pool cue. Set at 650 nm, this red laser helps develop a player’s accuracy and works well against a pool table’s felted surface.
The uses for a red laser are many. Whatever red laser pointer you choose, the light will be comfortable for the human eye and will function well even in sub-optimal conditions.
Reach out if we can answer any questions about which laser pointers are right for your business.