Blue Light Laser Pointers: What You Need to Know

June 17, 2021
By Alpec
blue light laser pointer

Blue light laser pointers, like other colors of laser pointers, are designed to be visible to the human eye. Without geeking out too much on the science of why blue is a popular color, a short discussion of color might help you make a decision about which color laser pointer is right for your needs.

Most humans can see a rainbow of colors. Remember ROY G BIV from when you were a kid learning about spectrums at school? Red Orange Yellow Green Blue Indigo Violet. These colors fall onto a spectrum that is visible to the human eye. 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.

Blue light laser pointers and other laser pointers, 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. Blue light laser pointers track at 450 nm, 473 nm and 488 nm, with a blue laser pointer 450nm being the most popular. Why? They can be made into very compact and lightweight tools, function well even at high temperatures (up to 65°C/149°F) and, most importantly, are very bright to the human eye. Human eyes like this wavelength – it is close to the peak of a human eye’s sensitivity.  

Whether you choose a blue laser pointer 450nm or a blue light laser pointer at a wavelength that is more comfortable for your eyes, these Alpec tools are optimally designed to function perfectly even in imperfect conditions and are ideally suited for human vision.