For some daily activities of the blue laser pointer

The blue laser pointer, like other color laser pointers, is designed to be visible to the human eye. There is no need to delve into the science of why blue is a popular color. A brief description of the color can help you determine which color laser pointer is suitable for your needs. Most people can see rainbow-like colors. Remember the ROYG BIV that learned the spectrum at school since childhood? Red orange yellow green blue indigo purple. These colors belong to the visible spectrum of the human eye. Lasers are made of diodes, and when combined with energy sources (such as batteries), they can convert energy into light. The laser pointer does not require much energy to work. In fact, low power helps to hide the laser until it hits an opaque surface such as a wall or whiteboard.