Definition - What does Laser Pointer mean?
A laser pointer is a small pen-like handheld device that uses a power source (usually batteries) and diode laser to produce a coherent beam of monochromatic light. Laser pointers are used mainly for highlighting a point of interest by using a strongly colored beam of light. Typical low-end laser pointers that come with key chains are nothing more than strong LEDs to ensure safety.
Techopedia explains Laser Pointer
Laser pointers are made up of IR-pumped frequency doubled called diode-pumped solid-state laser which typically produce a beam of red, green, blue and violet, of higher visible power, typically up to 300 mW. Original laser pointers have some safety hazards, as they can be very dangerous if pointed towards skin or eye, causing serious damage, and are to be used with great care. Laser pointers were introduced to make use of low powered laser tool for everyday use.
Laser pointers are most commonly used in business or educational presentations to highlight or point out certain things. Laser pointers of higher power are also used in astronomy to point out celestial objects. Laser pointers are also used in a variety of other ways, such as on weapons for targeting accuracy and on levels used in construction.
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