page_title: Laser pointer
hierarchical_section_title: Laser pointer
caption_attribution_description: English: Laser pointers Red Laser 635nm Green Laser 520nm Blue Laser 445nm
context_page_description: A laser pointer is a small device that shines a low-powered laser light. The pointer is usually powered by a battery. It contains a laser diode that emits a very narrow laser beam of visible light. When pointed at an object, it shines a small bright spot of colored light. The pointer is held in a hand. It is used to highlight something of interest. Power is restricted in most jurisdictions not to exceed 5 milliwatts.
context_section_description: A laser pointer (or laser pen) is a small device that shines a low-powered laser light. The pointer is usually powered by a battery. It contains a laser diode that emits a very narrow laser beam of visible light. When pointed at an object, it shines a small bright spot of colored light. The pointer is held in a hand. It is used to highlight something of interest. Power is restricted in most jurisdictions not to exceed 5 milliwatts.
caption: Red (635 nm), green (520 nm) and blue (445 nm) laser pointers
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