Dclikre
- Rechargeable Red Laser...Amazon.com$17.99
- MIPREZT Rechargeable...Amazon.com$17.99
- DCLIKRE Green Laser...Amazon.com$17.49
- MIPREZT Rechargeable...Amazon.com$23.99
- Cardellini Green Laser...B&H Photo-Video-Pro Audio$111.73
- USB Rechargeable Laser...LightInTheBox$9.99$14.39
- Cowjag Long Range Green ...Amazon.com$13.99
- DCLIKRE Red Laser Pointer...Amazon.com$17.45
- Green Laser Pointer,...Amazon.com$9.99
- LUEIIN Long Range Laser...Amazon.com$12.99
- Green Laser Pointer High...Amazon.com$9.99
- YEHUOT Long Range...Amazon.com$17.99
- UNBIU Long Range Laser...Amazon.com$13.99
- Cowjag Laser Pointer High...Amazon.com$22.99
- Outdoor 3Pcs Mini...LightInTheBox$13.39$17.78
- [2 Pack] Rechargeable...Amazon.com$29.99
- Green Laser Pointer, Long...Amazon.com$26.99
- IVVTRYI Green Laser...Amazon.com$8.99
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A laser pointer or laser pen is a (typically battery-powered) handheld device that uses a laser diode to emit a narrow low-power visible laser beam (i.e. coherent light) to highlight something of interest with a small bright colored spot.
Blue, direct diode semiconductor lasers can be built using inorganic gallium nitride (GaN) or InGaN gain medium, upon which many (dozens or more) layers of atoms are placed to form the active part of the laser that generates photons from quantum wells.
In the period from 1999 to 2016, increasing attention has been paid to the risks posed by so-called laser pointers and laser pens. Typically, the sale of laser pointers is restricted to either class 3A (<5 mW) or class 2 (<1 mW), depending on local regulations.
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directional pad – a very simple keyboard. Dance pad – used to point at gross locations in space with feet. Soap mouse – a handheld, position-based pointing device based on existing wireless optical mouse technology. Laser pen – can be used in presentations as a pointing device.
Laser engraving is the practice of using lasers to engrave an object. Laser marking, on the other hand, is a broader category of methods to leave marks on an object, which in some cases, also includes color change due to chemical/molecular alteration, charring, foaming, melting, ablation, and more.