- Quartet® Laser Pointer,...Global Industrial$59.95
- Quartet® Class 3 Classic...Global Industrial$52.95
- Classic Comfort Laser ...Good Pupils$92.98
- 5Mw 532Nm Green Military...LaserPointerPros$44.95$74.95
- Classic Comfort Laser ...Good Pupils$92.98
- Marathon Green Laser ...Optics Planet$90.00
- Rechargeable Red Laser ...Amazon.com$17.99
- United Scientific Laser ...Certified MTP$52.98
- Cardellini Green Laser ...B&H Photo-Video-Pro Audio$111.73
- USB Rechargeable Laser ...LightInTheBox$9.99$14.39
- Quartet Classic Comfort ...School Specialty$83.21$110.95
- Cowjag Long Range Green ...Amazon.com$13.99
- Laser 303 - The High...Vernier$29.97
- General Purpose Metal ...Good Pupils$73.98
- Cardellini Red Laser ...B&H Photo-Video-Pro Audio$55.13
- DCLIKRE Green Laser ...Amazon.com$17.49
- Quartet General-Purpose ...School Specialty$57.71$76.95
- 200 Miles 650Nm Red Laser...motorgenic.com$22.88
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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.
Nd:YAG laser with lid open showing frequency-doubled 532 nm green light. Nd:YAG laser rod. Nd:YAG ( neodymium-doped yttrium aluminum garnet; Nd:Y3Al5O12) is a crystal that is used as a lasing medium for solid-state lasers. The dopant, neodymium in the +3 oxidation state, Nd (III), typically replaces a small fraction (1%) of the yttrium ions in ...
A laser differs from other sources of light in that it emits light that is coherent. Spatial coherence allows a laser to be focused to a tight spot, enabling applications such as laser cutting and lithography. It also allows a laser beam to stay narrow over great distances ( collimation ), a feature used in applications such as laser pointers and lidar (light detection and ranging). Lasers can ...
Laser diodes are the most common type of lasers produced, with a wide range of uses that include fiber-optic communications, barcode readers, laser pointers, CD / DVD / Blu-ray disc reading/recording, laser printing, laser scanning and light beam illumination.
Pointing a laser at an aircraft can be hazardous to pilots, [1] and has resulted in arrests, trials and jail sentences. It also results in calls to license or ban laser pointers. Some jurisdictions such as New South Wales, Australia have restricted laser pointers as a result of multiple incidents. [2]
Many scientific, military, medical and commercial laser applications have been developed since the invention of the laser in 1958. The coherency, high monochromaticity, and ability to reach extremely high powers are all properties which allow for these specialized applications.