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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. The small width of the beam and the low power of typical laser pointers make the beam itself invisible in a ...
Home projector, primary light source for some recent small projectors AlGaInP, AlGaAs: 0.63-0.9 μm Optical discs, laser pointers, data communications. 780 nm compact disc, 650 nm general DVD player and 635 nm DVD for Authoring recorder laser are the most common lasers type in the world. Solid-state laser pumping, machining, medical.
Laser pointers in different colours. 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.
Reports of lasers illegally pointed at aircraft in flight rose to a new high in 2023, the latest spike in a series of steady increases during the past decade.
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Home & Garden. Lighter Side. News. Online Classes. Science & Tech. Shopping. Sports. Weather. 6 Best Cold Laser Therapy Devices to Use at Home. Kelsey Mulvey. May 17, 2024 at 7:22 AM.
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