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2. Laser pointer - Wikipedia

   en.wikipedia.org/wiki/Laser_pointer

   Red (635 nm), blueish violet (445 nm), and green (520 nm) laser pointers. 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.

3. List of laser types - Wikipedia

   en.wikipedia.org/wiki/List_of_laser_types

   Laser types with distinct laser lines are shown above the wavelength bar, while below are shown lasers that can emit in a wavelength range. The height of the lines and bars gives an indication of the maximal power/pulse energy commercially available, while the color codifies the type of laser material (see the figure description for details).

4. Laser safety - Wikipedia

   en.wikipedia.org/wiki/Laser_safety

   If the IR radiation is allowed into the beam, which happens in some green laser pointers, it will in general not be blocked by regular red or orange-colored protective eyewear designed for pure green or already IR-filtered beam. Special YAG laser and dual-frequency eyewear are available for work with frequency-doubled YAG and other IR lasers ...

5. Lasers and aviation safety - Wikipedia

   en.wikipedia.org/wiki/Lasers_and_aviation_safety

   A blue or red laser will appear much dimmer—and thus less distracting—than a green or yellow laser of equal power. [8] For example, a 10-watt continuous-wave yttrium aluminium garnet laser at 532 nanometers (green) can appear brighter to the eye than an 18-watt continuous-wave argon-ion laser that outputs 10 watts of 514 nm (green-blue ...

6. AN/PEQ-2 - Wikipedia

   en.wikipedia.org/wiki/AN/PEQ-2

   The AN/PEQ-2 Infrared Target Pointer/Illuminator/Aiming Light (ITPIAL) is a laser sight for use on rifles fitted with a Picatinny rail. It was manufactured by Insight Technology . [ 3 ]

7. "Better than Crest Whitestrips" — This teeth whitening pen is ...

   www.aol.com/lifestyle/better-than-crest-white...

   This pen has a suite of followers on Amazon, so we dive into what people love and whether you should check it out. "Better than Crest Whitestrips" — This teeth whitening pen is more than half ...