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  2. Laser safety - Wikipedia

    en.wikipedia.org/wiki/Laser_safety

    The coherence and low divergence angle of laser light, aided by focusing from the lens of an eye, can cause laser radiation to be concentrated into an extremely small spot on the retina. A transient increase of only +10°C (+18°F) can destroy retinal photoreceptor cells. If the laser is sufficiently powerful, permanent damage can occur within ...

  3. Protocol on Blinding Laser Weapons - Wikipedia

    en.wikipedia.org/wiki/Protocol_on_Blinding_Laser...

    The Protocol does not prohibit attacks against binoculars, periscopes, telescopes, and other optical equipment because it was unknown whether laser attacks on such devices could cause permanent blindness. [4] Article 3 allows for attacks on electronic optical equipment, because damaging it would not cause human injury. [4]

  4. Lasers and aviation safety - Wikipedia

    en.wikipedia.org/wiki/Lasers_and_aviation_safety

    To give another example, of a more powerful laser—the type that might be used in an outdoor laser show: a 6-watt green (532 nm) laser with a 1.1 milliradian beam divergence is an eye hazard to about 1,600 feet (490 meters), can cause flash blindness to about 8,200 feet (1.5 mi/2.5 km), causes veiling glare to about 36,800 feet (7 mi; 11 km ...

  5. Scientists set lasers on cells, end up playing Pong - AOL

    www.aol.com/news/2009-09-17-scientists-set...

    When lit up in a pattern of a circle or square, the cells can then be isolated and moved about at will or, conceivably, even be used for a game of Pong. Check out the video after the break to see ...

  6. The Blue Light Emitted From Electronics Can Cause ... - AOL

    www.aol.com/news/blue-light-emitted-electronics...

    The Blue Light Emitted From Electronics Can Cause Accelerated Blindness, Study Finds. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800-290-4726 more ways to ...

  7. Laser - Wikipedia

    en.wikipedia.org/wiki/Laser

    Even lasers with a power output of less than one watt can cause immediate and permanent vision loss under certain conditions, making them potentially non-lethal but incapacitating weapons. The use of such lasers is morally controversial due to the extreme handicap that laser-induced blindness represents.

  8. Stem cells, blindness and why the media loves miracle cures - AOL

    www.aol.com/news/2014-10-15-stem-cells-blindness...

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  9. Optical tweezers - Wikipedia

    en.wikipedia.org/wiki/Optical_tweezers

    A typical setup uses one laser to create one or two traps. Commonly, two traps are generated by splitting the laser beam into two orthogonally polarized beams. Optical tweezing operations with more than two traps can be realized either by time-sharing a single laser beam among several optical tweezers, [ 54 ] or by diffractively splitting the ...