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 LASER POINTER Definition
We define LASER POINTER |
LASER POINTER - This is typically a pen-shaped device that emits a bright red laser light that appears as a red dot on any surface at which it is aimed. In a smoke-filled room, fog, or other similar environmental conditions, you can see the entire beam and not just the endpoint of the laser. Laser pointers started out as a means for presenters to easily point to specific areas of their presentations on large displays, and as their price came down they evolved into a means to harass people at sporting and other events. Laser pointing devices are also used to target long-range rifles, as the distance a laser light beam can travel without dispersing is quite impressive, and light travels in a relatively straight line unless it is reflected or refracted. Newer pointers also come in green. |
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