In this article, we shall look into the kind of laser light which is used, the ways they are used and what kind of procedures should be kept in mind while using laser beams. A laser lighting display or a laser light show involves the use of laser light to entertain a gathering of people. A laser lights show may consist of projected laser beams which are set in sync with the music which is played. It may also at the very same time accompany other forms of entertainment which are usually musical performances. Stage lights are useful in the purpose of entertainment because the absorbing nature of laser lights allows a narrow beam of light to be produced and allows the use of optical scanning to draw certain patterns or images on walls, ceilings or other surfaces including theatrical smoke and fog without having the need to refocus for the differences in distance; something which is very common with video projection. Laser scanners consist of small mirrors which are mounted on an instrument known as the galvanometer to which a control voltage is applied. The beam is deflected a certain amount which correlates to the amount of voltage which is applied to the galvanometer scanning.

In this part of the article, we shall focus our attention to the kind of safety precautions which must be incorporated such as to ensure that our health is not at stake. Some lasers have the potential to cause damage of the eye if aimed directly into the eye. Some high powered lasers used in the purpose of entertainment have also been found to cause burns or damage of the skin if ample energy is directed towards the human body at a range which is close enough. Safety precautions which are used by professionals who operate in the world of laser light include beam stops, and procedures such that the beam is projected right above the heads of the audience. It is possible and it is indeed a custom in some countries to perform audience scanning. In such a case, the show is supposed to be designed to keep the beam moving such that no harmful amount of laser is ever received by any individual member of the audience.

Henceforth, if these simple precautions are kept in mind, laser shows would surely be an experience of fun and frolic.

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