'Laser pen' diaporamas de présentation

green laser pointer real output power

The use of real laser pointer has become widespread. Pointers are useful tools for classroom and conference education workers. However, due to the cost is low, supply is everywhere, the pointer is now, including children, the public purchase and use, and use in the form of manufacturer has no intention of using. As a result, the danger of a laser pointer is serious. Although most of the low power laser diode is contained in a laser designator, but on the market the most powerful laser, most imported from other countries. There is no limit to the laser pointer purchase in the United States. The fda has issued a 2,000-megawatt laser of purchase warning, insisting that the use of indicators is different than toys, not children, unless adult supervision.

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