How much does it cost to buy a laser pointer?
The price of the laser remote control is between US$6 and US$20. However, the price range depends on the type of laser beam used in the pointer. If you are buying a green pointer, you may need to pay approximately $100 or more. On the other hand, the price of the red laser pointer on the market is only $5. The price of the high powered laser pointer also varies depending on the brand, type of structure, control function and other factors. When buying pointers, make sure to keep your budget within the limits so that you can get great presenters at an affordable price. Pointers can be purchased at novelty stores, mail order magazines, office supply stores, general electronics stores and the Internet. The power range of these laser pointers is 1 to 5 milliwatts (mW). Class I and Class II laser pointers are very safe to use, but they should not be pointed directly at anyone's eyes. In addition, if you are using a Class III laser, you need to wear protective equipment because it can cause some serious skin infections.
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The main potential hazard of pointers is limited to the unprotected eyes of individuals viewing the direct beam of laser light, as skin hazards are generally not present. The eye's natural aversion to bright lasers or blinking reflections (~0.25 seconds) usually limits the exposure of these devices to safe levels. The laser beam can cause serious damage to the skin and eyes. If the laser is very powerful, it can cause skin burns, retinal damage, etc. This is why it is important to check the safety certificate and rating of the laser beam before buying any pointer. The use of laser diode pointers operating in the visible radiation region (400 to 760 nanometers [nm]) is becoming more and more common. These instructions are intended for use by educators when giving lectures in classes or conferences. They are also useful in any situation where special items need to be pointed out in any instructive situation.
2021-11-29 12:36:30
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