How to Use a Laser Pointer safely

  Teachers and lecturers have used laser pointers for years to highlight key areas on charts and screens during visual presentations. Recently, with reduced cost of manufacturing, the consumer now has a variety of features to choose from, including different colors and styles. The visible range of a laser pointer can vary considerably depending on wavelength, output power and environmental factors such as background illumination and air quality.

   There are plenty of things you can do that are safe and fun with a laser pointer. As the old saying goes, “Safety first!” because nobody wants to get hurt, but don’t let that prevent you from being creative with your laser pointer.

Steps

1.Never point your laser at another person, especially their face.

2.Never under any circumstances look directly into the laser beam. Even if it is a low powered laser pointer, you don’t want to take chances with your eyes.

3.Always be conscious of and aware of reflective surfaces such as mirrors, polished metal or glass. A reflected beam can also harm your eyes.

4.Only use laser pointers in a controlled environment.

5.Do not let other people use your laser pointer unless they are fully aware of the dangers of laser pointers.

6.Laser pointer beams can go for miles so never randomly use your laser pointer outside.

7.When in doubt, use safety glasses. Most laser pointers sold commercially have an output of about 5mW. This is generally safe for your eyes, provided you do not look into the laser beam for more than a few seconds. Laser pointers with a higher output (especially green) should require laser glasses or goggles. SUNGLASSES AND WELDING GEAR DO NOT WORK. These simply make your pupils dilate, making it easier to cause damage! Remember that there is no price tag on your eyes, and to buy glasses that are calibrated to the colour of your laser. There are no universal goggles.