Initially, laser points were available only in red color but now, lasers in green, blue and yellow colors are also available. Among these, blue is the most powerful and red is the most dangerous. However, all four are equally harmful if made direct contact with them. These laser pointers are cylindrical in shape, very small in size just like a pen. They are very handy and easy to store but delicate tool. The main use of laser pointers is to project a point or particular spot with a beam from distance to be shown to others like in presentations, seminars etc. Powerful laser points are used in aeronautical fields. Like, spaceships, rockets.

As these lasers are very powerful laser pointer, all latest developed arms mainly the sniper rifles are coming with red laser pointers, which help in targeting the definite point. Pointers show the aimer the exact point where the bullet will hit and it helps in achieving the desired result. There are certain precautionary measures related to use of powerful laser points, which should be strictly followed:-

• The naked eyes should never be brought with direct contact to lasers. It might harm the retina inside the eye. The beams when they emerge from the equipment are very powerful and might cause serious damage if made direct contact. Should be strictly watched.
• These lasers should never be pointed towards other. Always, should be pointed facing towards wall or the floor. This might cause injuries to others.
• These powerful laser pointers should never be repaired on own as they are made with powerful lenses which might damage if repaired on own.

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