A high power laser pointer has laser emission that falls in the range of Class 3b and Class 4 lasers. Class 3b laser pointers have power output ranging from 5 mW to mW. These laser pointers can cause permanent eye injury when the eye is exposed to the direct beam or specular reflection of the beam. The severity of the eye injury will be dependent on the power of the laser beam entering the eye and the duration of the exposure. Class 3b lasers with power output approaching the upper end of the range may also cause skin burns.
Class 4 laser pointers have power output greater than mW. These laser pointers can cause immediate and permanent eye injury when the eye is exposed to the direct beam or specular reflection of the beam. Hence, NEA generally would not approve any licence applications for high power laser pointers to members of the public. There are cases where high power laser pointers were erroneously classified as Class 1, 2 or 3a lasers.
The images below show some examples of high power laser pointers. The following are some useful guidelines one should observe when operating a laser pointer:.
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The following are guidelines one should observe when operating a laser, and are useful for people handling laser pointers:. Should I buy laser pointers over the Internet? How do I apply for licences to own and use a controlled laser? The following are guidelines one should observe when operating a laser, and are useful for people handling laser pointers: Do not operate a laser if the hazard class of the laser is not shown on the warning label for the laser.
Never aim or shine a laser beam at yourself, at anyone or at an aircraft or a moving vehicle. Laser radiation should be discharged in a background that is non-reflective and fire resistant.
The target area where a laser beam shines on should be cleared of personnel for a reasonable distance. Warning signs should be attached to laser equipment in a conspicuous location indicating the potential eye hazard associated with laser.
Avoid aiming laser with eye or looking along the axis of the beam. Laser work should be carried in areas of high general illuminations to keep pupils constricted; this will limit the laser energy which might inadvertently enter the eyes.
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