Laser Classes

Laser classes chart lasers are classified based on their potential for causing injury — especially eye damage, since the eye is most susceptible to excess laser light. there are four main classes for visible-beam lasers: class 2, class 3r, class 3b and class 4. the first two are relatively safe for eye exposure; the last two are hazardous.. Class 4 is the highest and most dangerous class of laser, including all lasers that exceed the class 3b ael. by definition, a class 4 laser can burn the skin, or cause devastating and permanent eye damage as a result of direct, diffuse or indirect beam viewing.. A class 3b laser product, however, is normally not a fire hazard, diffuse reflection hazard, or a laser generated air contaminant (lgac) production hazard. class 4. this type of laser is the most hazardous. class 4 lasers care unsafe when a direct beam is exposed to the eye or skin..

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Classes of lasers (adopted from ansi z-136.1-2007) class 1. not capable of emitting in excess of the class 1 acc essible emission limit (ael) (note: ael's vary by laser wavelength and pulse duration) most lasers in this class are lasers which are in an enclosure which prohibits or limits access to the laser radiation.. Class 2, and such lasers are usually labeled as class 2. we are unaware of any class 1m laser devices intended for consumer use. if you do have such a laser, consult a qualified laser safety officer for more detailed analysis. class 2 (and 2m) only applies to visible lasers. infrared and ultraviolet lasers cannot be class 2 (or 2m). we are. Class 1m lasers have wavelengths between 302.5 nm and 4000 nm, and are safe except when used with optical aids (e.g. binoculars). class 2 lasers do not permit human access to exposure levels beyond the class 2 ael for wavelengths between 400 nm and 700 nm. any emissions outside this wavelength region must be below the class 1 ael..