class 3A laser definition
class 3A laser means class 3A laser product as defined by Section 3.12 of the laser safety standard;
class 3A laser means a laser or laser system that produces moderate levels of visible or invisible laser radiation of 1 to 5 mW and requires more stringent control than a Class 2 laser. For those Class 3a lasers whose output is visible, the normal aversion response is generally sufficient to prevent eye injury. However, the use of collecting optics, e.g. bin- oculars, can produce retinal injury. Because the radiation beam is not observed in Class 3a laser that produces ultravi- olet or infrared emissions the accessible emission level does not rely upon the normal aversion response, but rather on the fact that the eye of the exposed individual will not fixate on the radiation beam long enough to cause injury.
class 3A laser means a laser or laser system that produces moderate levels of visible or invisible laser radiation of 1 to 5 mW and requires more stringent control than a Class 2 laser. For those Class 3a lasers whose output is visible, the normal aversion response is generally sufficient to prevent eye injury. However, the use of collecting optics, e.g. bin-