What is a class 3 laser pointer?
Sometimes, these Laser pointer can have different labels, and the numbers can be replaced by Roman numerals, and they are classified as Class IIIa and Class IIIb. For example, the definitions of Class 3R and Class IIIa may be different, but the results are similar. The lower of the two is a Class 3R (Class IIIa) laser, which is closer to Class 2 in terms of power and damage. It has a slightly higher risk than Category 2 and requires less than 5 milliwatts of power to be used effectively. If the laser comes into contact with the eyes inadvertently, the risk will be low if the contact time is very short. Although intentional or direct contact with the laser beam or reflected beam should be avoided, the laser is not considered a hazard to the skin or materials and does not generate too much heat.
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The higher of the two is a Class 3B (Class IIIb) laser, which is closer to Class 4 in terms of power and damage. Although the Class 3R laser may make small but short contact with the eyes without causing injury, the Class 3B laser should not be aimed completely at the eyes. This type requires 5 to 499 milliwatts of power to use, and is not as powerful as type 4, but if the laser lasts for too long, it will cause damage. If the beam is kept on a close object, a Class 3B laser can heat the skin and materials. The transmission distance of Class 3B laser beam can reach 116,890 feet or 99 miles.
2021-10-08 09:00:16
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