Class IIIb lasers cannot legally be promoted as laser pointers or demonstration laser products. Higher powered Class IIIb or IEC Class 3B lasers are dangerous and can cause either temporary visual effects or an eye injury.
What is a Class 3B laser used for?
Class 3B lasers are intermediate power (CW 5-500 mW or pulsed 10 J/cm²) devices. Some examples of Class 3B laser uses are spectrometry, stereolithography, and entertainment light shows.
Are class 3B lasers effective?
3B lasers are safer. If the Class IV laser is in the 940 – 980nm wavelength range then it will penetrate less than a class 3B laser in the 800nm to 900 nm range. 3B lasers have less stringent regulations (rules vary by country and state).
What is a Class 3B laser product?
Class 3B laser products may have an output power of up to 500 mW (half a watt). Class 3B laser products may have sufficient power to cause an eye injury, both from the direct beam and from reflections. The higher the radiant power of the device the greater the risk of injury.
What is class 3B 4 laser?
Class 3B (and 4) lasers are too powerful to be used as pointers. Some Class 3B (and 4) lasers may look like pointers, but these should not be used for pointing. Use a Class 2 (less than 1 mW) or Class 3R (less than 5 mW) laser for pointing purposes. Class 3B visible-light lasers are hazardous for eye exposure.
What is a class four laser?
WHAT IS A CLASS 4 LASER? Class 4 lasers are hazardous for eye exposure. They also can burn skin and materials, especially dark and/or lightweight materials at close range. They should be used with extreme care. For visible-light lasers, Class 4 lasers’ have an output power 500 milliwatts and above.
What is a Class 4 laser product?
For visible-light lasers, Class 4 lasers’ have an output power 500 milliwatts and above. There is no upper limit for Class 4 — this is the most hazardous laser classification. Class 4 is the same as the Roman numeral “Class IV” you may see on some lasers’ labels.
