How many mW is a Class 3 laser?

How many mW is a Class 3 laser?

5 to 499 milliwatts
Class 3B visible-beam lasers are medium powered, from 5 to 499 milliwatts. A Class 3B laser can cause eye injury. The more powerful the laser, the greater the chance of injury.

What is a Class 3 laser used for?

Class 3 lasers are medium power lasers or laser systems that require control measures to prevent viewing of the direct beam. Control measures emphasize preventing exposure of the eye to the primary or specularly reflected beam.

How far can a Class 3 laser go?

The Nominal Ocular Hazard Distance (NOHD) for the most powerful Class 3R visible-beam laser (4.99 mW) with a tight beam (0.5 milliradian divergence) is 104 ft (32 m).

Can a Class 3a laser blind you?

Exposure of a person’s eyes to a momentary sweep of Class 2 or Class 3 laser beam can result in temporary flash blindness, afterimage and glare which can be particularly dangerous if the individual is engaged in a vision-critical activity.

Are Class 3 lasers safe?

A Class 3R laser is considered safe if handled carefully, with restricted beam viewing. With a class 3R laser, the MPE can be exceeded, but with a low risk of injury. Visible continuous lasers in Class 3R are limited to 5 mW. For other wavelengths and for pulsed lasers, other limits apply.

Can civilians own class 3B lasers?

However, this class of lasers can be purchased second hand and there is not a restriction to civilian ownership or possession. For those wanting to possess a Class 3 laser they should be aware that not all, but many Class 3 lasers on the market have been obtained illegally and it is illegal to possess stolen property.

What mw laser will burn?

Now, today lasers can go from less than 5mW all the way up to 5,000mW or 5W. So that means knowing where the burning threshold is and that threshold is at a minimum of 100mW as a general rule. That means that any laser below 100mW will be hard-pressed to burn anything and will flat out not be able to.

Can my laser reach the moon?

The typical red laser pointer is about 5 milliwatts, and a good one has a tight enough beam to actually hit the Moon—though it’d be spread out over a large fraction of the surface when it got there. The atmosphere would distort the beam a bit, and absorb some of it, but most of the light would make it.

Can 100 mW laser burn paper?