LASER CLASSES Overview

This laser class includes laser devices that are not expected to cause damage to the eyes or skin, even when the laser beam is viewed directly. They do not pose any danger and do not require any special protective measures.

Class 1M lasers, like class 1, are not dangerous, but can pose a risk to the eye when used with optical instruments such as magnifying glasses or binoculars. Care must be taken to ensure that such instruments are not used.

This class includes laser devices that operate in the visible range (400-700 nm) and pose a low risk to the eyes. The natural eyelid closure reflex normally protects the eyes from damage. The maximum permissible power for class 2 lasers is 1 milliwatt.

Class 2M lasers are similar to class 2, but can pose an increased risk to the eye when used with optical instruments. The use of such instruments should be avoided.

This class includes laser devices that pose a low risk of eye damage when looking directly into the beam. It is recommended that you do not look into the beam or expose yourself to the radiation for long periods of time. The maximum permissible power varies depending on the wavelength and is normally up to 5 milliwatts.

This class includes laser devices that can potentially cause eye and skin damage. Direct contact with the beam or reflected beam should be avoided. The maximum permissible power varies depending on the wavelength and can be up to several hundred milliwatts.

This class includes high-power lasers that can cause both eye and skin damage. Direct or indirect contact with the beam or reflected beam can cause serious injury. Class 4 lasers have no power limit and can operate in both the visible and invisible spectrum.