LASER safety

What is LASER safety ?

LASER safety is a major concern when working with devices that emit narrow of beams high-energy light radiation as they pose risks to users and people in the surrounding environment. These risks mainly relate to the potential damage that this radiation can cause to the eyes and skin. For example, exposure to a high-power laser can cause burns to the retina or skin, injuries that may be irreversible.

In addition to these direct risks, lasers can also cause indirect hazards, such as fires or explosions, especially when used in environments containing flammable materials. It is therefore crucial to fully understand and manage these risks to ensure the safety of users and those around them.

Furthermore, European regulations strictly govern the use of lasers and the assessment of their hazards.

Due to their specific electro-optical characteristics and the development of solid-state or semiconductor sources that allow for low power and very compact system dimensions, lasers are increasingly used in automotive and medical applications. This deployment thus increases the population’s exposure to laser risk.

Laser safety therefore involves assessing the risk associated with exposure to optical radiation, classifying the device, implementing protective measures, and complying with regulations.

LASER risk assessment

Laser risk assessment is based on the conditions of use of the device and its hazard class according to IEC 60825.  The LASER class is assessed based on specific device parameters, such as the optical power emitted , the beam divergence, and the wavelength of the radiation . Depending on the class of the device, this leads to the implementation of appropriate protective measures.

Our experts have extensive experience in the implementation and characterization of light sources and systems incorporating them. Active in the standardization of test methods for assessing the optical risks associated with these sources and systems, our experts are able to determine exposure levels and compare them to the safety limits established by regulations. They are therefore able to assist you in assessing the LASER risk associated with the sources and devices you use.

LASER classification

LASERS and devices incorporating LASERS are classified according to their level of danger. This classification is mandatory for all products marketed in Europe. According to the IEC 60825-1 standard, lasers are classified from Class 1 (safe) to Class 4 (very dangerous). This classification makes it possible to define the associated safety requirements.

Our optical laboratory has the expertise, methods, and appropriate testing equipment to perform classification tests on LASERS and devices incorporating them in accordance with the requirements of the IEC 60825 series of standards.

How can LASER risk be reduced ?

Laser risk reduction begins at the product design stage. It is essential to minimize exposure to laser radiation through technical means, such as integrating passive or active safety devices, implementing beam containment systems, or limiting output power.

Careful and safe design of laser devices requires in-depth expertise in the field of optics and photonics.

We are able to support our customers in the development of innovative solutions that comply with the most stringent safety standards. Our expertise allows us to optimize systems to reduce risks while maintaining the required performance.

LASER safety regulations

The regulatory framework for the use of lasers is strictly controlled, in particular by the NF EN 60825 standard, which defines the safety requirements for laser equipment. This standard classifies lasers into different categories according to their level of potential danger, ranging from classes 1 to 4, with each class representing an increasing level of risk. The NF EN 60825 standard also imposes requirements in terms of signage, user training, and the implementation of protective measures.

Our experts participate, among other things, in the work of the AFNOR UF76 standardization commission, as well as that of ConSOL (National Commission for Optical and LASER Safety). They are therefore fully aware of the regulations and ensure that all the products we evaluate and develop comply with them.

Entrusting laser risk management to PISÉO means choosing technical excellence, maximum safety for your products, and regulatory compliance.

Please do not hesitate to contact us with any questions you may have about the LASER safety of your devices.