Doing a good job in the management of employees' personal protective equipment is the need to protect the legitimate rights and interests of employees, and it is also an inevitable requirement and an important part of doing a good job in production safety. So, are laser protective glasses useful?
Not using or using protective glasses incorrectly not only brings hidden dangers to on-site safety production, but also greatly endangers the health of workers. So, are laser protective glasses useful? Let the editor of Baibai Safety Net go with you to find out!
Laser protective glasses are very useful, mainly to prevent laser damage to the eyes. Because the laser energy is highly concentrated, it is very harmful to the eyes and even has the risk of blinding, so laser workers must wear laser protective glasses.
Types and protective principles of laser protective glasses:
Laser protective glasses mainly include absorption type, reflection type, compound type, explosive type, photochemical reaction type, glass-ceramic type and so on.
1. The absorption type is to add various absorbers to the glass or plastic lens to absorb the laser and make it impenetrable.
2. Reflective type is to coat a set of high refractive index dielectric film on the lens. When the light hits the dielectric film, all the reflected light phases on the interface are the same, so that the reflection of light at this wavelength is strengthened. The purpose of protecting glasses is to have high transmission ability to other visible light.
3. The compound type is composed of two reflective medium films, separated by a layer of color-absorbing glass in the middle to suppress unwanted internal reflection between the two reflective films. This kind of glasses has a better protection performance for lasers and a large safety factor, which is suitable for the protection of large and medium power lasers.
4. Explosive type is to coat a layer of explosives on the lens. When the incident laser intensity reaches a certain value, it quickly detonates to shield the laser and is used in the military to prevent laser weapons from injuring the eyes.
Each type of laser safety glasses has its own characteristics. Generally, it can only prevent one wavelength of laser light, and a few can prevent two or more wavelengths of laser light. Therefore, you must choose the appropriate laser goggles according to the laser used.