What should you pay attention to when buying laser safety glasses?

In today's era of increasingly common laser technology, people are encouraged to wear laser safety glasses in industries or work environments that use laser equipment. There are so many types of laser protective glasses on the market. What should we pay attention to when buying them?

When buying laser safety glasses, you need to pay attention to the following aspects:

Wavelength matching: Different lasers produce different laser wavelengths. It is necessary to ensure that the protective wavelength range of protective glasses covers the laser wavelength to be protected. For example, if a device or laser uses a 585nm dye laser, we need to buy glasses that include 585nm protection, otherwise it will not play an effective protective role.The LP-DHP laser safety glasses of LaserPair are used to protect the 585nm laser wavelength.

Optical density (OD value): OD value is a key indicator to measure the ability of laser glasses to attenuate laser radiation. The higher the OD value, the stronger the attenuation ability of the glasses to the laser, and the stronger the protection ability. The required OD value should be determined according to the maximum irradiation or irradiance of the laser equipment. Generally speaking, for high-power laser equipment, protective glasses with higher OD values are required. For example, if you work in a laser welding or laser cutting environment, you need to buy laser protective glasses with high OD values and high protection levels. Because laser welding and laser cutting equipment often have high power, protective glasses with OD7+ or above are required. Our LP-YHP-2 DIN4 laser safety glasses and LP-ADY-3 DIN4 laser safety glasses from Rayscreen Technology are widely used in industrial fields such as laser welding and laser cutting.

Visible light transmittance (VLT): VLT indicates how much visible light the lens can transmit. The higher the VLT, the better the clarity. However, the transmittance of some laser protective glasses will be less than 20%, and it will basically become unclear at this time, and you need to consider adding auxiliary lighting. It is necessary to select protective glasses with appropriate VLT according to the requirements of visual clarity in the use scenario. For example, in occasions where delicate operations are required, laser glasses with higher VLT should be selected. For example, in the medical industry, doctors need to see the parts that need to be treated and the treatment conditions clearly, and need to use protective glasses with high light transmittance. Our LP-ATD laser safety glasses from LaserPair are very popular among doctors.

Laser mode and LB level: According to the EN207 standard, lasers are divided into four modes: D, I, R, and M. The LB level consists of three parts: wavelength range, laser mode name, and scale number. When choosing protective glasses, it is necessary to select products with corresponding LB levels according to the actual laser mode and wavelength range used to ensure the protective effect.

Safety certification: Check whether the glasses have relevant safety certifications, such as the ANSI Z136 standard in the United States and the EN207 standard of the EU CE certification. The main parameter test method of laser protective glasses in my country is GB30863-2014. Products that meet these standards are more guaranteed in quality and safety.