How To Choose The Laser Safety Glasses That Suit Your Needs?

The following key factors need to be considered when choosing the laser safety glasses that suit your needs:

1. Determine the laser wavelength that needs protection

Different lasers emit different laser wavelengths, such as the common helium-neon laser wavelength of 632.8nm (red light) and the carbon dioxide laser wavelength of 10.6μm (far infrared light). You need to be clear about the laser wavelength range you are exposed to, because laser goggles have a specific wavelength protection range. For example, our laser protective glasses absorb a certain wavelength, and we need to determine the band that needs protection in order to better recommend suitable laser goggles for you. If you need to protect semiconductor lasers such as 808nm, 980n, you can choose our LP-YHP-2 laser safety glasses. If you need to protect three bands such as 755nm, 808nm, and 980nm, you can choose our LP-ADY laser safety glasses.

2. Determine the power of the laser device

It is crucial to understand the power of the laser device. High-power lasers are more harmful to the eyes, and you need to choose goggles with higher protection capabilities. For example, in the field of industrial laser cutting, the high-power lasers used may reach several kilowatts or even tens of thousands of watts, so goggles that can withstand the corresponding power density are needed to prevent serious damage to the eyes. In the field of laser welding, the power is very high (several kilowatts, tens of thousands of watts). It is recommended to choose OD8+ protective products, such as our laser welding helmets LP-YL8-H #1003 and LP-YL8-H #1005

3. Transmittance

Transmittance refers to the ratio of the luminous flux passing through the goggles to the incident luminous flux. A higher transmittance allows you to observe the work scene more clearly when wearing goggles, but this also requires sufficient protection. For example, for some laser marking work that requires precise operation, goggles with better transmittance can allow operators to better see the marking position. For the field of laser medical treatment and laser medical beauty, the transmittance of laser protective glasses must be high, so as to ensure that the operation and the position where the laser operation needs to be performed can be seen clearly. For example, our LP-ATD, LP-YHP-2 laser safety glasses are very popular in the laser medical and optical medical beauty industries. The transmittance of laser goggles mainly depends on the application scenario of the laser equipment. When performing laser handheld welding, goggles with lower transmittance are required, because the sparks generated during welding may be accompanied by dazzling white flashes. Using goggles with lower transmittance will avoid the damage and irritation of sparks and dazzling white flashes to the glasses.

4. Suitability and comfort of laser safety glasses

The weight of goggles should be moderate. Too heavy will bring a greater burden to the bridge of the nose and ears, and long-term wearing will easily cause discomfort. For example, for researchers who need to operate laser equipment in the laboratory for a long time, lightweight goggles are a better choice. In terms of size, make sure that the goggles can fit the face, neither too tight to cause oppression nor too loose to affect the protective effect. The right size can also prevent external lasers from entering the eyes through the gap.

5. Comply with relevant safety standards

Make sure that laser goggles meet relevant international or domestic safety standards, such as the Z136 standard of the American National Standards Institute (ANSI) and the CE standard of the European Union. These standards stipulate the minimum requirements for laser goggles in terms of protective performance, optical quality, etc. Goggles that meet the standards are more guaranteed in terms of quality and safety

In summary, to choose laser safety glasses that are suitable for you and meet your needs, you first need to determine the laser wavelength and equipment power that need to be protected, then determine the application scenario and light transmittance, and then consider the comfort of the laser goggles. The most important thing is that the selected laser goggles must meet the relevant safety standards, so as to ensure that the selected laser goggles are of quality and safety to ensure the safety of our glasses.