Why are some laser safety glasses very cheap and some very expensive?

The main reasons for the difference in the price of laser safety glasses are as follows:

1. Wavelength protection range

Expensive laser safety glasses : usually can provide a wider and more accurate wavelength protection range. For example, in scientific research and industrial laser application 3scenarios, some high-end protective glasses can protect lasers of multiple different wavelengths, such as two or more specific wavelengths of lasers in the ultraviolet band (such as 193nm excimer laser) and infrared band (such as 1064nm Nd:YAG laser) at the same time. Our laser protective glasses LP-YHP-2 can protect both ultraviolet lasers and infrared 1064nm lasers

Cheap laser protective glasses: The wavelength range of their protection may be narrow. For example, some cheaper products may only be able to protect one or two common wavelengths of lasers, such as mainly protecting 532nm green lasers, and the protection ability for other wavelengths of lasers may be very limited or almost non-existent. Our laser protective glasses LP-GTY can protect both 532nm green laser and 1064nm fiber laser. We also have red laser protective glasses LP-RHP, dye laser protective glasses LP-DHP, carbon dioxide laser protective glasses LP-CHP, etc.

2. Laser energy attenuation degree

Expensive laser safety glasses: can attenuate high-energy lasers more effectively. In the use scenarios of high-power laser equipment, such as laser cutting, laser welding and other industrial operations with working powers of kilowatts or even tens of thousands of watts, high-quality protective glasses can attenuate high-intensity laser energy to a safe level to protect the user's eyes from harm. For example, LaserPair laser safety glasses LP-YHP-2 can reach a protection level of OD7+, that is, attenuate the laser energy to one ten-millionth of the original, and the protection level of LP-ADY-3 laser safety glasses reaches OD8+, that is, attenuate the laser energy to one hundred millionth of the original.

Cheap laser protective glasses: may not provide sufficient attenuation when facing high-energy lasers. When encountering high-energy lasers that exceed their designed protection capabilities, these glasses may be insufficiently protected.

3. Protection stability

Expensive laser safety glasses: have better protection stability. This means that they can provide continuous and stable protection under long-term use or different environmental conditions. Even if there are scratches on the surface of the laser protective glasses, it will not affect the protective effect. Cheap laser protective glasses: The protective performance may decrease with the change of time, environment and other factors.

4. Anti-reflection and anti-glare ability

Expensive laser protective glasses: often have excellent anti-reflection and anti-glare performance. In a complex laser working environment, in addition to the direct light of the laser itself, there will also be reflected light and glare, which can also cause damage to the eyes. Cheap laser protective glasses: The anti-reflection and anti-glare capabilities are usually weak. This may cause the user to be disturbed by reflected lasers and glare during work, affecting the visual effect and increasing the risk of eye damage.

5. Technology and R&D

High-end technology application: Some expensive laser protective glasses use advanced technologies, such as high-performance laser absorption materials, which can more effectively attenuate laser energy and provide more accurate wavelength protection

Ordinary technology products: Laser protective glasses with low technical content may only use basic protective materials and conventional manufacturing processes, with relatively limited protection effects and performance, and the price will also be low.

6. Material quality

High-quality materials: High-quality laser safety glasses usually use high-quality lens materials, such as high-purity polycarbonate, special optical glass, etc. These materials have better optical properties, higher impact resistance and wear resistance, and can ensure the durability and stability of the protective effect, but the cost is relatively high. 1.

Ordinary materials: Lenses made of ordinary materials may perform poorly in terms of optical properties, impact resistance and wear resistance, and the protective effect and service life will also be affected, but the price is relatively cheap.

7. Certification and standards

Strict certification: Expensive laser protective glasses usually pass a number of international and domestic authoritative certifications, such as the EU EN207 standard, the US ANSI Z-136.1 standard, and China's GB30863 standard. The acquisition of these certifications requires companies to invest a lot of energy and cost in production and quality control, which leads to an increase in product prices.

No certification or a small amount of certification: Laser protective glasses that have not passed relevant certifications or have only passed a small amount of non-authoritative certifications have relatively low production and quality control requirements and low prices, but the quality and protective effect of such products may not be effectively guaranteed.

8. Brand effect

Laservision, Thorlabs, Yamamoto, LaserPair, etc. are all good brands of laser safety glasses. They have a long brand history, good reputation and high market visibility. They have invested heavily in R&D, production, quality control, after-sales service, etc., and have high brand value, so their product prices are relatively high.