Can Blue Light Glasses Replace Blue Laser Safety Glasses?

Blue Light Laser Safety Glasses are specially designed to protect the eyes from blue laser hazards. Blue laser light is a high energy light that can cause eye damage and even blindness if proper protection is not taken. Blue light laser protection products are often used in industrial or medical environments where lasers are frequently used.

Blue Light Protection refers to products that block or reduce the blue light emitted by digital devices, such as glasses or screen filters. These products are designed to reduce eye strain, improve sleep and prevent potential eye damage from overexposure to blue light. Although both blue light protection and blue light laser protection are designed to protect the eyes, they serve different purposes, and blue light protective glasses cannot be used as a substitute for blue light laser protective glasses.

We need to understand the concept of blue light. In nature, sunlight (white light) is composed of red, orange, yellow, green, cyan, blue, and violet, with a wavelength range of roughly 400-700nm. Among them, the wavelength range of blue light is roughly between 400 and 500nm, so we call light in the wavelength range of 400 to 500nm "blue light".

Blue lasers are now more and more widely used in industrial processing applications, researchers pay more attention to it because of its superior performance. Non-ferrous materials, as common processing materials in the industry, have high reflectivity, but their absorption rate of blue laser with a wavelength of 450nm is very high. If this feature is effectively used, it can enhance and improve the efficiency of existing laser processing, such as copper and battery welding. But because of the characteristics of laser energy concentration, in the face of no matter what kind of band of laser, it is recommended to wear the corresponding wavelength of Blue Light Laser Safety Glasses, laser protection, blue laser is no exception, so in the industrial field and no "blue light" concept.

Studies have shown that under the same light flux, blue light with a wavelength of 415-455nm has greater retinal damage than blue light with a wavelength of 455-500nm. Among them, blue light with a wavelength of 415nm has greater retinal damage than blue light with a wavelength of 455-500nm, which may lead to myopia, cataract, and macular disease. Blue light with a wavelength of 415-455nm is easy to cause thin retinal pigment epithelium The atrophy of the cell, results in myopia. Relatively speaking, at the same luminous flux, and the same irradiation time, 455-500nm blue light damage is less. Secondly, the influence of blue light flux on human eyes will increase with the growth of time. With the popularization of science and technology, people can easily access a variety of blue light in daily work and life, such as fluorescent lamps, liquid crystal displays, mobile phone screens, etc.

Therefore, people who spend a lot of time in front of computers and various electronic screens are advised to wear anti-blue glasses in the studio. However, small amounts of blue light, especially in the wavelength range of 480-500nm, have a role in regulating biological rhythm, which is associated with sleep, mood, memory, etc., so a small amount of blue light absorption is beneficial to the human body.

There is a difference in Blue Light Glasses and Blue Laser Safety Glasses protective function, myopic glasses because of cost limitations and high visibility requirements, usually use blue light reflective film, or reflective film and blue light absorption lenses combined, and industrial Blue Laser Safety Glasses lenses are mostly used absorption protection, because even if the moment is laser irradiation or encounter sharp objects so that the mirror shallow scratch does not affect the protective effect; Second, the degree of protection is different, due to the limitation of the protective film protection effect and not all low blue light blue light are harmful, so the average barrier rate of blue light ordinary anti-blue glasses is 10-40% (and product technology, quality and other factors), the barrier rate is higher can reach more than 60%, but the lens color has obvious yellow, ordinary life will be slightly not Will, and the average barrier rate of industrial Blue Laser Safety Glasses to blue light should reach at least 99%, according to the size of the laser power will have a higher barrier rate, that is, OD=4-7.
 

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