Why do we wear anti-blue glasses?
There are many types of anti-blue light glasses on the market, and it is not easy to buy a pair of products that truly protect the eyes from blue light. Why do we wear anti-blue glasses? What kind of anti-blue glasses are qualified? Is it 100% blue light protection? I will answer some questions one by one.
First of all, let's answer: Why do we wear anti-blue glasses?
You can see the following characteristics of the above spectrum
The spectrum is continuous
1) Contains ultraviolet light and infrared light
2) The strongest yellow and green light intensity
3) Low intensity of red and blue light
Now let’s take a look at the spectra of our commonly used mobile phones, computers, TVs and other electronic productsirst take a look at the spectrum of sunlight we spend outdoors
The above spectrum has the following characteristics
1) The spectrum has no continuity
2) Does not contain ultraviolet light and infrared light
3) The intensity of blue light at the wavelength of 455 MN is the strongest
4) Low intensity of red light and green light
Everyone can clearly see from the above two spectrum that whether blue light hurts the eyes depends on the intensity of the blue light. The blue light in the sun is balanced with the intensity of other colors, so it is not harmful to our eyes. The intensity of light emitted by electronic products is completely different from sunlight. Excessive blue light can cause damage to human eyes, but it is not that blue light is bad. When the intensity of blue light is balanced with other colors, it is the most comfortable state for human eyes. If the blue light energy is too low, it will have an adverse effect on the human eye for a long time. For some anti-blue lenses, the design focus is to balance the blue light intensity of electronic products with other colors. In other words: the best anti-blue lens is through this anti-blue lens, let us see the spectrum of electronic products, the largest close to the spectrum under the sun, instead of preventing all blue light.
The above has already answered the questions raised at the beginning.
