Why do you need to wear safety goggles correctly?
Eye strain occurs when muscles are tired from strenuous exercise (from tension to concentration), similar to what happens to other muscles in the body from strenuous exercise or overuse. Eyestrain is the result of eye pain and fatigue, often accompanied by headaches. Eye strain has a lot to do with the quality of your glasses. If you wear cheap and inferior safety glasses for hours at work, you will feel uncomfortable. While your eyes won't be permanently damaged by fatigue, it can affect your productivity.
Types of Single Vision Lenses
Single vision lenses come in several different types including the 1.59 polycarbonate single vision, 1.57 mid-index single vision and polarized single vision.
1.59 polycarbonate single vision lenses are characterized by their durability and impact resistance. They often include an anti-scratch coating or anti-reflective coating. This lens is much lighter and thinner than a traditional plastic lens, and it blocks the sun’s harmful UV, offering maximum UV protection.
1.57 mid-index single vision lenses are thinner than regular plastic and moderately lighter and stronger. They come with an anti-scratch coating or anti-reflective coating. These lenses are an ideal option for people with relatively higher prescriptions. But they are thicker than the polycarbonate lenses.
Polarized single vision lenses are sunglasses that protect your eyes from light that bounces off smooth, highly reflective surfaces like asphalt, snow, and water. These lenses work by controlling certain light properties and limiting specific wavelengths. They boast a vertical filter that does not allow horizontal glare to pass through.
With the user as the core, the personalized service of glasses is provided.
Users can actively participate in the innovation of the product. They pay attention to user needs. Consumption is the basis of production, and brand is formed on the basis of perfect experience and user sharing. Modern enterprises focus on the market on users, and users' experiences are the starting point for product development. No matter what kind of mobile terminal, it is highly customized. In smartphones, in particular, each phone number represents a specific person. Mobile applications can provide more accurate personalized services for different persons.
How To Choose Better Night Driving Glasses?
Driving at night has a high accident rate because of poor visibility, blinding headlights, and fatigue. Now the market exists a few main glasses: sunglasses polarizing lenses, Glasses that use or mimic the first generation of patented technology. So how do you compare the options between driving and wearing glasses?
Night driving lens is relatively special compared with daily driving lens, not only to prevent strong light and see the road more clearly. According to the national motor vehicle driver special glasses standards, QBT 2659-2004 daily light transmittance should be more than 8%, night light transmittance should be more than 75%. Be sure to consult customer service. Ask about the situation. Note that a pair of polarized sunglasses are not suitable for use at night, and the light transmittance must reach the national safety standards.
The anti-reflection principle of the anti-reflection film
Anti-reflection Coating, known as anti-reflection membrane, is called anti-reflection coating in English, or AR membrane for short. The basis of anti-reflection is the wave and interference of light. The principle is: Two light waves with the same amplitude and the same wavelength are superimposed, then the light wave amplitude is enhanced. The two wavelengths and amplitudes are the same, but the superposition of wavelengths with different wave paths (similar to dislocation) cancels each other out. Therefore, the anti-reflection film plated on the surface of the lens uses this principle to make the reflected light generated by the front and rear surfaces of the film layer interfere with each other, thus canceling each other and achieving the effect of reducing reflection.
When should I use blue light glasses?
Most of us spend a few hours a day in front of a screen. Because so many people work on a computer all day, many people wear blue glasses in the office. At the same time, many American high school and college students spend hours a day on their computers and could benefit from blue light glasses.
Cheap frames can cause skin irritation.
Some cheap frames may look like more expensive frames. But more often than not, they are made of low-level materials that can cause skin irritation over time. Cheap plastic frames can be bleached by ultraviolet light, leaving the surface rough after months of wear and tear. Cheap metal frames often contain nickel alloy, which can cause skin irritation.
