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.
Glasses processed with acetate sheets become sheet frames. The plate frame is not easy to burn, the specific gravity is small, and the base arc is not irradiated by ultraviolet rays to change color. In addition, it has high hardness, good gloss, and durability, but it is not easy to bake and the temperature is 115-130 degrees. The style is more beautiful, and it is not easy to deform after wearing. The current market is that the plate frame combines the thickness of the plate and the metal texture, and combines different types of lenses to create fashion and personality. There are not only retro-style frames, but also popular frames, combining a variety of elements to create classic glasses frames. Its workmanship has undergone complex processes such as turning, grinding, and polishing, so it is relatively high-end.
What Is Polycarbonate Lens?
Polycarbonate was developed in the 1970s for aerospace applications and is currently used for the helmet visors of astronauts and for space shuttle windscreens. Polycarbonate lenses were introduced in the early 1980s in response to a demand for lightweight, impact-resistance lenses. Since then, polycarbonate has become standard for safety glasses, sports goggles, and children’s eyewear.
Polycarbonate glasses are thinner and lighter than regular plastic lenses. They provide 100% UV protection and are up to 10 times more impact-resistance than plastic or glasses lenses. Polycarbonate glasses also offer clearer and more comfortable vision if an anti-reflective coating is applied to the lenses, which can eliminate distracting lens reflections that interfere with vision, particularly when driving at night or in other low-light conditions when glare sources are present.
However, polycarbonate lens is a naturally soft material, making it more subject to scratching without adequate protection with a scratching-resistant coating. Polycarbonate glasses have high dispersion due to its low Abbe value of 30, causing chromatic aberrations.
How to Choose Glasses for Square Face?
Cat-eye glasses: cat-eye glasses are currently a very popular fashion trend. The upswept browlines provide curves and movement that are suited for any face shape. So, if you have a square face, you can try cat-eye glasses.
Oval glasses: oval glasses can soften your strong angles and balance your face and minimize your strong features. So, if you have a square face, you can try the oval glasses.
How to choose the best glasses for square faces? After reading this post, you may have some ideas. If you want to choose sunglasses for square faces, you can also follow the above suggestions. If you want to choose a new pair of glasses or sunglasses, Koalaeye glasses are recommended, which are stylish and at a cheap price.
Ray-ban Driving Glasses
Ray-Ban sunglasses, an international brand, were created in the 1930s, especially for the US Air Force, to block the fierce light at high altitude, with a very good UV protection function. Through the precise manufacturing and polishing process, Ray-Ban lenses are free of optical deviation and will not cause eye strain, headache or fatigue after wearing.
Can You Wear Blue Light Glasses All Day?
Can I wear blue light glasses all the time? You may also have the query. To answer this question, you need to know one thing that the blue light isn’t inherently bad for you but an excess of blue light will lead to some negative effects.
The natural sources of blue light from the outdoors and from sunlight is good for you. In addition, since the HEV wavelengths is important to our moods and sleep rhythms, blue light can be used to treat seasonal effective disorder and other mental health issues.
The blue light glasses is used to guard against artificial source of blue light that deliver excessive amounts of this wavelength to your retinas. So, if you need to stay daytime hours under artificial light or working at a computer, you had better wear your blue light blocking glasses during the day.
So, is it bad to wear blue light glasses all day? The answer is negative.
Can lens thickness affect eyeglasses definition?
The lens thickness of myopic glasses will not affect definition, so you can choose the glasses with appropriate degrees according to your own situation. It is recommended to choose the lens with a membrane, which can increase the transmittance and can play the effect of anti-ultraviolet and waterproof functions. The thickness of the lens is related to the refractive index of the material used in the lens. The higher the refractive index of the lens, the thinner it is. The so-called ultra-thin lens is the lens with a high refractive index. From the side view of the lens, there will be a fuzzy color phenomenon. Because the nearsighted lens is a concave lens, and the edge is similar to a prism, which can produce a prism effect. In addition, when you wear glasses, try to choose a smaller frame, so you can avoid the prism effect on the edge of the lens.