What Are The Best Masks For Glasses Wearers? | KOALAEYE OPTICAL

What Are The Best Masks For Glasses Wearers?

Are Polarised lenses mirrored? Leiendo What Are The Best Masks For Glasses Wearers? 5 minutos Siguiente How much should a good pair of glasses cost?

What can I do if the rimless glasses frame is broken?

It depends on the material of the frames. If it is a metal frame, the welding effect of 50 yuan is not worth looking forward to, because the high temperature will burn the welding point and the surrounding color. The electroplating will be destroyed, and it is difficult to accept the appearance. If the metal material is alloyed copper, it will quickly corrode and produce patina. If your frame is broken in a temple, you can fix it yourself with 502 glue or duct tape, but the look will definitely be affected. Or you can go to the optician shop to change the temple. But if all the temples are broken, it's impossible to repair.


The development of glasses

In 1451, Nicholas of Cusa of Germany invented a lens that was thinner in the middle and thicker at the end to help short-sighted people. In 1727, Edward Scarlett, an English optician, invented modern frames that could be worn over ears and noses. Benjamin Franklin, an American scientist, and philosopher invented bifocals, which divide the lenses into far and near parts. The two lenses are held together by a metal frame. Frame construction has improved over the centuries, and today frames have come in different kinds of styles and designs. Unbreakable lenses were invented in 1955, and in 1971 a new type of lens combining plastic and glass properties was invented.



Athletes wear non-prescription sunglasses.

Some people opt for non-prescription lenses for fashion reasons. Shatter-proof non-prescription glasses are popular among athletes. Cyclists wear glasses to protect their eyes from debris and to protect their eyes from the wind. Squash players may wear glasses to reduce glare on the squash court and to provide protection against ball collision or breaking up an opponent's racquet. Gun lovers can wear glasses to reduce glare in outdoor environments. Most non-prescription glasses do more than one thing, and safety is almost always a primary concern. These non-prescription sunglasses filter out harmful UV rays.


Promises and Warranties of Optical Stores

They have a quality guarantee. Under normal use, the glasses will be replaced with the same value free of charge within six months if there is any quality problem attributable to the product itself. If there is any incompatibility within one month, the lenses will be re-checked and replaced with the same quality lenses free of charge. If you are not satisfied with the style of the frame, you can replace the frame of the same value free of charge within one week.



The production of carbon fiber glasses is complicated.

Designing carbon fiber glasses was a slow and complicated process. These processes are not fast in material, force, or appearance. Resin is the key to the quality of carbon fiber. Adding resin to carbon fiber can change the material into composite material. Manufacturers of these composites want to use the least resin to hold the carbon fibers together.


What does the Drop Ball Test have to do with the eyewear industry?

FDA mandates that eyewear products must ensure their safety. Impact resistance is a basic norm for binding glasses and/or lenses in the United States. The FDA does say that a drop ball test must be performed on every glass lens for prescription use. The FDA-regulated eyewear products are common in the everyday lives of the public, and the FDA considers impact-resistant lenses to be an important part of the safe design of these devices. Today, safety lenses are rarely mentioned in our sales, but in the 1990s, when resin lenses first entered the Chinese market and glass lenses still dominated the market, safety lenses were a pretty important concept. At the time, the hardening technology has not been upgraded, and the resin lens is easy to wear out than the glass lens. The eyewear industry is relying on lightness, safety (anti-impact), comfort (anti-ultraviolet) step by step to achieve the market share of resin lenses from 1% to 100%.


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An unlimited discount is not reasonable.

5 discount, 3 discount, 1.5 discount, we can see that glasses category discount is lower and lower. But glasses are not consumable, like cell phones, appliances, or even less frequently than they are. Because, unlike consumables, it has an incompressible cost structure. Behind such discounts, there is sometimes the marketing strategy of raising the price of glasses first and then lowering the price.

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