The style of sunglasses on the market can be varied and varied, and the prices are different. So what is the difference between dozens of sunglasses and hundreds of thousands?

The quality of sunglasses is mainly to see the quality of the sunglasses and the advantages and disadvantages of the frame. Today, Xiaobian will come to tell you how to buy high quality sunglasses, and the difference between expensive and good?

What are the differences between tens of pieces and hundreds of pieces of sunglasses?

Identify the quality of sunglasses 

When buying sunglasses, it is important to check whether it has UV protection, but also pay attention to distinguish the inherent quality of the lens.

The pros and cons of the lens is a decisive factor in measuring the quality of a pair of glasses. Therefore, consumers must be careful when purchasing lenses. The lens is scratch-resistant, but relatively speaking, its weight is heavier than that of other materials, and it is also easy to break. Polymer resin lens: This lens component is lighter than glass lens, impact resistant, not easy to break, but the hardness is low, and it is easy to have scratches.

To measure the quality of a pair of sunglass lenses, in addition to the material, it depends on the refractive index of the lens. The higher the refractive index, the thinner the lens and the higher the price.

Such as the optical characteristics of the lens: sunglasses are flat mirrors, can not have diopter, and should not have optical discriminating methods that affect vision, the simple identification method is to put sunglasses in front of the eyes, through the lens to observe distant targets, such as window frames Or the door frame, etc., then move the glasses up and down, what you are looking at should not have swing and wave deformation.

Most of SOJOS’s sunglasses are polarized lenses. What are polarized lenses?

Invented by Dr. Jane Lan (born in 1909 in Connecticut, USA) Dr. Edwin Land was fascinated by optics for the first commercially available polarized when he was young. In 1937, Polaroid Polaroid was founded. Polaroid is the creator and one of the leaders in polarized lens technology. As the inventor of the polarization, Polaroid’s research center in Europe has introduced a new generation of polarized lenses to the market through continuous innovation and development. Through a series of rigorous tests, it ensures high standards and optical stability of polarized lenses.

In order to enable most consumers to experience the best valuable sunglasses, SOJOS sunglasses use the best craftsmanship and set the lowest price.

Most poor quality sunglasses generally use fake lenses.

If you wear it for a long time, the glasses will be sore and uncomfortable, and even some will cause vision damage. When buying sunglasses, in order to distinguish the quality of the lens, you can align the sunglasses with the light, check whether the lens surface of the sunglasses is smooth, no bumps, no wear marks and bubbles.

Usually a good frame is comfortable to wear, does not affect the skin, and will hold up well over time. The inferior frame is the opposite. Regarding the metal sunglasses frame, we should pay attention to whether there is a crack in the solder joint, whether it is strong or not; can use the nail to rub it to see if there are any scratches on the paint surface; for the sunglasses frame of the plate material, carefully observe whether its surface is Plastic particles, whether there are scratches, whether the rough frame is distorted, etc.

If you don’t believe, please visit our website to see www.sojosvision.com

Getting your first corrective lenses is a life-changing event. Whether you are young or old, it will take some getting used to. However, there are now some things you can do that you’ve never done before, and should go experience. Once you receive your first corrective lenses, these are four things you can do.

Go See a Movie

There is nothing quite like going to see a movie on the big screen (or even a stage production) once you have gotten your first corrective lenses. You will probably be amazed by how much clearer a movie is on the big screen. You will be able to see more detail than you might have thought possible. It can make for a magical, amazing experience.

Get Your Driver’s License

If you are young and just got your eyes tested as part of driver’s ed, you may have discovered for the first time that you really need corrective lenses. You may also be older and suddenly unable to pass the vision test mandated by your state in order to issue a driver’s license. Once you know you need glasses to drive, go into an eye doctor for an exam and get a prescription for glasses. Once you’ve done that, you can go to the DMV and pass the vision test in order to get your driver’s license.

Get Sunglasses, Contacts or Other Specialty Glasses

Once you have your first pair of corrective lenses, you need to get supplementary ones as well. For example, if you play sports, you will either need contacts or glasses approved for sport use. Sunglasses are of particular importance because they protect your eyes from damage caused by UV rays. They should certainly be worn if there is snow on the ground due to the bright reflective nature of it.

Consider LASIK

If your vision is poor and you don’t want to deal with glasses, LASIK surgery is another option you might begin to pursue. Lasik surgery uses lasers to reshape the cornea and improve vision, like Cornea Consultants of Nashville practice. There are some criteria to qualify for this type of surgery. For example, you must be over 18 and not have glaucoma or cataracts. If this surgery is of interest to you so you can fix your eyes as opposed to continuously needing glasses, you can talk to your eye doctor.

Getting glasses can be a lot of fun, and there are experiences you can now have for the first time from an entirely different perspective. Take care of your health and have some fun. Corrective lenses can truly open up your eyes to the possibilities around you.

They say that necessity is the mother of invention. Humans have learned to adapt because we needed something at some point. To address that lack of some “thing”, mankind has drawn its inherent powers of the mind to create something that is primarily useful to all.

While some would contest that not all inventions are created equal – with some arguing that technology has its downside – we certainly cannot deny the advantages and benefits of what innovations man has come up with.

At times, even the most discordant settings can produce helpful aids. Not to condone war or strife, but certain technologies we enjoy today were borne out of the need to cope with matters of armed conflict.

Here are some inventions that sprouted from the military bed.

1. The Internet

This list would not be complete if it did not include one of mankind’s greatest inventions – the internet.

With the need to enhance point-to-point communication, the digital communication system had to be born. From the United States Department of Defense’s efforts came ARPANET (Advanced Research Projects Agency Network). This provided the technical foundation of the internet and has since taken on a life of its own.

Now, the internet and all its other permutations have snaked their way into our daily lives. They have made information more accessible, providing a technology superhighway that connects people in the most amazing ways.

2. Global Positioning System (GPS)

Where would people be without the GPS leading the way?

Although an exaggeration (or is it?), this radionavigation system has pierced into the civilian consciousness and has since then changed lives forever. It might be melodramatic to say so, but it has come a long way from when it was invented in the ‘70s.

Conceived primarily for military use, GPS was finally made available for the common people to use in the ‘80s. Since then, it has provided crucial positioning capabilities to military, civil, and commercial entities.

Today, widespread use of navigation systems has made life more convenient. From critical search and rescue missions used by advanced military vehicles, to searching for that one vacation spot you want to enjoy, GPS has certainly claimed its position in history.

3. Off-road Vehicles

One of the earliest accounts for off-road vehicle use was after the Russian Revolution of 1917. This was when Adolphe Kégresse, a French military engineer who invented the half track and dual-clutch transmission, went back to his native land and worked for Citroën between the years 1921 and 1937 and used his system for off-road and military vehicles.

Off-road vehicles of today are miles and miles apart from that historical conversion. From military 4×4 vehicles to the preferred transport of adventurous junkies, these automobiles have developed into sophisticated means of transport. They have various cross-terrain capabilities as well as other features that make them valuable, and not only in the military setting.

4. Duct Tape

Thanks to a mother’s thoughtfulness and love, the “duck tape” — as it was originally called because (1) It was waterproof, and (2) It was made of cotton duck fabric — was invented.

With her sons serving in the military during World War II, Vesta Stoudt, a woman who was working packing and inspecting cartridges used to launch rifle grenades, had a lightbulb moment. Noticing the need for a strong, waterproof tape, she sent her idea through a letter to then President Franklin Delano Roosevelt. Her letter was written with a purpose and a strong desire to save the lives of not only her sons, but the sons of so many others.

Realizing the importance of her suggestion, the duct tape was commissioned to be produced by Johnson & Johnson.

From the trenches of war to our daily domestic battles, the duct tape has stuck and has since been part of our lives.

5. Aviator Sunglasses

This may be the most “trivial” in the list, but we cannot negate the importance of this stylish pair of shades.

These sunglasses were originally meant to shade the eyes of air force pilots who reported to have vision problems at high altitudes because of the sun’s glare. A sunglasses manufacturer then made a new kind of glasses with green lenses. This anti-glare technology was made available to the public in 1937 and has become a trend with irrefutable staying power.

Today, this stylish pair of sunnies not only has functional purposes but is part of the fashionable set’s ensemble. From the air strips to the fashion runways, aviators are here to stay.

All’s well that ends well.

While these innovations had their genesis in the pools of military warfare, we cannot deny the fact that their usefulness has long surpassed their original purpose. These remarkable breakthroughs in our history may have stemmed from the need to combat hostile forces, but thankfully, they have found a way to provide a better use for the greater good.

It will still always be a matter of choice as to how these things are made. In the end, it still depends on the human capacity to think and weigh the consequences of how these inventions will impact society.