can i get lenses for my own frames? | KOALAEYE OPTICAL

can i get lenses for my own frames?

Evolution of photochromic lenses

Thirty years after Corning invented color-changing glass lenses, another company has carried forward the color-changing glass lenses --Transitions Optical. In 1991, it became the first company to commercially manufacture resin color-changing lenses. Since its inception, the company has been a joint venture between PPG Industries (51%) and Essilor (49%). In April 2014, Essilor acquired a 51% stake in PPG. At present, the mainstream is resin photochromic lenses.


How to Wear Cat Eye Glasses?

Since the cat eye frame glasses are so popular, you may ask whether I can wear the cat eye glasses. Usually, cat eye glasses can suit a variety of face shapes. But faces with more angular or prominent features would look best in a round or oval shaped pair of cat eye glasses because these cat eye frame glasses will balance wide jawlines of square or triangle faces, while the rounded lens will soften sharp features.

However, the round face will look best in frames which are with bold and angular lines. These striking details will help to sharpen soft facial features and rounded jawlines. You can click here to know more knowledge of the face shape and how to choose the glasses frames.



The Types of Blue Light Glasses

Computer Glasses - Clear Lenses

First, we will show you the computer glasses which have clear lenses, These glasses are made to be used when working on your computer, smartphone or while watching TV. The best computer glasses can filter 5-30% of all blue light.

Night Driving Glasses - Yellow Lenses

When driving at night, the blue light glasses with yellow lenses would be suitable. These blue light lenses are good at removing more of the highest energy blue light, around 440 nm and they are also able to distinguish traffic lights when driving at night. These glasses can block around 65-70% of blue light.

Blue Light Glasses for Sleeping - Red Lenses

The blue light glasses for sleeping have red lenses. The best blue light glasses come with red lenses and they block 99.5%-99.9% of all blue light and a large amount of the green light spectrum, from 495-550 nm.

After knowing the different types of blue light glasses, we will show you how to perform the blue light glasses tests.


How To Choose Better Night Driving Glasses?

Choose and buy glasses to use a special night with anti - strong night driving lens. The demand is to block 80-90% of the strong lights and harmful lights, and at the same time to make the road more clearly. Choose glasses with thicker lenses, they are more durable and protect the eyes of drivers against irritation and accidental breakage. As common sunglasses and color-changing glasses are only suitable for daytime wear, wearing them at night will seriously affect the driver's vision.

Common light yellow night driving glasses can only block a small amount of light, and is not very suitable for night driving glasses standards. Therefore, in the choice of lenses of night driving glasses, we must do the selection and demonstration of the national authority of the formal institutions to test products, to achieve the desired effect in actual use. Don't buy products that are not up to standards from vendors. Such products not only do not block the lights but may affect the driver to see the road ahead, affecting the safety of the train operation.



Why are rimless glasses so expensive?

Rimless glasses are the design vantage point in the frame of glasses. The structure of rimless glasses requires many higher physical features (flexibility, surface texture, etc.) and machining accuracy than TR, PEI, and other materials. In order to ensure comfortable wear, the common materials are very exquisite. And for processing technology, the frame is the most difficult. It's not just grinding, it's a full polishing, and it's perforating. This is the technical demand and the most time-consuming.


About Prism Glasses

The refractive index of the same medium is different for different colors of light. Different colors of light travel at different speeds in the same medium. Because the same medium has a different refractive index for various monochromatic light, and the deflection angle of each monochromatic light is different when passing through a prism. Therefore, white light through a prism will separate the monochromatic light, known as dispersion. What is the prism effect of glasses? As long as there is a deviation between the visual channel of the eye and the optical center of the lens, it can produce a prism effect. Therefore, the severity of the prism effect can be used to measure whether the glasses with the correct prescription are processed correctly and reshaped correctly.


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INMIX Driving Glasses

Inmix has tried many functional innovations, like an ultralight frame that weighs only seven grams and can float on water, a blue lens that blocks radiation from computer and mobile phone screens, and an allergy nose pad. Inmix Glass is an attempt to distance itself from its competitors with a strong visual style. The performance of Inmix glasses is beyond its young brand positioning. The brand competitiveness of the old brand is not lost at all. Opening the affordable era of glasses, it truly realizes the ecological chain from factory to consumer, and gives consumers the most cost-effective high-quality glasses. Parity and quality make the sales volume double every year, and the sales volume in 2015 is more than the sum of the previous years.

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