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Black glasses in the past and today

October 13th, 2009

Black glasses are among the most popular and widely choosen. When you wander in retail eyeglasses shops or browse on the websites, you will find that black eyewear is the majority.

During the initial stage of eyeglasses development, there were no colorful eyeglasses, only black glasses were available. Though eyeglasses are provided in all basic colors and even compound colors today, black eyewear was the single choice in those days. The small market may be one reason. In those days, few people bought eyeglasses. Black glasses were generally formal and universal. Both male and female can accept black eyewear. Another reason may be the materials. The colorful materials of both frames and lens coatings that are widely used today are mostly artificially composed. These colorful artificial materials require modern technologies and skills. However, these technologies were not available in those early days of eyeglasses. Black glasses only needed simple techniques so that it was not surprising that black eyewear played a major role.

Currently, black glasses are also competitive. People can easily find eyeglasses in all colors, such as green, blue, red, creamy etc… Some of them are also combined to create special vision effects. These colorful eyeglasses do have seized certain proportion of the market, because they flatter the particular needs of a certain group of people. However, black glasses still remain as the major role. Black eyewear can meet the most tastes of ordinary people. And people need black glasses under most formal circumstances. Black eyewear will hardly bring you unpleasant appearance. Nowadays, nearly all of the eyeglasses brands provide black glasses.

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Zeiss lens types and coatings

October 12th, 2009

Zeiss lens is produced by Carl Zeiss Vision Inc., one of the companies under Carl Zeiss International. Carl Zeiss is a German manufacturer of optical systems, industrial measurements and medical devices. Carl Zeiss Vision is a worldwide leader in developing lens designs, coatings and materials. The company continually creates Zeiss lenses that bring better vision in all aspects. Carl Zeiss lens features the forefront of innovative lens designs and technologies.

Zeiss lenses have many types, such as GT2TM and Gradal Brevity. GT2TM Zeiss lens has been carefully engineered around the vision and physiological requirements of the wearer. These Zeiss lens uses the proven total aberration control of Zeiss Optical Optimization & Management. GT2TM Zeiss lenses have many features. They are distortion-free above the 180 degree line for satisfying distance and peripheral vision. Available materials in this kind of Zeiss lens include 1.67 High index, Transitions, 1.59 polycarbonate, 1.5 Hard Resin, all of which have different colors. Gradal Zeiss lens has a fitting height as low as 16mm, which broadens the selection of frame styles.  Gradal Zeiss lenses guarantee horizontal symmetry and provide an ultra-short style. This type of Carl Zeiss lens also features a full optical aspheric surface, which reduces distortions and astigmatism.

Zeiss lens also uses several coatings and is the industry leader in performance coating technology. Carl Zeiss lens applies self-invented anti-reflective coating. This coating on Carl Zeiss lens help diminish glares and get rid of reflection thus brings a better vision. Other coatings used by Zeiss lens include scratch-resistant coating, super-hydrophobic topcoats, which makes lenses more smudge resistant and easier to clean. Zeiss lens guarantees its coatings never crack, peel or flake.

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Plastic eyeglasses, the big invention in 20th century.

October 11th, 2009

Some professionals in optical industry say that the plastic eyeglasses were a big invention in the 20th century. Today the majority of lenses used by almost 70% of the country’s population are made of plastic. Especially with the rise of aging population who will need plastic reading glasses, this further boost the total consumption of plastic eyeglasses.

Eyeglasses were mostly made of glass before the invention of plastic eyeglasses. Glass lenses are heavy and easily breakable, hence are not safe for wearers, especially for kids. Innovators in this area then started to think an alternate which would be lightweight, safe and shatter-free. People thought of the plastics. In 1962, the Pittsburg Plate Glass Company finally discovered and developed a substitute of glass lenses. This was the beginning of resin plastic eyeglasses. Later more types of even stronger and lighter plastic eyeglasses.

There are a handful of advantages of plastic eyeglasses. Lightweight, safety, more durability and low cost are the four basic benefits of plastic eyeglasses. Lightweight makes the wearing of plastic eyeglasses more at ease and comfort, especially for aged people, the frequent removing of plastic reading glasses makes possible without causing breakage. In addition, plastic eyeglasses are easy to accept tints and different coatings as add-ons. These add-ons protect our eyes.

Please note that plastics are also used in molding eyeglasses frames. Plastic eyeglasses in plastic frames cover the widest varieties of styles and fashions. For example, now there is no need for middle-aged people to feel ashamed of wearing readers as the stylish designer plastic reading glasses are accessible easily. Plastic eyeglasses really have changed the world of fashion and our lives.

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How to maintain and keep new glasses?

October 11th, 2009

If you have just purchased a pair of new eyeglasses, you need pay more attention to it. For the maintenance of new eyeglasses is not an easy job. Most glass wearers lack some basic knowledge of glasses keeping, let alone those who have just buy new eye glasses. Some people think it is no need to care too much about new glasses, but the fact is the maintenance of new glasses is essential, for it can decide their longevity.

Following are some basic tips that can help people to keep their new eyeglasses.

When wearing or taking off new glasses, it is better to use two hands. By two hands, the frames of glasses will not deformed, for by a single hand may make the new eyeglasses too loose to wear. And this can also prolong the life of glasses.

When the lenses of new glasses are tinted or coated, it is better to clean them by glasses clean cloth other and never use tissue paper. Because, the surfaces of lenses are to easily be hurt. Paper is made from fiber, and fiber may scratch lenses. This will to large extent damage new glasses.

Do not wear new glasses when doing sports. When people are doing strenuous exercise, glasses might be out of balance and move irregularly. This might cause the new eyeglasses to fall down or be crushed.

Do not put new glasses in any place where the temperature is too high. High temperature may cause the lenses of new eye glasses out of shape or even to be cracked. All the new glasses should be stored or worn at normal temperature.

In addition to what have been mentioned above, there are still many other pints to be noticed in keeping new eye glasses. Anyway, these mentioned points can benefit a lot for glasses wearers in lengthening the life of new eye glasses.

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Polarized clip on shades

October 11th, 2009

Clip on shades are special sunglasses that without temples. But most of the lenses technologies are applied to them. One of the most common technologies is polarization. So that polarized clip on is created. Tinted lenses reduce the amount of light and darken your vision, but do not solve the glare problem. Polarized clip on shades are the proper solution. Polarized clip on can block reflection of light on smooth surfaces, especially the shining ones. More accurately, polarized clip on shades block 99% horizontal glare and 100% of harmful UV rays. As a result, you will rarely suffer from blurring and vision discomfort as well as eye fatigue.

The lenses of polarized clip on shades are usually made of polycarbonate since clip ons should not impose obvious height to the regular glasses. Due to its lightness, this polarized clip on reduces pressure on the wear’s face and stays comfortably in place. Polarized polycarbonate clip on shades are 10 times more resistant than other glasses so that they are more suitable for sports. Furthermore, polycarbonate polarized clip on reduces the intensity of sunlight to more comfortable level, in order to ease eyestrain, fatigue and headache.

Polarized clip on shades come in various colors. Yellow polarized clip on provides excellent depth perception and contrast in overcast days. This type also gives a sensation of heightened visual acuity in low light conditions. Copper polarized clip on is made of very contrast lenses that are soothing to eyes. It absorbs blue light. The most color-neutral ones are grey clip on shades. They transmit colors evenly and make you comfort in bright and medium light. Brown clip on shades are also gaining popularity. They preserve depth perception for activities such as driving, fishing and golf.

Related pages – Polarized Sunglasses, Polarized Bifocal Sunglasses, Clip on Sunglasses

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How should you do if your plastic glasses get scratched?

October 9th, 2009

Plastic glasses are gaining popularity for over 50 years. Since its birth, plastic eyeglass was keeping on gaining share in the eyewear market. There are a lot of advantages of plastic glasses such as lightweight and inexpensiveness, one disadvantage is that plastic glasses can easily get scratched.

When your plastic glasses get scratched, the lenses will get blurry, hence impact your vision. It depends on how serious the scratches on your plastic glasses are. If it is really severe, you need to send it back to the optician for replacement lenses for your plastic glasses. If the scratches are minor, here are some tips to remove the lines on your plastic glasses.

First, wash and clean your plastic eyeglass using warm soapy water, rinse it ad wipe it dry using glasses cloth. After rinsing, most of the dirt will be washed away, and the visible remainder is just the scratches.

Second, further clean the lenses of plastic eyeglass by spraying wood-cleaning liquid. This liquid not only cleans the lenses of plastic eyeglass, but also polishes the lenses.

Finally, spread a bit of petroleum jelly to the scratch lines. Once again wipe it off using micro-fiber cloth. The jelly will penetrate to the lines, making the lines on the plastic eyeglass much less visible.

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