Lenses was also known as "photographic lens." Because silver halide chemicals added to the lens, so that the original transparent Tiffany and Co Necklace Jewelry Outlet Store colorless lenses, glare met, it will become colored lenses, do protection, it is suitable for indoor and outdoor use.
Lenses containing micro-crystals of silver halide optical glass production, according to the light color interaction becomes reversible reaction principle, can quickly darken in sunlight and ultraviolet radiation is completely absorbed ultraviolet light, visible light neutral absorption; return to the dark, can quickly restore colorless and transparent, Lenses photochromic properties with permanent reversible, Due to the addition of silver halide and copper oxide have been integrated with optical glass, so the color glasses can repeatedly change color, long-term use, both to protect the eyes from glare stimulation, but Tiffany and Co Outlet also play a role in vision correction.
Lenses what effect? It's mainly used for open-air field, snow, indoor strong light source in the workplace, to prevent sunlight, ultraviolet light, dazzling glow eye damage.
In plain words, is under strong light, the inside of the silver halide light shines again changed into black silver particles.
Which brand of photochromic lenses is better?
This is not much difference, in general Cheap Mac Cosmetics Makeup wholesale Outlet can be a big brand of photochromic lenses is mainly a more mature technology, produced by the more powerful UV lenses, such as Transitions photochromic lenses, it is possible to block 100% of harmful sun long-wave ultraviolet A and ultraviolet B, color effects and color adjustment time is also more reasonable. This precision and meticulous commodity spectacle is best not to be careless cheaper, or if what constitutes harm to the eyes can not make up.
With the demands of modern life, the role of colored glasses is not just the role of eye protection, it is art. A suitable colored Fake Oakleys Frogskins Sunglasses Cheap for Sale glasses, accompanied by the appropriate clothing that can bring out a person of extraordinary temperament.
As people increasingly popular Cheap Mac Cosmetics Makeup wholesale Outlet sunglasses, it is fashionable place in people's lives has no doubt, whether it is noble, elegant, solemn, classical, also, or insolent Variety breath, can release its fashion charm. Travel, party, go out on the road, in addition to practical sunglasses outside, make you look full of grace. And more people are feeling very stylish collection it. In recent years, sunglasses have become a fashion collections were more concerned Friends of Tibet. They said: "sunglasses collection is collection of fashion charm." So, what kind of sunglasses by the Friends of Tibet welcome that?
In recent years, attention tone from the start, orange, red, yellow to violet color became the main mirror, so sunglasses to show off a bit harsh. This year, these colorful lens is still loved by the people. Meanwhile, some in neutral colors such as light brown, blue-gray, coffee or cool colors dominated sunglasses gradually become the new darling of the market, especially brown and amber, due to filter blue light and glare, reduced contrast and make the eyes bright feel comfortable. At the same time, these Fake Oakleys Frogskins Sunglasses Cheap for Sale colors can make the wearer's eyes are more profound, exudes a strange spell, Friends of Tibet has become the preferred color.
Pay attention to style has been conducting exploration eyewear experts always two aspects --- more Japanese smaller and smaller. In terms of style sunglasses this year, this feature also increasingly prominent. The kind of long, narrow shape of tiny sunglasses style was gentle on delicate, still is a favorite of white-collar Friends of Tibet. But the wrapping, with sporty sunglasses are more imposing, the volume is greater. Two kinds of glasses in the leading position, fight with their admirers.
Select the frame type frameless style, the lens angle, lines and details have a wider freedom of choice. No matter what style of frame, they can not be ignored in the face of docile and wear comfortable, so that the sunglasses both individuality and humanity. In the lines, the complex is designed to be the metal frame of the mainstream. The frame intertwined, dazzling, such as a dragon meandering along the frame black sunglasses is the love of countless movie stars; there specifically for bald custom sunglasses, from the nose to the back of the head wear, completely subvert the traditional Tiffany and Co Necklace Jewelry Outlet Store style glasses .
The most important thing with Fake Oakleys Frogskins Sunglasses Cheap for Sale glasses comfortable wearing comfort reasons affecting nothing more than frames and lenses, tells the story of how the previous period we choose for their own frames, and now we have to share with spherical and aspherical lens resin lens how we should choice.
Spherical lens and aspherical lens how do we choose
One: What is a spherical mirror
Not only spherical lenses thick lenses, and look at things through a distorted lens periphery, deformation phenomenon, known as aberrations. Through observation of spherical lens wearers, and can obviously find their facial contour deformation phenomena. Spherical lens has excellent impact performance, safety and durability. Spherical lenses for eyes degrees generally below -400 degrees, if the higher the degree, spherical mirror lenses will be thicker, the oppression of the nose becomes large. This is also a drawback of the spherical lens compared with aspherical lens.
Two: What is non-spherical mirror
Strictly speaking, any refractive surface is not spherical lenses are aspheric, aspheric lens can be a progressive spherical mirror development in the past using a spherical mirror design, the aberration and distortion increases, there will be the impact is unclear phenomenon, vision distortion, narrow field of vision and so on. Rather than spherical mirror light, thin, these advantages flat correction effects, distorted vision to solve the problem. Therefore, a high degree of myopia is more suitable to wear aspheric instant you a high degree of wear Tiffany and Co Necklace Jewelry Outlet Store aspheric does not make the nose feel very oppressive.
Three: for the crowd aspherical lens wearers
1, the first people who wear glasses;
2, contact lenses and glasses alternately who wear;
3, a high number of short-sighted people;
4, a high number of people astigmatism;
5, the image of relatively high demand for people;
6, the field of view of the edge of those high demands, such as a driver;
7, for those who require high natural vision, such as drawings designer;
8, prolonged use of the eyes of those high-intensity, such as computer operators;
Four: for spherical mirror crowd
1, the eyes are particularly sensitive, including IPD, high pupil sensitive populations
2, there is strabismus, prism effect aspherical lens can not be used strabismus
3, the proportion of demanding persons, such as painter
Five: aspheric strengths
A clearer: It also has perfect visual performance via a unique aspherical lens coating process, showing more clearly, quiet and visual effects.
2, more relaxed: After almost feel aspherical lens wear than it is there, it is to lose weight for your eyes and enjoy it brings your casual.
3, more natural: aspheric design, more natural, less visual distortion, depending on the material more realistic.
Now spherical lenses aspheric lenses have been gradually replaced, but the Cheap Mac Cosmetics Makeup wholesale Outlet glasses do not blindly follow the trend, to be chosen according to their own situation for their own lenses.
The so-called glasses lens surface coating is applied in multi-layer antireflection coating to reduce specular reflection, increase transparency, ensure visual clarity, increase in beauty, and reduce red, ultraviolet damage to the eyes.
Two: the benefits of coated glasses
This anti-reflection film is actually a multilayer film. We all know that no matter resin lenses or glass lenses transmittance at around 91%, there will be two surfaces of the lens part of the light is reflected back. Reflected light transmittance of the lens can reduce the interference and the like are formed in the retina to affect the imaging quality and affect the wearer's appearance. However, the use of optical thin film coated lenses and vacuum technology, plated on a certain thickness of a single layer or multi-layer optical film, so that the Cheap Mac Cosmetics Makeup wholesale Outlet lens to get some new, originally did not have a good performance in order to improve the ability of the lens to reflect light, play enhance or reduce the light transmitted through the lens effect of the light transmittance to 98%. This will be more greatly improve imaging quality of the lens, and ultimately make the wearer the best fit results.
Three: coated lenses routine maintenance
1, prohibited the use of toilet paper, clothes clean, you must use a dedicated clean paper or cloth moistened with alcohol to wipe solution or alternative.
2, careful not to wipe in a circular motion, wipe in one direction.
3, the lens away from acid and alkaline substances
4, try not to wear glasses when cooking to prevent grease table attached to the lens
Three: test lens packaging In addition, you also can ask the seller to provide the lens original packaging (except custom piece), there are details of your Fake Oakleys Frogskins Sunglasses Cheap for Sale lens varieties, degree, origin, batch number, technical indicators, such as bar codes on packaging, you can check with your optometry prescription is consistent.
Today, more and more myopic crowd, so many people had to go with a pair of glasses to solve vision problems; optional lens Cheap Mac Cosmetics Makeup wholesale Outlet glasses that cannot be missed, Essilor, Hoya, the Soviet Union took and Zeiss, because most of the lens material becomes high preferred glasses family. But filled with cottage, counterfeiting and other products often found not new and was beloved glasses Essilor lenses are inevitable. Beware of fake glasses buy glasses; following practices on
You can identify the lens of authenticity.
A: Look lens film color. By looking at the color of the reflective film of the lens is determined. The vast majority of brand Fake Oakleys Gascan Sunglasses Cheap for Sale lenses green film, in addition to blue and purple and so on film; film lens color is rather special, for a touch of yellow-green, relatively few other brands on the market this color.
Two: the lens fog was observed in addition to 1.74 marks Essilor lenses, all of Essilor II or diamond crystal diamond crystal lens cleaning Chile has "CRIZAL" the diamond crystal mark, you simply facing a lens Ha tone will be revealed, but if the size of the mirror is very small circle have been worn or partially processed cutting edge may be worn (low probability), then you need to distinguish between the outside of the packaging.
As if to distinguish between "diamond crystal II" and "Diamond Crystal Chi Kit" You can put the lens into the water washing, clean the lens on the basic wisdom not wet, wet part will show the security word mark "CRIZAL", while the diamond crystal II or other brand Tiffany and Co Necklace Jewelry Outlet Store lenses do not have this effect.
PC resin lens and lens which is better? Tiffany and Co Necklace Jewelry Outlet Store Glasses when we encounter salespeople always asked the question, "What kind of material do you want to select the lens; our side resin lens and PC lens sell better" glasses when we are not encounter to this question then, what is the resin lenses, what is the PC lenses do, they are any different, LOHO glasses senior living optometrist to introduce you to a resin lens and PC lens which is good.
Resin lens:
Resins are derived from a variety of plants, particularly conifers hydrocarbons (hydrocarbons) class secretions. Because of its special chemical structure and can make use of this paint and glue are valued. It is a mixture of several polymer compounds with different melting points so. Resin can be divided into two natural resins and synthetic resins. Resin types are very, very much, is widely used in light industry and heavy industry among people in everyday life among often be seen, such as plastics, resins glasses, paint. Resin lenses is to use chemical processing synthetic resin lens material after grinding
Pros: resin lens is composed of two fatty alcohol glycol and propylene polymerization reaction. Light weight, impact resistance, high temperature, light transmittance Cheap Mac Cosmetics Makeup wholesale Outlet is good, close to the glass lens performance, can block ultraviolet rays.
Disadvantages: the surface abrasion resistance, chemical resistance than glass is poor, the surface is easy to scratch, a large water absorption than the glass; high coefficient of thermal expansion, poor thermal conductivity, low softening temperature, easily deformed and affect the optical properties.
PC lenses:
General resin lenses are thermoset materials, namely raw material for the liquid to form a solid lens after heating. PC piece called "space film", "cosmic piece."
Advantages: light, lighter than traditional glass 57%, security, its impact resistance is 60 times that of glass, do bulletproof Fake Oakleys Gascan Sunglasses Cheap for Sale glass thickness 2.5cm. Thin, with a refractive index of 1.6 is equal to CR-39 lens thickness
Now more and more joined the ranks of the precious metal Tiffany and Co Necklace Jewelry Outlet Store wedding ring material, you can distinguish between platinum and palladium it? What white K gold is? Read through this wedding ring material guide, you may be able to more clearly know what they want the wedding ring material, in order to find the most appropriate ring.
Platinum
Commonly known as platinum, a rare natural white metal, is famous for its strong and pure.
Reason that people loved: Platinum high-density gives it unusually strong, which means that it can properly protect and secure the diamonds or other precious stones. And it is natural Harmonie, worn on sensitive skin without any problems. When platinum was scratched when (all metals will be scratched), it just produces metal displacement, not the loss of quality. So your ring can resist years of erosion. In addition, because it is a pure white metal, so it does not give the central projection on any color gem.
Gold / white K gold
Gold: These natural yellow metals usually kneaded with various metals in order to obtain additional hardness - it usually has a purity of 70-75%. So inlay on it will present a iridescent Fake Oakleys Gascan Sunglasses Cheap for Sale gems, including white, green and pink.
K White Gold: Gold plated layer of rhodium on, let it become white, but as time goes by, the coating may be worn away, it also exposed the original color.
By reason people love: it is a more common metal, so compared to some other metals, it is cheaper. And it can be incorporated into different alloy, which means it can decide according to their own preferences tone.
Rose Gold
This pink tone metal is an alloy of gold and copper blend. Adding more copper alloy that rose more full-bodied tone.
Reason that people love: Why do people particularly fond of rose gold, one of the reasons is its potential significance. White K gold on behalf of friendship, gold represents loyalty, and rose gold on behalf of love. In addition, it is very strong, and Cheap Mac Cosmetics Makeup wholesale Outlet with a variety of different colors are very nice.
But in the clinic because there are more and more people wearing large-framed glasses, appeared significantly decreased visual acuity, field of vision smaller, dizzy, and even cases of vertigo. Wearing large framed glasses have many side effects: nose deformation retraction, affect the development of the nasal cavity and nasal ventilation, induced rhinitis; visual impairment, vision continued to decline, the greater the higher the degree of side effects.
Trendy big box mirror too often due to lens, so the lens of the "IPD" probably a little bigger. Some smaller when IPD patients with large frame mirror, on the problem of excessive error IPD particularly prone.
There may be equal to the large-framed glasses wearing "prism"
If you wear glasses IPD wrong, what kind of consequences? That is equivalent to the one in front of the eye frame prism. Will produce the phenomenon of light refraction, the wearer to see things prone to ghosting. Long wear may dizziness, insomnia.
1 large box lens wear more deeper degree? High myopia does not take, not all big box myopia will lead to vision problems.
Currently the regular hospital and optical shop using more advanced milling machine has a large frame mirror as long as IPD correct, but also can wear. Consumers barely wear small IPD does not match the big-framed glasses, or small shops making unqualified error too large framed glasses will go wrong.
Wearing large Cheap Mac Cosmetics Makeup wholesale Outlet frame mirror clinically discomfort mainly in blurred vision, dizziness and other symptoms, decreased vision inverted much. But if patients with high myopia, if not unqualified to wear large frame mirror, the impact on health is indeed larger than the average person.
2 large boxes mirror so deformed nose induced rhinitis?
Generally, adult nasal development has been completed, the nasal bone can afford a certain weight. In simple terms, large-framed glasses, although a lot heavier than ordinary glasses, but to make the nose deformation, and even affect the nasal ventilation, still not.
As induced rhinitis, and no talking. Adults wearing heavy big-framed glasses, the impact on the nose is mainly uncomfortable, but also the development of young nose yet fully developed, relatively fragile bones are not yet finalized, the impact will be relatively large, it is best not to wear. Nasal trauma, and do not wear.
Some young people are not myopic, for a pair of big box shelves poser mirrors, lenses are available and some plain, some simply do not have even the lens. This has no effect on the eye it? The doctor said, plain Fake Oakleys Gascan Sunglasses Cheap for Sale glass spectacles although no degree, but it is on the eyes, after all, is a "barrier", if the lens stained with dirt, or have some impact on vision. Amy's friends can only wear a stylish frame Falls.
Strong sunlight in the summer, many people are wearing Fake Oakleys Gascan Sunglasses Cheap for Sale sunglasses. Anti-reflective protective lenses, color lenses, color lenses, polarized lenses, color lenses ... ... Colorful sunglasses on the market, some people tend to buy their favorite color and style, completely ignored the sunglasses the UV effect.
What kinds of lenses can suntan without hurting glasses? In response, Beijing Tongren hospital optometry professional optometrists Lv Meng warned that sunglasses do not prevent Sun, may hurt the eyes. conspicuous when it encounters a glare and UV rays without shelter, the light will go directly to the pupil, thus cause damage to eyes. Sunglasses in different ways (such as polarization, color, coating, etc) play the role of UV. Sunglasses can block UV rays and glare, because of added a special coating on the lenses.
Lv Meng warned that buying sunglasses must go to a regular Tiffany and Co Necklace Jewelry Outlet Store store. At the time of purchase, to look for the package "100% UV" and "uv400", "ultraviolet" logo.
While the color of the lenses mentioned, United States experts in blindness prevention Union recommended that, in General, summer Brown, and Tan is a better choice of lenses, and the more strong outdoor sunlight, should choose the dark sunglasses. Partly because of these colors better lens glare, UV absorption and filtration; on the other, is a Brown lens provides good color perception, wear can still distinguish colors clearly, tinted lenses can block the surface of smooth and shining Ray, under the glare of the Sun to be able to see the object details, driver's tinted glasses is a better choice. And green glasses have sold well in the market, can reduce the level of visible light enters the eye, especially dark green, can absorb heat. While blue, pale yellow and pink lenses are not suitable for wear in bright white light, because Cheap Mac Cosmetics Makeup wholesale Outlet anti-reflective effect was weak.
Today, the Fake Oakleys Gascan Sunglasses Cheap for Sale lens resin lens has become the mainstream of the market, while wearing the lenses in the process will inevitably contaminated with some of the dust, dander and oil, but because of resin lenses do not wear glasses if you wipe it with a cloth or direct tissue will inevitably leave some plans marks affect wearing comfort. Lens care is directly related to the life cycle of glasses, spectacles living below LOHO experts to share cleaning and maintenance methods under resin lenses.
A: resin lens cleaning
1, first with tap water, you can also use a mild soap or a special detergent, then special glasses cloth.
2, the use of shampoo or shower gel, because the two more oil, will produce a protective film, while the role of water fog would rub hand sanitizer in your hand fell out of foam applied to both surfaces of the lens, and then finger pulp close to the lens wipe back and forth. try to avoid nails to scratch the lens.
3, rinse lenses, not too much water, little bit you can. Lenses with water into a 45-degree angle and slowly pan washing, try not to let the water flow to the other side of the lens.
4, there is a lot of optical shops for cleaning lens glasses have this free service, if they can not deal with, or go to the optical shop to clean more at ease.
2, resin lenses first rinse, then resin lens cleaner or a small amount of detergent behind special cleaning, and finally with resin lens special lens cloth.
3, the application of resin lens special lens cloth, lens cloth fibers due to ordinary loose, easily mixed with sand, make lens wear, so it is best first lens rinse with water, then use a proprietary lens cloth.
4, coating resin lens in addition to touch the high temperature should be avoided draw, but should avoid acid fumes and other erosion, as in everyday life it is best not wearing cook, especially in poorly ventilated fume large
5, although the resin lens surface through a special hardening process, but still slightly inferior compared to glass, so to avoid friction with hard objects. Try not to wear at the seaside swimming.
Resin lens cleaning and maintenance should not be overlooked area of sand is considered, appropriate replacement resin sheet 2-3 years, and now the spectacle lens wearers are mostly less attention to cleaning and maintenance, often resulting in the lens scratches and cracks, so shorten the overall life of the resin cheap mac cosmetics makeup kit wholesale lenses, and "extended active duty" of the lens transmittance due to lower other issues, it is easy to cause visual fatigue due to myopia acceleration, so the glasses to regular maintenance and inspection, and timely updates.
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