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Choose the wrong sunglasses, in addition to the eye will suffer; even the bodies are likely to be offset. If your body as symptoms appear, indicating that you should put on a pair of sunglasses at once. American Academy of Ophthalmology, experts say, the weight of the sunglasses once overweight, excessive oppression of the temple will make the brain becomes tense, leading to intermittent headaches, Tiffany and Co Charm Bracelet Jewelry Outlet sunglasses syndrome, which is the most common one. If you feel a headache while wearing sunglasses always appear after take off and disappear within half an hour, the best light and compact pair of sunglasses to replace immediately. Sunglasses worn for a long time, if you feel the maxillary gingival numbness, pain on the front teeth, two lens care is likely to be too tight. Go glasses lens care shop asked people to loosen some, or exchange comfortable wide-brimmed glasses.
German ophthalmologist found that the initial performance of tight lens care is between the eyes or cheeks mild numbness, nasal discomfort when breathing, after a long period, the pain will gradually spread to the mouth, so you toothache endless. British Association for the Study of eye disease found that vision losses are associated with sunglasses lens color is too dark about. If your eyes are dark than light brown, blue and brown-eyed people have better UV resistance. Then you choose a dark purple or pure black Tiffany and Co Necklace Jewelry Outlet Store sunglasses, the eyes will fatigue, long down will cause vision loss. Korean Eye experts say most suitable for Asian women with dark eye lens color is light gray and pink. Abstract wearing glasses at the time, please grabbed the temples, facing out off, pick one hand while wearing glasses, likely to cause deformation, loosening.
Frame or lens stained with dirt, sweat, grease, cosmetics, cleaning with a mild detergent in warm water, then dry with a soft cloth. Prohibit prolonged wet, soaked in water and placed in a fixed position by sun exposure; ban placed on the current time, the metal edges. Glasses frame distortion, sagging, re-use, will cause the affected lens clarity, dashing to the dealer for a free adjustment. Fake Oakleys Frogskins Sunglasses Cheap for Sale Sunglasses plate after a period of time there may be a slight deformation, which is a normal phenomenon, can be adjusted to a store shelf can be executed. Please do not set aside time sensitive mirror of the direct glare place, otherwise it will shorten the color effect of the use of time, but if one but Dreaming of long-term wear and gradually losing its polarizing effect will not change, please rest assured that you are using.
When wearing sunglasses, visible light entering the eye is reduced, the pupil will naturally turn. This does not change the pupil what effect on healthy people, but for glaucoma patients, but more room to increase the circulation of the eye disorder, are likely to cause acute glaucoma, appear jealous, a sharp decline in eye pain, headache, nausea, vomiting, vision other symptoms. Therefore, patients with glaucoma or suspected glaucoma do not wear Cheap Mac Cosmetics Makeup wholesale Outlet sunglasses. However, because only a few parts of lack of ability to distinguish colors, wear sunglasses when after more indistinguishable color. Night blindness is caused by a lack of vitamin A, resulting in the dim light, vision is affected. So sunglasses night blindness will affect the patient's vision. Sunglasses optic nerve conduction disorders exacerbate patients, the impact of the disease recovery.



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After the yellow lenses absorb blue light can make the scene more clearly the nature, so as yellow lenses used to filter, or hunters use when hunting. However, no one can prove shooter because wearing yellow glasses, target shooting and therefore better results. Tinted lenses can absorb light in the violet, blue, can hardly absorb ultraviolet and infrared, to block the smooth shiny surface reflects light can improve visual contrast and clarity, in severe air pollution or foggy case wearing good results. Behind the sunglasses lets you active in the sun, good freedom. In fact, Tiffany and Co Charm Bracelet Jewelry Outlet sunglasses resist the sun, can not stop the pollution damage, so be careful care, lest face embarrassing. The biggest feature is the yellow lenses absorb most of the blue. Because when the sun light over the atmosphere, mainly blue performance.
Maintenance methods like sunglasses glasses general maintenance, cleaning, closed stack, storage should be a habit. But sunglasses often Tutu Dai, accidentally scratched, so there are some small details to remind you to: sunglasses tainted adhesion, it can not use nails to pull, it's easy to scratch wounds surface. When not wearing Tiffany and Co Necklace Jewelry Outlet Store sunglasses, many people will easily hung on the head, neck or pocket, the body's range of motion at this time do not be too large, in order to avoid tearing or crashing. Or someone will put in the bag, we recommend that you put in the hard or the first glasses box, then into the bag, so the lens is worn keys, comb, copper and other small things, or catching lipstick and other cosmetics, do not collision sharp objects.
Car owners are wearing sun glasses, do not wear often easily on the dashboard or on the seat, this is a very bad habit, hot weather will not baked prototype Fake Oakleys Frogskins Sunglasses Cheap for Sale sunglasses, especially plastic frame especially, preferably with off or collection box placed in the glasses. You are in the sunglasses collection where you want to be sure to remember the mirror up. In the design of the frame, usually by folding the first leg and the left is the mirror from the right. When in operation, use both hands; hold the mirror legs parallel to the direction along the cheek pick to wear. But I do not recommend dry rub, so easy to wear flowers lenses. Best to rinse with water and then dry with a paper towel re-use water glasses cloth to wipe. In the process of wiping his hand lift up and then wipe the mirror side. After wearing for some time, the frame may be deformed, a burden to the nose and ears, but also easy to loose lenses. You can own fixed or adjusted to the store.
Be sure to place the short upward convex lens, or easy to wear flowers while avoiding contacts with a variety of chemicals, cosmetics, pharmaceuticals, etc. also to avoid direct sunlight and high temperatures. If the place a long time then put the glasses cloth glasses box. I hope you pay attention to the daily maintenance of sunglasses, so as to better care sunglasses, sunglasses prolong life. Cheap Mac Cosmetics Makeup wholesale Outlet Sunglasses are because harm to the human eye to prevent sunlight intense stimulation vision care products reflects the personal style of beauty or special jewelry, according to the different needs of people to buy sunglasses. Some people buy sunglasses, often feeling unwell after purchase, or quality problems encountered glasses. Glasses experts reminded the public, be sure to pay attention to when purchasing sunglasses.



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As a natural eye protection mechanisms, it can absorb all the cornea of the eye and the vast majority of UV-B ultraviolet A. However, there is still a part of UV-A will reach the Tiffany and Co Charm Bracelet Jewelry Outlet lens of the eye. A long time to absorb ultraviolet rays may cause cataract, cornea to the retina through a small amount of UV-A can lead to macular degeneration, which causes macular degeneration is the leading cause of blindness for the elderly. Long-term exposure to intense ultraviolet light can cause eye cancer or actinic dermatitis, which is the retina burns. This often happens after a sunny outdoor winter snow, snow reflect the sun's glare, which is often called snow blindness.
Sunglasses have good UV coatings, UV radiation can be eliminated, and you must ensure that one hundred percent of your sunglasses can filter out two kinds of ultraviolet rays. The label on the sunglasses should indicate the extent to which the sunglasses provide UV protection, and you need to be protected. Tiffany and Co Necklace Jewelry Outlet Store Sunglasses nominal vertex values, deviation or assembly of lenses and lens manufacturing time frame does not match, there may be bias vertex, if beyond a certain range, the wearer may feel visual distortion, severe then will affect the wearer's visual health. If the lens has a prism, it will produce visual shift of focus, if more than the standard allowable range, it may result in binocular vision can not be one, or produce low sense of imbalance, increasing the wearer's eye muscle and optic nerve disorderly regulation can lead to serious neurological disorder or adjustment arising strabismus.
Light transmittance of the project is an important indicator to characterize the function of sunglasses. China's current classification standards here feature Fake Oakleys Frogskins Sunglasses Cheap for Sale sunglasses, while the European and international standards will be divided into multiple categories. If you use light-colored sunglasses for shade purposes, the wearer will not get good results shade, such as prolonged outdoor activities in strong sunlight, the wearer will be stimulated by strong light and fatigue. Light-colored sunglasses generally play a decorative role, or the sun is not strong indoors. On the contrary, in the room or do not need a place to wear sun block intense sun mirror, the pupil is due to excessive amplification discomfort, fatigue and so on. In the sun mirror, the transmission is not suitable for small products worn by the rider or car, because the rider or motorist traveling faster than the speed of pedestrians, the transmission ratio is too low will affect their ability to respond.
When the sunglasses meet this requirement, it reached the most basic requirements of protection, that is also a barrier to block the glare of the corresponding amount of ultraviolet light, wear sunglasses or at least not increase the amount of UV light to accept, wear sunglasses, will reduce the flux into the human eye, causing the wearer to increase pupil, under the same external conditions, if the appropriate amount of Cheap Mac Cosmetics Makeup wholesale Outlet sunglasses can block UV light, the human eye will accept more than not wearing sunglasses when ultraviolet light. Clearly defined UV sunglasses lenses used must not exceed the maximum transmittance. UV performance is an important indicator of sunglasses, a pair of sunglasses with UV function if we can not distinguish with the naked eye. The current product performance standards for UV only basic requirement that the wearer harmless. Protection mainly made explicit commitments by the manufacturer, but not all products have anti-UV sunglasses function as a consumer to identify whether the product has anti-ultraviolet function, only the factory to express commitment to the product as the only reference.



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Blue lenses can play in sun sea beach blue lenses; can effectively filter out the blue sea and sky reflected light blue. Driving should avoid using blue lenses, because it will make us a confusion traffic signal colors. Human self-preservation instinct, his eyes encountered light, the pupil will naturally become smaller, making the reduction of UV energy entering the eye, once put on glasses without UV protection function, make dilated pupils, plus glasses no effect of UV rays, then the door wide open eyes equals, despite the UV into the eye injury can be imagined. Tiffany and Co Charm Bracelet Jewelry Outlet Sunglasses can block UV rays, because the lenses add a layer of special coating, which not only inferior sunglasses can block UV rays, but also to a serious decline in the lens transmittance, making the pupil larger, but will be a substantial injection of UV, making eye by loss. In addition, poor quality lenses also make nausea, forgetfulness, insomnia and other symptoms of visual fatigue.
Sunglasses color to light gray, brown or smoke color is superior, followed by green, amber, blue, red, and use only as the sun or snow. Car is best to use polarized sunglasses, because they can decrease glare. If you wear Tiffany and Co Necklace Jewelry Outlet Store sunglasses, others can very clearly see your eyes, and then your lens color is too shallow. When the sun goes down, it is best to remove the sun glasses; otherwise, we are affected vision in low light areas will. Should go to regular optical shop choose the regular manufacturers have to get sunglasses with UV protection. Note that the lens surface conditions selected. To buy quality sunglasses, the only way to do that is to the optical specialty stores, regular optical shop to buy sunglasses. Round face you need linear or angular frames to weaken your profile, please use deep, subtle sense of color lenses reduce obesity, make the face look more exquisite.
In contrast with the round face, square face, you need some rounded, streamlined frame to set off your extraordinary uninhibited temperament. Avoid triangular face with a large frame, square frame, because it would seem more narrow width of the face, use a thin frame, round frame, bright colors for the best. Oval face, you are inherently very suitable platform Fake Oakleys Frogskins Sunglasses Cheap for Sale sunglasses oh. No matter what style are well suited to you, take note of the size ratio on it. Rectangular face is your most suitable sunglasses large frame, so you can make up for the shortcomings of small long face, make the face look more delicate, color dark colors. Many well-known brands are sunglasses as part of their product line. Depending on the characteristics and brand sunglasses floating price will be between $ 20 in less than a few hundred dollars.
The market there will be counterfeit. At discount stores and flea markets when shopping, you will find vendors who sell counterfeit high-priced counterfeit brand sunglasses, looks exactly the same appearance, but the prices are far lower than the real thing. The biggest problem is that cheap sunglasses lens production methods. They are simply a layer of colored film on ordinary plastic coated. Even if these counterfeit colors and frame similar to Oakley Metal Romeos or Ray Ban Predators, but the actual lens is different. Quality Cheap Mac Cosmetics Makeup wholesale Outlet sunglasses are very efficient light regulator. Sunglasses can adjust the external light, making it suitable for the human eye. In the next section, we will introduce a variety of techniques to adjust the light used by the manufacturer of sunglasses. To better understand these technologies, we must first understand some knowledge about light.



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تاریخ انتشار : جمعه 13 تير 1393 | نظرات ()
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Overlap is not by chance to form a wave crest wave of its close cooperation with the wave trough together, resulting in mutual offset. Destructive interference depending on the refractive index of the lens also depends on the thickness of the lens. Polarized Tiffany and Co Charm Bracelet Jewelry Outlet sunglasses provide another mechanism to protect the eyes. This differs from the reflected light directly from the sun's light, or any light from artificial sources of the problem lies in the order. Polarized in one direction by the full shock wave formation, and general light is not directed by a shock wave into the open. It's like a group of disorderly people walk around with a group of soldiers marching pace of traveling as stark on through.
Generally speaking, the reflection light is a light orderly. AIKUSTE polarized lenses are particularly effective when blocking this light because it's filtering of the play. These lenses only allow a certain direction shock waves through polarization, like the light sort of the same. For questions reflective road driving friends should empathy, using polarized Tiffany and Co Necklace Jewelry Outlet Store sunglasses to reduce the transmission of light, because it will not let the road parallel shock waves through. Indeed, the molecular filtration layer is oriented in the horizontal direction length; the line can be absorbed horizontally polarized. Thus, most of the reflected light was eliminated, while the ambient illumination is not decreased. Polarized sunglasses lenses darken in the sun's rays can be shot to after. After lighting weakened, it also becomes brighter again. It does so because the silver halide crystals at work. Under normal circumstances, it can maintain the perfect transparency of the lens.
Under sunlight irradiation, crystal silver will be separated, in free form in the lens inside the silver will form small aggregates reflected in the UV irradiation is usually divided into two glasses and polarized lens Fake Oakleys Frogskins Sunglasses Cheap for Sale sunglasses, sunglasses we usually are familiar to block the sun and UV tinted glasses. The emergence of the human eye glares discomfort, fatigue and affect the clarity of vision. At the same time, there will generally identify polarizer identification plate, the naked eye without the black stripes, but bring polarizer looks naked eye you can see the black provisions do not see! Sunglasses do not. Not durable. Polarized light is partially reflected by the glare surface. Negative effects of glare, enhance brightness, color saturation decreased, so that the object contours become blurred, make eye fatigue, discomfort. Everyone at the time of purchase, as long as such a simple operation, they immediately know the authenticity and quality of the product.
Ordinary sunglasses can reduce the intensity of light, you can not effectively remove surface reflective and bright glare in all directions and in addition to UV polarizer and reduce the intensity of light, and it also can effectively filter out glare. Now anti-ultraviolet radiation is usually divided into two glasses and sunglasses polarized lens, sunglasses are familiar we usually block the sun and ultraviolet rays for colored glasses. The emergence of the human eye glare discomfort and fatigue and affect the clarity of vision, the polarizer is that we can effectively filter out glare Cheap Mac Cosmetics Makeup wholesale Outlet sunglasses. Identify polarizer many ways, which is a relatively simple one: the two stacked vertically polarized lenses, lens opacity phenomenon will occur. The reason is that a specially designed lens polarizer only allow parallel light through the lens, both lenses are stacked vertically in the majority of the light is blocked.



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Sunglasses can be selected according to the desired selected light microscopy, dark mirror or outdoor mirror. Choose Tiffany and Co Charm Bracelet Jewelry Outlet sunglasses lens color to brown; gray or green is appropriate to have anti-ultraviolet function. Use sunglasses to be replaced in order to avoid the use of sunglasses for too long, cracks, color lighter and so on; resulting in reduced UV protection sunglasses, bring harm to the eyes. A pair of good quality sunglasses lens price should not be too expensive, so do not because it is cheap to buy a lot of colorful sunglasses, so when you wear sunglasses tend to be very uncomfortable, not color distortion, the lens is easy to wear, and it is easy to make eye fatigue. The best is to choose the more intense the light of day, when the optical shop went outside to try sunglasses.
Beautiful frame is important, but the comfort level of visual comfort level sunglass lenses and frames wear more important. If you can not have both fish and bear's paw, care of fish and eat it also. Choose the best summer sunglasses gray lenses summer, probably everyone has Tiffany and Co Necklace Jewelry Outlet Store sunglasses, sunglasses thing to talk about today. Here you can certainly tell you that you have to wear sunglasses, especially under strong sunlight conditions, it's not just for pretty, decorative, there are many benefits of wearing sunglasses. This is because the primary function of sunglasses that block glare, harmful UV rays to avoid too much into the eye, causing damage. If in the summer, bring sunglasses.
In order to reduce the burden of eye culinary muscle in bright light, the human eye in the habit of natural light to see objects, which the human eye is the most comfortable time to time, not only with sunglasses to block harmful rays, windy weather, it can prevent the dust particles into people's eyes, which to some extent, it became a haven for the best eye. According to expert determination, sunspot activity more frequently, resulting in the damage of ultraviolet radiation on the human body is growing, especially in the highland areas of Qinghai and Tibet due to the long hours of sunshine, so here are the most vulnerable to UV damage, life people in these areas in particular should bring Fake Oakleys Frogskins Sunglasses Cheap for Sale sunglasses. Any balanced absorption spectrum, so watch the scene will darken, but there will be no significant difference, to show the real natural feeling. Improve the visual contrast and clarity, a large blue filter. In severe air pollution or fog conditions, wear better.
Only one big box, large lens sunglasses that first time, because it looks like a frog's eyes especially, but not the idea, but not what color the eyes are good Also, bring your favorite sunglasses does not seem to work for you, the first is that the problem of the color of sunglasses. The current production of materials and myopic lens Cheap Mac Cosmetics Makeup wholesale Outlet sunglasses on the market are basically the same, but also of two types of glass and resin sheet, but the two different processing technology, glass lens sunglasses mainly in mixing glass add some with special absorption the nature of the metal, such as nickel and cobalt added purple glass lenses, adding cobalt and copper blue glass lenses, and sunglasses resin lens is mainly used in immersion dyeing method, the lens is immersed in an organic dye dissolved in among colored water, but no matter what kind of colored sunglasses fashion color must be good for our eyes.



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تاریخ انتشار : سه شنبه 10 تير 1393 | نظرات ()
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Maintenance is not the most perfect system, some of the cleaning solution is effective, but it will cause allergies in some people's eyes, irritation, so when you buy contact lenses, be sure to ask the most suited to their lifestyle and physical condition of the maintenance system and do not care for any mix of different systems, general maintenance of the system to select a few key points to note are as dirty clothes in general if not after the first scrub, directly thrown into the washing machine is unable to remove stubborn dirt, like truth, certain contact lenses to handle scrub in order to achieve the cleaning effect. Study reported that by the hand scrub the lens is more effective than any machine to remove impurities and sediment on the lens. Periodic replacement contact lenses: contact lenses unlike Tiffany and Co Charm Bracelet Jewelry Outlet glasses lens, and then the perfect way of cleaning and maintenance, there will still be little residual microorganisms on the lenses. Even if infrequently used, naturally become old, new ones should be discarded at this time, to prevent eye injury.
Contact lenses can not be stored in saline solution: saline no bactericidal effect, to save the lens, easy to breed bacteria and cause eye infections. Tear protein contained ingredients easily adhere to the lens, and very stubborn deposits on the lenses, even daily cleaning can not be completely removed, the longer and more difficult to clear backlog, make eye redness, photophobia, lens discoloration, irritation of the eyes of the immune system to produce antibodies, causing the "Big protruding conjunctivitis" and other diseases. Cleaning Tablets to protein enzymes can break down the protein structure, chopped, to eliminate adhesion to achieve the cleaning effect. Protein usually goes once a week to do the work. Behind the sunglasses lets you active in the sun, good freedom. In fact, Tiffany and Co Necklace Jewelry Outlet Store sunglasses resist the sun, can not stop the pollution damage, so be careful care, lest face embarrassing.
In fact, maintenance methods like sunglasses glasses general maintenance, cleaning, closed stack, storage should be a habit. But sunglasses often, accidentally scratched, so there are some small details to remind you to: sunglasses tainted adhesion, it can not use nails to pull, it's easy to scratch the surface the. When not wearing sunglasses, many people will easily hung on the head, neck or pocket, the body's range of motion at this time do not be too large, in order to avoid tearing or crashing. Or someone will put in the bag, we recommend that you put in the hard or the first glasses box, and then into the bag, so the lens is worn keys, comb, copper and other small things, or catching lipstick and other cosmetics. Skin, sweat or grease on the metal part of the frame is easy to produce corrosion, cleaning glasses a day, to extend the useful life of the Fake Oakleys Frogskins Sunglasses Cheap for Sale glasses. Prolonged exposure to the place where the sun is easy, because the frame under the light and heat of decomposition, easy to fade. Do not touch the lens with hard objects, do not wipe the lens with your fingers, use a clean cloth to wipe the lens, reducing lens wear.
Do not towards the front of the lens decentralization. Such as when not, try to put glasses box, wear glasses if not, and please use the lens cloth glasses wrapped into the mirror box to avoid damage. This lens is coated with a thin layer on the surface of magnesium fluoride to prevent light reflection, make you see things more clearly and without light interference. To test whether your glasses with anti-reflective protective lenses really, the glasses can be aligned light source, if you see a purple or green reflective, it means the lens does have anti-reflection coated with a protective film. Also known as tinted lenses, the lens is in the production process, with some chemical substances, so that the color rendering of the lens to absorb specific wavelengths of light. This is the type of Cheap Mac Cosmetics Makeup wholesale Outlet sunglasses lenses most commonly used. This lens effect of rendering the same color lenses, made only in different ways, it is the color coating on the lens surface, is the most well known type of gradient lens coloring, at the deepest color is then gradually down light . General Multi-prescription sunglasses lenses are painted manner.



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تاریخ انتشار : دو شنبه 9 تير 1393 | نظرات ()
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Pregnant women are not suitable for contact lens wearers. During pregnancy, because the human endocrine function changes, decreased barrier function of the corneal tissue, reduced tear secretion, causing discomfort to wear, so it is best not to wear. Price Crystal glasses are expensive, but after wearing feel very cool, some people think it has the role of raising purposes. This is no scientific basis. Crystal glasses are the first to be used for the production because it was not yet the manufacture of optical glass, no better than the crystal optical material. Crystal Tiffany and Co Charm Bracelet Jewelry Outlet glasses are expensive because of hard brittle crystal geological strong, not annihilation but less pure crystal production is not because the eyes have a special maintenance effect, people wear crystal glasses feel less cool because of the lower temperature crystal lens for ultraviolet and infrared absorption, but it does not support mesh.
Sports arena, have you experienced or seen the collision or because of physical force and cause eye injuries bloody scenes? Especially in some highly competitive sports, because sports equipment confrontational limbs and very intense, a little negligent and careless in any collision could cause permanent damage to the eyes, while the traditional optical Tiffany and Co Necklace Jewelry Outlet Store glasses in addition to vision the outside does not really make up for the protection of your eyes, but also the presence of layers of security risks in the external force, frames and lenses easily fall off / deformation or rupture and damage to the eyes. Designed specifically for basketball fans myopia, framed by high-tech processing technology integration, width, curvature of the face is more suitable for the characteristics of Asians, knuckle flexible, easily deformed, can more effectively protect the eyes and nose, flank vents make more secure and comfortable to wear, can ho no scruples surf in the sports arena.
Elastic and anti-allergic silicone nose pads, so that the frame will not stick too close to the face, and can effectively resist and cushion the impact of the eye when you close contact with the opponent, to protect the eye from damage. Self-adjusting glasses is based on optical principles, can consciously change the curvature of the lens of the sensor, and to make corresponding new soft lens diaper adjustment, so that long-term use of a pair of Fake Oakleys Frogskins Sunglasses Cheap for Sale glasses, do not replace, save trouble, save money and achieve optical use and glasses in the history of a major revolution. Special glasses. The front is no different from ordinary glasses, after wearing through the outside of the lens, can be seen clearly behind him, so the detective can conveniently indecisive, beware of being anti-tracking. On tracking and monitoring is concerned, both behind the object being monitored jobs, but also in their front or side of the job, with better concealment.
Many different types of Cheap Mac Cosmetics Makeup wholesale Outlet glasses mainly used for correction of refractive errors Glasses and contact lenses. Should wear appropriate power of a concave lens, so that divergent light by the concave lens properly, then a clear image is formed by the refraction on the eye retina. Due to the type of astigmatism varies. For simple hyperopic astigmatism, should wear appropriate convex cylindrical lens and a certain degree of axial; For simple myopic astigmatism, should wear appropriate and a certain degree of axial cylindrical concave lens; For complex astigmatism should wear degrees and axial suitable composite cylindrical convex lens; for mixed astigmatism, should wear appropriate degree and appropriate axial cylindrical concave lens made of a composite.



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تاریخ انتشار : شنبه 7 تير 1393 | نظرات ()
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There are too many light sources will produce harmful light, especially sunlight. Because polarized sunglasses with polarized light function, so that all can block out the harmful rays are not affected by visible light, can really achieve eye protection function. Polarized sunglasses UV protection in addition to the basic functions, but also has an anti-glare. Tiffany and Co Charm Bracelet Jewelry Outlet Polarized sunglasses can block uncomfortable glare while protecting eyes from UV damage. All of this is thanks to the metal powder filters; they can be selected when light strikes. Polarized sunglasses can selectively absorb the sun's rays composed of band portions, because it is by means of a very fine metal powder. When light shines on the lens, based on the so-called destructive interference process, reduced the light was. That is, when certain wavelengths of light through the lens, i.e., toward the inside direction of the eye lens, they will cancel each other.
Overlapping waves formed not by chance, trough wave crest of a wave with its close together, led to cancel each other. Destructive interference depending on the refractive index of the lens also depends on the thickness of the lens. Tiffany and Co Necklace Jewelry Outlet Store Polarized sunglasses provide another mechanism to protect the eyes. This differs from the reflected light directly from the sun's light, or any light from artificial sources of the problem lies in the order. Polarized in one direction by the full shock wave formation, and general light is not directed by a shock wave into the open. It's like a group of disorderly people walk around with a group of soldiers marching pace of traveling as stark on through. Generally speaking, the reflection light is a light orderly. Visible light is a transverse wave, the vibration direction perpendicular to the propagation direction. The vibration direction of the natural light in the plane perpendicular to the propagation direction is arbitrary; polarization for which the vibration direction at a certain moment, are defined in a specific direction.
Polarized lenses are particularly effective when blocking this light because it's filtering of the play. These lenses only allow a certain direction shock waves through polarization, like the light sort of the same. For road reflection problems, polarizing sunglasses can reduce the light transmittance, and since it is parallel to the road vibration let the light through. Indeed, the molecular filtration layer is oriented in the horizontal direction length; the line can be absorbed horizontally polarized. Thus, most of the reflected light was eliminated, while the ambient illumination is not decreased. Fake Oakleys Frogskins Sunglasses Cheap for Sale Polarized sunglasses lenses darken in the sun's rays can be shot to after. After lighting weakened, it also becomes brighter again. It does so because the silver halide crystals at work. Under normal circumstances, it can maintain the perfect transparency of the lens. Under sunlight irradiation, crystal silver will be separated; in free form in the lens inside the silver will form small aggregates.
These small gathering takes the shape of interlocking silver irregular lumps, they can not transmit light, but can only absorb light, the result makes the lenses darken. In the case of light and dark, heavy crystal formation, the lens has to return to the bright state. Color saturation, so that the object contours become blurred, make eye fatigue, discomfort. Polaroid is made based on the principle of light polarization, when the plane of vibration and light polarization axis that is parallel to the polarization filters through. Thus, the light is organized into the same direction of light into the eye, so that the surrounding scenery looks clear without glare. So this lens is ideal for driving and outdoor activities to wear in recent years, favored by the majority. Driving are more like to wear Cheap Mac Cosmetics Makeup wholesale Outlet polarized sunglasses, because in addition to blocking UV polarizer, but also to minimize glare and filter out reflected glare.



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تاریخ انتشار : چهار شنبه 4 تير 1393 | نظرات ()
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تاریخ انتشار : سه شنبه 3 تير 1393 | نظرات ()