Photochromic Glasses Mysteries

28/giu/2014 04.03.07 Danielbest Contatta l'autore

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This special glass is called photo chromic glass. It is in the manufacturing process, the pre-light-sensitive material braced as silver chloride, silver bromide, silver, a small amount of copper oxide catalyst. Glasses from no color becomes light gray, dark brown, black glasses and then changed back from ordinary Tiffany and Co Key Necklace Jewelry Outlet glasses are silver halide becomes magic. Color glasses in glass, the exposure of the photographic film and there is a similar change in the imaging process. The silver halide to light decompose into many black silver particles uniformly distributed in the glass, the glass lens so dim, blocking passage of light, which is the black glasses. But, the situation is not the same on the photographic film, the silver halide decomposition of silver atoms and halogen atoms, still tightly put together. When back a little darker place, in the promotion of copper oxide catalyst of silver and halogen compounds re-produce silver halide, glass lenses and become transparent. Photographic film and photographic paper can only be used once, but you can always use color glasses down. With color glasses can not only change the intensity of light is dimmed that the human eye can absorb harmful ultraviolet rays, is indeed the Fake Oakleys Holbrook Sunglasses Cheap for Sale glasses in the top grade. If the windows are replaced photo chromic glass, sunny, sun room to shoot less; in some upscale hotel, restaurant, has been the placement of discolored glass. This photo chromic glass cab and tour the car window mounted in direct sunlight, even the color glasses do not have to wear, the car has remained soft light, avoid bright sunlight and exposure, and everybody that is what a joy ah. Contact lenses, as the name suggests, wonderful in stealth. It has the functions of ordinary glasses for vision correction, but also lifted the Fake Oakleys Frogskins Sunglasses Cheap for Sale glasses for the inconvenience, so wear contact lenses have become a today's fashion. However, contact lenses are not for all those who need glasses are applicable. Hands often with a large number of patients with flu germs, they are easy to take, into the eyes when wearing contact lenses. Cold is often accompanied by a slight inflammation of the retina, wearing contact lenses cause inflammation. Many colds, cough, and pain medicines contain ingredients suppress tears. Contact lenses will reduce the amount of tear secretion is too dry; reduce transparency, thereby affecting vision. People who have allergies to wear contact lenses can lead to complications, there was a slight inflammation, eye itching, redness, conjunctivitis and eye swelling. If these conditions are not long-term treatment may endanger vision. Allergies such as the need to wear contact lenses, it is best to use and only during the day suspended at least one day a week. If inflammation occurs, it is best to stop using. Diseases glaucoma, chronic, conjunctivitis, corneal ulcers, hyperthyroidism and other Rouyn with contact lenses, and eye inflammation are in, to wait until the inflammation disappeared after wearing. Fever eyes of local resistance decreased tear secretion, B. subtitles will multiply, so that metabolites of bacteria deposited between the cornea and lens, resulting in lower oxygen permeability of contact Cheap Ray Bans Wayfarer Sunglasses Outlet Sale lenses, corneal disruption of normal metabolism, thus cause bacterial corneal ulcers. More obvious eye tissue degenerative changes occur in the elderly. Eye down local resistance, especially the ability of the eye decreased tolerance to hypoxia, at this time if the surface of the eye lens wear thin, it will lead to eye hypoxia, which is prone to corneal infections, ulcers and other complications. 40-60 year-old middle-aged man wearing contact lenses can be a short time, the elderly it is best not to wear contact lenses, otherwise easily lead to serious complications, resulting in permanent visual impairment.
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