Pure
titanium, refers to the purity of more than 89% of Titanium Titanium
material, high melting point, light weight, corrosion resistance,
coating in prison
-Fixed. The
disadvantage is a soft material, not more delicate frame, not only
relatively coarse lines, can guarantee the stability of the frame and
strong
Degrees.
Development of titanium eyeglass frames eyeglasses
Titanium
eyeglass frames in the early 90 's was already mature and start mass
production in a foreign country, before the 1998 titanium eyeglass
frames, which was occupied by Japan to sell more than 60%. Titanium
eyeglasses frames belonging to the upscale consumer, improving the
living standards of people in China in recent years, the rapid
development of the national demand for titanium eyeglass frames,
internally, there have been several titanium glasses frame manufacturer,
but all of its raw materials is still dependent on imports from Japan.
Soft contact lenses--doctors ' Plot? Raised
in the article: "soft glasses very attracting of the cornea does not
move, there is the exchange rate for the tears", "soft contact lenses is
a large diameter, bigger than the cornea. Large,
easily lead to giant papillary conjunctivitis "," soft contact lenses
the lens on the cornea does not slip, so it makes no sense to foreign
body "," AA only, to avoid the complications of hard contact lenses
contact lenses. "
Soft contact lenses are really like I said in the article it is harmful for the eyes? LV
Yanyun, Director of Beijing Tongren Hospital contact lenses the Centre
pointed out: "contact lenses according to the product materials are
divided into three types, hard contact lenses (HCL), the permeability of
the semi-rigid contact lenses (RGP), soft contact lenses (SCL). Hard contact lenses due to the low oxygen level, the clinic now essentially has been eliminated. Semi-rigid
contact lenses is very high air permeability, optical effects, higher
costs, more users abroad, some hospitals are already in use in China at
the moment. Good air permeability of soft contact
lenses, and high water content, wear comfortable, the price is
moderate, mainstream market through long-term clinical observations,
after verification, both at home and abroad are also in common use. "" Actually, soft contact lenses, it is a tear between the cornea and the lens. Contact
lenses and cornea You well should be a good match: lens evenly over the
cornea, with the eyes, the lens on the cornea has the right traffic,
thus guarantees the exchange of tear. Soft contact lenses and tear exchange between the cornea does not feel very directly. "On imitation products, the quality is absolutely no warranty. The quality of the product must be clear, brands, OEMs, date of production, marketing, certificates, test reports are necessary.
Maintenance frame sunglasses
1, place glasses and stored properly. Glasses
when not below where it should be placed away from children to avoid
the broken glasses or lens break and pose a danger to children. While bathing, sauna or seawater baths, glasses should also be kept to prevent corrosion caused by moisture or water glasses. If
carelessly placed on the table, never leave the lens convex surface in
contact with the desktop, so that it does not touch the mirror the loss
of abrasions. Do not place in direct sunlight or
heating package, glass frame a long-term contact with light and heat,
easy deformation or discoloration, such as reading glasses, and
hyperopia mirrors direct sunlight place, due to the effect of focusing
the lens, is in danger of fire. If the long time does not use eyepieces, you must save them in glasses in the box.
Knowledge of life: how to make glasses marquees and maintenance?
2 to clean the lens. Holder to clean lenses on a regular basis to maintain good term. Pollution is light and mirror with a soft paper towel or cloth. If
lenses with dirt easily removed no matted, you should first rinse,
stained glass with oil, use neutral SOAP for cleaning and washing, and
then clean with a soft, dry cloth or tissue available glasses do not use
sharp things scratch the tick. Cleaning of glasses, you need to use a special lens polishing cloth to clean, be gentle. When clean the mirror, preferably handbag spectacle frames in the nose, the other hand and gently wipe the lens.
3, maintenance of eyeglass frames is also important. Plastic frame glasses should avoid contact with organic solvents, avoid high temperature and fire. Metal frame in order to prevent corrosion and premature fading, no exposure to acids, alkalis and corrosive gases. Then the corrosion of parts of the human body, so the glasses"sdwrx3ssa3xg"