Lenses & Coatings
Lenses
• Conventional lenses
Conventional lenses are recommended for recipes with no more than +/- 0.25 and 2.00 indicators, which are made from high quality plastic. If your prescription index is higher than those presented or you prefer to use thinner lens, the pick the necessary lens from our wide range of.
• Polycrbonate lenses
Polycarbonate eyeglass lenses successfully combine a range of exceptional quality and on a number of parameters is much superior to a huge number of currently existing organic lenses. The most important property of polycarbonate - its high impact resistance, when excessive impact load deformed. Refractive index of polycarbonate is 1.59 (CR-39 have a refractive index equal to 1.5). A higher value for the refractive index of polycarbonate as compared with the conventional plastic, means that the lens will be thinner. In this type of lens a small proportion of total (1.20 g / cm3). Just polycarbonate lenses are resistant to heat and fully absorb ultraviolet radiation range of 380nm
• Thin lens
Lenses which are 30-40% thinner than conventional plastic lenses intended for recipes range +/- 4.00 to +/- 5.00. The index 1.6 You will be very surprised by the subtlety and lightness of these lenses.
• Extra thin lenses
Additional thin lens which is 45% thinner than conventional plastic lenses and have a refractive index of 1.67. These lenses are recommended for recipes where more than +/- 5.00 and +/- ranges more cylinders of 3.50 to 5.00 to achieve maximum results.
• Transitions- Light Adjusting
Transition lenses, also known as photochromic lenses have a coating which exposed to sunlight momentarily darken. In turn, in the room for example, when the direct sun rays pass through the lens, it becomes lighter, which makes visual acuity in darkness. They also maintain healthy eyes that block 100% UV radiation.
• Polarized lenses
Polarizing glass lenses used in polarizing glasses to improve the quality of vision and visual comfort by eliminating glare. Polarized sunglasses provide a better quality of vision and visual comfort than ordinary sunglasses.
Coatings for lenses
• Anti-Scratch Coating
Lenses made of polymeric materials are well withstand mechanical damage, and this is due to high safety when wearing glasses with plastic lenses. However, when wearing affects the relative lack of them: they are quickly scratched due to soft lens material. Scratches, of course, impair not only beauty, but also the optical properties of glasses and shorten their lifespan. To increase the stability of the surface of organic lenses to scratching by using a solid coating on the lens surface. Such coating without changing the optical properties of the spectacle lens, increases the resistance of its surfaces to the appearance of scratches.
• UV Coating
UV rays are invisible, that’s why the damage caused by them, is often underestimated. The result of such exposure could be a number of diseases. Few people know that the sun's rays reflected off the snow, and bad for the health of the eye. Scientists say that from the snow surface reflects 80% of UV radiation, which is absorbed by the cornea and lens.
• Anti-Reflecting Coating
The light beam intersect at an angle transparent media with different refractive indices at the interface undergoes some changes. One part of the beam will pass into the second medium, changing its direction. The other part is reflected from the surface of the section, returning to the first medium. The ratio of transmitted and reflected light differently. The proportion of the reflected light is determined mainly by the ratio of the refractive indices of the first and second fluid and the angle of incidence of the light beam on the surface of the partition.