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Bring in your eyeglass prescription, or we can retrieve it from your eye doctor.
John Shelswell  "We Can Do Better" (250) 871-8770
 
DRIVEWEAR - A Photochromic POLARIZED Lens designed ...
TO WORK IN A CAR!
 
 
drivewear polarized eye glass lenses   drivewear polarized eye glass lenses   drivewear polarized eye glass lenses
         
In the past, clear eyewear was enough. In bright light conditions, polarized sunwear was enough. This is no longer true. Today our lives are strongly influenced by the car, which has changed the way we experience the outdoors. We need a third category of lenses in our modern, car-centered world.   The Photochromic Drivewear lenses are capable of sensing and reacting to varying light conditions both outside and behind the windshield of the car. From bright sunlight accompanied by intense, blinding glare, to overcast inclement conditions, Drivewear lenses provides the appropriate visual solution.   Drivewear lenses provide glare protection through polarization and enhance and protect vision through photochromics which respond to both visible and UV light. By combining the strengths of two important technologies in eyewear today we have developed the lens of tomorrow, Drivewear.
         
drivewear polarized eye glass lenses   drivewear polarized eye glass lenses   drivewear polarized eye glass lenses
         
Drivewear lenses feature a high efficiency polarizer never before found in such a high contrast, light color. This color was chosen and designed to maximize useful light reaching the eye in low light/ overcast conditions. This polarized film is active in every lighting condition to block blinding glare and improve visual acuity.    Drivewear is that it is the only photochromic lens to darken behind the windshield of a car. Exposed to visible light, the lens changes to a copper color, which many drivers find is the most comfortable color for driving. This Drivewear color was designed to both remove excess light and provide good traffic signal recognition.    Outdoors, Drivewear is activated by UV and visible light and deepens to a dark reddish-brown color which provides protection from bright light and blinding glare, and allows excellent colors and green recognition. Because green is the most common color in the natural landscape, it's a great visual experience to have these enhanced. 
         
drivewear polarized eye glass lenses   drivewear polarized eye glass lenses   drivewear polarized eye glass lenses

Polarized lenses are created by embedding and integrally bonding a thin piece of polarized film within the lens. The first thin film polarizers were invented by Edwin Land in 1928. A thin film (resembling kitchen plastic wrap) is dyed with dichroic materials, such as iodine crystals and special organic molecules. Stretching the film aligns these dichroic materials all in the same direction to form a preferred plane to absorb light. When hit by bright, blinding glare, these aligned molecules absorb (block) light in that preferred plane, filtering away the glare from the useful light signal. This absorption and filtering is illustrated in the figure below.
 
Polarized lenses - drivewear
 
UNIQUE NUPOLAR® TECHNOLOGY
Reduces blinding glare, even with a LIGHT polarizer

The polarization technology of Drivewear represents a significant breakthrough in the use of polarization. Typically, efficient polarization only occurs when there are large quantities of absorbers present - that is, when the lenses are dark. Drivewear lenses require a high efficiency polarizer that provides excellent polarizing properties never found before in such a high contrast, light color. This was achieved only by pushing polarized manufacturing technologies to new levels of exceptional performance and light transmittance.
 
Polarized lenses - drivewear 
 
When the photochromic molecule becomes exposed to an energy source (bright sunlight), a complex reaction occurs and changes chemical bonding and the shape of the molecule. What is unique about Drivewear is that this activation is initiated not only by ultra violet (UV) light, but also by visible light.
 
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John Shelswell
 
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Smarteyes! 310 8th St. Courtenay, BC V9N 1N3 Phone: (250) 871-8770

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