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LOW LIGHT /
OVERCAST CONDITIONS


HIGH CONTRAST GREEN/ YELLOW COLOR
Designed to maximize useful light information reaching the eye

POLARIZED to remove glare that would otherwise destroy vision in low light conditions

BEHIND THE WINDSHIELD
DAYLIGHT/ DRIVING CONDITIONS
COPPER COLOR Designed to remove excess light and to provide good traffic signal recognition; highlighting the reds and greens

POLARIZED to remove glare for safe driving vision

BRIGHT LIGHT /
OUTSIDE CONDITIONS

DARK REDDISH BROWN COLOR Designed for maximum filtration of excess light so that the eye does not get saturated

POLARIZED to provide maximum comfort in high
light conditions

THE DRIVEWEAR ENGINE

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.

One of the most unique and special attributes of 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 is not surprising, as 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. This color was designed for maximum filtration of excess light and to provide maximum protection from bright light and blinding glare. The brown color of the lens provides excellent color recognition with a special emphasis on highlighting greens. Because green is the most common color in the natural landscape, it’s a great visual experience to have these enhanced.

UNIQUE TRANSITIONS™ PHOTOCHROMIC TECHNOLOGY
Dynamic reaction to light, plus 100% blocking of UV A & B


In low lighting conditions, such as an overcast day, the photochromic molecules of a Transitions® Lens are in an uninitialized or “resting” state. In this state, the molecule allows all visible light to come through the lens. However, even in the resting state, Drivewear lenses block 100% UV A and UV B light. This is one advantage of being Activated by Transitions™.

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.

In the fully activated state, the photochromic molecules are folded into new configurations. These configurations absorb light more effectively than the resting state, and therefore, the lens looks dark. When the energy source is removed, the molecule will return to its original position and the lens lightens in color. With Transitions® Photochromic Technology, this process can repeat over and over for the lifetime of the lens.

UNIQUE NUPOLAR® TECHNOLOGY
Reduces blinding glare, even with a LIGHT polarizer

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 above. 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.

Drivewear’s combination of technologies and capabilities is so advanced and novel that multiple patents have been filed on this invention
(for instance, Younger Optics’ US patent #6926405, and WO 2005/001554).

Driving task
Learn more about what actually influences our senses during driving.
Explore Drivewear
Learn more about the behavior of the Drivewear lens and its benefits.
Genesis of Drivewear
The story of lens evolution from ancient times to the present.
 
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