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HARD RESIN
INDEX
1.50  

LAYOUT
• Special alignment holes have been provided for identification of the 0-180 axis.
• These round holes take the place of the notches or ink lines present on our NuPolar® products.

SURFACING / FINING / POLISHING
• Drivewear is manufactured from a unique resin formulated to promote the activity level of the visible photochromic dyes. It is recommended to process these lenses like standard hard resin/ CR-39 materials. The stock removal rate will be similar to standard hard resin products.
• The target for finished lens minimum thickness should be 2.2mm.

EDGING / GLAZING
• Standard hard resin edging techniques should be utilized on Drivewear.
• Use care to insure that the lens is edged to the proper size for each frame; over-size lenses may chip if forced into the frame.
• A slight front side safety bevel is also recommended.
• Do not over-tighten into frame. This could cause stress or chipping in the lens.

GROOVING
• The polarized film is positioned about 0.7 mm from the front surface. Special care should be taken not to locate the groove in this area; place the groove toward the back surface of the lens.
• Plano and low power product should be processed to a minimum 2.5 mm edge thickness.
• Avoid over-tightening the liner string.
• Do not over-size the lens.

TINTING
• Tinting is not recommended as the product darkens considerably outside.
Additional tint will reduce outdoor transmission to possibly dangerous levels.

AR COATING
• Drivewear is compatible with most anti-reflective coatings.

MIRROR COATINGS
• Mirror coatings are not recommended as they will reduce the activity of the photochromic dyes.
POLYCARBONATE
INDEX
1.586  

LAYOUT
• Special ink markings have been provided for identification of the 0-180 axis.
• These ink lines are similar to markings present on our NuPolar® products.

SURFACING / FINING / POLISHING
• It is recommended to process DriveWear® polycarbonate like our NuPolar® polycarbonate material. The stock removal rate will be similar to standard polycarbonate products.
• The target for finished lens minimum thickness should be 1.7mm.

EDGING / GLAZING
• Standard polycarbonate edging techniques should be utilized on Drivewear.
• Ensure proper steps are taken so as not to flex the lens during edging and de-blocking.
• Use edging blocks that best match the base curve of the convex surface.
• If possible use a medium speed or fragile cycle during the edging process which will reduce the edger head pressure and feed rate.
• Use care to insure that the lens is edged to the proper size for each frame; over- size lenses may cause unwanted stress.

TINTING
• Tinting is not recommended as the product darkens considerably outside.
• Additional tint will reduce outdoor transmission to possibly dangerous levels.

AR COATING
• Drivewear is compatible with most anti-reflective coatings.

MIRROR COATINGS
• Mirror coatings are not recommended as they will reduce the activity of the photochromic dyes.


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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