Photochromic Composite Lens
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United States of America Patent
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Issued Date -
Feb 19, 2015
app pub date -
Aug 19, 2013
filing date -
Aug 19, 2013
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Abandoned
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Abstract
The present invention provides a photochromic composite lens which includes a penetration layer located exteriorly, and a blocking layer located interiorly, and a transition layer located between the penetration layer and the blocking layer. A thickness of the transition layer can be adjusted in view of the field requirements. In addition, functional coatings, such as abrasive-proof coating, fog-free coating, refraction free coating, and other functional coatings can be coated onto the penetration layer and the blocking layer, respectively. With this, the photochromic composite lens can be configured by polycarbonate lens or lens made from other material. Scratches over the surfaces will not impair the intended function of transition.
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