LENSES WITH GRADED PHOTOCHROMIC, MOLDS AND METHODS OF MAKING SAME
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Aug 20, 2015
app pub date -
Feb 19, 2015
filing date -
Feb 20, 2014
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
Certain aspects of the invention are directed to a photochromic lens having a graded or variable tint, methods and molds of making the same. In one embodiment, the photochromic lens includes a lens element having a upper portion and a lower portion; and a UV-absorbing layer formed of a UV-absorbing material on a surface of the lens element, such that the UV-absorbing material is more concentrated at the lower portion of the lens element and less concentrated at the upper portion, thereby allowing more UV light to strike the photochromic at the upper portion of the lens element than at the lower portion. The lens element comprises a photochromic composition.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully