The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 15, 2009
Filed:
Mar. 26, 2004
Applicants:
Graziano Marusi, Parma, IT;
Federico Menta, Parma, IT;
Paolo Baiocchi, Parma, IT;
Inventors:
Assignee:
Intercast USA, Inc., Plymouth, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 1/10 (2006.01); F21V 9/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A multi-layer thin film is provided preferably for use with photochromic lenses, wherein the thin film comprises a plurality of layers, preferably including dielectric layers, selected and arranged so as to reflect less than about 6 percent of the UVA rays in a range of about 315 to 400 nm, more preferably about 350 to 380 nm. The thin film preferably has an activation value greater than 25%.