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:
Nov. 13, 2012
Filed:
Jul. 09, 2009
Lars Henriksen, Tønsberg, NO;
Thomas Spatscheck, Tjøme, NO;
Vladimir Kartashov, Horten, NO;
Jon Herman Ulvensøen, Åsgårdstrand, NO;
Lars Henriksen, Tønsberg, NO;
Thomas Spatscheck, Tjøme, NO;
Vladimir Kartashov, Horten, NO;
Jon Herman Ulvensøen, Åsgårdstrand, NO;
Polight AS, Horten, NO;
Abstract
The present invention provides thermal compensation for a lens assembly comprising a polymer lens body. Polymers do have different thermal expansion coefficients which makes it necessary to compensate for thermal expansions to keep optical characteristics of such lenses within specifications when used under different environmental conditions. Also, it is necessary to provide thermal compensation during manufacturing of such lenses due to high temperatures during manufacturing steps.