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:
Sep. 07, 2010
Filed:
Nov. 30, 2007
Wayne H. Knox, Pittsford, NY (US);
LI Ding, Rochester, NY (US);
Jay F. Kunzler, Canandaigua, NY (US);
Dharmendra Jani, Fairport, NY (US);
Candido D. Pinto, Penfield, NY (US);
Wayne H. Knox, Pittsford, NY (US);
Li Ding, Rochester, NY (US);
Jay F. Kunzler, Canandaigua, NY (US);
Dharmendra Jani, Fairport, NY (US);
Candido D. Pinto, Penfield, NY (US);
Bausch & Lomb Incorporated, Rochester, NY (US);
University of Rochester, Rochester, NY (US);
Abstract
A method for modifying the refractive index of an optical, polymeric material. The method comprises irradiating select regions of the optical, polymeric material with a focused, visible or near-IR laser having a pulse energy from 0.05 nJ to 1000 nJ. The irradiation results in the formation of refractive optical structures, characterized by a change in refractive index, exhibit little or no scattering loss, and exhibit no significant differences in the Raman spectrum with respect to the non-irradiated optical, polymeric material. The method can be used to modify the refractive index of an intraocular lens following the surgical implantation of the intraocular lens in a human eye. The invention is also directed to an optical device comprising refractive optical structures, wherein the refractive structures are characterized by a change in refractive index, exhibit little or no scattering loss, and exhibit no significant differences in the Raman spectrum with respect to the non-irradiated optical, polymeric material.