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:
Jan. 28, 2020
Filed:
Mar. 01, 2013
University of Rochester, Rochester, NY (US);
Wayne H. Knox, Pittsford, NY (US);
Li Ding, Fremont, CA (US);
Jay F. Kunzler, Canandaigua, NY (US);
Dharmendra M. Jani, Keller, TX (US);
University of Rochester, Rochester, NY (US);
Abstract
A laser system for modifying the index of refraction of an optical hydrogel material. The laser system comprises a computer program to determine the position and shape of refractive structures to be written into the optical hydrogel material to correct a patient's vision, and a focused laser that generates laser light having a wavelength of from 400 nm to 900 nm, and which operates with an average power of 10 mW to 1000 mW to produce a pulse energy from 0.05 nJ to 1000 nJ with a peak intensity at focus of greater than 10W/cm. The refractive structures exhibit a change in the index of refraction of 0.01 to 0.06 in the optical hydrogel material.