Patent · US Active

Optical material and method for modifying the refractive index

US8932352B2 · kind B2 · utility

14Cited by

31References

16Claims

0Family size

Assignee

University of Rochester · US

Inventors

Wayne H. Knox · Rochester, US
Li Ding · Hefei, CN
Jay F. Kunzler · Canandaigua, US
Dharmendra Jani · Keller, US

Key dates

Filing date	Nov 28, 2012
Grant date	Jan 13, 2015
Priority date	—
Expiry date	Nov 28, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG02C2202/14
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

An optical device comprising an optical hydrogel with select regions that have been irradiated with laser light having a pulse energy from 0.01 nJ to 50 nJ and a wavelength from 600 nm to 900 nm. The irradiated regions are characterized by a positive change in refractive index of from 0.01 to 0.06, and exhibit little or no scattering loss. The optical hydrogel is prepared with a hydrophilic monomer.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.