Optical device and method for modifying the refractive index of an optical material
US10299909B2 · kind B2 · utility
1Cited by
11References
17Claims
0Family size
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Key dates
| Filing date | Mar 10, 2017 |
| Grant date | May 28, 2019 |
| Priority date | — |
| Expiry date | Aug 16, 2037 |
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.