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US 10,299,909 B2Granted
Optical device and method for modifying the refractive index of an optical material
AssigneeUniversity of Rochester
InventorsWayne H. Knox, Li Ding, Jay F. Kunzler, Dharmendra Jani
Life of this patent
Estimating the term…
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.
Claims17
An optical device comprising:
- a hydrated, optical, polymeric material in the form of one of a contact lens, an intraocular lens, a corneal inlay, a corneal ring, and a keratoprothesis;
- the hydrated, optical, polymeric material including selected regions that have been irradiated with laser light from a focused, visible or near-IR laser having a pulse energy from 0.05 nJ to 1000 nJ and a wavelength from 400 nm to 1200 nm, wherein the irradiated regions are characterized by a change in refractive index, and exhibit little or no scattering and wherein the selected regions of the hydrated, optical, polymeric material include a three-dimensional refractive structure.
Dependencies are inferred from the claim text.