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US 9,791,721 B2Granted
Ophthalmic lens, intraocular lens, and lens material
AssigneeHon Hai Precision Industry Co., Ltd.
InventorHsiu-Wen Chien
Life of this patent
Estimating the term…
Abstract
An ophthalmic lens includes a matrix and a natural yellow dye dispersed in the matrix. The natural yellow dye includes at least one of lutein and zeaxanthin.
Claims4
An ophthalmic lens comprising:
- a matrix;
- and
- a natural yellow dye dispersed in the matrix;
- wherein the natural yellow dye comprises both lutein and zeaxanthin each having a mass percentage of about 0.00005% to about 0.25% of a total mass of the ophthalmic lens.
1 more element
An intraocular lens comprising:
- a matrix;
- and
- a natural yellow dye dispersed in the matrix;
- wherein the natural yellow dye comprises both lutein and zeaxanthin each having a mass percentage of about 0.00005% to about 0.25% of a total mass of the ophthalmic lens.
1 more element
Dependencies are inferred from the claim text.