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US 2026/0219516 A1Published application
Contact lens with non-ordered surface pillars
AssigneeCooperVision International Limited
InventorsSourav SAHA, Matthew S. LINN, Tim WARREN, Lu JIANG
Life of this patent
Estimating the term…
Abstract
A contact lens having micropillars facilitate the spreading of liquid across the surface of the lens. The micropillars are present in at least the optic zone of the contact lens and are arranged to prevent diffraction of light through the optic zone.
Claims19
1-21. (canceled)
A contact lens comprising an optic zone, a peripheral zone, an anterior surface, and a posterior surface, said contact lens comprising a plurality of micropillars present in at least the optic zone of the anterior surface or the posterior surface or both the anterior surface and posterior surface,
- wherein the micropillars present in the optic zone are in a pseudorandom arrangement based on an array of a multi-sided geometric shape, wherein the contact lens exhibits a reduction in observable light diffraction at a wavelength between 400 nm to 700 nm compared to a control contact lens having the ordered arrangement of micropillars upon which the pseudorandom arrangement is based where each micropillar of the control lens can be said to lie on a vertex of a multi-sided geometric shape and each pair of adjacent micropillars can be said to form a side of the geometric shape,
- and wherein the plurality of micropillars has a density of 10,000 to 100,000,000 micropillars/mm2.
Dependencies are inferred from the claim text.