Novartis Ag

William Jordan Hall

Yeming Gu

Deborah Jean Mulcahy

Yongxing Qiu

Roger Biel

Robert Carey Tucker

Peter Hagmann

Bernhard Seiferling

Joseph Michael Lindacher

Axel Heinrich

Günter Lässig

Courtney Flem Morgan

Gabriela Cocora

Uwe Haken

Daryl Reece

Honghui Lu

Nelson David Baity

Carlton Pope

Rebeca Kyker Bowden

Benjamin David Sullivan

Gilberto Hernandez

Donald G McKillop

There is described a process for manufacturing an ophthalmic lens and an apparatus for forming an ophthalmic lens, in particular a silicone hydrogel contact lens, wherein in a mold assembly a first and a second mold half () are first arranged in an intermediate closed position in which the mold surfaces of the two mold halves are spaced apart from each other at a distance increase (d1) of preferably 1 to 100 &#x3bc;m relative to a final distance (d0) in a final closed position, and wherein, during curing of the lens forming material (), the mold surfaces () of the mold halves () are actively or passively moved or moving from the intermediate closed position to the final closed position, where the distance increase (d1) is 0.

Process for manufacturing an ophthalmic lens

A method and system to provide for increased signal intensity and improved signal quality in Fourier-domain optical coherence tomography (FDOCT) by capturing the real and virtual images of an object being imaged by FDOCT in sequence or consecutively.

Combination of mirror images to improve signal quality for contact lenses

This invention relates to an apparatus for measuring a sample contact lens. In particular, the present invention has a housing to hold a sample contact lens to be measured, one or more movement stages connected to the housing, and an interferometer.

Coherent and non-coherent interferometry with cold mirror for contact lens thickness measurement

Described herein are methods for imaging ocular devices. The methods generally involve (a) applying a scattering agent to the ocular device; and (b) imaging the ocular device using optical coherence tomography (OCT). The methods described herein provide useful structural information about the surface of the device with high sensitivity.

Methods for imaging ocular devices using optical coherence tomography

The invention relates to an apparatus and method for non-contact/non-destructive measurement of the geometry of molded ophthalmic lenses and the precision molds and tooling used in the manufacture of the ophthalmic lenses. In particular the present system uses micro computed tomography to measure the geometries.

Device and method for non-contact scanning of contact lens and contact lens mold geometry

The present invention relates to a non-contact/non-destructive method and apparatus for measuring the thickness of an ophthalmic lens. The present invention also provides a method for inspecting or measuring the base curve of a lens.

Apparatus and method for detecting lens thickness

The present invention provides a method for converting a desired lens design to a geometry of a contact lens, preferably a customized contact lens or a contact lens having a complex surface design, to be produced in a computer-controlled manufacturing system. The method comprises: providing a lens design of a contact lens having a central axis, an anterior surface and an opposite posterior surface; projecting a predetermined number of points within a predetermined surface tolerance onto a surface of the lens design along each of a desired number of evenly-spaced semi-diameter spokes, each spoke radiating outwardly from the central axis; and for each of the spokes, generating a semi-meridian which is continuous in first derivative and includes a series of arcs and optionally straight lines, wherein each arc is defined by fitting at least three consecutive points into a spherical mathematical function within a desired concentricity tolerance, wherein each of the straight lines is obtained by connecting at least three consecutive points.

Method of manufacturing a contact lens

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Atlanta, GA, United States of America

William Jordan Hall