Astigmatic Correction Patents (Class 351/159.46)
  • Patent number: 11762130
    Abstract: The disclosed optical lens assemblies may include a deformable element, a structural support element, and a compliant interface material that is disposed between and couples at least a portion of the deformable element and the structural support element. The deformable element may, when deformed, alter an optical property of the optical lens assembly. The compliant interface material may be configured to compensate for a difference between a physical property of the deformable element and the structural support element. Related head-mounted displays and methods are also disclosed.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: September 19, 2023
    Assignee: Meta Platforms Technologies, LLC
    Inventors: Katherine Marie Smyth, John M. Cooke, Andrew John Ouderkirk
  • Patent number: 11472141
    Abstract: A method of manufacturing an ophthalmic lens, including: a step of providing a starting optical system (30) having a first optical function and a first main refractive index; a step of providing a transition layer (20) intended to be disposed between the starting optical system (30) and a complementary optical element (12) having a second main refractive index, the transition layer (20) aiming at reducing unwanted reflection caused by the mismatch between the first and the second main refractive index, the transition layer (20) having a transition optical function; and a step of additively manufacturing the complementary optical element (12) on the transition layer (20), the complementary optical element (12) having a second optical function, the second optical function being predetermined as a function of the first optical function and of the transition optical function.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: October 18, 2022
    Assignee: Essilor International
    Inventors: Jean-Marc Padiou, Mathieu Feuillade, Alexandre Gourraud, Loïc Quere, Olivier Roussel
  • Patent number: 9122073
    Abstract: A spectacle lens has a colored mark, a colored graphics image with a predeterminable color and brightness impression. The spectacle lens includes a lens body having a light-refracting effect and having a surface with an interference layer system arranged on the surface.
    Type: Grant
    Filed: July 11, 2013
    Date of Patent: September 1, 2015
    Assignee: Carl Zeiss Vision International GmbH
    Inventors: Frank Macionczyk, Simon Holtmann
  • Patent number: 8608312
    Abstract: The invention relates to a method for determining an aspherization layer for an ophthalmic lens for a wearer for whom a power and an astigmatism have been prescribed. The method can be used equally satisfactorily on a unifocal or a multifocal lens. The invention also extends to the method for determining an ophthalmic lens from an aspoherization layer obtained by the method. The invention improves the optical performance of lenses obtained from semi-finished lenses in which the complex surface is unknown.
    Type: Grant
    Filed: January 11, 2010
    Date of Patent: December 17, 2013
    Assignee: Essilor International (Compagnie Generale d' Optique)
    Inventors: Cyril Guilloux, Soazic Mousset
  • Patent number: 8573774
    Abstract: Aspects of the present invention provide an ophthalmic lens comprising at least one regressive and at least one non-regressive rotationally symmetric optical design element. The regressive and non-regressive optical design elements can be combined so as to form a desired optical power profile for the lens while simultaneously exploiting the different relative orientation of the astigmatic vectors of the constituent regressive and non-regressive design elements, thereby resulting in reduced unwanted astigmatism. The regressive and non-regressive rotationally symmetric optical design elements can be positioned on different lens surfaces and in optical communication or can be collapsed onto the same lens surface. The regressive and non-regressive rotationally symmetric optical design elements can each contribute to the total add power of an ophthalmic lens.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: November 5, 2013
    Assignee: PixelOptics
    Inventors: Amitava Gupta, Ronald Blum, Stefan Troller, Hans Jaeger, Julien Sauvet, Urban Schnell
  • Patent number: 8534832
    Abstract: Aspects of the present invention provide progressive addition lenses (PALs) and techniques for designing PALs that result in improved visual performance for the wearer. PALs of the present invention can have vision zones with widths that are more in line with the actual or functional sizes used by wearers. PALs of the present invention can also introduce controlled amounts of unwanted astigmatism into one or more vision zones. By allowing vision zones to include manageable levels of astigmatism, the resulting PAL can avoid the harsh build-up of astigmatism typically found in conventional PALs at the periphery of the channel and viewing zones. Further, PALs of the present invention can be designed using a merit function to achieve an optimized iterative design that accounts for astigmatism vector orientation and not simply astigmatism magnitude as is the case with conventional PAL design.
    Type: Grant
    Filed: August 2, 2010
    Date of Patent: September 17, 2013
    Assignee: PixelOptics
    Inventors: Amitava Gupta, Ronald D. Blum
  • Publication number: 20120281182
    Abstract: An intraocular lens for correcting or reducing the astigmatism of a cornea includes a pupil that is spatially divided into discrete zones, with each zone having a particular astigmatism magnitude and astigmatism orientation. In one embodiment, the zones all have the same astigmatism magnitude, which is equal and opposite the cornea astigmatism magnitude to within a particular tolerance, such as 0.25 diopters. In one embodiment, some or all of the zones all have different astigmatism orientations, with the angular separation between astigmatism orientations being on the order of the rotational misalignment tolerance of the lens to the cornea. The visual performance of such a lens deteriorates more slowly with rotational misalignment, when compared to a comparable lens having a uniform astigmatism orientation across its entire pupil, leading to more relaxed tolerances for a surgeon that implants the lens.
    Type: Application
    Filed: July 9, 2012
    Publication date: November 8, 2012
    Applicant: Abbott Medical Optics Inc.
    Inventor: Huawei Zhao
  • Publication number: 20120262668
    Abstract: Embodiments of the invention pertain to a method for producing a spectacle lens with optimal correction across the entire lens that take the patient's complete measured wavefront into account. Specific embodiments also consider one or more additional factors such as vertex distance, intermediate power, add power, segmental fitting height, pantoscopic tilt, and use conditions. The lens wavefront can be achieved by optimizing a corrected wavefront, where the corrected wavefront is the effect of the patient's measured wavefront and/or the lens wavefront. The optimization of the corrected wavefront can involve representing the measured wavefront and/or the lens wavefront on a grid. In an exemplary embodiment, the grid can lie in a plane. During the optimization, a subset of the grid can be used for the representation of the measured wavefront at a point on the grid so that the portions of the measured wavefront that contribute to the corrected wavefront at that point on the grid are taken into account.
    Type: Application
    Filed: April 14, 2011
    Publication date: October 18, 2012
    Applicant: Ophthonix, Inc.
    Inventors: Shawn McCarty, Jagdish M. Jethmalani