Fresnel Lens Patents (Class 623/6.25)
  • Patent number: 10792148
    Abstract: An intraocular lens is provided. The intraocular lens includes an optical part and an adjoining haptic part. The optical part includes an optically imaging element and a telescope, the entire telescope being integrally formed and being integrated in the optical imaging element. The optically imaging element has a convexly-curved front side and a concavely-curved rear side. Further, the optically imaging element is arranged as a single lens system.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: October 6, 2020
    Assignee: Carl Zeiss Meditec AG
    Inventors: Mario Gerlach, Werner Fiala
  • Patent number: 9089421
    Abstract: A method and system provide an ophthalmic device. The ophthalmic device includes an ophthalmic lens having an anterior surface, a posterior surface, an optic axis and at least one diffractive grating pattern. The diffractive grating pattern(s) are disposed on at least one of the anterior surface and the posterior surface. The diffractive grating pattern(s) includes zones corresponding to distance ranges from the optic axis. Each of the zones has a plurality of echelettes having a radius of curvature corresponding to a focal length. The radius of curvature for each of at least a portion of the zones is different from the radius of curvature for another of the zones.
    Type: Grant
    Filed: December 3, 2013
    Date of Patent: July 28, 2015
    Assignee: NOVARTIS AG
    Inventors: Daniel Robert Carson, Myoung-Taek Choi, Shinwook Lee
  • Patent number: 8529058
    Abstract: In one aspect, the present invention provides a method for correcting vision that employs two lenses, at least one of which is a multifocal lens, with different focusing characteristics for use in the two eyes of the patient. The visual performance of each lens (e.g., visual contrast or acuity) is selected in accordance with a predefined relation so as to optimize the binocular visual performance provided by the combination of the lenses.
    Type: Grant
    Filed: January 11, 2008
    Date of Patent: September 10, 2013
    Assignee: Novartis AG
    Inventors: Xin Hong, Mutlu Karakelle, Xiaoxiao Zhang, Arthur Bradley
  • Publication number: 20130044289
    Abstract: An imaging lens unit is presented, comprising an imaging lens having a lens region defining an effective aperture, and a phase coder. The phase coder may be incorporated with or located close to the lens region. The phase coder defines a surface relief along the lens region formed by at least three phase patterns extending along the lens region. Each of the phase patterns differently affecting light components of one of at least three different wavelength ranges while substantially not affecting propagation of light components of other of said at least three wavelength ranges. The surface relief affects light propagation through the lens region to extend a depth of focus for at least one of said at least three wavelength ranges.
    Type: Application
    Filed: February 9, 2011
    Publication date: February 21, 2013
    Inventors: Zeev Zalevsky, Alex Zlotnik, Shai Ben-Yaish, Ofer Limon, Ido Raveh
  • Patent number: 8262728
    Abstract: An intraocular lens device that includes an intraocular lens optics that provides at least two powers of magnification one being near vision power and the other being distance vision power. The lens optics has surface modulations that are responsible for providing the near vision power. The zone structure provides an add power of over 6 diopters. The add power indicative of an extent that the near vision focusing power is greater than the distance vision focusing power.
    Type: Grant
    Filed: May 10, 2010
    Date of Patent: September 11, 2012
    Assignee: Novartis, AG
    Inventors: Xiaoxiao Zhang, Richard J. Mackool, Xin Hong, Michael A. Southard
  • Patent number: 8206442
    Abstract: The invention concerns an intraocular lens device which is used in particular for treatment of diseases of the central retina (macula) with retinal areas which are still healthy. The main principle of the invention at hand is that a lens device is provided for the redirection of the focal point from an area with impaired retinal function to a functioning area which comprises at least one convex lens element and several wedge-shaped recesses. Surprisingly it was found that a considerable reduction of the thickness of the lens device is thus achievable when several wedge-shaped recesses are provided.
    Type: Grant
    Filed: October 19, 2004
    Date of Patent: June 26, 2012
    Assignee: Philipps-Universität Marburg
    Inventors: Saadettin Sel, Jörg Heber
  • Publication number: 20100094413
    Abstract: An accommodating intraocular lens with variable optical power, comprising at least two optical elements, at least one of which is movable relative to the other in a direction perpendicular to the optical axis, wherein the optical elements form a lens with different optical power at different relative positions of the optical elements. At least two of the optical elements of the lens comprise at least one additional optical correction surface, which correction surfaces are adapted for simultaneous variable correction of one or more optical aberrations of the natural eye in which the degree of correction depends on the relative position of the optical elements.
    Type: Application
    Filed: December 13, 2007
    Publication date: April 15, 2010
    Applicant: AKKOLENS INTERNATIONAL B.V.
    Inventors: Michiel Christiaan Rombach, Aleksey Nikolaevich Simonov
  • Publication number: 20090182422
    Abstract: A thin foldable intraocular implant specifically configured for installation into the anterior chamber of a phakic or pseudophakic eye has broad positioning flaps that do not apply any substantial pressure against the wall of the eye. It can be rolled for insertion through a corneal incision as small as 2.75 millimeters. The implant is constituted by a two-layered resiliently flexible membrane having a corrective layer of about 50 to 130 microns and an overall thickness of about 150 to 530 microns, that vaults the iris without contacting it. The optic is constituted by a multi-order diffractive (MOD) structure, and is made of silicone, PMMA, hydrogel or hydrophobic acrylate.
    Type: Application
    Filed: December 27, 2007
    Publication date: July 16, 2009
    Inventors: Lee T. Nordan, G. Michael Morris
  • Publication number: 20080269887
    Abstract: An accommodating intraocular lens comprising an optic made from solid silicone and liquid silicone. The optic has a central anterior area or membrane that can vary in radius and thus charge power.
    Type: Application
    Filed: October 25, 2007
    Publication date: October 30, 2008
    Inventor: J. Stuart Cumming
  • Publication number: 20080269886
    Abstract: An IOL is disclosed that includes an anterior surface and a posterior surface disposed about an optical axis, where the posterior surface includes a central region extending to a peripheral region. Once the IOL is implanted in a patient's eye, the anterior surface and the central region of the posterior surface cooperatively form an image of a field of view on the retina and the peripheral region of the posterior surface directs at least some light rays incident thereon (e.g., via refraction by the anterior surface) to at least one retinal location offset from the image so as to inhibit dysphotopsia.
    Type: Application
    Filed: May 24, 2007
    Publication date: October 30, 2008
    Inventors: Michael J. Simpson, Dan Stanley, XiaoXiao Zhang, K. Scott Ellis
  • Publication number: 20080269885
    Abstract: An IOL is disclosed that includes an anterior surface and a posterior surface disposed about an optical axis, where the posterior surface includes a central region extending to a peripheral region. Once the IOL is implanted in a patient's eye, the anterior surface and the central region of the posterior surface cooperatively form an image of a field of view on the retina and the peripheral region of the posterior surface directs at least some light rays incident thereon (e.g., via refraction by the anterior surface) to at least one retinal location offset from the image so as to inhibit dysphotopsia.
    Type: Application
    Filed: April 30, 2007
    Publication date: October 30, 2008
    Inventors: Michael J. Simpson, K. Scott Ellis
  • Patent number: 7410500
    Abstract: An intraocular lens comprises, as one face thereof, a Fresnel prism. Such a lens can be used for the treatment of a macular condition requiring a change of focus, e.g. age-related macular degeneration.
    Type: Grant
    Filed: November 28, 2002
    Date of Patent: August 12, 2008
    Assignee: Rayner Intraocular Lenses Ltd
    Inventor: Charles Claoue
  • Patent number: 6921415
    Abstract: A deformable, artificial intraocular contact lens for implantation into the human eye to correct normal-vision problems. The lens may be positioned posteriorly from the iris, resting against the anterior surface of the posterior capsule's natural lens. Alternatively, the lens may be positioned in the anterior chamber of the eye. The implanted lens works in conjunction with the cornea and natural lens to provide proper vision, as a substitute for regular contact lens, spectacles, and radial keratotomy. The lens may be designed from a rigid or semi-rigid material. Due to the thinness of the structure, the lens may be rolled and inserted into the eye, minimizing both the length of the corneal incision and the stretching of the cornea.
    Type: Grant
    Filed: October 1, 2002
    Date of Patent: July 26, 2005
    Assignee: ThinOptX, Inc.
    Inventors: Wayne B. Callahan, Jeffrey S. Callahan
  • Patent number: 6835204
    Abstract: An intraocular lens with an optical lens part, which has a central lens area and at least one further annular lens area surrounding the central lens area, the central lens area and the at least one annular lens area forming at least one common focus and the annular lens area having concentric annular zones, in which the difference in pathlength between adjacent zones is an integral multiple of n=2 or more of the design wavelength.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: December 28, 2004
    Assignee: Acri.Tec Gesellschaft fur Ophtalmologische Produkte mbH
    Inventors: Wilhelm Stork, Christine F. Kreiner
  • Patent number: 6786928
    Abstract: This patent represents a deformable artificial intraocular lens for implantation into the human eye. The lens is used for implantation after cataract surgery. The lens optic consists of one smooth optical surface. The second optical surface is a series of annular concentric rings. The rings allow the lens to have extremely thin edges, which reduce glare, halos, and distortion. The extremely thin lens optic along with the thin haptic can be rolled, folded, or squeezed to pass through a small incision (<1.5 millimeters) in the cornea or sclera of the human eye. This lens represents a breakthrough in removal of mass from the lens. The ultra thin lens and haptic design allows the lens to move in the eye providing accommodation for the patient. The lens and haptic design reduces the radial forces on the eye to the point where the naturally occurring pressures in the eye move the lens thus providing accommodation.
    Type: Grant
    Filed: July 16, 2002
    Date of Patent: September 7, 2004
    Assignee: ThinOptX, Inc.
    Inventors: Wayne B. Callahan, Jeffery S. Callahan
  • Patent number: 6666887
    Abstract: An intraocular corrective lens, comprising an optical portion having a normal shape constructed of a material which is biologically compatible with the natural lens of the eye and for positioning anterior thereof, or in replacement thereof; said optical portion also having an anterior convex lenticular surface and a posterior surface, wherein said posterior surface comprises a central disk which is radially surrounded by a series of annular rings, said central disk and said series of annular rings forming a series of radial steps along said posterior surface; wherein said posterior surface and said anterior lenticular surface have a minimum separation of 0.025 mm and a maximum separation of 0.1 mm; the central disk being of one diopter power and at least one annular ring is of a second diopter power; and at least one anchor attached to said optical portion for anchoring said optical portion anteriorly to the natural lens of the eye.
    Type: Grant
    Filed: October 22, 2001
    Date of Patent: December 23, 2003
    Assignee: ThinOptX, Inc.
    Inventors: Wayne B. Callahan, Jeffery Scott Callahan
  • Publication number: 20030220687
    Abstract: A thin foldable intraocular implant specifically configured for installation into the anterior chamber of a phakic or pseudophakic eye has broad positioning flaps that do not apply any substantial pressure against the wall of the eye. It can be rolled for insertion through a corneal incision as small as 2.75 millimeters. The implant is constituted by a two-layered resiliently flexible membrane having a corrective layer of about 50 to 130 microns and an overall thickness of about 150 to 530 microns, that vaults the iris without contacting it. The optic is constituted by a multi-order diffractive (MOD) structure, and is made of silicone, PMMA, hydrogel or hydrophobic acrylate.
    Type: Application
    Filed: May 23, 2003
    Publication date: November 27, 2003
    Inventors: Lee T. Nordan, G. Michael Morris
  • Publication number: 20030199976
    Abstract: A narrow profile, glare reducing, posterior chamber intraocular lens comprises an optic having an anterior surface and a posterior surface and an optical axis. The posterior surface is formed having two adjacent peri-axial, stepped imaging zones, the two imaging zones having the substantially the same optical power. A transition zone between the two imaging zones preferably has a surface of continuous curvature shaped to reduce direct glare from light incident on the transition zone in an individual's eye in which the intraocular lens is implanted by internal reflection of direct light incident on the transition zone. Attachment members joined to the optic position the intraocular lens in an eye with the optical axis of the optic generally aligned with the optical axis of the eye. In variations, the transition zones are formed at the optic edge to minimize direct and indirect in the eye of an individual wearing the intraocular lens.
    Type: Application
    Filed: May 24, 2003
    Publication date: October 23, 2003
    Inventor: Valdemar Portney
  • Publication number: 20030187503
    Abstract: An intraocular implant for implantation into the interior of an eye is disclosed. The intraocular implant includes a body member, (the body member has an anterior surface and a posterior surface, and has optical properties,) and, at least one mirror, wherein the at least one mirror is contained within the body member.
    Type: Application
    Filed: March 29, 2002
    Publication date: October 2, 2003
    Applicant: ISAAC LIPSHITZ
    Inventors: Isaac Lipshitz, Haya Ruchvarger
  • Patent number: 6596026
    Abstract: An intraocular lens implant including a telescope body defining an optical path for light to pass therethrough, a positive lens and a negative lens attached to the telescope body, and mounting structure connected to the telescope body for mounting the implant in an eye, wherein the lenses abut against each other, and a distance between the positive lens and the negative lens is fixed and determined by the lenses abutting against each other.
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: July 22, 2003
    Assignee: Visioncare Ophthalmic Technologies, Inc.
    Inventors: Yosef Gross, Gideon Dotan, Isaac Lipshitz, Eli Aharoni
  • Patent number: 6596025
    Abstract: A narrow profile, glare reducing, refractive mono-focal intraocular lens is described that comprises an optic having an anterior surface and a posterior surface and an optical axis. One of the anterior and posterior surfaces is formed having two adjacent peri-axial, stepped imaging zones, the two imaging zones having the substantially the same optical power that is preferably outside the −5 to +5 diopter range. A transition zone between the two imaging zones preferably has a continuously variable surface curvature that reduces both indirect glare (caused by light refraction) and direct glare (caused by light diffraction) in an individual's eye in which the intraocular lens is implanted. The transition zone surface may alternatively be continuously curved or variably curved to reduce direct glare and indirect glare, respectively. Attachment members joined to the optic position the intraocular lens in an eye with the optical axis of the optic generally aligned with the optical axis of the eye.
    Type: Grant
    Filed: March 15, 2001
    Date of Patent: July 22, 2003
    Inventor: Valdemar Portney
  • Patent number: 6558419
    Abstract: An intraocular lens for inhibiting posterior capsular opacification, or secondary cataract, includes an optic having a periphery provided with at least two sharp edges which lie radially spaced from each other with respect to the optical axis of the lens optic.
    Type: Grant
    Filed: November 8, 2001
    Date of Patent: May 6, 2003
    Assignee: Bausch & Lomb Incorporated
    Inventors: Hai-Minh Pham, Tuan Anh Nguyen
  • Publication number: 20030065387
    Abstract: This patent represents a deformable artificial intraocular lens for implantation into the human eye. The lens is used for implantation after cataract surgery. The lens optic consists of one smooth optical surface. The second optical surface is a series of annular concentric rings. The rings allow the lens to have extremely thin edges, which reduce glare, halos, and distortion. The extremely thin lens optic along with the thin haptic can be rolled, folded, or squeezed to pass through a small incision (<1.5 millimeters) in the cornea or sclera of the human eye. This lens represents a breakthrough in removal of mass from the lens. The ultra thin lens and haptic design allows the lens to move in the eye providing accommodation for the patient. The lens and haptic design reduces the radial forces on the eye to the point where the naturally occurring pressures in the eye move the lens thus providing accommodation.
    Type: Application
    Filed: July 16, 2002
    Publication date: April 3, 2003
    Inventors: Wayne B. Callahan, Jeffery S. Callahan
  • Publication number: 20030033013
    Abstract: This patent represents a deformable artificial intraocular lens for implantation into the human eye. The lens is used for implantation after cataract surgery. The lens optic consists of one smooth optical surface. The second optical surface is a series of annular concentric rings. The rings allow the lens to have extremely thin edges, which reduce glare, halos, and distortion. The extremely thin lens optic along with the thin haptic can be rolled, folded, or squeezed to pass through a small incision (<1.5 millimeters) in the cornea or sclera of the human eye. This lens represents a breakthrough in removal of mass from the lens. The ultra thin lens and haptic design allows the lens to move in the eye providing accommodation for the patient. The lens and haptic design reduces the radial forces on the eye to the point where the naturally occurring pressures in the eye move the lens thus providing accommodation.
    Type: Application
    Filed: July 16, 2002
    Publication date: February 13, 2003
    Inventors: Wayne B. Callahan, Jeffery S. Callahan
  • Patent number: 6488707
    Abstract: A deformable, artificial intraocular contact lens for implantation into the human eye to correct normal-vision problems. The lens may be positioned posteriorly from the iris, resting against the anterior surface of the posterior capsule's natural lens. Alternatively, the lens may be positioned in the anterior chamber of the eye. The implanted lens works in conjunction with the cornea and natural lens to provide proper vision, as a substitute for regular contact lens, spectacles, and radial keratotomy. The lens may be designed from a rigid or semi-rigid material. Due to the thinness of the structure, the lens may be rolled and inserted into the eye, minimizing both the length of the corneal incision and the stretching of the cornea.
    Type: Grant
    Filed: November 16, 1999
    Date of Patent: December 3, 2002
    Assignee: ThinOptx, Inc.
    Inventors: Wayne B. Callahan, Jeffrey S. Callahan