Patents by Inventor Siu Yin Lam

Siu Yin Lam has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20230341708
    Abstract: A spectacle lens can inhibit ametropia of the eyes and ensure full visibility. The spectacle lens comprises: first refraction areas and second refraction areas. Each first refraction area has a first refraction force that may be based on a prescription for correcting the ametropia of the eyes. Each second refraction area has a refraction force different from the first refraction force and may function to focus images on the positions except the retina of the eyes, to inhibit the development of the ametropia. Near the central part of the lens, the second refraction areas form a plurality of independent island-shaped areas, and the first refraction areas form the areas beyond the areas of the second refraction areas.
    Type: Application
    Filed: June 29, 2023
    Publication date: October 26, 2023
    Applicants: HOYA LENS THAILAND LTD., THE HONG KONG POLYTECHNIC UNIVERSITY
    Inventors: Chi Ho TO, Siu Yin LAM, Takashi HATANAKA, Yasutake MASUDA
  • Publication number: 20230273458
    Abstract: A technology for inhibition of myopia progression adapted to the RPR of the wearer is provided. A spectacle lens and related technology are provided that include a base area that causes a beam that enters through an object-side surface to exit through an eye-side surface and converge on a retina via the eye, and a plurality of defocus areas that each contact the base area and have a characteristic whereby a beam that passes through at least a portion of the defocus area is incident on the retina as a diverging ray, and, in not less than half of the plurality of defocus areas, at least one of a defocus power and a size of each defocus area is set, so as to compensate for a change in retinal spot size due to relative peripheral refraction (RPR) that depends on an eccentricity angle of the eye of the wearer.
    Type: Application
    Filed: July 14, 2021
    Publication date: August 31, 2023
    Applicants: HOYA LENS THAILAND LTD., THE HONG KONG POLYTECHNIC UNIVERSITY
    Inventors: Hua QI, Chi Ho TO, Siu Yin LAM
  • Patent number: 11726348
    Abstract: A spectacle lens can inhibit ametropia of the eyes and ensure full visibility. The spectacle lens comprises: first refraction areas and second refraction areas. Each first refraction area has a first refraction force that may be based on a prescription for correcting the ametropia of the eyes. Each second refraction area has a refraction force different from the first refraction force and may function to focus images on the positions except the retina of the eyes, to inhibit the development of the ametropia. Near the central part of the lens, the second refraction areas form a plurality of independent island-shaped areas, and the first refraction areas form the areas beyond the areas of the second refraction areas.
    Type: Grant
    Filed: June 21, 2022
    Date of Patent: August 15, 2023
    Assignees: THE HONG KONG POLYTECHNIC UNIVERSITY, HOYA LENS THAILAND LTD.
    Inventors: Chi Ho To, Siu Yin Lam, Takashi Hatanaka, Yasutake Masuda
  • Publication number: 20220404639
    Abstract: Provided herein is concentric annular multi-zone lens for retarding myopia progression in a human eye. The lens comprises: a plurality of correcting zones for forming a focused image on a retina of the human eye so as to correct refractive error of the human eye, wherein the correcting zone having a similar refractive power; a plurality of defocusing zones for forming images anterior to the retina so as to generate myopic defocus; and a defocusing power increasing region, in which refractive powers of defocusing zones being increasingly relatively positive towards the periphery of the lens so as to generate larger amplitude of the myopic defocus at the periphery of the retina; wherein the plurality of correcting zones and the plurality of defocusing zones are alternated in the concentric annular multi-zone lens.
    Type: Application
    Filed: September 8, 2020
    Publication date: December 22, 2022
    Inventors: Siu Yin LAM, Yan Yin TSE, Chi Ho TO
  • Publication number: 20220317477
    Abstract: A spectacle lens can inhibit ametropia of the eyes and ensure full visibility. The spectacle lens comprises: first refraction areas and second refraction areas. Each first refraction area has a first refraction force that may be based on a prescription for correcting the ametropia of the eyes. Each second refraction area has a refraction force different from the first refraction force and may function to focus images on the positions except the retina of the eyes, to inhibit the development of the ametropia. Near the central part of the lens, the second refraction areas form a plurality of independent island-shaped areas, and the first refraction areas form the areas beyond the areas of the second refraction areas.
    Type: Application
    Filed: June 21, 2022
    Publication date: October 6, 2022
    Inventors: Chi Ho TO, Siu Yin LAM, Takashi HATANAKA, Yasutake MASUDA
  • Patent number: 11397335
    Abstract: A spectacle lens can inhibit ametropia of the eyes and ensure full visibility. The spectacle lens comprises: first refraction areas and second refraction areas. Each first refraction area has a first refraction force that may be based on a prescription for correcting the ametropia of the eyes. Each second refraction area has a refraction force different from the first refraction force and may function to focus images on the positions except the retina of the eyes, to inhibit the development of the ametropia. Near the central part of the lens, the second refraction areas form a plurality of independent island-shaped areas, and the first refraction areas form the areas beyond the areas of the second refraction areas.
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: July 26, 2022
    Assignees: HOYA LENS THAILAND LTD., THE HONG KONG POLYTECHNIC UNIVERSITY
    Inventors: Chi Ho To, Siu Yin Lam, Takashi Hatanaka, Yasutake Masuda
  • Patent number: 11029540
    Abstract: A spectacle lens can inhibit ametropia of the eyes and ensure full visibility. The spectacle lens comprises: first refraction areas and second refraction areas. Each first refraction area has a first refraction force that may be based on a prescription for correcting the ametropia of the eyes. Each second refraction area has a refraction force different from the first refraction force and may function to focus images on the positions except the retina of the eyes, to inhibit the development of the ametropia. Near the central part of the lens, the second refraction areas form a plurality of independent island-shaped areas, and the first refraction areas form the areas beyond the areas of the second refraction areas.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: June 8, 2021
    Assignees: HOYA LENS THAILAND LTD., THE HONG KONG POLYTECHNIC UNIVERSITY
    Inventors: Chi Ho To, Siu Yin Lam, Takashi Hatanaka, Yasutake Masuda
  • Patent number: 10898407
    Abstract: An optical system including a layer having a reflective surface, the layer is adapted to provide a primary image and a secondary image. The secondary image is provided by a reflection of an object facing the reflective surface, and the primary and the secondary images are viewable by a viewer having a retina. The secondary image is focused in front of the retina to generate myopic defocus.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: January 26, 2021
    Assignee: THE HONG KONG POLYTECHNIC UNIVERSITY
    Inventors: Yan Yin Tse, Siu Yin Lam, Chi Ho To
  • Publication number: 20200159044
    Abstract: A spectacle lens can inhibit ametropia of the eyes and ensure full visibility. The spectacle lens comprises: first refraction areas and second refraction areas. Each first refraction area has a first refraction force that may be based on a prescription for correcting the ametropia of the eyes. Each second refraction area has a refraction force different from the first refraction force and may function to focus images on the positions except the retina of the eyes, to inhibit the development of the ametropia. Near the central part of the lens, the second refraction areas form a plurality of independent island-shaped areas, and the first refraction areas form the areas beyond the areas of the second refraction areas.
    Type: Application
    Filed: January 22, 2020
    Publication date: May 21, 2020
    Inventors: Chi Ho TO, Siu Yin LAM, Takashi HATANAKA, Yasutake MASUDA
  • Publication number: 20190212580
    Abstract: A spectacle lens can inhibit ametropia of the eyes and ensure full visibility. The spectacle lens comprises: first refraction areas and second refraction areas. Each first refraction area has a first refraction force that may be based on a prescription for correcting the ametropia of the eyes. Each second refraction area has a refraction force different from the first refraction force and may function to focus images on the positions except the retina of the eyes, to inhibit the development of the ametropia. Near the central part of the lens, the second refraction areas form a plurality of independent island-shaped areas, and the first refraction areas form the areas beyond the areas of the second refraction areas.
    Type: Application
    Filed: March 11, 2019
    Publication date: July 11, 2019
    Inventors: Chi Ho TO, Siu Yin LAM, Takashi HATANAKA, Yasutake MASUDA
  • Patent number: 10268050
    Abstract: A spectacle lens can inhibit ametropia of the eyes and ensure full visibility. The spectacle lens comprises: first refraction areas and second refraction areas. Each first refraction area has a first refraction force that may be based on a prescription for correcting the ametropia of the eyes. Each second refraction area has a refraction force different from the first refraction force and may function to focus images on the positions except the retina of the eyes, to inhibit the development of the ametropia. Near the central part of the lens, the second refraction areas form a plurality of independent island-shaped areas, and the first refraction areas form the areas beyond the areas of the second refraction areas.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: April 23, 2019
    Assignees: HOYA LENS THAILAND LTD., THE HONG KONG POLYTECHNIC UNIVERSITY
    Inventors: Chi Ho To, Siu Yin Lam, Takashi Hatanaka, Yasutake Masuda
  • Patent number: 10231897
    Abstract: A method for retarding or reversing progression of myopia of a viewer contains the steps of using an immersive or non-immersive device to create a plurality of image planes in the eye of the viewer. While an image plane is located on the retina, at least one image plane is not on the retina, thereby generating myopic defocus. Immersive and non-immersive devices and systems for such a method are also described.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: March 19, 2019
    Assignee: THE HONG KONG POLYTECHNIC UNIVERSITY
    Inventors: Yan Yin Tse, Siu Yin Lam, Chi Ho To
  • Publication number: 20180207051
    Abstract: An optical system including a layer having a reflective surface, the layer is adapted to provide a primary image and a secondary image. The secondary image is provided by a reflection of an object facing the reflective surface, and the primary and the secondary images are viewable by a viewer having a retina. The secondary image is focused in front of the retina to generate myopic defocus.
    Type: Application
    Filed: March 19, 2018
    Publication date: July 26, 2018
    Applicant: THE HONG KONG POLYTECHNIC UNIVERSITY
    Inventors: Yan Yin Tse, Siu Yin Lam, Chi Ho To
  • Publication number: 20180161231
    Abstract: A method for retarding or reversing progression of myopia of a viewer contains the steps of using an immersive or non-immersive device to create a plurality of image planes in the eye of the viewer. While an image plane is located on the retina, at least one image plane is not on the retina, thereby generating myopic defocus. Immersive and non-immersive devices and systems for such a method are also described.
    Type: Application
    Filed: December 11, 2017
    Publication date: June 14, 2018
    Applicant: THE HONG KONG POLYTECHNIC UNIVERSITY
    Inventors: Yan Yin Tse, Siu Yin Lam, Chi Ho To
  • Patent number: 9918894
    Abstract: A method for retarding or reversing progression of myopia of a viewer includes providing an object in front of the viewer; providing a transparent layer between the viewer and the object; and providing a primary image on the transparent layer, the transparent layer allows the viewer to see the object as a secondary image simultaneously with the primary image, wherein the secondary image is focused in front of the central region of the retina. A method for reducing hyperopia of a viewer includes providing an object in front of the viewer to provide a primary image; providing a transparent layer between the viewer and the object; providing a secondary image on the transparent layer, the transparent layer allows the viewer to see the primary image simultaneously with the secondary image, wherein the secondary image is focused behind the central region of the retina. Other systems are also described herein.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: March 20, 2018
    Inventors: Siu Yin Lam, Yan Yin Tse, Chi Ho To
  • Patent number: 9829722
    Abstract: A method for retarding the progression of myopia in a human eye, the method comprising: providing (41) a concentric annular multi-zone refractive lens including: at least one correcting zone of optical power for correcting (42) refractive error, and at least one defocusing zone for projecting (43) at least one non-homogenous defocused image in front of at least a part of retina to inhibit myopic eye growth, the at least one defocusing zone having at least one less negative power; wherein the correcting and defocusing zones are alternated (45) in the lens and the zones are connected (46) to each other through integrated progressive transition curves.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: November 28, 2017
    Assignee: The Hong Kong Polytechnic University
    Inventors: Yan Yin Tse, Chi Ho To, Siu Yin Lam
  • Publication number: 20170131567
    Abstract: A spectacle lens can inhibit ametropia of the eyes and ensure full visibility. The spectacle lens comprises: first refraction areas and second refraction areas. Each first refraction area has a first refraction force that may be based on a prescription for correcting the ametropia of the eyes. Each second refraction area has a refraction force different from the first refraction force and may function to focus images on the positions except the retina of the eyes, to inhibit the development of the ametropia. Near the central part of the lens, the second refraction areas form a plurality of independent island-shaped areas, and the first refraction areas form the areas beyond the areas of the second refraction areas.
    Type: Application
    Filed: November 6, 2015
    Publication date: May 11, 2017
    Inventors: Chi Ho TO, Siu Yin LAM, Takashi HATANAKA, Yasutake MASUDA
  • Publication number: 20160143801
    Abstract: A method for retarding or reversing progression of myopia of a viewer includes providing an object in front of the viewer; providing a transparent layer between the viewer and the object; and providing a primary image on the transparent layer, the transparent layer allows the viewer to see the object as a secondary image simultaneously with the primary image, wherein the secondary image is focused in front of the central region of the retina. A method for reducing hyperopia of a viewer includes providing an object in front of the viewer to provide a primary image; providing a transparent layer between the viewer and the object; providing a secondary image on the transparent layer, the transparent layer allows the viewer to see the primary image simultaneously with the secondary image, wherein the secondary image is focused behind the central region of the retina. Other systems are also described herein.
    Type: Application
    Filed: January 28, 2016
    Publication date: May 26, 2016
    Applicant: The Hong Kong Polytechnic University
    Inventors: Siu Yin Lam, Yan Yin Tse, Chi Ho To
  • Publication number: 20150109574
    Abstract: A method for retarding the progression of myopia in a human eye, the method comprising: providing (41) a concentric annular multi-zone refractive lens including: at least one correcting zone of optical power for correcting (42) refractive error, and at least one defocusing zone for projecting (43) at least one non-homogenous defocused image in front of at least a part of retina to inhibit myopic eye growth, the at least one defocusing zone having at least one less negative power; wherein the correcting and defocusing zones are alternated (45) in the lens and the zones are connected (46) to each other through integrated progressive transition curves.
    Type: Application
    Filed: December 23, 2014
    Publication date: April 23, 2015
    Inventors: Yan Yin TSE, Chi Ho TO, Siu Yin LAM
  • Patent number: RE47006
    Abstract: A method for treating progression of a refractive disorder in a human eye. The method includes the steps of producing a first image on a retina of the human eye and producing a second image to generate a defocus.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: August 28, 2018
    Assignee: The Hong Kong Polytechnic University
    Inventors: Chi Ho To, Siu Yin Lam, Yan Yin Tse