Patents Assigned to LARGAN MEDICAL CO., LTD.
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Patent number: 11898076Abstract: A contact lens includes at least one color changeable region, wherein the color changeable region includes at least one photoluminescence material. When a wavelength of the photoluminescence material having a maximum radiation intensity is WEmMx, an average transmittance in a wavelength range of 400 nm-700 nm of the color changeable region is T4070, a size of a total area of the color changeable region is AC, and a size of a total area of the contact lens is AL, certain conditions relating to WEmMx, T4070 and AC/AL are satisfied.Type: GrantFiled: November 11, 2022Date of Patent: February 13, 2024Assignee: LARGAN MEDICAL CO., LTD.Inventors: Wei-Yuan Chen, Po-Tsun Chen, Wei-Chun Chen, Chun-Hung Teng
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Patent number: 11867985Abstract: A contact lens includes a central region, an annular region and a peripheral region. The central region includes a central point of the contact lens. The annular region symmetrically surrounds the central region. The peripheral region symmetrically surrounds the annular region. The peripheral region includes at least one color pattern portion. The annular region includes at least one power of critical point.Type: GrantFiled: March 7, 2022Date of Patent: January 9, 2024Assignee: LARGAN MEDICAL CO., LTD.Inventors: En-Ping Lin, I-Wei Lai, Chun-Hung Teng
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Patent number: 11782294Abstract: A contact lens product includes a multifocal contact lens and a buffer solution. The multifocal contact lens is immersed in the buffer solution. The multifocal contact lens includes a central region and at least one annular region. The annular region concentrically surrounds the central region, and a diopter of the annular region is different from a diopter of the central region. The multifocal contact lens is made of silicone hydrogel or hydrogel. The annular region closest to a periphery of the multifocal contact lens is a first annular region.Type: GrantFiled: September 14, 2020Date of Patent: October 10, 2023Assignee: LARGAN MEDICAL CO., LTD.Inventors: En-Ping Lin, Wei-Yuan Chen, Chun-Hung Teng
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Patent number: 11530351Abstract: A contact lens includes at least one color changeable region, wherein the color changeable region includes at least one photoluminescence material. When a wavelength of the photoluminescence material having a maximum radiation intensity is WEmMx, an average transmittance in a wavelength range of 400 nm-700 nm of the color changeable region is T4070, a size of a total area of the color changeable region is AC, and a size of a total area of the contact lens is AL, certain conditions relating to WEmMx, T4070 and AC/AL are satisfied.Type: GrantFiled: February 19, 2020Date of Patent: December 20, 2022Assignee: LARGAN MEDICAL CO., LTD.Inventors: Wei-Yuan Chen, Po-Tsun Chen, Wei-Chun Chen, Chun-Hung Teng
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Patent number: 11467425Abstract: A contact lens product includes a multifocal contact lens and a buffer solution. The multifocal contact lens includes a central region and at least one annular region. The annular region concentrically surrounds the central region. A diopter of the annular region is different from a diopter of the central region. The multifocal contact lens is immersed in the buffer solution, and the buffer solution includes a cycloplegic agent.Type: GrantFiled: August 4, 2020Date of Patent: October 11, 2022Assignee: LARGAN MEDICAL CO., LTD.Inventors: En-Ping Lin, Wei-Yuan Chen, Chun-Hung Teng
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Patent number: 11440728Abstract: The present disclosure proposes a contact lens package. The contact lens package includes a first substrate, a contact lens, and a guard ring. The contact lens is disposed on the first substrate. The guard ring is disposed on the first substrate and surrounds the contact lens, wherein the guard ring is fixed on a side surface of the first substrate. The contact lens and the guard ring are surrounded and sealed in the first substrate.Type: GrantFiled: January 19, 2021Date of Patent: September 13, 2022Assignee: LARGAN MEDICAL CO., LTD.Inventor: Chen-Yi Huang
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Patent number: 11372267Abstract: A contact lens product includes a contact lens and a buffer solution. The contact lens is immersed in the buffer solution, and the buffer solution includes a cycloplegic agent.Type: GrantFiled: January 13, 2020Date of Patent: June 28, 2022Assignee: LARGAN MEDICAL CO., LTD.Inventors: En-Ping Lin, Wei-Yuan Chen, Chun-Hung Teng
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Patent number: 11300812Abstract: A contact lens includes a central region, an annular region and a peripheral region. The central region includes a central point of the contact lens. The annular region symmetrically surrounds the central region. The peripheral region symmetrically surrounds the annular region. The peripheral region includes at least one color pattern portion. The annular region includes at least one power of critical point.Type: GrantFiled: May 25, 2020Date of Patent: April 12, 2022Assignee: LARGAN MEDICAL CO., LTD.Inventors: En-Ping Lin, I-Wei Lai, Chun-Hung Teng
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Patent number: 10926944Abstract: The present disclosure proposes a contact lens package. The contact lens package includes a first substrate, a contact lens, and a guard ring. The contact lens is disposed on the first substrate. The guard ring is disposed on the first substrate and surrounds the contact lens, wherein the guard ring is fixed on a side surface of the first substrate. The contact lens and the guard ring are surrounded and sealed in the first substrate.Type: GrantFiled: January 12, 2018Date of Patent: February 23, 2021Assignee: LARGAN MEDICAL CO., LTD.Inventor: Chen-Yi Huang
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Patent number: 10845622Abstract: A contact lens product includes a multifocal contact lens and a buffer solution. The multifocal contact lens is immersed in the buffer solution. The multifocal contact lens includes a central region and at least one annular region. The annular region concentrically surrounds the central region, and a diopter of the annular region is different from a diopter of the central region. The multifocal contact lens is made of silicone hydrogel or hydrogel. The annular region closest to a periphery of the multifocal contact lens is a first annular region.Type: GrantFiled: June 19, 2019Date of Patent: November 24, 2020Assignee: LARGAN MEDICAL CO., LTD.Inventors: En-Ping Lin, Wei-Yuan Chen, Chun-Hung Teng
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Patent number: 10768445Abstract: A contact lens product includes a multifocal contact lens and a buffer solution. The multifocal contact lens includes a central region and at least one annular region. The annular region concentrically surrounds the central region. A diopter of the annular region is different from a diopter of the central region. The multifocal contact lens is immersed in the buffer solution, and the buffer solution includes a cycloplegic agent.Type: GrantFiled: August 1, 2019Date of Patent: September 8, 2020Assignee: LARGAN MEDICAL CO., LTD.Inventors: En-Ping Lin, Wei-Yuan Chen, Chun-Hung Teng
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Patent number: 10698233Abstract: A contact lens includes, in order from a center to a periphery, an optical zone and at least two structural zones. The optical zone includes a front surface and a back surface, wherein at least one of the front surface and the back surface is aspheric, and the optical zone provides a positive force or a negative force. The structural zones concentrically surround the optical zone, wherein one of the structural zones provides a positive force, and the other of the structural zones provides a negative force. A composition for manufacturing the contact lens includes at least two kinds of monomers, at least one kind of crosslinking agent, at least one kind of diluent and at least one kind of initiator.Type: GrantFiled: December 13, 2016Date of Patent: June 30, 2020Assignee: LARGAN MEDICAL CO., LTD.Inventors: En-Ping Lin, Wei-Yuan Chen, Chun-Hung Teng
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Patent number: 10698232Abstract: A contact lens includes a central region, an annular region and a peripheral region. The central region includes a central point of the contact lens. The annular region symmetrically surrounds the central region. The peripheral region symmetrically surrounds the annular region. The peripheral region includes at least one color pattern portion. The annular region includes at least one power of critical point.Type: GrantFiled: June 21, 2018Date of Patent: June 30, 2020Assignee: LARGAN MEDICAL CO., LTD.Inventors: En-Ping Lin, I-Wei Lai, Chun-Hung Teng
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Patent number: 10578889Abstract: A contact lens product includes a contact lens and a buffer solution. The contact lens is immersed in the buffer solution, and the buffer solution includes a cycloplegic agent.Type: GrantFiled: June 26, 2019Date of Patent: March 3, 2020Assignee: LARGAN MEDICAL CO., LTD.Inventors: En-Ping Lin, Wei-Yuan Chen, Chun-Hung Teng
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Patent number: 10416476Abstract: A contact lens product includes a multifocal contact lens and a buffer solution. The multifocal contact lens includes a central region and at least one annular region. The annular region concentrically surrounds the central region. A diopter of the annular region is different from a diopter of the central region. The multifocal contact lens is immersed in the buffer solution, and the buffer solution includes a cycloplegic agent.Type: GrantFiled: August 30, 2016Date of Patent: September 17, 2019Assignee: LARGAN MEDICAL CO., LTD.Inventors: En-Ping Lin, Wei-Yuan Chen, Chun-Hung Teng
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Patent number: 10371964Abstract: A contact lens product includes a multifocal contact lens and a buffer solution. The multifocal contact lens is immersed in the buffer solution. The multifocal contact lens includes a central region and at least one annular region. The annular region concentrically surrounds the central region, and a diopter of the annular region is different from a diopter of the central region. The multifocal contact lens is made of silicone hydrogel or hydrogel. The annular region closest to a periphery of the multifocal contact lens is a first annular region.Type: GrantFiled: September 2, 2016Date of Patent: August 6, 2019Assignee: LARGAN MEDICAL CO., LTD.Inventors: En-Ping Lin, Wei-Yuan Chen, Chun-Hung Teng
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Patent number: 10371966Abstract: A contact lens product includes a contact lens and a buffer solution. The contact lens is immersed in the buffer solution, and the buffer solution includes a cycloplegic agent.Type: GrantFiled: January 9, 2017Date of Patent: August 6, 2019Assignee: LARGAN MEDICAL CO., LTD.Inventors: En-Ping Lin, Wei-Yuan Chen, Chun-Hung Teng
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Patent number: 9358736Abstract: This invention provides a method of packaging and manufacturing a contact lens in a container, wherein the container comprises a central recess formed of a curved surface with a ring-shaped protruding portion surrounding the curved surface, the method comprising the steps of: providing the container; injecting a lens-forming monomer mixture into the central recess to form the contact lens along the curved surface of the central recess; combining the container and a hand-held section; pouring a solution into the container to immerse the contact lens in the container; and sealing the container with a lid for sealing the contact lens and the solution in the container; wherein the curved surface of the central recess has one or a plurality of continuous radii of curvature Rrecess less than a radius of curvature Rlens of the contact lens in its hydrous state.Type: GrantFiled: March 8, 2013Date of Patent: June 7, 2016Assignee: LARGAN MEDICAL CO., LTD.Inventors: Chung-Lin Wang, Chen-Yi Huang, Tsung-Lin Wu
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Patent number: 8783863Abstract: This invention provides a contact lens for myopia control comprising: an object-side surface comprising a central zone, a transition zone and a peripheral zone which are concentric and have different refractive power, at least one of the three zones being aspheric; and an image-side surface; wherein the central zone provides correction power to focus a foveal image on the retina, the peripheral zone provides a myopic defocus effect by generating a para-fovea image in front of the retina, and the transition zone with one or more focuses provides a refractive power in diopter (D) ranging from +0.25 D to +8.00 D.Type: GrantFiled: September 5, 2012Date of Patent: July 22, 2014Assignee: Largan Medical Co., Ltd.Inventor: Chung Lin Wang
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Patent number: D830555Type: GrantFiled: October 24, 2017Date of Patent: October 9, 2018Assignee: LARGAN MEDICAL CO., LTD.Inventors: Yi-Hsin Lin, Yu-Jen Chiu