Patents Assigned to UNICON OPTICAL CO., LTD.
  • Patent number: 11194077
    Abstract: The present invention provides a hydrophilic coating method for contact lens surface, firstly performing a hydration procedure S1 to form a hydrated polymer from a non-hydrated polymer, then sequentially contacting the hydrated polymer with a first solution and a second solution containing a high molecular compound at a specific temperature between 50° C. and 70° C. to complete a first hydration process S2 and a second hydration process S3. A contact lens 1 obtained according to the above procedures has a contact angle ranging from about 30° to 65°, and proteins and lipids are not easily deposited on a surface of the contact lens 1, thereby providing the user with good comfort when wearing.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: December 7, 2021
    Assignee: UNICON OPTICAL CO., LTD.
    Inventors: Ji-Yu Lin, Hsu-Kuei Hsiao, Ting-Hsuan Lin
  • Patent number: 10953614
    Abstract: A moisturizing composition of a contact lens is disclosed in the present invention. A rinse agent (ex. TEOA) is applied for bonding a moisturizing stabilizer (ex. HPMC) and a compound of a hydrophilic cosolvent (ex. PEG) and a moisturizing additive (ex. HA). Hence, the solubility of the moisturizing additive and the aqueous solution can be improved via applying the hydrophilic cosolvent; the stability of the combination of the moisturizing stabilizer and the moisturizing additive can be improved via the structural and the chemical stabilities of the moisturizing stabilizer itself. Meanwhile, the moisturizing composition disclosed can be directly applied to the raw material of the conventional contact lens during manufacturing the high-moisturizing contact lenses.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: March 23, 2021
    Assignee: Unicon Optical Co., Ltd.
    Inventors: Ji-Yu Lin, Hsu-Kuei Hsiao, Jin-Kun Yeh
  • Patent number: 9341745
    Abstract: A 3D network-structured silicon-containing preploymer and a method for fabricating the same are disclosed. The method of the present invention undertakes a hydrolytic condensation/polymerization reaction of penta(alkanol)alkoxy disiloxane, a reactive silicon-containing polymer and a reactive hydrophilic monomer to form a silicon-containing preploymer featuring a 3D network structure and having superior mechanical strength. The method further undertakes a copolymerization reaction of the silicon-containing preploymer, a hydrophilic monomer and a silicon-containing hydrophobic monomer to fabricate a silicone hydrogel-containing mixture having high oxygen permeability and high hydrophilicity. The silicone hydrogel-containing mixture can be used to fabricate contact lenses that the users wear comfortably.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: May 17, 2016
    Assignee: Unicon Optical Co., Ltd.
    Inventors: Shih-Hong Chu, Hung-Hsuan Cheng
  • Publication number: 20150252194
    Abstract: A 3D network-structured silicon-containing preploymer and a method for fabricating the same are disclosed. The method of the present invention undertakes a hydrolytic condensation/polymerization reaction of TEOS, a reactive silicon-containing polymer and a reactive hydrophilic monomer to form a silicon-containing preploymer featuring a 3D network structure and having superior mechanical strength. The method further undertakes a copolymerization reaction of the silicon-containing preploymer, a hydrophilic monomer and a silicon-containing hydrophobic monomer to fabricate a silicone hydrogel-containing mixture having high oxygen permeability and high hydrophilicity. The silicone hydrogel-containing mixture can be used to fabricate contact lenses that the users wear comfortably.
    Type: Application
    Filed: March 10, 2014
    Publication date: September 10, 2015
    Applicant: UNICON OPTICAL CO., LTD.
    Inventors: SHIH-HONG CHU, HUNG-HSUAN CHENG
  • Publication number: 20090166905
    Abstract: A contact lens fabrication method of fabrication a contact lens by means of: pressing a male molding block of a supplementary tool into a cavity of a mold to squeeze a contact lens material into shape and to simultaneously cut off an excessive part of the contact lens material from a contact lens by means of a cut angle of sharp edge of the mold, and then curing the contact lens, and then separating the supplementary tool from the mold to have the contact lens be adhered to the surface of the male molding block, and then filling a buffer solution into the supplementary tool to have the contact lens be dipped in the buffer solution after quality examination of the contact lens, and then sealing a sealing film to the supplementary tool to form a finished contact lens product for sale.
    Type: Application
    Filed: January 2, 2008
    Publication date: July 2, 2009
    Applicant: UNICON OPTICAL CO., LTD.
    Inventor: Cheng-Hsiu Chen