The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 07, 2021
Filed:
Apr. 22, 2019
Unicon Optical Co., Ltd., Hsinchu County, TW;
Ji-Yu Lin, Hsinchu County, TW;
Hsu-Kuei Hsiao, Hsinchu County, TW;
Ting-Hsuan Lin, Hsinchu County, TW;
UNICON OPTICAL CO., LTD., Hsinchu County, TW;
Abstract
The present invention provides a hydrophilic coating method for contact lens surface, firstly performing a hydration procedure Sto 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 Sand a second hydration process S. A contact lensobtained 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, thereby providing the user with good comfort when wearing.