Invention Grant
- Patent Title: Contact lens
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Application No.: US15376859Application Date: 2016-12-13
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Publication No.: US10698233B2Publication Date: 2020-06-30
- Inventor: En-Ping Lin , Wei-Yuan Chen , Chun-Hung Teng
- Applicant: LARGAN MEDICAL CO., LTD.
- Applicant Address: TW Taichung
- Assignee: LARGAN MEDICAL CO., LTD.
- Current Assignee: LARGAN MEDICAL CO., LTD.
- Current Assignee Address: TW Taichung
- Agency: McClure, Qualey & Rodack, LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@63d836b2
- Main IPC: G02C7/04
- IPC: G02C7/04 ; G02B1/04 ; C08F220/10 ; C08F230/08 ; C08F220/20 ; C08K5/053

Abstract:
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.
Public/Granted literature
- US20170192251A1 CONTACT LENS Public/Granted day:2017-07-06
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