Invention Grant
- Patent Title: Ophthalmic lens element
- Patent Title (中): 眼科镜片
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Application No.: US12441238Application Date: 2007-09-14
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Publication No.: US07992997B2Publication Date: 2011-08-09
- Inventor: Saulius Raymond Varnas
- Applicant: Saulius Raymond Varnas
- Applicant Address: AU Lonsdale
- Assignee: Carl Zeiss Vision Australia Holdings Limited
- Current Assignee: Carl Zeiss Vision Australia Holdings Limited
- Current Assignee Address: AU Lonsdale
- Agency: Buchanan Ingersoll & Rooney PC
- Priority: AU2006905101 20060915; AU2007901348 20070315
- International Application: PCT/AU2007/001365 WO 20070914
- International Announcement: WO2008/031166 WO 20080320
- Main IPC: G02C7/06
- IPC: G02C7/06

Abstract:
An ophthalmic lens element is disclosed. The, ophthalmic lens element includes a central region of low surface astigmatism and a peripheral region. The central region includes an upper viewing zone for providing a first power suitable for a wearer's distance vision tasks. The peripheral region has a positive power relative to the first power, and surrounds the central region. The peripheral region provides an optical correction for retarding or arresting myopia for a wearer and includes one or more regions of relatively higher surface astigmatism, a lower or near viewing zone of low surface astigmatism, and a corridor of low surface astigmatism having a surface power varying from that of the upper viewing zone to that of the lower viewing zone. The lower viewing zone is for a wearer's near vision tasks.
Public/Granted literature
- US20090310082A1 OPHTHALMIC LENS ELEMENT Public/Granted day:2009-12-17
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