Invention Grant
- Patent Title: Multi-focal lens
- Patent Title (中): 多焦镜头
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Application No.: US14346928Application Date: 2012-09-24
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Publication No.: US09256083B2Publication Date: 2016-02-09
- Inventor: Bernard Fresco
- Applicant: Ocular Technology Inc.
- Applicant Address: CA Toronto, ON
- Assignee: Ocular Technology Inc.
- Current Assignee: Ocular Technology Inc.
- Current Assignee Address: CA Toronto, ON
- Agency: Millman IP Inc.
- International Application: PCT/CA2012/000891 WO 20120924
- International Announcement: WO2013/040695 WO 20130328
- Main IPC: G02C7/00
- IPC: G02C7/00 ; G02C7/06

Abstract:
In one aspect, the invention is directed to a multifocal ophthalmic lens having a first region having first focal properties, and a second region having second focal properties and including a progressive region. The second region may further include, for example, a portion that is a reading region. The second region has two side edges and there are first and second transition regions between the first region and the side edges of the second region. The transition regions each have a width that is less than a selected width. This gives the lens designer more freedom to provide a wider second region without extending into lower left and lower right regions of the lens.
Public/Granted literature
- US20140226125A1 MULTI-FOCAL LENS Public/Granted day:2014-08-14
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