Invention Grant
- Patent Title: Single vision lenses
- Patent Title (中): 单视镜片
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Application No.: US10052372Application Date: 2002-01-23
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Publication No.: US06902271B2Publication Date: 2005-06-07
- Inventor: Colin Maurice Perrott , Kevin Douglas O'Connor , Simon John Edwards , Eric F. Barkan , David H. Sklar
- Applicant: Colin Maurice Perrott , Kevin Douglas O'Connor , Simon John Edwards , Eric F. Barkan , David H. Sklar
- Applicant Address: AU Lonsdale
- Assignee: Sola International Holdings Ltd.
- Current Assignee: Sola International Holdings Ltd.
- Current Assignee Address: AU Lonsdale
- Agency: Burns, Doane, Swecker & Mathis, L.L.P.
- Priority: AUPN8806 19960321; AUPO4137 19961211
- Main IPC: A61F9/02
- IPC: A61F9/02 ; G02C7/02

Abstract:
Optical lens element with a prescription zone, suitable for use in wraparound or protective type eyewear. The element may also include a peripheral vision zone, with no prismatic jump between the zones. Design methods for the prescription zone include temporally rotating a prescription section about a vertical axis through the optical center thereof, and/or decentring the optical axis of said prescription section relative to the geometric axis thereof, and providing partial surface correction for astigmatic and/or mean power errors. For prescription powers in the range −6.0 to +6.0 diopters with 0 to 3 cyl, the optical lens element may be designed such that its front surface can be mounted in a frame of constant curvature of at least 5.0 diopters, with its back surface providing good clearance from temples and eyelashes. Applications include ophthalmic sunglass lenses.
Public/Granted literature
- US20020118337A1 Single vision lenses Public/Granted day:2002-08-29
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