发明申请
- 专利标题: A METHOD FOR PROVIDING A SELECTION CHART OF NON-PRESCRIPTION OPHTHALMIC LENSES
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申请号: US16461665申请日: 2017-10-26
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公开(公告)号: US20190353927A1公开(公告)日: 2019-11-21
- 发明人: Asma LAKHOUA , Fabien MURADORE , Sebastien FRICKER
- 申请人: Essilor International
- 申请人地址: FR Charenton-Le-Pont
- 专利权人: Essilor International
- 当前专利权人: Essilor International
- 当前专利权人地址: FR Charenton-Le-Pont
- 优先权: EP16306583.2 20161130
- 国际申请: PCT/EP2017/077422 WO 20171026
- 主分类号: G02C7/02
- IPC分类号: G02C7/02
摘要:
A method is provided for providing a selection chart of non-prescription ophthalmic lenses. The method comprises providing at least one optical performance parameter threshold (OPPT) associated to an optical performance parameter (OPP); choosing the selection criterion (SC) among the selection criteria of the list consisting of: lens base curve; lens pantoscopic angle; and lens wrap angle; choosing a selection criterion range (SCR) for each of the chosen selection criterion; calculating selection domains (SD) defined by sub-ranges for each of the chosen SC within the SCR so as to determine and associate in each SD a single non-prescription ophthalmic lens with a spherical front surface, a complex back surface and a lens base curve. All the chosen OPPs are equal or less to the OPPT for all values of the SC within the SD associated to the single non-prescription ophthalmic lens.
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