Invention Grant
- Patent Title: Method of calculating an optical system of a progressive addition ophthalmic lens being arranged to output a supplementary image
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Application No.: US15302097Application Date: 2015-04-09
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Publication No.: US10247962B2Publication Date: 2019-04-02
- Inventor: Benjamin Rousseau , Sébastien Fricker
- Applicant: Essilor International
- Applicant Address: FR Charenton-le-Pont
- Assignee: Essilor International
- Current Assignee: Essilor International
- Current Assignee Address: FR Charenton-le-Pont
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: EP14305545 20140414
- International Application: PCT/EP2015/057723 WO 20150409
- International Announcement: WO2015/158601 WO 20151022
- Main IPC: G02C7/02
- IPC: G02C7/02 ; G02C7/08 ; G02B27/01 ; G02C7/06

Abstract:
A progressive ophthalmic spectacle lens (10) capable of correcting a wearer's ophthalmic vision and having a back surface (BS) and a front surface (FS), said lens comprising a light guide optical element arranged to output a supplementary image (SI) to the wearer through an exit surface (ES) of said light guide optical element, where the exit surface (ES), the back surface (BS) and an optical material located between said exit surface (ES) and said back surface (BS) form an optical device (OD) and wherein said optical device (OD) comprises an area of stabilized optical power.
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