Invention Grant
- Patent Title: Additive manufacturing for transparent ophthalmic lens
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Application No.: US14908653Application Date: 2013-07-31
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Publication No.: US09969135B2Publication Date: 2018-05-15
- Inventor: Robert A. Valeri , Steven Weber , John Biteau
- Applicant: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)
- Applicant Address: FR Charenton-le-Pont
- Assignee: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)
- Current Assignee: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)
- Current Assignee Address: FR Charenton-le-Pont
- Agency: Young & Thompson
- International Application: PCT/EP2013/002326 WO 20130731
- International Announcement: WO2015/014380 WO 20150205
- Main IPC: G02C7/02
- IPC: G02C7/02 ; B29D11/00 ; B29C67/00 ; B33Y10/00 ; B33Y80/00 ; B29L11/00

Abstract:
A method using additive manufacturing technologies and processes to manufacture a three-dimensional ophthalmic lens with a high management level of the homogeneity during the construction of the ophthalmic lens, through a control of two technical characteristics of voxel: the ability to modify their viscosity, and the ability to inter-diffuse together to provide a final homogeneous element. These two technical characteristics are managed by the choice of component(s) used to manufacture each voxel and by the kind of physical and/or chemical treatment apply to each of them.
Public/Granted literature
- US20160167323A1 ADDITIVE MANUFACTURING FOR TRANSPARENT OPHTHALMIC LENS Public/Granted day:2016-06-16
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