Additive manufacturing for transparent ophthalmic lens
US9969135B2 · kind B2 · utility
5Cited by
2References
31Claims
0Family size
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Key dates
| Filing date | Jul 31, 2013 |
| Grant date | May 15, 2018 |
| Priority date | — |
| Expiry date | Jul 31, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB33Y80/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.