FDM 3D printing of optical lens with high clarity and mechanical strength
US12226951B2 · kind B2 · utility
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1References
7Claims
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Assignee
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Key dates
| Filing date | Jul 1, 2020 |
| Grant date | Feb 18, 2025 |
| Priority date | — |
| Expiry date | Dec 9, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB33Y80/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The disclosure includes core-shell filament composition for additive manufacturing of ophthalmic lenses and ophthalmic lens components. The disclosure also includes a set of criteria for selecting core and shell thermoplastic combinations that exhibit high optical clarity, improved filament inter-strand diffusion, high inter-strand adhesion, and improved manufactured part strength when used in an additive manufacturing method like fused deposition modelling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.