Lens casting with deformable molds
US11613090B1 · kind B1 · utility
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4References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 28, 2020 |
| Grant date | Mar 28, 2023 |
| Priority date | — |
| Expiry date | Apr 9, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29D11/0099
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A casting method involves providing a precursor to a mold that includes a deformable surface overlying a chamber, shaping the deformable surface according to a surface profile by adjusting a fluid pressure within the chamber and driving one or more actuators that are configured to distort the deformable surface, and solidifying the precursor while the deformable surface is shaped according to the surface profile to form an optical element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.