Method and apparatus for forming thermoformed ophthalmic insert devices
US9481124B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2013 |
| Grant date | Nov 1, 2016 |
| Priority date | — |
| Expiry date | Dec 13, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1075
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention describes methods for creating single-piece or multi-piece Rigid Inserts that may be included in an Ophthalmic Lenses or may comprise the Ophthalmic Lens, wherein the Rigid Insert may be formed through the processing of thin sheet material by thermoforming. Single piece annular Rigid Inserts may perform the function of providing a template for printed patterns to be included in Ophthalmic Lenses. Single piece full Rigid Inserts may perform the function of polarizing light or filtering light based on the properties of materials used to form the insert. Multi-piece Rigid Inserts may incorporate activation and energization elements. The present invention also includes apparatus for implementing such methods, as well as Ophthalmic Lenses and inserts formed with the Rigid Insert pieces that have been thermoformed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.