Device for adhesively blocking a semi-finished optical element
US12233503B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2018 |
| Grant date | Feb 25, 2025 |
| Priority date | — |
| Expiry date | Jun 21, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24B9/146
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A blocking device includes a support member configured for providing a rigid support to the semi-finished optical element, the support member including a support element made of a shape-memory material having a rigid state below a predetermined temperature and a plastic state above the predetermined temperature, and assuming in the absence of external forces a predetermined memory shape when heated above the predetermined temperature, the support member having a contact face onto which the first face of the optical element is to be applied, the contact face of the support member being a surface of the support element, the shape-memory material being configured for having adherence properties with respect to the first face of the optical element, the adherence properties being sufficient for attaching the first face of the optical element to the contact face of the support element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.