Method for manufacturing a set of optical guide microstructures
US12345912B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 22, 2022 |
| Grant date | Jul 1, 2025 |
| Priority date | — |
| Expiry date | Aug 15, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0038
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A diamond turning station having a drum able to be rotated about an axis C and a diamond tip. A piece to be machined P is installed on the drum as follows: the piece to be machined P is offset by a distance D from the rotation axis of the drum; the piece to be machined P is placed so that there is a mean angle Theta between the axis C and a cutting profile corresponding to the active surfaces, the angle Theta being as follows: Theta=arccos (D/Ry), where Ry is a radius of curvature required in the long direction of the microstructures. Next, the diamond tip is moved along the cutting profile of the microstructures, while actuating the rotation of the drum, so as to machine all the microstructures on the surface of the piece to be machined P.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.