Prism device applied to periscope lens module and periscope lens module
US11487100B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2020 |
| Grant date | Nov 1, 2022 |
| Priority date | — |
| Expiry date | Feb 12, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B13/0015
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Provided is a prism device applied to a periscope lens module, including a bearing frame, a supporting-restoring assembly, a prism, and shape memory alloy wires. The shape memory alloy wires include first to fourth shape memory alloy wires. The first shape memory alloy wire and the second shape memory alloy wire are configured to drive the supporting-restoring assembly to drive the prism to rotate about a first rotation center axis. The third shape memory alloy wire and the fourth shape memory alloy wire are used to drive the supporting-restoring assembly to drive the prism to rotate about a second rotation center axis. The first rotation center axis is perpendicular to the second rotation center axis. The solutions of the present invention enable the prism to rotate towards two central axes that are perpendicular to each other, and has high stability and a simple structure, thereby achieving miniaturization.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.