Prism apparatus applied to periscope lens module and periscope lens module
US11327290B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 19, 2020 |
| Grant date | May 10, 2022 |
| Priority date | — |
| Expiry date | Aug 27, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/646
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Provided are a prism apparatus applied to a periscope lens module and a periscope lens module. The prism apparatus includes a bearing frame; a supporting-restoring assembly rotatably mounted on the bearing frame; a prism rotatable with the supporting-restoring assembly; and shape memory alloy wires configured to drive the supporting-restoring assembly and the prism to rotate with respect to the bearing frame. The supporting-restoring assembly includes a shape memory alloy wire-supporting frame rotatably connected to the bearing frame, and an elastic support member elastically connected to the bearing frame. The prism is mounted on the elastic support member. The shape memory alloy wires are connected between the bearing frame and the shape memory alloy wire-supporting frame. In the present invention, the shape memory alloy wires replace the electromagnetic drive and are used to drive the supporting-restoring assembly to rotate relative to the bearing frame, and the prism can automatically correct angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.