Prism device applied to periscope lens module and periscope lens module
US11460686B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 3, 2020 |
| Grant date | Oct 4, 2022 |
| Priority date | — |
| Expiry date | Aug 3, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/646
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Provided is a prism device applied to a periscope lens module. The prism device includes: a bearing frame; a supporting-restoring assembly; a prism; and shape memory alloy wires configured to drive the supporting-restoring assembly and the prism to rotate relative to the bearing frame. Two opposite sides of the bearing frame are each provided with limiting grooves, two opposite sides of the supporting-restoring assembly are each provided with limiting arms inserted into the limiting grooves in one-to-one correspondence; and each limiting arm and a corresponding limiting groove form a clearance fit in such a manner that the limiting arm is movable in the limiting groove. In the present invention, two opposite sides of the bearing frame are provided with limiting grooves, and limiting arms on the supporting-restoring assembly are inserted into the limiting grooves, thereby preventing the supporting-restoring assembly from escaping from the bearing frame during use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.