Variable aperture device, camera device and electronic apparatus
US11016364B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2020 |
| Grant date | May 25, 2021 |
| Priority date | — |
| Expiry date | Feb 26, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2205/0076
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A variable aperture device is described that includes a casing, a base with a light transmission hole, conductive terminals on the base, a terminal connecting portion, a shape memory metal wire, a movable portion, and a driven portion for forming an aperture together with the movable portion. One end of the shape memory metal wire is connected to the terminal connecting portion and the movable portion is connected to the base via a first rotating shaft. A side of the movable portion far from the light transmission hole around the first rotating shaft is connected to other end of the shape memory metal wire. A side of the movable portion near the light transmission hole around the first rotating shaft is connected to an elastic structure of the terminal connecting portion and the terminal connecting portion is attached to the conductive terminal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.