Optical driving mechanism
US11796348B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 10, 2019 |
| Grant date | Oct 24, 2023 |
| Priority date | — |
| Expiry date | Apr 10, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2205/0069
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical driving mechanism is provided, for driving an optical element, including: a fixed portion, a movable portion, a driving assembly and a position sensing assembly. The movable portion is movably connected to the fixed portion and includes a holder for sustaining the optical element. The driving assembly is configured to drive the movable portion to move relative to the fixed portion. The position sensing assembly is configured to sense a distance of the movable portion relative to the fixed portion, the position sensing assembly includes a sensing magnetic element and a sensor, wherein the sensing magnetic element is disposed on the movable portion and has a rectangular structure. A direction of a long axis of the rectangular structure extends in a direction that is perpendicular to the optical axis of the optical element, and the direction of the long axis is different from the optical axis direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.