Rotational ball-guided voice coil motor
US10488631B2 · kind B2 · utility
21Cited by
105References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2017 |
| Grant date | Nov 26, 2019 |
| Priority date | — |
| Expiry date | Aug 10, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K41/0358
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Actuators for rotating or tilting an optical element, for example an optical path folding element, comprising a voice coil motor (VCM) and a curved ball-guided mechanism operative to create a rotation or tilt movement of the optical element around a rotation axis upon actuation by the VCM. In some embodiments, an actuator includes two, first and second VCMs, and two curved ball-guided mechanisms operative to create rotation or tilt around respective first and second rotation axes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.