Passive damping for optical image stabilization
US9810917B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 2, 2014 |
| Grant date | Nov 7, 2017 |
| Priority date | — |
| Expiry date | Jun 23, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49885
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Passive dampers (e.g., a viscoelastic material such as a silicon gel) may be applied at one or more locations within an actuator module between a moving component (an optics assembly) and a fixed component (e.g., a cover attached to a base). The passive dampers act to passively dampen the motion of the optics assembly on the XY plane within the actuator module during optical image stabilization (OIS) of the optics assembly when subjected to external excitation or disturbance, and may also provide Z (optical) axis damping and impact protection. Process control and automation manufacturing and assembly methods for an OIS voice coil motor (VCM) actuator module including passive dampers are described, as well as design elements that provide for the integrity and reliability of the passive dampers over the life cycle of the actuator module.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.