Inverse-movement-type voice coil actuating apparatus
US10892699B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2017 |
| Grant date | Jan 12, 2021 |
| Priority date | — |
| Expiry date | Jul 28, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2205/0069
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An inverse-movement-type voice coil actuating apparatus includes a case structure, a stationary lens module, and a movable image sensing and focusing assembly. The case structure has a case. The lens module is assembled in the case to define an optical axis. The image sensing and focusing assembly is received in the case and moves back and forth along the optical axis with respect to the lens module to focus. Thus, the path of the back-and-forth movement of the image sensing and focusing assembly can be ensured to remain consistent with the optical axis and the lens can be pre-screwed without dropping the dust during the assembly process to further increase the production yield.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.