Lens driving apparatus
US7990633B2 · kind B2 · utility
0Cited by
1References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2009 |
| Grant date | Aug 2, 2011 |
| Priority date | — |
| Expiry date | Jun 23, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B7/08
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In the lens driving apparatus having a sleeve, a support body (such as a yoke) that supports the sleeve via a spring member), coils attached to the sleeve, and magnets attached to the support body, the support body is provided with a yoke and a cover portion, the yoke being formed with a light-entrance window for collecting light reflected from a subject and the cover portion being attached to the inside of the light-entrance window; the cover portion, the spring member, and the magnets are arranged so that they are layered in this order from the light-entrance window, and the cover portion is formed of a non-magnetic material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.