Blur correction apparatus
US6400902B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 10, 1999 |
| Grant date | Jun 4, 2002 |
| Priority date | — |
| Expiry date | Dec 10, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2217/005
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Blur correction apparatus for correcting blurring of an image photographed using a photographic optical system comprises a blur correction optical system acting to correct image blurring during photographing, a blur correction drive section for electromagnetically driving the blur correction optical system, and a lock member for locking the blur correction optical system. The blur correction drive section has a permanent magnet, one surface of which is used in the blur correction drive section, and another surface of which is used in a lock member drive section. The blur correction drive section is fixed to the permanent magnet and includes a yoke having projections formed at prescribed intervals along the permanent magnet and four coils opposing to both the permanent magnet and the projections with a prescribed gap and connecting to the blur correction optical system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.