Motion compensation device for suppressing image blur in an optical system
US5671448A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 16, 1995 |
| Grant date | Sep 23, 1997 |
| Priority date | — |
| Expiry date | Jun 16, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2205/0069
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image blur suppression device for suppressing blur caused by motions imparted to a main optical system. A motion compensation optical system is supported by an elastic supporting material that permits the motion compensation optical system to shift perpendicular to an optical axis of the main optical system. A magnet is fixed to a stationary member surrounding the motion compensation optical system. A coil is linked to the motion compensation optical system. By supplying electrical current to the coil, an electromagnetic force is created which moves the motion compensation optical system. The magnet possesses two poles aligned in the direction of movement of the motion compensation optical system. The coil is wound in the direction approximately parallel to the optical axis of the main optical system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.