Shooting lens having vibration reducing function and camera system for same
US8259183B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2011 |
| Grant date | Sep 4, 2012 |
| Priority date | — |
| Expiry date | Mar 18, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/687
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention includes a vibration reduction mechanism, a vibration detecting part, a reference signal generating part, a target drive position calculating part, and a driving part. The vibration reduction mechanism reduces a vibration of a subject image. The vibration detecting part outputs a vibration detection signal. The reference signal generating part estimates a reference signal of the vibration detection part. The target drive position calculating part obtains a vibration component from a difference between the vibration detection signal and the estimated reference signal to obtain a target position to which the vibration reduction mechanism is driven. The driving part controls the vibration reduction mechanism to follow the target position. Particularly, the reference signal generating part corrects the reference signal according to a motion signal obtained from a captured image. An accurate reference signal can be obtained by the correction, thereby improving the performance of the vibration reduction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.