Image blur suppression device for an optical camera
US5652918A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 10, 1995 |
| Grant date | Jul 29, 1997 |
| Priority date | — |
| Expiry date | May 10, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2217/005
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A motion compensation device for suppressing image blur in an imaging optical system corrects for both vertical and horizontal blur using an angular velocity sensor. The angular velocity sensors detect the rotary motion in the imaging optical system, such as for a camera. An actuator generates drive power to drive the compensation optical system, electromagnetically, approximately perpendicular to the optical axis of the imaging optical system, based on the output from the angular velocity sensor, and a location detector that monitors the location of the compensation optical system. A signal monitor monitors the driving signal that drives the actuator. An optimal driving signal convertor converts the output from the angular velocity sensor to an optimal driving signal for the actuator. The driving signal of actuator is corrected based on the difference between the optimal driving signal and driving signal as monitored by signal monitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.