Camera having shake correction device mounted thereon
US6987529B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 25, 2000 |
| Grant date | Jan 17, 2006 |
| Priority date | — |
| Expiry date | May 25, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2217/005
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A camera of this invention is a camera containing a shake correction device for correcting the shake by reading out application voltage data corresponding to a detected shake amount by use of parameters stored in an EEPROM indicating the relation between a voltage applied to a wedge prism and a deflection angle of a light beam and applying a voltage subjected to the temperature correcting process to the wedge prism to change the index of refraction of the wedge prism and deflect the light beam in a direction opposite to the shake direction. The parameters are determined by deriving the relation between the application voltage and the inclination of the light beam by detecting the inclination of a reference light beam from the illuminating position of the image sensing device while changing the index of refraction of the wedge prism by applying a voltage to the wedge prism and then stored into an EEPROM as a data table
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.