Camera system and lens apparatus
US7755695B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 29, 2004 |
| Grant date | Jul 13, 2010 |
| Priority date | — |
| Expiry date | Sep 2, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/673
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A camera system is disclosed which allows different types of lens apparatuses to be used in combination with a single image-taking apparatus without requiring changes of focus control signals on the side of the image-taking apparatus depending on the type of a lens apparatus mounted on the image-taking apparatus. The camera system includes an image-taking apparatus which outputs a focus control signal and a lens apparatus which includes a focus lens and is mounted on the image-taking apparatus. The lens apparatus includes a controller which produces a drive signal according to a type of focus of the lens apparatus based on the focus control signal and controls drive of the focus lens based on the drive signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.