Camera with adjustable auto-focus detection area
US7262803B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 1, 2003 |
| Grant date | Aug 28, 2007 |
| Priority date | — |
| Expiry date | Dec 28, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/675
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical apparatus which can be focused on an object included at an arbitrary position in an image-taking area with simple operations, is disclosed. The optical apparatus according to the present invention comprises a focusing state calculating circuit which derives information indicating a focusing state of an optical system based on an output signal from an image-pickup area which corresponds to part of an image-pickup device, and a storage circuit which stores the position of the image-pickup area in the image-pickup device. The optical apparatus also comprises a setting system which moves the image-pickup area, stores the position of the image-pickup area in the storage circuit, and sets an image-pickup area which has been stored in the storage circuit as the image-pickup area in performing focus adjustment control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.