Camera and distance measuring method thereof
US6895181B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 20, 2003 |
| Grant date | May 17, 2005 |
| Priority date | — |
| Expiry date | Aug 20, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B7/34
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention provides a camera where a focusing position of a taking lens is adjusted as a first focus adjustment by a CPU, and as a second focus adjustment lower in accuracy but higher at a speed than the first focus adjustment. An object image is picked up through the taking lens by an imager, and an output signal of the imager is converted into image data. A compressibility of the image data obtained at the imager is set by an image processing section, and the image data is compressed in accordance with the set compressibility. Then, in accordance with the compressibility set by the image processing section, the CPU decides which of the first focus adjustment and the second focus adjustment is used to execute a final focus adjustment operation of the taking lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.