Lens apparatus, imaging apparatus, and automatic focusing control method
US7884878B2 · kind B2 · utility
1Cited by
8References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 7, 2006 |
| Grant date | Feb 8, 2011 |
| Priority date | — |
| Expiry date | Feb 1, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/673
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A lens apparatus capable of carrying out a suitable AF control operation even when text or character information is superimposed on a video signal is provided. The lens apparatus is configured to generate first and second AF evaluation values from a video signal obtained from an imaging unit of a camera apparatus, and to perform focusing control based on the second AF evaluation value. In the lens apparatus, the first AF evaluation value is selectively output to a second AF evaluation value generating unit for every scanning line of the video signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.