Digital camera and mobile information terminal apparatus
US7477454B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 17, 2006 |
| Grant date | Jan 13, 2009 |
| Priority date | — |
| Expiry date | Mar 17, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/67
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A digital camera and a mobile information terminal apparatus including a lens barrel including a first lens group and a second lens group disposed on an optical axis and configured to be related to operations concerned with changing overall relative magnification, a third lens group disposed on the optical axis and configured to be related to operations concerned with changing overall relative magnification and to be retracted from the optical axis in a collapsed state, a first driving device configured to drive the first lens group and the second lens group, a second driving device configured to drive the third lens group, a CCD disposed on the optical axis and configured to photograph a subject, a distance determining device configured to determine a distance to the subject, and a floating control device configured to drive at least one of the first driving device and the second driving device based on distance information obtained from the distance determining device to change an interval between the first lens group and the second lens group to provide an image quality balance between different parts of the image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.