Imaging device
US8228623B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 2011 |
| Grant date | Jul 24, 2012 |
| Priority date | — |
| Expiry date | May 31, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/67
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In order to obtain stable lens positions to have an object imaged in focus when the temperature of lenses changes, an imaging device of the present invention comprises a system control section 60 having a imaging mode and a correction mode, the imaging mode in which a group of lenses 10 are controlled and moved to focusing positions for a predetermined distance at first and are further moved to correct the focusing positions for the predetermined distance to the object during imaging according to the temperature compensation data, the correction mode in which the group of lenses 10 are controlled and moved to have the temperature compensation data corrected when the temperature change is larger than or equal to a predetermined temperature difference, a correction coefficient calculation section 50 for calculating the correction coefficient to correct the temperature compensation data based on first focusing positions of the group of lenses to which the group of lenses are moved according to the temperature compensation data before corrected and second focusing positions of the group of the lenses to which the group of the lenses are automatically moved from the first focusing posit…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.