Imaging optical system for multi-focus camera
US7680411B2 · kind B2 · utility
5Cited by
3References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 21, 2006 |
| Grant date | Mar 16, 2010 |
| Priority date | — |
| Expiry date | May 31, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/8063
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Imaging optical systems of imaging units of a multi-focus camera are set to form respective focal planes in a shooting space at different distances from the multi-focus camera. Front depths of field of the imaging optical systems are set to be so deep that they reach the adjacent focal planes that are arranged on the camera side of the respective focal planes. Focal lengths and magnifications of the imaging optical systems are so defined that images of any subjects of the same size are taken in the same size regardless of where the subjects are located in the shooting space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.