Camera having photographing elements for photoelectrically converting optical image into image signals
US6639629B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 1998 |
| Grant date | Oct 28, 2003 |
| Priority date | — |
| Expiry date | Apr 22, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/75
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A camera is provided with a lens for focusing an optical image of a subject onto an image focusing surface; photographing elements, provided on the image focusing surface, for photoelectrically converting the optical image into image signals, the photographing elements arranged with an arrangement pitch not larger than 7.0 &mgr;m; and a diaphragm having a photographing aperture through which the optical image enters into the photographing elements, the diaphragm adjusting the area of the photographing aperture so as to control a light amount of the optical image, wherein when the diaphragm adjusts the photographing aperture so as to have the smallest area, F-number is smaller than 5.6.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.