Color-image pickup device in which an R picture signal is relatively enhanced with distance from center of light-reception area
US7367537B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 24, 2004 |
| Grant date | May 6, 2008 |
| Priority date | — |
| Expiry date | Apr 18, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/611
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a color-image pickup device, light is decomposed by R filters, G filters, B filters, and an infrared blocking film into R, G, and B components, and photoelectric conversion elements arranged in a light-reception area receive the R, G, and B components, and output R, G, and B picture signals. The relative reduction in the intensity of the R picture signal, which increases with the incident angle of the R component, is compensated for by relatively increasing the transmittance of the R component or the gain of the R picture signal, or setting light-reception efficiencies at the respective photoelectric conversion elements so as to relatively increase the light-reception efficiency of the R component, with an increase in the distance from the center of the light-reception area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.