Charge-coupled device having on-chip lens
US5592223A · kind A · utility
22Cited by
7References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 12, 1995 |
| Grant date | Jan 7, 1997 |
| Priority date | — |
| Expiry date | May 12, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F77/40
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a color CCD (charge-coupled device) imaging device where chromatic filter components are formed on sensor units functioning as pixels, respectively, and small condenser lenses are provided on the respective chromatic filter components, it is so constructed that areas of the small condenser lenses are varied, depending upon film thickness of the respective chromatic filter components. Then, the sensitivity increasing rates for the respective pixels of the color CCD imaging device are uniformed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.