Solid-state color image sensor having an arrangement to compensate for dependence of light sensing characteristics upon color
US6127670A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 10, 1998 |
| Grant date | Oct 3, 2000 |
| Priority date | — |
| Expiry date | Jun 10, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/182
Abstract
A solid-state color image sensor includes a two-dimensional array of photo-to-electric conversion areas. A color separation filter has segments opposed to the photo-to-electric conversion areas respectively. The color separation filter segments have respective colors selected from among at least first and second predetermined colors. Micro-lenses operate for focusing portions of incident light containing image information on the photo-to-electric conversion areas via the color separation filter segments, respectively. The micro-lenses related to the color separation filter segments having the first predetermined color are different in characteristic from the micro-lenses related to the color separation filter segments having the second predetermined color. For example, the micro-lenses related to the color separation filter segments having the first predetermined color have a first predetermined curvature, and the micro-lenses related to the color separation filter segments having the second predetermined color have a second predetermined curvature different from the first predetermined curvature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.