High resolution image pickup system with color dispersion means
US4882619A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 6, 1987 |
| Grant date | Nov 21, 1989 |
| Priority date | — |
| Expiry date | Apr 6, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/555
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In order to enhance resolving power and making the fabrication of an optical system easy, the image pickup device is of an arrangement that a color-separating optical means is disposed between an objective lens and a solid-state image sensor, and those images by the respective color lights which are focused at mutually displaced positions on the solid-state image sensor are integrated into one unified image by a signal processing circuitry to thereby collect also the image-informations corresponding to those areas lying between the picture elements. The color-separating optical means may be formed by either one of a color dispersion prism, a dichroic mirror, a diffraction grating, a glass block made of a medium of heterogeneous material and a light-divider containing liquid crystal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.