Color image pickup device and color light-receiving device
AssigneeCanon Kabushiki Kaisha
InventorTatsuya Iwasaki
Life of this patent
Estimating the term…
Abstract
A light-receiving device comprises, on a substrate, a first light-receiving part for detecting light of a first wavelength range, and a second light-receiving part for detecting light of a second wavelength range. At least a part of incident light is transmitted through the first light-receiving part and then received by the second light-receiving part. The central wavelength of the first wavelength range is longer than the central wavelength of the second wavelength range, and the first light-receiving part is composed of an organic semiconductor having an absorption spectral maximum in the first wavelength range.
Claims7
A light-receiving device comprising:
- a first light-receiving part for detecting light of a first wavelength range;
- a second light-receiving part for detecting light of a second wavelength range;
- and
- a third light-receiving part for detecting light of a third wavelength range,
- wherein said first light-receiving part is composed of an organic semiconductor having an absorption spectral maximum in the first wavelength range and transmitting light of the second and the third wavelength ranges, and is stacked over said second and the third light-receiving parts,
- said second light-receiving part is located in a silicon substrate,
- said third light-receiving part is located in the silicon substrate at a depth deeper than said second light-receiving part, and
- a central wavelength of the first wavelength range is longer than a central wavelength of the second wavelength range and shorter than a central wavelength of the third wavelength range.
Dependencies are inferred from the claim text.