IMAGE SENSOR, PHOTOGRAPHING METHOD, AND IMAGE-CAPTURING DEVICE
First Claim
Patent Images
1. An image sensor comprising:
- a plurality of microlenses arranged in a two-dimensional pattern; and
a plurality of pixels that are provided in correspondence to each of the microlenses and receive lights of different color components, respectively, whereinpixels that are provided at adjacent microlenses among the microlenses and that receive lights of same color components, are adjacently arranged.
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Abstract
An image sensor includes: a plurality of microlenses arranged in a two-dimensional pattern; and a plurality of pixels that are provided in correspondence to each of the microlenses and receive lights of different color components, respectively. Pixels that are provided at adjacent microlenses among the microlenses and that receive lights of same color components, are adjacently arranged.
36 Citations
16 Claims
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1. An image sensor comprising:
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a plurality of microlenses arranged in a two-dimensional pattern; and a plurality of pixels that are provided in correspondence to each of the microlenses and receive lights of different color components, respectively, wherein pixels that are provided at adjacent microlenses among the microlenses and that receive lights of same color components, are adjacently arranged. - View Dependent Claims (2)
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3. An image sensor comprising:
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a plurality of microlenses arranged in a two-dimensional pattern; and a plurality of pixels that are arranged in correspondence to each of the microlenses and receive lights having different color components, respectively, wherein signals from the pixels are used both for focus detection and for generation of image data.
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4. A photographing method comprising:
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a focus detection step for performing focus detection, by using signals from particular pixels in an image sensor including a plurality of microlenses arranged in a two-dimensional pattern and a plurality of pixels that are arranged in correspondence to each of the microlenses and receive lights having different color components, the particular pixels receiving lights of same color components from different microlenses, respectively; and a shooting step for generating a capture image by using signals from plurality of pixels provided in correspondence to each of the microlenses, the plurality of pixels receiving lights of different color components. - View Dependent Claims (5)
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6. An image-capturing device comprising:
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an image sensor that captures an image of a subject with light fluxes from the subject that have passed through an imaging optical system; an image generation unit that generates an image signal based upon an output signal from the image sensor; and a focus detection unit that detects a focusing condition of the imaging optical system by a phase detection method based upon an output signal from the image sensor, wherein the image sensor includes a pixel group and a microlens group arranged so as to guide the light fluxes from the subject to the pixel group, the pixel group includes first, second and third pixels having first, second and third spectral sensitivities, respectively, differing from each other, and being arranged in a two-dimensional pattern, with one of the first pixels, one of the second pixels and two of the third pixels being arranged in a two-by-two matrix behind each microlens in the microlens group, and the four pixels receive four light fluxes, respectively, that pass through four pupil areas, respectively, of an exit pupil of the imaging optical system, the first, second, and third pixels are arranged such that pixels having substantially same spectral sensitivities are adjacently arranged in a two-by-two matrix and four pixels adjacent to the two-by-two matrix are arranged behind four different microlenses in the microlens group, respectively, and at different positions with respect to the microlenses, the image generation unit generates the image signal based upon output signals from the first, second and third pixels, and the focus detection unit detects the focusing condition based upon an output signal from at least one of the first, second, and third pixels. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An image sensor comprising:
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a pixel group; and a microlens group arranged so as to guide subject light fluxes to the pixel group, wherein the pixel group includes first, second and third pixels having first, second and third spectral sensitivities, respectively, differing from each other, and being arranged in a two-dimensional pattern, with one of the first pixels, one of the second pixels and two of the third pixels being arranged in a two-by-two matrix behind each microlens in the microlens group, and the four pixels receive four light fluxes, respectively, that pass through four pupil areas, respectively, of an exit pupil of an imaging optical system, the first, second, and third pixels are arranged such that pixels having substantially same spectral sensitivities are adjacently arranged in a two-by-two matrix, respectively, and four pixels adjacent to the two-by-two matrix are arranged behind four different microlenses of the microlens group, respectively, and at different positions with respect to the microlenses.
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Specification