Image sensor with improved micro-lens, related imaging method and electronic device
First Claim
1. An imaging method, comprising:
- detecting a current ambient luminous intensity;
when the current ambient luminous intensity is smaller than a preset intensity, controlling an image sensor to enter a first output mode, wherein the image sensor has the first output mode and a second output mode, the image sensor comprises an array of photosensitive units, an array of filter units arranged on the array of photosensitive units, and an array of micro lenses arranged on the array of filter units, the array of photosensitive units comprises focusing photosensitive units and non-focusing photosensitive units;
under the first output mode, controlling the array of photosensitive units to enter a focusing mode;
obtaining output values of a part of photosensitive pixels in each focusing photosensitive unit as first output values;
obtaining output values of another part of photosensitive pixels in each focusing photosensitive unit as second output values;
performing focusing control according to the first output values and the second output values;
under the first output mode, controlling the array of photosensitive units to enter an imaging mode; and
controlling the array of photosensitive units to expose to generate an image under the first output mode.
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Abstract
The present disclosure discloses an image sensor, an imaging method, an imaging device and an electronic device. The image sensor includes an array of photosensitive units, an array of filter units and an array of micro lenses, in which the array of photosensitive units includes focusing photosensitive units and non-focusing photosensitive units. With the image sensor, when a current ambient luminous intensity is smaller than a preset intensity, the image sensor generates an image with the first output mode, and when the current ambient luminous intensity is greater than the preset intensity, the image sensor generates an image with the second output mode. In addition, when the image sensor is used to focus, phase focusing may be performed according to output values of two parts of photosensitive pixels.
15 Citations
18 Claims
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1. An imaging method, comprising:
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detecting a current ambient luminous intensity; when the current ambient luminous intensity is smaller than a preset intensity, controlling an image sensor to enter a first output mode, wherein the image sensor has the first output mode and a second output mode, the image sensor comprises an array of photosensitive units, an array of filter units arranged on the array of photosensitive units, and an array of micro lenses arranged on the array of filter units, the array of photosensitive units comprises focusing photosensitive units and non-focusing photosensitive units; under the first output mode, controlling the array of photosensitive units to enter a focusing mode; obtaining output values of a part of photosensitive pixels in each focusing photosensitive unit as first output values; obtaining output values of another part of photosensitive pixels in each focusing photosensitive unit as second output values; performing focusing control according to the first output values and the second output values; under the first output mode, controlling the array of photosensitive units to enter an imaging mode; and controlling the array of photosensitive units to expose to generate an image under the first output mode. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An image sensor, comprising:
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an array of photosensitive units; an array of filter units, arranged on the array of photosensitive units; and an array of micro lenses, arranged on the array of filter units; wherein, the array of photosensitive units comprises focusing photosensitive units and non-focusing photosensitive units; the array of micro lenses comprises first micro lenses and second micro lenses, one first micro lens covers one focusing photosensitive unit, N×
N second micro lenses cover one non-focusing photosensitive unit, where N is a positive integer greater than or equal to 2; and
the array of micro lenses further comprises third micro lenses, one first micro lens covers N×
N third micro lenses, and the N×
N third micro lenses covers one focusing photosensitive unit. - View Dependent Claims (8, 9, 10, 11, 12)
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13. An electronic device, comprising:
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an image sensor, comprising; an array of photosensitive units; an array of filter units, arranged on the array of photosensitive units; and an array of micro lenses, arranged on the array of filter units, wherein, the array of photosensitive units comprises focusing photosensitive units and non-focusing photosensitive units; a detector, configured to detect a current ambient luminous intensity; and a controller, configured to; control the image sensor to enter the first output mode when the current ambient luminous intensity is smaller than a preset intensity; control, under the first output mode, the array of photosensitive units to enter a focusing mode; obtain output values of a part of photosensitive pixels in each focusing photosensitive unit as first output values; obtain output values of another part of photosensitive pixels in each focusing photosensitive unit as second output values; perform focusing control according to the first output values and the second output values; control, under the first output mode, the array of photosensitive units to enter an imaging mode; and control the array of photosensitive units to expose to generate an image under the first output mode. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification