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US 2020/0221045 A1Published application
Imaging device and endoscope device
AssigneeOlympus Corporation
InventorYoshio Hagihara
Life of this patent
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Abstract
An imaging device includes a first substrate and a second substrate stacked on the first substrate. The first substrate includes a plurality of pixels. Each pixel block includes all of the pixels disposed in one or more columns in an array of the plurality of pixels. The second substrate includes a plurality of AD conversion circuits configured to convert a pixel signal read from two or more pixels belonging to the pixel block corresponding to the AD conversion circuit to a digital signal. For all combinations of two pixel blocks adjacent to each other in the first substrate, two AD conversion circuits corresponding to the adjacent two pixel blocks are adjacent to each other in the second substrate.
Claims8
An imaging device comprising:
- a first substrate;
- and
- a second substrate stacked on the first substrate,
- wherein the first substrate includes a plurality of pixels forming a first array and disposed in a matrix shape,
- each pixel included in the plurality of pixels belongs to one pixel block included in a plurality of pixel blocks and is configured to output an analog pixel signal,
- the second substrate includes a plurality of AD conversion circuits forming a second array, each AD conversion circuit included in the plurality of AD conversion circuits being configured to convert the pixel signal read from two or more pixels included in the plurality of pixels and belonging to the pixel block corresponding to the AD conversion circuit to a digital signal,
- at least one of the first substrate and the second substrate includes a selecting circuit configured to control a timing at which the pixel signal is read from the plurality of pixels,
- each pixel block included in the plurality of pixel blocks includes all of the pixels disposed in one or more columns in the first array,
- the plurality of AD conversion circuits are disposed in a matrix shape having M rows and N columns, the M being an integer greater than or equal to 3, the N being an integer greater than or equal to 2,
- a width of each AD conversion circuit included in the plurality of AD conversion circuits in a row direction in the second array is larger than a pitch of each pixel included in the plurality of pixels, and
- for all combinations of two pixel blocks included in the plurality of pixel blocks and adjacent to each other in the first substrate, two AD conversion circuits included in the plurality of AD conversion circuits and corresponding to the adjacent two pixel blocks are adjacent to each other in the second substrate.
8 more elements
An imaging device comprising:
- a first substrate;
- and
- a second substrate stacked on the first substrate,
- wherein the first substrate includes a plurality of pixels forming a first array and disposed in a matrix shape,
- each pixel included in the plurality of pixels belongs to one pixel block included in a plurality of pixel blocks and is configured to output an analog pixel signal,
- the second substrate includes a plurality of AD conversion circuits forming a second array, each AD conversion circuit included in the plurality of AD conversion circuits being configured to convert the pixel signal read from two or more pixels included in the plurality of pixels and belonging to the pixel block corresponding to the AD conversion circuit to a digital signal,
- at least one of the first substrate and the second substrate includes a selecting circuit configured to control a timing at which the pixel signal is read from the plurality of pixels,
- each pixel block included in the plurality of pixel blocks includes all of the pixels disposed in one or more columns in the first array,
- the plurality of AD conversion circuits are disposed in a matrix shape having M rows and N columns, the M being an integer greater than or equal to 3, the N being an integer greater than or equal to 2,
- a width of each AD conversion circuit included in the plurality of AD conversion circuits in a row direction in the second array is larger than a pitch of each pixel included in the plurality of pixels,
- for all combinations of two AD conversion circuits included in the plurality of AD conversion circuits and adjacent to each other in a column direction in the second array, two pixel blocks included in the plurality of pixel blocks and corresponding to the two AD conversion circuits adjacent to each other in the column direction are adjacent to each other in the first substrate, and
- for all the combinations, the two AD conversion circuits adjacent to each other in the column direction are shifted from each other by a predetermined distance in a row direction in the second array.
9 more elements
Dependencies are inferred from the claim text.