Color imaging element and imaging device

A single plate color imaging element, comprising:na plurality of pixels comprised of photoelectric conversion elements arranged in a first direction and in a second direction perpendicular to the first direction; andcolor filters disposed on the plurality of pixels, whereinan array of the color filters comprises a basic array pattern in which the color filters are arranged in an array pattern corresponding to M×M (where M is an integer of three or greater) pixels in the first direction and in the second direction, the basic array pattern being repeatedly disposed in the first direction and in the second direction,the color filters comprise a first filter corresponding to a first color of one or more colors and a second filter corresponding to a second color of two or more colors, the second color having a lower contribution ratio to obtain a brightness signal than the first color, a ratio of the number of all pixels of the first color corresponding to the first filter is higher than a ratio of the number of pixels of each color of the second color corresponding to the second filter,in the basic array pattern, the first filter is disposed in a peripheral portion configuring two adjacent sides among four sides of the array pattern corresponding to M×M (where M is an integer of three or greater) pixels, andthe second filter is disposed in a portion other than the peripheral portion configuring the two sides such that a ratio of the number of pixels of the second color is higher than a ratio of the number of pixels of the first color in the portion other than the peripheral portion configuring the two sides.

A single plate color imaging element, comprising:na plurality of pixels comprised of photoelectric conversion elements arranged in a first direction and in a second direction perpendicular to the first direction; andcolor filters disposed on the plurality of pixels, whereinan array of the color filters comprises a basic array pattern in which the color filters are arranged in an array pattern corresponding to M×N (where M is an integer of three or greater, and N is an even number of six or greater) pixels in the first direction and in the second direction, the basic array pattern being repeatedly disposed in the first direction and in the second direction,the basic array pattern comprises two types of a first sub-array and a second sub-array, in each of the first sub-array and the second sub-array, the color filters are arranged in an array pattern corresponding to M×(N/2) pixels,the color filters comprise a first filter corresponding to a first color of one or more colors and a second filter corresponding to a second color of two or more colors, the second color having a lower contribution ratio to obtain a brightness signal than the first color, a ratio of the number of all pixels of the first color corresponding to the first filter is higher than a ratio of the number of pixels of each color of the second color corresponding to the second filter,in each of the first sub-array and the second sub-array, the first filter is disposed in a peripheral portion configuring two adjacent sides among four sides of the array pattern corresponding to M×(N/2) pixels, andthe second filter is disposed in a portion other than the peripheral portion configuring the two sides such that a ratio of the number of pixels of the second color is higher than a ratio of the number of pixels of the first color in the portion other than the peripheral portion configuring the two sides in each of the first sub-array and the second sub-array.

A single plate color imaging element, comprising:na plurality of pixels comprised of photoelectric conversion elements arranged in a first direction and in a second direction perpendicular to the first direction; andcolor filters disposed on the plurality of pixels, whereinan array of the color filters comprises a basic array pattern in which the color filters are arranged in an array pattern corresponding to M×M (where M is an even number of six or greater) pixels in the first direction and in the second direction, the basic array pattern being repeatedly disposed in the first direction and in the second direction,the basic array pattern comprises two first sub-arrays and two second sub-arrays which are two types of sub-arrays, in each of the first sub-arrays and the second sub-arrays, the color filters are arranged in an array pattern corresponding to (M/2)×(M/2) pixels,the color filters comprise a first filter corresponding to a first color of one or more colors and a second filter corresponding to a second color of two or more colors, the second color having a lower contribution ratio to obtain a brightness signal than the first color, a ratio of the number of all pixels of the first color corresponding to the first filter is higher than a ratio of each number of pixels of each color of the second color corresponding to the second filter,in each of the first sub-arrays and the second sub-arrays, the first filter is disposed in a peripheral portion configuring two adjacent sides among four sides of the array pattern corresponding to (M/2)×(M/2) pixels, andthe second filter is disposed in a portion other than the peripheral portion configuring the two sides such that a ratio of the number of pixels of the second color is higher than a ratio of the number of pixels of the first color in the portion other than the peripheral portion configuring the two sides in each of the first sub-arrays and the second sub-arrays.

A single plate color imaging element, comprising:na plurality of pixels comprised of photoelectric conversion elements arranged in a first direction and in a second direction perpendicular to the first direction; andcolor filters disposed on the plurality of pixels, whereinan array of the color filters comprises a basic array pattern in which the color filters are arranged in an array pattern corresponding to M×M (where M is an even number of six or greater) pixels in the first direction and in the second direction, the basic array pattern being repeatedly disposed in the first direction and in the second direction,the basic array pattern comprises four types of a first sub-array, a second sub-array, a third sub-array and a fourth sub-array, in each of the first sub-array, the second sub-array, the third sub-array and the fourth sub-array, the color filters are arranged in an array pattern corresponding to (M/2)×(M/2) pixels,the color filters comprise a first filter corresponding to a first color of one or more colors and a second filter corresponding to a second color of two or more colors, the second color having a lower contribution ratio to obtain a brightness signal than the first color, a ratio of the number of all pixels of the first color corresponding to the first filter is higher than a ratio of each number of pixels of each color of the second color corresponding to the second filter,in each of the first sub-array, the second sub-array, the third sub-array and the fourth sub-array, the first filter is disposed in a peripheral portion configuring two adjacent sides among four sides of an array pattern corresponding to (M/2)×(M/2) pixels, andthe second filter is disposed in a portion other than the peripheral portion configuring the two sides such that a ratio of the number of pixels of the second color is higher than a ratio of the number of pixels of the first color in the portion other than the peripheral portion configuring the two sides in each of the first sub-array, the second sub-array, the third sub-array and the fourth sub-array.