Image sensor, scanner including the same, and method of operating the scanner
Provided is an image sensor including a plurality of pixels provided in an array, wherein each of the plurality of pixels includes a plurality of sub-pixels, and wherein the plurality of sub-pixels are provided such that electric charges, generated from pixels among the plurality of pixels provided perpendicular to a moving direction of an object, accumulate while moving in the moving direction of the object at a same speed as the object.
1 . An image sensor comprising:
a plurality of pixels arranged in an array,
wherein each pixel of the plurality of pixels comprises a plurality of sub-pixels,
wherein the plurality of sub-pixels are arranged such that electric charges, generated in pixels, among the plurality of pixels, arranged perpendicular to a moving direction of an object, accumulate while moving in the moving direction of the object at a same speed as the object,
wherein the plurality of sub-pixels comprise at least three sub-pixels arranged in a direction perpendicular to the moving direction of the object, and
wherein all of the plurality of sub-pixels are arranged in a line in the direction perpendicular to the moving direction of the object.
2 . The image sensor of claim 1 , wherein the plurality of sub-pixels comprises at least four sub-pixels.
3 . The image sensor of claim 2 , wherein the at least four sub-pixels are configured to receive light of different wavelengths.
4 . The image sensor of claim 2 , wherein some of the at least four sub-pixels are configured to receive light of a same wavelength.
5 . The image sensor of claim 1 , wherein the plurality of sub-pixels are arranged in a Bayer pattern.
6 . The image sensor of claim 5 , wherein, in the plurality of pixels, a first sub-pixel of a first pixel is connected to a first sub-pixel of a second pixel through a first wiring, a second sub-pixel of the first pixel is connected to a second sub-pixel of the second pixel through a second wiring, and a third sub-pixel of the first pixel is connected to a third sub-pixel of the second pixel through a third wiring, and
wherein the first sub-pixels are configured to receive light of a first wavelength, the second sub-pixels are configured to receive light of a second wavelength different from the first wavelength, and the third sub-pixels are configured to receive light of a third wavelength different from the first and second wavelengths.
7 . The image sensor of claim 1 , wherein a length of each sub-pixel of the plurality of sub-pixels in a horizontal direction is different than a length of each sub-pixel of the plurality of sub-pixels in a vertical direction.
8 . The image sensor of claim 1 , wherein a length of each sub-pixel of the plurality of sub-pixels in a direction parallel to the moving direction of the object is greater than a length of each sub-pixel of the plurality of sub-pixels in the direction perpendicular to the moving direction of the object.
9 . A scanner comprising:
an image sensor comprising:
a plurality of pixels arranged in an array,
wherein each pixel of the plurality of pixels comprises a plurality of sub-pixels,
wherein the plurality of sub-pixels are arranged so that electric charges, generated in pixels, among the plurality of pixels, arranged perpendicular to a moving direction of an object, accumulate while moving in the moving direction of the object at a same speed as the object,
wherein the plurality of sub-pixels comprise at least three sub-pixels arranged in a direction perpendicular to the moving direction of the object, and
wherein all of the plurality of sub-pixels are arranged in a line in the direction perpendicular to the moving direction of the object.
10 . The scanner of claim 9 , wherein the plurality of sub-pixels comprises at least four sub-pixels.
11 . The scanner of claim 10 , wherein the at least four sub-pixels are configured to receive light of different wavelengths.
12 . The scanner of claim 10 , wherein some of the at least four sub-pixels are configured to receive light of a same wavelength.
13 . The scanner of claim 12 , wherein the some of the at least four sub-pixels configured to receive the light of the same wavelength are connected through a same wiring.
14 . The scanner of claim 9 , wherein the plurality of sub-pixels are arranged in a Bayer pattern.
15 . The scanner of claim 9 , wherein a length of each sub-pixel of the plurality of sub-pixels in a horizontal direction is different than a length of each sub-pixel of the plurality of sub-pixels in a vertical direction.
16 . The scanner of claim 9 , wherein a length of each sub-pixel of the plurality of sub-pixels in a direction parallel to the moving direction of the object is greater than a length of each sub-pixel of the plurality of sub-pixels in the direction perpendicular to the moving direction of the object.
17 . A method of operating a scanner comprising an image sensor, the method comprising:
synchronizing a moving speed of electric charges, generated in a plurality of pixels arranged perpendicular to a moving direction of an object, in the moving direction of the object with a moving speed of the object,
wherein each of the plurality of pixels comprises a plurality of sub-pixels,
wherein the plurality of sub-pixels are arranged such that electric charges, generated in pixels, among the plurality of pixels, arranged perpendicular to the moving direction of the object, accumulate while moving in the moving direction of the object at a same speed as the moving speed of the object,
wherein the plurality of sub-pixels comprise at least three sub-pixels arranged in a direction perpendicular to the moving direction of the object, and
wherein all of the plurality of sub-pixels are arranged in a line in the direction perpendicular to the moving direction of the object.