IMAGE PICKUP ELEMENT AND IMAGE PICKUP APPARATUS
An image pickup element includes: light-receiving elements, arranged in row and column directions, that receive light from an object, two pairs of light-receiving elements forming a pair in the column direction and a pair in the row direction and outputting pixel signals forming two pairs of captured images that have parallax of the object; a microlens that refracts light from the object and causes the light-receiving elements to receive the light; a color filter, between the microlens and the light-receiving elements, that transmits light in accordance with color and is one of R, G, and B for each pair of light-receiving elements, R/G or BIG alternating in the row direction; and wiring, between the light-receiving elements in the row direction, that transmits an input signal or an output signal of the light-receiving elements. A color discrepancy in a left/right pair of captured images is thereby reduced.
1 . An image pickup element comprising:
a plurality of light-receiving elements, arranged in a row direction and a column direction, that receive light from an object, two pairs of light-receiving elements forming a pair in the column direction corresponding to a vertical direction of the object and forming a pair in the row direction corresponding to a horizontal direction of the object, the two pairs of light-receiving elements outputting pixel signals forming two pairs of captured images that have parallax of the object;
a microlens that refracts light from the object and causes the light-receiving elements to receive the light;
a color filter, between the microlens and the light-receiving elements, that transmits light in accordance with color and has one color among Red (R), Green (G), and Blue (B) for each pair of light-receiving elements, two colors R and G or two colors B and G alternating in the row direction; and
wiring, between the light-receiving elements in the row direction, that transmits an input signal or an output signal of the light-receiving elements.
2 . The image pickup element of claim 1 , wherein
the color filter has a portion in which two colors R and G or two colors B and G are adjacent in the column direction.
3 . The image pickup element of claim 2 , wherein
the color filter has a portion where the same colors are adjacent in the column direction.
4 . The image pickup element of claim 3 , wherein
the microlens is a spherical lens covering a pair of light-receiving elements that are adjacent in the column direction and are associated with the same color of the color filter.
5 . The image pickup element of claim 1 , wherein
the wiring is disposed between pairs of the light-receiving elements in the row direction.
6 . The image pickup element of claim 1 , wherein
the wiring is made of copper.
7 . An image pickup apparatus comprising:
the image pickup element of claim 1 ; and
a display configured to display a stereoscopic image based on the pairs of captured images of claim 1 .
8 . An image pickup apparatus comprising:
the image pickup element of claim 2 ; and
a display configured to display a stereoscopic image based on the pairs of captured images of claim 2 .
9 . An image pickup apparatus comprising:
the image pickup element of claim 3 ; and
a display configured to display a stereoscopic image based on the pairs of captured images of claim 3 .
10 . An image pickup apparatus comprising:
the image pickup element of claim 4 ; and
a display configured to display a stereoscopic image based on the pairs of captured images of claim 4 .
11 . An image pickup apparatus comprising:
the image pickup element of claim 5 ; and
a display configured to display a stereoscopic image based on the pairs of captured images of claim 5 .
12 . An image pickup apparatus comprising:
the image pickup element of claim 6 ; and
a display configured to display a stereoscopic image based on the pairs of captured images of claim 6 .
13 . The image pickup apparatus of claim 7 , further comprising:
an amplifier configured to amplify the pixel signals output by the light-receiving elements by an amplification factor in accordance with color of the color filter and to output amplified pixel signals to the display.
14 . The image pickup apparatus of claim 8 , further comprising:
an amplifier configured to amplify the pixel signals output by the light-receiving elements by an amplification factor in accordance with color of the color filter and to output amplified pixel signals to the display.
15 . The image pickup apparatus of claim 9 , further comprising:
an amplifier configured to amplify the pixel signals output by the light-receiving elements by an amplification factor in accordance with color of the color filter and to output amplified pixel signals to the display.
16 . The image pickup apparatus of claim 10 , further comprising:
an amplifier configured to amplify the pixel signals output by the light-receiving elements by an amplification factor in accordance with color of the color filter and to output amplified pixel signals to the display.
17 . The image pickup apparatus of claim 11 , further comprising:
an amplifier configured to amplify the pixel signals output by the light-receiving elements by an amplification factor in accordance with color of the color filter and to output amplified pixel signals to the display.
18 . The image pickup apparatus of claim 12 , further comprising:
an amplifier configured to amplify the pixel signals output by the light-receiving elements by an amplification factor in accordance with color of the color filter and to output amplified pixel signals to the display.