Image sensor, imaging apparatus and live body imaging apparatus
There is provided an image sensor including a pixel unit, the pixel unit including a photodiode, a first color filter and a second color filter each disposed in a different position on a plane above the photodiode, and a first on-chip lens disposed over the first color filter and a second on-chip lens disposed over the second color filter.
1. An imaging device comprising:
a filter array unit comprising:
a first sub filter array unit disposed diagonally to a second sub filter array unit; and
a third sub filter array unit disposed diagonally to a fourth sub filter array unit, wherein:
the first sub filter array unit comprises a first filter of a first color and a second filter of a second color,
the second sub filter array unit comprises a third filter of the first color and a fourth filter of the second color,
the third sub filter array unit comprises a fifth filter of a third color, and
the fourth sub filter array unit comprises a sixth filter of a fourth color.
2. The imaging device of claim 1 , wherein the first, second, third, and fourth sub filter array units are arranged in a matrix.
3. The imaging device of claim 2 , wherein the matrix is a two-by-two matrix.
4. The imaging device of claim 1 , wherein the first sub filter array unit further comprises a seventh filter of a fifth color and the second sub filter array unit comprises an eighth filter of the fifth color.
5. The imaging device of claim 1 , wherein each of the first, second, third, and fourth sub filter array units are configured to transmit infrared light.
6. The imaging device of claim 1 , further comprising a common floating diffusion disposed in a central position of the first, second, third, and fourth sub filter array units.
7. The imaging device of claim 1 , wherein each of the first, second, third, and fourth sub filter array units are disposed over a respective photodiode.
8. An image sensor comprising:
a filter array unit comprising:
a first sub filter array unit disposed diagonally to a second sub filter array unit; and
a third sub filter array unit disposed diagonally to a fourth sub filter array unit, wherein:
the first sub filter array unit comprises a first filter of a first color and a second filter of a second color,
the second sub filter array unit comprises a third filter of the first color and a fourth filter of the second color,
the third sub filter array unit comprises a fifth filter of a third color, and
the fourth sub filter array unit comprises a sixth filter of a fourth color.
9. The image sensor of claim 8 , wherein the first, second, third, and fourth sub filter array units are arranged in a matrix.
10. The image sensor of claim 9 , wherein the matrix is a two-by-two matrix.
11. The image sensor of claim 8 , wherein the first sub filter array unit further comprises a seventh filter of a fifth color and the second sub filter array unit comprises an eighth filter of the fifth color.
12. The image sensor of claim 8 , wherein each of the first, second, third, and fourth sub filter array units are configured to transmit infrared light.
13. The image sensor of claim 8 , further comprising a common floating diffusion disposed in a central position of the first, second, third, and fourth sub filter array units.
14. The image sensor of claim 8 , wherein each of the first, second, third, and fourth sub filter array units are disposed over a respective photodiode.
15. An imaging apparatus comprising:
a lens section;
an image processor; and
an imaging device comprising a filter array unit, the filter array unit comprising:
a first sub filter array unit disposed diagonally to a second sub filter array unit; and
a third sub filter array unit disposed diagonally to a fourth sub filter array unit, wherein:
the first sub filter array unit comprises a first filter of a first color and a second filter of a second color,
the second sub filter array unit comprises a third filter of the first color and a fourth filter of the second color,
the third sub filter array unit comprises a fifth filter of a third color, and
the fourth sub filter array unit comprises a sixth filter of a fourth color.
16. The imaging apparatus of claim 15 , wherein the first, second, third, and fourth sub filter array units are arranged in a matrix.
17. The imaging apparatus of claim 16 , wherein the matrix is a two-by-two matrix.
18. The imaging apparatus of claim 15 , wherein the first sub filter array unit further comprises a seventh filter of a fifth color and the second sub filter array unit comprises an eighth filter of the fifth color.
19. The imaging apparatus of claim 15 , wherein each of the first, second, third, and fourth sub filter array units are configured to transmit infrared light.
20. The imaging apparatus of claim 15 , further comprising a common floating diffusion disposed in a central position of the first, second, third, and fourth sub filter array units.