Image sensor

An image sensor comprising:

• a first substrate;
• a first color filter and a first microlens provided on a plurality of first photoelectric conversion elements in a first region of the first substrate;
• a second color filter and a second microlens provided on a plurality of second photoelectric conversion elements in a second region of the first substrate;
• and
• a third color filter and a third microlens provided on a plurality of third photoelectric conversion elements in a third region of the first substrate,
• wherein a first quantity of the plurality of first photoelectric conversion elements overlapping with the first microlens, a second quantity of the plurality of second photoelectric conversion elements overlapping with the second microlens, and a third quantity of the plurality of third photoelectric conversion elements overlapping with the third microlens are the same, and
• wherein a thickness of the first microlens and a thickness of the third microlens are different.

An image sensor comprising:

• a first substrate;
• a first color filter and a first microlens provided on a plurality of first photoelectric conversion elements in a first region of the first substrate;
• a second color filter and a second microlens provided on a plurality of second photoelectric conversion elements in a second region of the first substrate;
• and
• a third color filter and a third microlens provided on a plurality of third photoelectric conversion elements in a third region of the first substrate,
• wherein a quantity of the plurality of second photoelectric conversion elements is at least two times greater than a quantity of the plurality of first photoelectric conversion elements, and
• wherein a thickness of the second microlens is greater than a thickness of the first microlens.