Optical element array and solid-state imaging device including the array

摘要

An optical element array includes a plurality of optical elements arranged along a first direction and a second direction. A first optical element is included at a position distanced from a center of the optical element array by a first distance. The first optical element has a first width, a first height, and a first curvature radius at the first position, and a second width, a second height, and a second curvature radius at a second position. The first width is wider than the second width, the first height is higher than the second height, and the first curvature radius is smaller than the second curvature radius. The first position and the second position are taken along a single direction.

主权项

1. An optical element array comprising:
a plurality of optical elements, wherein the plurality of optical elements includes a first optical element arranged along a first direction and positioned by a first distance along the first direction from a center of an array region where the plurality of optical elements are disposed, wherein, with respect to a periphery of the first optical element projected onto a face including the first direction and a second direction orthogonal to the first direction, the first optical element has:
a first width along the second direction positioned at a first position in the first direction within the first optical element, anda second width narrower than the first width along the second direction positioned at a second position further from the center of the array region than the first position in the first direction within the first optical element, and wherein the first optical element has:
a first curvature radius and a first height that is the highest point within a first cross section when the first cross section is taken along the second direction at the first position, anda second curvature radius larger than the first curvature radius and a second height lower than the first height, which is the highest point within a second cross section when the second cross section is taken along the second direction at the second position.