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US 9,285,510 B2Granted
Optical element array and solid-state imaging device including the array
AssigneeCanon Kabushiki Kaisha
InventorsKazunari Kawabata, Jun Iba, Zempei Wada
Life of this patent
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Abstract
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.
Claims23
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, and
- a 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, and
- a 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.
5 more elements
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 an 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, and
- a 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,
- wherein the first optical element has:
- 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, and
- a second height positioned at the second position, which is lower than the first height, that is the highest point within a second cross section when the second cross section is taken along the second direction at the second position, wherein the second position is positioned at the periphery, and
- wherein
- the first position is distanced closer to the third position by less than half of the first length, and the second position is distanced from the third position by at least half of the first length in the first direction, or
- the first position is distanced from the third position by less than half of the first length, and the second position is distanced from the third position by at least half of the first length in the first direction.
8 more elements
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 an 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, and
- a 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,
- wherein the first optical element has:
- 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, and
- a second height positioned at the second position, which is lower than the first height, that is the highest point within a second cross section when the second cross section is taken along the second direction at the second position,
- wherein the second position is positioned at the periphery, and
- wherein the spacing between the center of the plurality of optical elements and the spacing between the center of the plurality of pixels is different in the first direction.
7 more elements
Dependencies are inferred from the claim text.