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US 12,730,284 B2Granted
Cemented optical element, optical apparatus, and image pickup apparatus
AssigneeCanon Kabushiki Kaisha
InventorKazuhiro Arai
Life of this patent
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Abstract
A cemented optical element having a first optical component, a second optical component, and a third optical component that contains a resin and is sandwiched between the first optical component and the second optical component. The first optical component contains a resin and has a line unevenness structure on at least a part of a surface in contact with the third optical component. The fine unevenness structure is formed by a plurality of holes or columnar protrusions.
Claims9
A cemented optical element comprising:
- a first optical component;
- a second optical component;
- and
- a third optical component that contains a resin and is sandwiched between the first optical component and the second optical component,
- wherein the first optical component contains a resin and has a fine unevenness structure on at least a part of a surface in contact with the third optical component,
- wherein the fine unevenness structure is formed by a plurality of holes or columnar protrusions, and
- wherein each of the holes has a depth of 30 nm or more and 100 nm or less or each of the columnar protrusions has a height of 30 nm or more and 100 nm or less.
4 more elements
An optical apparatus comprising:
- a housing;
- and
- a cemented optical element provided inside the housing,
- wherein the cemented optical element comprises:
- a first optical component,
- a second optical component, and
- a third optical component that contains a resin and is sandwiched between the first optical component and the second optical component,
- wherein the first optical component contains a resin and has a fine unevenness structure on at least a part of a surface in contact with the third optical component,
- wherein the fine unevenness structure is formed by a plurality of holes or columnar protrusions, and
- wherein each of the holes has a depth of 30 nm or more and 100 nm or less or each of the columnar protrusions has a height of 30 nm or more and 100 nm or less.
7 more elements
An image pickup apparatus comprising:
- an optical apparatus;
- and
- an image pickup element that receives incident light through the optical apparatus,
- wherein the optical apparatus comprises a housing and a cemented optical element provided inside the housing,
- wherein the cemented optical element comprises a first optical component, a second optical component, and a third optical component that contains a resin and is sandwiched between the first optical component and the second optical component,
- wherein the first optical component contains a resin and has a fine unevenness structure on at least a part of a surface in contact with the third optical component,
- wherein the fine unevenness structure is formed by a plurality of holes or columnar protrusions, and
- wherein each of the holes has a depth of 30 nm or more and 100 nm or less or each of the columnar protrusions has a height of 30 nm or more and 100 nm or less.
5 more elements
Dependencies are inferred from the claim text.