WAFER-LEVEL LENS MODULE AND IMAGE PICKUP DEVICE INCLUDING THE SAME
First Claim
1. A wafer-scale lens comprising:
- a substrate comprising a light-transmission part and a first alignment guide disposed outside the light-transmission part; and
a first lens element comprising an optical zone, an extended zone disposed outside the optical zone, and a second alignment guide disposed in the extended zone,wherein one of the first alignment guide and the second alignment guide is a trench and another of the first alignment guide and the second alignment guide is a protrusion; and
wherein the lens element is disposed on the substrate such that the optical zone is aligned with the light-transmission part and the first alignment guide is aligned with the second alignment guide such that an inclined portion of the protrusion contacts corners of the trench.
1 Assignment
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Accused Products
Abstract
Disclosed are a wafer-level lens module including a plurality of wafer-scale lenses that are stacked and an image pickup device including the wafer-level lens module and an image sensor. Each wafer-scale lens includes a substrate with a light-transmission part, and a lens element fixed on one side or both sides of the substrate. The lens element includes an optical zone, corresponding to the light-transmission part of the substrate, and an extended zone disposed outside the optical zone. A trench or protrusion is formed as an alignment guide on one or both sides of the substrate, adjacent to the light-transmission part, and a protrusion or trench, aligned with the trench or protrusion, is formed in the extended zone of the lens element. The lens element is aligned on the substrate such that an inclined portion of the protrusion contacts corners of the trench.
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Citations
22 Claims
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1. A wafer-scale lens comprising:
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a substrate comprising a light-transmission part and a first alignment guide disposed outside the light-transmission part; and a first lens element comprising an optical zone, an extended zone disposed outside the optical zone, and a second alignment guide disposed in the extended zone, wherein one of the first alignment guide and the second alignment guide is a trench and another of the first alignment guide and the second alignment guide is a protrusion; and wherein the lens element is disposed on the substrate such that the optical zone is aligned with the light-transmission part and the first alignment guide is aligned with the second alignment guide such that an inclined portion of the protrusion contacts corners of the trench. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A wafer-level lens module comprising:
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a first wafer-scale lens comprising a first substrate and a first lens element disposed on one side of the first substrate; and a second wafer-scale lens, spaced a predetermined distance from the first wafer-scale lens, comprising a second substrate and a second lens element disposed on one side of the second substrate, wherein; the first substrate comprises a light-transmission part and a first trench disposed outside the light-transmission part, the first lens element comprises an optical zone, an extended zone disposed outside the optical zone, and a protrusion disposed in the extended zone, and the first lens element is disposed on the one side of the first substrate such that the optical zone is aligned with the light-transmission part, and the protrusion is aligned with the first trench such that an inclined portion of the protrusion of contacts corners of the first trench. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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21. A wafer-scale lens module comprising:
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a first substrate comprising a first through hole, a first trench disposed on a first side of the first substrate and adjacent to an edge portion of the first through hole, and a second trench disposed on a second side of the first substrate and adjacent to the edge portion of the first through hole; a first lens element comprising a first optical zone, a first extended zone disposed outside the first optical zone, and a protrusion disposed in the first extended zone, wherein the first lens element is disposed on the first side of the first substrate such that the first optical zone is aligned with the first through hole and the protrusion of the first lens element is aligned with the first trench such that an inclined portion of the protrusion of the first lens element contacts corners of the first trench; a second lens element comprising a second optical zone, a second extended zone disposed outside the second optical zone, and a protrusion disposed in the second extended zone, wherein the second lens element is disposed on the second side of the first substrate such that the second optical zone is aligned with the first through hole and the protrusion of the second lens element is aligned with the second trench such that an inclined portion of the protrusion of the second lens element contacts corners of the second trench; a second substrate comprising a second through hole and a third trench disposed on a first side of the second substrate and adjacent to an edge portion of the second through hole; and a third lens element comprising a third optical zone, a third extended zone disposed outside the third optical zone, and a protrusion disposed in the third extended zone, wherein the third lens element is disposed on the first side of the second substrate such that the third optical zone is aligned with the second through hole and the protrusion of the third lens element is aligned with the third trench such that an inclined portion of the protrusion of the third lens element contacts corners of the third trench.
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22. An image pickup device comprising:
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a first substrate comprising a first through hole, a first trench disposed on a first side of the first substrate and adjacent to an edge portion of the first through hole, and a second trench disposed on a second side of the first substrate and adjacent to the edge portion of the first through hole; a first lens element comprising a first optical zone, a first extended zone disposed outside the first optical zone, and a protrusion disposed in the first extended zone, wherein the first lens element is disposed on the first side of the first substrate such that the first optical zone is aligned with the first through hole and the protrusion of the first lens element is aligned with the first trench such that an inclined portion of the protrusion of the first lens element contacts corners of the first trench; a second lens element comprising a second optical zone, a second extended zone disposed outside the second optical zone, and a protrusion disposed in the second extended zone, wherein the second lens element is disposed on the second side of the first substrate such that the second optical zone is aligned with the first through hole and the protrusion of the second lens element is aligned with the second trench such that an inclined portion of the protrusion of the second lens element contacts corners of the second trench; a second substrate comprising a second through hole and a third trench disposed on a first side of the second substrate and adjacent to an edge portion of the second through hole; a third lens element comprising a third optical zone, a third extended zone disposed outside the third optical zone, and a protrusion disposed in the third extended zone, wherein the third lens element is disposed on the first side of the second substrate such that the third optical zone is aligned with the second through hole and the protrusion of the third lens element is aligned with the third trench such that an inclined portion of the protrusion of the third lens element contacts corners of the third trench; an image sensor which senses images received through the third lens element; and at least one spacer interposed along an edge portion between the first substrate and the second substrate, which spaces the first substrate a predetermined distance from the second substrate.
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Specification