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US 2014/0368928 A1Published application
Imaging lens
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorYong Joo Jo
Life of this patent
Estimating the term…
Abstract
Disclosed herein is an imaging lens, including: a first lens having positive (+) power and being biconvex; a second lens having negative (−) power and being concave toward an image side; a third lens having positive (+) power and being biconvex; a fourth lens having positive (+) power and being convex toward the image side; and a fifth lens havign negative (−) power and being concave toward the image side, wherein the first lens, the second lens, the third lens, the fourth lens, and the fifth lens are sequentially disposed from an object side.
Claims31
1-11. (canceled)
An imaging lens, comprising:
- a first lens having positive (+) power and being convex toward an object side;
- a second lens having negative (−) power and being concave toward an image side;
- a third lens having positive (+) power and being convex toward the image side;
- a fourth lens having a power and being convex toward the image side;
- and
- a fifth lens having a power and being concave toward the image side, wherein an object-side surface of the fifth lens is convex in the center and concave at the periphery, and at least one inflection point is formed on an image-side surface of the fifth lens,
- wherein:
- the first lens, the second lens, the third lens, the fourth lens, and the fifth lens are sequentially disposed from the object side toward the image side,
- the second lens, the fourth lens, and the fifth lens have a meniscus shape,
- a radius of curvature of an object-side surface of the second lens is greater than a radius of curvature of an image-side surface of the second lens, and
- a radius of curvature of an object-side surface of the fourth lens is greater than a radius of curvature of an image-side surface of the fourth lens.
8 more elements
An imaging lens, comprising:
- a first lens having positive (+) power and being convex toward an object side;
- a second lens having negative (−) power and being convex toward the object side and concave toward an image side;
- a third lens having positive (+) power and being convex toward the image side;
- a fourth lens having a power and being concave toward the object side and convex toward the image side;
- and
- a fifth lens having a power and comprising:
- an object-side surface being convex in the center and concave at the periphery;
- and
- an image-side surface being concave in the center and convex at the periphery,
- wherein:
- the first lens, the second lens, the third lens, the fourth lens, and the fifth lens are sequentially disposed from the object side toward the image side,
- the second lens, the fourth lens, and the fifth lens have a meniscus shape,
- a radius of curvature of an object-side surface of the second lens is greater than a radius of curvature of an image-side surface of the second lens, and
- a radius of curvature of an object-side surface of the fourth lens is greater than a radius of curvature of an image-side surface of the fourth lens.
11 more elements
An imaging lens, comprising:
- a first lens having positive (+) power and being convex toward an object side;
- a second lens having negative (−) power and being concave toward an image side;
- a third lens having positive (+) power and being convex toward the image side;
- a fourth lens having a power and being convex toward the image side;
- and
- a fifth lens having a power and being concave toward the image side, wherein an object-side surface of the fifth lens is convex in the center and concave at the periphery, and at least one inflection point is formed on an image-side surface of the fifth lens,
- wherein:
- the first lens, the second lens, the third lens, the fourth lens, and the fifth lens are sequentially disposed from the object side toward the image side,
- the second lens, the fourth lens, and the fifth lens have a meniscus shape,
- a radius of curvature of an object-side surface of the fourth lens is greater than a radius of curvature of an image-side surface of the fourth lens, and
- a distance TTL on an optical axis from an object-side surface of the first lens to an image sensor and a total focal length F of the imaging lens satisfy the following conditional expression:
- 1.1<TTL/F<1.35.
9 more elements
An imaging lens, comprising:
- a first lens having positive (+) power and being convex toward an object side;
- a second lens having negative (−) power and being convex toward the object side and concave toward an image side;
- a third lens having positive (+) power and being convex toward the image side;
- a fourth lens having a power and being concave toward the object side and convex toward the image side;
- and
- a fifth lens having a power and comprising:
- an object-side surface being convex in the center and concave at the periphery;
- and
- an image-side surface being concave in the center and convex at the periphery,
- wherein:
- the first lens, the second lens, the third lens, the fourth lens, and the fifth lens are sequentially disposed from the object side toward the image side,
- the second lens, the fourth lens, and the fifth lens have a meniscus shape,
- a radius of curvature of an object-side surface of the fourth lens is greater than a radius of curvature of an image-side surface of the fourth lens,
- a radius of curvature of an object-side surface of the second lens is greater than a radius of curvature of an image-side surface of the second lens,
- the third lens has a smaller power than the first lens, and
- a distance TTL on an optical axis from an object-side surface of the first lens to an image sensor and a total focal length F of the imaging lens satisfy the following conditional expression:
- 1.1<TTL/F<1.35.
14 more elements
Dependencies are inferred from the claim text.