Image capturing optical assembly, imaging apparatus and electronic device
US-2019056568-A1 · Feb 21, 2019 · US
Optical imaging system
US2024310608A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2024310608-A1 |
| Application number | US-202418671377-A |
| Country | US |
| Kind code | A1 |
| Filing date | May 22, 2024 |
| Priority date | Aug 18, 2017 |
| Publication date | Sep 19, 2024 |
| Grant date | — |
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- Title
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- Abstract
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Abstract
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An optical imaging system includes: a first lens having a concave image-side surface; a second lens having refractive power; a third lens having a concave image-side surface; a fourth lens having a concave object-side surface or a convex image-side surface; a fifth lens having refractive power; a sixth lens having a concave image-side surface; and a seventh lens having negative refractive power. The first to seventh lenses are sequentially disposed from an object side and 1.62<(N2+N5+N6)/3, where N2 is a refractive index of the second lens, N5 is a refractive index of the fifth lens, and N6 is a refractive index of the sixth lens.
First claim
Opening claim text (preview).
What is claimed is: 1 . An optical imaging system comprising: a first lens comprising a refractive power; a second lens comprising a refractive power; a third lens comprising a refractive power; a fourth lens comprising a refractive power; a fifth lens comprising a refractive power; a sixth lens comprising negative refractive power; and a seventh lens comprising a refractive power, wherein the first to seventh lenses are sequentially disposed from an object side, wherein an ƒ-number of the optical imaging system is 1.8 or less, and wherein 1.1<|f/f1|+|f/f2|<2.1, where f is a focal length of the optical imaging system, f1 is a focal length of the first lens, and f2 is a focal length of the second lens. 2 . The optical imaging system of claim 1 , wherein the first lens has a convex object-side surface. 3 . The optical imaging system of claim 1 , wherein the second lens has a convex object-side surface. 4 . The optical imaging system of claim 1 , wherein the third lens has a convex object-side surface. 5 . The optical imaging system of claim 1 , wherein the fifth lens has a concave object-side surface. 6 . The optical imaging system of claim 1 , wherein the sixth lens has a concave image-side surface. 7 . The optical imaging system of claim 1 , wherein the seventh lens has a convex object-side surface. 8 . An optical imaging system comprising: a first lens comprising a refractive power; a second lens comprising a refractive power; a third lens comprising a refractive power; a fourth lens comprising a refractive power; a fifth lens comprising a refractive power; a sixth lens comprising a refractive power; and a seventh lens comprising negative refractive power, wherein the first to seventh lenses are sequentially disposed from an object side, wherein a radius of curvature of an image-side surface of the second lens is greater than a radius of curvature of an object-side surface of the seventh lens, wherein an ƒ-number of the optical imaging system is 1.8 or less, and wherein 1.1<|f/f1|+|f/f2|<2.1, where f is a focal length of the optical imaging system, f1 is a focal length of the first lens, and f2 is a focal length of the second lens. 9 . The optical imaging system of claim 8 , wherein the first lens has a convex object-side surface. 10 The optical imaging system of claim 8 , wherein the second lens has a convex object-side surface. 11 . The optical imaging system of claim 8 , wherein the third lens has a convex object-side surface. 12 . The optical imaging system of claim 8 , wherein the sixth lens has a concave image-side surface. 13 . The optical imaging system of claim 8 , wherein the seventh lens has a concave image-side surface. 14 . The optical imaging system of claim 8 , wherein the seventh lens has an inflection point formed on an image-side surface thereof.
Assignees
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Classifications
having more than six components · CPC title
with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration {(G02B13/002 takes precedence)} · CPC title
- G02B13/0045Primary
having five or more lenses · CPC title
- G02B13/0015Primary
characterised by the lens design · CPC title
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Frequently asked questions
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- What does patent US2024310608A1 cover?
- An optical imaging system includes: a first lens having a concave image-side surface; a second lens having refractive power; a third lens having a concave image-side surface; a fourth lens having a concave object-side surface or a convex image-side surface; a fifth lens having refractive power; a sixth lens having a concave image-side surface; and a seventh lens having negative refractive power…
- Who is the assignee on this patent?
- Samsung Electro Mech
- What technology area does this patent fall under?
- Primary CPC classification G02B13/0045. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Thu Sep 19 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).