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US 12,742,914 B2Granted
Optical imaging system
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsYou Jin Jeong, So Mi Yang, Dong Hyuk Jang
Life of this patent
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Abstract
An optical imaging system including a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens sequentially arranged from an object side toward an imaging plane, wherein an object-side surface of the sixth lens is convex, and wherein one of the first lens to the sixth lens is a variable focus lens configured to have a variable focal length.
Claims19
An optical imaging system comprising:
- a first lens having positive refractive power, a second lens having negative refractive power, a third lens, a fourth lens having positive refractive power, a fifth lens having negative refractive power, and a sixth lens sequentially arranged from an object side toward an imaging plane,
- wherein an image-side surface of the fifth lens is concave in a paraxial region,
- wherein an object-side surface of the sixth lens is convex in a paraxial region, and
- wherein the third lens is a variable focus lens configured to have a variable focal length.
1 more element
An optical imaging system comprising:
- a first lens having positive refractive power;
- a second lens having negative refractive power;
- a third lens having refractive power;
- a fourth lens having positive refractive power and having a convex object-side surface in a paraxial region and a convex image-side surface in a paraxial region;
- a fifth lens having negative refractive power, having a convex object-side surface in a paraxial region, and having a concave image-side surface in a paraxial region;
- and
- a sixth lens having refractive power,
- wherein the first lens to the sixth lens are sequentially arranged from an object-side surface,
- wherein the third lens is a variable lens configured to have a variable focal length, and
- wherein 0.001<f1/f6<0.026 in which f1 is a focal length of the first lens, and f6 is a focal length of the sixth lens.
7 more elements
An optical imaging system comprising:
- a first lens having positive refractive power, a second lens having negative refractive power, a third lens, a fourth lens having positive refractive power, a fifth lens having negative refractive power, and a sixth lens sequentially arranged from an object side toward an imaging plane,
- wherein an image-side surface of the fifth lens is concave in a paraxial region,
- wherein the third lens is a variable focus lens configured to have a variable focal length, and
- wherein 0.07<T1/TTL<0.20 in which T1 is a thickness of the first lens, TTL is a distance from an object-side surface of the first lens to the imaging plane.
1 more element
Dependencies are inferred from the claim text.