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US 9,791,671 B2Granted
Optical system
AssigneeSamsung Electo-Mechanics Co., Ltd.
InventorYong Joo Jo
Life of this patent
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Abstract
There is provided an optical system including a first lens, a second lens, a third lens, a fourth lens including a negative refractive power, a fifth lens including negative power, and a sixth lens. An image-side surface of the fourth lens is convex in a paraxial region. An image-side surface of the fifth lens is convex in the paraxial region. The sixth lens includes an image-side surface that is concave in the paraxial region. The first to sixth lenses are sequentially disposed from an object side to an image side.
Claims16
An optical system, comprising:
- a first lens comprising a negative refractive power;
- a second lens comprising a positive refractive power;
- a third lens comprising a positive refractive power;
- a fourth lens comprising a negative refractive power, wherein an image-side surface of the fourth lens is convex in a paraxial region;
- a fifth lens comprising a negative refractive power, wherein an image-side surface of the fifth lens is convex in the paraxial region;
- and
- a sixth lens comprising a positive refractive power, wherein an image-side surface of the sixth lens is concave in the paraxial region,
- wherein the first to sixth lenses are sequentially disposed from an object side to an image side, and
- wherein, FOV, a field of view of the optical system satisfies FOV>85°.
6 more elements
An optical system, comprising:
- a first lens comprising a negative refractive power;
- a second lens comprising a positive refractive power;
- a third lens comprising a positive refractive power;
- a fourth lens comprising a negative refractive power;
- a fifth lens comprising a negative refractive power and an image-side surface that is convex in a paraxial region;
- and
- a sixth lens comprising a positive refractive power and an image-side surface that is concave in the paraxial region,
- wherein the first to sixth lenses are sequentially disposed from an object side to an image side, and
- wherein, FOV, a field of view of the optical system satisfies FOV>85°.
6 more elements
Dependencies are inferred from the claim text.