Back to results
US 2021/0263267 A1Published application
Optical imaging system
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsPhil Ho JUNG, Jae Hyuk HUH
Life of this patent
Estimating the term…
Abstract
An optical imaging system includes 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. At least two of the first lens, the second lens, the third lens, the fourth lens, the fifth lens, and the sixth lens include at least one inflection point. An object-side surface of the sixth lens is concave.
Claims15
An optical imaging system comprising:
- a first lens comprising positive refractive power;
- a second lens comprising negative refractive power, a convex object-side surface, and a concave image-side surface;
- a third lens comprising a convex object-side surface;
- a fourth lens comprising a convex object-side surface;
- a fifth lens comprising a refractive power;
- and
- a sixth lens comprising a refractive power,
- wherein the first to sixth lenses are sequentially disposed in ascending numerical order from an object side of the optical imaging system toward an imaging plane of the optical imaging system,
- an absolute value of a curvature of the object-side surface of the second lens is larger than an absolute value of a curvature of an image-side surface of the first lens,
- an absolute value of a curvature of an image-side surface of the third lens is larger than an absolute value of a curvature of an object-side surface of the fourth lens, and
- −0.7<f1/f2, where f1 is a focal length of the first lens and f2 is a focal length of the second lens.
8 more elements
An optical imaging system comprising:
- a first lens comprising positive refractive power;
- a second lens comprising negative refractive power, a convex object-side surface, and a concave image-side surface;
- a third lens comprising a convex object-side surface;
- a fourth lens comprising a convex object-side surface;
- a fifth lens comprising a refractive power;
- and
- a sixth lens comprising a convex image-side surface,
- wherein the first to sixth lenses are sequentially disposed in ascending numerical order from an object side of the optical imaging system toward an imaging plane of the optical imaging system, and
- −0.7<f1/f2, where f1 is a focal length of the first lens and f2 is a focal length of the second lens.
6 more elements
Dependencies are inferred from the claim text.