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US 2026/0287860 A1Published application
Optical imaging system
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsJae Hyuk HUH, Byung Hyun KIM, So Mi YANG
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Abstract
An optical imaging system is provided. The optical imaging system includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens disposed in order from an object side to an imaging side. The first lens has positive refractive power, while the second lens has negative refractive power. TTL>10.2 mm, and TTL/(2×IMG HT)≤1.7, where TTL is a distance from an object-side surface of the first lens to an imaging plane on an optical axis, and IMG HT is equal to half a diagonal length of the imaging plane.
Claims16
An optical imaging system, comprising:
- a first lens having positive refractive power, a convex object-side surface in a paraxial region thereof and a convex image-side surface in the paraxial region thereof;
- a second lens having negative refractive power, a convex object-side surface in a paraxial region thereof and a concave image-side surface in the paraxial region thereof;
- a third lens having negative refractive power, a convex object-side surface in a paraxial region thereof and a concave image-side surface in the paraxial region thereof;
- a fourth lens having refractive power;
- and
- a fifth lens having refractive power,
- wherein the first to fifth lenses are disposed in order from an object side to an imaging side,
- wherein the optical imaging system has a total of five lenses, and
- 0.8
- ≤
- TTL
- /
- f
- ≤
- 1.05
- ,
- where TTL is a distance from the object-side surface of the first lens to an imaging plane on an optical axis, and f is a total focal length of the optical imaging system.
14 more elements
Dependencies are inferred from the claim text.