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US 2021/0063686 A1Published application
Optical imaging system and portable electronic device
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsHag Chul KIM, Yong Joo JO, Che Young LIM
Life of this patent
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Abstract
An optical imaging system includes a first lens, a second lens, a third lens, and a fourth lens disposed in order from an object side. The optical imaging system satisfies 4.0<f/IMG_HT<5.0, where f is a focal length of the optical imaging system, and IMG_HT is one-half of a diagonal length of an imaging plane.
Claims18
An optical imaging system, comprising:
- a first lens, a second lens, a third lens, and a fourth lens disposed in order from an object side,
- wherein 4.0<f/IMG_HT<5.0, where f is a focal length of the optical imaging system, and IMG_HT is one-half of a diagonal length of an imaging plane.
An optical imaging system, comprising:
- a first prism configured to emit light incident along a first optical axis in a direction of a second optical axis intersecting the first optical axis;
- a first lens having a convex image-side surface;
- a second lens having a concave image-side surface;
- a third lens having refractive power;
- and
- a fourth lens having a convex object-side surface,
- wherein the first prism, the first lens, the second lens, the third lens, and the fourth lens are disposed in order in the direction of the second optical axis, and
- wherein 1.0<PTTL/f<2.0, where PTTL is a distance from a reflective surface of the first prism to an imaging plane, and f is a focal length of the optical imaging system.
5 more elements
Dependencies are inferred from the claim text.