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US 11,768,350 B2Granted
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.
Claims16
An optical imaging system, comprising:
- a prism
- a first lens comprising positive refractive power;
- a second lens comprising negative refractive power;
- a third lens comprising positive refractive power;
- and
- a fourth lens comprising positive refractive power,
- wherein the prism and the first to fourth lenses are sequentially disposed in order from an object side to an image plane,
- wherein the optical imaging system has a total number of four lenses, and
- wherein 1.0<PTTL/f<2.0, where PTTL is a distance from the reflective surface of the prism to the imaging plane and f is a focal length of the optical imaging system.
6 more elements
An optical imaging system, comprising:
- a prism
- a first lens comprising positive refractive power;
- a second lens comprising a refractive power;
- a third lens comprising positive refractive power and convex image-side surface;
- and
- a fourth lens comprising positive refractive power,
- wherein the prism and the first to fourth lenses are sequentially disposed in order from an object side to an image plane,
- wherein the optical imaging system has a total number of four lenses, and
- wherein 1.0<PTTL/f<2.0, where PTTL is a distance from the reflective surface of the prism to the imaging plane and f is a focal length of the optical imaging system.
6 more elements
Dependencies are inferred from the claim text.