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US 2025/0155679 A1Published application
Optical imaging system
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsJong Pil KIM, Sot Eum SEO, Ji Su LEE
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Abstract
An optical imaging system includes a first lens, a second lens, and a third lens disposed in order from an object side. The optical imaging system satisfies 1.2 mm<TTL<2.0 mm and 0<f3/f<1.0, where TTL is a distance from an object-side surface of the first lens to an imaging plane, f is a focal length of the optical imaging system, and f3 is a focal length of the third lens.
Claims14
An optical imaging system comprising:
- a first lens, a second lens, and a third lens disposed in order from an object side,
- wherein the first lens has positive refractive power,
- wherein a radius of curvature of an object-side surface is greater than a radius of curvature of an image-side surface of the third lens, and
- wherein −0.8<f2/f<−0.3, where f is a focal length of the optical imaging system and f2 is a focal length of the second lens.
1 more element
An optical imaging system comprising:
- a first lens, a second lens, and a third lens disposed in order from an object side,
- wherein the first lens has positive refractive power, and
- wherein −0.8<f2/f<−0.3 and 4.0<D12/D23<6.0, where f is a focal length of the optical imaging system, f2 is a focal length of the second lens, D12 is a distance from an image-side surface of the first lens to an object-side surface of the second lens, and D23 is a distance from an image-side surface of the second lens to an object-side surface of the third lens.
Dependencies are inferred from the claim text.