Back to results
US 2024/0402471 A1Published application
Optical imaging system
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsHag Chul KIM, Phil Ho JUNG, Yong Joo JO
Life of this patent
Estimating the term…
Abstract
An optical imaging system includes a first lens group, a second lens group, and a third lens group, sequentially arranged from an object side, wherein the first lens group includes two lenses having negative and positive refractive power, the second lens group includes a plurality of lenses, and the third lens group includes two lenses having negative and positive refractive power.
Claims8
An optical imaging system comprising:
- a first lens having a refractive power;
- a second lens having positive refractive power;
- a third lens having a refractive power;
- a fourth lens having positive refractive power;
- a fifth lens having a refractive power;
- a sixth lens having positive refractive power;
- and
- a seventh lens having a refractive power,
- wherein the first to seventh lens are sequentially disposed from an object side toward an imaging plane, and
- wherein 0.3<ft/f2<1.0, 0.2<fw/f6<0.6, −2.0<fw/f7<−1.0, and 0.8<TTL/ft<1.2,
- where f2 is a focal length of the second lens, f6 is a focal length of the sixth lens, f7 is a focal length of the seventh lens, fw is a focal length of the optical imaging system at a most wide-angle end, ft is a focal length of the optical imaging system at a telephoto end, and TTL is a distance from an object-side surface of the first lens to the imaging plane.
8 more elements
Dependencies are inferred from the claim text.