Back to results
US 12,461,344 B2Granted
Optical imaging system
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsHag Chul Kim, Hyuk Joo Kim, Kyu Min Chae
Life of this patent
Estimating the term…
Abstract
An optical imaging system includes a first lens having negative refractive power, a second lens having negative refractive power, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. The first to seventh lenses are sequentially disposed from an object side toward an image side. The third lens and the seventh lens are formed of plastic, and the first lens, the second lens, the fourth lens, the fifth lens, and the sixth lens are formed of glass.
Claims12
An optical imaging system comprising:
- a first lens having negative refractive power;
- a second lens having negative refractive power;
- a third lens comprising a concave object-side surface and a convex image-side surface;
- a fourth lens having refractive power;
- a fifth lens having refractive power;
- a sixth lens having negative refractive power;
- and
- a seventh lens having positive refractive power,
- wherein the optical imaging system comprises a total of seven lenses and the first to seventh lenses are sequentially disposed from an object side toward an image side such that the fifth lens is spaced apart from the fourth lens at an optical axis,
- wherein TTL is a distance from an object-side surface of the first lens to an imaging plane of an image sensor, IMGH is a half of a diagonal length of the imaging plane of the image sensor, and TTL/(2*IMGH)<3.05.
7 more elements
Dependencies are inferred from the claim text.