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US 2026/0160980 A1Published application
Optical imaging system
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsHag Chul KIM, Yong Joo JO, Hwan Soo PARK
Life of this patent
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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, the fourth lens, the sixth lens, and the seventh lens are formed of plastic, and the first lens, the second lens, and the fifth lens are formed of glass.
Claims17
An optical imaging system comprising:
- a first lens having a negative refractive power, a convex object-side surface in a paraxial region thereof and a concave image-side surface in a paraxial region thereof;
- a second lens having a negative refractive power;
- a third lens having a positive refractive power;
- a fourth lens having a negative refractive power;
- a fifth lens having a refractive power;
- a sixth lens having a refractive power;
- and
- a seventh lens having a negative refractive power,
- wherein the first to seventh lenses are sequentially disposed from an object side toward an image side,
- wherein the optical imaging system has a total of seven lenses, and
- wherein n4<1.64 is satisfied, where n4 is a refractive index of the fourth lens.
8 more elements
Dependencies are inferred from the claim text.