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US 11,635,592 B2Granted
Optical imaging system
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsJae Hyun Baik, Yong Joo Jo
Life of this patent
Estimating the term…
Abstract
An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens sequentially disposed in ascending numerical order along an optical axis from an object side of the optical imaging system toward an imaging plane of the optical imaging system. Four or more lenses among the first to seventh lenses have a refractive index greater than 1.6.
Claims18
An optical imaging system comprising:
- a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens sequentially disposed in ascending numerical order along an optical axis from an object side of the optical imaging system toward an imaging plane of the optical imaging system,
- wherein four or more lenses among the first to seventh lenses have a refractive index greater than 1.6,
- the second lens has a convex object-side surface along the optical axis,
- the fifth lens has a concave image-side surface along the optical axis, and
- the optical imaging system satisfies the following conditional expression:
- V2+V3<V1
- where V1 represents an Abbe number of the first lens, V2 represents an Abbe number of the second lens, and V3 represents an Abbe number of the third lens.
4 more elements
An optical imaging system comprising:
- a first lens having a positive refractive power;
- a second lens having a refractive index greater than or equal to 1.65;
- a third lens having a positive refractive power and a refractive index greater than or equal to 1.65;
- a fourth lens having a positive refractive power;
- a fifth lens having a refractive index greater than or equal to 1.65;
- a sixth lens having a refractive index greater than or equal to 1.65;
- and
- a seventh lens having a positive refractive power,
- wherein the first to seventh lenses are sequentially disposed in ascending numerical order along an optical axis from an object side of the optical imaging system toward an imaging plane of the optical imaging system.
6 more elements
An optical imaging system comprising:
- a first lens having a positive refractive power;
- a second lens having a negative refractive power and a convex object-side surface along the optical axis;
- a third lens having a positive refractive power;
- a fourth lens having a positive refractive power;
- a fifth lens having a positive refractive power and a concave image-side surface along an optical axis;
- a sixth lens having a negative refractive power;
- and
- a seventh lens having a positive refractive power,
- wherein the first to seventh lenses are sequentially disposed along the optical axis from an object side of the optical imaging system toward an imaging plane of the optical imaging system,
- the second lens, the third lens, the fifth lens, and the sixth lens each have a refractive index greater than or equal to 1.65, and
- an F number of the optical imaging system is less than or equal to 2.09.
8 more elements
Dependencies are inferred from the claim text.