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US 11,454,782 B2Granted
Imaging lens system
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsKil Soo Shin, Yong Joo Jo
Life of this patent
Estimating the term…
Abstract
An imaging lens system includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens, sequentially disposed at intervals from an object side of the imaging lens system. A refractive index of each of the second lens, the third lens, the fourth lens, and the fifth lens is 1.6 or greater, and TTL/2IH<0.730, where TTL is a distance from an object side surface of the first lens to an imaging plane, and 2IH is a diagonal length of the imaging plane.
Claims17
An imaging lens system comprising:
- a first lens, a second lens, a third lens, a fourth lens, and a fifth lens spaced apart from each other and sequentially disposed in ascending numerical order along an optical axis of the imaging lens system from an object side of the imaging lens system toward an imaging plane of the imaging lens system, wherein a refractive index of each of the second lens, the third lens, the fourth lens, and the fifth lens is 1.6 or greater, the third lens has a convex image-side surface in a paraxial region thereof, and TTL/2IH<0.730, where TTL is a distance along the optical axis from an object-side surface of the first lens to the imaging plane, and 2IH is a diagonal length of the imaging plane.
An imaging lens system comprising:
- a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens spaced apart from each other and sequentially disposed along an optical axis of the imaging lens system in ascending numerical order from an object side of the imaging lens system toward an imaging plane of the imaging lens system, wherein TTL/2IH<0.613, where TTL is a distance along the optical axis from an object-side surface of the first lens to the imaging plane, and 2IH is a diagonal length of the imaging plane.
An imaging lens system comprising:
- a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens spaced apart from each other and sequentially disposed along an optical axis of the imaging lens system from an object side of the imaging lens system toward an imaging plane of the imaging lens system,
- wherein the third lens has a convex image-side surface in a paraxial region thereof, the fourth lens has a concave image-side surface in a paraxial region thereof;
- the fifth lens has a negative refractive power and a refractive index of 1.6 or greater, and TTL/2IH<0.730, where TTL is a distance along the optical axis from an object-side surface of the first lens to the imaging plane, and 2IH is a diagonal length of the imaging plane.
Dependencies are inferred from the claim text.