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US 10,852,507 B2Granted
Optical imaging system
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorJu Hwa Son
Life of this patent
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Abstract
An optical imaging system includes a first lens having a positive refractive power, a second lens having a negative refractive power, a third lens having a positive refractive power, a fourth lens having a positive refractive power, a fifth lens having a negative refractive power, and a sixth lens having a negative refractive power. The first to sixth lenses are sequentially disposed from an object side to an imaging plane. An Abbe number of the second lens is 21 or less.
Claims14
An optical imaging system comprising:
- a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens sequentially disposed from an object side to an imaging plane,
- wherein an object-side surface of the third lens is convex along an optical axis,
- wherein the third lens comprises a positive refractive power, and
- wherein TTL/2ImgHT<0.695 in which TTL represents a distance from an object-side surface of a lens closest to the object side among the plurality of lenses to an imaging plane and 2ImgHT represents a diagonal length of an imaging plane.
1 more element
Dependencies are inferred from the claim text.