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US 11,378,784 B2Granted
Optical system
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorJu Hwa Son
Life of this patent
Estimating the term…
Abstract
An optical system includes a first lens having negative refractive power and having two concave surfaces, a second lens having positive refractive power, a third lens having refractive power, a fourth lens having refractive power, a fifth lens having refractive power, a sixth lens having refractive power, and a seventh lens having refractive power. The first to seventh lenses are sequentially disposed from an object side.
Claims12
An optical system comprising:
- a first lens having a negative refractive power;
- a second lens having a positive refractive power;
- a third lens having a positive refractive power;
- a fourth lens having a refractive power;
- a fifth lens having a negative refractive power;
- a sixth lens having a positive refractive power;
- and
- a seventh lens having a negative refractive power,
- wherein the first to seventh lenses are sequentially disposed from an object side of the optical system toward an image side of the optical system, and
- 53°<ANG/Fno<61° is satisfied, where ANG is a field of view of the optical system and Fno is a constant indicating a brightness of the optical system.
7 more elements
Dependencies are inferred from the claim text.