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US 11,698,513 B2Granted
Optical system
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsYong Joo Jo, Jae Hyun Baik
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Abstract
An optical system includes a first through six lenses. The first lens includes a positive refractive power. The second lens includes a negative refractive power. The third lens includes a positive refractive power. The fourth lens includes a negative refractive power and the fifth lens includes a negative refractive power. The sixth lens includes a positive refractive power and an inflection point formed on an image-side surface thereof and 70<FOV is satisfied, where FOV is a field of view of the optical system.
Claims8
An optical system, comprising:
- a first lens;
- a second lens comprising a negative refractive power;
- a third lens of the lenses comprising a concave object-side surface;
- a fourth lens comprising a negative refractive power and a convex image-side surface;
- a fifth lens comprising a negative refractive power, an image-side surface including an inflection point, and a concave object-side surface;
- and
- a sixth lens comprising a convex object-side surface,
- wherein the fourth and the fifth lenses comprise a same refractive index,
- wherein the first to sixth lenses are sequentially disposed from an object side to an image side,
- wherein a radius of curvature of an image-side surface of the sixth lens is greater than a radius of curvature of the object-side surface of the sixth lens, and
- wherein the optical system has a total number of six lenses with refractive power.
8 more elements
Dependencies are inferred from the claim text.