Optical imaging system
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorTae Youn Lee
Life of this patent
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Abstract
An optical imaging system includes a first lens including a negative refractive power and a convex object-side surface, and a second lens including a convex object-side surface and a convex image-side surface. The optical imaging system also includes a third lens including a negative refractive power and a convex object-side surface, a fourth lens including a convex image-side surface, a fifth lens, and a sixth lens including an inflection point formed on an image-side surface thereof. The first to sixth lenses are sequentially disposed in an optical-axis direction.
Claims13
An optical imaging system, comprising:
- a first lens comprising negative refractive power;
- a second lens comprising positive refractive power;
- a third lens comprising a convex object-side surface;
- a fourth lens comprising a refractive power;
- a fifth lens comprising a convex object-side surface and a convex image-side surface;
- and
- a sixth lens comprising a convex object-side surface and a concave image-side surface,
- wherein the first to sixth lenses are sequentially disposed in an optical-axis direction,
- wherein an absolute value of a radius of curvature of an object-side surface of the first lens is greater than an absolute value of a radius of curvature of the object-side surface of the third lens,
- wherein an absolute value of a radius of curvature of the object-side surface of the third lens is greater than an absolute value of a radius of curvature of an image-side surface of the second lens, and
- wherein a distance from an image-side surface of the first lens to an object-side surface of the second lens is greater than a distance from an image-side surface of the fourth lens to the object-side surface of the fifth lens.
An optical imaging system, comprising:
- a first lens comprising negative refractive power;
- a second lens comprising positive refractive power;
- a third lens comprising a convex object-side surface;
- a fourth lens comprising a refractive power;
- a fifth lens comprising a convex image-side surface;
- and
- a sixth lens comprising a concave image-sides surface,
- wherein the first to sixth lenses are sequentially disposed in an optical-axis direction,
- wherein an absolute value of a radius of curvature of the object-side surface of the third lens is greater than an absolute value of a radius of curvature of an image-side surface of the second lens,
- wherein a distance from an image-side surface of the first lens to an object-side surface of the second lens is greater than a distance from an image-side surface of the fourth lens to the object-side surface of the fifth lens, and
- wherein a thickness along an optical axis of the fourth lens is greater than a thickness along an optical axis of the second lens.
Dependencies are inferred from the claim text.