Lens module
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorJin Hwa Jung
Life of this patent
Estimating the term…
Abstract
A lens module includes a first lens, an object-side surface thereof being convex; a second lens, both surfaces thereof being convex; a third lens, both surfaces thereof being concave; a fourth lens having positive refractive power, both surfaces thereof being convex; a fifth lens, an object-side surface thereof being concave; and a sixth lens, an object-side surface thereof being convex. The first to sixth lenses are sequentially disposed in numerical order from the first lens to the sixth lens from an object side of the lens module toward an image side of the lens module.
Claims12
A lens module comprising:
- a first lens having a negative refractive power;
- a second lens having a positive refractive power;
- a third lens having a refractive power;
- a fourth lens having a convex object-side surface in an optical axis portion thereof;
- a fifth lens having a refractive power;
- and
- a sixth lens having a negative refractive power and a convex object-side surface in an optical axis portion thereof,
- wherein the first to sixth lenses are sequentially disposed in ascending numerical order along an optical axis of the lens module from an object side of the lens module toward an image plane of the lens module,
- an absolute value of a radius of curvature of an image-side surface of the first lens at the optical axis is greater than an absolute value of a radius of curvature of an image-side surface of the third lens at the optical axis,
- an absolute value of a radius of curvature of an object-side surface of the third lens at the optical axis is greater than an absolute value of a radius of curvature of an image-side surface of the fourth lens at the optical axis,
- an absolute value of a radius of curvature of an object-side surface of the fifth lens at the optical axis is greater than an absolute value of a radius of curvature of the image-side surface of the fourth lens at the optical axis, and
- a distance along the optical axis from the image-side surface of the first lens to an object-side surface of the second lens is greater than a distance along the optical axis from the image-side surface of the fourth lens to the object-side surface of the fifth lens.
A lens module comprising:
- a first lens having a negative refractive power;
- a second lens having a refractive power;
- a third lens having a negative refractive power;
- a fourth lens having a convex object-side surface in an optical axis portion thereof;
- a fifth lens having a negative refractive power;
- and
- a sixth lens having a refractive power,
- wherein the first to sixth lenses are sequentially disposed in ascending numerical order along an optical axis of the lens module from an object side of the lens module toward an image plane of the lens module,
- an absolute value of a radius of curvature of an image-side surface of the first lens at the optical axis is greater than an absolute value of a radius of curvature of an image-side surface of the third lens at the optical axis,
- an absolute value of a radius of curvature of an object-side surface of the fifth lens at the optical axis is greater than an absolute value of a radius of curvature of an image-side surface of the fourth lens at the optical axis, and
- a distance along the optical axis from the image-side surface of the first lens to an object-side surface of the second lens is greater than a distance along the optical axis from the image-side surface of the fourth lens to the object-side surface of the fifth lens.
Dependencies are inferred from the claim text.