Lens module
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorJin Hwa Jung
Life of this patent
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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.
Claims17
A lens module comprising:
- a first lens having a convex object-side surface in an optical axis portion thereof;
- a second lens having a convex object-side surface in an optical axis portion thereof and a convex image-side surface in an optical axis portion thereof;
- a third lens having a concave object-side surface in an optical axis portion thereof and a concave image-side surface in an optical axis portion thereof;
- a fourth lens having a positive refractive power, a convex object-side surface in an optical axis portion thereof, a convex image-side surface in an optical axis portion thereof, and a focal length in a range of 2.0 mm to 2.40 mm;
- a fifth lens having a concave object-side surface in an optical axis portion thereof;
- and
- a sixth lens having a convex object-side surface in an optical axis portion thereof and an image-side-surface having one or more inflection points thereon,
- 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, and
- (r9+r10)/(r9−r10)<−6.0 is satisfied, where r9 is a radius of curvature of the object-side surface of the fifth lens on the optical axis, and r10 is a radius of curvature of an image-side surface of the fifth lens on the optical axis.
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 positive refractive power and a focal length in a range of 2.0 mm to 2.40 mm;
- a fifth lens having a negative refractive power;
- and
- a sixth lens having a negative refractive power and an image-side surface having one or more inflection points,
- 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, and
- (r9+r10)/(r9−r10)<−6.0 is satisfied, where r9 is a radius of curvature of an object-side surface of the fifth lens on the optical axis, and r10 is a radius of curvature of an image-side surface of the fifth lens on the optical axis.
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 negative refractive power;
- a fourth lens having a positive refractive power and a focal length in a range of 2.0 mm to 2.40 mm;
- a fifth lens having a negative refractive power;
- and
- a sixth lens having a refractive power and an image-side surface having one or more inflection points,
- 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, and
- (r9+r10)/(r9−r10)<−6.0 is satisfied, where r9 is a radius of curvature of an object-side surface of the fifth lens on the optical axis, and r10 is a radius of curvature of an image-side surface of the fifth lens on the optical axis.
A lens module comprising:
- a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens each having a respective refractive power 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,
- wherein the third lens has a concave object-side surface in an optical axis portion thereof and a concave image-side surface in an optical axis portion thereof,
- a sign of the refractive power of the first lens is the same as a sign of the refractive power of the fifth lens,
- a sign of the refractive power of the second lens is the same as a sign of the refractive power of the fourth lens,
- the fourth lens has a focal length in a range of 2.0 mm to 2.40 mm, and
- (r9+r10)/(r9−r10)<−6.0 is satisfied, where r9 is a radius of curvature of an object-side surface of the fifth lens on the optical axis, and r10 is a radius of curvature of an image-side surface of the fifth lens on the optical axis.
Dependencies are inferred from the claim text.