Lens module
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsPhil Ho Jung, Young Gi Kim
Life of this patent
Estimating the term…
Abstract
There is provided a lens module, including: a first lens having positive refractive power, an object-sided surface thereof being convex; a second lens having negative refractive power, an image-sided surface thereof being concave; a third lens having positive refractive power; a fourth lens having negative refractive power, an image-sided surface thereof being convex; and a fifth lens having negative refractive power, an image-sided surface thereof being concave, wherein the fourth lens satisfies Conditional Expression 1, f4/f<−3.0 [Conditional Expression 1] where f is an overall focal distance of an optical system and f4 is a focal distance of the fourth lens.
Claims31
1-13. (canceled)
A lens module, comprising:
- a first lens having positive refractive power and being convex toward an object side;
- a second lens having negative refractive power and being convex toward the object side and concave toward an image side;
- a third lens having positive refractive power and being concave toward the object side and convex toward the image side;
- a fourth lens having negative refractive power and being concave toward the object side and convex toward the image side;
- and
- a fifth lens having a refractive power and comprising:
- an object-side surface being convex in the center and concave at the periphery;
- and
- an image-side surface being concave in the center and convex at the periphery,
- wherein:
- at least one inflection point is formed on the object-side and image-side surfaces of the fifth lens,
- the third and fourth lenses have a meniscus shape, and
- the first lens, the second lens, the third lens, the fourth lens and the fifth lens are sequentially arranged from the object side toward the image side.
A lens module, comprising:
- a first lens having positive refractive power and being convex toward an object side and concave toward an image side;
- a second lens having negative refractive power and being convex toward the object side and concave toward the image side;
- a third lens having positive refractive power and being concave toward the object side and convex toward the image side;
- a fourth lens having negative refractive power and being concave toward the object side and convex toward the image side;
- and
- a fifth lens having refractive power and comprising:
- an object-side surface being convex in the center and concave at the periphery;
- and
- an image-side surface being concave in the center and convex at the periphery,
- wherein:
- at least one inflection point is formed on the object-side and image-side surfaces of the fifth lens,
- the third and fourth lenses have a meniscus shape, and
- the first lens, the second lens, the third lens, the fourth lens and the fifth lens are sequentially arranged from the object side toward the image side.
Dependencies are inferred from the claim text.