Lens module
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorJae Hyun BAIK
Life of this patent
Estimating the term…
Abstract
A lens module may include a first lens having positive refractive power, a second lens having refractive power, a third lens having positive refractive power, a fourth lens having refractive power, a fifth lens having refractive power, a sixth lens having refractive power, and a seventh lens having negative refractive power. An inflection point may be formed on an image-side surface of the sixth lens. A turning point may be formed on an image-side surface of the seventh lens. The first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens and the seventh lens are disposed in a sequential order from the first lens to the seventh lens.
Claims15
A lens module comprising:
- a first lens having a concave image-side surface;
- a second lens having a refractive power;
- a third lens having a convex object-side surface;
- a fourth lens having negative refractive power;
- a fifth lens having a concave object-side surface;
- a sixth lens having a refractive power;
- and
- a seventh lens having a refractive power,
- wherein the first to seventh lenses are sequentially disposed from an object side toward an image plane, and
- wherein a radius of curvature of an object-side surface of the sixth lens is greater than a radius of curvature of an image-side surface of the second lens.
A lens module comprising:
- a first lens having a refractive power;
- a second lens having negative refractive power;
- a third lens having a convex object-side surface;
- a fourth lens having a refractive power;
- a fifth lens having a refractive power;
- a sixth lens having positive refractive power and a concave image-side surface;
- and
- a seventh lens having a refractive power,
- wherein the first to seventh lenses are sequentially disposed from an object side toward an image plane, and
- wherein −2.0<R13/f<1.0,
- where f is a focal length of the lens module and R13 is a radius of curvature of an object-side surface of the seventh lens.
Dependencies are inferred from the claim text.