Abstract: A slim lens assembly includes a first lens, a second lens, a third lens, a fourth lens and a fifth lens, all of which are arranged in sequence from an object side to an image side along an optical axis. The first lens is a convex-concave lens with negative refractive power and includes a convex surface facing the object side and a concave surface facing the image side. The second lens is with positive refractive power. The third lens is a biconcave lens with negative refractive power. The fourth lens is a biconvex lens with positive refractive power. The fifth lens is a convex-concave lens with negative refractive power and includes a convex surface facing the object side and a concave surface facing the image side.

Abstract: An imaging lens includes a first lens having positive refractive power; a second lens having negative refractive power; a third lens having positive refractive power; a fourth lens having negative refractive power; and a fifth lens having object-side and image plane-side surfaces thereof being aspheric, arranged in this order from an object side to an image plane side. The first lens has a shape so that a curvature radius of a surface thereof on the object side is positive. The fifth lens has a shape so that a curvature radius of the surface thereof on the object side and a curvature radius of the surface thereof on the image plane side are positive. The second lens, the third lens, and the fourth lens are arranged so that a specific conditional expression is satisfied.

Abstract: A compact low-cost imaging lens which provides brightness with an F-value of 2.5 or less and a wide field of view and corrects aberrations properly, meeting the demand for low-profileness. The imaging lens elements are arranged in order from an object side, an aperture stop, positive first lens having convex object-side and image-side surfaces, negative meniscus second lens having a concave image-side surface, positive third lens having at least one aspheric surface, positive double-sided aspheric fourth lens, and negative double-sided aspheric fifth lens having concave object-side and image-side surfaces with its image-side surface having a pole-change point off the axis. It satisfies conditional expressions below: 0.5<f1/f<1.0??(1) 10.0<f3/f??(2) 0.8<(r3+r4)/(r3?r4)<2.

Abstract: A photographing lens and an electronic device including the same are provided. The photographing lens includes a first lens, a second lens, a meniscus third lens, a meniscus fourth lens, and a fifth lens. The first lens has a positive refractive power and an object side lens surface that is convex toward the object side. The second lens has negative refractive power and an image side lens surface that is convex toward the image side. The meniscus third lens has a positive refractive power and an image side lens surface that is concave toward the image side. The meniscus fourth lens has a positive refractive power and an image side lens surface that is convex toward the image side. The fifth lens has a negative refractive power and an image side lens surface that is concave toward the image side around an optical axis.

Abstract: An photographing optical lens assembly includes, in order from an object side to an image side, a first lens element with refractive power including a convex object-side surface, a second lens element with positive refractive power including a convex image-side surface, a third lens element with positive refractive power including a concave object-side surface and a convex image-side surface, a fourth lens element with negative refractive power, and a fifth lens element with positive refractive power including a convex object-side surface, a concave image-side surface and at least one inflection point. The surfaces of the fifth lens element are aspheric. By adjusting the photographing optical lens assembly, the total length of the photographing optical lens assembly is reduced, the aberration is corrected, and the image quality is improved.

Abstract: An image lens assembly system includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element and a seventh lens element. The first lens element has refractive power. The second lens element has positive refractive power. The third lens element has refractive power. The fourth lens element has refractive power. The fifth lens element has refractive power. The sixth lens element with refractive power is made of plastic material, and has at least one surface being aspheric. The seventh lens element with refractive power is made of plastic material and has a concave image-side surface, wherein the image-side surface thereof changes from concave in a paraxial region thereof to convex in a peripheral region thereof, and at least one surface thereof is aspheric.

Abstract: An exemplary embodiment of the present invention relates to an imaging lens, the imaging lens including, in an ordered way from an object side, a first lens having positive (+) refractive power, a second lens having negative (?) refractive power, a third lens having positive (+) refractive power, a fourth lens having negative (?) refractive power, and a fifth lens having a negative (?) refractive power, wherein the third lens takes a meniscus shape convexly formed at an object side.

Abstract: A compact low-cost imaging lens which provides high brightness with an F-value of 2.5 or less and a wide field of view and corrects aberrations properly, meeting the demand for low-profile design. The imaging lens elements are arranged in the following order from an object side to an image side: an aperture stop; a first lens with positive refractive power having a convex surface on each of the object and image sides; a second lens with negative refractive power; a third lens with positive refractive power having a convex surface on each of the object and image sides; a fourth lens with negative refractive power; and a fifth lens with negative refractive power as a double-sided aspheric lens. The imaging lens satisfies a conditional expression (1) below: 1.5<f3/f<5.0??(1) where f: focal length of the overall optical system of the imaging lens f3: focal length of the third lens.

Abstract: An image capturing optical lens system includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element. The first lens element with positive refractive power has a convex object-side surface. The second lens element has refractive power. The third lens element with positive refractive power has a convex image-side surface. The fourth lens element with negative refractive power has a concave object-side surface and a convex image-side surface, wherein the surfaces of the fourth lens element are aspheric. The fifth lens element with negative refractive power has a convex object-side surface and a concave image-side surface, wherein the surfaces of the fifth lens element are aspheric, and the fifth lens element has at least one inflection point on the image-side surface thereof.

Abstract: An imaging optical system, an imaging device, and a digital apparatus of the invention are provided with an optical system constituted of five lens elements having positive, negative, positive, positive, and negative refractive powers, or positive, negative, negative, positive, and negative refractive powers; and satisfy the conditional expressions: 1<f123/f<1.25 0.1<d6/f<0.15 0.30<f4/f<0.72 where f: a focal length of the entirety of the imaging optical system, f123: a combined focal length of the first lens element 11, the second lens element 12, and the third lens element 13, d6: a distance on the optical axis between the third lens element 13 and the fourth lens element 14, and f4: a focal length of the fourth lens element 14.

Abstract: An imaging lens includes a first lens having negative refractive power; a second lens having negative refractive power; a third lens having positive refractive power; a fourth lens having positive refractive power; and a fifth lens having negative refractive power. The first lens has object-side and image plane-side surfaces with positive curvature radii. The second lens has object-side and image plane-side surfaces with positive curvature radii. The third lens has an object-side surface with a positive curvature radius and an image plane-side surface with a negative curvature radius. The fourth lens has an object-side surface with a positive curvature radius and an image plane-side surface with a negative curvature radius. The fifth lens has object-side and image plane-side surfaces with negative curvature radii. The first to fifth lenses have specific Abbe's numbers to satisfy specific conditions. The fifth lens has a specific focal length to satisfy specific conditions.

Abstract: An imaging lens substantially consists of five lenses of a first lens having a meniscus shape with its convex surface facing an object side and negative refractive power, a second lens having negative refractive power, and the image-side surface of which has a convex shape facing an image side in the vicinity of an optical axis, a third lens having positive refractive power, a stop, a fourth lens having positive refractive power, and a fifth lens having negative refractive power. At least one of the surfaces of the first lens through the fifth lens is aspherical. A predetermined conditional formula about a distance on the optical axis from an object-side surface of the first lens to an image plane and a distance on the optical axis from the object-side surface of the first lens to the image-side surface of the second lens is satisfied.

Abstract: An imaging optical lens assembly includes an aperture stop and an optical assembly, the optical assembly includes, in order from the object side to the image side: a first lens element with a positive refractive power; a second lens element with a refractive power; a third lens element with a refractive power; a fourth lens element with a refractive power; a fifth lens element with a negative refractive power having an image-side surface being convex near an optical axis; wherein the image-side surface of the fifth lens element is formed with at least two inflection points, including a first inflection point and a second inflection point further away from the optical axis, a vertical distance from the first inflection point to the optical axis is Y_inf1, a vertical distance from the second inflection point to the optical axis is Y_inf2, satisfying: 1.7<Y_inf2/Y_inf1<2.1.

Abstract: An optical photographing lens assembly includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element. The first lens element has refractive power. The second lens element has positive refractive power. The third lens element with positive refractive power has an image-side surface being concave in a paraxial region thereof. The fourth lens element has refractive power. The fifth lens element with refractive power has an image-side surface being concave in a paraxial region thereof, wherein an object-side surface and the image-side surface of the fifth lens element are aspheric, and at least one of the surfaces of the fifth lens element has at least one inflection point. The optical photographing lens assembly has a total of five lens elements with refractive power.

Abstract: A photographic lens system enabling reduction in tightness of manufacturing tolerance of lenses, which has five lenses: a first lens, a second lens, a third lens, a fourth lens and a fifth lens sequentially arranged along an optical axis from an object, wherein the first lens has strong positive refractivity, the second lens is a meniscus type lens and has weak positive refractivity, the third lens has upward convex-shaped positive refractivity, the fourth lens has upward convex-shaped negative refractivity, and the fifth lens has negative refractivity, wherein the lens system satisfies a relation, f2/f1>10, wherein f1 is a focal distance of the first lens, and f2 is a focal distance of the second lens.

Abstract: Disclosed herein is an imaging lens, including: a first lens having positive (+) power and being biconvex; a second lens having negative (?) power and being concave toward an image side; a third lens having positive (+) power and being biconvex; a fourth lens having positive (+) power and being convex toward the image side; and a fifth lens having negative (?) power and being concave toward the image side, wherein the first lens, the second lens, the third lens, the fourth lens, and the fifth lens are sequentially disposed from an object side.

Abstract: An imaging lens, the imaging lens including in an ordered way from an object side, a first lens having positive (+) refractive power, a second lens having negative (?) refractive power, a third lens having negative (?) refractive power, a fourth lens having positive (+) refractive power, and a fifth lens having negative (?) refractive power, wherein meeting a conditional expression of 0.5<f1/f<1.5, where a focal length is f, and a focal length of the first lens is f1.

Abstract: There is provided a lens module including: a first lens of which both surfaces are convex; a second lens having a meniscus shape concave toward an image; a third lens having a shape convex toward the image; a fourth lens having a meniscus shape convex toward the image; a fifth lens having a meniscus shape concave toward the image; and a stop disposed in front of an object side of the first lens, wherein the lens module satisfies Conditional Expression 1: SD/f<0.45??[Conditional Expression 1] where SD is a diameter [mm] of the stop, and f is an overall focal length [mm] of the lens module.

Abstract: An optical imaging lens set includes: a first lens element with positive refractive power, a second lens element having an image-side surface with a concave portion in a vicinity of its periphery, a third lens element with positive refractive power, having a convex image-side surface, an object-side surface with a concave portion in a vicinity of its periphery, a fourth lens element having a concave object-side surface, and a plastic fifth lens element having an image-side surface with a concave portion in a vicinity of the optical axis. The total thickness Ta1 of the all lens elements along the optical axis, all four air gaps Gaa between each lens element along the optical axis, the thickness T3 of the third lens element along the optical axis and the thickness T5 of the fifth lens element along the optical axis satisfy the relation (Ta1+Gaa)/(T3+T5)?4.00.

Abstract: Present embodiments provide for a mobile device and an optical imaging lens thereof. The optical imaging lens comprises five lens elements positioned sequentially from an object side to an image side. Though controlling the convex or concave shape of the surfaces and/or the refracting power of the lens elements, the optical imaging lens shows better optical characteristics and the total length of the optical imaging lens is shortened.

Abstract: An image pickup lens includes a first lens with positive refractive power having a convex object-side surface, a second lens with negative refractive power, a third meniscus lens having a concave image-side surface, a fourth meniscus lens having a convex image-side surface, and a fifth lens with negative refractive power as a double-sided aspheric lens having a concave object-side and image-side surfaces near an optical axis; wherein following conditional expressions (9) and (12) are satisfied; 1.0<|(r3+r4)/(r3?r4)|<1.3??(9) ?1.1<f2/f<?0.7??(12) where r3 represents a curvature radius of an object-side surface of the second lens, r4 represents a curvature radius of an image-side surface of the second lens, f represents a focal length of an overall optical system of the image pickup lens, and f2 represents a focal length of the second lens.

Abstract: A lens assembly includes a first lens, a second lens, a third lens, a fourth lens and a fifth lens, all of which are arranged in sequence from an object side to an image side along an optical axis. The first lens is with positive refractive power and includes a convex surface facing the object side. The second lens is a meniscus lens with negative refractive power and includes a convex surface facing the object side. The third lens is with positive refractive power and includes a convex surface facing the image side. The fourth lens is with positive refractive power and includes a convex surface facing the image side. The fifth lens is a biconcave lens with negative refractive power.

Abstract: Present embodiments provide for a mobile device and an optical imaging lens thereof. The optical imaging lens comprises five lens elements positioned in an order from an object side to an image side. Through controlling the convex or concave shape of the surfaces of the lens elements to allow the thickness of the second lens element and the sum of all air gaps between all five lens elements along the optical axis satisfying the relation: 0.20<T2<0.50 (mm) and 0.27<(T2/Gaa)<0.40, the optical imaging lens shows better optical characteristics and the total length of the optical imaging lens is shortened.

Abstract: An imaging lens is substantially constituted by six lenses, including: a first lens having a positive refractive power and a convex surface toward the object side; a second lens, which is cemented to the first lens, having a negative refractive power and a concave surface toward the image side; a third lens; a fourth lens; a fifth lens; and a sixth lens. The imaging lens satisfies predetermined conditional formulae.

Abstract: An image capturing lens which substantially consists of five lenses, composed of a first aspherical lens having a convex surface on the object side and a positive refractive power; a second aspherical lens having a concave surface on the image side and a negative refractive power; a third aspherical lens having a positive refractive power near the optical axis; a fourth aspherical lens having a negative refractive power; and a fifth aspherical lens which is a meniscus lens having a concave surface on the image side and a negative refractive power, arranged in this order from the object side, and satisfies predetermined conditional expressions.

Abstract: An optical imaging lens set includes: a first lens element with positive refractive power having an image-side surface with a convex part in a vicinity of a circular periphery of the first lens element, a second lens element having an object-side surface with a convex part in a vicinity of a circular periphery of the second lens element, a third lens element having an object-side surface with a concave part in a vicinity of a circular periphery of the third lens element, a fourth lens element having a concave object-side surface, and a plastic fifth lens element having an image-side surface with a concave part in a vicinity of the optical axis. The air gap between the second lens element and the third lens element G23, and the air gap between the third lens element and the fourth lens element G34, satisfied the relation 1.40?G23/G34.

Abstract: Present embodiments provide for a mobile device and an optical imaging lens thereof. The optical imaging lens comprises five lens elements positioned sequentially from an object side to an image side. Through controlling the convex or concave shape of the surfaces of the lens elements and designing parameters satisfying an inequality, the optical imaging lens shows better optical characteristics and the total length of the optical imaging lens is shortened.

Abstract: An optical image capturing system includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element. The first lens element with refractive power has a convex object-side surface in a paraxial region thereof and a concave image-side surface in a paraxial region thereof. The second lens element has positive refractive power. The third lens element with negative refractive power has a concave image-side surface in a paraxial region thereof. The fourth lens element with positive refractive power has a convex image-side surface in a paraxial region thereof. The fifth lens element with negative refractive power has a concave image-side surface in a paraxial region thereof, wherein the surfaces thereof are aspheric. The optical image capturing system has a total of five lens elements with refractive power.

Abstract: This disclosure provides an optical image capturing lens system comprising: a positive first lens element having a convex object-side surface, a negative second lens element, a positive third lens element having a convex image-side surface, a fourth lens element having a concave object-side surface and a convex image-side surface; and a positive fifth lens element having a convex object-side surface at a paraxial region thereof, both of the object-side and image-side surfaces being aspheric, and at least one inflection point is positioned on at least one of the object-side and image-side surfaces thereof. When particular relations are satisfied, the angle at which light projects onto the image plane can be efficiently controlled for increasing the relative illumination and preventing the occurrence of vignetting.

Abstract: This disclosure provides an optical image capturing lens system comprising: a positive first lens element having a convex object-side surface, a negative second lens element, a positive third lens element having a convex image-side surface, a fourth lens element having a concave object-side surface and a convex image-side surface; and a positive fifth lens element having a convex object-side surface at a paraxial region thereof, both of the object-side and image-side surfaces being aspheric, and at least one inflection point is positioned on at least one of the object-side and image-side surfaces thereof. When particular relations are satisfied, the angle at which light projects onto the image plane can be efficiently controlled for increasing the relative illumination and preventing the occurrence of vignetting.

Abstract: A wide-angle image taking lens system includes an aperture stop and an optical assembly including: in order from an object side to an image side: first, second, third, fourth and fifth lens elements, the system has a total of five lens elements with refractive power, wherein Abbe numbers of the first and fifth lens element are V1, V5, a distance along an optical axis between the first and second lens element is T12, a central thickness of the first lens element is CT1, focal lengths of the system, second and third lens elements are f, f2, f3, maximum effective diameters of an object-side surface of the first lens element and an image-side surface of the fifth lens element are CA11, CA52, satisfying: 1.5<V1/V5<3; 1.1<T12/CT1<2.5; 0.2<|f/f3|+|f/f2|<1.5; 0.2<CA11/CA52<0.5.

Abstract: An imaging optical lens includes, in order from object side to image side, an aperture stop, first, second, third, fourth, and fifth lens elements, each of the five lens elements having an object side surface and an image side surface. The object side surface of the first lens element is convex along an optical axis. The image-side surface of the second lens element concave in the vicinity of an outer circumference. The object side of the fourth lens element is convex in the vicinity of the outer circumference. The image side surface of the fifth lens element is concave in the vicinity of the optical axis and convex in the vicinity of the outer circumference. The first, second, third, fourth, and fifth lens elements have a refractive power. The thicknesses of the first, second, third, fourth, and fifth lens elements and the air gaps between them satisfy specific conditions.

Abstract: The invention discloses an optical lens for capturing image and an image capture module. In order from an object side to an image side, the optical lens along the optical axis comprises a first lens element with positive refractive power having a convex object-side surface; a second lens element with positive refractive power having a convex image-side surface; a third lens element with negative refractive power having a convex image-side surface and a concave object-side surface; a fourth lens element with refractive power having a convex object-side surface, both the object-side surface and the image-side surface of the fourth lens element are aspheric; a fifth lens element with refractive power having a concave image-side surface, and at least one of the image-side surface and object-side surface has at least one inflection point. The optical lens can reduce the sensitivity for use in compact cameras with camera functionalities.

Abstract: An imaging lens forms an image on a solid-state image sensor. The constituent elements are arranged in order from an object side: an aperture stop, positive first lens having a convex object-side surface, negative second lens having a concave image-side surface, positive or negative double-sided aspheric third lens, positive fourth lens having a convex image-side surface, and negative double-sided aspheric fifth lens having a concave image-side surface, all the lenses are made of plastic, and conditional expressions (1) through (4) below are satisfied: 2.0<r7/r8<5.0??(1) ?1.35<f4/f5<?0.8??(2) TLA/2ih<0.80??(3) 1.50<Nd<1.65??(4) where r7 denotes curvature radius of the fourth lens object-side surface, r8 denotes curvature radius of the fourth lens image-side surface, f4 denotes fourth lens focal length, f5 denotes fifth lens focal length, TLA denotes total track length, ih denotes maximum image height, and Nd denotes refractive index at d-ray of the first to fifth lenses.

Abstract: An optical imaging lens assembly includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element. The first lens element has positive refractive power. The second lens element has positive refractive power. The third lens element has positive refractive power. The fourth lens element with positive refractive power has a convex image-side surface. The fifth lens element with refractive power has a concave image-side surface in a paraxial region thereof, wherein the image-side surface of the fifth lens element has at least one convex shape in an off-axis region thereof, and the surfaces thereof are aspheric. The optical imaging lens assembly has a total of five lens elements with refractive power.

Abstract: An optical image capturing system includes five lens elements with refractive power, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element. The first lens element with positive refractive power has a convex object-side surface. The second lens element with negative refractive power has a concave image-side surface. The third lens element has negative refractive power. The fourth lens element with refractive power has a concave image-side surface, and the surfaces of the fourth lens element are aspheric. The fifth lens element with refractive power has a concave image-side surface, wherein at least one inflection point formed on the image-side surface thereof, and the surfaces of the fifth lens element are aspheric.

Abstract: An imaging lens for a solid-state image sensor includes five lenses, arranged in order from an object side to an image side, a first lens with positive refractive power having a convex surface on the object side, a second lens with negative refractive power, a third lens with positive or negative refractive power having a meniscus shape with a convex surface on the object side and a concave surface on the image side near an optical axis, a fourth lens as a double-sided aspheric lens, having a concave surface on the image side near the optical axis, and a fifth lens as a double-sided aspheric lens, having a concave surface on the image side near the optical axis; wherein the first to fifth lenses are made of plastic materials.

Abstract: An imaging lens includes first to fifth lens elements arranged from an object side to an image side in the given order. Through designs of surfaces of the lens elements and relevant optical parameters, a short system length of the imaging lens may be achieved while maintaining good optical performance.

Abstract: A photographic lens system enabling reduction in tightness of manufacturing tolerance of lenses, which has five lenses: a first lens, a second lens, a third lens, a fourth lens and a fifth lens sequentially arranged along an optical axis from an object, wherein the first lens has strong positive refractivity, the second lens is a meniscus type lens and has weak positive refractivity, the third lens has upward convex-shaped positive refractivity, the fourth lens has upward convex-shaped negative refractivity, and the fifth lens has negative refractivity, wherein the lens system satisfies a relation, f2/f1>10, wherein f1 is a focal distance of the first lens, and f2 is a focal distance of the second lens.

Abstract: An imaging lens substantially consists of five lenses consisting of, in order from the object side: a first lens having a positive refractive power and having a meniscus shape with the convex surface toward the object side; a second lens having a biconcave shape; a third lens having a negative refractive power and having a meniscus shape with the convex surface toward the image side; a fourth lens having a positive refractive power; and a fifth lens having a negative refractive power, wherein an image-side surface of the fifth lens includes a concave surface and at least one inflection point, wherein a predetermined conditional expression is satisfied.

Abstract: An optical image system includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element. The first lens element with positive refractive power has a convex object-side surface. The second lens element has negative refractive power. The third lens element has refractive power, wherein two surfaces of the third lens element are aspheric. The fourth lens element with refractive power has a convex image-side surface, wherein two surfaces of the fourth lens element are aspheric. The fifth lens element with refractive power has a concave image-side surface, wherein two surfaces of the fifth lens element are aspheric, and the fifth lens element has an inflection point on the image-side surface thereof.

Abstract: Disclosed herein is an imaging lens, including: a first lens having positive (+) power and being biconvex; a second lens having negative (?) power and being concave toward an image side; a third lens having positive (+) power and being biconvex; a fourth lens having positive (+) power and being convex toward the image side; and a fifth lens having negative (?) power and being concave toward the image side, wherein the first lens, the second lens, the third lens, the fourth lens, and the fifth lens are sequentially disposed from an object side.

Abstract: An imaging lens is constituted by: a first lens having a positive refractive power and is of a meniscus shape with a convex surface toward the object side; a second lens having a negative refractive power; a third lens having a positive refractive power and a convex surface toward the object side; a fourth lens having a positive refractive power and a convex surface toward the object side; and a fifth lens having a negative refractive power, a concave surface toward the image side on the surface thereof toward the image side in the vicinity of the optical axis, and an inflection point on the surface thereof toward the image side, provided in this order from the object side.

Abstract: An imaging lens substantially consists of, in order from an object side, five lenses of a first lens that has a biconvex shape, a second lens that has a negative refractive power, a third lens, a fourth lens that has a positive refractive power, and a fifth lens that has a negative refractive power and has an object side surface and an image side surface which have aspheric shapes. Further, the imaging lens satisfies predetermined conditional expressions.

Abstract: A five-piece wide-angle lens module includes a first lens, a second lens, a third lens, a stop, a fourth lens and a fifth lens, which are sequentially arranged from an object side to an image side. The first lens has a negative refractive power, a convex surface on the object side, and a concave surface on the image side. The second lens has a negative refractive power and two concave surfaces on both sides. The third lens has a positive refractive power. The fourth lens has a positive refractive power and two convex surfaces on both sides. The fifth lens has a negative refractive power. Thereby, the five-piece wide-angle lens module can provide good image quality even in the environment with severe temperature changes.

Abstract: A five-piece wide-angle lens module includes a first lens, a second lens, a third lens, a stop, a fourth lens and a fifth lens, which are sequentially arranged from an object side to an image side. The first lens has a negative refractive power, a convex surface on the object side, and a concave surface on the image side. The second lens has a negative refractive power and two concave surfaces on both sides respectively. The third lens has a positive refractive power. The fourth lens has a positive refractive power and two convex surfaces on both sides respectively. The fifth lens has a negative refractive power. To provide good image quality, the five-piece wide-angle lens module satisfies the following relationships: ?0.6<f2/f3<?0.3, and ?0.25<f4/f5<?0.15.

Abstract: An imaging lens substantially consists of, in order from an object side, five lenses of a first lens that has a biconvex shape, a second lens that has a negative refractive power, a third lens, a fourth lens that has a positive refractive power, and a fifth lens that has a negative refractive power and has an object side surface and an image side surface which have aspheric shapes. Further, the imaging lens satisfies predetermined conditional expressions.

Abstract: An imaging lens is substantially constituted by five lenses, including: a first lens having a positive refractive power; a second lens having a negative refractive power; a third lens having a negative refractive power; a fourth lens having a negative refractive power; a fifth lens having a negative refractive power and an inflection point on the surface thereof toward the image side. All of the first lens through the fifth lens are single lenses, and the imaging lens satisfies predetermined conditional formulae.

Abstract: An imaging lens substantially includes five lenses, constituted by: a first lens having a positive refractive power; a second lens having a negative refractive power; a third lens having a positive refractive power and a convex surface that faces an object side; a fourth lens having a negative refractive power and a meniscus shape with a concave surface that faces the object side; and a fifth lens having a positive refractive power, a meniscus shape with a convex surface that faces the object side, and at least one inflection point on the surface thereof toward an image side.

Abstract: A zoom lens includes, in order from an object side to an image side along an optical axis, a first lens group having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a negative refractive power, a fourth lens group having a positive refractive power, and a fifth lens group having a positive refractive power.