Abstract: An optical system disclosed to an embodiment includes first to sixth lenses sequentially disposed from an object side to an image side, the first lens has positive refractive power, and an object-side surface of the first lens is convex; At least one of the object-side surface and the image-side surface of the third lens includes an inflection point, and the sixth lens has negative refractive power and at least one of the object-side surface and the image-side surface includes an inflection point, the following Equation 1 may satisfy: 1<TTL/BFL<3 (Equation 1), and TTL means a distance from an apex of the object-side surface of the first lens to an upper surface of the image sensor in a direction of the optical axis, and BFL means a distance from an apex of the image-side surface of the sixth lens to the upper surface of the image sensor in the direction of the optical axis.

Abstract: The camera device disclosed to an embodiment includes a plurality of lenses which are arranged sequentially along an optical axis from an object side to an image side, and a lens barrel in which the plurality of lenses is received and which has an incident hole formed on an image surface thereof, wherein the lens barrel includes the plurality of lenses. A head part disposed in a region corresponding to a lens closest to an object side of the lens, and an upper portion of the head part may have a smaller length than that of a lower portion of the head part in a vertical direction of the optical axis.

Abstract: An optical system disclosed to an embodiment of the invention includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, and an eighth lens sequentially arranged along an optical axis from an object side to an image side, wherein the first lens has a positive refractive power and has a convex object-side surface, the second lens has a negative refractive power and has a concave image-side surface, and at least one of an object-side surface and an image-side surface of the sixth lens has an inflection point, the seventh lens has a positive refractive power and has a convex image-side surface, the eighth lens has a negative refractive power and has an object-side surface and an image-side surface which have at least one inflection point, a center thickness of the seventh lens may be the thickest among thicknesses of centers of the first to eighth lenses.

Abstract: An optical system disclosed in the embodiment of the invention includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens and a ninth lens, which are sequentially arranged along an optical axis in a direction from an object side to a sensor side, wherein the first lens has a convex object-side surface convex, the second lens has positive refractive power and has a convex object-side surface, and the third lens has negative refractive power and has a concave sensor-side surface, the eighth lens has positive refractive power, at least one of the object-side surface and the sensor-side surface of the eighth lens has at least one inflection point, and the ninth lens has negative refractive power and has an object-side surface and a sensor-side surface having at least one inflection point.

Abstract: The optical system disclosed in the embodiment of the invention includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, and a eighth lens sequentially disposed along an optical axis from an object side to an image side, wherein the second lens has positive refractive power, the third lens has negative refractive power, the seventh lens has positive refractive power, and the eighth lens has negative refractive power, wherein refractive indices of the first, third, and fifth lenses are greater than those of the second, fourth, sixth, and eighth lenses, and have a relationship of 1.2 < F / D 1 < 2.4, where F is a total effective focal length of the optical system, and D1 may be an effective diameter of the first lens.

Abstract: The present embodiment relates to an imaging lens including: a first lens having a positive refractive power, a second lens having a negative refractive power; a third lens; a fourth lens; a fifth lens having a positive refractive power; and a sixth lens having a negative refractive power, wherein the first to sixth lenses are sequentially arranged from an object side to an image side, the first to third, the fifth, and the sixth lenses are solid lenses, the fourth lens includes a variable focus lens, and the Conditional Expression 0.7<TTL/imgH<1 is satisfied.

Abstract: An embodiment of the present invention relates to an imaging lens comprising: a first lens having positive (+) refractive power; a second lens having negative (?) refractive power; a third lens having negative (?) refractive power; a fourth lens; a fifth lens having negative (?) refractive power; and a sixth lens, wherein the first to sixth lenses are successively arranged from an object side to an image side, the first to third, fifth, and sixth lenses are solid lenses, and the fourth lens comprises a focus-tunable lens.

Abstract: An imaging lens is provided. An imaging lens according to an aspect of the present invention comprises a first lens having negative (?) refractive power, a second lens having positive (+) refractive power, a third lens having positive (+) refractive power, a fourth lens having negative (?) refractive power, a fifth lens having positive (+) refractive power, and a sixth lens having negative (?) refractive power, which are arranged in the order from an object side to an image side, wherein each of the lenses satisfies the equation tan ?d×D>?0.2 (where ?d is the maximum half-angle of field of view of an optical system, and D is the degree of distortion at the maximum image height).

Abstract: The present exemplary embodiment relates to an imaging lens system according to the present exemplary embodiment comprises: a first lens group comprising at least one solid lens; a second lens group spaced apart from the first lens group and comprising at least one solid lens; and a variable focal lens disposed between the first lens group and the second lens group, wherein the following Conditional Expression is satisfied: 1<THlg1/THlg2<2??[Conditional Expression]

Abstract: Embodiments relate to an image pickup lens including a first lens having both convex surfaces, a second lens in the form of a positive meniscus lens and a third lens in the form of a negative meniscus lens, the first lens to the third lens being arranged in sequence from an object side to an image side. The first lens to the third lens are formed of the same material.

Abstract: 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 and convexly formed at an object side surface; a second lens having positive (+) refractive power and concavely formed at an object side surface; and a third lens having negative (?) refractive power, wherein the imaging lens meets a conditional expression of 1.6<ND3<1.7, where ND3 is a refractive index of the third lens.

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: Embodiments relate to an image pickup lens including a first lens having both convex surfaces, a second lens in the form of a positive meniscus lens and a third lens in the form of a negative meniscus lens, the first lens to the third lens being arranged in sequence from an object side to an image side. The first lens to the third lens are formed of the same material.

Abstract: Embodiments relate to an image pickup lens including a first lens having both convex surfaces, a second lens in the form of a positive meniscus lens and a third lens in the form of a negative meniscus lens, the first lens to the third lens being arranged in sequence from an object side to an image side. The first lens to the third lens are formed of the same material.

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: 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 negative (?) refractive power, a fourth lens having positive (+) refractive power, and a fifth lens having negative (?) refractive power, wherein the imaging lens meets a conditional expression of 0.8<?T/((FLD)X2)<1.2, where ?T is a distance from an object side surface of the first lens to an image-forming surface, and FLD is a distance from an optical axis to a maximum image height.

Abstract: Embodiments relate to an image pickup lens including a first lens having both convex surfaces, a second lens in the form of a positive meniscus lens and a third lens in the form of a negative meniscus lens, the first lens to the third lens being arranged in sequence from an object side to an image side. The first lens to the third lens are formed of the same material.

Abstract: 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 and convexly formed at an object side surface; a second lens having positive (+) refractive power and concavely formed at an object side surface; and a third lens having negative (?) refractive power, wherein the imaging lens meets a conditional expression of 1.6<ND3<1.7, where ND3 is a refractive index of the third lens.

Abstract: Disclosed is an imaging lens. The imaging lens includes a first lens having positive (+) power, a second lens having negative (?) power, and a third lens having positive (+) power and an inflection point on an imaging surface thereof facing an image side, wherein the first to third lenses are sequentially arranged from an object, and the second lens has power stronger than power of the first and third lenses.

Abstract: Disclosed is an imaging lens. The imaging lens includes a first lens having positive (+) power, a second lens having negative (?) power, and a third lens having positive (+) power and an inflection point on an imaging surface thereof facing an image side, wherein the first to third lenses are sequentially arranged from an object, and the second lens has power stronger than power of the first and third lenses.