Abstract: The present disclosure discloses an optical imaging system including, sequentially from an object side to an image side along an optical axis, a first lens, a second lens, a third lens and a fourth lens. The first lens has negative refractive power, an object-side surface thereof is a convex surface, and an image-side surface thereof is a concave surface; the second lens has refractive power; the third lens has refractive power; and the fourth lens has positive refractive power, an object-side surface thereof is a convex surface, and an image-side surface thereof is a concave surface. A wavelength ? of a chief ray of the optical imaging system and a tangent tan ? of a half field-of-view of the optical imaging system satisfy 0.5 ?m<?*tan ?<1.0 ?m.

Abstract: The present disclosure discloses an optical imaging lens assembly including, sequentially from an object side to an image side along an optical axis, 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 having refractive power. At least one of the first lens to the eighth lens has an aspheric surface. A distance TTL along the optical axis from an object-side surface of the first lens to an imaging plane of the optical imaging lens assembly, a total effective focal length f of the optical imaging lens assembly and half of a diagonal length ImgH of an effective pixel area on the imaging plane of the optical imaging lens assembly satisfy the following conditional expressions: TTL/f?1.0, ImgH?6.0 mm and 1.0<TTL/ImgH<1.5.

Abstract: A camera lens group including, a first lens having positive refractive power, a convex object-side surface and a concave image-side surface; a second lens having refractive power, a convex object-side surface and a concave image-side surface; a third lens having negative refractive power and a concave image-side surface; a fourth lens having positive refractive power, a convex object-side surface and a concave image-side surface; a fifth lens having refractive power, a convex object-side surface and a concave image-side surface; a sixth lens having positive refractive power, a concave object-side surface and a convex image-side surface; a seventh lens having refractive power; an eighth lens having refractive power and a convex image-side surface; a ninth lens having refractive power, a concave object-side surface and a convex image-side surface; and a tenth lens having negative refractive power, a concave object-side surface and a concave image-side surface.

Abstract: The present disclosure discloses an optical imaging system including, sequentially from an object side to an image side along an optical axis, a first lens having refractive power; a second lens having negative refractive power; a third lens having negative refractive power; a fourth lens having refractive power, a convex object-side surface and a concave image-side surface; and a fifth lens having refractive power. A distance TTL along the optical axis from an object-side surface of the first lens to an imaging plane of the optical imaging system and half of a diagonal length ImgH of an effective pixel area on the imaging plane of the optical imaging system satisfy: 1.0<TTL/ImgH<1.5.

Abstract: The disclosure discloses an optical imaging lens. The optical imaging lens sequentially includes from an object side to an image side along an optical axis: a first lens having a negative focal power, and provided with an object-side surface, the object-side surface is concave surface; a second lens having a focal power; a third lens having a focal power; a fourth lens having a positive focal power; a fifth lens having a negative focal power, and provided with an image-side surface, the image-side surface is concave surface; a sixth lens having a positive focal power; and a seventh lens having a focal power; at least one aspherical mirror surface is included in the object-side surface of the first lens to an image-side surface of the seventh lens; and a maximum Field of View (FOV) of the optical imaging lens meets 105°?FOV?135°.

Abstract: The present disclosure discloses an optical imaging system including, sequentially from an object side to an image side along an optical axis, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens, each of which has refractive power. Each of the first lens, the third lens and the fourth lens has positive refractive power. Half of a diagonal length ImgH on an imaging plane of the optical imaging system satisfies ImgH>5 mm. A total effective focal length f of the optical imaging system and an effective focal length f3 of the third lens satisfy 2.0<f3/f<3.0.

Abstract: An optical imaging lens assembly is provided. The optical imaging lens assembly includes, sequentially from an object side to an image side along an optical axis, a first lens having negative refractive power with a concave object-side surface and a concave image-side surface; a second lens having refractive power; a third lens having negative refractive power; a fourth lens having refractive power; a fifth lens having refractive power; a sixth lens having refractive power with a concave object-side surface and a concave image-side surface; a seventh lens having refractive power; and an eighth lens having refractive power.

Abstract: The disclosure discloses an optical imaging lens, which 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 which are provided in sequence from an object side to an imaging side along an optical axis, the first lens has a positive refractive power, and an object-side surface of the first lens is a convex surface; the second lens has a negative refractive power; the third lens has a positive refractive power; the fourth lens has a positive refractive power or a negative refractive power, an object-side surface of the fourth lens is a concave surface and an imaging-side surface is a convex surface; the fifth lens has a positive refractive power or a negative refractive power; the sixth lens has a positive refractive power or a negative refractive power, and an object-side surface of the sixth lens is a convex surface; the seventh lens has a positive refractive power or a negative refractive power; and the eighth lens has a negative ref

Abstract: The present disclosure discloses a camera lens assembly including, sequentially from an object side to an image side along an optical axis, a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens. The first lens has a positive refractive power; the second lens has a positive refractive power; the third lens has a refractive power; the fourth lens has a refractive power and an object-side surface thereof is a convex surface; the fifth lens has a positive refractive power; and the sixth lens has a negative refractive power. Half of a diagonal length ImgH of an effective pixel area on an imaging plane of the camera lens assembly and a total effective focal length f of the camera lens assembly satisfy 0.4<ImgH/f<0.6.

Abstract: The present disclosure discloses an optical imaging system including, sequentially from an object side to an image side along an optical axis, a first lens having a negative refractive power with a concave object-side surface and a concave image-side surface; a second lens having a refractive power; a third lens having a negative refractive power; a fourth lens having a refractive power with a concave object-side surface, and a convex image-side surface; and a fifth lens having a refractive power. An effective focal length f1 of the first lens and an effective focal length f2 of the second lens satisfy ?2.3?f1/f2<?1.5.

Abstract: Some embodiments of the disclosure provide an optical imaging lens assembly. From an object side to an image side along an optical axis, the optical imaging lens assembly sequentially includes: a first lens having a refractive power; a second lens having a refractive power, and an object-side surface of the second lens is a convex surface, and an image-side surface of the second lens is a concave surface; a third lens having a refractive power; a fourth lens having a refractive power; a fifth lens having a refractive power; a sixth lens having a positive refractive power, an object-side surface of the sixth lens is a convex surface, and an image-side surface of the sixth lens is a convex surface; and a seventh lens having a negative refractive power, an object-side surface of the seventh lens is a concave surface, and an image-side surface is a concave surface.

Abstract: The present disclosure discloses an optical imaging lens assembly including, sequentially from an object side to an image side along an optical axis, a first lens having positive refractive power with a convex object-side surface and a concave image-side surface; a second lens having negative refractive power with a concave image-side surface; a third lens having refractive power with a convex object-side surface and a concave image-side surface; a fourth lens having refractive power; a fifth lens having refractive power; a sixth lens having refractive power; a seventh lens having positive refractive power with a convex object-side surface; and an eighth lens having negative refractive power with a concave object-side surface and a concave image-side surface, wherein half of a diagonal length ImgH of an effective pixel area on an imaging plane of the optical imaging lens assembly satisfies: 5.80 mm<ImgH.

Abstract: The disclosure relates to an imaging system, including a first lens, a second lens, a third lens, a diaphragm, a fourth lens, a fifth lens, a sixth lens and a seventh lens arranged in sequence from an object side to an image side along an optical axis, wherein the first lens, the second lens, the third lens and the sixth lens all have refractive powers, the fourth lens has a negative refractive power, the fifth lens has a positive refractive power, and the seventh lens has a negative refractive power. The imaging system of the disclosure has excellent characteristics such as ultra-wide angle, thereby being able to satisfy more photography demands.

Abstract: The present disclosure discloses an optical imaging lens assembly including, sequentially along an optical axis from an object side to an image side: a stop; a first lens having positive refractive power; a second lens having refractive power; a third lens having negative refractive power; a fourth lens having refractive power; a fifth lens having negative refractive power; and a sixth lens having refractive power and a convex image-side surface. The first to sixth lenses include two glass aspheric lenses. A distance TTL along the optical axis from an object-side surface of the first lens to an image plane of the optical imaging lens assembly and an effective focal length f of the optical imaging lens assembly satisfy: TTL/f<1.0.

Abstract: The present disclosure discloses an optical imaging lens assembly, comprising, sequentially along an optical axis from an object side to an image side: a first lens, having a positive refractive power; a second lens, having a negative refractive power; and a third lens, having a positive refractive power. A magnification M of the optical imaging lens assembly satisfies: 0.5<M<1.5.

Abstract: The present disclosure discloses an optical imaging system. The optical imaging system comprises, sequentially along an optical axis from an object side to an image side, a stop; a first lens, having a positive refractive power; a second lens, having a refractive power; a third lens, having a refractive power; a fourth lens, having a negative refractive power, an object-side surface of the fourth lens is a convex surface; a fifth lens, having a negative refractive power; a sixth lens, having a refractive power; and a seventh lens, having a refractive power. Here, one of the first to seventh lenses is an aspheric lens made of glass, and a radius of curvature R2 of an image-side surface of the first lens and a radius of curvature R1 of an object-side surface of the first lens satisfy: 2.5?(R2+R1)/R2?R1)<3.0.

Abstract: Embodiments of the present disclosure disclose a camera lens group, comprising, sequentially along an optical axis from an object side to an image side: a stop; a first lens having a positive refractive power; a second lens having a refractive power; a third lens having a negative refractive power; a fourth lens having a positive refractive power; a fifth lens having a positive refractive power; and a sixth lens having a negative refractive power. A distance TTL on the optical axis from the object-side surface of the first lens to an image plane of the camera lens group and half of a diagonal length ImgH of an effective pixel area on the image plane of the camera lens group satisfy: TTL/ImgH?1.25. At least one of the surfaces from the object-side surface of the first lens to the image-side surface of the sixth lens is an aspheric surface.

Abstract: The present disclosure discloses an optical imaging system, comprising, sequentially along an optical axis from an object side to an image side, a prism, a diaphragm, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens, where each of the first lens to the seventh lens has a refractive powers. The prism reflects light incident to the prism along a first direction, to cause the light to emerge from the prism along a second direction. The diaphragm to the seventh lens are sequentially disposed from the prism to the image side along the second direction. The second lens has a positive refractive power, and an image-side surface of the second lens is a concave surface. The third lens has a negative refractive power. The fourth lens has a negative refractive power, and an image-side surface of the fourth lens is a concave surface. The fifth lens has a positive refractive power.

Abstract: The present disclosure discloses an optical imaging lens group, along an optical axis from an object side to an image side, sequentially includes: an autofocus assembly, a first lens, a second lens, a third lens, a fourth lens, and at least one subsequent lens, where, a radius of curvature of an image-side surface of the autofocus assembly is variable.

Abstract: An optical test system is provided, comprising, sequentially along an optical axis, a distance extension module and an optical lens assembly. The distance extension module comprises one or more lenses. The optical lens assembly comprises, sequentially along the optical axis from an object side to an image side: a diaphragm; a first lens, having a positive refractive power, an object-side surface of the first lens being a convex surface, and an image-side surface of the first lens being a convex surface; a second lens, having a negative refractive power, an object-side surface of the second lens being a concave surface, and an image-side surface of the second lens being a concave surface; a third lens, having a refractive power, an object-side surface of the third lens being a concave surface, and an image-side surface of the third lens being a convex surface; and a fourth lens, having a refractive power.