Abstract: A lens includes an optical portion including a pair of straight portions facing each other in a direction perpendicular to an optical axis, and an arc portion connecting the pair of straight portions; and a flange portion extending along a portion of a perimeter of the optical portion, wherein the flange portion extends from a straight portion of the straight portions and is spaced apart from the arc portion, and the optical portion refracts light.

Abstract: A lens assembly includes a lens including an optical portion refracting light, and a flange portion extending along a periphery of the optical portion, a spacer in contact with the flange portion in an optical axis direction, and a lens barrel accommodating the lens and the spacer. A distance from an optical axis to a contact point between the flange portion and the spacer is less than a maximum radius of the optical portion. The periphery of the optical portion includes an edge portion and a connection portion. In a cross-sectional view passing through the optical axis and the connection portion, the lens is spaced apart from the spacer.

Abstract: An optical imaging system 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, arranged in order from an object side, wherein the first lens and the second lens each have positive refractive power, and 15<v7-v8<25 is satisfied, where v7 indicates an Abbe number of the seventh lens, and v8 indicates an Abbe number of the eighth lens.

Abstract: An imaging lens system is provided. The imaging lens system includes a first lens having a concave object-side surface; a second lens having positive refractive power; a third lens having refractive power; a fourth lens having refractive power; a fifth lens having refractive power; a sixth lens having an Abbe number greater than 20 and less than 40; and a seventh lens having refractive power, wherein the first to seventh lenses are sequentially arranged from an object-side to an imaging side, and the imaging lens system satisfies the following conditional expressions: TTL/(ImgHT*2)<0.8, and 100°<FOV, where TTL is a distance from the object-side surface of the first lens to an imaging plane, ImgHT is a height of the imaging plane, and FOV is an angle of view of the imaging lens system.

Abstract: An optical imaging system 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, arranged in order from an object side, wherein the first lens and the second lens each have positive refractive power, and 15<v7?v8<25 is satisfied, where v7 indicates an Abbe number of the seventh lens, and v8 indicates an Abbe number of the eighth lens.

Abstract: An imaging lens system is provided. The imaging lens system includes a first lens having a concave object-side surface; a second lens having positive refractive power; a third lens having refractive power; a fourth lens having refractive power; a fifth lens having refractive power; a sixth lens having an Abbe number greater than 20 and less than 40; and a seventh lens having refractive power, wherein the first to seventh lenses are sequentially arranged from an object-side to an imaging side, and the imaging lens system satisfies the following conditional expressions: TTL/(ImgHT*2)<0.8, and 100°<FOV, where TTL is a distance from the object-side surface of the first lens to an imaging plane, ImgHT is a height of the imaging plane, and FOV is an angle of view of the imaging lens system.

Abstract: An optical imaging system 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, arranged in order from an object side, wherein the first lens and the second lens each have positive refractive power, and 15<v7-v8<25 is satisfied, where v7 indicates an Abbe number of the seventh lens, and v8 indicates an Abbe number of the eighth lens.

Abstract: An optical imaging system 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 disposed sequentially from an object side The first lens and the second lens each have a positive refractive power, and the third lens has a negative refractive power, and D12/D_MAX<0.15 is satisfied, where D12 is a distance on an optical axis between an image-side surface of the first lens and an object-side surface of the second lens, and D_MAX is a greatest distance among distances between neighboring lenses.

Abstract: An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens having negative refractive power, a fifth lens having positive refractive power, a sixth lens having a convex image-side surface, and a seventh lens, disposed sequentially from an object side. The optical imaging system satisfies ?5.0<f2/f<?2.0, where f is a focal length of the optical imaging system and f2 is a focal length of the second lens. An F No. of the optical imaging system is less than 1.7.

Abstract: An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens having negative refractive power, a fifth lens having positive refractive power, a sixth lens having a convex image-side surface, and a seventh lens, disposed sequentially from an object side. The optical imaging system satisfies ?5.0<f2/f<?2.0, where f is a focal length of the optical imaging system and f2 is a focal length of the second lens. An F No. of the optical imaging system is less than 1.7.

Abstract: An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens having negative refractive power, a fifth lens having positive refractive power, a sixth lens having a convex image-side surface, and a seventh lens, disposed sequentially from an object side. The optical imaging system satisfies ?5.0<f2/f<?2.0, where f is a focal length of the optical imaging system and f2 is a focal length of the second lens. An F No. of the optical imaging system is less than 1.7.

Abstract: An imaging lens system is provided. The imaging lens system includes a first lens having a concave object-side surface; a second lens having positive refractive power; a third lens having refractive power; a fourth lens having refractive power; a fifth lens having refractive power; a sixth lens having an Abbe number greater than 20 and less than 40; and a seventh lens having refractive power, wherein the first to seventh lenses are sequentially arranged from an object-side to an imaging side, and the imaging lens system satisfies the following conditional expressions: TTL/(ImgHT*2)<0.8, and 100°<FOV, where TTL is a distance from the object-side surface of the first lens to an imaging plane, ImgHT is a height of the imaging plane, and FOV is an angle of view of the imaging lens system.

Abstract: An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens having negative refractive power, a fifth lens having positive refractive power, a sixth lens having a convex image-side surface, and a seventh lens, disposed sequentially from an object side. The optical imaging system satisfies ?5.0<f2/f<?2.0, where f is a focal length of the optical imaging system and f2 is a focal length of the second lens. An F No. of the optical imaging system is less than 1.7.

Abstract: An optical imaging system 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, arranged in order from an object side, wherein the first lens and the second lens each have positive refractive power, and 15<v7-v8<25 is satisfied, where v7 indicates an Abbe number of the seventh lens, and v8 indicates an Abbe number of the eighth lens.

Abstract: A mobile device and lens module including a lens barrel and a plurality of lenses sequentially stacked from an object side to an image side in the lens barrel, wherein the plurality of lenses includes one or more D-cut lenses having respective straight line rim portions, and wherein a straight line portion of a D-cut lens, of the one or more D-cut lenses, overlaps an image sensor for imaging light passing through the plurality of lenses.

Abstract: An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens having negative refractive power, a fifth lens having positive refractive power, a sixth lens having a convex image-side surface, and a seventh lens, disposed sequentially from an object side. The optical imaging system satisfies ?5.0<f2/f<?2.0, where f is a focal length of the optical imaging system and f2 is a focal length of the second lens. An F No. of the optical imaging system is less than 1.7.

Abstract: An optical imaging system 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 disposed sequentially from an object side The first lens and the second lens each have a positive refractive power, and the third lens has a negative refractive power, and D12/D_MAX<0.15 is satisfied, where D12 is a distance on an optical axis between an image-side surface of the first lens and an object-side surface of the second lens, and D_MAX is a greatest distance among distances between neighboring lenses.

Abstract: An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens having negative refractive power, a fifth lens having positive refractive power, a sixth lens having a convex image-side surface, and a seventh lens, disposed sequentially from an object side. The optical imaging system satisfies ?5.0<f2/f<?2.0, where f is a focal length of the optical imaging system and f2 is a focal length of the second lens. An F No. of the optical imaging system is less than 1.7.

Abstract: A lens assembly includes a plurality of lenses including a first lens group and a second lens group disposed on an optical axis, and a lens barrel accommodating the first and second lens groups. The first and second lens groups are fixed to the lens barrel in different manners. The first lens group includes a plurality of lenses aligned by uneven portions of ribs of the lenses in contact with each other, and a first bonding portion is disposed between the lens barrel and a lens of the first lens group disposed closest to the second lens group.

Abstract: A mobile device and lens module including a lens barrel and a plurality of lenses sequentially stacked from an object side to an image side in the lens barrel, wherein the plurality of lenses includes one or more D-cut lenses having respective straight line rim portions, and wherein a straight line portion of a D-cut lens, of the one or more D-cut lenses, overlaps an image sensor for imaging light passing through the plurality of lenses.