Abstract: A camera module includes a first lens module including one or more lenses disposed along a first optical axis; a housing defining an internal space; at least two guide portions disposed in the internal space to guide a coupling position of the first lens module; and a reflection module disposed in the internal space to change a traveling path of light incident along the first optical axis. The at least two guide portions include a first guide portion contacting the first lens module to form a first number of contact points and a second guide portion contacting the first lens module to form a second number of contact points different from the first number of contact points.

Abstract: An imaging lens system is provided. The imaging lens system includes a first lens having refractive power; a second lens having positive refractive power and having a concave image-side surface; a third lens having refractive power; a fourth lens having positive refractive power and having a concave image-side surface; a fifth lens having a concave object-side surface; a sixth lens having a concave image-side surface; a seventh lens having a convex object-side surface; and an eighth lens having refractive power, wherein the first to eighth lenses are sequentially arranged from an object-side to an imaging side, and the imaging lens system satisfies the following conditional expression: 0.15<BFL/TTL, where BFL is a distance from an image-side surface of the eighth lens to an imaging plane, and TTL is a distance from an object-side surface of the first lens to the imaging plane.

Abstract: An imaging lens system is provided. The imaging lens system includes a first lens having refractive power; a second lens having positive refractive power and having a concave image-side surface; a third lens having refractive power; a fourth lens having positive refractive power and having a concave image-side surface; a fifth lens having a concave object-side surface; a sixth lens having a concave image-side surface; a seventh lens having a convex object-side surface; and an eighth lens having refractive power, wherein the first to eighth lenses are sequentially arranged from an object-side to an imaging side, and the imaging lens system satisfies the following conditional expression: 0.15<BFL/TTL, where BFL is a distance from an image-side surface of the eighth lens to an imaging plane, and TTL is a distance from an object-side surface of the first lens to the imaging plane.

Abstract: An optical imaging system includes a first lens, a second lens, a third lens, and a fourth lens sequentially disposed from an object side toward an image side on an optical axis, and a reflecting member disposed closer to the object side, as compared to the first lens, and having a reflecting surface configured to change a path of light to be incident to the first to fourth lenses. The first to fourth lenses are disposed to be spaced apart from each other by preset distances along the optical axis, and 1.3<TTL/BFL<3.5, where TTL is a distance from an object-side surface of the first lens to an imaging plane of an image sensor, and BFL is a distance from an image-side surface of the fourth lens to the imaging plane of the image sensor.

Abstract: An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens sequentially disposed in numerical order along an optical axis of the optical imaging system from an object side of the optical imaging system toward an imaging plane of the optical imaging system, wherein the optical imaging system satisfies 0.5<L12345TRavg/L7TR<0.9, where L12345TRavg is an average value of overall outer diameters of the first to fifth lenses, L7TR is an overall outer diameter of the seventh lens, and L12345TRavg and L7TR are expressed in a same unit of measurement.

Abstract: An image capturing lens system includes a first lens having negative refractive power, a second lens having positive refractive power while having a convex object-side surface, a third lens having positive refractive power, a fourth lens having positive refractive power, a fifth lens having negative refractive power with a concave object-side surface and a concave image-side surface, and a sixth lens having positive refractive power.

Abstract: A prism for an optical imaging includes an incident surface on which light is incident; an emission surface from which light is emitted; a reflective surface configured to reflect light incident to the incident surface to the emission surface; and a discontinuous portion disposed at one or both of a boundary portion between the incident surface and the reflective surface and a boundary portion between the emission surface and the reflective surface.

Abstract: Disclosed are lens assembly including a lens having a length in a first direction, perpendicular to an optical axis, shorter than a length in a second direction, perpendicular to both the optical axis and the first direction, on a plane perpendicular to the optical axis, and a lens barrel accommodating the lens, and having an opening in a side of the lens barrel, wherein a side of the lens in the first direction is exposed through the opening.

Abstract: An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens sequentially disposed in numerical order along an optical axis of the optical imaging system from an object side of the optical imaging system toward an imaging plane of the optical imaging system, wherein the optical imaging system satisfies 0.5<L12345TRavg/L7TR<0.9, where L12345TRavg is an average value of overall outer diameters of the first to fifth lenses, L7TR is an overall outer diameter of the seventh lens, and L12345TRavg and L7TR are expressed in a same unit of measurement.

Abstract: An image capturing lens system includes a first lens having negative refractive power, a second lens having positive refractive power while having a convex object-side surface, a third lens having positive refractive power, a fourth lens having positive refractive power, a fifth lens having negative refractive power with a concave object-side surface and a concave image-side surface, and a sixth lens having positive refractive power.

Abstract: An optical imaging system includes a first lens, a second lens, and a third lens disposed in order from an object side. The optical imaging system satisfies 1.2 mm<TTL<2.0 mm and 0<f3/f<1.0, where TTL is a distance from an object-side surface of the first lens to an imaging plane, f is a focal length of the optical imaging system, and f3 is a focal length of the third lens.

Abstract: An optical imaging system includes a first lens, a second lens, a third lens, and a fourth lens sequentially disposed from an object side toward an image side on an optical axis, and a reflecting member disposed closer to the object side, as compared to the first lens, and having a reflecting surface configured to change a path of light to be incident to the first to fourth lenses. The first to fourth lenses are disposed to be spaced apart from each other by a preset distance along the optical axis, and 1.3<TTL/BFL<3.5, where TTL is a distance from an object-side surface of the first lens to an imaging plane of an image sensor, and BFL is a distance from an image-side surface of the fourth lens to the imaging plane of the image sensor.

Abstract: An imaging lens system includes an optical path folding member including a forwardmost reflective surface disposed closest to an object side, a rearmost reflective surface disposed closest to an imaging plane, and a rear reflective surface disposed to form an acute angle with the rearmost reflective surface and configured to reflect light reflected by the rearmost reflective surface to the imaging plane, and a first lens group disposed on an object side of the forwardmost reflective surface or an image side of the forwardmost reflective surface, wherein an angle between a first virtual plane including the forwardmost reflective surface and a second virtual plane including the rearmost reflective surface is 15 to 27 degrees.

Abstract: Disclosed are lens assembly including a lens having a length in a first direction, perpendicular to an optical axis, shorter than a length in a second direction, perpendicular to both the optical axis and the first direction, on a plane perpendicular to the optical axis, and a lens barrel accommodating the lens, and having an opening in a side of the lens barrel, wherein a side of the lens in the first direction is exposed through the opening.

Abstract: An optical imaging system includes a first lens, a second lens, and a third lens disposed in order from an object side. The optical imaging system satisfies 1.2 mm<TTL<2.0 mm and 0<f3/f<1.0, where TTL is a distance from an object-side surface of the first lens to an imaging plane, f is a focal length of the optical imaging system, and f3 is a focal length of the third lens.

Abstract: A spacer includes: an opening through which light passes; an inner side surface forming the opening; and a protruding portion including a plurality of protrusions protruding from the inner side surface. Lengths of the plurality of protrusions vary in a circumferential direction of the protruding portion.

Abstract: An imaging lens system includes an optical path folding member including a forwardmost reflective surface disposed closest to an object side, a rearmost reflective surface disposed closest to an imaging plane, and a rear reflective surface disposed to form an acute angle with the rearmost reflective surface and configured to reflect light reflected by the rearmost reflective surface to the imaging plane, and a first lens group disposed on an object side of the forwardmost reflective surface or an image side of the forwardmost reflective surface, wherein an angle between a first virtual plane including the forwardmost reflective surface and a second virtual plane including the rearmost reflective surface is 15 to 27 degrees.

Abstract: A spacer includes: an opening through which light passes; an inner side surface forming the opening; and a protruding portion including a plurality of protrusions protruding from the inner side surface. Lengths of the plurality of protrusions vary in a circumferential direction of the protruding portion.

Abstract: A camera module includes a first lens module having a first lens barrel accommodating a first lens group, and a second lens module spaced apart from the first lens module in an optical axis direction, configured to be moveable in the optical axis direction, and having a second lens barrel accommodating a second lens group, the first lens barrel includes a first through-hole on one side and a first opening on the other side, the second lens barrel includes a second opening opposing the first opening on one side and a second through-hole on the other side, a diameter of the first opening is greater than a diameter of the first through-hole, and a diameter of the second opening is greater than a diameter of the second through-hole, and a light shielding member is disposed at one or more of the first opening and the second opening.

Abstract: A spacer includes an outer circumferential surface in contact with a lens barrel, and an inner circumferential surface forming a hole for controlling an amount of light, a first length of the hole in a first direction, intersecting an optical axis, and a second length of the hole in a second direction, intersecting the optical axis, are different from each other, and a first distance from the outer circumferential surface to the inner circumferential surface, extended in the first direction, is less than a second distance from the outer circumferential surface to the inner circumferential surface, extended in the second direction.