Abstract: An optical imaging system includes a first lens which has refractive power, a second lens which has refractive power, a third lens which has a convex object-side surface, and an inflection point is formed on an image-side surface thereof, a fourth lens which has refractive power, a fifth lens which has a convex object-side surface, and a sixth lens which has refractive power and an inflection point is formed on an image-side surface thereof, and wherein the first to sixth lens are sequentially disposed from an object side.

Abstract: A camera module includes a first lens group including a lens disposed in a direction of a first optical axis, a second lens group including a lens disposed in a direction of a second optical axis, intersecting the first optical axis, a first optical path conversion unit configured to reflect light incident through the first lens group to the second lens group, an image sensor having a third optical axis which intersects the second optical axis, a second optical path conversion unit configured to reflect the light incident through the second lens group to the image sensor, and a first driving unit configured to drive at least one of the first optical path conversion unit, the second optical path conversion unit, and the image sensor. In the camera module, the first optical axis and the third optical axis are configured to form an acute angle.

Abstract: A coil electronic component includes a first coil including at least one turn of a first conductive wire; a second coil including at least one turn of a second conductive wire and opposing the first coil; an intermediate layer disposed from a first region between a first core of the first coil and a second core of the second coil to a second region between the first coil and the second coil and including a first magnetic material; and a main body surrounding the first coil, the second coil, and the intermediate layer and including a second magnetic material, wherein cross-sections of the first conductive wire and the second conductive wire each have a rectangular shape and satisfy the following Formulas 1 and 2: 0 < w ? 1 ? t ? 1 < T ? 1 / 2 [ Formula ? 1 ] 0 < w ? 1 ? ? t ? 1 ? < T ? 1 / 2.

Abstract: A multilayer ceramic capacitor may include a ceramic body including a first surface and a second surface facing each other in a first direction, a third surface and a fourth surface facing each other in a second direction and connecting the first surface and the second surface, a fifth surface and a sixth surface facing each other in a third direction and connecting the first surface and the second surface, a plurality of first internal electrodes and a plurality of second internal electrodes disposed inside the ceramic body, and a first external electrode disposed outside the ceramic body, where the first external electrode may include a first metal layer disposed on the first surface and the sixth surface of the ceramic body and electrically connected to the plurality of first internal electrodes on the first surface, and a first plated layer disposed on the first metal layer.

Abstract: An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens sequentially disposed in ascending 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 LfS2el/L1S1el?0.65 and 0.05<T1/TTL<0.1 are satisfied, where LfS2el is a maximum effective radius of an image-side surface of the fifth lens, L1S1el is a maximum effective radius of an object-side surface of the first lens, T1 is a thickness of the first lens along the optical axis, and TTL is a distance along the optical axis from the object-side surface of the first lens to the imaging plane.

Abstract: A camera module includes a housing that accommodates a lens barrel, and a cover that covers the housing. The cover includes a connection portion connected to a first circuit board by a first solder to provide a ground to the first circuit board. The connection portion has a first concave portion having a concave shape in a first direction from the first circuit board toward the housing.

Abstract: There are provided a subminiature optical system having a miniature size and capable of obtaining a narrow view angle using only five sheets of lenses, and a portable device having the same. The subminiature optical system includes a first lens convex toward the object side and having positive refractive power, a second lens concave toward an image side and having negative refractive power, a third lens convex toward the object side and having positive refractive power, a fourth lens concave toward the image plane and having negative refractive power, and a fifth lens convex toward the image plane and having negative or positive refractive power, sequentially from an object side.

Abstract: A multilayer ceramic capacitor includes: a capacitor body including a dielectric layer and an internal electrode layer; and an external electrode disposed on the capacitor body. The capacitor body includes at least one lost portion defined as a region in which continuity of the internal electrode layer is disconnected, and the lost portion includes a Mg concentrated region including magnesium (Mg) as a main element. The dielectric layer includes an interface adjacent region defined to be a region from an interface of the dielectric layer and the internal electrode layer to a depth surface of 80 nm to 100 nm into the dielectric layer, and the interface adjacent region includes magnesium (Mg). The magnesium (Mg) included in the interface adjacent region of the dielectric layer has a lower atom % content than the magnesium (Mg) included in the Mg concentrated region of the lost portion.

Abstract: An imaging lens 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 from an object side. The fourth lens has negative refractive power and the fifth lens has negative refractive power, and a ratio (TTL/2ImgHT) between a distance (TTL) from an object-side surface of the first lens to an imaging plane and a diagonal length (2ImgHT) of the imaging plane is 0.6 or less.

Abstract: A method for manufacturing a conductive paste, includes: an operation of forming a first mixture including a metal powder, a dispersant, and a hydrophobic solvent; an operation of forming a second mixture including a hydrophilic binder and a hydrophilic solvent; and an operation of forming a third mixture by mixing the first and second mixtures.

Abstract: An optical module includes a housing; a guide member disposed in the housing and configured to be rotatable about a first rotational axis; an optical member configured to be rotatable about the first rotational axis together with the guide member; a first ball member disposed between the housing and the guide member and including a plurality of balls; and a protrusion disposed on the housing or the guide member and protruding in a direction of the first rotational axis, wherein the plurality of balls of the first ball member are configured to roll while being in contact with an outer surface of the protrusion.

Abstract: A reflective module includes a first lens module having a first optical axis; a holder on which a reflective member is disposed to reflect light passing through the first lens module; a guide member on which the holder is disposed; a housing accommodating the holder and the guide member; and a first ball member, disposed between the guide member and the housing, comprising a first ball group and a second ball group, spaced apart in a direction of a first rotation axis. The first lens module and the holder are configured to rotate together about the first rotation axis and a second rotation axis, perpendicular to each other and perpendicular to the first optical axis. The guide member is configured to rotate about the first rotation axis, together with the first lens module and the holder.

Abstract: A camera module includes a housing, a reflection module including a reflective member, and supported on the housing, a lens module including a plurality of lenses arranged in an optical axis direction, and supported on the housing in a direction different from that of the reflection module, wherein the reflection module is configured to be rotatable with respect to the housing using an optical axis and a first axis perpendicular to the optical axis, as rotation axes, and the reflection module is supported on the housing in the optical axis direction.

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; and a spacer disposed between the sixth and seventh lenses, wherein the optical imaging system satisfies 0.5<S6d/f<1.4, where S6d is an inner diameter of the spacer, f is an overall focal length of the optical imaging system, and S6d and f are expressed in a same unit of measurement.

Abstract: A camera module is provided. The camera module includes a first lens having a convex object-side surface; a second lens having a convex object-side surface; a third lens having positive refractive power; a fourth lens having a convex image-side surface; and a fifth lens having a refractive power, wherein the first to fifth lens are sequentially disposed from an object side toward an imaging plane, wherein a focal length of the second lens is within a range of ?10 mm to ?7.0 mm, and wherein 1.0<TTL/f<1.2, where TTL is a distance from the object-side surface of the first lens to the imaging plane and f is a focal length of the lens imaging system.

Abstract: A camera module is provided. The camera module includes a housing; a reflection module disposed in the housing, the reflection module including a rotation holder disposed in the housing, and provided with a reflective member; and a rotation guide disposed between the housing and the rotation holder, wherein the rotation holder includes a plurality of buffer members that protrude toward the rotation guide, and wherein the plurality of buffer members may be provided on at least a surface of the rotation holder that faces the rotation guide to protrude toward the rotation guide.

Abstract: An optical imaging system includes first through seventh lenses. The first lens includes positive refractive power, the second lens includes a positive refractive power, the third lens includes a negative refractive power, an object-side surface thereof being convex, the fourth lens includes a positive refractive power, the fifth lens includes a negative refractive power, the sixth lens includes a negative refractive power, and the seventh lens includes a negative refractive power and having an inflection point formed on an image-side surface thereof. The first to seventh lenses are sequentially disposed from an object side toward an imaging plane.

Abstract: An optical imaging system includes a first lens group having a first group of lenses. A foremost lens of the first group of lenses is a lens closest to an object side and has a positive refractive power. The optical imaging system also includes a second lens group having a second group of lenses. A rearmost lens of the second group of lenses is a lens closest to an imaging plane and has convex surfaces. The first and second lens groups are sequentially disposed from the object side to an imaging plane. An expression TL/f1<2.0 is satisfied, where TL represents a distance from an object-side surface of the foremost lens to the imaging plane and f1 represents a focal length of the foremost lens.

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, and a fifth lens. The first lens includes a convex object-side surface and a concave image-side surface. The second lens includes a concave object-side surface and a concave image-side surface. The third lens includes a concave object-side surface. The fourth lens includes a concave object-side surface. The fifth lens includes a concave object-side surface and a concave image-side surface. The first to fifth lenses are sequentially disposed from an object side toward an imaging plane.