Abstract: The present disclosure proposes a detachable second apparatus coupled to a first apparatus that determines a first three-dimensional shape of an object and configured to determine an angle of an upper surface of the object. The second apparatus includes a first light source configured to sequentially irradiate first pattern lights having one phase range, a beam splitter and lenses configured to change optical paths of the first pattern lights so that a beam of light corresponding to a respective phase of the phase range spreads, and arrives at each point of a partial region of the upper surface of the object, a communication interface, and a first processor configured to obtain first information on first reflected lights generated by reflecting the first pattern lights from the partial region and determine the angle of the upper surface with respect to the reference plane based on the first information.

Abstract: A printed circuit board and a method of manufacturing the same are provided. The printed circuit board includes a first insulating layer, a first metal layer disposed on an upper side of the first insulating layer, a second metal layer disposed on a lower side of the first insulating layer, and a first via layer penetrating through at least a portion of the first insulating layer to connect the first metal layer to the second metal layer. The first via layer has a tapered shape becoming narrower toward a top of the first insulating layer, and an upper surface of the first metal layer is substantially flat, and a side surface of the first metal layer has a curved surface.

Abstract: The present invention relates to a method for attaching micro LEDs at preset mounting positions on a target substrate, comprising the steps of: (a1) disposing, at the bottom of a filled fluid, a target substrate assembly to which micro LEDs are to be attached, and preparing a water tank in which the plurality of micro LEDs float in the fluid or on the surface of the fluid on the target substrate assembly, (b1) lowering the level of the fluid in the water tank so as to lower the floating position of the plurality of micro LEDs, thereby guiding some of the plurality of micro LEDs into the plurality of apertures of the mask; and (c1) attaching, to the target substrate, some of the micro LEDs guided into the apertures.

Abstract: An optical imaging system includes a first lens group including a first lens and a second lens, a second lens group including a third lens, a fourth lens, and a fifth lens, and a third lens group including a sixth lens and a seventh lens. The first to seventh lenses are arranged in order from an object side, at least one of the first lens group to the third lens group is moved on an optical axis to change a distance between the first lens group to the third lens group, and the following conditional expression is satisfied: 0.2<BFL/(2*IMG HT)<2.0 where BFL is a distance on the optical axis from an image-side surface of the seventh lens to an imaging surface of an image sensor, and IMG HT is half a diagonal length of the imaging surface of the image sensor.

Abstract: A lamp for a vehicle that includes a light source part that generates and irradiates light, and a lens array provided on a front side of the light source part, the lens array includes a first lens part including a plurality of first micro lenses, to which the light is input from the light source part, and a second lens part including a plurality of second micro lenses that outputs the light input from the first lens part, and upward/downward sizes of at least some of the plurality of first micro lenses are smaller than upward/downward sizes of the second micro lenses provided at corresponding locations.

Abstract: A display device includes: a plurality of light emitting elements on a first substrate; a second substrate facing the first substrate; a partition wall on one surface of the second substrate facing the first substrate, and including a plurality of openings; a plurality of color filters in the plurality of openings; wavelength conversion layers on the plurality of color filters, respectively, and to convert wavelengths of light emitted from the plurality of light emitting elements; and an adhesive layer adhering the first substrate and the second substrate to each other. The partition wall includes a silicon single crystal.

Abstract: An annular contactor comprising polycrystalline diamond, having a rotation axis extending through the center thereof, and comprising a first portion having an inn end portion and a constant thickness in the radial direction, and a second portion having an out end portion and a decreasing thickness in the radial direction, wherein: the second portion has a first surface and a second surface continuous with the first portion, and a connection surface connecting the first surface and the second surface; the angle ? between the first surface and the second surface is 100-150°; the length between a first boundary portion between the first surface and the connection surface, and a second boundary portion between the second surface and the connection surface, is 1-10 ?m; the length from the rotation axis to the out end portion is 0.5-5 mm; and the average particle diameter of the diamond particles is 10-300 nm.

Abstract: An apparatus and method for detecting smoke using multi-angle light scattering. The apparatus includes a light source array in which a plurality of light sources outputting optical signals of a same wavelength are arranged at a regular interval and configured to output the optical signals at different irradiation angles to smoke particles, a lens configured to divert optical paths of the optical signals output from each of the plurality of light sources included in the light source array, an optical detector configured to measure the optical signals that pass through the lens and are scattered and absorbed by the smoke particles, and a computing device configured to classify types of the smoke particles using a scattering coefficient and an absorption coefficient of the smoke particles determined through the measured optical signals.

Abstract: In an embodiment, a cathode active material can include a lithium oxide having a disordered rocksalt (DRX) structure, and the lithium oxide is configured to phase-transform from the DRX structure into a spinel-like structure during charging so as to alleviate and/or prevent rate capability decrease and irreversible voltage drop caused by lithium and manganese existing in excess in the lithium oxide, and a lithium secondary battery embodiment including the same.

Abstract: Proposed is a method of recovering acids and alkalis from raffinate generated from a metal extraction process. The method includes pretreating raffinate generated from a metal extraction process and performing electrodialysis of the pretreated raffinate. The method recovers some components present in raffinate generated from a battery manufacturing process and a battery treatment process to reuse the recovered components. Therefore, the method provides economic and environmental benefits.

Abstract: An apparatus for cooling a steel sheet includes: an apparatus body provided spaced apart from a steel sheet in the conveying path of the steel sheet; and a cooling unit provided in the apparatus body to supply a cooling fluid. The apparatus body includes: a first edge body that faces a first edge portion extending a certain distance from one side end of the steel sheet toward the center of the steel sheet; and a second edge body that faces a second edge portion extending a certain distance from the other side end of the steel sheet toward the center of the steel sheet. The first and second edge bodies may have stepped cross-sections in a direction perpendicular to the conveying direction of the steel sheet.

Abstract: An exemplary embodiment of the present invention provides an apparatus for producing fermented soybean meal, which produces fermented soybean meal for monogastric animals and ruminant selectively or together.

Abstract: An inspection apparatus may include: a structured-light source configured to sequentially radiate a plurality of structured lights having one phase range; a lens configured to adjust, for each of the plurality of structured lights, optical paths of light beams corresponding to phases of the phase range such that a light beam corresponding to one phase of the phase range arrives at each point of a partial region on an object; an image sensor configured to capture a plurality of reflected lights generated by the structured lights being reflected from the partial region; and a processor configured to acquire a light quantity value of the reflected lights; and derive an angle of the surface by deriving phase values of the reflected lights based on the light quantity value for the reflected lights.

Abstract: A printed circuit board includes a first insulating layer; a first wiring layer disposed on an upper surface of the first insulating layer; a second insulating layer disposed on the upper surface of the first insulating layer and having a cavity; and a first barrier layer having at least a portion disposed between the first and second insulating layers and in contact with a side surface of at least a portion of the first wiring layer.

Abstract: Embodiments of the present disclosure provide a method for producing synthetic fuel from water and carbon dioxide. The method includes the operations of (a) preparing water-derived hydrogen, (b) preparing carbon dioxide, (c) introducing the hydrogen and carbon dioxide into a first reaction to produce a first product comprising synthesis gas, (d) introducing the synthesis gas into a second reaction to produce a second product comprising syncrude, (e) dividing the syncrude oil into a plurality of fractions comprising a first fraction, (f) introducing at least one fraction of the plurality of fractions into a hydrogenation reaction to produce a third product, and (g) recovering a fraction corresponding to a boiling point range of the first fraction from the third product. The present disclosure also provides an aviation fuel produced by the method.

Abstract: A method of preparing a conductive composite includes immersing a porous base material in a conductive coating solution, and drying the conductive coating solution on the porous base material to form a conductive coating layer on the porous base material. The conductive coating solution includes conductive particles and a solvent, and the surface tension of the solvent is lower than the surface tension of the porous base material by 8 mN/m or more, and a conductive composite is prepared therefrom.

Abstract: A refrigerator includes: a door including a door body and a door panel coupled to the door body, and a buffer member disposed at a rear surface of the door panel and provided between the door body and the door panel. The door body defines a first part at a front surface, an adhesive portion is provided at the first part between the door body and the door panel to thereby couple a rear surface of the door panel to the front surface of the door body, and the buffer member contacts a first portion of the adhesive portion and the rear surface of the door panel contacts a second portion of the adhesive portion.

Abstract: An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens sequentially disposed from the first lens to the fifth lens from an object-side of the imaging system to an image-side of the imaging system and each having refractive power. The fourth lens has a convex object-side surface and an expression 0.7<TL/f<1.0 is satisfied, where TL is a distance from an object-side surface of the first lens to an imaging plane, and f is an overall focal length of the optical imaging system.

Abstract: An optical imaging system includes a plurality of lenses disposed along an optical axis, and a reflection member disposed to be closer to an object than all of the plurality of lenses and having a reflection surface configured to change a path of light. The plurality of lenses are spaced apart from each other by preset distances along the optical axis, and the condition 0.8<TTL/ft<1.1 is satisfied, where TTL is a distance from an object-side surface of a lens closest to the object among the plurality of lenses to an imaging plane of an image sensor, and ft is an overall focal length of an optical system including the plurality of lenses.

Abstract: A battery pack includes a lower case; an upper case coupled to the lower case; venting holes provided in at least one of a side wall of the lower case and the upper case; a sealing member on at least one of the side wall of the lower case and the upper case to cover the venting holes, and deformed under predetermined pressure and/or at a predetermined temperature to open the venting holes; and a flame control block mounted on at least one of an inner surface of the side wall of the lower case and an inner surface of the upper case to cover the venting holes and the sealing member, and including a flame blocking surface with a plurality of flame discharge holes and an inner space that communicates with the flame discharge holes and that is open toward the venting hole and the sealing member.