Abstract: An imaging lens system includes a lens group including a plurality of lenses, and an optical path folding member disposed on an image side of the lens group, wherein ?1.2<fR/PL<?0.40, where fR is a focal length of a rearmost lens disposed closest to an imaging plane in the lens group, and PL is a distance from an incident surface of the optical path folding member to an exit surface of the optical path folding member.

Abstract: The present disclosure relates to a method for discovering factors determining adhesion dependence of cells and a method for preventing or treating cancer, specifically metastatic cancer by regulating the expression of the factors. The present disclosure suggests a completely new inhibitory target for cancer metastasis, which allows remarkable blocking of the production of circulating tumor cells from primary cancer tissues and, ultimately, provision of an effective anticancer composition capable of significantly reducing the mortality rate of cancer.

Abstract: An optical imaging system includes an optical system including at least six lenses, sequentially disposed from an object side toward an image side, an image sensor configured to convert light incident through the optical system into an electronic signal, and a variable stop configured to change an incident hole diameter and disposed toward the object side of a lens of the optical system closest to the object side, wherein TTL is a distance to an imaging plane of the image sensor from an object-side surface of the lens closest to the object side and 4.7 mm <TTL <6.00 mm, and wherein Ri is a radius of curvature of an object-side surface of a lens of the optical system second closest to the image sensor, Rj is a radius of curvature of an image-side surface of the lens that is second closest to the image sensor, and ?0.5<(|Ri|?|Rj|)/(|Ri|?|Rj|)/(|Ri|+|Rj|)<0.5.

Abstract: An imaging lens system is provided. The imaging lens system includes a lens group including a plurality of lenses; and an optical path folding member disposed between the lens group and an imaging plane. The lens group may include three or more lenses sequentially arranged from an object side. The optical path folding member may include a first prism and a second prism. At least one of the first prism and the second prism may include a visor that prevents a flare.

Abstract: An optical imaging system includes a first lens having positive refractive power, a second lens having refractive power, a third lens having refractive power, a fourth lens having refractive power, a fifth lens having negative refractive power, wherein the first to fifth lenses are sequentially disposed from an object side, and a reflective member having a plurality of reflective surfaces to reflect the light refracted by the fifth lens multiple times, wherein 3<BFL/TL<7 is satisfied, where BFL is a distance on an optical axis from an image-side surface of the fifth lens to an imaging plane, and TL is a distance on an optical axis from an object-side surface of the first lens to the image-side surface of the fifth lens.

Abstract: An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens having a convex object-side surface, a fifth lens having a concave image-side surface, and a sixth lens, wherein the first to sixth lenses are sequentially disposed from an object side to an imaging plane. An F-number of the optical imaging system is 1.7 or less.

Abstract: An optical imaging system includes a first lens having an object-side surface that is convex; a second lens having a refractive power and a refractive index of 1.65 or more; a third lens having a refractive power; a fourth lens having a refractive power and an object-side surface that is convex; a fifth lens having a refractive power; a sixth lens having a positive refractive power; and a seventh lens having an object-side surface that is convex, wherein the first lens through the seventh lens are sequentially disposed in numerical order from an object side of the optical imaging system toward an imaging plane of the optical imaging system, and two or more of the first lens and the third lens through the seventh lens have a refractive index of 1.6 or more.

Abstract: An optical imaging system includes a first lens, a second lens, a third lens, a reflective member, and an image sensor sequentially arranged from an object side. The reflective member includes at least two reflective surfaces to change a path of light passing through the first to third lenses and incident on the reflective member at least twice.

Abstract: An optical imaging system includes a plurality of lenses disposed along an optical axis from an object side of the optical imaging system toward an imaging plane of the optical imaging system. The lenses are separated from each other by respective air gaps along the optical axis between the lenses. The lenses include a first lens closest to the object side of the optical imaging system. The conditional expressions 1.5 mm<Gmax, TL<12.0 mm, and 0.15<R1/f are satisfied, where Gmax is a maximum air gap along the optical axis among all of the air gaps, TL is a length of the optical imaging system along the optical axis from an object-side surface of the first lens to the imaging plane, R1 is a radius of curvature of the object-side surface of the first lens, and f is a focal length of the optical imaging system.

Abstract: A lens assembly includes a first D-cut lens and a lens barrel surrounding a portion of a side surface of the first D-cut lens. The side surface of the first D-cut lens includes a linear portion, and the lens barrel is configured to expose at least a portion of the linear portion of the first D-cut lens in a direction perpendicular to an optical axis.

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 ascending numerical order along an optical axis of the optical imaging system from an object side of the optical imaging system toward an imaging surface of an image sensor, wherein a conditional expression f/f2+f/f3<?0.4 is satisfied, where f is a focal length of the optical imaging system, f2 is a focal length of the second lens, and f3 is a focal length of the third lens, and a conditional expression TTL/(2*IMG HT)<0.69 is satisfied, where TTL is a distance along the optical axis from an object-side surface of the first lens to the imaging surface of the image sensor, and IMG HT is one-half of a diagonal length of the imaging surface 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 ascending numerical order along an optical axis of the optical imaging system from an object side of the optical imaging system toward an imaging surface of an image sensor, wherein a conditional expression f/f2+f/f3<?0.4 is satisfied, where f is a focal length of the optical imaging system, f2 is a focal length of the second lens, and f3 is a focal length of the third lens, and a conditional expression TTL/(2*IMG HT)<0.69 is satisfied, where TTL is a distance along the optical axis from an object-side surface of the first lens to the imaging surface of the image sensor, and IMG HT is one-half of a diagonal length of the imaging surface of the image sensor.

Abstract: An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens, sequentially arranged from an object side, wherein the first lens has a positive refractive power, wherein the second lens has a negative refractive power, wherein the third lens has a refractive power, wherein the fourth lens has a refractive power, wherein the fifth lens has a refractive power, and wherein 2.0<f/(2×IMG HT)<3.0, and 0.16<D2/|f2|<0.3, where f is an overall focal length of the first lens to the fifth lens, IMG HT is half of a diagonal length of an imaging plane, D2 is a distance along an optical axis from an image-side surface of the second lens to an object-side surface of the third lens distance, and f2 is a focal length of the second lens.

Abstract: An optical device is disclosed herein. In some embodiments, a optical device includes a liquid crystal element having a top surface, a bottom surface, and sides separating the top surface and the bottom surface, and an outer layer surrounding the sides of the liquid crystal element, wherein the liquid crystal element comprises a first base layer, a second base layer, a liquid crystal layer positioned between the first base layer and the second base layer, a pressure-sensitive adhesive layer positioned between the first base layer and the liquid crystal layer, and a spacer to maintain a gap between the first base layer and the second base layer, wherein the optical device satisfies Equation 1: ?T2×0.4?T1?T2?T2×0.4??[Equation 1] wherein, T1 is a thickness of the outer layer, and T2 is a thickness of the liquid crystal element.

Abstract: An optical imaging system includes an optical system including at least six lenses, sequentially disposed from an object side toward an image side, an image sensor configured to convert light incident through the optical system into an electronic signal, and a variable stop configured to change an incident hole diameter and disposed toward the object side of a lens of the optical system closest to the object side, wherein TTL is a distance to an imaging plane of the image sensor from an object-side surface of the lens closest to the object side and 4.7 mm<TTL<6.00 mm, and wherein Ri is a radius of curvature of an object-side surface of a lens of the optical system second closest to the image sensor, Rj is a radius of curvature of an image-side surface of the lens that is second closest to the image sensor, and ?0.5<(|Ri|?|Rj|)/(|Ri|+|Rj|)<0.5.

Abstract: An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens having a convex object-side surface, a fifth lens having a concave image-side surface, and a sixth lens, wherein the first to sixth lenses are sequentially disposed from an object side to an imaging plane. An F-number of the optical imaging system is 1.7 or less.

Abstract: An apparatus for inspecting the welding for a secondary battery includes: a measuring unit measuring a power value (P) supplied to the welding apparatus and a taken time (S) when the electrode tab and the electrode lead are welded to each other to obtain measured welding data (Data); an instrument unit obtaining a waveform representing a relationship between the power value (P) and the taken time (S) by using the measured welding data obtained by the measuring unit to display the waveform on a graph; and an inspection unit comparing the measured welding waveform displayed on the graph with a normal welding waveform to inspect whether the defective welding occur in real-time.

Abstract: An apparatus for inspecting the welding for a secondary battery includes: a measuring unit measuring a power value (P) supplied to the welding apparatus and a taken time (S) when the electrode tab and the electrode lead are welded to each other to obtain measured welding data (Data); an instrument unit obtaining a waveform representing a relationship between the power value (P) and the taken time (S) by using the measured welding data obtained by the measuring unit to display the waveform on a graph; and an inspection unit comparing the measured welding waveform displayed on the graph with a normal welding waveform to inspect whether the defective welding occur in real-time.

Abstract: A vacuum processing apparatus is provided with: a vacuum processing tank; a first gas introduction section that is constructed such that a first processing gas in a radical state is introduced into the vacuum processing tank and is guided to a semiconductor wafer; and a second gas introduction section that is constructed such that a second processing gas that reacts with the first processing gas is introduced into the vacuum processing tank and is guided to the semiconductor wafer. The second gas introduction section has two shower nozzles provided at positions on either side of an introduction pipe provided for the first gas introduction section. According to this vacuum processing apparatus, high speed processing of a number of processing objects can be achieved. Moreover, the in-plane uniformity of the processing objects after processing can be ensured.

Abstract: A plasma display apparatus and a driving method thereof are disclosed. The plasma display apparatus includes a plasma display panel comprising a first electrode and a second electrode, and a driver for applying a plurality of sustain signals to the second electrode while applying two consecutive sustain signals to the first electrode in a sustain period. A method of driving a plasma display apparatus includes applying a first sustain signal to a first electrode in a sustain period, after applying the first sustain signal to the first electrode, applying a plurality of sustain signals to a second electrode, and after applying the plurality of sustain signals to the second electrode, applying a second sustain signal consecutive to the first sustain signal to the first electrode.