91 results about "Minor axis" patented technology

The invention provides a polarization selectivity all-dielectric high-saturation structural color metasurface with a maintainable color center. The metasurface sequentially comprises a SiO2 semi-ellipsoid layer, a GaN elliptic cylinder array and a PDMS flexible substrate from top to bottom, wherein the SiO2 semi-ellipsoid layer and the GaN elliptic cylinder array form a periodically arranged double-layer all-dielectric nanostructure unit. Under the condition of x polarization incidence, the structure generates a narrow-band high-reflection structural color in a visible light wave band, the full width at half maximum of a main reflection peak is about 9 nm, the peak reflectivity can reach 99.8% or above, and the reflectivity of a secondary reflection peak on the short wave side is lower than 0.01; and under the y polarization incidence condition orthogonal to the light source, the reflectivity near the corresponding wavelength is lower than 2%, and the light source shows remarkable polarization selectivity. The inventor further finds that when the equivalent radius change of the nano unit causes the reduction of the reflection efficiency, the reflectivity of the main peak can be recovered by adjusting the long-short axis ratio of the GaN elliptic cylinder and the SiO2 semi-ellipsoid, and the central wavelength of the main formant is basically kept unchanged, so that the brightness adjustment is realized on the premise that the color center is basically constant. The structure is suitable for flexible or wearable optical devices, polarization-related structural color display and other applications.

A connector (10) for coupling a tube (12) to a receptacle comprises an end piece (14) formed at the end of the tube (12), which is arranged such that it can be inserted into the receptacle in an assembly position and slid into a latched position. A retaining element surrounds the receptacle and has first and second legs (62) that extend into the receptacle. The legs (62) each have a cross-section with a first minor axis that is smaller than a second major axis. The end piece (14) engages the minor axis of the legs (62) and presses the legs (62) into a spread state, while the end piece (14) slides from the assembly position into the latched position. In the latched position, the legs (62) retract into a relaxed state and are engaged in a groove (13, 50) in the end piece.

A phase difference sheet including a substrate and a phase difference film as a tilt film, wherein, in a biaxial refractive index ellipsoid exhibiting a refractive index anisotropy, of three principal refractive indexes nx, ny, nz, the principal refractive index in the length direction of a columnar structure, i.e., the X-axis direction, is nx, the principal refractive index in the major axis direction of an ellipse perpendicular to the X-axis, i.e., the Y-axis direction, is ny, and the principal refractive index in the minor axis direction, i.e., the Z-axis direction, is nz, the following conditional expression (1) is satisfied, and, in a case where the incident angle of a direction tilted to the X-axis side with the normal as a reference is positive, the phase difference of incident light at an incident angle of +30° is Re(+30), the phase difference of incident light at an incident angle of -30° is Re(-30), and the ratio of Re(+30) to Re(-30), i.e., the phase difference ratio, is Re(30) ratio, the following conditional expression (2) is satisfied, ny > nx > nz (1), Re(30) ratio = Re(30) / Re(-30) = 1.1 to 4.0 (2).

A drill string comprising: an elongate hollow main length section (101); a male casing portion (108) provided at a second end (106), the male casing portion having an externally threaded section (107) and a non-threaded shank (109) axially positioned intermediate the main length section (101) and the threaded section (107); the shank (109) having a transition section (206) positioned adjacent a radially protruding shoulder (110) at the second end (106) or the main length section (101), the transition section (206); wherein a cross-sectional shape profile of an outer surface of the transition section (206) in a plane of a longitudinal axis (204) comprises a segment of an ellipse having a semi-major axis (a), a semi-minor axis (b); wherein a ratio of the semi-major axis to the semi-minor axis (a:b) is within a range 2b

This invention provides a calcium carbonate compound and an inorganic molded body with shape controlled by having a high aspect ratio. The invention relates to a calcium carbonate compound having a phosphorus content of 1000 ppm or more and 15000 ppm or less, a sulfur content of 2000 ppm or less, and an aspect ratio (mean major axis to mean minor axis) of 6 or more and 19 or less.

An apparatus for generating a defined laser illumination (12) on a work plane (14) has a laser light source (20) that generates a raw laser beam (22). An optical assembly (24) receives the raw laser beam (22) and shapes it into an illumination beam (26) along an optical axis (40). The illumination beam (26) defines a beam direction (28) that intersects the work plane (14). The illumination beam (26) has a beam profile (42; 42') in a region of the work plane (14) that has a major axis (44) perpendicular to the beam direction (28) with a major axis beam width and a minor axis (46) with a minor axis beam width. The optical assembly (24) includes a beam transformer (30) with an exit aperture, a first set of optical elements (56, 60, 62, 64) for beam shaping on the major axis, and a second set of optical elements (34, 36, 38) for beam shaping on the minor axis. The beam transformer (30) widens the raw laser beam (22) on the major axis to generate a widened raw laser beam. The first set of optical elements (56, 60, 62, 64) includes a homogenizer (56) that homogenizes the widened raw laser beam on the major axis. The second set of optical elements (34, 36, 38) includes at least one lens (38) that images the exit aperture of the beam transformer (30) into the work plane. The first set of optical elements (56, 60, 62, 64) generates an intermediate image (66) behind the homogenizer (56) and further implements an imaging optical unit that images the intermediate image (66) into the work plane (14).

An X-ray source is provided comprising a target generator configured to generate a liquid jet having an elongated cross with a major axis and a minor axis; an electron source configured to generate an electron beam arranged to interact with the liquid jet in an interaction region to generate X-ray radiation; and an X-ray transparent window arranged to transmit X-ray radiation generated in the interaction region, wherein the X-ray transparent window is located for extraction of X-ray radiation at an angle α relative to the major axis; wherein the target generator is configured to generate the liquid jet such that said jet has a thickness at the interaction region, along a propagation direction of the electron beam, that is less than an electron penetration depth of the electron beam in the liquid jet. A corresponding method for generating X-ray radiation is also provided.

To address the issues of insufficient performance and high cost associated with integral casting and additive manufacturing methods for parts with small-entry elliptical gradient deep cavities, and the difficulties, low efficiency, and high cost of metal removal methods, this invention proposes a machining method for elliptical gradient deep cavities with small entry points. The method involves first rough drilling and rough turning to obtain a deep hole. Then, a step-by-step machining approach is adopted, dividing the part into regions and machining them axially and radially. First, the part is tilted to machine the regions on both sides of the major axis of the ellipse. Then, the part is turned upright to machine the regions on both sides of the minor axis of the ellipse. During the upright machining, a radial layering and thin-cutting fast-running method is used. Several layers are machined using the first toolpath until the machining residue in the undercut and triangular regions is removed. Then, a second toolpath is used for contour machining to obtain a gradient deep cavity with an elliptical cross-section. Finally, the gradient deep cavity is precision milled until its internal dimensions and surface roughness meet the design requirements.

A steel sheet according to the present disclosure which has the chemical composition described in the description, wherein: the bainite area ratio is 70% or more, the aspect ratio As of crystal grains HAGB is 4.00 or more, and the maximum value HVmax of the Vickers hardness is 240HV or less in a surface layer region extending from the surface of the steel sheet to a depth of 0.5mm; the bainite area ratio is 50% or more and the minor axis of bainite crystal grains HAGB is 30.0μm or less in a t / 4 region; and the aspect ratio As of the crystal grains HAGB in the surface layer region and the aspect ratio At / 4 of the crystal grains HAGB in the t / 4 region satisfy formula (1).　(1): 1.00≤As / At / 4≤5.00

This invention relates to the field of shipbuilding technology and discloses a method for lofting and unfolding a sloping cylindrical structure, comprising the following steps: S1, creating a side view and a normal section view; S2, obtaining the minor axis projection line HV in the side view; S3, obtaining the minor axis section projection line H1V1 and the major axis section projection line P1W1 in the normal section view; S4, obtaining the major axis projection line PW in the side view; S5, drawing perpendicular lines from points P and W to the center line of the cylinder to obtain line segment QT; S6, dividing the normal section view into equal parts, projecting each division point onto line segment QT to obtain equal division projection points, and unfolding the sloping contour to obtain unfolding points; S8, repeating S7, smoothly connecting each unfolding point; S9, obtaining the generatrix unfolding points, connecting two generatrix unfolding points to complete the lofting and unfolding diagram of the sloping cylindrical structure. Using the minor axis projection line and the major axis projection line as a reference, the lofting and unfolding of the cylinder is achieved, realizing accurate lofting and unfolding of any sloping cylindrical structure, facilitating cylinder installation.

The present invention relates to a metal powder containing a metal of Au, Ag, Cu, or an alloy thereof, having an average particle size of 0.1 μm or more and 0.4 μm or less, and purity of 99.9% by mass or more. In this metal powder, a presence ratio, in terms of the number of particles, of non-spherical particles in the metal powder having a ratio (b / a) of a minor axis “a” and a major axis “b” of 3 or more is 1% or less. As a method for producing such a metal powder, in a wet reduction method including a metal colloid synthesis step and a metal powder granulation step of granulating metal colloidal particles into a metal powder, surfactants having alkyl groups having carbon numbers falling within specified ranges are preferably used as first and second dispersants in the metal colloid synthesis step and the metal powder granulation step.

This rotor comprises: a rotor core that has an outer circumference extending in a circumferential direction centered on a central axis, and magnet insertion holes along the outer circumference; and permanent magnets that are disposed in the magnet insertion holes and constitute magnetic poles. When a straight line passing through the central axis and the center of a magnet insertion hole in the circumferential direction is defined as a d-axis, and a straight line passing through the central axis and an inter-pole section spaced apart from the magnet insertion hole in the circumferential direction is defined as a q-axis, at least one portion of the section from the d-axis to the q-axis in the outer circumference of the rotor core is formed as an elliptical arc section centered on the d-axis, and the elliptical arc portion has line symmetry with the d-axis. When the distance on the d-axis from the central axis to the outer circumference is defined as r, the elliptical arc section is tangent to a circle having the radius r centered on the central axis at one point on the d-axis. The elliptical arc section has a first axis in a direction orthogonal to the d-axis, and has a second axis on the d-axis. The first axis is one among a major axis and a minor axis, and the second axis is the other among the major axis and the minor axis. When the length of the second axis is defined as 2b and the distance from the central axis to the center of the elliptical arc section is defined as k, the expression k = r-b is established.

Flake-like copper particles according to the present invention have an average number of crystal grains of 150 to 2,000 inclusive as measured by observing cross-sectional surfaces of the flake-like copper particles by an electron backscattered diffraction method. When viewed in plan, if the longest line segment crossing a particle is defined as the major axis and the perpendicular bisector of the major axis is defined as the minor axis, the number of crystal grains in the plan view is 4.5 per µm2 to 40.0 per µm2 inclusive with respect to the value (µm2) of the product of the major axis length and the minor axis length. It is preferable that the crystal grain size is 0.2 µm to 1.3 µm inclusive. In a plan view, it is preferable that the average size of the crystal grains that are positioned in the peripheral region of a particle is smaller than the average size of the crystal grains that are positioned in the central region of the particle.

Member (20) for taking up and dispensing a fluid product (P), notably a cosmetic product, contained in a container (10), the member (20) comprising: - an uptake and dispensing tube (21), and - an uptake and dispensing bulb (40) secured indirectly to the tube (21) and comprising a neck (41) and a hollow body (42) that is elastically compressible and extends axially from the neck (41) towards the outside, said hollow body (42) being bounded radially by two lateral pressing walls (43a, 43b) facing one another and two junctions (44a, 44b), the lateral pressing walls (43a, 43b) having a width greater than the width of the junctions (44a, 44b), the neck (41) having a thickness greater than the thickness of the lateral pressing walls (43a, 43b), said hollow body (42) having a cross section in the radial direction the shape of which is non-circular, preferably elliptical, defining a major axis (A) and a minor axis (a), the ratio (a / A) between the major axis and the minor axis being strictly less than 0.8.

Provided is a method for producing a granulated substance (100) including a plurality of flat-shaped magnetic nanoparticles (30) in which, as a single body, a major axis and a minor axis shorter than the major axis intersect with each other and a flat surface along the major axis is wider than a side surface along the minor axis. The plurality of magnetic nanoparticles are mixed with a solvent (111) to generate a liquid first intermediate product (110). The plurality of magnetic nanoparticles contained in the liquid first intermediate product are dispersed. An external magnetic field having a gradient is applied to the dispersed first intermediate product to generate a second intermediate product (120) in which the plurality of magnetic nanoparticles are magnetically oriented. The liquid second intermediate product is solidified. The second intermediate product in a solidified state is granulated to generate a granulated substance including a plurality of the magnetically oriented magnetic nanoparticles.

An upper for an article of footwear includes a mesh textile portion including pillars including one or more first yarns aligned in a first direction and defining a major axis of the mesh textile portion and links including one or more second yarns and aligned in a second direction defining a minor axis of the mesh textile portion. The minor axis is transverse the major axis, the pillars have a greater thickness and / or greater denier than the links, and the major axis is offset from a lengthwise dimension of the upper by a bias angle ranging from about 30° to about 60°.

This invention relates to the field of optical manipulation technology, and more specifically, to a method for optical manipulation based on a dimer. The purpose of this invention is to solve the problem of insufficient lateral optical force control. The dimer is constructed by assembling two isotropic particles, and is placed on a sample stage and completely immersed in a homogeneous medium. The optical manipulation method is as follows: a circularly polarized Gaussian beam is shaped into an incident light with an elliptical cross-section. The incident light is guided to obliquely illuminate the dimer and project an elliptical spot with a major axis and a minor axis onto the substrate of the sample stage. The angle of inclination formed by the incident light and the normal to the substrate of the sample stage is ∈ (0°, 90°), with the major axis perpendicular to the propagation direction of the incident light and the axis of the dimer parallel to the minor axis, so that the incident light induces a lateral optical force on the dimer, the direction of which is parallel to the major axis. By adjusting the rotation direction of the circularly polarized Gaussian beam and the angle of inclination, optical manipulation of the dimer's motion direction and velocity can be achieved.

A non-slip tread surface 1 for a stairway, walkway or rampway. The surface has an extruded resilient material having a major axis 7 aligned with the extrusion direction, and a minor axis 8 substantially lateral to the major axis, the cross section having a plurality of parallel ridges 6, the ridges of regular cross section with varying height wherein at least some of the ridges have differing heights compared to at least some of the adjacent ridges, the ridges presenting longitudinal edges 9 to increase friction laterally. A plurality of height reductions 11 in the ridges form a reduced region 12 running across the ridges 6 parallel to the minor axis, with lateral edges 13 to increase friction longitudinally. The height reductions 12 are formed after the resilient material is extruded. The longitudinal edges and lateral edges forming an enhanced grip surface both laterally and longitudinally of the ridges.

A lens including a light entering part having a concave shape in a lower region of the lens, and on which light emitted from a light emitting device is to be incident, and a light exiting part through which the incident light is emitted to an outside of the lens, in which each of the light entering part and the light exiting part has a major axis and a minor axis in plan view, and the major axis of the light entering part is orthogonal to the major axis of the light exiting part, the light entering part includes a light incident vertical surface extending from a lower surface of the lens, and a light incident inclined surface extending upward from the light incident vertical surface, and the light incident vertical surface surrounds the light emitting device.

The present invention provides a semiconductor device capable of suitably dividing a laminated film into multiple plate-like portions. [Solution] According to one embodiment, the semiconductor device comprises a laminated film that alternately includes a plurality of first insulating films and a plurality of electrode layers in a first direction, and includes a non-staircase portion and a staircase portion provided in a second direction of the non-staircase portion. The device further comprises a first support portion that includes a second insulating film provided within the staircase portion. The laminated film includes a plurality of partial laminated films stacked in the first direction, and the first support portion includes a plurality of partial support portions provided within the plurality of partial laminated films. The plurality of partial support portions include a first partial support portion having a first major axis and a first minor axis in plan view, where the angle between the second direction and the first major axis is smaller than the angle between the second direction and the first minor axis, and a second partial support portion having a second major axis and a second minor axis in plan view, where the angle between the second direction and the second major axis is larger than the angle between the second direction and the second minor axis.

Disclosed are semiconductor packages and their fabrication methods. The semiconductor package comprises a first substrate having first pads on a first surface of the first substrate, a second substrate on the first substrate and having a plurality of second pads on a second surface of the second substrate, and connection terminals between the first substrate and the second substrate and correspondingly coupling the first pad to the second pads. Each of the connection terminals has a first major axis and a first minor axis that are parallel to the first surface of the first substrate and are orthogonal to each other. When viewed in a plan view, the first minor axis of each of the connection terminals is directed toward a center of the first substrate.

A parallel high-efficiency composite flexspline-based internal-meshing harmonic transmission in a motor rotor. A moving component of the parallel high-efficiency composite flexspline-based internal-meshing harmonic transmission consists of a thin-walled composite flexspline and rolling wave generators; outer raceways of inner rings of flexible bearings and inner bevel gear rings are integrated at two ends of the thin-walled composite flexspline, and an inner gear ring is integrated in the middle thereof; the rolling wave generators are respectively and fixedly connected to two ends of a hollow inner rotor of a motor, the structural dimensions of the rolling wave generators being the same, but a semi-minor axis at one end being coplanar with a semi-major axis at the other end; a motor outer stator, to which two cap-shaped rigid gears are fixed, functions as a stationary component; by means of antisymmetric deformations of the two ends of the composite flexspline, half of an input torque of the motor is amplified in the same proportion by two back-to-back parallel internal-meshing harmonic transmission assemblies having same structural parameters, and, after superposition on a constant-circular middle section of the composite flexspline, the torque is output by means of a variable-stiffness coupling formed by the inner-wall gear ring of the composite flexspline and a hollow splined shaft. Three waveform calculation formulas for the composite flexspline are provided, and a curvature inflection point value is introduced to determine the meshing mode between the composite flexspline and the bevel teeth of the rigid gears; the wall thickness of the composite flexspline is effectively reduced, and the middle section does not require a circularity-maintaining constraint, such that the elastic deformation energy and friction power consumption can be reduced, thus achieving high transmission efficiency.

This bending wave speaker comprises a diaphragm and an actuator that is disposed on the diaphragm and vibrates the diaphragm. The shape of the diaphragm is a parallelogram or an ellipse. When the diaphragm is a parallelogram, the ratio of the length of a first side, which is the longest side of the parallelogram, to the length in a direction perpendicular to the first side is an irrational number. When the diaphragm is an ellipse, the ratio of the major axis to the minor axis of the ellipse is an irrational number.

This invention discloses a centering support and a sound-generating device. The centering support is applied to the sound-generating device and has a major axis side and a minor axis side. The ratio of the length of the major axis side to the length of the minor axis side is greater than or equal to 1.5. The centering support has at least two mounting holes, which are spaced apart and penetrate the centering support. The mounting holes are used for the voice coil of the sound-generating device to pass through and be fixed. This invention aims to provide a centering support that can ensure the axial synchronous movement of two voice coils and improve sound quality. When applied to a sound-generating device, this centering support ensures the axial synchronous movement of two voice coils, reducing nonlinear distortion caused by the asynchrony of the two voice coils during operation. Simultaneously, while satisfying the damping characteristics of an elastic system, the centering support also ensures the stiffness and strength of the centering support during vertical movement, making the product practical.

The present application is a pair of sliding members (3, 5) in which the sliding surfaces (S) slide against each other, wherein at least one of the sliding surfaces (S) is provided with a pocket group (60) in which pockets (11) are arranged in the radial and circumferential directions, the opening portion (11a) of the pocket (11) has a shape with an orthogonal major axis (L) and a minor axis (K), and the pocket angle (θ) formed by the radius direction axis (r) and the major axis (L), which passes through the intersection point (G) of the major axis (L) and the minor axis (K) of the pocket (11) and the center (C) of the sliding surface (S), varies in at least one of the radial and circumferential directions of the sliding surface (S).

Provided is a glass fiber-reinforced resin molded article with high mechanical strength and in which occurrence of undispersion of glass fiber is suppressed. In the glass fiber-reinforced resin molded article, glass fiber includes a flat cross-sectional shape having a minor axis D1 in the range of 3.0 μm or more and 10.5 μm or less and a major axis D2 in the range of 11.0 μm or more and 29.0 μm or less, the number average fiber length L (μm) of the glass fiber included in the glass fiber-reinforced resin molded article is in the range of 195 μm or more and less than 400 μm, the glass fiber content C (wt %) in the glass fiber-reinforced resin molded article is in the range of more than 50.0 wt % and 80.0 wt % or less, and the D1, D2, L, and C satisfy the following formula (1):1200.0≤C×L2 / (D1×D22)≤2550.0  (1).

Provided is a nitride phosphor with which it is possible to obtain a higher luminous flux when constituting a light-emitting device. The nitride phosphor contains, in a composition, at least one group 2 element selected from the group consisting of Mg, Ca, Sr and Ba, Eu, Si, Al and N. The molar content of the Al in the composition is less than or equal to the molar content of the Sr in the composition, and the molar content of the N in the composition is less than or equal to the molar content of the Eu. The ratio of the total molar content of the group 2 element to the total molar content of Eu is 0.8 to 1.1, the ratio of the molar content of Eu is 0.002 to 0.08, the ratio of the molar content of Si is 0.8 to 1.2, and the ratio of the total molar content of Si and Al is 1.8 to 2.2. The nitride phosphor has an average aspect ratio, which is the ratio of the minor axis to the major axis, of from 0.72 to 0.77 (inclusive), and an average circularity of from 0.82 to 0.92 (inclusive).

A shank adapter to form part of a drilling assembly, the shank adapter comprising: a main body extending axially between a first end and a second end; a male spigot portion provided at the second end having an externally threaded section and a non-threaded shank positioned axially intermediate the main body and the threaded section; a radially projecting shoulder positioned axially between the main body and the male spigot portion; the shank having a transition section positioned adjacent to the shoulder at the second end, the transition section having an outside diameter that increases in a direction from the spigot portion to the shoulder; wherein the cross-sectional shape profile of the outer surface of the transition section in the plane of the longitudinal axis comprises a segment of an ellipse having semi-major axis (a); a semi-minor axis (b) and an exponential factor (n) according to the equation: (formula (I)), characterised in that the ratio of the semi-major to semi-minor axes (a:b) is within the range 2b<a<8b.

A variable size linear beam shaping device and shaping method, wherein the shaping device comprises a controller, an image collector, a laser, a collimating mirror, a spot scaling lens group, a beam splitter, a Powell lens, a cylindrical concave lens, and a cylindrical convex lens; the cylindrical concave lens and the cylindrical convex lens are respectively movably arranged; the beam splitter is used for splitting the linear beam into two Gaussian beams, one of which is transmitted to the Powell lens for beam shaping, and the other is transmitted to the image collector; the image collector is in signal connection with the controller, and the controller controls the cylindrical concave lens and the cylindrical convex lens to move to a target position according to the beam diameter collected by the image collector, and changes the major axis size and the minor axis size of the linear beam by adjusting the distance between the cylindrical concave lens and the cylindrical convex lens, so as to obtain a linear spot size meeting the requirements. The focal length between the cylindrical concave lens and the cylindrical convex lens is changed to obtain a spot size meeting the requirements, which has better adaptability.

The utility model relates to an anti-pad structure for optimizing a PCB high-speed via hole, which comprises a via hole pile, the via hole pile penetrates through a multi-layer PCB, and two ends of the via hole pile are respectively connected with differential signal pair wires; the combined elliptical anti-bonding pads are distributed at the wire inlet and the wire outlet of the via hole pile and are composed of a large elliptical bonding pad and a small elliptical bonding pad which are tangent, the long axis length of the large ellipse is D1, the short axis length of the large ellipse is d1, the long axis length of the small ellipse is D2, and the short axis length of the small ellipse is d2; the single circle anti-bonding pad is arranged in the copper column area of the via hole pile, the diameter of the single circle anti-bonding pad is d3, and d3 is larger than the diameter d0 of the via hole and smaller than d1. According to the anti-bonding pad structure for optimizing the PCB high-speed via hole, the combined elliptical anti-bonding pad realizes impedance gradual change from differential routing to a copper column area by means of a specific size proportion, and signal reflection at the two ends of a via hole pile is reduced; a single circle anti-bonding pad optimizes impedance in a copper column area and is matched with a U-shaped shunting groove to shield electromagnetic interference, and meanwhile, a diversion groove is communicated with the U-shaped shunting groove to form a three-stage backflow path, so that crosstalk is reduced.