36 results about "Plane parallel" patented technology

The invention discloses a low-stress assembly structure of an off-axis two-reflector system. The low-stress assembly structure comprises a large-caliber off-axis parabolic reflector clamping mechanism, a small-caliber off-axis parabolic reflector clamping mechanism and a connecting long plate, the large-aperture reflector realizes flexible surface contact support by adopting a hook surface magic tape, the back of the large-aperture reflector protrudes out of the magic tape, the mass of the protruding part of the back and the mass of non-uniformly distributed paraboloids are balanced, and the gravity deformation of the paraboloids is effectively weakened. The small-caliber reflector realizes V-shaped contact clamping through two cylindrical pins which are arranged at an angle of 120 degrees, and the back of the small-caliber reflector also protrudes out of the cylindrical pins. The two clamping mechanisms both adopt a composite constraint mode of rotation limiting of a plane-parallel block, movement limiting of a flexible jackscrew and back silica gel gluing. The two mechanisms are rigidly connected into a whole through the long connecting plate. Through the back protruding supporting design and the flexible constraint mechanism, surface shape distortion caused by clamping stress and self weight is reduced, and the system stability and the optical performance are improved.

To realize more horizontal / vertical resolution points and higher frame rate than the conventional one.SOLUTION: A light beam deflector comprises: a wavelength variable semiconductor laser 1; a plane optical waveguide circuit 3 that splits light emitted from the wavelength variable semiconductor laser 1 into first number of beams same as the number of areas obtained by dividing an object space in a first direction, and emits the beams so as to select the emission position of the split beams in the first direction so that a position of one pixel in each corresponding area is irradiated with the beams; a dispersive element 5 that deflects the first number of beams emitted from the plane optical waveguide circuit 3 respectively at angles according to wavelengths of the beams in a plane parallel to a second direction perpendicular to the first direction; an optical system 6 that converts the first number of beams emitted from the dispersive element 5 to be parallel to an axis of the optical system; and an optical system 7 that deflects the first number of beams emitted from the optical system 6 to be emitted to the object space.SELECTED DRAWING: Figure 1

The application discloses a security check image acquisition method and device, a security check system and a storage medium, relates to the field of active millimeter wave human body security check technology, and can acquire high-quality millimeter wave human body security check images in real time. The method comprises the following steps: constructing target space distribution information of a target object surface contour according to distance information of a plurality of reflection points obtained by detecting the target object by using a ranging sensor; wherein the plurality of reflection points comprise points on the target object surface; determining a target amplitude value of a target position point in the target space distribution information according to echo signals obtained by detecting the target object by using a millimeter wave scanning array; the target position point is a point in a two-dimensional plane parallel to a scanning plane of the millimeter wave scanning array; the target amplitude value is used for representing scattering intensity of the target position point to electromagnetic waves emitted by the millimeter wave scanning array; and determining a two-dimensional image of the target object according to the target space distribution information and the target amplitude value.

A device for determining an encoder magnet rotation angle is provided, wherein the device includes an encoder magnet and a number of n greater than or equal to two magnet sensors. The magnetic field includes a plurality of plane-parallel magnetic field planes, wherein a surface normal of the plane-parallel magnetic field planes is parallel to an encoder magnet rotation axis. The magnetic field further includes a plurality of magnetic field vectors in the plane-parallel magnetic field planes. The two magnet sensors are in at least one of the plane-parallel magnetic field planes, wherein a first magnetic field vector has a first angle at a position of a first magnet sensor, and wherein a number n−1 of further ones of the magnet sensors are arranged at positions in the magnetic field whose magnetic field vectors have an angle which satisfies the equationθi=θi-1+360⁢°n,wherein 1<i≤n.

This invention relates to the field of profile processing technology, specifically disclosing a method for cutting profiles. The method includes the following steps: determining the lengths of each side of the profile's cross-section; summing the lengths of all parallel sides to obtain the total length, defining them sequentially as a first group and a second group according to their total length; randomly selecting one side from the first group as the first side, and randomly selecting one side from the second group as the second side; determining the angle between the first and second sides as α; passing the profile through the fixed blade's fixed edge and the moving blade's moving edge; setting the first side parallel to the horizontal plane, and moving the moving blade relative to the fixed blade along a first direction to complete the cutting of the profile, wherein the angle between the first direction and the horizontal plane is half α. This method avoids deformation of the first and second sides, prevents burrs caused by deformation, avoids secondary shaping, saves costs, and helps ensure the strength and other properties of the profile.

A light distributing device configured for, in use, distributing, over a scene to illuminate light rays that come from an auxiliary light source, and which comprises: a planar waveguide, with a core layer disposed between the two cladding layers; and an extraction set, located in the planar waveguide, and constituted by a plurality of diffraction gratings distributed in the two dimensions of a plane parallel to the plane of the planar waveguide.

The application discloses a method and system for determining the height of a rock mass through shadows at different angles, wherein the angle difference of the projection of a light source on the ground through the vertex of the rock mass under the irradiation of the light source at multiple different angles is obtained, and the rock mass image obtained by the camera under the irradiation of each light source is obtained, the camera shoots on a plane parallel to the projection plane; based on the rock mass image, a detection contour image is obtained; a plurality of detection rock mass contours and a plurality of detection shadow contours are subjected to correlation operation to obtain a correlation contour; the length of the shadow is obtained based on the correlation contour; and the height of the rock mass is obtained based on the length of the shadow and the angle difference. The height of the rock mass can be directly determined according to the shadow image information at different angles, the operation is simple, the height of the rock mass can be detected conveniently, the detection precision is high, and the height of the rock mass can be detected. The height of the rock mass can be obtained through the above scheme for different scenes, and the actual applicability is high.

This invention relates to the field of calibration equipment technology, specifically to a bidirectional calibration structure. A reference body and a stop block are connected to both ends of an upper base, with a clamping assembly connected to the stop block. A Y-axis adjustment assembly is fixedly connected to a lower base, and an X-axis adjustment assembly is fixedly connected to the upper base. The part to be calibrated is connected to an adjustment block. The clamping assembly applies a directional thrust to the adjustment block, causing the inclined surface of the block to fit tightly against the inclined surface of the body. The clamping assembly is then locked to ensure the adjustment block is parallel to the reference body. The Y-axis adjustment assembly then pushes the upper base to move along the plane parallel to the upper base, causing the upper base and adjustment block to move synchronously. The upper and lower bases are then locked to ensure a fixed connection. The X-axis adjustment assembly then pushes the adjustment block to move along the plane parallel to the upper base, and the reference body and stop block are locked again, causing the inclined surface of the block to clamp tightly against the inclined surface of the body, thus locking the adjustment block and achieving multi-directional high-precision adjustment and calibration.

A camera module is provided. The camera module includes a first reflective member including a receiving groove formed on one surface thereof and a first optical surface provided within an area provided by the receiving groove, a second reflective member including a protrusion protruding from one surface thereof and at least partially accommodated in the receiving groove, and a second optical surface provided on one surface of the protrusion to be disposed to face the first optical surface, and an image sensor configured to detect at least a portion of light guided via the first optical surface and the second optical surface, wherein the receiving groove is configured to allow the protrusion to move in a first extension direction in a plane parallel to the first optical surface or the second optical surface, and to inhibit a movement of the protrusion in a second extension direction crossing the first extension direction.

The application provides a method and device for virtual focal point size detection of an objective lens group mounting seat, which comprises the following steps: constructing a three-dimensional orthogonal reference surface through a three-coordinate device according to the measured machining and installation reference of the objective lens group mounting seat, and establishing a Cartesian coordinate system based on the three-dimensional orthogonal reference surface; measuring three-dimensional size data of two objective lens mounting holes on the objective lens group mounting seat through the three-coordinate device, and constructing two axis lines corresponding to the two objective lens mounting holes respectively according to the three-dimensional size data; constructing a focal plane, wherein the focal plane is parallel to a Top surface in the three-dimensional orthogonal reference surface; judging whether the two intersection points formed between the two axis lines and the focal plane are located in a virtual small ball with a center being a point where the focal plane and the axis line of the Cartesian coordinate system intersect, and determining that the objective lens group mounting seat is qualified if yes. The application is helpful to use the qualified objective lens group mounting seat to an optical system.

The present application relates to a kind of thirteen degrees of freedom gear measuring device based on multiple groups of line structure light orthogonal view field, belong to the field of precision testing technology and instrument.For the problems of high angle sensitivity, low measurement efficiency and poor universality of existing gear measuring device, the device includes platform-rail unit, main and auxiliary measuring head unit and precision rotary table unit.Innovatively, double measuring head cooperative measurement is used, the main measuring head light plane is parallel to the gear axis to obtain involute information, and the auxiliary measuring head light plane is perpendicular to the axis to obtain tooth direction information, which constitutes orthogonal view field to realize data fusion and eliminate measurement blind area.The main and auxiliary measuring head unit both have six degrees of freedom pose adjustment capability, and through motor drive, the precise adjustment of X, Y, Z axis spatial position movement and rotation around three axes is realized, the thirteenth rotational freedom is provided by precision rotary table, and the closed-loop feedback system of linear grating and circular grating is further used to improve measurement accuracy and efficiency, suitable for full-parameter high-precision measurement of various gears.

A bucket information acquisition device for acquiring information regarding the shape of a bucket that rotates about a rotational center axis along a predetermined moving plane in a construction machine includes: a distance distribution acquisition unit that acquires the three-dimensional distance distribution of the bucket with respect to a reference point; a reference cross section extraction unit that extracts, from the distance distribution acquired by the distance distribution acquisition unit, a reference cross section which is a cross section of the bucket obtained by cutting the bucket along a plane parallel to the moving plane; an approximate line identification unit that identifies, based on the reference cross section, an approximate line approximating the reference cross section composed of a straight line and a curve; and a bucket shape calculation unit that calculates bucket shape information regarding the shape of the bucket based on the approximate line.

Multifunctional device for managing a pallet with its load includes: —a base element (3) assigned to be placed and / or fixed to a floor or surface; —a frame member (5) connected to the base element (3) via a motorized rotation member (7) which can be operated to rotate the frame member around a horizontal or nearly horizontal rotation axis (R); —at least one pair of platform elements first (9) and second (11) facing each other and defining respective geometric planes parallel to each other and to the rotation axis (R), where at least the first platform element (9) can be operated, by means of a respective actuator, approaching and moving away from the second platform element (11); —at least one pair of wall elements first (15) and second (17) facing each other and defining respective geometric planes parallel to each other and to the rotation axis (R) and perpendicular to said platform elements (9, 11), where at least the second wall element (17) can be operated, by means of a respective actuator, approaching and moving away from the first wall element (15).

To provide an optical component that makes it possible to simplify the alignment between a light path and a meta-lens.SOLUTION: An optical component 11 is formed from a light-transmissive material, and includes: a first plane 14a that is received by a plane 13a which defines an entrance / exit end for each light path having mutually parallel optical axes 15; and a second plane 14b that is parallel to the first plane 14a and on which a meta-lens 16 is established for each optical axis 15.SELECTED DRAWING: Figure 1

The invention provides a depth sensor calibration method, electronic equipment and a system. The method comprises the following steps: receiving a jig plate image and a calibration plate image; determining a plurality of first mark point coordinates in the calibration plate image and a plurality of second mark point coordinates in the jig plate image; fitting a calibration plate plane and determining a first center coordinate of the calibration plate; fitting the plane of the jig plate and a second center coordinate of the jig plate; calibrating the plane parallelism of the depth sensor according to the calibration plate plane and the calibration plate plane, and calibrating the center of the depth sensor according to the first center coordinate and the second center coordinate; thus, the binocular camera can obtain three-dimensional point cloud data of the jig plate and the calibration plate through stereoscopic vision, complete postures of the two fitting planes are directly solved, global three-dimensional posture comparison is achieved, and the calibration precision of the plane parallelism is improved; the offset of the depth sensor relative to the center of the calibration plate can be accurately calculated, and the calibration precision of the center of the depth sensor is improved.

The present disclosure relates to a method (300) of forming an optical component (350), the method (300) including: providing (310) a plurality of optical elements (302) on a first surface (304a) of a substrate (306); for each optical element (302) of the plurality of optical elements (302): providing (320) a respective solid adhesive element (308) on a second surface (304b) of the substrate (306) in correspondence of the respective optical element (302), wherein the second surface (304b) is opposite to the first surface (304a), wherein the adhesive element (308) corresponding to the optical element (302) has a lateral extension (318) in a plane parallel to the surface (304a, 304b) of the substrate (306) less than a lateral extension (316) of the optical element (302) in the plane; and carrying out a singulation process (330) to separate the plurality of optical elements (302) into individual optical components (350).

The application relates to a visual monitoring system for the perpendicularity of a component based on a plumb line, which comprises a side plate installed on one side of the component, a pointer strip serving as a plumb line mark and hung on the side plate, the pointer strip being provided with two pointers, namely an upper pointer and a lower pointer, two scales fixed on the side plate and parallel to the horizontal plane, the scales being an upper scale and a lower scale, the end of the upper pointer pointing to the scale of the upper scale, and the end of the lower pointer pointing to the scale of the lower scale, and a camera configured to collect a current image containing the two pointers and the corresponding scales, and an industrial computer configured to recognize the readings of the two pointers on the corresponding scales at the current time according to the current image and calculate the perpendicularity of the component. The pointer strip is hung on the side plate as a plumb line mark, the pointers are used for representing the direction of the plumb line above the two scales, and the scales provide a reference for the horizontal position of the ends of the pointers, so that the structure is simple, installation is convenient, and the visual monitoring system is suitable for different scenes.

The method for imaging an object to be imaged includes: generating, using a lighting device (2), a series of illumination patterns; for each illumination pattern, carrying out a stimulating phase in which translations of the illumination pattern are carried out over an entrance of a square-core multimode optical fiber (4) by means of at least one translating device (3a) of an optical system (3) placed between the lighting device (2) and the entrance of the square-core multimode optical fiber (4), the translations being carried out in a plane parallel to the entrance plane of the square-core multimode optical fiber (4); for each stimulating phase, carrying out an acquiring phase in which the signal generated by the illumination pattern on the object to be imaged (O) placed at the exit of the square-core multimode optical fiber (4) is measured by a signal-measuring device (5; 9); and reconstructing, using a computing device (6), by the signal measured in each acquiring phase, the object to be imaged.

In the linear motion guide device, a plane passing through the width direction center of the slider body and the length direction axis of the guide rail is set as a perpendicular center plane (CP), a plane orthogonal to the perpendicular center plane (CP) and passing through the straight line portion center line of the rolling passage is set as a horizontal reference plane (HP), and a plane parallel to the perpendicular center plane and intersecting the chamfer portion is set as a perpendicular reference plane (VP), at this time, the surface of the chamfer portion is located on a rotation locus centered on a point (O2) in a cross section orthogonal to the straight line portion center line, the minimum radius of the rotation locus is larger than the groove bottom radius (r) of the first rail surface, and the point (O2) is a point offset from the groove bottom center (O1) of the first rail surface in a manner away from the first rail surface along the horizontal reference plane (HP).

The application relates to a camera measurement field establishment method and a target, which comprises the following steps: determining the theoretical coordinates of a measured point according to the digital model of a measured object; adjusting the size of a target mark according to an actual working distance; installing a target base on the measured point of the measured object; manually adjusting the angle of the target mark according to the image quality of the mark in the camera field of view, so that the target mark plane is parallel to the camera view plane; taking a photo to calculate the three-dimensional coordinates of the mark center point in the camera coordinate system; calculating the three-dimensional coordinates of the measured point in the camera coordinate system according to the size information of the base and the target and the conversion relationship formula of the target mark center and the measured point; repeating the above steps to record the three-dimensional coordinates of the measured point in the camera coordinate system and the known coordinates of the measured point; calculating the relationship between the measured point coordinates in the camera coordinate system and the known coordinates of the measured point by adopting an optimal fitting algorithm according to the recorded measured point coordinates, and then establishing the measurement field of the camera; and finally realizing the rapid establishment of the measurement field of the camera.

Disclosed is a housing (1) for a crown seal, the housing comprising a corrugated side wall (3) having a number N of projections (5) alternating along a circumferential direction with a number N of recesses (6), each recess terminating at a lower end point defining a reference plane (E), each projection terminating at a peripheral end point (A), on each projection, each projection having a plurality of recesses (6), each recess (6) defining a reference plane (E). An intermediate point (B) is defined at an axial distance from a respective peripheral end point, said axial distance measured in a direction orthogonal to said reference plane being equal to 1 mm, a section (AB) defined by said peripheral end points and said intermediate point forming an acute angle greater than 45 degrees with a plane parallel to said reference plane.

An electrophoretic mobility apparatus comprising a light source, a sample fiberoptic path along which a first source of light including a sample beam travels from the light source, a sample cell along the sample fiberoptic path that receives the first source of light, a reference fiberoptic path along which a second source of light including a reference beam travels from the light source; a lens along the reference fiberoptic path that forms a plane parallel beam from the second source of light; a modulator along the reference fiberoptic path that provides frequency control of the second source of light, a beamsplitter combines the reference beam with a fraction of light scattered from the particles and forms a coherent beam, and a detector comprising an array of photo detector elements onto which the coherent beam is incident, wherein each detector element produces time varying signals from the coherent beam.

To fit an end panel to an opening of a shell while accurately holding the end panel at a predefined three-dimensional posture and a position during a manufacture of a container of an exhaust system.SOLUTION: In a container of an exhaust system in which both ends of a shell is closed by an end panel where a cylindrical part having an elliptical cross section is formed at a peripheral edge part, a first plane which is a plane parallel with a first axis which is a center axis of the shell is provided at a part other than a fitting part of the end panel with the shell. In a vertical projection onto a plane orthogonal with the first axis which is a center axis of the shell, a first normal line which is a normal line of the first plane is parallel with a first diameter which is a maximum diameter of the end panel or the first normal line and the first diameter forms an acute angle of 45 degrees or less at a position closer to the first axis than an intersection point of the first normal line and the first plane in both of the direction parallel with the first diameter and the direction orthogonal with the first diameter. When fitting the cylindrical part of the end panel with openings on both ends of the shell, a first contact face which is a predefined plane formed on holding means comes into plane contact with the first plane to set the end panel with the holding means in a predefined posture.SELECTED DRAWING: Figure 15

To provide a lens device that enables 360-degree field-of-view shooting while suppressing reflections of objects other than the subject. [Solution] The lens device has first and second optical systems and a mount, the first and second optical systems each having a first optical axis, a bent optical section, and a second optical axis extending from the object side to the image side, the mount has a central axis parallel to the second optical axes of the first and second optical systems and passing through the center of the mount, the first optical system has a first nodal point which is a node between the light taken in from the first optical system and the interior of the imaging device body, the second optical system has a second nodal point which is a node between the light taken in from the second optical system and the interior of the imaging device body, the central axis intersects with a straight line including the first optical axis of the first and second optical systems, and when projected onto a plane parallel to at least one of the first optical axes of the first and second optical systems and the central axis, the mount is positioned within a triangular region connecting one of the two points where the maximum angle of view portions of the incident light beams of the first and second optical systems intersect, and the first and second nodal points.

The utility model relates to a kind of handling devices, comprising: mounting structure;Visual mechanism and suction nozzle mechanism are installed on the mounting structure;Adjusting mechanism, at least one of the suction nozzle mechanism and the visual mechanism is adjustable between the position of the adjusting mechanism and the mounting structure;The adjusting mechanism connected with the suction nozzle mechanism is used to adjust the adsorption surface of the suction nozzle mechanism and the first plane parallel;The adjusting mechanism connected with the visual mechanism is used to adjust the optical axis of the visual mechanism and the first plane vertical.In the present application, the mode of adjusting the suction nozzle mechanism and / or visual mechanism by adjusting mechanism, relative to prior art, when adjusting, suction nozzle mechanism and / or visual mechanism can be adjusted without disassembling from mounting structure, time-saving and labor-saving.

Embodiments of the present disclosure generally relate to augmented reality waveguides for augmented, virtual, and mixed reality. More specifically, embodiments described herein provide waveguides with a large field-of-view and a method of forming the same. In one embodiment, a waveguide is provided. The waveguide includes an incoupler (IC) grating. The incoupler (IC) grating includes a plurality of blazed structures disposed over a substrate. The plurality of blazed structures having a blazed surface with a slant angle relative to a plane parallel to the substrate. The waveguide further includes a metal material disposed over the plurality of blazed structures. An intermediate grating and an outcoupler (OC) grating each including a plurality of device structures. The plurality of device structures having a variable depth.

An electrophoretic mobility apparatus comprising a light source, a sample fiberoptic path along which a first source of light including a sample beam travels from the light source, a sample cell along the sample fiberoptic path that receives the first source of light, a reference fiberoptic path along which a second source of light including a reference beam travels from the light source; a lens along the reference fiberoptic path that forms a plane parallel beam from the second source of light; a modulator along the reference fiberoptic path that provides frequency control of the second source of light, a beamsplitter combines the reference beam with a fraction of light scattered from the particles and forms a coherent beam, and a detector comprising an array of photo detector elements onto which the coherent beam is incident, wherein each detector element produces time varying signals from the coherent beam.

A display device includes a display panel and a light-emission board which includes a base substrate and light-emission units, and a maximum size of the light-emission unit in a direction parallel to the base substrate is not greater than 3 mm; connecting lines of centers of four immediately adjacent light-emission units define a quadrangle; a connecting line of centers of two light-emission units that define the quadrangle and have a largest distance therebetween passes through two first points in edges, close to each other, of the two light-emission units; a distance between the two first points is a first distance D1; an included angle between an outermost light ray of light rays emitted by the light-emission unit and a plane parallel to the base substrate is θ; and a minimum distance between surfaces, close to each other, of the display panel and the base substrate is not less than D1*tan θ / 2.

The application discloses a wind power blade detection method and device, a computer storage medium and a program product. The method comprises the following steps: constructing an axis three-dimensional model of a root of a wind power blade; taking a plane parallel to a section along a diameter direction of the root as a reference plane, and sequentially scanning bolt sleeves on the root to obtain height data of the bolt sleeves; constructing a three-dimensional model of the root according to a size of a section circle of an end surface of the root and the height reference plane of the bolt sleeves; selecting at least two bolt sleeve combinations to obtain at least two limit planes; determining an included angle between each limit plane and the axis; and obtaining a target included angle between the axis of the root of the wind power blade and the end surface of the root according to the included angles between the at least two limit planes and the axis. According to the embodiment of the application, the accuracy of determining the included angle between the end surface of the root of the wind power blade and the axis of the root can be improved, and a separate measurement process is not needed, so that the production efficiency can be improved.

A display device includes a display panel and a light-emission board including a base substrate and light-emission units, and a maximum size of the light-emission unit in a direction parallel to the base substrate is not greater than 3 mm; connecting lines of centers of four immediately adjacent light-emission units define a quadrangle; a connecting line of centers of two light-emission units that define the quadrangle and have a largest distance therebetween passes through two first points in edges, close to each other, of the two light-emission units; a distance between the two first points is a first distance D1; an included angle between an outermost light ray of light rays emitted by the light-emission unit and a plane parallel to the base substrate is θ; and a minimum distance between surfaces, close to each other, of the display panel and the base substrate is not less than D1*tanθ / 2.