146 results about "Wire grid" patented technology

An object of the invention is achieved by a method for cutting an elongated shell-type object. The method may include steps of providing a gantry defining a portal and comprising a wire grid operable in the portal; operating the wire grid, whilst moving the shell-type object through the wire grid along a lateral-axis (Z) substantially perpendicular to the portal. The method is performed by a stationary gantry, where the shell-type object is moved through the portal. Thereby, the method is simplified as there is no need for a rail system for moving the gantry.

The invention discloses an all-solid-state snapshot full-Stokes parameter measurement and imaging enhancement sensor device. The all-solid-state snapshot full-Stokes parameter measurement and imaging enhancement sensor device comprises a micro-lens array module, a liquid crystal phase modulation module, a polarization wire grating array module and an image sensor module. The micro lens array module is composed of a plurality of micro lenses which are arranged in a two-dimensional mode, and incident light is focused on the photodiode of each pixel. The liquid crystal phase modulation module is composed of two high-speed liquid crystal variable phase delayers, and active phase modulation is carried out on the polarization state of incident light. Polarized light information in four polarization directions can be obtained only through single shooting in the polarization wire grating array module. The image sensor module calculates the full Stokes parametric polarization characteristics of the incident light. According to the invention, full-polarization information measurement of incident light can be realized only through single exposure, and a polarization enhancement mode is switched after measurement is completed, so that the imaging efficiency of the sensor in dark light scenes such as weak contrast target detection is greatly improved.

The invention provides a high-precision alignment method and equipment for laminated iron, and relates to the technical field of laminated iron processing. Wire grid moire fringe marking and concentric circle moire fringe marking are conducted on a substrate and a laminated film, composite marking is achieved, the phase difference of the film is calculated and analyzed by collecting wire grid moire fringe image data, and the alignment precision of the laminated iron is improved. The method comprises the following steps: collecting concentric circle moire fringe image data, fitting a circle center coordinate and a wire grating angle by using Hough transformation to obtain a rotation deviation, and carrying out deviation coupling on the rotation deviation, the transverse deviation and the longitudinal deviation to generate a deviation coupling matrix. The deviation coupling matrix is used for compensating and adjusting the laminating position and compensating errors, high-precision decoupling detection and dynamic correction of translation deviation and rotation deviation are achieved, the transverse, longitudinal and rotation precision is greatly improved, the effective area occupied by the marking size on a base plate is small, and the method is more suitable for production of laminated steel with narrow breadth and high-density typesetting.

The embodiment of the invention provides an auxiliary calibration method of a two-dimensional vision camera, and the method comprises the steps: starting a conveying belt, recording an initial value of a motor encoder, and guaranteeing the accuracy of data recording; the calibration plate is moved to the preset position associated with the industrial robot, and the workbench plane calibration is performed according to the numerical value change condition of the motor encoder, so that the installation inclination error of the workbench can be effectively compensated, and the calibration precision is improved; the industrial robot is controlled to move to the position above a nine-point grid in sequence at the following position of the calibration plate, physical coordinates are recorded, a mapping relation is established in combination with pixel coordinates shot by a camera, a conversion matrix is determined, automatic conversion between a robot coordinate system and a camera coordinate system is achieved, and calibration efficiency and consistency are remarkably improved; the passive electromagnetic calibration needle is matched with the calibration plate with the built-in two-dimensional electrified wire grid, and high-precision positioning is realized by utilizing an electromagnetic induction principle, so that the complexity and the cost of the system are reduced, and meanwhile, the reliability and the repeatability of the calibration process are ensured.

The invention relates to the technical field of force sensors, in particular to a miniature six-dimensional force sensor and a manufacturing method thereof, and the sensor comprises an elastic body which comprises an outer ring, an inner ring and a strain beam connected between the outer ring and the inner ring; the lower supporting piece is connected with the outer ring in an attached mode, and the face, facing the elastic body, of the lower supporting piece is provided with an inwards-concave containing cavity. The upper supporting piece is connected to the face, away from the lower supporting piece, of the elastic body, a boss protruding towards the elastic body is arranged on the upper supporting piece, the boss protrudes out of the lower surface of the upper supporting piece, and the boss is connected with the inner ring; wherein no more than two silicon strain gauges are fixed on the patch surface of each strain beam, and a first wire grid area arranged along the length direction of the strain beam and a second wire grid area arranged along the direction perpendicular to the first wire grid area are integrated on each silicon strain gauge. And the wire grids for detection in two directions are integrated on the silicon strain gauge, so that the number of patches is reduced, and the precision and the consistency of the patches are favorably controlled.

According to an aspect, a detection device includes: an optical sensor comprising a plurality of light-receiving elements configured to receive light; and a front light that is located on an object to be detected side of the optical sensor and comprises a light guide film and a plurality of light sources configured to emit light to a first side surface of the light guide film. A wire-grid polarizer configured to separate the light incident from the light source into first polarized light and second polarized light is located between the optical sensor and the front light.

A light-emitting transistor is disposed on a base substrate and includes a gate layer, a first insulating layer, a source layer, a barrier layer, a light-emitting functional layer, and a drain layer arranged in sequence along a direction away from the base substrate. The source layer includes a first wire grid structure, the first wire grid structure includes a plurality of first conductive strips arranged at intervals, and the plurality of first conductive strips are parallel to each other. The barrier layer covers surfaces of the plurality of first conductive strips, and a surface of the barrier layer away from the base substrate is parallel to the base substrate.

Provided is an optical instrument capable of obtaining desired polarization characteristics. The optical instrument is an optical instrument provided with a light source, an incident-side polarization element, a light modulation element, an exit-side first polarization element, and an exit-side second polarization element. The exit-side first polarization element has a wire grid structure and is provided with a plurality of convex portions arranged separately from each other at a pitch shorter than the wavelength of light of a wavelength band used by the light source on one surface of a transparent substrate. The rotation angle of the transmission axis of the exit-side first polarization element with respect to the transmission axis of the incident-side polarization element is within ±8.5°. The exit-side second polarization element has a wire grid structure and is provided with a plurality of convex portions arranged separately from each other at a pitch shorter than the wavelength of light of a wavelength band used by the light source on one surface of a transparent substrate. The convex portions are lattice-shaped convex portions extending in a predetermined direction. The lattice-shaped convex portions sequentially have a reflection layer, a dielectric layer, and an absorption layer from the transparent substrate side. The rotation angle of the absorption axis of the exit-side second polarization element with respect to the absorption axis of the incident-side polarization element is within ±0.7°.

Provided is a structurally birefringent inorganic wavelength plate having excellent heat resistance and durability and having a fine pattern. Furthermore, the present invention provides a method for producing an inorganic wavelength plate, which has a high yield even in the form of a fine pattern, can easily achieve a desired phase difference, and can stably obtain the desired phase difference. An inorganic wavelength plate having a wire grid structure is obtained by selective interaction between a polymer having a repeating unit containing a carbonyl group and a metal oxide precursor, the inorganic wavelength plate being provided with a transparent substrate and lattice-shaped protrusions, and lattice-shaped protrusions that are arranged on at least one surface of the transparent substrate at a pitch shorter than the wavelength of light in the use frequency band and extend in a predetermined direction, the lattice-shaped protrusions being mainly composed of a metal oxide.

This suppresses the tilting of the convex portions of the grid structure caused by the formation of the functional film, thereby improving optical properties. [Solution] The wire grid polarizing element 1 comprises a substrate 10, a grid structure 20 in which a base portion 21 and a plurality of protrusions 22 are integrally formed, a functional film 30 covering a portion of the protrusions 22, and a reinforcing film 51. The reinforcing film 51 is made of an inorganic oxide and is interposed between a portion of the protrusions 33 covered by the functional film 30 and the functional film 30, reinforcing the protrusions 22. The reinforcing film 51 covers at least the tip 22a and the upper sides of both sides 22b of the protrusions 22. The functional film 30 covers the top of the protrusions 22 via the reinforcing film 51, but does not cover the bottom side of the protrusions 22 or the base portion 21, and its coverage rate (Rc) is 30% or more and 70% or less.

The invention belongs to the technical field of optical measurement, and relates to an MEMS fatigue evolution law observation device based on off-axis digital holographic microscopy, which comprises a red light super-radiation light-emitting diode light source, a wire grid type beam splitter, an objective lens and a CCD, and is characterized in that a linear polarizer, a half-wave plate and the wire grid type beam splitter are fixedly arranged on a light path emitted by a red light super-radiation light-emitting diode; a half-wave plate, a beam expanding lens group, a plano-convex lens, a beam splitter prism, an objective lens and a sample table are fixedly arranged on an object light path in sequence, a reflector is arranged on a vertical light path, and an optical delay line, the beam expanding lens group and the plano-convex lens are fixedly arranged on a reference light path; after the reference light passes through the reflector and the beam splitter prism, the reference light interferes with the object light reflected by the beam splitter prism on the CCD and is observed. According to the invention, the hologram of the MEMS device under high-frequency vibration can be acquired, and the surface topography of the MEMS device is obtained through computer rapid phase unwrapping, so that the purpose of observing fatigue evolution of the MEMS structure in real time is achieved.

The invention provides a holographic metasurface structure. The holographic metasurface structure comprises a metal wire grating; the electric control optical switch layer is arranged on one surface of the metal wire grating, and the electric control optical switch layer is controlled by a control signal to be opened or closed; the geometric phase nanopillar array is arranged on the surface, away from the metal wire grating, of the electric control optical switch layer, and each nanopillar in the geometric phase nanopillar array has a preset horizontal size, a preset vertical size and a preset rotation angle. According to the invention, the display of a dynamic holographic image with a wide field of view and a large size can be realized.

The utility model provides a bending resistance testing device for cold-formed thin-walled section steel, which relates to the field of steel testing devices, is used for testing steel and comprises a shell, a positioning table is hinged to the right end of the shell, a pressure applying component is arranged in the left end of the shell, a plurality of hydraulic cylinders are symmetrically connected to the center of the shell up and down, and the hydraulic cylinders are hinged to the right end of the shell. The movable end of the hydraulic cylinder extends into the positioning table, the left end of the shell is connected with a frame, criss-cross steel wires are connected into the frame, the steel wires are in a grid shape, and rubber blocks are connected into steel wire grids. According to the bending resistance testing device for the cold-formed thin-walled section steel, a frame, steel wires and rubber blocks are arranged to form a blocking protective net cover. The to-be-tested steel is surrounded by the shell, the positioning table and the blocking protective net cover, the steel is isolated from the outside in the testing process, and therefore the protection effect is achieved. And damage to workers caused by steel bar breakage is avoided. And through cooperation of a rubber block and an elastic film, fragments generated by breakage are buffered, and the safety is improved.

The utility model discloses a modularization steel wire grating splicing device for soft foundation strengthening, which comprises a positioning frame and two connecting strips, a cavity is arranged in the positioning frame, the inner wall of the cavity is rotatably connected with a screw rod through a bearing, the top end of the screw rod is fixedly connected with a rotating handle, and the rotating handle is fixedly connected with the positioning frame. The outer surface of the lead screw is in threaded connection with a transmission threaded sleeve plate, the front face of the transmission threaded sleeve plate penetrates through the positioning frame and is fixedly connected with a transmission plate, and the bottom face of the transmission plate is fixedly connected with a pressing plate. According to the device, a rotating handle is rotated to drive a lead screw to rotate, so that a transmission screw sleeve plate, a transmission plate and a pressing plate move, precise positioning and pressing of a steel wire grating body are achieved, two connecting strips can be conveniently and rapidly spliced through buckles and clamping grooves, the splicing efficiency and precision are improved, a positioning pointed rod and an inserting nail are inserted into a soft foundation, and the splicing efficiency and precision are improved. The stability of the positioning frame and the connecting strips on the soft foundation is enhanced, displacement is prevented in the splicing process, and it is ensured that splicing work is smoothly conducted.

The invention discloses a dual-band polarization imaging optical system, which comprises an optical window, a spectroscope, a visible light imaging module and a medium-wave infrared polarization imaging module, and is characterized in that the visible light imaging module comprises a lens group and a visible light sensor, and the medium-wave infrared polarization imaging module comprises a plurality of lens groups, a wire grating polarization optical splitter and two medium-wave infrared sensors; visible light and medium-wave infrared light enter the dual-waveband polarization imaging optical system from the optical window, the visible light is imaged on the visible light sensor after being reflected by a long-wave-pass two-way light splitting film on the surface of the spectroscope, and an image is formed after photoelectric conversion; medium-wave infrared light passes through the long-wave-pass two-way beam splitting film and the beam splitter and then is separated into two kinds of polarized light through the polarization beam splitting system for independent imaging. According to the invention, the problem that the optical axes of visible light and infrared light are difficult to keep consistent in the prior art is solved; and the second problem is that an infrared polarization imaging system is difficult to efficiently integrate with a visible light imaging system.

To reduce partial deterioration of polarization transmission characteristics in a reflection polarization optical element composed of a curved substrate.SOLUTION: The reflective polarizing optical element includes a substrate having a curved surface part in which a surface forms a curved surface, and when viewed in a plan view in an optical axis direction, the curved surface part has a shape surrounded by a plurality of arcs each forming a part of the same circle in the plan view and a line connecting ends of adjacent arcs of the plurality of arcs, and a reflective polarizing film for a polarizing beam splitter having a wire grid structure, in which the shortest diameter among diameters passing through a center point of the circle in the plan view is defined as a short diameter.SELECTED DRAWING: Figure 1

The embodiment of the application discloses a display device, and relates to the technical field of display. The display device comprises a display panel and a peep-proof film. The peep-proof film comprises a plurality of wire grids arranged at intervals. The gaps of the plurality of wire grids form a plurality of slits, and the plurality of slits are filled with a light-transmitting medium. The refractive indexes of the wire grids and the light-transmitting medium are different. According to the technical scheme disclosed in the embodiment of the application, the peep-proof effect can be selectively opened, the transmittance of screen light can be ensured, user visual fatigue can be avoided, and when there is no power supply, the peep-proof film can be used as a polaroid. In addition, the scattering function of the light-transmitting medium can also widen the viewing angle.

A wire grid polarizer includes a substrate layer, a polymer wire grid layer, and a plurality of coating layers. The polymer wire grid layer is disposed on the substrate layer and includes a plurality of wire grid units. The plurality of wire grid units are formed on an upper surface of the substrate layer and extend along a first direction, and each wire grid unit has a top surface and first and second side surfaces on two sides along the first direction. The plurality of coating layers are individually formed on the first side surface of each wire grid unit. The plurality of coating layers are metal or non-metal dielectric materials. The present disclosure further provides a manufacturing method of a wire grid polarizer.

The utility model discloses a novel touch control film which comprises a touch control film body, a wiring area is arranged on the touch control film body, wire grids are distributed in the wiring area, an outgoing line wiring area connected with the wire grids is arranged on one side of the wiring area, a flexible circuit board is arranged on one side of the touch control film body, and fine wires in the outgoing line wiring area are welded to a welding disc of the flexible circuit board. Each fine wire comprises a series of multi-layer bent oblique line sections with a certain inclination angle relative to the vertical direction; according to the utility model, the path length of the lead can be effectively increased by the oblique line segment included in the fine lead, so that the welding firmness and the conductive performance are improved, the mechanical strength of the lead can be enhanced, the fracture risk caused by bending or stretching is reduced, and the overall reliability is improved; the micro wires are arranged in the form of oblique line segments, and the inclination angle is controlled between 20 degrees and 70 degrees, so that denser wiring can be realized in a limited space, and the space utilization rate is optimized.

The present application relates to force sensor technical field, especially to a kind of micro six-dimensional force sensor, redundancy output method and robot dexterous hand, the sensor includes: lower support, with the accommodating cavity being disposed towards one end opening;Elastomer, open end of lower support is connected, including with lower support connection outer ring, from the inner wall of outer ring inwardly extending strain beam and the inner ring being set in outer ring and being connected with the inner end of strain beam;Upper support, the center of upper support has connecting part, connecting part is fixedly connected with inner ring;Wherein, the shape of accommodating cavity is adapted to the shape of inner ring and strain beam, strain beam is also pasted with star-shaped silicon strain gauge, with common node at center, current from common node flows into the star-shaped divergent state in wire grid area around it.The present application is little by the above-mentioned setting to the influence of wire resistance and temperature drift, and redundancy output is provided, so as to reduce error, improve accuracy and reliability.

The application belongs to the technical field of laser illumination, and particularly relates to a laser illumination system for an LCOS display platform. The system comprises, in sequence from an LD light source illumination system to a lens, a first diffusion sheet, a collimation module, a uniform light module, a third mirror, a relay lens module, a metal wire grid, a retardation sheet, an LCOS chip and a polariscope. The collimation module comprises, in sequence, a double-face fly eye, a first collimation lens, a first mirror, a second diffusion sheet, a second mirror and a second collimation lens, which are installed between the diffusion sheet and the uniform light module. The laser illumination system provided by the application sets the collimation module and the uniform light module, and further improves the utilization rate of the laser light source and the display effect by optimizing the optical design and the beam shaping technology, so that the display quality and the user experience can be significantly improved.

The application discloses a reflective liquid crystal display device, which comprises an array substrate and a liquid crystal layer; the array substrate is provided with a first polaroid and a first metal wire grid polaroid, the first metal wire grid polaroid is arranged on the side of the first polaroid facing the liquid crystal layer, the light transmission axis of the first metal wire grid polaroid is parallel to the light transmission axis of the first polaroid; the array substrate is provided with a second polaroid and a second metal wire grid polaroid, the second metal wire grid polaroid is arranged on the side of the second polaroid facing the liquid crystal layer, the light transmission axis of the second metal wire grid polaroid is perpendicular to the light transmission axis of the second polaroid, and the light transmission axis of the first polaroid is perpendicular to the light transmission axis of the second polaroid; the light can be repeatedly reflected between the first metal wire grid polaroid and the second metal wire grid polaroid, so that the utilization rate of the light is improved; and the light passing through the second metal wire grid polaroid can be absorbed by the second polaroid, so that a black substrate layer does not need to be additionally arranged.

We provide a wire grid polarizer capable of reducing infrared reflectivity. [Solution] The wire grid polarizer 10 comprises a transparent substrate 11 and a grid-like protrusion 12 arranged on one surface of the transparent substrate 11 at a pitch of 1 / 2 or less of the wavelength of the incident infrared light and extending in a predetermined direction. The grid-like protrusion 12 has an aluminum layer 12a, and further has a β-FeSi2 layer 12b and an amorphous FeSi2 layer 12c on one side of the aluminum layer 12a.

The utility model discloses infrared polarized machine vision light source relates to in the technical field of detection light source. Infrared polarized machine vision light source includes mounting seat, light emitting part, first wire grid polaroid, first fixed part, second wire grid polaroid and second fixed part, and mounting seat is provided with containing cavity and light outlet, light outlet is provided with a plurality, and all with containing cavity intercommunication setting, first fixed part and the outer circumferential side of first wire grid polaroid and top edge abut, second fixed part and the outer circumferential side of second wire grid polaroid and bottom edge abut. The heat dissipation effect of first wire grid polaroid and second wire grid polaroid is good, and heat -resisting effect is good, and first fixed part and second fixed part can press together and fix first wire grid polaroid and second wire grid polaroid respectively, to can reduce the structural deformation degree of first wire grid polaroid and second wire grid polaroid, guarantee the stability of detection effect.

Provided are systems, methods, and apparatuses for routing polarization states of light towards a photodetector of a polarization sensor. In one or more examples, the systems, devices, and methods include routing a first polarization of light to a first wire grid of a wire grid array; routing a second polarization of light different from the first polarization of light to a second wire grid of the wire grid array; and filtering, via the wire grid array, the first polarization of light and the second polarization of light to sensor pixels of the photodetector.

A display device and a method of manufacturing the same are provided. The display device comprises a substrate, a display element layer disposed on the substrate, and comprising a first electrode, a light-emitting layer, and a second electrode, a phase retardation layer disposed on the display element layer, and a wire grid polarizer disposed on the phase retardation layer, and comprising a wire grid pattern in which an insulating pattern and a grid pattern are stacked, wherein the insulating pattern and the grid pattern contain doped ions.

The invention provides a wire grid polarizer of a deep ultraviolet composite structure. The wire grid polarizer comprises an optical substrate and a plurality of composite grid bars. Specifically, a plurality of composite grids are arranged on an optical substrate; the plurality of composite grid bars are arranged at intervals in a first horizontal direction and extend in a second horizontal direction intersected with the first horizontal direction; the composite grid bar comprises a conductive layer and a dielectric layer which are stacked. The present disclosure also provides a method of manufacturing a wire grid polarizer.

The application discloses a kind of ultrafast laser generation device.The device includes Yb-doped femtosecond laser light source, first focusing lens, first optical window, first energy transfer device, first level hollow capillary fiber, second optical window, concave mirror, half-wave plate, wire grid polarizer, second focusing lens, third optical window, first gas chamber, second level hollow anti-resonant fiber, second gas chamber, fourth optical window, 90° off-axis parabolic mirror, frequency-resolved optical gating pulse measurement device.By changing the inert gas type and air pressure in the first level hollow capillary fiber, the incident pulse spectrum is broadened using self-phase modulation effect;Then, the second level hollow anti-resonant fiber is filled with inert gas to generate air pressure gradient, and finally realizes flexible transmission of sub-20 fs ultrafast laser using soliton self-compression effect.

A solid feeding device comprises a stock bin, a hopper is installed at the top of the stock bin, the hopper is installed on the stock bin through a vertically-arranged material pipe, a wire grid used for playing a safety role is installed at the joint of the hopper and the material pipe, and a signal wire arranged in a tightened mode is installed on the wire grid. A rotary valve used for being matched with input of powdery solid materials is installed at the joint of the material pipe and the material bin. A pore plate used for filtering powdery solid materials, a control valve I and a control valve II are sequentially installed in the material pipe from top to bottom, the control valve I and the control valve II are used for controlling opening and closing of the material pipe, a feeding gap is reserved between the pore plate and the wire grid, a material level meter I is further installed on the material pipe at the feeding gap, a discharging gap is reserved between the control valve I and the control valve II, and a material level meter II is further installed on the material pipe at the discharging gap. And a material level indicator II is also mounted on the material pipe of the blanking gap. The device is high in safety, woven bags are difficult to fall into the stock bin, and meanwhile, after the woven bags fall into the stock bin, an operator can ensure safety and cannot be injured when taking out the woven bags.

To provide a light-emitting device capable of improving the extraction efficiency of emitted light.SOLUTION: A light-emitting device includes a light-emitting element including a semiconductor structure layer having a light-emitting layer, a phosphor layer formed on the light-emitting element and including a phosphor that is excited by light emitted from the light-emitting layer and emits fluorescence, a light-transmitting layer formed on the phosphor layer and having a transparent layer with a side surface that slopes outwardly as it faces upward, and a wire grid portion formed on the light-transmitting layer and including a light-transmitting substrate and a wire grid made of a plurality of linear metal bodies each arranged in a periodic row on the upper surface of the light-transmitting substrate.SELECTED DRAWING: Figure 2