94 results about "Wire grid" patented technology

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 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

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 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.

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.

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.

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.

The present application relates to a display module comprising: a substrate which may include a plurality of pixel regions; the driving circuit layer is arranged on the substrate; a light emitting layer disposed on the driving circuit layer and continuously extending across the pixel region; a plurality of color filters disposed on the light emitting layer and overlapping the pixel regions, respectively; a light blocking pattern disposed between the color filters and including a metal material having a multilayer structure; a phase retardation plate disposed on the color filter to retard the phase of the incident light; and a wire grid polarizer including a plurality of metal patterns spaced apart from each other by a distance.

The utility model provides a focal plane full polarization sensing device, including substrate, phase delay layer, polarization detection layer and CCD sensor, the phase delay layer and polarization detection layer are arranged on one side of substrate in proper order, the phase delay layer has a plurality of phase delay zone in array arrangement, and the CCD sensor is arranged in the phase delay zone. The phase delay area comprises 2x < 2 > pixel units in different fast axis directions, the polarization detection layer is in single horizontal orientation, and the phase delay layer and the polarization detection layer are combined to form an elliptical polarization array, so that the simultaneous detection of four elliptical polarized lights is realized. The manufacturing process of the focal plane splitting polarization sensing device based on the metal wire grating is simplified, the manufacturing cost is reduced, efficient polarization imaging of the infrared band can be achieved, and the multi-band compatibility of the device is improved.

A display apparatus and a method of manufacturing the same are provided. The display device includes: a substrate; a display element layer disposed on the substrate and including 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 including a wire grid pattern in which an insulating pattern and a grid pattern are stacked, where the insulating pattern and the grid pattern contain doped ions.

This invention provides a single-phase three-wire grid-connected inverter circuit that can suppress common noise more effectively than conventional circuits. [Solution] A single-phase three-wire inverter circuit comprising: a voltage divider circuit comprising two capacitors, with the neutral AC side connection terminal connected between the two capacitors; a first leg comprising two switching elements, connected to the first AC side connection terminal via a first inductor between the two switching elements; a second leg comprising two switching elements, connected to the second AC side connection terminal via a second inductor between the two switching elements; and a third leg comprising two sets of two switching elements, each with a diode facing in opposite directions, connected to the neutral AC side terminal via a third inductor between the two sets of switching elements, passing through the midpoint of the voltage divider path.

The utility model relates to a display device and an optical device capable of improving brightness balance while improving transmissivity of a short wavelength area. The display device comprises a substrate (SSUB); a first electrode (AND) on the substrate; a light emitting layer on the first electrode; a second electrode (CAT) on the light emitting layer; and a wire grid polarizer (WGP) on the second electrode, the wire grid polarizer including a plurality of grid patterns (GP), a pitch between the grid patterns disposed corresponding to a blue light emitting region of a blue pixel providing blue light being smaller than a pitch between the grid patterns disposed corresponding to a light emitting region of a pixel providing light different from the blue light.

The application relates to the technical field of gratings, in particular to a metal wire grating structure and a preparation method thereof. The metal wire grating structure comprises, from bottom to top, a substrate, a reflection layer, a transparent dielectric layer and a metal grating layer which are stacked in sequence; wherein the thickness of the metal grating layer is not greater than 30 nm; when incident light irradiates the metal wire grating structure from the side of the metal grating layer far from the transparent dielectric layer, part of the incident light is directly reflected by the metal grating layer to form first reflected light, and the remaining part of the incident light enters the transparent dielectric layer through the intervals between the metal wires, is reflected by the reflection layer, and then is emitted again through the transparent dielectric layer and the intervals between the metal wires to form second reflected light; the phase difference between the first reflected light and the second reflected light is an odd multiple of pi. The application is at least beneficial to improving the anti-pollution ability and the anti-abrasion ability of the grating under the premise of ensuring that the grating has high diffraction efficiency.

The utility model discloses a 3D display screen forms wire grid polarizing layer or pastes high voltage and high temperature polarizing layer directly on the LED wafer surface, and polarizing structure is cut into the chip level with wafer, and the traditional secondary alignment is dispensed with, and the deviation caused by thermal expansion and cold shrinkage is avoided, adopts micro - nanometer processing or domestic material, and the dependence on foreign core film material and equipment is got rid of, and cost and supply chain risk are reduced. On the structure, the wire grid polarizing layer or polarizing layer of chip integration, cooperate adjacent pixel unit vertical absorption axis / reflecting axis and the phase difference film accurate angle setting, guarantee polarized light separation accuracy, improve 3D stability, the wire grid polarizing layer has the characteristics of cutting resistance and high temperature resistance, and the reliability is enhanced by superimposed protective layer, and the high density integration of pixel is realized in combination with COB technology, and the display effect and life are optimized.

The wire grid polarizers 10 and 30 described herein, and wire grid polarizers made by methods described herein, can have high performance across a broad range of the ultraviolet spectrum and across a broad angle of incidence. These polarizers can be durable (resistant to heat, moisture, ultraviolet light, and oxidation). The polarizer can include an array of wires 15 on a substrate 11. Each wire 15 can have a silicon core 12 and a pair of silicon dioxide ribs 13. The core 12 can be sandwiched between the pair of ribs 13, with each rib 13 adjacent to a sidewall 12s of the core 12. A rib width W13 can be ≥4 nm. Each wire 15 can also include a silicon dioxide cap 14. The core 12 can be encircled by a silicon dioxide ring 17.

The utility model relates to the technical field of steel wire grids, and discloses an anti-fatigue steel wire grid structure which comprises longitudinal steel wires and transverse steel wires, the longitudinal steel wires and the transverse steel wires are connected in a crisscross mode to form a plurality of grid units, and distributed flexible pressure-bearing node structures are arranged at the cross points of the longitudinal steel wires and the transverse steel wires. The distributed flexible pressure-bearing node structure comprises a longitudinal convex arch part which is formed by locally rolling a cross point area of a longitudinal steel wire. The anti-fatigue performance is remarkably improved through the unique node and buffering design, the longitudinal protruding arch part and the transverse protruding arch part are of the omega-shaped arch-shaped structure and are connected in a spot welding mode, the alternating load impact force can be buffered through arch-shaped deformation, stress concentration caused by excessive welding is avoided, and the anti-fatigue performance is improved. The elastic spiral connecting part further buffers stress with a specific screw pitch and a specific number of turns, and the arc-shaped transition part enables force transmission to be smoother and reduces fatigue damage accumulation.

The utility model provides a two-dimensional sensing grid suitable for monitoring damage to the bottom of a battery pack of an electric automobile and the electric automobile. The two-dimensional sensing grid comprises a first lead group, a second lead group and a third lead group, wherein the first lead group is attached to the bottom of a lower box body of the battery pack in an insulating manner in a first direction in a spraying manner; the second lead group is attached to the bottom of the lower box body of the battery pack in an insulating manner according to a second direction in a spraying manner; the first wire group and the second wire group are insulated and intersected in a plane where the bottom of the lower box body of the battery pack is located to form a wire grid; the wiring ends on the two sides of the first wire group and the second wire group are used for being electrically connected with an electric signal detection module, so that the monitoring unit can be suitable for battery packs with different actual structure surfaces, the material and construction cost of the monitoring unit is reduced, and the monitoring sensitivity and reliability are improved.

1. Name of the product in this design: Dual resistance wire grid strain gauge. 2. Application of this design: Used for force value detection in multi-dimensional force sensors and other mechanical sensors. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key features: a top view.

A polarizing plate (1) having a wire grid structure, which has a transparent substrate (10) and a lattice-shaped convex portion (11) arranged on the transparent substrate (10) at a pitch shorter than the wavelength of light in a used wavelength band and extending in a predetermined direction, the lattice-shaped convex portion (11) having, in order from the transparent substrate (10) side, a reflection layer (13), a dielectric layer (14), and an absorption layer (15), the width (b) of the reflection layer (13) being smaller than either of the width of the dielectric layer (14) and the width (grid width (a)) of the absorption layer (15). Thus, a polarizing plate in which the wavelength dispersion of the absorption axis reflectance can be more accurately controlled can be provided.