27results about How to "Inhibition reflex" patented technology

The invention discloses a Si-based composite microstructure photoelectric detector and a forming method thereof, and relates to the technical field of photoelectric detection. The Si-based composite microstructure photoelectric detector comprises a signal acquisition first terminal, a light enhancement absorption microstructure and a light transmissible signal acquisition second terminal. The enhanced light absorption microstructure is composed of a short-wave-band visible light enhanced absorption circular light sensitive area, a middle-wave-band visible light enhanced absorption inner ring light sensitive area and a long-wave-band visible light enhanced absorption outer ring light sensitive area. According to the invention, the composite light sensitive unit with an eagle-eye bionic structure is designed, and low reflection and high absorption of light of different wavebands are realized by regulating and controlling the geometric shapes and arrangement modes of the rod-shaped, prismatic table-shaped and conical subunits in the microstructure, so that the light response characteristic of the photoelectric detector is improved.

An optical termination device (30) is provided with a first termination waveguide (50). The first termination waveguide (50) includes a curved waveguide (51) and a curved waveguide (52). The curved waveguide (51) includes a unique maximum curvature portion (51m). The curved waveguide (52) includes a unique maximum curvature portion (52m). A first normal vector of the curved waveguide (51) in the maximum curvature portion (51m) and a second normal vector of the curved waveguide (52) in the maximum curvature portion (52m) face the same direction as each other.

A vehicle display device (1) is provided with: a housing (2) mounted on a vehicle (100) and having an opening (21a) facing a windshield (110); an image display device (3) that is disposed inside the housing and outputs display light (Lt) of an image; a mirror (4) that is disposed inside the housing, faces the windshield via the opening, and reflects the display light toward the windshield; a transparent cover (5) disposed in the opening and having a free-form surface formed so as to have an optical function; and a suppression means (6) that is disposed at the edge of the cover and suppresses reflection of light at the end surface (53) of the cover.

The invention discloses a hybrid photomultiplier coaxial output structure based on a microstrip line. The hybrid photomultiplier coaxial output structure comprises a semiconductor detector, a bonding wire, the microstrip line, a ground electrode, a lead pin, a medium, an outer conductor base and a detector lead pin. The semiconductor detector is used for receiving the photoelectrons converted by the photoelectric cathode and generating a current signal; the bonding wire is used for electrically connecting the semiconductor detector and the microstrip structure; the microstrip line and the ground electrode adopt gold-plated kovar alloy parts to form an in-tube microstrip structure; the guide pin and the detector guide pin are kovar alloy guide pins and form an inner conductor with a coaxial structure; the outer conductor base is a kovar alloy disc and forms an outer conductor with a coaxial structure; the medium is glass or ceramic. According to the coaxial output structure, a vacuum tube is of a 50-ohm microstrip structure, the exterior of the vacuum tube is of a 50-ohm SMA coaxial structure, and a complete 50-ohm coaxial line is formed by connecting a microstrip line and a guide pin together. The structure provided by the invention has the advantages of high transmission speed, small signal reflection and oscillation and the like, and is more beneficial to detection of ultrafast optical pulse signals.

A power supply system of a plasma processing apparatus disclosed in the present invention includes a high-frequency power supply, a bias power supply, and a power supply control section. The high-frequency power supply generates high-frequency electric power for plasma generation. The bias power supply supplies electric bias to a substrate support section. The power supply control section determines the frequency of the high-frequency electric power in each of a plurality of designated phase periods among a plurality of phase periods within a waveform period for the electric bias, so as to suppress reflection of the high-frequency electric power. The power supply control section determines the frequency of the high-frequency electric power in each of the phase periods other than the plurality of designated phase periods among the plurality of phase periods, by using an interpolation of the frequencies of the high-frequency electric power in each of the plurality of designated phase periods.

The utility model discloses AG glass which comprises an AG glass body, the surface of the AG glass body is fixedly connected with an AF coating, the inner side face of the AF coating is fixedly connected with an AG anti-dazzle layer, and the inner side face of the AG anti-dazzle layer is fixedly connected with a transparent frame. And the back surface of the transparent frame is fixedly connected with a reflecting film. According to the anti-dizziness high-transmittance AG glass, through the arrangement of the AG anti-dazzle layer, the reflecting film and the anti-dazzle cellulose triacetate film, the reflecting surface of original glass is changed into a matte diffuse reflection surface through the AG anti-dazzle layer, the reflected light can be affected to be blurred, the anti-dazzle effect is improved, and the moth eye protrusions distributed in equal columns are arranged on the surface of the reflecting film, so that the anti-dazzle effect is improved when strong light irradiates. According to the anti-dizziness glass provided by the invention, the anti-dizziness cellulose triacetate film can absorb strong light ingested on the glass, the light reflection is inhibited, the anti-dizziness effect is achieved, the user experience is improved, and the anti-dizziness cellulose triacetate film further enhances the anti-dizziness capability, reduces the influence of the reflected light on human eyes, protects the body of a user and improves the safety.

The invention discloses a resonator, a filter and an electronic device, and belongs to the technical field of semiconductors. The resonator comprises a substrate which comprises an electrode finger region, bus regions located on the two opposite sides of the electrode finger region in the first direction, and gap regions located between the electrode finger region and the bus regions; the piezoelectric layer is positioned in the electrode finger region and the gap region, and is positioned on one side of the substrate along the second direction; an opening is formed in the edge of the piezoelectric layer, the opening is at least located in the gap area, and at least part of an interface between the piezoelectric layer and the opening tends to incline towards the direction of the electrode finger area; the first direction is perpendicular to the second direction; and the electrode layer is positioned in the electrode finger region, the gap region and the bus region, and is positioned on one side, deviating from the substrate, of the piezoelectric layer. According to the invention, a spurious mode can be suppressed, and the performance of the resonator is improved.

The invention provides a local oscillation noise suppression device for a superconductive tunnel junction mixer, and belongs to the technical field of terahertz detection. The device comprises a local oscillator signal source, a local oscillator light path, a superconductive tunnel junction mixer and a quasi-optical filter. The local oscillator signal source provides a local oscillator signal to the superconductive tunnel junction mixer through a local oscillator light path; the quasi-optical filter is located between the local oscillator signal source and the local oscillator light path and used for attenuating local oscillator power and reducing reflection of signals in the local oscillator light path. The quasi-optical filter is formed by machining an integrated metal plate, circular grooves are formed in the symmetrical positions of the two sides of the metal plate, and through holes are formed in the centers of the grooves and serve as attenuation windows. The environment adaptability is high, and normal-temperature / low-temperature stable work is supported; signal reflection and sideband noise are effectively suppressed by the composite design of the conical structure and the black body absorbing coating; and realizing accurate power matching based on a Gaussian beam theory.

The invention relates to a front-end conditioning circuit integrated packaging module for gravitational waves and a packaging method, belongs to the technical field of semiconductor packaging, integrates a front-end circuit, greatly reduces the circuit area, facilitates temperature control, and is beneficial to improving the temperature consistency of the front-end conditioning circuit. The front-end conditioning circuit is integrally packaged, so that electromagnetic interference protection of the circuit can be realized, the influence of cosmic radiation on the front-end analog circuit of the measurement system can be avoided when the space environment is used for measurement, and the anti-interference capability of the measurement system is greatly enhanced; the method is suitable for precise measurement of gravitational wave signals in satellite-borne and intense radiation application scenes.

The invention provides a near-infrared high-reflection structural color optical filter and a preparation method thereof, and relates to the technical field of optics, the near-infrared high-reflection structural color optical filter comprises a substrate, and a reflection layer, a first dielectric layer, a first absorption layer, a second dielectric layer, a second absorption layer and an anti-reflection layer which are sequentially formed on the substrate; the reflecting layer, the first dielectric layer and the first absorption layer form a first optical resonant cavity, and the first absorption layer, the second dielectric layer and the second absorption layer form a second optical resonant cavity; the absorptivity of the first absorption layer and the second absorption layer to visible light in a target color wavelength range is smaller than the absorptivity of the first absorption layer and the second absorption layer to visible light in a non-target color wavelength range, and the absorptivity of the first absorption layer and the second absorption layer to near-infrared light is smaller than a preset absorptivity threshold value. In this way, the two continuous asymmetric optical resonant cavities and the top anti-reflection layer are adopted, high-purity and high-brightness colors are achieved in the visible light range, the cooling function is achieved through the high reflectivity of the near-infrared band, cost is low, and the technology is simple.

The application belongs to the field of optical functional materials, and particularly relates to a micro-nano hierarchical structure optical window film based on dynamic phase separation regulation and a preparation method and application thereof. The application provides a micro-nano hierarchical structure optical window film based on dynamic phase separation regulation, which comprises a transparent substrate layer and an optical functional layer; the optical functional layer is an integrated structure; the optical functional layer comprises a high-refractive-index acrylate monomer, a low-refractive-index acrylate monomer and a structure directing agent. The high-refractive-index acrylate monomer comprises a thiourethane acrylate; the low-refractive-index acrylate monomer comprises trimethylolpropane triacrylate; and the structure directing agent comprises a polyether-modified polysiloxane acrylate. Through the innovative integrated micro-nano hierarchical structure and the controllable one-step self-assembly process, the application solves the contradiction that the antireflection and anti-dazzle performances are difficult to be simultaneously realized on the window film product, improves the reliability of the window film, and realizes excellent comprehensive optical performance.

The utility model relates to the technical field of I2C communication, in particular to a long-distance I2C bus signal enhancement circuit capable of intelligently inhibiting signal reflection. The circuit comprises a micro-control unit, an I2C bus and a slave, the slave is connected with the I2C bus through a common mode choke, the I2C bus is connected with the micro-control unit sequentially through a resistance matching network and a repeater, and a data line of the I2C bus is further connected with the micro-control unit through a differential voltage feedback circuit and used for dynamically monitoring data signals of the I2C bus. And the driving end of the resistance matching network is connected with the micro-control unit. According to the utility model, common-mode interference is suppressed through the common-mode choke, and parasitic capacitance and parasitic inductance are isolated through the repeater, so that the edge slope of a signal is optimized; through the resistance matching network and the differential voltage feedback circuit, the circuit resistance value is adjusted in real time, the signal reflection and offset phenomena are inhibited, and the signal quality is effectively improved.

The power supply system of the plasma processing apparatus of the present invention includes a high-frequency power supply, a bias power supply, and a power control unit. The high-frequency power supply is capable of generating high-frequency electrical power for plasma generation. The bias power supply is capable of supplying electrical bias to the substrate support. The power control unit is capable of periodically modulating the power level of the high-frequency electrical power during repetitions of a modulation cycle comprising at least two sub-periods. The power control unit is capable of adjusting the frequency of the high-frequency electrical power used in the nth phase period within the modulation cycle included in the feedback period continuing from the start time of each of the at least two sub-periods, based on changes in the frequency of the high-frequency electrical power in the nth phase period during repetitions of the preceding modulation cycle and changes in the degree of reflection of the high-frequency electrical power.

The invention relates to a display device and a manufacturing method thereof. According to one embodiment, a display device includes: a substrate; a lower electrode disposed above the substrate; a rib portion covering a peripheral portion of the lower electrode; an organic layer disposed on the lower electrode and including a light-emitting layer; an upper electrode disposed on the organic layer; a support body having a first surface disposed above the upper electrode and facing the lower electrode, and a second surface on the opposite side of the first surface; a first lens disposed on the first surface directly above the lower electrode and formed in a convex shape; an outer coating layer covering the first lens; a second lens disposed on the second surface directly above the rib and formed in a convex shape; and a light shielding layer that covers the second lens, in which the first lens includes at least a first layer that is in contact with the first surface and has a first refractive index, and a second layer that has a second refractive index higher than the first refractive index and overlaps the first layer.

The invention discloses a printed circuit board and a preparation method thereof, the printed circuit board comprises a substrate and transmission lines located on the substrate, the substrate is provided with at least one transmission line, each transmission line comprises an outer shielding layer, an inner transmission layer and a supporting layer, the outer shielding layer is of a hollow structure with an air cavity inside, and the inner transmission layer is of a hollow structure with an air cavity inside. And the inner transmission layer is suspended in the corresponding air cavity through the supporting layer and is insulated from the outer shielding layer. According to the printed circuit board, the signal transmission path is optimized fundamentally, the energy loss in the transmission process is remarkably reduced, and meanwhile, the reflection and crosstalk phenomena are effectively inhibited, so that the signal transmission characteristics of wide bandwidth, low loss and high isolation are realized.

The utility model belongs to the technical field of kitchen appliances, and discloses a shell device and a range hood, and the shell device comprises a shell and a noise reduction layer. A side plate assembly is arranged on the side face of the machine shell, the machine shell is provided with a smoke suction opening used for sucking oil smoke, a flow guide cavity communicated with the smoke suction opening is defined by the machine shell and the side plate assembly, and the noise reduction layer is located on the side, close to the flow guide cavity, of the side plate assembly. In this way, in the running process of the range hood, after noise generated by running of the draught fan module enters the machine shell, the noise reduction layer can play a role in buffering the noise, reflection and reverberation of the noise in the machine shell are effectively restrained, and therefore the intensity of the noise transmitted out of the machine shell is reduced, and the experience feeling of a user is improved.

The utility model relates to the field of transparent electromagnetic shielding, disclose a kind of antireflection transparent electromagnetic shielding film of antireflection, by transparent base film and the metal mesh grid of surface setting;The metal mesh grid is composed of intersecting metal wire, and the cross section of metal wire is triangle;There is tackifying layer between the metal mesh grid and transparent base film, and the top of metal mesh grid has covering layer.The utility model has the advantages of compared with prior art, solve the problem of the deficiency that the current metal mesh grid electromagnetic shielding film has high shielding efficiency while cannot have high transmittance.

Disclosed is an organic light emitting diode that suppresses external light reflection while reducing loss of light generated in an organic light emitting layer. The organic light emitting diode includes a substrate, an anode on the substrate, a bank on the anode and exposing a portion of the anode to define an emission area, an organic light emitting layer on the emission area and the bank, a cathode on the organic light emitting layer, a plurality of light-shielding patterns on the cathode and overlapping the bank, and a light loss inducing layer on the same plane as the plurality of light-shielding patterns and disposed between a pair of light-shielding patterns among the plurality of light-shielding patterns, the light loss inducing layer having a thickness identical to that of the plurality of light-shielding patterns and overlapping the emission area.

The utility model discloses a kind of multi-cavity radio frequency processing devices, belong to radio frequency power supply technical field, solve the radio frequency processing efficiency low, processing effect is not ideal and other problems caused by the simple structure of existing radio frequency processing device, simple control mode.The device includes: Q controller and signal distributor, N radio frequency module, matching module and cavity;Wherein, the output end of controller is connected with the input end of signal distributor one by one, and the input end of each signal distributor receives the PWM control signal of a way output by corresponding controller;Each signal distributor includes N output ends;The input end of nth radio frequency module is connected to the nth output end of all signal distributors, the input end of nth matching module is connected to the output end of nth radio frequency module, and the output end of nth matching module is connected to nth cavity;Q, N are all integers greater than 1, and n takes 1 to N.

The present invention provides a light-emitting unit and a lamp device. The lamp device can suppress the attenuation or reflection of radar waves caused by a light guide, and will not change the radar wave radiation pattern, and there is no loss of radar function. The lamp device also has: a light guide, which covers at least a portion of the electromagnetic wave radiation surface of the radar device, and a light source, which supplies light to the light guide. When the thickness of the light guide is set to TG and the wavelength of the radiated electromagnetic wave emitted by the radar device in the light guide is set to λd, TG is set in the following manner: when the reflection loss of the light guide relative to the radiated electromagnetic wave is less than the transmission loss, TG < λd / 2 is satisfied; when the reflection loss is greater than the transmission loss, the reflection loss is made less than -10dB.

The application provides a semiconductor device defect testing system and a semiconductor device defect analysis method, which comprise a waveform generator and a semiconductor analyzer. The output end of the waveform generator is connected to the gate of a semiconductor device to be detected through a gate probe. The first input end of the semiconductor analyzer is connected to the source of the semiconductor device to be detected through a source probe, and is also connected to the drain of the semiconductor device to be detected through a drain probe. The second input end of the semiconductor analyzer is connected to the substrate of the semiconductor device to be detected through a substrate probe. Since the ground end of the waveform generator and the ground end of the semiconductor analyzer are both connected to a common ground end, the waveform generator and the semiconductor analyzer do not introduce noise due to connection to different ground ends, thereby improving the accuracy of the semiconductor analyzer in detecting source-drain current and substrate current, and further enabling the semiconductor analyzer to detect a small current of the order of a few picoamperes.

The application discloses a kind of based on parasitic reflection inhibition method of multi-frequency phase shift method, comprising: obtaining the deformed fringe image after object reflection;According to intensity information, using phase shift method, calculate truncated phase and generate modulation curve;Truncated phase is expanded into continuous phase per frequency;Judge whether there is minimum value in modulation curve, if yes, use auxiliary function peak position search continuous phase in which the fringe frequency that phase error is zero;Extract the truncated phase corresponding to the fringe frequency that phase error is zero, carry out phase expansion, and with the minimum number of 0 in modulation curve as the demarcation line, the phase order of the best frequency in the fringe frequency that phase error is zero is corrected in regional, to obtain correction result;According to correction result, calculate upper surface screen coordinate;Otherwise, according to maximum fringe frequency, calculate upper surface screen coordinate.

The invention discloses a Y2O3 (at) SiO2 (at) PPy (at) MnO2 wave-absorbing composite material with a multilayer core-shell heterogeneous frost-like structure and a preparation method of the Y2O3 (at) SiO2 (at) PPy (at) MnO2 wave-absorbing composite material. The wave-absorbing composite material disclosed by the invention is composed of multiple layers of core-shell microspheres and nanorods, and is of a frost-like structure; the multilayer core-shell microspheres are prepared by the following steps: by taking Y2O3 as a core material, sequentially coating a SiO2 layer and a PPy layer; and the nanorod is MnO2. According to the preparation method, yttrium oxide is taken as a core material, and the surface of the yttrium oxide is uniformly coated with SiO2 through a Stober method, so that a single-layer core-shell structure is formed. Then, C and N elements are introduced, the surfaces of the C and N elements are coated with a layer of PPy to form'frost branch 'Y2O3 (at) SiO2 (at) PPy, and the rod-shaped MnO2 is used as'frost branch', so that the interface polarization effect is enhanced, a conductive network is constructed, and the overall electromagnetic wave absorption efficiency is effectively improved. The wave-absorbing composite material solves the problems of insufficient attenuation capability and narrow effective absorption bandwidth of a single component, and shows extremely strong dielectric polarization capability. The preparation method is simple, low in production cost and suitable for industrial production.

This invention discloses a low-axial-ratio, high-power-capacity circularly polarized antenna with an isolation structure, belonging to the field of high-power microwave measurement technology. This invention adds an isolation structure between the antenna's circular polarization generation structure and the feeding structure to suppress the influence of different connection structures at the antenna's rear end. A typical isolation structure is a rearward-expanding metal surface. On the one hand, through appropriate tilt angle design, it effectively suppresses the forward reflection of the isolation structure itself, reducing its impact on the front-end circular polarization generation structure and ensuring low-axial-ratio characteristics. On the other hand, by adopting appropriate depth and size design, it effectively suppresses the backward propagation of surface current and reflection from the rear-end metal surface, reducing the impact of the rear-end connection structure on the antenna's low-axial-ratio characteristics. Finally, experimental verification shows that a circularly polarized antenna with an ultra-low axial-ratio is obtained. The isolation structure added in this invention effectively suppresses the backward propagation of surface current and the reflection from the rear-end metal surface without affecting the antenna's low-axial-ratio characteristics.

The utility model discloses a bipolar attenuator adopting a specifically packaged PIN diode, relates to the technical field of attenuators, and solves the technical problem that a traditional attenuator is difficult to consider both the size and the performance at the same time. The circuit comprises a positive-phase attenuation circuit and a negative-phase attenuation circuit which are vertically symmetrical, the input ends of the positive-phase attenuation circuit and the negative-phase attenuation circuit are electrically connected with a radio-frequency signal input end through a balun, and the output ends of the positive-phase attenuation circuit and the negative-phase attenuation circuit are electrically connected with a radio-frequency signal output end. The positive-phase attenuation circuit is electrically connected with a positive-phase control voltage, the negative-phase attenuation circuit is electrically connected with a negative-phase control voltage, and only one of the positive-phase attenuation circuit and the negative-phase attenuation circuit is conducted during use; according to the utility model, the performance requirement is met, the miniaturization requirement is also met, the application scene is diversified, and the circuit can be effectively protected.

A display switching device, a button device and a switch for a game machine, which suppress the display screen of a display layer from appearing whitish by allowing the user to visually identify the reflected light of interference light reflected in a pixel area. The display switching device (10) switches the display image by switching the irradiation of light from multiple light source positions (7). The display switching device includes: a lens array (6) arranged with multiple lenses that allow light emitted from multiple light source positions to pass through respectively; a display layer (4) that includes a pixel area through which light focused by each lens of the lens array passes; and a diffusion layer (3) that is located on the opposite side of the light source position relative to the lens array and diffuses the transmitted light. The diffusion layer is optically bonded to a layer located on the light source position side of the diffusion layer, or is made of the same material as a layer located on the light source side of the diffusion layer.

In some examples, the display device can include an auxiliary black matrix disposed adjacent to the cover window. The auxiliary black matrix has a first thickness in the display area that is different from a second thickness in the non-display area. By controlling the thickness and optical density of the auxiliary black matrix, as well as the bank layer and the black matrix positioned corresponding to the non-light emitting area in the display area, the display area can have substantially the same optical density and / or light transmittance as the non-display area. A display device with improved reflection visibility can be achieved.