74results about How to "No reflection" patented technology

The invention relates to a functional nano-coated high-definition rear-projection display screen and belongs to the material technical field. The display screen comprises a transparent substrate and a functional nano-coating. The substrate is made of transparent materials such as polymethyl methacrylate (PMMA) or polycarbonate (PC). The functional nano-coating contains nano-sized light-scattering fillers such as earth oxides, oxides or sulfides. The refractive index of the filler is in the range from 1.5 to 3.0. The particle size of the filler is in the range from 80 nm to 300 nm. The coating also contains nitrocellulose lacquer, acrylic acid or polyvinyl butyral film-forming agent, thinner or alcohol diluent, high color black liming agent and dispersing agent. The novel nano-coated high-definition rear-projection display screen has the advantages of adjustable high brightness within a large range, large view angle and ultra-high resolution. The functional nano-coating is not limited by the structure and size of the screen and particularly applicable to large-size screens, special-shaped screens and spliced screens.

There is provided an optical film including: a transparent support; an optically anisotropic layer on the outermost surface at one side of the transparent support; a hardcoat layer; and a low refractive index layer, wherein the hardcoat layer and the low refractive index layer are provided at the other side of the transparent support, the transparent support, the hardcoat layer, and the low refractive index layer contains an organic fine particles A having a specific particle size, an organic fine particles B having a specific particle size, and a binder such that a refractive index of 1.20 to 1.40 and average film thickness of 50 to 120 nm, a content of the inorganic fine particles B is appropriately controlled, and arithmetic mean roughness Ra of the optical film surface at a side having the low refractive index layer is a specific value.

The invention discloses a beef quality intelligent grading system and method based on machine vision. The system comprises a beef carcass placing platform, a camera obscura with a camera and a beef quality grading module, wherein the camera in the camera obscura is used as a collection device of the beef carcass information for collecting image signals of a beef carcass to be detected on the beef carcass holding platform; the output of the camera is connected with the beef quality grading module; and the output of the beef quality grading module is used as the output beef grading information of the beef quality intelligent grading system based on the machine vision. In the invention, a digital image processing technique is utilized to carry out relevant required processing on the collected cross section image of the beef carcass; three indexes, such as marbling, fat color and red beef color in an effective musculus ocularis area are utilized for analyzing, thus the whole beef carcass can be graded effectively, the shortage of misjudgement of the traditional beef grading system in which a single index is used can be overcome, and the accuracy and the objectivity of grading can be greatly improved.

The invention relates to an ultrasonic oval vibrating mechanism for assisting a diamond cutter in ultra-precision cutting. The ultrasonic oval vibrating mechanism is characterized by comprising a cutter handle, a vibrating unit and a cutter, wherein one end of the cutter handle has a step-shaped structure; the vertical surfaces and the horizontal surfaces of an upper layer step and a lower layer step are provided with grooves; the vibrating unit comprises a vibrating body consisting of a transverse vibrating rod and a longitudinal vibrating rod which are vertical to each other; the top surface of the joint of the transverse vibrating rod and the longitudinal vibrating rod is provided with a groove; the end part of the transverse vibrating rod is provided with a transverse end face; the other side of the transverse end face is provided with a transverse excitation source and a transverse cover plate in sequence; the end part of the longitudinal vibrating rod is provided with a longitudinal end face; the other side of the longitudinal end face is provided with a longitudinal excitation source and a longitudinal cover plate in sequence; the transverse end face is formed on the vertical surface of the upper layer step of the cutter handle; the transverse cover plate and the transverse excitation source are positioned in the groove of the upper layer step; the longitudinal end faceis formed on the horizontal surface of the lower layer step of the cutter handle; the longitudinal cover plate and the longitudinal excitation source are positioned in the groove of the lower layer step; and the cutter is arranged in the groove at the joint of the transverse vibrating rod and the longitudinal vibrating rod.

The invention relates to a no-reflection high-efficient-luminescence unitary-WLED power-capacity-expansion high-power light source. A plurality of blue-light BLED chips are welded on a radiating base plate. The surfaces of the BLED chips are coated with silica gel phosphor powder, which forms white-light WLED illuminants. The high-light-transmittance and high-intensity industrial plastic PC is made into a thin isopachous hemisphere-shaped casing. The PC casing is filled with high-transparency silicon gel which has the same light transmittance as the PC, which forms a silica gel hemispherical lens. The silica gel lens is packaged above the phosphor powder along the centre to form the no-reflection and high-efficient-luminescence unitary WLED light source. A plurality of unitary WLED light sources are assembled to a high-power WLED light source by capacity expansion. The light source can be make into a street lamp, an emergency lighting lamp, a safety lighting lamp for mine roadway, a mine cap lamp, a safety lighting lamp for subway and airport, an indoor lighting lamp and other WLED lighting lamps. The invention has the advantages of scientifically reasonable structure, low production cost, good radiating property, low power consumption, high efficient luminescence, long service life and other advantages.

The present invention belongs to the field of screw display technology. The preparation process of plasticized fexible high-brightness nano projection display screen material uses main material, plastcizer, nano powder brightnessing agent and initiator as material and includes mixing the main material and nano powder, adding brightneing agent and initiator at certain temperature for polymerization, filling the initiated polymerizing material into some mold, fast heating for violent polymerization, cooling in the reactor and demolding. The projection display screen material is flexible and windable and has high brightness, high resolution, high color fidelity and many other advantages and thus wide application foreground.

A face imaging device capable of imaging a face from plural directions under the same imaging condition, capable of illuminating the face at uniform brightness and capable of obtaining a clear image without causing halation in the image. A face imaging device has an illumination light source (L) provided in a housing (2) in the front of which an opening (6) for inserting a face (3) as the imaging object is formed; a light diffusion plate (7) for diffusing illumination light to illuminate the front side of the face (3) and provided between the opening and the illumination light source (L); an imaging camera (4) provided behind the light diffusion plate (7); a head section supporting member (9) whose position is adjustable in forward-backward and left-right directions and against which a head top side non-observation region of the face (3) is pressed to restrict the position of a head section; a chin placement base (10) for restricting the position of the chin depending on an imaging direction such that the front of the face (3) and left and right cheeks face straight toward the imaging camera (4); and a light shielding body (15) between the illumination light (L) and the imaging camera (4).

The invention discloses a low glossiness nonreflecting soft-touch effect automobile interior material and a preparation method thereof. The low glossiness nonreflecting soft-touch effect automobile interior material is prepared from the following raw materials of, in parts by weight, 15-40 parts of high-strength and high-melt-index co-polypropylene, 20-30 parts of carbon fiber, 30-40 parts of thermoplastic elastomers, 5-10 parts of mica powder, 2-5 parts of maleic anhydride grafted polypropylene, 0.1-0.5 part of an antioxidant, 0.5-1.5 parts of anti-glass fiber exposure agents and 0.1-0.5 partof a lubricating agent. The automobile interior material has low glossiness, non-reflection, soft touch effect, low smell and low VOC.

The invention relates to the technical field of electrotechnics and electronics, discloses a diagnostic method for the mechanical fault of a circuit breaker and a device for the mechanical fault of the circuit breaker, and aims at solving the technical problem that the diagnosis on the mechanical fault of the circuit breaker is not accurate enough in the prior art. The method comprises the following steps of detecting and obtaining the current waveform of a circuit where an electromagnet coil of the circuit breaker is located in the case of operating the circuit breaker; extracting first characteristic parameters of the circuit breaker from the current waveform, wherein the first characteristic parameters comprise five characteristic moments and four current amplitude parameters; based on a corresponding relationship between the characteristic parameters and mechanical states, determining a first mechanical state, which corresponds to the first characteristic parameters, of the circuit breaker, wherein the first mechanical state represents a mechanical fault state of the circuit breaker. By applying the method and the device, the technical effect that the diagnosis on the mechanical fault of the circuit breaker is more accurate and more convenient is realized.

The invention provides a PCB (printed circuit board). The PCB comprises a first reference layer, a first dielectric layer and at least one signal transmission link, wherein the corresponding signal transmission link is mounted on the first side of the first dielectric layer; the first reference layer is mounted on the second side of the first dielectric layer; each signal transmission link comprises two transmission lines and an alternating current (AC) coupling capacitor module, wherein the two transmission lines are connected through the AC coupling capacitor module; at least one impedance hole is formed in the first reference layer; the at least one impendence hole is in one-to-one correspondence with the corresponding AC coupling capacitor modules in the at least one signal transmission link; different impedance holes are not connected; and the open pore region of each impedance hole in the first reference layer comprises a projection region which is formed by the projection of the AC coupling capacitor module corresponding to the current impedance hole on the first reference layer in an orthographic projection manner. By adoption of the technical scheme, the signal completeness can be improved.

The invention discloses automatic equipment for detecting plate holes and slot positions of a furniture plate and a realization method thereof. The problem that the precision of detecting aperture, pore position, slot width and slot position of a plate by the prior technical means is not high is solved. The automatic equipment comprises an industrial personal computer and a detection executing system, wherein the detection executing system comprises a base provided with a bracket, a loading conveying table, a conveying device, an unloading conveying table, an optical fiber sensor, an optical imaging device and a light source emitting device; the loading conveying table, the conveying device and the unloading conveying table which are sequentially connected are arranged on the base; and the optical fiber sensor, the optical imaging device used for acquiring a plate surface image and the light source emitting device used for providing a light source to the optical imaging device are respectively connected with the bracket. The automatic equipment is reasonable in structural design, simple in flow and high in working efficiency, the plate holes and the slot positions of the furniture plate can be precisely detected, the labor cost is greatly reduced, and the yield of the plate is greatly improved. Therefore, the automatic equipment has very high application value and popularization value; and compared with the prior art, the automatic equipment has the advantages of outstanding practical characteristics and obvious improvement.

A posture monitoring system is suitable for being worn by a user. The posture monitoring system comprises a plurality of posture measuring units, a prompt unit and an information processing unit. The prompt unit comprises at least one earphone suitable for being worn, prompt signals comprise voice signals, and a signal input end of the earphone is connected with a signal output end of the information processing unit. When a body posture of the user wearing the posture monitoring system tilts, the information processing unit controls the earphone to send the voice signals to prompt the user to adjust the body posture. The voice signals of the earphone is controlled by the information processing unit and changes along with the tilt angles of the user. By means of the posture monitoring system, the user can adjust postures timely and accurately according to information provided by the system, reliability is good, and universality is high.

The invention relates to a dust-free colored magnetic powder writing blackboard, which comprises a magnetic blackboard, colored magnetic powder, a colored powder writing pen and a magnetic powder wiper, wherein a uniform magnetic field is arranged on the surface of the magnetic blackboard; the colored magnetic powder consists of three basic colors, namely red, green and blue as well as white; a rolling ball is arranged in the colored powder writing pen; a baffle and a spring are arranged behind the rolling ball; and the rolling ball is produced by attaching a micro steel ball to the spherical surface of a large steel ball. The invention has the beneficial effects of no raise dust, distinct handwriting, smoothness for writing, little effort for wiping and no reflection for board surface; the magnetic powder can be reused, permanent benefits by one-time investment are realized; and the dust-free colored magnetic powder writing blackboard has all advantages of a traditional blackboard; and meanwhile, all defects of the traditional blackboard are overcome.

A vertical alignment (VA)-mode liquid crystal display unit comprising, arranged in layers in the order mentioned, a low-refractive-index layer, an output-side polarizer, at least one sheet of biaxial optical anisotropy, a liquid crystal cell and an input-side polarizer, wherein (1) nx>ny>nz is satisfied (nx, ny: in-plane main refractive index of the whole optical anisotropy, nz: thickness-direction main refractive index), (2) the low-refractive-index layer consists of aero-gel with a refractive index of up to 1.37, and (3), when no voltage is applied with the biaxial optical anisotropy and the liquid crystal cell stacked by excluding the output-side polarizer and the input-side polarizer, retardation R0 when a light with a wavelength of 550nm is incident from a normal direction and retardation R40 when a light with a wavelength of 550nm is incident from a direction of a polar angle of 40 degrees satisfy the relation | R40 - R0 | = 35 nm.

The invention discloses a smectic state liquid crystal color display, which comprises a first substrate layer and a second substrate layer, wherein a mixed layer is arranged between the first substrate layer and the second substrate layer and formed by mixing smectic state liquid crystal and an additive; a first conductive electrode layer is arranged on one side, facing the mixed layer, of the first substrate layer; a second conductive electrode layer is arranged on one side, facing the mixed layer, of the second substrate layer; and a color film layer is arranged on one of the sides of the first conductive electrode layer or the second conductive electrode layer. The smectic state liquid crystal color display can perform simultaneous all-color image display on two surfaces, and is wide in visual range, high in contrast, good in display effect, lightweight, environment-friendly, and radiationless.

The invention provides an intelligent complex shuttle control analysis system, which comprises an experimental box body and is characterized in that the experimental box body comprises a first chamber, a second chamber, an electric net and a feces and urine box, and the first chamber and the second chamber are isolated from each other through a movable baffle; two control boxes are installed on the experimental box body, two web digital cameras are respectively installed in the control boxes and are used for collecting the information of the internal parts of the first chamber and the second chamber; each control box additionally comprises an adapter interface for a mobile terminal and a desk-type terminal, and the interfaces are used for transmitting experimental data and control signals between the control boxes and multiple platforms / multiple terminals; and a relevant extension system is also provided. By adopting an image monitoring system, the activities of experimental animals can be accurately judged and the done experiments are convenient to trace; the problems of poor electric grid contact and high installation expenses existing in a long term are solved, the situation of light reflection is not caused by adopting a sand blast design for metal bars and the quality of images is ensured; and by adopting a method of combining a section frame with a plate plane, the assembling and the disassembly are facilitated.

The invention discloses an oxide thin film transistor (TFT), a manufacturing method, an array substrate and a display device. The oxide TFT, the manufacturing method, the array substrate and the display device are used for preventing lateral leakage light or exposure reflected light or external light from being reflected on a source layer interface and a drain layer interface, thereby reducing the influences of the light on an oxide active layer and improving the performance and dependability of the oxide TFT. The oxide TFT comprises a substrate, a gate, a gate insulation layer, a source layer and a drain layer, wherein the gate, the gate insulation layer, the source layer and the drain layer are formed on the substrate in sequence. The oxide TFT is characterized by further comprising shading layers between the gate insulation layer and the source layer and between the gate insulation layer and the drain layer.

The invention discloses a structure of an on-line appearance detector and a detection method thereof. The structure of the detector comprises a base, a complete machine frame, an upper cover plate and a side cover plate. A shading plate and a handle are installed on the side cover plate. The inner side of the base is provided with a light source, the light source is installed in a diffusion cover, a Y-axis screw rod is installed on the base, a screw rod mounting base is arranged on the Y-axis screw rod, a Z-axis rod is fixed to the screw rod mounting base and connected with a movable frame, a camera is fixed to the movable frame, and a support is further installed on the base. A method of detection by the detector comprises the steps of installing the detector above a to-be-measured workpiece; causing a computer to automatically start after electrification, and manually opening detection software; opening a light source, using a camera to take a picture, and adjusting shade of the light source and the position of the camera; taking the camera to shoot a whole picture of the to-be-measured workpiece, using software to calculate and analyze whether the to-be-measured workpiece is qualified, pointing out a defect position, and recording the pass rate. The structure of the on-line appearance detector is good in matching effect, manual errors are reduced, and product yield and efficiency are improved.

The invention disclose a high speed streamline aided injecting nozzle, comprising nozzle 1 and circle sleeving 2, which contains a first segment I, a second segment II and a third segment whose bore is taper. The bores of the first segment I and the second segment II are cylinder. Taper guide pipeline 3 is set in the first segment I. said bore walls of the third segment III, the second segment II and guide pipeline 3, which are seamless, are connected orderly, and the bore walls of the first segment I, the second segment and guide pipeline 3, which are seamless, are connected orderly. The invention is provided with favorable jetting for air flow, no air flow reflection and disorder phenomenon.

The invention provides a high-grade intelligent scene fear analysis system, which comprises an experiment box body, wherein the experiment box body comprises an electric network and a excrement box, the electric network is positioned at the bottom of the experiment box body, the excrement box is positioned under the experiment box body, the electric network comprises a circuit and a metal rod, the metal rod is sheathed outside the circuit, a control box is arranged on a top cover of the experiment box body, a network digital camera is arranged inside the control box, the control box also comprises a mobile terminal and an adapting interface of a computer terminal, the interface is used for transmitting experiment data and control signals between multiple platforms and multiple terminals and the control box, and a corresponding expansion system is provided. The high-grade intelligent scene fear analysis system has the advantages that an image monitoring system is adopted, the behavior of experiment animals is accurately judged, and in addition, the made experiments can be conveniently traced; the drawer type electric network is convenient to dismount and wash, and in addition, the problem of poor contact of the electric network and time waste during the installation are solved; the metal rod adopts the sand blasting design, so the reflection cannot be caused, and the image quality is ensured; and a mode of combining a sectional material framework and a plate material plane is adopted, so the assembly and the dismounting are convenient.

The invention discloses a camera structure and a production method thereof, and electronic equipment, relates to the technical field of electronic equipment, and can eliminate the influence of reflection of a camera on vision of a photographed person under strong light. The camera structure comprises a shell and at least one camera arranged in the shell; transparent glass is arranged on the shell at the position corresponding to the camera; a one-way perspective film is arranged on one surface of the transparent glass away from the camera; and the one-way perspective film comprises a reflecting surface, and the reflecting surface is away from the camera. The camera structure provided by the invention is applied to taking photos.

The invention discloses a smectic state liquid crystal dyeing color display device which comprises a first substrate layer and a second substrate layer, wherein a mixing layer is arranged between the first substrate layer and the second substrate layer; the mixing layer is formed by mixing smectic state liquid crystal, additive and dichroic dye; a first conductive electrode layer is arranged at one side of the first substrate layer towards the mixing layer; a second conductive electrode layer is arranged at one side of the second substrate layer towards the mixing layer; a color film layer is arranged at one side of the first conductive electrode layer or one side of the second conductive electrode layer; the dichroic dye is black; and a backlight source is arranged at one side of the second substrate layer towards outside. The smectic state liquid crystal dyeing color display device adopts the image-forming principles of ways of scattering and transmission so as to realize the effect of all-color image display.

The invention discloses a collimated beam apparatus which comprises a box body, at least two partition plates, a lamp tube support and an ultraviolet lamp, wherein the box body is of a sealed structure and the bottom of the box body is provided with a reaction surface; the partition plates are arranged in the box body at intervals and are parallel to the reaction surface; light passing holes are formed in the partition plates; the hole centers of the light passing holes in the partition plates are vertically arranged; light absorption coatings are arranged at the peripheries of the light passing holes in the partition plates; the lamp tube support is arranged at the top of the box body and is used for supporting the ultraviolet lamp; and the ultraviolet lamp has a certain distance from thepartition plate at the uppermost layer and is arranged along the diameters of the light passing holes. Inclined UV light is completely prevented through the multiple layers of partition plates, onlythe light which passes through the light passing holes and is perpendicular to the light passing holes is left, and the light absorption coatings on the layers of partition plates can absorb the UV light scattered to the peripheries of the light passing holes, so that the collimated beam apparatus has the advantages of high beam parallelism, high illumination intensity and the like, and is particularly suitable for an ultraviolet light reaction device capable of accurately quantifying the irradiation dose.

The invention provides a composition of crystal clear agents for automobiles. The composition of the crystal clear agents for the automobiles is prepared with the following raw materials according to the following weight ratio: 10-20 of dodecyl sulfonic acid triethanolamine, 25-35 of oleic acid, 300-400 of white oil, 20-30 of diatomite powder, 15-25 of polyethylene glycol and 900-1,000 of water. In a preparation process, the dodecyl sulfonic acid triethanolamine and the polyethylene glycol are added into a reaction kettle containing the water and then stirred uniformly to obtain a mixture I, the oleic acid and the white oil are added into another reaction kettle and then stirred uniformly to obtain a mixture II, then the mixture I and the mixture II are mixed and stirred continuously, the diatomite powder is added, stirred sufficiently and mixed uniformly, and then the composition of the crystal clear agents for the automobiles is ready. The composition of the crystal clear agents for the automobiles is reasonable in design and suitable for being used for cleaning shells of the automobiles; not only can oil stains be removed, but also surfaces of the shells can be clean and shiny as new shells; the composition of the crystal clear agents for the automobiles has comprehensive functions including cleaning, glazing and waxing; and no reflection phenomenon is caused.

The invention belongs to the technical field of wireless communication systems, and particularly relates to a Balun filter with a non-reflective balance port. The filter comprises a first port, a basic resonance unit, a second port and a third port, wherein the first port and the basic resonance unit are connected through a gap coupling structure. The basic resonance unit is connected with the second port and the third port through gap coupling structures. The Balun filter is characterized in that the Balun filter also comprises an isolation network; the isolation network isolates the second port and the third port, and can adjust the absorption intensity of the second port and the third port to stop-band frequency signals by adjusting the parameters of the isolation network, so that whenthe second port and the third port output signals, broadband non-reflection is realized. According to the invention, the broadband non-reflection performance of the output ports of the circuit is realized, and the two output ports have good isolation at the center frequency of the passband.

The invention provides an epitaxial wafer structure for flip LED chips and a making method thereof. The epitaxial wafer structure for flip LED chips comprises a support substrate, a lattice matching layer, a connecting dielectric layer, an N-type semiconductor layer, an active layer and a P-type semiconductor layer, all of which are formed sequentially, wherein the connecting dielectric layer is provided with periodically arranged columnar structures. The connecting dielectric layer provided with periodically arranged columnar structures exposes part of the lattice matching layer. The N-type semiconductor layer covers the connecting dielectric layer provided with periodically arranged columnar structures and the lattice matching layer. The epitaxial wafer structure and the making method thereof are conductive to increasing the internal quantum efficiency and the external quantum efficiency of flip LED chips.

The invention provides a substrate for an inversely installed LED chip and a manufacturing method thereof. The substrate includes a support substrate, a dielectric layer, and a crystal lattice matching layer in the same structure with an epitaxial layer crystal structure of the inversely installed LED chip, the dielectric layer and the crystal lattice matching layer are arranged on the support substrate, the crystal lattice matching layer is in a cylinder structure arranged in an array and is embedded in the dielectric layer, or, the dielectric layer is in a cylinder structure arranged in an array and is embedded in the crystal lattice matching layer. The crystal quality of the inversely installed LED chip is improved, namely, the internal quantum efficiency is improved, the reflection of light from the epitaxial layer to the substrate can be reduced, the transmission is increased, the luminous efficiency of the inversely installed LED chip is improved, namely, the external quantum efficiency is improved.

The invention provides a light-emitting device (100) for a motor vehicle. The light-emitting device comprises at least two light source assemblies. The light-emitting device (100) further comprises alight guide part (3). The light guide part (3) comprises a straight line section and an intersection section intersecting with the straight line section. A dichroic film (35) is arranged in the lightguide part (3). The dichroic film (35) is arranged in the mode that lights coming from the first light source assembly (1) can transmit through the dichroic film (35) and lights which are different from the lights coming from the first light source assembly (1) and come from the second light source assembly (2) can be reflected on the dichroic film (35). The light-emitting device for the motor vehicle integrates two functions, in addition, the light losses are low, and the light emitting efficiency is high.

The present invention belongs to the field of screw display technology. The preparation process of plasticized fexible high-brightness nano projection display screen material uses main material, plastcizer, nano powder brightnessing agent and initiator as material and includes mixing the main material and nano powder, adding brightneing agent and initiator at certain temperature for polymerization, filling the initiated polymerizing material into some mold, fast heating for violent polymerization, cooling in the reactor and demolding. The projection display screen material is flexible and windable and has high brightness, high resolution, high color fidelity and many other advantages and thus wide application foreground.

The invention discloses a fireproof heat preservation curtain wall and a manufacturing method thereof. The fireproof heat preservation curtain wall comprises a curtain wall layer (1), a curtain wall core block (2) and a connecting piece (3). The curtain wall layer (1) is fixed into an outer fireproof layer (4) of the curtain wall core block (2), and the curtain wall core block (2) is fixed to a wall body through the connecting piece (3). The manufacturing method comprises the steps that a prefabricated part of the outer fireproof layer (4) is prepared; a prefabricated part of a first heat preservation layer (6) is prepared, and a second heat preservation layer (7) is prepared; an inner fireproof layer (5) is prepared; sequential installation is conducted; the fireproof heat preservation curtain wall is installed on the wall body through the connecting piece (3); a groove (8) formed in the prefabricated part of the outer fireproof layer (4) is internally provided with an automatic spraying device (9), and finally the groove (8) is covered with a protection film (10). Environment-friendly fireproof heat preservation materials are adopted in the fireproof heat preservation curtain wall, the dual functions of fire prevention and heat preservation are achieved, and the resource is saved. The manufacturing method is simple in technology, and the manner is rapid.