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39results about How to "Increase the spread angle" patented technology

Device for controlling a relative rotation between two articulated elements and a deployable mechanical structure, particularly for a space vehicle, using at least one device of this type

To control a relative rotation between two elements (10, 12), such as flaps of a deployable mechanical structure, on a space vehicle, a torsion bar (16) is used made of a bistable shape memory alloy, heated over its whole length by heaters stuck on the bar and retained by hooping rings. A stop (22) restricts pivoting to the pre-set pivoting angle to be controlled. Excess pivoting of the torsion bar (16) is applied to a mechanical fuse (18), interposed between the bar and one (12) of the elements.
Owner:ALCATEL LUCENT SAS

Luminous device

A light-emitting device includes circuit board, light-emitting diode, preliminary reflecting material and diffused structure. The light-emitting diode is fixed on the circuit board and connects with the circuit board to provide the lamp-house. The preliminary reflecting material is fixed on the circuit board and there are several via holes on the preliminary reflecting material for the light emitting area of the light-emitting diode to protrude the preliminary reflecting material. There are several notches at the bottom of the diffused structure and the diffused structure is fixed on the circuit board by means of covering the light-emitting diode with notches. The diffused structure has a transparent matrix and several diffused particles. The abovementioned diffused particles disperse in the transparent matrix. The light-house provided by the light-emitting diode becomes more uniform after the diffusion process of the diffused structure.
Owner:AU OPTRONICS CORP

Complete mixing W type flame boiler combustion exhausted wind apparatus

A full-mixing overfire air device of a W-shaped flame boiler relates to an overfire air device of a boiler. The invention aims to solve the problems of the prior W-shaped flame boiler adopting overfire air nozzles in direct flow structure form, such as higher carbon content in fly ash resulting from the fact that the gas and pulverized coal in the jet flow of the conventional boiler are unlikely to be mixed with those between adjacent jet flows due to the poor lateral diffusion capacity. The higher carbon content in the ash can lower the heat efficiency of the boiler and increase coal consumption of power plants. One end of an outer air channel of the overfire air device is fixed on the outer side wall of an upper furnace at an overfire air nozzle, wherein the overfire air accounts for 25 to 30% of the total amount of air fed into the boiler. The overfire air is divided into two portions when entering the overfire air channel, one portion enters an inner air channel and is ejected to the furnace to achieve higher momentum, and the other portion enters the outer air channel to achieve higher rotation intensity, so that the two portions of the overfire air can achieve higher lateral diffusion capacity when entering the upper furnace and can be mixed with gas between two adjacent portions of the overfire air jet flow.
Owner:HARBIN INST OF TECH

Specially-shaped mixing holes for adjusting outlet temperature distribution of combustion chamber

ActiveCN112146127AIncrease the divergence angleExpand space coverageContinuous combustion chamberCombustion chamberEngineering
The invention discloses specially-shaped mixing holes for adjusting outlet temperature distribution of a combustion chamber, and belongs to the field of combustion of gas turbines. The specially-shaped mixing holes are formed in the inner ring wall surface and the outer ring wall surface of a flame tube of the combustion chamber correspondingly; the specially-shaped mixing holes divide the wall surface of the flame tube into a flame tube front section and a flame tube back section; the specially-shaped mixing holes are evenly distributed in the circumferential direction of the wall surface ofthe flame tube to form mixing jet flows evenly distributed in the circumferential direction, the penetration depth of the mixing jet flows is increased, the contact area of mixing cold air and high-temperature main stream gas is increased, the mixing effect is improved, and the outlet temperature distribution quality of the combustion chamber is improved; the effect of adjusting outlet temperaturedistribution of the combustion chamber is achieved by changing the jet flow penetration depths, the jet flow circumferential expansion angles and the jet flow directions of the mixing holes; and outlet temperature distribution of the combustion chamber is adjusted, so that the temperature quality of an inlet of a turbine is improved, the service life of the turbine is prolonged, and the heat-proof design difficulty of the turbine is reduced.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Extendable type tail apron mechanism

InactiveCN110230958ALarge pressure coefficientDecreased pressure coefficientSelf-propelled projectilesRocketFlange
The invention discloses an extendable type tail apron mechanism, and belongs to the technical field of aircrafts. The problems that when an existing guided missile or rocket carries out high-speed flying, along with Mach number increasing, the stability of the guided missile or rocket is poor are solved. The mechanism comprises a round inner frame body, a round outer frame body, an abut-joint flange, multiple power driving devices, multiple pairs of long rods, multiple short rods, multiple inner apron pieces, multiple outer apron pieces and multiple locking devices; multiple linear guide railsare evenly distributed on the outer circumference of the round inner frame body, the sliding blocks are evenly distributed on the inner circumference of the round outer frame body, each sliding blockand each linear guide rail are matched, through driving of the power driving devices, the round inner frame body moves along the axis of the round outer frame body, the abut-joint flange is fixedly connected to the round inner frame body and is arranged in a concentric manner, the inner apron pieces and the outer apron pieces are hinged to the abut-joint flange, and are spaced to form a tail apron, and the mechanism is suitable for hypersonic vehicles.
Owner:HARBIN INST OF TECH

Vehicle light module, vehicle light and vehicle

The invention provides a vehicle light module. The vehicle light module includes a plurality of light sources, a primary optical element, and a secondary optical element; the primary optical element includes a primary optical element body and a plurality of light incident portions, and the plurality of light sources correspond to the plurality of light incident portions in a one to one manner; theprimary optical element body includes a main reflection plate and edge reflection plates arranged on the left edge side and / or the right edge side of the main reflection plate; the plurality of lightincident portions have edge light incident portions on the left side and / or right side; at least a part of the light emitted from the edge light incident portions is reflected by the edge reflectionplates to the secondary optical element, and the remaining portion of the light is reflected by the main reflection plate to the secondary optical element, which increases the widening angle of the left side and / or right side of the vehicle light shape formed by the vehicle light module. Compared with the prior art, under the premise of achieving the same widening angle, the size of the primary optical element in the left-right direction provided by the application is smaller; therefore, the overall size and space occupation of the vehicle light module are reduced accordingly.
Owner:HASCO VISION TECHNOLOGY CO LTD

Light-emitting diode packaging structure

The invention discloses a light-emitting diode packaging structure comprising a shell, a light-emitting diode chip and a light-transmitting packaging part, wherein the shell is provided with a concave part and a plurality of projecting parts; the light-emitting diode chip is arranged in the concave part and covers the light-transmitting packaging part in the concave part; and the plurality of projecting parts are arranged in the concave part or at the edge of the shell. The light-emitting diode packaging structure enables the surface of the light-transmitting packaging part to be rugged through the plurality of projecting parts, thus increasing the diffusion angle of the light rays and improve the light producing efficiency of the light rays.
Owner:SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD

Vehicle lamp module, vehicle lamp and vehicle

The invention provides a vehicle lamp module. The vehicle lamp module comprises a plurality of light sources and a primary optical element, wherein the primary optical element comprises a primary optical element body and a plurality of light incident parts which are arranged at the rear end of the primary optical element body and are arranged left and right; the plurality of light sources are in one-to-one correspondence with the light incident parts; the left edge side and / or the right edge side of the primary optical element body is provided with an edge reflection part; the plurality of light incident parts are provided with edge light incident parts located on the left sides and / or the right sides; at least a part of light rays emitted from the edge light incident parts are reflected by the edge reflection part and then are emitted out from the primary optical element, so that a vehicle lamp light shape formed by the automobile lamp module on the left side and / or the broadened angle on the right side can be increased. Compared with the prior art, the size of the primary optical element in the application is relatively small in the left-right direction under the premise of reaching the same broadened angle. Therefore, the size of the primary optical element in the left-right direction can be reduced while the broadened angle is enlarged.
Owner:HASCO VISION TECHNOLOGY CO LTD

Wedge transverse rolling die capable of achieving forming of hollow blank without mandrel and rolling method

InactiveCN104525800AReduce torsional plastic deformationIncrease the amount of changeRollsMetal rolling arrangementsOvalitySharp point
The invention belongs to the technical field of metal plastic forming and particularly provides a wedge transverse rolling die capable of achieving forming of a hollow blank without a mandrel. The wedge transverse rolling die is provided with a body part and a forming part protruding out of the outer surface of the body part, wherein the forming part comprises a wedge sharp point, a wedging section and a widening section, the widening section comprises a first widening section body and a second widening section body, and the widening angle of the first widening section body is larger than that of the second widening section body. Due to the fact that the wedge transverse rolling die is used for the hollow blank without the mandrel, the ovality is slightly enlarged by emptying the top face of the die while the friction force and the torque which are borne by the rolled part at the corresponding position are reduced, so that torsion plastic deformation in the rolling process is reduced, and it is ensured that the rolled part is not twisted off. Due to the fact that the ovality and the oversize of the inner diameter of the wedging position in the rolling process without the mandrel are well improved, the dimension of the rolled blank is accurate, the inner wall is almost equal in inner diameter, and quality is high.
Owner:UNIV OF SCI & TECH BEIJING

Polycarbonate-substrate hard back-projection screen for edge blending

The invention discloses a polycarbonate-substrate hard back-projection screen for edge blending. The polycarbonate-substrate hard back-projection screen for edge blending is formed by processing raw materials of aromatic polycarbonate, light diffusant particles and transparent black masterbatch by means of the plastic extrusion process. The surface roughness of a roller utilized ranges from 10 micrometers to 100 micrometers, light diffusion factor FD is larger than or equal to 0.95. Compared with the prior art, the polycarbonate-substrate hard back-projection screen for edge blending has the advantages of simplicity in processing technique, convenience to transport, easiness to mount and the like, and more importantly, the light diffusant with + / -0.03 to + / -0.09 difference between the light refractive index and the substrate (aromatic polycarbonate) is utilized and usage thereof is determined, so that the optimum gain and a larger diffusion angle are achieved, and multiple projectors can work in edge blending manner and form a full-screen image without seams.
Owner:李澄 +2

Intelligent device for lumbar vertebra interspinous dilation

ActiveCN109965926AIncrease the spread angleDecrease the spread angleSurgeryDilatorLumbar vertebrae
The invention discloses an intelligent device for lumbar vertebra interspinous dilation. The intelligent device comprises a dilator body, a base, a universal arm and a telescopic mechanism. The dilator body comprises dilating jaws, a parallel expander and a handle; the base is provided with a supporting arm, and the telescopic mechanism is slidably connected to the supporting arm through the universal arm and comprises a screw rod, a screw rod sleeve, a speed reducer and a driver; the screw rod is rotationally connected in the screw rod sleeve, an extending end of the screw rod is hinged to one grip of the handle, and the screw rod sleeve is fixedly connected with the other handle of the handle; the driver and the screw rod sleeve are fixedly connected, the driver is in transmission connection with the screw rod through the speed reducer, and the driver rotates to enable the screw rod to extend and retract between the two grips so as to drive the dilating jaws to open and close. Accurate control of an interspinous dilation angle is realized, the intelligence degree is raised, manual operations are reduced, and probability of artificial damages is lowered.
Owner:刘新建

Complete mixing W type flame boiler combustion exhausted wind apparatus

A full-mixing overfire air device of a W-shaped flame boiler relates to an overfire air device of a boiler. The invention aims to solve the problems of the prior W-shaped flame boiler adopting overfire air nozzles in direct flow structure form, such as higher carbon content in fly ash resulting from the fact that the gas and pulverized coal in the jet flow of the conventional boiler are unlikely to be mixed with those between adjacent jet flows due to the poor lateral diffusion capacity. The higher carbon content in the ash can lower the heat efficiency of the boiler and increase coal consumption of power plants. One end of an outer air channel of the overfire air device is fixed on the outer side wall of an upper furnace at an overfire air nozzle, wherein the overfire air accounts for 25to 30% of the total amount of air fed into the boiler. The overfire air is divided into two portions when entering the overfire air channel, one portion enters an inner air channel and is ejected to the furnace to achieve higher momentum, and the other portion enters the outer air channel to achieve higher rotation intensity, so that the two portions of the overfire air can achieve higher lateraldiffusion capacity when entering the upper furnace and can be mixed with gas between two adjacent portions of the overfire air jet flow.
Owner:HARBIN INST OF TECH

Lens used for lighting device with arc-shaped lampshade and lighting device

The invention discloses a lens used for a lighting device with an arc-shaped lampshade. The lens comprises an annular lens body. Annular grooves for containing lamp beads are formed in the bottom face of the lens body. The inner walls of the annular grooves serve as first refraction surfaces. An annular convex second refraction surface is arranged on the upper surface of the lens body. Light emitted by the lamp beads sequentially passes through the first refraction surfaces and the second refraction surface and then is emitted out. The outer circle diameter of the lens body is smaller than or equal to 80 mm, and the beam angle of the lens body ranges from 150 degrees to 175 degrees. The invention further discloses the lighting device. The lens is applied to the lighting device with the arc-shaped lampshade. During application, the lamp beads are arranged in the annular grooves, the light emitted by the lamp beads is refracted through the first refraction surfaces and the second refraction surface of the lens body and then diffused, the diffusion angle of the light is increased, the outer circle diameter and the beam angle of the lens body are controlled, and it can be guaranteed that the brightness of the arc-shaped lampshade is evenly distributed on the basis that the production cost of the lighting device is reduced.
Owner:FOSHAN ELECTRICAL & LIGHTING

Backlight module and display device thereof

An embodiment of the invention provides a backlight module and a display device thereof and relates to the technical field of display. The backlight module and the display device are used for improving contrast of displayed pictures. The backlight module comprises a light source, an optical film and a light guide plate arranged between the light source and the optical film, the light guide plate comprises multiple protrusions arranged on one side close to the light source, the top of each protrusion is one end, close to the light source, of the protrusion, the top of each protrusion is provided with at least one hemispherical deboss, radius of each hemispherical deboss is smaller than a distance from the top face of the corresponding protrusion to the bottom face of the light guide plate, and the bottom face of the light guide plate is one side, away from the light source, of the light guide plate; the light source comprises multiple luminous elements which are arranged corresponding to the debosses, and the backlight module further comprises reflection portions arranged on the side surfaces of the protrusions. The backlight module is used in the display device.
Owner:XIAMEN TIANMA MICRO ELECTRONICS

Special-shaped mixing holes for adjusting the temperature distribution at the outlet of the combustion chamber

The invention discloses a special-shaped mixing hole for adjusting the outlet temperature distribution of a combustion chamber, which belongs to the field of gas turbine combustion; the invention is provided with special-shaped mixing holes on the inner and outer ring walls of the combustion chamber flame tube respectively; the special-shaped mixing hole will The wall surface of the flame tube is divided into the front section of the flame tube and the rear section of the flame tube; the special-shaped mixing holes are evenly distributed along the circumferential direction of the wall surface of the flame tube to form a uniformly distributed mixing jet in the circumferential direction and increase the penetration depth of the mixing air flow. Increase the contact area between the blended cold air and the high-temperature mainstream gas, improve the blending effect, and improve the temperature distribution quality of the combustion chamber outlet; by changing the jet penetration depth of the blending hole, the jet circumferential expansion angle and the jet direction, the combustion chamber can be adjusted The effect of outlet temperature distribution; by adjusting the outlet temperature distribution of the combustion chamber, the quality of the turbine inlet temperature is improved, thereby increasing the service life of the turbine and reducing the design difficulty of turbine heat protection.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

A lens and its manufacturing method for increasing the beam propagation, scattering and convergence angle

ActiveCN106908869BSolve the problem of insufficient launch angleIncrease the spread angleLensAngle of incidenceLight beam
The invention provides a lens and a manufacturing method for increasing the beam propagation, scattering, and convergence angles, including: a curved surface, one side of the curved surface is provided with several groups of concave-convex mirrors, each group of concave mirrors is connected with a convex mirror, and the curved surface There are several areas on one side, and a group of concave-convex mirrors are respectively provided. The radial height of the concave mirror in each group is greater than the radial height of the convex mirror. The present invention combines the principle of geometric projection to analyze the light beam when it is incident The change distribution of the incident angle of the surface simulates the high-order continuous curve of the incident longitudinal section to design a reasonable combination of "concave / convex lens"; through optical software simulation, the beam diffusion effect is verified, and the incident surface is continuously adjusted for optimization; after that Using PC as the material, an infrared light source with a wavelength of 960nm provides light beams, conduct experiments on the designed lens, and then optimize the design; finally, the FFT.Ken lens is proposed.
Owner:上海智觅智能科技有限公司

Direct type light-emitting device

The invention discloses a direct type light-emitting device. The direct type light-emitting device includes a plurality of LED light sources and a plurality of optical lenses coupled to and over the LED light sources. Each optical lens is provided with a hollow structure which is radially symmetrical to the optical axes of the light source and the optical lens. A micro diffusion structure is arranged on the outer surface of each optical lens. In the hollow structure, the included angle between the tangent plane of the surface near the optical axis and the optical axis is smaller than that between the tangent plane of the surface far away from the optical axis and the optical axis; the density of the micro diffusion structures near the optical axis is larger than that of the micro diffusion structures far away from the optical axis, so that light incident to the surface near the optical axis is reflected and redirected at a higher proportion, and a light field with uniform light intensity distribution is formed above the direct type light emitting device.
Owner:SHENZHEN LONGLI TECH CO LTD

Hologram making method and hologram made by the method

The invention provides a hologram fabrication process, characterized by comprising steps of fabricating a computer-generated hologram (CGH) having amplitude information and phase information recorded by computer operation on a given recording surface, irradiating the computer-generated hologram (CGH) with the first reconstructing illumination light (2) to generate the first diffracted light (3) from the computer-generated hologram (CGH) thereby reconstructing a first reconstruction image (O′), simultaneously entering the first diffracted light (3) and the first reference light (4) in a first-stage hologram recording material (11) faced away from the first reconstructed image to record a first-stage hologram (11) in it, irradiating the recorded first-stage hologram (11) with the second reconstructing illumination light (5) to generate the second diffracted light (6) from the first-stage hologram (11) thereby reconstructing the second reconstruction image (O″), and simultaneously entering the second diffracted light (6) and the second reference light (7) in a second-stage hologram recording material (21) located near the second reconstructed image (O″) to record the second-stage hologram (21) in it as a reflection or transmission type volume hologram.
Owner:DAI NIPPON PRINTING CO LTD

Composite optical system adopting double internal lenses

The invention provides a composite optical system adopting double internal lenses; the composite optical system comprises a light source I, a light source II, a reflection bowl, a transparent internallens and a wide light guide. The wide light guide serves as the function of an internal lens. Vertical stripes are arranged on the wide light guide. The transparent internal lens is arranged betweenthe wide light guide and the reflection bowl; transverse stripes are arranged on the transparent internal lens; the light source II is placed at the light inlet end of the wide light guide, so that one optical function is realized; the light source I is placed at the focal point of the reflection bowl, the light emitted by the light source I is converged through the paraboloid of the reflection bowl and is emitted in parallel to pass through the transverse stripes in the transparent internal lens to be subjected to diffusion of the first time; light penetrates through air to reach the wide light guide and passes through the vertical stripes on the rear surface to be subjected to diffusion of the second time; and next, the light is emitted, so that the other optical function of the multiplexing system is realized. The uniformity is ensured. The diffusion loss caused by depth is reduced, and meanwhile, the optical efficiency is improved and the diffusion angle of light is increased through the whole optical system.
Owner:MAGNETI MARELLI AUTOMOTIVE COMPONENTS WUHU

Light source plate, manufacturing method of backlight source, steel mesh and backlight module

PendingCN113126362AIncrease the light diffusion angleIncrease the spread angleNon-linear opticsLiquid crystalEngineering
The invention discloses a light source plate, which comprises a light source plate main body, a plurality of LEDs arranged on the light source plate main body at intervals and a light reflecting layer arranged above the LEDs, wherein the light reflecting layer comprises a plurality of light reflecting patterns arranged at intervals, and each LED corresponds to one light reflecting pattern. The reflective coating does not completely cover protective glue, and light reflection is increased, so that the effect that light is diffused farther and more evenly can be achieved on the premise that the distance between the backlight plate and a liquid crystal diffusion sheet is not adjusted or even shortened.
Owner:TCL CORPORATION

High angle deployment system for a seismic marine surface vessel

A high angle overboard system and method for the deployment of subsea equipment from a marine vessel. The overboard guide system deploys a deployment line from a surface vessel into a body of water at an angle alpha. The angle alpha may be at least 15 degrees and may be greater than 20, 25, 30, 45, or even 60 degrees or more during some or all portions of the subsea operations. The overboard system may be located near the splashzone of the surface vessel or a distance beneath a water surface. The overboard system may take any number of configurations, such as a cone shape, and / or may comprise a plurality of rollers or one or more sheaves. The overboard system allows a subsea device to be operated at higher deployment angles as compared to prior art subsea operations, such as with A-frame LARS systems.
Owner:SEABED GEOSOLUTIONS

Gushing arm assembly and household electrical water appliance

The invention discloses a gushing arm assembly and a household electrical water appliance. The gushing arm assembly (100) comprises a gushing arm (2) and a flow expanding structure, wherein a horizontal lateral spray hole (12) communicated with a gushing arm cavity is formed in the gushing arm (2), a lateral opening in the horizontal direction is formed in the horizontal lateral spray hole (12), and the flow expanding structure is arranged on a fluid path of fluid sprayed from the horizontal lateral spray hole (12) and used for enlarging diffusion angle of the sprayed fluid. According to the gushing arm assembly and the household electrical water appliance, the horizontal lateral spray hole is formed in the gushing arm assembly, sufficient hydraulic pressure in the gushing arm cavity can be guaranteed to ensure cleaning capacity of the sprayed fluid on tableware, furthermore, the flow expanding structure is arranged in the gushing arm assembly, so that the cleaning range of the sprayedfluid can be expanded, and the cleaning effect of the tableware is improved.
Owner:WUHU MIDEA SMART KITCHEN APPLIANCE MFG CO LTD
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