73results about How to "Reduce the difficulty of crafting" patented technology

The invention provides a non-linear taper inverted cone coupler structure which comprises a silicon substrate, a buried oxide layer and a top layer silicon. The buried oxide layer is prepared on the substrate, the material of the buried oxide layer is silicon dioxide, the top layer silicon is prepared on the buried oxide layer and can effectively prevent light from leaking in the substrate, one end of the top layer silicon is a bar-shaped waveguide and the other end is an inverted cone coupler, the inverted cone coupler is in a gradient exponential type or quadratic type structure, the operating wavelength of the inverted cone coupler is 1500nm to 1600nm, and the fluctuation of insertion loss is less than 0.3dB.

The invention discloses an embedded touch screen and a display device. With a bottom emission organic electroluminescence pixel structure, a self-capacitance electrode is arranged between a pixel unit and a lower substrate; a lead is arranged between the lower substrate and the organic electroluminescence pixel structure, so electric connection between the lead and a touch control electrode can be achieved without the organic electroluminescence pixel structure; technology manufacturing difficulty can be reduced; and production cost can be lowered.

The invention discloses a preparation method of a sintering neodymium iron boron sheet magnet. The preparation method comprises the following steps of manufacturing a sintering neodymium iron boron blank into a sheet blank with thickness of 0.4 to 1.0mm by a mechanical processing technology; when grains at the surface layer of the sheet blank are damaged, cleaning and drying the surface of the sheet blank, packaging a black sheet by a metal bag or metal foil paper, putting into a vacuum sintering furnace, and performing heat treatment under a vacuum state; then, performing vibration, grinding and chamfering, and pickling surface activation. The preparation method has the advantages that excessive noble elements, such as cobalt, dysprosium and terbium, do not need to be added, so that the material cost of a component is hardly increased; the size critical point of the component thinning corresponding to the size fining of the grains is avoided; the cost is lower, the difficulty in technology manufacturing is little, and the degrading of anti-magnetic decay ability caused by damage to the surface grains is relieved.

The invention belongs to the field of micromechanical gyroscopes and in particular relates to a four-mass block micromechanical gyroscope capable of being directly coupled in an angular rate sensitive direction. The four-mass block micromechanical gyroscope comprises four mass blocks of the same structure, two driving coupling beams on the outer side, two groups of central coupling beams and a detection coupling beam. Drive frames of the four mass blocks are connected by virtue of the two driving coupling beams on the outer side and the two groups of central coupling beams so as to realize direct coupling in the driving direction. Detection frames of the four mass blocks are connected by virtue of the detection coupling beam so as to realize direct coupling in the angular rate sensitive direction. The four-mass block micromechanical gyroscope structure is in a holohedral symmetry manner along the drive and detection directions. According to the four-mass block micromechanical gyroscope disclosed by the invention, an outside vibration signal can be decomposed into two components along the drive direction and the detection direction, while the output signal of the detection frame of the four mass blocks can eliminate the influences of the two components by virtue of a difference method, so that the influence of external vibration on the micromechanical gyroscope is eliminated.

The invention discloses an amplifier structure. The amplifier structure comprises an LD array, a pump light source coupling system, a laser gain medium and a seed light source. The amplifier structure is characterized by further comprising a polarizing device and N right angle reflection prisms, wherein N is equal to or greater than 1. The polarizing device is disposed between the seed light source and the laser gain medium; the seed light output by the seed light source passes through the polarizing device, then enters the laser gain medium and is reflected through the laser gain medium; and the right angle reflection prism is disposed on a reflection light path of the seed light reflected by the laser gain medium. By using the scheme provided by the invention, the amplifier structure can enable the seed light to pass through the laser gain medium for multiple times so as to extract a majority of energy and realize effective amplification; and the other advantages are as followings: the structure is reasonable and simple, the energy extraction rate of the laser gain medium can be improved, the process manufacturing difficulty can be reduced, the adjustment is easy, miniaturization and thinning are easy, and the like.

The invention discloses an electric wheelchair. The electric wheelchair is characterized by comprising a walk base and a seat. The walk base comprises a front wheel supporting frame, a rear wheel supporting frame, a driving wheel device and a storage device. The driving wheel device comprises a controller, a driving motor and a driving wheel. The front wheel supporting frame comprises a supporting pipe, a connecting pillar, a first front wheel installation plate, a first supporting plate, a second supporting plate and a second front wheel installation plate, wherein the first front wheel installation plate, the first supporting plate, the second supporting plate and the second front wheel installation plate are sequentially arranged from left to right, the connecting pillar penetrates through a first installation hole in the first supporting plate and a second installation hole in the second supporting plate and is fixed to the first supporting plate and the second supporting plate, and the two ends of the connecting pillar are fixed to the first front wheel installation plate and the second front wheel installation plate respectively. Fixed connection of the first front wheel installation plate, the first supporting plate, the second supporting plate and the second front wheel installation plate is realized through the connecting pillar, the structure of the product is simplified, the manufacturing difficulty of the process is reduced, and more importantly, the weight is largely reduced while the strength of the front wheel supporting frame is guaranteed.

The invention discloses a toothbrush allowing convenient toothpaste squeezing. The toothbrush allowing convenient toothpaste squeezing comprises a brush head and a brush handle; a slot is formed in the brush handle; the length of the slot is from 3 to 5 cm; the slot which is formed in the lower portion of the brush handle is in a rectangular shape. The toothbrush allowing convenient toothpaste squeezing has the advantages of enabling toothpaste to be rapidly squeezed, rapidly squeezing remaining toothpaste in a toothpaste casing due to the acting force of the toothbrush handle, being free of residual basically and simple and labor saving in operation, not needing squeezing manually and being simple in structure, small in process manufacturing difficulty and wide in application range.

The invention discloses a linkage type telescopic pedal of a railway vehicle overturning plate pedal. The linkage type telescopic pedal comprises a fixed pedal assembly. The fixed pedal assembly is provided with a surrounding plate and a fixed pedal fixed in the surrounding plate. A framework composed of two side plates and one bottom plate is fixed to the lower portion of the surrounding plate, the two side plates are provided with crossing pedal rotating shafts through bearings, pedal rotating arms are fixed to the two ends of the pedal rotating shafts respectively, pedal side frames are hinged to the ends of the pedal rotating arms, a horizontal movable pedal is fixed between the pedal side frames in a crossing mode, supporting blocks provided with sliding grooves are fixed to the side plates, and the pedal side frames are arranged in the sliding grooves and can slide. Rocker arms are fixed to the pedal rotating shafts, pull rods are hinged to the ends of the rocker arms, and overturning plate rotating arms fixedly connected with overturning plate rotating shafts are hinged to the upper ends of the pull rods. Linage of an overturning plate and the pedal is achieved in a mechanical mode, related operation is simplified for a conductor, production cost is effectively reduced, components in a pedal for an original hinge door can serve as most components during production, and the technology manufacturing difficulty is lowered.

The invention discloses a thin film transistor, a preparation method thereof, an array substrate and a display device. The threshold voltage of the active layer is regulated by adding oxygen ions andhydrogen ions into the active layer prepared by metal oxide semiconductor materials. When preparing the thin film transistor, each sub-etching barrier layer is obtained by step-by-step deposition using a plasma enhanced chemical vapor deposition process so as to selectively incorporate oxygen ions and hydrogen ions into the metal oxide semiconductor material when each sub-etching barrier layer isdeposited. Thereby regulating the amount of oxygen ions incorporated into the metal oxide semiconductor material and the amount of hydrogen ions incorporated. In this way, the metal oxide semiconductor material can be doped with oxygen ions and hydrogen ions without increasing the additional doping process, so that the preparation difficulty of the process can be reduced and the preparation cost can be reduced.

The invention belongs to the circuit board processing field and relates to a preparation process of a plug-in type blind hole HDI board, wherein the plug-in type blind hole HDI board is composed of an outer-layer plate, an inner-layer plate with through holes and a remaining inner-layer plate without blind holes. The preparation process includes the following steps that: the outer-layer plate, the inner-layer plate with the through holes and the remaining inner-layer plate without blind holes are staked to each other sequentially and are laminated; portions of the outer-layer plate, which are corresponding to the through holes of the inner-layer plate, are drilled so as to form blind holes; and outer-layer electroless plating copper, full-board electroplating, outer-layer patterning, pattern electroplating, outer-layer alkaline etching, solder mask screen printing, character screen printing, surface treatment and subsequent processes are carried out. With the preparation process of the invention adopted, technical problems in depth control can be solved, and blind holes will not bring out open-circuiting or short-circuiting due to depth problems assuredly; and a situation that copper does not cover the bottoms of the holes can be avoided; plug-in blind hole manufacture can be completed through ordinary electroplating solutions; and the electroplating solutions are not needed to be injected to the holes to realize blind hole electroplating, and therefore, manufacture difficulties are lowered, and cost can be reduced.

The invention discloses an infrared focal plane array and an infrared thermal imaging system based on the infrared focal plane array, and belongs to the field of the infrared thermal imaging. The infrared focal plane array comprises a plurality of array units in periodical arrangement, each array unit comprises a substrate, an insulation support layer, a sub-wavelength grating structure and an infrared absorbing layer; the infrared thermal imaging system based on the infrared focal plane array comprises a wavelength conversion module, a read-out signal production module and an imaging displaymodule; a core element of the wavelength conversion module is the infrared focal plane array; the infrared radiation from a target is focused on the focal plane, the infrared image information of thetarget is converted into the temperature distribution information on the focal plane array; the read-out signal production module is used for producing linear polarization narrow-band near infrared ray and enabling the linear polarization narrow-band near infrared ray to enter the imaging display module after being reflected by the infrared focal plane array, thereby realizing target object visualization. The system disclosed by the invention realizes large-area array, high-pixel, low-cost and quick-response thermal imaging system design.

The invention discloses a preparation method of an N type heterojunction two-sided solar battery. The preparation method comprises the following steps of S1, providing an N type silicon wafer substrate; S2, performing two-sided texturing on the N type silicon wafer substrate; S3, forming an n+ lightly doped layer on the front surface of the N type silicon wafer substrate; S4, performing corrosionand cleaning on the back surface of the N type silicon wafer substrate; S5, forming a front surface intrinsic amorphous silicon layer and an N type doped amorphous silicon layer on the n+ lightly doped layer on the front surface of the N type silicon wafer substrate through a process step in sequence; S6, forming a back surface intrinsic amorphous silicon layer and a P type doped amorphous siliconlayer on the back surface of the N type silicon wafer substrate through a process step in sequence; S7, forming TCO thin films on the front surface and the back surface of the N type silicon wafer substrate; and S8, forming a positive electrode on the back surface of the N type silicon wafer substrate, and forming a negative electrode on the front surface thereof. By adoption of the method, a high surface passivation effect can be obtained, the problem that utilization of a window layer of a solar battery front surface is suppressed in the prior art can be solved, and the conversion efficiency of the battery can be improved.

A flexible tactile sensor and a tactile information detection method. The sensor is composed of a magnetic rubber working surface, an elastic interlayer, a magnetic sensitive array, a glass substrate and a signal processing circuit. The magnetic rubber working surface and the elastic interlayer can adapt to the surface shape of the target object through flexible deformation, and at the same time cause the spatial distribution of the magnetic field to change. Change, and then change the output current of each magneto-sensing unit in the magneto-sensing array. The quantitative relationship between the output current of each magnetic sensitive unit in the magnetic sensitive array and the deformation of the magnetic rubber can be calibrated by neural network technology, and the contact position, the spatial distribution of the contact force and the Tactile information such as the local shape of the target object. The flexible tactile sensor can be applied in the field of robot technology, and can be installed on the surface of the manipulator gripper or the finger surface of the robot finger to improve the reliability of the process of grasping and conveying, and can also be installed around the body of the mobile robot for use. to avoid obstacles.

The invention discloses a generator double-layer heterogeneous stator winding and a double-layer heterogeneous transposition method, wherein the number of poles of a stator winding is 2, each phase ofwinding is composed of two parallel branches, a stator winding is a double-layer stack winding, each coil of the double-layer stack winding is a short-range coil, both an upper coil edge and a lowercoil edge are arranged in each groove, each coil edge is composed of two rows of transposition strands transversely arranged, and each upper coil edge has eight more strands than the corresponding lower coil edge; all transposition strands at the ends of the upper and lower coil edges are connected through a binding thimble. The upper coil edges are of an insufficient 0 degree / 540 degree / 0 degreetransposition mode; the lower coil edges are of 0 degree / 540 degree / 0 degree and void transposition combination mode. The generator double-layer heterogeneous stator winding and the double-layer heterogeneous transposition method can provide greatly reduced added loss for strands in the stator winding.

The invention provides a hard circuit board of a flat type motor, which includes: epoxy layer, conducting layer, insulation layer, carbon film resistive layer; said carbon film resistive layer highness is greater than the hard circuit board thickness. Because carbon film resistive layer is designed located in same side of the flat type vibrating motor rotor coil, and is in middle of oscillator opposite and two coils, carbon film resistive layer highness is not limited by the hard circuit board, carbon film resistance with low resistance value can be used and manufacturing technique difficulty is reduced, is favorable for stability and large-scale production.

The invention discLoses an array substrate, a dispLay paneL and a dispLay device. Concave structures are arranged in aLL pixeL opening regions, the concave structures are arranged between a substratebody and a coLor ring resistance Layer, the orthographic projections of the concave structures on the substrate body overLap the orthographic projections of the pixeL opening regions where the concavestructures are Located on the substrate body so as to fiLL the concave structures with the coLor ring resistance Layer, and the segment difference between the coLor ring resistance Layer and a sourcedrain eLectrode Layer is reduced, so that after a fLattening Layer is prepared on the coLor ring resistance Layer, the fiLm thickness of the fLattening Layer is more uniform, the fLattening effect ofthe fLattening Layer is improved, the production quaLity can be improved, and the process preparing difficuLty can be reduced.

The invention discloses a naked eye 3D display panel, a driving method thereof and a display device, wherein an electric control light refracting part is arranged at the light emitting side of the 2Ddisplay panel, and the electric control light refracting part comprises a first transparent driving electrode layer, a dielectric elastomer material layer and a second transparent driving electrode layer, wherein the first transparent driving electrode layer, the dielectric elastomer material layer and the second transparent driving electrode layer are arranged in a stacked mode; a first transparent driving electrode corresponds to a first type pixel unit, and a second transparent driving electrode corresponds to a second type pixel unit. When the naked eye 3D display panel is driven, voltagecan be applied to the second transparent driving electrode layer, and voltage different from that of the second transparent driving electrode layer can be applied to each first type transparent driving electrode and each second type transparent driving electrode, so that the dielectric elastomer material layer is deformed to form a lens structure, and the naked eye 3D effect is further achieved. Compared with the prior art that the optical lens is integrated in the front of the display panel, the process preparation difficulty, the thickness and the calculation difficulty can be reduced.

The invention provides a trench gate MOSFET device with an electric field shielding structure, which comprises a substrate, a source electrode, a drain electrode, a gate trench, the electric field shielding structure, source electrode regions, a semiconductor region with a first conduction type, and one or more electric field shielding structures with a second conduction type positioned below the surface of the semiconductor region, the electric field shielding structures intersect with the side wall of the gate trench at an angle, and the source electrode regions are positioned on two sides or the periphery of the gate trench, and are divided into a plurality of source sub-regions by an electric field shielding structure. By arranging one or more electric field shielding structures intersecting with the side wall of the gate trench and reasonably arranging the arrangement mode of the electric field shielding structures, the cell size of the device can be effectively reduced, the channel density and the device conduction current density can be improved, the specific on-resistance of the device can be reduced, and the device conduction performance can be improved; meanwhile, the electric field shielding effect is enhanced, the electric field intensity in the gate oxide layer is reduced, and the long-term working stability and reliability of the device are improved.

The invention provides a grating structure. The grating structure includes: a substrate structure; and a grating layer which is of a periodic structure, the grating in each period serves as a sub-grating, wherein the multiple sub-gratings are arranged on one side of the substrate structure at intervals, each sub-grating is of a rectangular structure and is of an asymmetric structure, and the period of the grating structure is smaller than 1.5 times of the incident center wavelength. The polarization beam splitter solves the problem that the dispersion capabilities of + / -1- level diffraction light in different polarization states are different in the polarization beam splitter in the prior art.

The invention discloses an electrode leading-out method and a packaging method of a tantalum electrolytic capacitor. The electrode leading-out method comprises the following steps of S1, manufacturing an insulating protective layer outside an electrode body of the tantalum electrolytic capacitor; S2, exposing a cathode leading-out part at a cathode pre-leading-out part, and exposing a tantalum core leading-out end in an area where the tantalum core terminal is located; S3, respectively depositing metal layers on the exposed cathode leading-out part and the tantalum core leading-out end; and S4, respectively manufacturing external electrodes for surface mounting on the metal layer of the cathode leading-out part and the metal layer of the tantalum core leading-out end so as to respectively lead out the cathode and the anode. According to the method, the space utilization rate in a product is improved, the miniaturization and thinning of the product are facilitated, and meanwhile the electrical performance of the product can be improved.

The invention provides a pixel circuit which comprises a reference pixel circuit, a touch circuit and a switch. One end of the reference pixel circuit is connected with a direct-current high-voltage signal, and the other end of the reference pixel circuit is connected with a positive electrode of an electronic light-emitting component and the is connected with a negative electrode of the electronic light-emitting component and a direct-current low-voltage signal for driving or stopping light transmission of the electronic light-emitting component; the touch circuit is connected to a certain joint between the negative electrode of the electronic light-emitting component and the direct-current low-voltage signal through a switch and used for corresponding selecting the on-off state of the switch by judging whether the reference pixel circuit drives the electronic light-emitting component to emit light or not and determining whether working is performed or not. According to the pixel circuit, the touch function can be perfectly integrated, the requirement for the thickness and bending of an existing display panel is met, the technology manufacturing difficulty is lowered, and the requirement for purchasing the touch panel can be omitted.

The invention discloses a mobile phone antenna and a mobile phone. The mobile phone antenna comprises a metal frame connected with a flexible print circuit board. The flexible print circuit board comprises a first radiation unit, a second radiation unit, and a connection unit. The first radiation unit is provided with a tuning module. The second radiation unit is provided with signal feed points. The connection unit is connected with the first radiation unit and the second radiation unit. The signal feed points are used to introduce current into the second radiation unit. The second radiation unit is used to make current flow into the first radiation unit through the connection unit. The tuning module is used to receive the current, and modulate the current to a radiation signal in preset radiation frequency, and send the radiation signal in a wireless manner through the metal frame. Through the above structure, the metal frame of the mobile phone antenna has no breaking points, so that process manufacturing difficulty is reduced, and user experience is improved.

The invention relates to a zirconium-based anode-supported solid oxide battery without an isolating layer. The battery is characterized by sequentially comprising an anode layer, an electrolyte layer and a membrane-coated cathode layer, wherein the anode layer is made of a NiO and zirconium-based electrolyte mixed material, and the electrolyte layer is made of a zirconium-based electrolyte material; and the membrane-coated cathode layer is composed of a membrane-coated functional layer and a membrane-coated collector layer, the membrane is a full nano membrane with the thickness of 5-30 nm, the membrane is a Sr-based perovskite material or metal oxide, and a nano membrane coating structure is formed on the surface of the cathode layer by dipping the cathode layer in a precursor mixed solution of a coating material and calcining. According to the zirconium-based anode-supported solid oxide battery, the cerium oxide isolation layer between the electrolyte layer and the cathode layer is removed, so that a high-temperature sintering process is reduced; and the microstructure of the cathode material is optimized, the reaction between the cathode and the electrolyte is avoided, and the stability of the battery is improved.

The invention relates to a voltage-regulating winding structure of a splitting winding type on-load tap-changing transformer, belonging to the technical field of transformers. In a technical scheme, for a winding arrangement sequence, an iron core-inner voltage-regulating winding (1), an inner low-voltage winding (2), a high-voltage winding (3), an outer low-voltage winding (4) and an outer voltage-regulating winding (5) are sequentially arranged from inside to outside, wherein the inner voltage-regulating winding and the outer voltage-regulating winding are symmetrically distributed at two sides of the high-pressure winding by taking the high-voltage winding as a center; the inner voltage-regulating winding and the outer voltage-regulating winding are sequentially and serially arranged into the tail end of the high-voltage winding stage by stage; and when the inner voltage-regulating winding and the outer voltage-regulating winding are sequentially and serially arranged into the tailend of the high-voltage winding completely stage by stage, the high voltage of the transformer is of limit tapping. In the invention, each stage of voltage regulation is unnecessary to realize by bridging the inner and outer two voltage-regulating windings, and the inner and outer voltage-regulating windings are sequentially and serially arranged into the high-voltage winding stage by stage according to odd number and even number; and the number of lead-out conductor wires of the voltage-regulating windings is reduced by half, the occupied space is effectively reduced, the wire outgoing of the voltage-regulating windings is facilitated, the manufacturing difficulty in the process is reduced, and the safe reliability in production operation is increased.

The embodiment of the invention discloses a display and input device. The display and input device comprises a display panel comprising a display array composed of a plurality of display pixels; a fingerprint sensing module comprising a sensing array consisting of a plurality of photosensitive pixels. The fingerprint sensing stage comprises at least one frame of image display period, continuous refreshing is carried out for m times in one frame of image display period, and in each refreshing period, display pixels in a first display area emit the same color spectrum and illuminate the fingerprint; in two adjacent refreshing periods, the display pixels in the first display area emit different color spectrums; in the display period of one frame of image, the second display area displays thesame image content; in a frame of image display period, the fingerprint sensing module collects fingerprint images of different colors and is used for synthesizing a color fingerprint image or a multispectral fingerprint image. According to the embodiment of the invention, a high-sensitivity color fingerprint image can be obtained.

The invention discloses a total-synthesis low-loss single-mode optical fiber which comprises a fiber core layer, a first inner cladding layer, a second inner cladding layer and an outer cladding layerfrom inside to outside. The fiber core layer is a germanium-doped quartz glass layer, and the refractive index difference deltan1 of the fiber core layer relative to pure quartz glass is 0.300%-0.340%; the first inner cladding layer and the second inner cladding layer are both quartz glass layers doped with a fluorine element; the refractive index difference deltan2 of the first inner cladding relative to the pure quartz glass is -0.04%- -0.02%; the refractive index difference deltan3 of the second inner cladding relative to the pure quartz glass is -0.07%- -0.04%; the outer cladding is a micro-doped aluminum quartz cladding, and the refractive index difference deltan4 of the outer cladding relative to the pure quartz glass satisfies deltan1 > deltan4 > deltan2 > deltan3. The attenuationcoefficient of the optical fiber in the 1550 nm waveband is smaller than or equal to 0.180 db / km, the purpose of low loss attenuation is achieved, the manufacturing cost is low, and the process difficulty is low.

The invention discloses a self-balancing method for cooling water of a slag conveyor. A first water inflow pipe is arranged above the slag conveyor and provided with a first water inflow valve with the adjustable opening degree. The slag conveyor is provided with an overflow port. A slag water adjusting pond communicated with the overflow port is formed below the slag conveyor. A first conveying pipeline is arranged between the slag water adjusting pond and the slag conveyor. The self-balancing method for cooling water of the slag conveyor comprises the following steps: the consumption amount of the cooling water of the slag conveyor is counted, and the water supplementing amount of the slag conveyor is calculated according to the consumption amount; the opening degree of the first water inflow valve is set according to the water supplementing amount so that the water supplementing amount and the consumption amount of the slag conveyor can be balanced during normal running, and the level of water in the slag conveyor keeps at the overflow port; the first water inflow valve is opened; and slag water overflowing from the slag conveyor is collected by a slag water adjusting pond, and the slag water is conveyed back to the slag conveyor through the first conveying pipeline to be circulated. The method effectively prevents the level of water in the slag conveyor from being lowered, enhances the impact resistance of the slag conveyor, prolongs the service life of the slag conveyor and improves the safety and the reliability of the slag conveyor.

The invention relates to an adjustable-temperature inflatable cushion core and a manufacturing method thereof. The cushion core comprises a cushion body, an inflatable inner core and an airflow cold and warm temperature regulating device, wherein the cushion body consists of a surface layer and a bottom layer; the edges of the surface layer and the bottom layer are mutually bonded; the inflatableinner core consists of an inflatable flat layer and inflatable posts arranged at one side of the inflatable flat layer; the two adjacent inflatable posts are communicated through an air passage; eachof the inflatable post and the air passage is formed by projecting the inflatable flat layer to one side; one side, deviated from the inflatable post, of the inflatable flat layer is mutually bonded with the inner side of the bottom layer; the end part of one end, deviated from the inflatable flat layer, of the inflatable post is mutually boned with the inner side of the surface layer; an airflowcirculation cavity is formed among the bottom layer, the surface layer and the inflatable inner core; the side end of the cushion body is provided with an airflow inlet and an airflow outlet; the airflow cold and warm temperature regulating device is embedded in the airflow inlet; an inflatable opening communicated with the inflatable post or the air passage is formed in the cushion body. The adjustable-temperature inflatable cushion core has the advantages that the structure design of the cushion core is reasonable; the manufacturing is simple; the inflating use and the exhausting storage areconvenient; the hardness and the temperature of the cushion core can be flexibly regulated.

The invention, which belongs to the star sensor technology, particularly relates to an optical system for a high-precision miniaturization star sensor in an airborne environment. The optical system is composed of an optical window, an oscillating mirror, a secondary mirror group, a secondary mirror frame, and a primary mirror. The secondary mirror group is fixed in the secondary mirror frame. The secondary mirror group and the primary mirror form a small-view-field convergence imaging system based on a cassegrain two-mirror system; and the optical axis of the optical window is perpendicular to the optical axis of the small-view-field convergence imaging system. The oscillating mirror is arranged on the optical axis of the small-view-field convergence imaging system in an inclined mode and faces the optical window in an inclined mode. According to the invention, the size of the airborne star sensor can be reduced to be the half or less of the size of the existing star sensor in the prior art; the imaging can be guaranteed to be in a diffraction limit state; and requirements of miniaturization and high precision can be met simultaneously. Besides, the optical system has advantages of simple structure, high reliability, low process manufacturing difficulty, and low cost and can adapt to the airborne working environment well; and the system that can be popularized and applied easily has the great practical value.