59results about How to "Satisfy the working environment" patented technology

The invention discloses an electronic expansion valve, which comprises an electrical control part and a mechanical part. The electrical control part comprises a bus signal reception / transmission module, a central processing module and a stepper motor driving module; wherein the bus signal reception / transmission module is used for receiving a bus control signal and transmitting the bus control signal to the central processing module; the central processing module is used for extracting valve opening information included in the bus control signal, generating a corresponding pulse control signalin combination with current position information of a stepper motor read from a data storage module, and outputting the pulse control signal to the stepper motor driving module; and the stepper motordriving module is used for driving the stepper motor to adjust the valve opening according to the pulse control signal. The invention also discloses a stepper motor and a reversing valve. The number of drive wires directly connected with a main control board can be reduced, the structure of the main control board can be simplified, and the manufacturing cost can be saved.

The invention relates to a network building method and device, a network connecting method and device, a router and a smart home appliance, provides a network building method and network building device for a router, a network connecting method and network connecting device for a smart home appliance, a router and a smart home appliance, wherein the network building method for the router comprises: recording the identification information of a networked appliance and generating a home appliance list; monitoring the networked states of the appliances in the home appliance list; sending distribution network information, after it is detected that the networked home appliances have been disconnected for a first time length, to inform offline appliances to join the network. The technical scheme of the invention can make the abnormal offline home appliances complete re-distribution network, or make the home appliance automatically get access to the new wireless network after the password of the wireless network is changed, realizes the automation of the appliance networking, and eliminates the cumbersome household appliances networking operation.

The invention discloses a crawler crane moment limiting system, which comprises a sensor part, a display part and a main control box which is connected between the sensor part and the display part. The main control box has a modular independent board structure. A main controller is arranged in the main control box; and a crane moment processing system is arranged in the main controller. The crane moment processing system can acquire an accurate limited moment of a crane and a protection signal according to a mathematical model and a load curve of the crane. Peripheral modules can be freely expanded by using the main controller as a core. Therefore, the aims of strong extensibility, flexible use, convenient installation and maintenance, good universality, high reliability and more accurate and safer control are fulfilled.

The present invention provides a desk with which flexibility of a change in the position of an optional member with respect to a base is increased, and by which the position of an optional member with respect to the base can be changed easily and accurately in accordance with the posture of a top board with respect to the base. A desk includes: a base extending in a predetermined direction; a top board capable of selecting a plurality of postures with respect to the base; an option supporting member supported so as to be movable along the base in accordance with the posture of the top board; and a panel system and a task light supported by the option supporting member.

The invention provides a deflecting fence type square heat exchanger with a waved tube. The heat exchanger comprises a case, a heat exchange tube, an upper tube plate and a lower tube plate, wherein the case, the upper tube plate and the lower tube plate form airtight space, an airtight upper head is arranged on the left side of the upper tube plate, an airtight lower head is arranged on the right side of the lower tube plate, a tube-side inlet is arranged on the upper head, a tube-side outlet is arranged on the lower head, the heat exchange tube is installed in the airtight space, two ends of the heat exchange tube are installed in the upper tube plate and the lower tube plate respectively and communicated with the upper head and the lower head respectively, a tube-side outlet tube is arranged on the right of the upper tube plate on the case, a tube-side inlet tube is arranged on the left of the lower tube plate, and a deflecting fence for supporting the heat exchange tube is mounted in the case and comprises a deflecting ring and a support rod installed in the deflecting ring. According to the heat exchanger, vortex flow and the Venturi effect can occur when shell pass fluid flows through the square deflecting fence, so that the shell pass fluid can obtain good turbulent current conditions, dead flow zones and leakage current losses when the fluid flows across tube bundles are reduced, and heat exchange on the shell side is strengthened.

The invention relates to a scanning type translation pen which comprises a pen body and an optical scanning head, wherein the optical scanning head is detachably connected with the pen body; the optical scanning head is in a concave shape; the optical scanning head comprises a scanning window and scanning triggering pins which are arranged on the left side and the right side of the scanning windowin a surrounding mode. A scanning translation circuit is arranged in the pen body and comprises a microprocessor and a scanning and identifying circuit, a wireless communication module, a voice broadcasting module, a writing display screen and a memory which are electrically connected with the microprocessor respectively, wherein the scanning and identifying circuit comprises pressure sensors, aninfrared scanning lamp, a photoelectric sensor and an optical character recognition and acquisition module, which are electrically connected with the microprocessor respectively. The pressure sensorsare arranged in the scanning triggering pins, and infrared scanning lamp is arranged in the scanning window. According to the technical scheme, the problem that the translation speed is low due to manual input in an electronic dictionary in the prior art can be solved.

A rack counterweight operation-type window-cleaning machine is provided, which belongs to the field of cleaning equipment. The machine comprises a portable window cleaner, a travelling wheel mechanism, an anti-turning device, a rail climbing device, a drag wire rope, a first guide rail, a rack, a guide pulley, a counterweight device and a second guide rail. The machine is characterized in that the weight of the counterweight device is designed to be equal to the self-weight of the portable window cleaner; and the rail climbing device engages with the rack to drive a pair of counterweights to reciprocate along the first and the second guide rails. The driving force is reduced according to the action of gravity of the counterweights, so that the window-cleaning machine can climb with small frictional force. The invention overcomes the climbing problem in the prior art and realizes energy conservation and safety improvement.

A network interconnecting device of locomotive based on embedded operation system consists of shell, CPU board, interface board, LCD display system, touch screen and IC card socket. It is featured as setting only one CPU board for finalizing IDD display and TCN network communication function on IDD unit, using two rectangular sockets to connect said CPU board and said interface board and embedding said IDD unit into Linux operation system for realizing real-time protocol packet function of embedded GUI and TNC.

The invention provides an optical imaging lens and imaging equipment, and the optical imaging lens comprises, in order from the object side to the image side, the following parts of a first lens having focal power, wherein the object side is convex, and the image side is concave; a second lens having negative focal power, wherein the object side is concave, and the image side is concave; a third lens having positive focal power, wherein the object side is convex, and the image side is convex; a fourth lens having positive focal power, wherein the object side is convex, and the image side is convex; a fifth lens having positive focal power, wherein the object side is convex, and the image side is convex; a sixth lens having negative focal power, wherein the object side is concave, the imageside is concave, and the fifth lens and the sixth lens constitutes a cemented body; a seventh lens having a negative focal power, wherein the object side is concex, and the image side is concave; anda diaphragm. The optical imaging lens provided by the invention has the characteristics of a large aperture, a long focal length, high resolution, and the like, and can meet the requirements of a small field of view and a high resolution lens in the automotive field.

The invention discloses a clamping head set in a transmission shaft driven by a power supply, comprising a body, a plurality of clamping jaws and a rear cover, a jacket rotatably covered outside of the body, and disposed in front of the rear cover, as well as a driving nut. The invention is characterized in that it also comprises: a drive pendulum support cover disposed between the jacket and the driving nut, connected with the jacket, and cover ed on the body; a drive pendulum arranged on the drive pendulum support cover and swinging between a first position and a second position around a pivot axis thereof includes a first and second drive parts. While the drive pendulum is in the first position, the nut is driven along a first transmission path by the first drive part; and when the drive pendulum is in the second position, the driving nut is driven by the second drive part along a second transmission path which has larger clamping force than the first transmission path. The invention can provide with larger clamping force, with simple structure and convenient control.

The invention discloses a surgical cart. The surgical cart is characterized by comprising a standing column. Vertical guide rails are arranged on the outer walls of the standing column. A slider is slidably arranged on each vertical guide rail. A base for mounting a mechanical arm is fixedly arranged on each slider. Limit devices for controlling the corresponding base to move in stroke limit are respectively arranged at the top and the bottom of each outer wall of the standing column. Each limit device comprises a first support plate and a buffer device, wherein the first support plate is arranged on the corresponding outer wall of the standing column, and the buffer device is arranged on one side of the first support plate and used for absorbing impact. The surgical cart has the advantages that mechanical arms can be controlled to move in stroke limit, and the surgical cart is good in safety and stability.

The invention discloses a nucleic acid kit for identifying laryngeal cancer cells. The kit comprises a kit body, a temperature control device is installed on the kit body, the upper end of the kit body is provided with a plurality of slots, and one end of a first inserted link is inserted into the slot. The first inserted link is inserted into the slot and a clamping plate passes over a sealing pad so that the leakproofness between a cover plate and the kit body is guaranteed and the normal work of the device is guaranteed. Through the temperature control device, a temperature switch is turnedon, through adjustment of a sliding varistor, the current passing through a heating wire is changed so that the temperature of the heating wire is changed, through a passthrough effect of a through pipe, the work temperature of the kit body can be changed according to demands so that the device can satisfy various operation environments, and a first permanent magnet and a second permanent magnetattract each other so that a pull plate tightly contacts with a rubber pad and thus a support plate is easy to plug and draw and the sealing property of the kit body is guaranteed.

The invention discloses a throttle valve for oil gas. The throttle valve comprises a valve body, a valve cover, a valve rod, a valve core and a valve seat. The valve seat is provided with a medium inflow channel and a medium outflow channel which are perpendicular to each other. The valve seat is embedded into the medium outflow channel. One end of the valve rod penetrates through the valve cover, extends outside the valve cover and is connected with a drive handle, the other end of the valve rod is connected with the valve core, and the valve core and the valve seat are driven by the valve rod to be used in cooperation with each other to control medium flow. The throttle valve is characterized in that the valve core is in the shape of a cone and is inverted to be matched with the valve seat, the upper portion of the inverted valve core protrudes outwards to form a flange, a sealing ring is arranged on the lower surface of the flange, and the upper portion of the valve seat caving downwards to form a step. When the valve rod is screwed tightly, the flange of the valve core and the step are sealed in a matched mode. The service life of the throttle valve is prolonged, and sealing performance of the throttle valve is greatly improved.

The invention relates to the technical field of ice drilling devices, in particular to a movable vertical-lifting ice drilling device and method. A moving platform of the ice drilling device is connected to the rear portion of a moving vehicle in a lifting mode, a drilling rod is vertically mounted on the moving platform, and the moving platform can drive the drilling rod to move vertically when rising and falling. A drilling rod transmission mechanism is mounted on the moving platform. An output shaft of the moving vehicle is connected with the drilling rod through the drilling rod transmission mechanism. The drilling rod transmission mechanism is used for converting power output by the moving vehicle into potential energy and then converting the potential energy into kinetic energy againunder driving of power of the output shaft, so that the power is provided for rotating of the drilling rod, a drilling bit is driven to rotate, and accordingly efficient ice drilling and perforatingoperation is achieved. According to the movable vertical-lifting ice drilling device and method, it can be guaranteed that the drilling precision is high, the device is moved conveniently, full-automatic operation can be achieved, vertical rising and falling of the drilling rod can be guaranteed strictly, and accordingly the problems that the drilling rod is bent, consequently, the ice drilling efficiency is low and the requirement for the depth is not met are avoided.

The invention discloses an air source system of a water-cooling air compressor for vehicles. The air source system comprises a double-crank inner support transmission structure, a controller and a water-cooling system, wherein the double-crank inner supporting transmission structure is driven by a motor, an elastic coupler and a crankshaft, cranks on the two sides of the crankshaft drive a low-pressure cylinder piston assembly and a high-pressure cylinder piston assembly to reciprocate up and down, and the gas compression process is completed; the controller is fixed on the motor, a labyrinthtype cooling water channel is arranged in the controller, and the controller shares the working state of an air supply system and feeds back fault information in real time; and the water cooling system is supplied with water by a whole vehicle water pump system, enters a crankcase water tank after passing through the labyrinth type cooling water channel in the controller, then enters a cylinder cover after passing through a water tank in a piston cylinder, returns to the piston cylinder and a crankcase again after passing through a water channel in an inner cavity of the cylinder cover, and isfinally discharged and converged into a whole vehicle circulating water channel. The air source system has the advantages of being high in compression efficiency, small in vibration, low in noise, long in service life, clean in air source, efficient, energy-saving, compact in structure, small in size, convenient to install and arrange and the like.

The present invention discloses a maximum gain direction-adjustable monopole antenna, which comprises an oscillator, an oscillator protection cover, a base and an insulating medium. The oscillator is embedded at the center of the oscillator protection cover. The oscillator and the oscillator protection cover define the center frequency point and the bandwidth of the antenna during operation. The antenna also comprises a reflecting plate and a reflecting plate angle adjusting device. The lower part of the reflecting plate angle adjusting device is connected with the base. The upper part of the reflecting plate angle adjusting device is connected with the reflecting plate. The reflecting plate is in the form of a folding type reflecting plate. The folding angel of the reflecting plate can be changed by the reflecting plate angle adjusting device, so that the maximum gain direction of the monopole antenna is changed. According to the technical scheme of the invention, the angle of the maximum gain direction of the antenna can be conveniently and quickly adjusted. At the same time, the impedance bandwidth of the antenna is ensured to be unchanged.

The invention discloses a nano-ceramic paper pulp abrasive disc and a production method thereof. Raw material components of the nano-ceramic paper pulp abrasive disc include nanometer corundum and nanometer fused alumina zirconia, and the disadvantages of poor toughness and low corrosion resistance are solved, the service life of pulp abrasive discs is prolonged, and production of high-end nonmagnetic paper pulp is realized. The production method of the nano-ceramic pulp abrasive disc comprises the following steps: (1) preparing the raw materials; (2) carrying out pressure forming; (3) carrying out isostatic compaction; (4) machining a blank; (5) carrying out high temperature sintering; and (6) carrying out abrasive machining. The method solves the technical problem of difficult demolding of special-shaped paper pulp abrasive discs, and opens up a new way for production of special-shaped ceramics.

The invention relates to a device for separating substance produced in a well, in particular to a skid mounted blowout gas recovery system and method. The skid mounted blowout gas recovery system comprises a blowout pipeline, a primary desanding device and a secondary desanding device, wherein the primary desanding device and the secondary desanding device are arranged on a movable chassis, a pipeline led out of a trial production well mouth is connected with the blowout pipeline and a gas inlet of the primary desanding device respectively through a tee joint I, a gas outlet of the primary desanding device is connected with a gas inlet of the secondary desanding device, a gas outlet of the secondary desanding device is connected with a gas inlet of a pressure regulating valve group, a gas outlet of the pressure regulating valve group is connected with a metering valve group, a tee joint II is arranged on the pipeline connected with the tee joint I and the primary desanding device, an outlet of the tee joint II is connected with the primary desanding device, and the other outlet of the tee joint II is directly connected with the pressure regulating valve group through a pipe. The skid mounted blowout gas recovery system is good in adaptability and wide in working range, natural gas processed and recovered by means of the system and method can be directly put into an outer net for usage, and the energy-saving and emission-reducing purposes can be achieved.

The invention provides a water-cooled combustor and a condensing boiler. The water-cooled combustor comprises a tubular body and fluid boxes connected to the two ends of the tubular body, wherein thetubular body comprises an inner barrel and a plurality of outer pipes, the inner barrel extends along the central axis and is provided with a mixing cavity, a plurality of rows of open holes are formed in the inner barrel, the multiple outer pipes are arranged in parallel around the outer side of the inner barrel, the length directions of the multiple outer pipes are consistent with the directionof the central axis of the inner barrel, each fluid box is provided with a fluid inlet and a fluid outlet, and the fluid inlets and the fluid outlets are correspondingly communicated with the multipleouter pipes. The combustor is not prone to blockage, and good in heat exchange effect, and can reduce the content of nitric oxide in flue gas.

The invention discloses an ironing and flattening device for a sheet-shaped flexible material, and the device comprises an outer frame, a big conveyor belt mechanism and a small conveyor belt mechanism, wherein the big conveyor belt mechanism and the small conveyor belt mechanism are installed inside the outer frame. The large conveyor belt mechanism comprises a big conveyor belt driving roller, abig conveyor belt driven roller, a big tension roller and a big conveyor belt, wherein the big conveyor belt driving roller, the big conveyor belt driven roller, the big tension roller and the big conveyor belt are fixed between the left and right baffle plates. The small conveyor belt mechanism includes a small conveyor belt driving roller, a small conveyor driven roller, a small tension rollerand a small conveyor belt, wherein the small conveyor belt driving roller, the small conveyor driven roller, the small tension roller and the small conveyor belt are fixed between the left and right baffle plates. The small conveyor mechanism abuts against the big conveyor belt from one side, so that the large conveyor belt mechanism is shaped like V, and the big conveyor belt and the small conveyor belt form a common opposite plane with an inlet wedge angle therebetween, and an upper heating plate is disposed behind the small conveyor belt at the inlet wedge angle. A lower heating plate is disposed behind the small conveyor belt between the small conveyor belt driven roller and the small tension roller, thereby realizing the synchronous ironing operation. The device can realize the rapidand efficient drying, ironing and flattening operations of the sheet-like flexible material.

The invention belongs to the technical field of garment processing, and particularly relates to an adjustable garment fabric spraying and drying device. The device comprises a device body, a conveyor,a spraying mechanism and a drying mechanism. The device body comprises a workbench and a protective cover, wherein the protective cover is fixedly installed on the top of the workbench. Four supporting frames which are symmetrically distributed are arranged at the bottom of the workbench, hydraulic rods which are used for adjusting the heights of the supporting frames are arranged in the middlesof the supporting frames, adjusting rods which are used for adjusting the hydraulic rods to stretch out and draw back are arranged at the adjusting ends of the hydraulic rods, and connecting rods which are fixedly connected are arranged between the supporting frames. Adjusting plates capable of moving up and down are arranged in the middles of the connecting rods, the two ends of the bottom of each adjusting plate are movably connected with the corresponding adjusting rods, adjusting belts which are fixedly connected are arranged on the adjusting plates, and reset springs which are connected with the adjusting plates and the connecting rods are arranged between the adjusting plates and the connecting rods. The hydraulic rods can be utilized to drive the supporting frames to conduct heightadjustment, and the requirements of different working environments can be met as required.

The invention relates to the technical field of organic materials and discloses an organic glass sheet material with excellent mechanical properties. When a prepared toughened composite material, serving as a modifying agent, is synthesized into a multipolymer with methyl methacrylate in a polymerization reaction, crosslinking modification is carried out to increase crosslinking points of a molecular chain and prevent cracks from being expanded, so that the mechanical properties are enhanced; compared with an existing methyl methacrylate polymer, the multipolymer has the advantages that the impact strength, tensile strength, Brinell hardness and static bending strength are much higher than those of the existing methyl methacrylate polymer; organic glass prepared by the invention has excellent mechanical properties, the light transmission performance is also improved and an applicable range is wider; the utilization function and service life of the organic glass are greatly improved, aspecific working environment is met and the damage rate is reduced; the practical significance of expanding an organic glass selling market can be realized and the organic glass sheet material is a technical scheme which is extremely worthy of being popularized and applied.

A clamping mechanism for clamping and replacing a diaphragm adopts a split type structural design and comprises a driving section clamping mechanism, a driven section clamping mechanism and a diaphragm replacing mechanism which are sequentially designed from left to right, and the diaphragm replacing mechanism is located between the driving section clamping mechanism and the driven section clamping mechanism. The driving section clamping mechanism can achieve axial feeding of pipelines and can also achieve axial displacement of the whole supporting seat, the driven section clamping mechanism achieves axial position fixing of butt-joint pipelines, and the diaphragm replacing mechanism achieves clamping and replacing of diaphragms between two pipelines. Reliable sealing and clamping among the driving section, the diaphragm and the driven section can be achieved through cooperation of the driving section, the diaphragm and the driven section, and safety and reliability of the whole test pipeline are guaranteed. On the driving form of each degree of freedom, the design which is simple in structure and convenient to install and debug is adopted, effective adjustment of displacement between the pipeline and the diaphragm is guaranteed, and the space utilization rate can be fully improved. According to the design of the structural form, all the mechanisms are relatively independent, interference among the mechanisms is small, the structure is simple, operation is convenient, and efficiency is high.

The invention discloses a movable integrated modular mechanism reclaimed sand device which comprises a movable wheel type container, wherein the movable wheel type container is a container installed on a platform trailer; a crusher, a belt elevator and a roller sand making machine are installed in the movable wheel type container; a collecting hopper is installed at the front end of the container,the crusher is installed under a discharging port of the collecting hopper, and discharged materials of the crusher are conveyed into the roller sand making machine through the belt elevator. The device disclosed by the invention can realize recycling of urban solid wastes, tailing wastes and the like. The equipment is integrated, modularized, light in weight, intelligent, convenient to move andsmall in size. Entrance and exit are flexible, the construction efficiency is high, the use cost is low, the energy consumption is low, the water consumption is low, and the emission is low. Various working environments can be met, one device has multiple functions, and the resource utilization rate of materials is increased. Various harmful heavy metals can be effectively removed. The device hasthe advantages of low noise, less raise dust and the like, and has small influence on surrounding environment.

The invention discloses a brush type sealing structure allowing a rotor to reverse. The brush type sealing structure comprises a stator, a brush type sealing part, pawls, spiral springs and the rotor,wherein the stator is annular, the inner circumference of the stator is sawtooth, and the brush type sealing part is arranged in the stator in a clearance fit manner; the brush type sealing part comprises a front baffle, a connecting area, a rear baffle and a brush wire strand, the front baffle, the connecting area, the rear baffle and the brush wire strand are integrally connected, the brush wire strand is clamped between the front baffle and the rear baffle, one end of the brush wire strand is fixedly connected with the connecting area, and the other end of the brush wire strand is obliquely arranged in the rotation direction of the rotor; arc grooves are uniformly formed in the periphery of the connecting area, one ends of the pawls are arranged in the arc grooves through pawl shafts,and the other ends of the pawls are inserted into tooth grooves of the inner circumference of the stator in coordination manner; and the spiral springs are arranged between the pawls and the brush type sealing part in a compression manner. In the case of rotor reversal, the brush type sealing structure can still guarantee that the brush wire strand is in a perfect condition, the service life of brush wires is prolonged, and the use cost of the brush wires is reduced.

The invention discloses a laser cladding device for repairing a main drive runway of a shield tunneling machine. The laser cladding device comprises a working platform and a cushion block. The cushionblock is fixed to one corner of the working platform. A first electric slide table is fixedly arranged in the middle of the top end of the working platform. An L-shaped fixed frame is fixedly arranged at the top end of a slider of the first electric slide table. A laser cladding head is fixedly arranged on the top of the front face of the L-shaped fixed frame. The positions, close to the two corners of the front face, of the top end of the working platform are each fixedly provided with a diameter adjusting mechanism. Each diameter adjusting mechanism comprises a second electric slide table and a supporting roller. When laser cladding is conducted on the main drive runway of the shield tunneling machine, a grinding wheel is driven by a second motor to rotate to grind the surface of the main drive runway of the shield tunneling machine, an obtained laser cladding coating meets the requirement for the working environment of the main drive runway of the shield tunneling machine, the performance of the main drive runway of the shield tunneling machine is improved, the service life of the main drive runway of the shield tunneling machine is prolonged, laser cladding and grinding are conducted at the same time, and the repairing efficiency can be effectively improved.

The invention relates to a composite material thin shell plane folding and unfolding device and folding and unfolding method. The composite material thin shell plane folding and unfolding device comprises a composite material thin shell, a folding and unfolding mechanism and a tail end supporting arm, wherein the folding and unfolding mechanism is mounted on one side edge of the composite material thin shell, and the tail end supporting arm is mounted on the opposite side edge of the mounting position of the composite material thin shell folding and unfolding mechanism. The composite material thin shell comprises a structural layer and a connecting layer; the structural layer is composed of at least two sections of arc bistable composite material tape structures which are arranged in parallel; and the connecting layer is a flexible film or fabric which is bonded on the surface of one side or two sides of the structural layer. The folding and unfolding mechanism comprises side plates, a head end supporting arm, a first limiting rod and a second limiting rod. The tail end supporting arm is formed by sequentially connecting at least two sections of outer telescopic rods, and the outer telescopic rods are installed on the convex face fixed to the tail end of the composite material thin shell. The device can be kept stable in an unfolded state and a folded state, can be repeatedly folded and unfolded, is high in space utilization rate, simple in structure, large in specific strength and specific modulus, resistant to high temperature and corrosion and capable of adapting to complex and changeable working environments.

The invention provides an optical imaging lens and an imaging device, which sequentially include from the object side to the image side: a first lens with optical power, whose object side is convex and the image side is concave; a second lens with negative power , the object side is concave and the image side is concave; the third lens with positive refractive power is convex on the object side and the image side is convex; the fourth lens with positive refractive power is convex on the object side and the image side is Convex; the fifth lens with positive refractive power, the object side is convex, the image side is convex; the sixth lens with negative power, the object side is concave, the image side is concave, and the fifth lens and the sixth lens The lenses comprise a cemented body; a seventh lens with negative refractive power, whose object side is convex and its image side is concave; and a diaphragm. The optical imaging lens of the present invention has the characteristics of large aperture, long focal length, high resolution, etc., and can meet the requirements of the vehicle field for a lens with a small field of view and a high resolution.