771results about How to "With miniaturization" patented technology

The invention discloses an optical imaging camera lens. The camera lens comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and an eighth lens in sequence from the object side to the image side along the optical axis. The first lens has positive focal power, and the object side is the convex side; the second lens has negative focal power;the second lens has positive focal power; the fourth lens has positive focal power or negative focal power, the object side is the concave side, and the image side is the convex side; the fifth lens has positive focal power or negative focal power; the sixth lens has positive focal power or negative focal power, and the object side is the convex side; the seventh lens has positive focal power or negative focal power; the eighth lens has negative focal power.

The invention provides a high speed data storing or reading method and device based on FPGA, the method and device belong to the computer field and the storage field. The device comprises an RAID controller (1), an SATA controller group (2), a multi-port memory controller group (3), an input output module (4), a RocketIO (5), an embedded processor (6), a memory controller module (7), a memory cell _1 (8), a memory cell _2 (9), a disk array (10) and an FPGA loading and configuring module (11). The modules 1-7 are realized in FPGA, and the modules 1-4 are connected with the embedded processor by a PLB bus. The embedded processor is taken as a core processing unit and coordinates and controls the entire system to operate. The device can simultaneously control a plurality of hard disks, and RAID0 and RAID1 can be realized by software configuration. The device is provided with a camlink interface, a PCIE interface and a fiber interface. The device reduces peripheral ASIC chip and PCB area and has the advantages of miniaturization, low power consumption and wide application.

The invention discloses a camera lens, which comprises a first lens with negative focal power, a second lens with positive focal power, a third lens with positive focal power, a fourth lens with negative focal power, a fifth lens with positive focal power and a sixth lens with negative focal power from an object side to an image side in sequence, wherein the second lens has a convex image-side surface, and is made of glass; the third lens has a convex image-side surface; the sixth lens has a convex object-side surface and a concave image-side surface; and the camera lens meets a conditional expression that: -1.7<f2 / f4<-0.7, the f2 is an effective focal length of the second lens, and the f4 is an effective focal length of the fourth lens. The camera lens disclosed by the invention can effectively eliminate aberration, meet the demand of high pixels and reduce costs while guaranteeing miniaturization.

The present invention provides one kind of system to perform distributive multi-point detection for corrosion, crack, leakage, wax precipitation, scaling and other status in long oil and gas conveying pipeline by means of fiber grating sensing technology. The system includes near-infrared wide-band semiconductor laser source array, wavelength division multiplexer, bi-directional fiber coupler, fiber grating sensor array, spectral analyzer and signal transmission optical cable. The continuous near-infrared light signal the laser source array emits is transmitted to fiber grating sensor array embedded inside the long oil and gas conveying pipeline through the wavelength division multiplexer and the bi-directional fiber coupler, the sensor array detects the varying temperature and pressure of fluid inside the pipeline and reflects to the bi-directional fiber coupler while being coupled to the analyzer and the computer to obtain the conveying status inside the pipeline.

The invention discloses an optical imaging lens. The optical imaging lens sequentially comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lensfrom the object side to the image side along the optical axis. The first lens is positive in focal power, and the object side surface thereof is a convex surface. The second lens is negative in focalpower, and the third lens is positive in focal power. The fourth lens and the fifth lens are positive in focal power or negative in focal power. The sixth lens is positive in focal power. The seventhlens is negative in focal power, wherein the object side surface and the image side surface thereof are both concave surfaces. The combined focal length f12 of the first lens and the second lens, andthe combined focal length f34 of the third lens and the fourth lens meet the relation of |f12 / f34|<=0.3.

The invention discloses a high-different frequency isolation broadband double-frequency base station antenna array, which comprises at least one high-frequency antenna unit, a low-frequency antenna unit and a floor board, wherein when one high-frequency antenna unit exists, the high-frequency antenna unit is placed at one side of the floor board, when multiple high-frequency antenna units exist, the high-frequency antenna units are placed at two sides of the floor board respectively, each high-frequency antenna unit comprises multiple oscillator arms and a Balun, the oscillator arms are connected through a distributed inductor, and feeding is carried out through the Balun; the low-frequency antenna unit is placed in the middle of the floor board and comprises multiple oscillator arms and a Balun, the oscillator arms are connected through a distributed capacitor, feeding is carried out through the Balun, the Balun is provided with a feeder line and an H-type microstrip branch, and the H-type microstrip branch is connected with the feeder line. In a condition of not cascading filters, high isolation in a condition in which the distance between the different-frequency antenna units is small and the floor board is small can be realized, insertion loss of a filter is avoided, a stable pattern in a broadband is realized, and due to a decoupling structure, the volume of an antenna unit is not added extraly.

The invention discloses a camera lens. The lens sequentially comprises a first lens with positive refractive power, a second lens with negative refractive power, a third lens with focal power, a fourth lens with focal power, a fifth lens with focal power, a sixth lens with focal power and a seventh lens with negative refractive power from an object side to an image side along an optical axis, wherein the object side surface of the sixth lens is a convex surface; the image side surface of the sixth lens is a also a convex surface; and the object side surface of the seventh lens is a convex surface. The effective focal length of the second lens and the effective focal length f of the camera lens meet the following relational expression: -3< / = f2 / f< -1.5.

The invention discloses an imaging lens. The imaging lens comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens sequentially from an object side and an image side along an optical axis, wherein the first lens has positive focal power, and the object side surface of the first lens is a convex surface; the second lens has negative focal power; the third lens has negative focal power, the object side surface of the third lens is a convex surface, and the image side surface of the third lens is a concave surface; the fourth lens has focal power; the fifth lens has positive focal power; the sixth lens has focal power, and the object side surface of the sixth lens is a concave surface; any two of the first lens, the second lens, the third lens, the fourth lens, the fifth lens and the sixth lens are glued to form a glued lens group; and the combined focal length f12 of the first lens and the second lens, the curvature radius R1 of the object side surface of the first lens and the curvature radius R4 of the image side surface of the second lens meet the condition that 2.0<f12 / R1+f12 / R4 <3.3.

The microfluid concentration gradient cell culturing chip includes 2 sample inlets, 3 layers of sinuous canals, 1 dendrite structure to form 5 linear concentration gradient distributions, 5 cell culturing passages and 1 sample outlet. The dendrite structure is connected directly to the cell culturing passages with 'dam-shaped notch' structure, and 2 sample inlets are located symmetrically over the horizontal connecting canals. The microfluid concentration gradient cell culturing chip is prepared through one soft etching process including the following steps: 1. making mold with SU-8 2000 photoresist, and molding polydimethyl siloxane to form; and 2. oxygen plasma treatment and bonding with glass substrate to obtain the microfluid concentration gradient cell culturing chip. The microfluid concentration gradient cell culturing chip may be applied in cell drug screening and cell toxicological experiment.

The invention provides a single-chip three-shaft magnetic field sensor and a production method. The single-chip three-shaft magnetic field sensor at least comprises a first substrate, at least two first electrodes, at least four second electrodes, a second substrate, a single-shaft rotation structure, a double-shaft rotation structure, a first magnetic film structure and a second magnetic film structure, wherein the first electrodes and the second electrodes are formed on the surface of the first substrate, the second substrate and the first substrate bond together through keys, the second substrate is provided with the single-shaft rotation structure and the double-shaft rotation structure, the single-shaft rotation structure and each of the two first electrodes form a capacitor structure, and the double-shaft rotation structure and each of the four second electrodes form a capacitor structure. The first magnetic film structure is formed on the surface of the single-shaft rotation structure and can generate corresponding torque under the action of a magnetic field in a first direction, and the second magnetic film structure is formed on the surface of the double-shaft rotation structure and can generate corresponding torque under the action of a magnetic field in a second direction and a magnetic field in a third direction. The single-chip three-shaft magnetic field sensor has the advantages of being high in sensitivity, small in size, low in power consumption and cost, easy to package and the like.

The application discloses an optical imaging lens group, which comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and an eighth lens in sequence from the object side to the image side along the optical axis. The first lens has positive focal power, the object-side surface is convex, and the image-side surface is concave. The second lens has negative focal power, and the image-side surface is concave. The third lens has positive focal power, and the object-side surface is convex. The fourth lens has focal power. The fifth lens has focal power. The sixth lens has focal power, the object-side surface is convex, and the image-side surface is concave. The seventh lens has positive focal power. The eighth lens has focal power. The totaleffective focal length f of the optical imaging lens group and the entrance pupil diameter EPD of the optical imaging lens group satisfy the relational expression f / EPD<1.4.

The invention discloses a camera lens. The lens sequentially comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and an eighth lens from an object side to an image side along an optical axis, wherein the first lens has positive focal power, and an object side surface of the first lens is a convex surface; the second lens has focal power, and an image side surface of the second lens is a convex surface; the third lens has focal power; the fourth lens has focal power; the fifth lens has focal power; the sixth lens has focal power; the seventh lens has focal power; and the eighth lens has focal power, the object side surface of the eighth lens is a convex surface, and the image side surface of the eighth lens is a concave surface. Thedistance TTL from the object side surface of the first lens to the imaging surface of the camera lens on the optical axis and the half ImgH of the length of a diagonal line of an effective pixel region of an electronic photosensor of the camera lens meet the following formula: TTL / ImgH< 1.65.

The application discloses a camera shooting lens group which comprises a first lens, a second lens, a second lens and a fourth lens that are orderly arranged from an object side to an image side along an optical axis. Object side faces of the first lens and the second lens are convex faces; an image side face of the third lens is a convex face, an image side face of the fourth lens is a concaved face, both of the first lens and the third lens have positive focal power, the second lens and the fourth lens have positive focal power or negative focal power, and total effective focal length f of the camera shooting lens group and an entrance pupil diameter EPD of the camera shooting lens group satisfy the condition of f / EPD<1.5.

The invention discloses a small-size self-centering one-way loading biaxial tension-compression test device. The device is characterized by comprising a loading transmission device and a combined type framework, wherein the combined framework is composed of a main framework 1 and a suspension framework 2, the loading transmission device comprises transverse loading shafts (12 and 13), vertical loading shafts (10 and 15), inclined rigid rods (9, 11, 14 and 16), transverse sliding rods (3 and 7), sliding connectors (4 and 8), stepping motors (5 and 6), fixing and sliding dual-use hinged supports (23 and 24) and fixing hinged supports (25 and 26). According to the small-size self-centering one-way loading biaxial tension-compression test device, the function of biaxial tension and compression can be achieved by means of one-way loading; and simultaneously, problems that the fluctuation process that the center of a test piece is deviated and goes back to the center of the loading device happens in the test process always and the test piece is difficult to clamp and adjust are solved.

The invention discloses a method called optical interferometry about spectrometer, imaging and simultaneous phase-shifting: enlarge polarization laser beam emitted by laser source and get linearly polarized planer source, then, enter the interference system of linearly polarized planer source and get a interference field where testing wavefront and reference wavefront have collinear beam and polarization direction is vertical each other. beam of light of interference field is divide ed into 4 beams of light whose space is distributed symmetrically and whose intensity is symmetrical after passing through 1 / 4 wave plate and light dividing system of combined glass prism, the four beams of light projects to ccd focus plane after it is through polaroid analyzer, thus, we get four interference fringe pattern whose phase move 90 degrees after a sampling at a high speed. At the same time, it discloses the device using the method. According to the device and method of this invention, the principle is clear and the method is simple, the device possesses miniaturization. It realizes dynamic measuring whose optic interference is high-accuracy at the scene; it is simpler and more convenient to measure the course.

The invention provides a minitype optical fiber FP sensor produced by fetosecond laser pulse, which is to produce a small cavity with rectangle cross section, and full penetration through fiber core on an ordinary single-mode optical fiber, and the depth of the small cavity satisfies: (D+d) / 2<=h<=D, wherein D is the diameter of the fiber, d is fiber core diameter. The invention also provides the production method of the invention. The sensor is superior in not only the special physical characteristic of miniaturization, integration, Convenience for production and reuse, strong harsh environment resistance capability, but also having negative temperature sensitivity and improving the sensitivity of axial load in a certain extent, and being applied in the optical sensing field in the future.

The invention discloses an optical imaging camera lens. The camera lens successively comprises a first lens, a second lens, a third lens, a fourth lens and a fifth lens along an optical axis from an object side to an image side, wherein the first lens has focal power, an object side surface is a concave surface and an image side surface is the concave surface; the second lens has positive focal power; the third lens has the focal power and the object side surface is a convex surface; the fourth lens has the positive focal power; the fifth lens has negative focal power; and the effective focallength f1 of the first lens and the radius of curvature R1 of the object side surface of the first lens satisfy the following relation: f1 / R1 is greater than or equal to 0.7 and is less than 1.5.

The invention discloses a phase shifter which comprises a first layer medium plate, a second layer medium plate, an inverted micro-strip structure and a third layer metal plate. The first layer medium plate, the second layer medium plate and the third layer metal plate are sequentially arranged from top to bottom. The inverted micro-strip structure is arranged on the lower surface of the first layer medium plate. A rectangular groove is formed in the middle of the second layer medium plate. When the first layer medium plate is placed on the second layer medium plate, the inverted micro-strip structure on the first layer medium plate is placed in the rectangular groove, nematic liquid crystal is arranged in a cavity which is formed by making the rectangular groove in the second layer medium plate matched with the first layer medium plate and the third layer metal plate, and a connector is installed in installation notches in corresponding positions of the second layer medium plate and the third layer metal plate. According to the phase shifter, the performance of the nematic liquid crystal is utilized, and therefore the phase shifter can work under microwave frequency bands, has the advantages of being miniaturized, low in manufacturing cost, high in phase shifting degree, low in working voltage and the like, and has quite high practicability.

A dual mode video target identification tracking system belongs to a video image processing technology in the electronics field. The system comprises: a first interface conversion module, a first field programmable gate array (FPGA), a first data memory, a first digital signal processing (DSP), a first program memory, a second interface conversion module, a second FPGA, a second data memory, a second DSP, a second program memory, a serial port module and a signal conversion module. By using the system, video signals of an infrared camera and a visible camera can be simultaneously collected and the two DSPs are integrated. The first DSP is responsible for processing image data of the visible camera and the second DSP is responsible for processing image data of the infrared camera. A processing result of the visible camera can be acquired from the first DSP and final target miss distance can be determined optimally through a serial port output tracking result. In the invention, the video signals of two waveband cameras can be simultaneously processed, the two DSP can form mutual communication and the optimized determination can be performed to the two results so that the stable calculation result can be obtained.

The invention relates to an SOB-based aircraft remote measurement combo and remote measurement system. The remote measurement combo comprises a central logic control module, a data collection module, a power management module, a storage module and a physical interface. The central logic control module receives a digital signal from the data collection module, receives external serial data through a physical interface at the same time, carries out first frame encoding processing of the digital signal and the serial data, and saves the data subjected to the first frame encoding processing in the storage module. After second frame encoding processing is started, the central logic control module reads data from the storage module for the second frame encoding processing and converts the parallel data subjected to the second frame encoding processing into a PCM code stream and sends the PCM code stream to an external transmitter. Under the prerequisite of ensuring real-time recording of remote measurement data, the remote measurement combo and the remote measurement system can obtain higher remote data reception robustness, improve the reliability of remote measurement downward-transmission and the controllability of remote data transmission, and reduce the probability of important data losses.

The invention discloses a Fabry-Perot sensor capable of simultaneously detecting double parameters and a detection device. The Fabry-Perot sensor is formed by sequential butt fusion of three sections of optical fiber. A first section of optical fiber is monomode optical fiber. A second section of optical fiber is photonic crystal fiber. A third section of optical fiber is monomode optical fiber. After the three sections of optical fiber are sequentially welded, two Fabry-Perot cavities different in length are formed in two butt fusion positions through a micro-processing method. The length of the photonic crystal fiber is larger than 500 microns. Lengths of the two Fabry-Perot cavities are respectively 40-100 microns. The length of one Fabry-Perot cavity is 10-20 microns larger than the length of the other Fabry-Perot cavity. The detection device based on the Fabry-Perot sensor further comprises a first coupler, a second coupler, a first broadband light source, a second broadband light source and a spectrograph. The Fabry-Perot sensor overcomes the defect that loss exists in butt fusion of an existing photonic crystal fiber and an existing monomode optical fiber, has the advantages of being capable of simultaneously detecting double parameters and microminiaturized, being reduced in weight, being easy to integrate, and being capable of being operated in a complete sequencing mode.

The invention relates to a driving three-dimensional omni-directional vision sensor based on a laser diode light source, comprising an omni-directional vision sensor with fixed and single viewpoint, afull-view color body structure optical generator with fixed and single transmitting central point and a microprocessor used for carrying out three-dimensional photographic measurement on the omni-directional images; the viewpoint of the omni-directional vision sensor and the transmitting central point of the full-view color body structure optical generator are configured on a same axis line; theomni-directional vision sensor comprises a photographic unit and a double curved surface catadioptric unit, wherein, the photographic unit is a wide-dynamic CMOS imaging device; the full-view color body structure optical generator comprises a round face body base plate and a group of laser diodes with different luminescence center wavelengths; and the microprocessor comprises an LD light source control unit, a video image reading module, a space information calculating module and a three-dimensional image reconstructing module. The driving three-dimensional omni-directional vision sensor can reduce calculation, fast completes measurement, and has good real time and strong practicability.

The application provides an optical imaging lens group. The optical imaging lens group comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and an eighth lens in sequence along an optical axis from an object side to an image side. The first lens has a focal power, the second lens has a positive focal power, the third lens has a focal powerand an image side surface thereof is a convex surface, the fourth lens has a negative focal power, the fifth lens has a focal power, the sixth lens has a focal power and an object side surface thereofis a concave surface and an image side surface thereof is a convex surface, the seventh lens has a positive focal power, and the eighth lens has a focal power.

The invention discloses a projection lens which sequentially comprises a first lens, a second lens and a third lens along the optical axis from an image-source side to an imaging side. The first lenshas positive focal power, and the surface, which is close to the image-source side, of the first lens is a convex surface; the second lens has positive focal power or negative focal power; the third lens has positive focal power and is a meniscus lens, and the surface, which is close the imaging side, of the meniscus lens is a convex surface. The image-source height ImaH of the projection lens andthe total effective focal length f of the projection lens meet a conditional expression of ImgH / f 0.2.

Disclosed is a medicament for treating cardiovascular diseases which comprises the following raw materials: glossy ganoderma extract, hooked uncaria, fleece-flower root, root of bidentate achyranthes, Ligusticum wallichii, epimeddium, dodder seed, cassia seed, cape jasmine, rhubarb horsetails, banksia rose, dahurian angelica root, root of herbaceous peony, Chinese angelica root, iron ocher, poria cocos wolf, pinellia tuber, rough gentian, Chinese yam, capsule of weeping forsythia, wild chrysanthemum flower, dried orange peel, cinnabar.

The invention discloses an optical imaging lens, which sequentially comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens along an optical axis from an object side to an image side. The first lens has negative focal power; the second lens has negative focal power; the third lens has positive focal power; the fourth lens has positive focalpower; the fifth lens has focal power, and the object side surface of the fifth lens is a concave surface; the sixth lens has focal power; and the seventh lens has negative focal power. An effectivefocal length f1 of the first lens and a total effective focal length f of the optical imaging lens meet an inequation: -3.5<f1 / f<0.

The invention relates to an electronic-type current-voltage-combined transformer for a GIS (gas insulated switchgear). The electronic-type current-voltage-combined transformer comprises an external voltage container shell and a suspension potential barrel. A first conductor penetrates through the suspension potential barrel. A Rogowski coil current transformer and a coaxial capacitive voltage divider are mounted on the suspension potential barrel. The coaxial capacitive voltage divider comprises a high-voltage capacitor and at least two low-voltage capacitors. Each low-voltage capacitor forms an output channel. The low-voltage capacitor can be increased to multiple numbers such as two, functions of double-voltage instrument transformer sensing heads, double output and double protection can be achieved, and the electronic-type current-voltage-combined transformer has the advantages of small size, high interference resistance, high precision, high reliability, low cost and the like.

The invention discloses a tracking system of a satellite-ground quantum communication link direction, aiming at the application background of the high-precision beaconing tracking of satellite-groundquantum communication, and provides a real-time high-precision high-bandwidth beaconing detection and information acquiring system of FPGA hardware image processing and information extraction based ona CMOS or CCD detector and adopts an integrated design method. The invention also proposes a beaconing facula image processing method with the combination of facula shaping and position extraction, inhibits the interrupting influence of an atmosphere turbulence signal channel between a satellite and the ground on the beaconing facula, and improves the tracking and pointing precision, bandwidth and stability of a capturing tracking system. Under the condition that the atmosphere turbulence exists, the detection precision of the system on beaconing laser is better than 0.5 mu rad, and the detection bandwidth is higher than 2.5 kHz. The invention satisfies the requirement of the satellite-ground quantum communication capturing tracking system, in particular a satellite-carried terminal.

The invention discloses an optical imaging lens which comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens from an object side to an imageside in sequence along an optical axis, wherein the first lens has positive focal power and has a convex object side surface; the second lens has negative focal power and has a concave image side surface; the third lens, the fourth lens, the fifth lens and the sixth lens all have positive focal power or negative focal power; the seventh lens has negative focal power and a concave object side surface. The total effective focal length f of the optical imaging lens and the effective focal length f1 of the first lens meet the equation that f / f1 is greater than or equal to 2.0.