88results about How to "Wide transmission range" patented technology

A heat treated electrochromic device comprising an anodic complementary counter electrode layer comprised of a mixed tungsten-nickel oxide and lithium, which provides a high transmission in the fully intercalated state and which is capable of long term stability, is disclosed. Methods of making an electrochromic device comprising an anodic complementary counter electrode comprised of a mixed tungsten-nickel oxide are also disclosed.

An illuminating lens has a light entrance surface and a light exit surface. The light exit surface has a first light exit surface recessed toward a point on an optical axis A and a second light exit surface extending outwardly from the periphery of the first light exit surface. The first light exit surface includes a transmissive region located in the center of the first light exit surface and a total reflection region located around the transmissive region. The transmissive region transmits light that has been emitted from a starting point Q, which is the position of a light source on the optical axis A, at a relatively small angle with respect to the optical axis A. The total reflection region totally reflects light that has been emitted from the starting point Q at a relatively large angle with respect to the optical axis A.

The invention provides a wireless power transmission system and method. The wireless power transmission system includes an emission module, a reception module, a control module and a power supply module, wherein the emission module is used for receiving driving voltage to generate driving current so as to generate an alternating magnetic field, and is coupled with the reception module to perform wireless power transmission; the reception module is used for coupling with the emission module to perform wireless power transmission, and sending the feedback information to the control module; the control module is used for acquiring the amplitude and phase controlling the driving current according to the feedback information, and enabling the power supply module to work according to the acquired amplitude and phase; and the power supply module is used for receiving the amplitude and phase and adjusting the amplitude and phase so as to supply driving voltage for the emission module and generate the required driving current. The invention provides a wireless power transmission system and method, based on a three dimensional coil wave beam shaping technology. The wireless power transmission system and method can control the magnitude and direction of the magnetic induction intensity in the three dimensional space by means of control of the current amplitude flowing into the coil and the phase, enable the magnetic field to direct at the specific position, can continuously feed back information, and can reduce the system stable state error to achieve the aim of field orientation.

The invention discloses 2-micron luminous rare-earth ion-doped germanate laser glass and a preparation method thereof. The mol percentage composition of the glass is as follows: 60 to 65 percent of GeO2, 15 to 20 percent of BaF2, 2 to 13 percent of Ga2O3, and 2 to 13 percent of Re2O3ReF3; wherein, Re is the rare-earth elements of La, Yb, Tm and Ho. The rare-earth ion doping mode of the glass is: single doping of Tm, double doping of Yb and Tm, double doping of Yb and Ho, double doping of Tm and Ho, or three doping of Yb, Tm and Ho. Rare-earth ions are introduced in the form of rare earth oxides or rare earth fluorides and can all obtain the glass with stability and excellent luminous performance. Test result shows that the germanate glass in the invention has higher transmission rate and wider transmission range. A fluorescence spectrum test shows that the germanate laser glass of the invention can obtain excellent fluorescence emitting approaching to 2-micron. The laser glass of the invention is also suitable for preparing 2-micron optical fiber perform cores.

The invention discloses a self-adaptive cruise control system and a self-adaptive cruise control system method for an electric automobile based on car networking. The system as shown in a figure comprises a car networking device for cars, a car networking road device and an electric automobile self-adaptive cruise controller, wherein the car networking device for cars is arranged in the electric automobile to acquire information of external roads and other vehicles by means of wireless communication; the car networking road device is arranged on the side of a road, is connected to a cloud server and is wirelessly connected to the car networking device for cars and transmits the information; and the electric automobile self-adaptive cruise controller is connected to the car networking device for cars to receive information acquired outside and control the self-adaptive cruise function of the electric automobile. According to the system and method, the transmission range and quantity ofinformation of traffic information are expanded, and wireless transmission delay is reduced. The invention also provides the self-adaptive cruise control method for the electric automobile based on car networking. A dynamic planing strategy is formulated to update the brake strategy of the automobile in real time according to the velocity of the front automobile by following the velocity of the front automobile by means of regenerative braking deceleration, so that the regenerative braking effect of the electric automobile is optimum.

The invention provides a coal mine tunnel roof stress online monitoring system based on a fiber grating sensor and a method thereof, and is suitable for the field of tunnel mine pressure monitoring. The coal mine tunnel roof stress online monitoring system based on the fiber grating sensor comprises monitoring and observation stations which are arranged on the roof of the tunnel of the two sides of a coal face. Each monitoring and observation station comprises three roof stress monitoring devices. The roof stress monitoring devices in each monitoring and observation station are connected in series together through communication optical fibers. The tail fiber of the lead-out end optical fiber of the monitoring and observation station of each tunnel tail end is connected with an optical fiber terminal box through the communication optical fiber. The optical fiber terminal box is connected with a fiber grating static demodulator arranged on the ground through a transmission optical cable for mining. The fiber grating static demodulator is connected with a monitoring computer and a network server in turn. The network server is connected with multiple client sides through a coal mine local area network. The coal mine tunnel roof stress online monitoring system is high in measurement accuracy and long in the service life so as to realize real-time online monitoring of the coal mine tunnel roof stress.

The invention discloses an infrared second-order nonlinear optical crystal material CsHg1.5I4 and a preparation method and application thereof. The crystal space group of the optical crystal material is Cm. The optical crystal material has the advantages of large phase-matchable second-order nonlinear optical coefficients, large light-transmitting widows in a visible region and an infrared region, high thermal stability, simple operation of a synthesis method, short reaction time, moderate experimental conditions and high purity of products; in addition, high-quality and big-size crystals can be produced through a simple method of solvent volatilization; thus the optical crystal material can be widely applied in the optical field.

This inventive infrared ray transmitting glass (gallate glass) is composed of (by mol percentages): Ga2O3:5-40, MO / MCO3:30-70,MF2 / MCl2:0.1-25,Me2O3:0-24. During the smelting, introduced are: dry air, CC14, GeC14, C12, SOC12, one or more of these kinds, to effectively lower the harmful content of hydroxyl. The glass has its cut-off wavelength longer than 6um, and has advantages of: low glass phonon energy, better glass formation property, excellent mechanical property, high optical quality, low hydroxyl content, suitable for making plane sensor window, scout plane window, automobile window, head cover of missile, optical fiber of infrared ray laser, substrate glass of optical fiber amplifier.

The invention relates to an inorganic compound Na2Sn(IO3)6 as well as a preparation method and application thereof. The chemical formula of the compound is Na2Sn(IO3)6 and belongs to a hexagonal system, the space group is P63, and the unit cell parameters are shown in the specification, and the unit cell volume is shown in the specification. The colorless acicular Na2Sn(IO3)6 crystal is prepared by using a hydrothermal method. The powder frequency-double effect of the Na2Sn(IO3)6 crystal is 12 times of that of KH2PO4, and the ultraviolet cutoff edge of the Na2Sn(IO3)6 crystal is about 300nm.

A lens for illumination has a light entrance surface and a light exit surface. The light exit surface has a first light exit surface and a second light exit surface. The first light exit surface projects toward a vertex on the optical axis, and the second light exit surface extends outwardly from the periphery of the first light exit surface. The first light exit surface has a shape allowing light that has been emitted from a starting point, which is the position of a light source on the optical axis, at an angle of a specified value or more with respect to the optical axis and reached the first light exit surface to reach a surface to be irradiated by totally reflecting the emitted light at a first point thereon reached by the emitted light first and then refracting the totally reflected light at a second point thereon reached by the emitted light after being totally reflected. The second light exit surface has a shape allowing light that has been emitted from the starting point and reached the second light exit surface to reach the surface to be irradiated by refracting the emitted light at a point thereon reached by the emitted light.

The invention discloses an inorganic crystal compound Rb2BiI5O15 as well as a preparation method of the compound and an application of the compound as a second-order nonlinear optical crystal material. The material has the outstanding characteristics as follows: RbIO4, RbCl, Bi2O3 and H5IO6 are taken as initial reactants for the first time and the material is prepared by adopting a hydrothermal method; a relatively good second-order nonlinear optical effect capable of being subjected to phase matching is obtained; very large light-transmitting windows are formed in a visible light region and a mid-infrared light region; a band gap is relatively large and the thermal stability is relatively good; a synthetic method is easy to operate, high in raw material utilization rate, mild in experimental conditions and high in product purity; the crystal material can be widely applied to the field of optics.

A zinc gallium oxide ceramic target used for sputtering and electrically conductive transparent film is prepared through mixing zinc oxide powder with gallium oxide powder, cold die pressing and sintering. Its advantages are simple process, low cost and high stability of performance. The said film has excellent photoelectric performance, so it can be used as the electrode of solar cell.

The invention discloses an inorganic infrared non-linear optical crystal material. In the inorganic infrared non-linear optical crystal material, the molecular formula is Hg2BrI3; the crystal space group is Cmc21; a is equal to 4.698 (1) angstroms; b is equal to 7.2246 (6) angstroms; c is equal to 13.520 (1) angstroms; alpha, beta and gamma are the same and equal to 90 o; and Z is 4. The inorganic infrared non-linear optical crystal material has high second-order non-linear optical coefficients capable of performing phase matching, big light-transmitting windows in ultraviolet, visible light and infrared regions and high thermal stability. A synthetic method of the inorganic infrared non-linear optical crystal material comprises the following steps of: adding HgBr2 and HgI2 in a molar ratio of 2:1 into acetone to dissolve; stirring at the temperature of between 30 and 50 DEG C for 8 hours; and after the reaction is finished, placing at room temperature to naturally volatilize the solvent to obtain a yellow transparent crystal. The crystal material can be widely applied in the fields of optics and the like.

A light exit surface of an illuminating lens has a first light exit surface and a second light exit surface. The first light exit surface is recessed toward a point on the optical axis, and the second light exit surface extends outwardly from the periphery of the first light exit surface. The first light exit surface has a transmissive region and a total reflection region. When the position of a light source on the optical axis is defined as a starting point, the transmissive region transmits light that has been emitted from the starting point at a relatively small angle with respect to the optical axis, and the total reflection region totally reflects light that has been emitted from the starting point at a relatively large angle with respect to the optical axis. A reflective layer is formed on a bottom surface that surrounds a light entrance surface and faces oppositely to the light exit surface. The reflective layer reflects light that has been emitted from the light source, totally reflected repeatedly at the light exit surface, and then reached the bottom surface.

The invention relates to a low-power spread-spectrum wireless communication module which comprises a radio-frequency chip, a single chip microcomputer, a power circuit, a crystal oscillation circuit, a radio-frequency circuit, and an antenna. The radio-frequency chip and the single chip microcomputer perform SPI communication. The power circuit inputs a voltage to the single chip microcomputer and the radio-frequency chip. The radio-frequency chip and the antenna are connected by the radio-frequency circuit. The output of the crystal oscillation circuit is sent to the single chip microcomputer. The radio-frequency circuit consists of a radio-frequency signal receiving circuit and a radio-frequency signal transmitting circuit. The single chip microcomputer is an STM8 single chip microcomputer. The invention further discloses a low-power spread-spectrum wireless communication method. The module and the method have the advantages as follows: the power consumption and cost are low, the network transmission efficiency is improved, and interference is reduced; a wider transmission range and a longer transmission distance are achieved, zero-fee data transmission is realized, and only power supply by batteries is needed; and specific Internet-of-things enterprises can build a low-power wide-area network through the low-power wireless communication module to remotely receive data collected by a sensor.

Disclosed are ophthalmic device materials having improved light transmission characteristics. The materials contain a combination of certain UV absorbers and blue-light absorbing chromophores.

The invention discloses intermediate infrared optical glass for fine molding and molding. The intermediate infrared optical glass comprises the following components by molar ratio: 40-80% of GeS2, 5-40% of Ga2S3, 1-15% of La2S3 and 1-20% of Sb2S3. The intermediate infrared optical glass disclosed by the invention has a wide infrared transmission range, good glass-forming ability, simple preparation process, high refractive index, high mechanical strength and low glass transition temperature, and does not contain any ingredients adverse to the environment and the mold, such as lead, arsenic, fluorine, chromium and the like.

An illuminating lens has a light entrance surface and a light exit surface. The light exit surface has a first light exit surface recessed toward a point on an optical axis A and a second light exit surface extending outwardly from the periphery of the first light exit surface. The first light exit surface includes a transmissive region located in the center of the first light exit surface and a total reflection region located around the transmissive region. The transmissive region transmits light that has been emitted from a starting point Q, which is the position of a light source on the optical axis A, at a relatively small angle with respect to the optical axis A. The total reflection region totally reflects light that has been emitted from the starting point Q at a relatively large angle with respect to the optical axis A.

The invention discloses an intelligent valve remote control system and a working method thereof and relates to the field of remote control of valves. The invention provides the intelligent valve remote control system and the working method thereof, which are smart in structure, low in operation difficulty and low in cost, and can timely find out and feed back abnormal conditions of a valve in use, so that people can quickly make a judgment and timely give commands to electric execution mechanisms. The electric execution mechanisms are used for driving the valve and communicate with a signal collecting device, a monitoring center communicates with a telecommunication base station by wireless information, a plurality of mobile phone clients communicate with the telecommunication base station by the wireless information, a plurality of the electric execution mechanisms communicate with the telecommunication base station by the wireless information, and the electric execution mechanisms are in one-to-one correspondence to the mobile phone clients. The system and the method have the characteristics of being wide in transmission scope, convenient in communication, simple to use, easy to popularize and the like.

The invention discloses a novel inorganic compound K2BiI5O15, and a preparation method, properties and application thereof as a second-order nonlinear optical crystal material. The outstanding characteristics of the material are that KIO4, KCl, Bi2O3 and H5IO6 are adopted as initial reactants for the first time to prepare the material in a hydrothermal method; the material has a stronger phase-matching second-order nonlinear optical effect, a broad light transmitting window in the visible region and the middle infrared region, a larger band gap and higher heat stability; the preparation method is easy to operate, high in raw material utilization rate, mild in experiment condition and high in product purity; the crystal material can be widely applied in the field of optics.

A mobile ad-hoc routing apparatus includes a first communication module and a second communication module configured to transmit and receive data through a first communication band and a second communication band, respectively, a memory configured to store a program for transmitting and receiving the data, and a processor configured to execute the program stored in the memory, wherein when the program is executed, the processor receives first control information broadcast by one or more neighboring nodes via the first communication module and stores the first control information in the memory, wherein the first control information includes current position and communication status information of the neighboring node, the processor updates information on the neighboring node on the basis of the first control information, generates packet forwarding information which includes information on a node which currently allows packet data to be transmitted based on the updated information on the neighboring node, and stores the generated packet forwarding information in the memory, and the processor determines a subsequent node which allows the packet data to be transmitted to a destination node on the basis of the packet forwarding information and transmits the packet data to the subsequent node via the second communication module.

The invention discloses a GPRS monitoring system for remote monitoring and managing of a tower machine, which comprises a preposed meter, a server, a database and a web management center. The GPRS monitoring system is characterized in that: the preposed meter which is arranged on the site of the tower machine comprises a sensor, a signal collecting and processing module, an MCU (micro controller unit), a hand-held debugging keyboard, a power supply module, a GPRS transmitting module, a protection output module, a data storage module and a display module; the sensor transmits detected data to the signal collecting and processing module for DAC (digital-to-analogue conversion) and then transmits the detected data to the MCU, the protection output module compares the actually detected data with a set value and then judges whether to carry out security protection control, the GPRS transmitting module transmits data in the MCU, and then the server transmits the data onto the Internet after carrying out statistical processing on the data. The GPRS monitoring system utilizes the Internet to realize the monitoring management for the tower machine at any time anywhere. Therefore, the GPRS monitoring system is safer and quicker, and is more convenient for use.

The invention relates to an inorganic compound Li2Sn(IO3)6 as well as a preparation method and use thereof. The chemical formula of the compound is Li2Sn(IO3)6; the compound belongs to a hexagonal crystal system, the space group is P6<3>, cell parameters are that a and b are equal to 9.4589(4) angstrom respectively, c is equal to 5.1707(4) angstrom, Alpha and Beta are equal to 90 degrees respectively, gamma is equal to 120 degrees, and Z is equal to 1; crystal cell volume V is equal to 400.65(4) cubic angstrom; colorless needlelike Li2Sn(IO3)6 crystal is prepared by using a hydrothermal method. The powder frequency-doubled effect of the Li2Sn(IO3)6 crystal is 15 times of that of KH2PO4, and ultraviolet stopping side is about 304 nanometers.

The invention discloses a rubidium lithium titanium germanate compound, a rubidium lithium titanium germanate non-linear optical crystal and preparation methods and application thereof. A chemical formula of the rubidium lithium titanium germanate compound is Rb4Li2TiGe4O13; a chemical formula of the rubidium lithium titanium germanate non-linear optical crystal is Rb4Li2TiGe4O13; the rubidium lithium titanium germanate non-linear optical crystal is non-centrosymmetrical structure, belongs to the tetragonal system and has a space group P4nc, is prepared by adopting a co-solvent method. The invention further discloses the rubidium lithium titanium germanate non-linear optical crystal to application of a laser non-linear optical compound functional device, an electro-optical crystal device or a laser device. The rubidium lithium titanium germanate non-linear optical crystal provided by the invention has a relatively great non-linear optical effect, a high electro-optical coefficient anda wide transmission range, has good mechanical properties and does not deliquesce; the frequency-doubled effect is 3 to 5 times of KDP (potassium dihydrogen phosphate).

The invention discloses second-order nonlinear optical crystal material, a molecular formula of the crystal material is NaSb3F10 and a crystal space group is P63. The material is characterized in that a comparatively big second-order nonlinear optical coefficient which is capable of phase-matching is provided; large transmitted windows are provided in an ultraviolet area, a visible light area and an infrared light area; the material has good thermal stability. The synthetic method is that NaF and Sb2O3 with the metage of 2:3 of the molar ratio are added to 40 percent HF acid water solution, which is stirred until the solution is transparent, then the solution is filtered; the filtrate is placed in a thermostatic bath at the temperature of 30-50 DEG C; after 10-30 days, transparent crystal in the shape of hexagonal prism is obtained. The second-order nonlinear optical crystal material has the advantages that the operation is simple; the reaction time is short; the experiment condition is mild; the production purity is high; the crystal with good quality and big size can be generated by a simple solvent volatility method; the crystal material can be extensively applied to optics field and the fields such as dielectric, ferroelectric, pyroelectricity, piezoelectricity, etc.

Disclosed is a household Internet of things system based on a Bluetooth technology. The system comprises a household electrical appliance and a control terminal, wherein the household electrical appliance is provided with a controlled apparatus for receiving Bluetooth signals; and the controlled apparatus comprises a Bluetooth receiving apparatus and a control apparatus for controlling the household electrical appliance. The system further comprises a Bluetooth signal emission apparatus and an Internet of things service platform for providing communication interfaces for the Bluetooth signal emitter and the control terminal. The Bluetooth signal emission apparatus comprises an Internet of things application module for controlling the household electrical appliance and processing data sent by an intelligent household service platform. According to the invention, by use of the Bluetooth4.0 technology, the household Internet of things system has the advantages of wide transmission scope, low power consumption small human radiation and the like, is quite suitable for application of household Internet of things, and brings little radiation harm on household members.

The invention discloses a household intelligent rice bin. The household intelligent rice bin comprises a rice bin body, a plurality of temperature and humidity sensors, an infrared sensor, a processor and a sending module, wherein the rice bin body is provided with a rice cover through which the rice bin body is opened or closed; the plurality of temperature and humidity sensors are respectively arranged on the circumferential wall and the bottom part in the rice bin body and are used for collecting temperature data and humidity data in the rice bin body; the infrared sensor is arranged on an inner wall with a certain height in the rice bin body and is used for obtaining a rice storing signal indicating that height of rice in the rice bin body is less than the above height; the processor is connected with the infrared sensor and the plurality of temperature and humidity sensors and is used for temperature data, humidity data and the rice storing signal; and the sending module is connected with the processor and is used for sending the temperature data, the humidity data and the rice storing signal to a receiving terminal. According to the invention, the sending device is added to realize that when the stored amount of the rice in the household rice bin is insufficient, early warning is realized, so that a house holder is prompted to purchase rice in time; in addition, a merchant can know through the receiving terminal that the amount of rice stored by the house holder is insufficient in time, so that a rice purchasing scheme is provided to the house holder first time.

The invention discloses a middle-infrared nonlinear optical crystal material. The chemical formula of the crystal material is KBi4F13, the crystal space group of the material is I-4, and cell parameters are characterized in that a is 0.92027(19)nm, b is 0.92027(19)nm, c is 0.62589(13)nm, alpha = beta = gamma = 90DEG, and Z is 2. The invention also provides a hydrothermal preparation method of the crystal material. The middle-infrared nonlinear optical crystal material prepared in the invention has a phase matching second harmonic generation (SHG) effect, and a Kurtz powder frequency multiplication test result shows that the powder frequency multiplication effect of the crystal material is same to that of potassium dihydrogen phosphate (KDP); the laser damage threshold of the powder is 120MW / cm<2>, and is above 23 times the laser damage threshold of present commercial middle-infrared nonlinear optical crystal materials AgGaS2; the middle-infrared nonlinear optical crystal material has a wide permeable range in visible light region and middle-infrared light region; the middle-infrared nonlinear optical crystal material has the advantages of no crystal water, stability to air, and good heat stability; and monocrystalline materials can be prepared through the hydrothermal method.

The invention discloses mid-infrared nonlinear optical crystalline materials, a preparation method therefor and an application of the mid-infrared nonlinear optical crystalline materials. Chemical formulae of the mid-infrared nonlinear optical crystalline materials comprise RbCdI3.H2O and CsCdI3.H2O, and both crystal space groups of the chemical formulae are Pc. During preparation, the two kinds of nonlinear optical crystalline materials, i.e., RbCdI3.H2O and CsCdI3.H2O can be obtained through dissolving RbBr(CsBr) and CdI2 in a mixed solution of acetone and water and carrying out preparing byadopting a solution method. The two kinds of nonlinear optical crystalline materials disclosed by the invention have a relatively high phase-matchable second-order nonlinear optical effect, have relatively wide light transmitting windows in a visible light zone and an infrared light zone and have the advantages that the laser damage threshold is relatively high, the synthesis method is simple inoperation, the experimental conditions are moderate, the product purity is high, the nonlinear optical crystalline materials are stable to air, and the like, thereby being capable of being extensivelyapplied to the field of optics.