158results about How to "Achieve dimming" patented technology

A Lamb wave device according to an embodiment of the present invention includes a piezoelectric function member and a supporting member. The piezoelectric function member has a piezoelectric substrate, IDT electrodes, and a cutout portion. The IDT electrodes are disposed on the upper surface of the piezoelectric substrate. The cutout portion is formed in the piezoelectric substrate, and includes a step face provided between the upper surface and the lower surface of the piezoelectric substrate. The supporting member has a supporting surface and a cavity. The supporting surface is bonded to the lower surface of the piezoelectric substrate, and is exposed in the cutout portion toward the upper surface of the piezoelectric substrate. The cavity is formed adjacent to the supporting surface, and faces the IDT electrodes through the piezoelectric substrate.

The present invention provides a cosmetic applicator that allows a cosmetic material based on solid fine powder to transfer roughly uniformly onto the apical surface of the brush, prevents the cosmetic material from scattering from the brush, and causes the cosmetic material to attach roughly uniformly when applied to the skin, and said cosmetic applicator conforming to the present invention is a cosmetic applicator for application of apply a powdery cosmetic material containing fine powder, which includes a handle part and a brush part constituted by a bristle material implanted on the aforementioned handle part, wherein said cosmetic applicator is characterized in that the hairs of the aforementioned brush part extend upward from the aforementioned handle part, and the distal end of the hairs form a horizontally shaped outer periphery with respect to the aforementioned handle part, from which outer periphery a shape gradually concaving toward the center axis of the brush part is formed.

The invention relates to a novel dimming device for LED lamps, which can adjust the dimming of LED lamps in stages through a power switch, and the LED lamps can be cyclically changed according to a predetermined program and work in multiple working states. The LED lamp dimming device of the present invention solves the technical problem of dimming with common switches, and can use common switches to dim LEDs in stages. In addition, the present invention can also use an external DC signal source to perform step-by-step dimming of LEDs. According to the present invention, people can adjust the brightness of the LED lamp according to needs, which not only facilitates people's life but also effectively saves energy.

A surface acoustic wave device includes a high acoustic velocity film in which a transversal wave propagates at a higher acoustic velocity than in a ScAlN film laminated on a substrate made of silicon or glass. The ScAlN film is laminated on the high acoustic velocity film, and IDT electrodes are laminated on the ScAlN film.

The invention discloses an LED switch power supply capable of dimming, which comprises a filtering rectification circuit, a passive power factor correction circuit, a voltage transformation rectification circuit, a voltage-stabilizing circuit, a current sampling circuit, an optical coupling transmission feedback circuit, a switch control circuit and a dimming circuit. An input alternating current signal firstly passes through the filtering rectification circuit and the passive power factor correction circuit and then is output. The output signal is converted by the voltage transformation rectification circuit, wherein one converted signal enters the current sampling circuit to be sampled by virtue of the voltage-stabilizing circuit and is then output to the LED light source, and the other converted signal enters the switch control circuit by virtue of the optical coupling transmission feedback circuit to control the on and off of the LED light source. The switch control circuit receives a signal output by the optical coupling transmission feedback circuit and then outputs a signal to the passive power factor correction circuit. The dimming circuit is respectively connected with the passive power factor correction circuit and the current sampling circuit, and comprises a first dimming resistor, a second dimming resistor, a third dimming resistor, a fixed resistor, a first capacitor and a first optical coupler.

The invention relates to a bulb, and particularly relates to a Bluetooth mobile phone control-based LED (Light Emitting Diode) color-changeable bulb which comprises a bulb body and an LED color-changeable control module, wherein the LED color-changeable control module is arranged in the bulb body and comprises a Bluetooth communication module, a singlechip control module, an LED driving module, a power supply module and an LED light emitting unit. The Bluetooth mobile phone control-based LED color-changeable bulb has the beneficial effects that (1) the color-changeable bulb is capable of receiving Bluetooth signals sent by mobile phones and improving a lamp control manner of people; (2) different colors and different luminance can be adjusted according to different places so that the requirements of the places are satisfied; (3) room lighting devices can be conveniently mounted and allocated by changing light sources without changing the lines of the original electric appliances; and (4) a networking function is provided so that a user can carry out dimming control on a plurality of color-changeable bulbs through a Bluetooth mobile phone.

The invention relates to the technology of a switch power supply and an electronic circuit, in particular to an LED (Light-Emitting Diode) illumination dimming device, which supplies power to an LED light supply module through an H-bridge type circuit and uses matrix net-type wiring for the LED light supply module. According to the main technical scheme, the H-bridge type circuit consists of four switch units; the LED light supply module is used as a load of a common bridge arm; and a power supply module is connected with the both ends of an H bridge, so as to realize cross power supply of the LED light supply module. The LED illumination dimming device has the beneficial effects as follows: the power supply of the LED illumination device is realized in a power supply manner of the H bridge, and the functions of the former two power supplies can be realized by only using one power supply, so that the quantity of the power supplies is reduced by 50% and the energy is greatly saved; and meanwhile, the matrix net-type wiring of LED lamp bulbs can be realized, so that the wiring layout of the LED light supply module is simpler, easier and more reliable. Therefore, the production and installation process of the LED illumination device can be greatly simplified, and the cost can be effectively reduced. The LED illumination dimming device is particularly applicable to the LED illumination device with various color temperatures.

An LED lamp with light and the color capable of being adjusted comprises a rectifying and filtering circuit, a constant-current control circuit, an LED light source and a PWM output module, wherein the rectifying and filtering circuit is used for rectifying and filtering an input alternating current to form a direct current; the constant-current control circuit is connected with the output end of the rectifying and filtering circuit and used for providing a constant current for LED lamp strings; the LED light source comprises at least two LED lamp strings, the colors of all the LED lamp strings are different and the LED lamp strings are connected in series, and each LED lamp string is connected with a switch circuit in parallel; the PWM output module is provided with a first signal output end and a plurality of second signal output ends, the first signal output end is connected with the constant-current control circuit so as to adjust the luminance of the LED light source, and each second signal output end is connected with one switch circuit so as to adjust the current flowing through the corresponding LED lamp string. According to the LED lamp, light adjustment and color adjustment of the LED lamp can be separated, the LED lamp is simple in circuit and easy to control, and the light and the color can be adjusted to be more fine and smooth.

The invention discloses an LED power supply with no-load and light-load protection output and capable of receiving phase-cut dimming stably, which comprises a balancing resistor, a high-voltage dimming signal detecting circuit, a capacitor array with controlled volume, a system power supply, a low-voltage dimming signal detecting circuit, a voltage-PWM conversion circuit, an output overvoltage and undervoltage protection circuit, a voltage or PMW dimming constant-current source, and a capacitor array output control circuit, wherein the capacitor array with the controlled volume is controlled by the capacitor array output control circuit to match the balancing resistor consisting of NTC thermistors, so that the power of the power supply forms a certain direct proportion relation with filtering capacitance; a phase-cut dimmer is in a good phase-cut state, and a dimming signal is generated by the dimming signal detecting circuits to control an LED constant-current source so as to realize the LED dimming of the LED power supply; and the overvoltage and undervoltage protection circuit is set at the output of a constant-current power supply, so that LED hot plug and no-load and light-load protection are realized. Therefore, the LED power supply has great application prospects in the aspect of LED dimming.

The invention discloses a forced constant flow source dimming LED (Light Emitting Diode) lamp comprising an alternating current (AC) power source, an AC-DC (Direct Current) rectifier filter circuit, a DC-DC constant-voltage circuit, a DC-DC constant-current driving circuit, a PWM (Pulse Width Modulation) dimming signal generator, an LED load and a load short-circuit protection circuit, wherein the AC-DC rectifier filter circuit is used for rectifying and filtering an AC voltage output by the AC power source and outputting a DC voltage to the DC-DC constant-voltage circuit for voltage stabilization so as to output a constant DC voltage to the DC-DC constant-current driving circuit; the DC-DC constant-current driving circuit is used for carrying out constant-current transformation on the DC voltage output by the DC-DC constant-voltage circuit to output a constant current to the LED load and is also used for dimming the LED load under the action of a PWM signal output by the PWM dimming signal generator to dim a forced constant-current source of the LED load; the load short-circuit protection circuit is connected between the LED load and the PWM dimming signal generator and sends a control signal to the DC-DC constant-current driving circuit when detecting that the LED load is in a short-circuit state, so that the output of the constant current to the LED load is stopped.

The invention discloses an intelligent universal light modulator which comprises a main supply interface, a load interface, a light modulation circuit, a current zero crossing point detection circuit, a voltage zero crossing point detection circuit and a controller. The light modulation circuit is sued for controlling breakover time and interval within each mains supply period through the controller so as to achieve regulation on a load device. The current zero crossing point detection circuit is used for acquiring and inputting a current zero crossing point signal on a mains supply live wire to the controller. The voltage zero crossing point detection circuit is used for acquiring and inputting a voltage zero crossing point signal into the controller. The controller is used for analyzing the current zero crossing point signal and the voltage zero crossing point signal and judging whether a device connected to the load interface is a capacitive device or a sensitive device, controlling the light modulation circuit in a leading edge phase-cut mode when the device connected to the load interface is the sensitive device and controlling the light modulation circuit in a lagging edge phase-cut mode when the device connected to the load interface is the capacitive device.

The invention relates to an LED (Light Emitting Diode) drive circuit capable of adjusting light and color temperature. The LED drive circuit is adopted for driving an LED lighting device which consists of N paths of LED string lights, wherein N is more than or equal to 2. The LED drive circuit comprises a constant current generating circuit, a buffer circuit, a selection circuit and a control circuit. According to the light adjusting and color temperature adjusting demand of the LED lighting device, a corresponding control signal is generated by the control circuit to control the states of the constant current generating circuit and the selection circuit. A direct current input voltage and the control signal are received by the constant current generating circuit, so that a constant output current is generated to drive the LED lighting device. The buffer circuit is connected to the output end of the constant current generating circuit, so that the output voltage which is output by the constant current generating circuit is limited. The selection circuit is connected with N paths of the LED string lights, so that the corresponding LED string light is selected according to the control signal and driven by the output current.

A high-frequency module according to the present embodiment includes a substrate, a circuit board, and a waveguide. The substrate has an input-output portion for high-frequency signals on one surface thereof. The circuit board has a dielectric waveguide line with its end face exposed, and is placed on the one surface of the substrate such that a virtual plane extending beyond the end face is intersected by the one surface of the substrate. The waveguide has openings at ends thereof, in which one of the openings is connected to the end face of the dielectric waveguide line, and the other opening is connected to the input-output portion of the substrate.

The invention relates to an LED three-dimensional light source, which comprises a lamp body, a base fixedly connected with the bottom of the lamp body and a lampshade fixedly connected with the top of the lamp body, and generates light of different color temperatures by using LEDs with two or more color temperatures. The lamp body comprises a heat dissipation seat with a lamp post, and a light source plate which is fixedly connected with the LED, matched with the lamp post and made of a bendable material; and the inside of the base is provided with a driving power supply. The LED three-dimensional light source has the advantages of convenient production and manufacture, large luminous angle, capability of dimming and adjusting color, safe use and stable performance.

The invention discloses an IoT (Internet of Things) lamp energy-saving controller based on a ZigBee technology. The IoT lamp energy-saving controller is characterized by comprising an AC / DC (alternating current / direct current) power supply module connected with commercial power, wherein the AC / DC power supply module is respectively connected with a first DC / DC (direct current / direct current) converting module, a second DC / DC converting module and a third DC / DC converting module, the first DC / DC converting module supplies electricity to a ZigBee module, the ZigBee module is in communication connection with an MCU (micro control unit) control module, the second DC / DC converting module supplies the electricity to the MCU control module, and the MCU control module is connected with a first signal output interface. The IoT lamp energy-saving controller based on the ZigBee technology provided by the invention has the advantages that the IoT lamp energy-saving controller can be regulated and controlled by mobile phone client software, and the LED (light emitting diode) switching on / off and the 0-100 percent brightness multistage regulation and control can be realized.

An optical light guide member according to the present invention includes a tubular portion in which an annular light incident end surface for entering light is formed on a one end thereof, a funnel-shaped expanded section having a one end side thereof continuously extending to the other end of the tubular portion, a flat section which has on a front side thereof a light exit surface extending along a flat plane intersecting an axis of the tubular portion, and which extends continuously to the one end side of the funnel-shaped expanded section, and a plurality of light deflection elements formed at least on the back side of the flat section each for altering the traveling direction of the light. An incident light on the tubular portion from the light incident end surface is emitted with a uniform intensity distribution from the light exit end surface.

An object of the present invention is to provide a liquid crystal display device capable of uniformly irradiating the entire liquid crystal panel with light (that is, capable of preventing light irradiation non-uniformity that can be recognized by viewers), without excessively increasing the number of point light sources (LEDs). In the liquid crystal display device of the present invention, in a backlight substrate region where a plurality of point light sources (L1 to L8) are disposed in a grid arrangement pattern, a position which is within a virtual rectangular region surrounded by four adjacent point light sources, and which is furthest from each of the adjacent point light sources is defined as an anisotropy reference position (G1 to G3). Light emitted from the point light source closest to the anisotropy reference position is selectively diffused in a direction toward the reference position (G1 to G3) by the anisotropic optical member (82), thereby realizing the optical anisotropy is that direction.

The invention discloses an LED dimming drive system. The drive system comprises a PFC (power factor correction) level and an LED driver level, wherein the LED driver level comprises an isolated converter and a controller. The controller receives a dimming signal to perform dimming on a backlight LED group and controls the output current of the isolated converter at the same time. Through the invention, the control system is simplified, three-level control is simplified into two-level control, the system components are reduced, and the efficiency is improved.

The invention discloses a light adjusting system for an LED (Light Emitting Diode) lighting fixture. The light adjusting system comprises an LED lighting fixture, a control module and a traditional switch, wherein the LED lighting fixture is electrically connected inside a main circuit, the control module is arranged on the LED lighting fixture, the traditional switch is used for controlling the make-and-break of a circuit of the LED lighting fixture connected inside the main circuit; the LED lighting fixture comprises a driving power source and an LED light source, wherein the driving power source is electrically connected inside the main circuit, and the LED light source is electrically connected on the driving power source and is driven by the driving power source; a field-effect tube is arranged between the control module and the LED lighting fixture; a G pole of the field-effect tube is electrically connected with the control module; a D pole of the field-effect tube is electrically connected with the driving power source; and a S pole of the field-effect tube is electrically connected with the LED light source. The control module integrating multiple control modes is adopted in the light adjusting system and is matched with the low-loss field-effect tube to realize the light adjustment function of the LED lighting fixture; and the light adjusting system is independent of a light adjusting interface provided or not provided by the driving power source of the LED lighting fixture, is suitable for the most of LED lighting fixtures, has concise structure and high generality and is low in cost.

The invention provides a method for adjusting light and colors of an LED lamp. The LED lamp and external intelligent equipment are in signal connection in a Bluetooth wireless communication manner; the brightness of the LED lamp is controlled by controlling the on and off time of the LED lamp according to control information, and the lighting chromaticity of the LED lamp is controlled by not changing the voltage and the current while the current effective value of the LED lamp is changed. A universal Bluetooth technology is adopted, LED light adjustment and DIY color adjustment are realized in the way that a Bluetooth assembly on the intelligent equipment is communicated with a control circuit of the LED lamp to generate a duty ratio PWM wave signal to control an LED driving circuit. The invention further provides a light and color adjustable LED lamp system, mobile intelligent switching, light adjustment and color temperature adjustment of the lamp are realized, the tedious operation of fixing a wall switch is avoided, particularly in the evening, the problem that a person has no alternative but to get up to switch off the lamp while lying on the bed is solved, and convenience and intelligence are brought for life and work.

The invention discloses a high-power dimming electrodeless lamp. The high-power dimming electrodeless lamp comprises an anti-electromagnetic interference filter, a bridge rectifier module, an active power factor corrector, a half-bridge inverter oscillatory circuit, a power output device, a starting controller, a high-frequency coupler, a dimming circuit and an HB0809 integrated circuit, wherein the half-bridge inverter oscillatory circuit is used for converting a direct current voltage into a high-frequency alternating voltage; the power output device is used for supplying output power to the half-bridge inverter oscillatory circuit when the half-bridge inverter oscillatory circuit works; the starting controller is used for controlling the turning on and turning off of the electrodeless lamp; the high-frequency coupler is used for coupling electric energy of the active power factor corrector and the power output device to the lamp tube of the electrodeless lamp; the dimming circuit is connected with an externally connected dimming control circuit; when the externally connected dimming control circuit supplies a 0 to 10-volt direct current (VDC) dimming control voltage signal to the dimming circuit, the dimming circuit works and then converts the alternating voltage into a 18-volt direct voltage; and the HB0809 integrated circuit is connected to the half-bridge inverter oscillatory circuit and used for controlling the alternately turning on and turning off of a first metal oxide semiconductor (MOS) tube and a second MOS tube in the half-bridge inverter oscillatory circuit to set working frequency, ignition time and ignition frequency. By a dimming electrodeless lamp circuit, a dimming function of the high-power electrodeless lamp can be realized.

The present invention discloses a smart device display method. The method comprises: after a smart device enables a preset dimming function, generating an eye shield on a display interface of the smart device; according to an eye protection level selected by a user, obtaining display parameter information corresponding to the eye shield; and according to the display parameter information, performing dimming processing on the eye shield. The present invention further discloses a display system for the smart device. According to the display method and system provided by the present invention, the dimming is performed on the display interface of the smart device, and compared with the dimming that can be performed on certain applications only, the dimming function can be applied to the whole smart device, thereby reducing impairment to vision caused by display light on the display interface of the smart device.

The present invention discloses an oil leaching and extraction assembly capable of repeated separation, which may include an upper rack, a leaching barrel, a separation device, a filter cylinder, a milling device and a material claiming device and a liquid renewal duct and the liquid outlet pipe are respectively provided on the upper and lower part of the leaching barrel. The separation device may include a separation drum and the liquid outlet pipe goes through the separation drum and is connected to an oil tank through the check valve. And a separation hole is provided on the part of liquid outlet pipe locating in the separation drum. For the part where separation drum is under the liquid renewal duct, a electrical heating separation block is provided with. A recycling tank plate whose forms a recycle bin with its left side board is provided on the separation drum. A circulating pump is provided in the recycle in and the circulating pump is connected to the liquid renewal duct. With the design of the liquid outlet pipe going through the separation drum and the electrical heating separation block evaporates the solvents in the liquid outlet pipe from the separation hole and the solvents are collected at the same time. The solvents may flow in the leaching barrel again after the collection process to recycle the solvents. And the circulation flow of the leaching liquid can be heated and separated for several times to ensure the quality of the oil.

The invention relates to an LED dimming sensor which comprises a microprocessor module as well as a microwave collection module, an infrared collection module, an illuminance collection module, a bus communication module used for receiving a remote control command and a dimming module used for LED brightness adjustment, which are connected with the microprocessor module, wherein an optoelectronic isolation circuit is arranged between the microprocessor module and the dimming module. The dimming sensor can be compatible with a traditional human body sensing lamp to realize the dimming and the switching control of LED light sources widely applied at present and has the advantages of more reliable and stable detection effect, effective avoidance to interferences and good energy saving effect; meanwhile, the sensor also can be used as a node of a D_BUS control system and coordinates to work with other modules in the system through the bus communication circuit so as to form a complicated control system, make up the deficiency of single scene control of the traditional human body sensing lamp and achieve the effect of outputting any scene.

The invention discloses a household network intelligent test and control machine, which is composed by a household network access embedded type apparatus TINI, a power source module, a six-path 50Hz high power alternating current power supply output module, a commercial power over 0 detection module, an infrared ray transmission module and an infrared ray reception module. A user is connected with the Internet via an Ethernet interface of the TINI, Java language is applied on the TINI system to establish a Web server circumstance so that the user can remotely monitor the household apparatuses via the Internet. The invention is simple in structure, low in cost and convenient for bus expansion and maintenance, the user terminal can conveniently realize remote operations via the Internet, such as automatic meter reading (water meter, ammeter and gas meter), and secure prevention of leakage of fuel gas and illegal invasion and control of appliances.

Provided is a lighting device which can be dimmed and subjected to change in color temperature of the color of emitted light in accordance with a dimming level. To the lighting device, alternating-current power that is phase-controlled is supplied. The lighting device is provided with a light-emitting-part array and a switching means. The light-emitting-part array is constituted of a plurality of light-emitting parts, which are two or more kinds of light-emitting parts having different colors of emitted light. The switching means switches an electrical connection relationship between the light-emitting parts included in the light-emitting-part array so as to change a ratio between the number of light-emitting parts inserted in series to an electrical power supply channel and the number of light-emitting parts included therein for each color of emitted light in accordance with a voltage supplied to the light-emitting-part array.

The invention relates to intelligent glass based on electrical-response liquid crystal materials and a light adjusting method thereof. The intelligent glass comprises two pieces of opposite glass base plates, carrier liquid crystals filled between the two glass base plates and dye molecules mixed in the carrier liquid crystal. The two glass base plates are electrically connected with two poles of a power supply module respectively. The dye molecules form a disorder array parallel to the glass base plates under the action of the carrier liquid crystals. According to the intelligent glass based on the electrical-response liquid crystal materials and the light adjusting method thereof, the dye molecules and the carrier liquid crystals are mixed, the obtained mixture is filled into the two glass base plates capable of being applied to voltage, the dye molecules are driven to deflect by driving voltage controlling the steering direction of the carrier liquid crystals, and blocking and passing of visible light is adjusted, so that the purpose of adjusting the light and shade of the intelligent glass is achieved. The intelligent glass based on the electrical-response liquid crystal materials and the light adjusting method thereof can be applied to the field of building and home life.

A high-frequency module according to the present embodiment includes a substrate, a circuit board, and a resonator. The substrate has an input-output portion for high-frequency signals formed on one surface thereof. The circuit board includes a dielectric waveguide line with its end face exposed, and is placed on the one surface of the substrate such that a virtual plane extending beyond the end face is intersected by the one surface of the substrate. The resonator includes input-output end portions for high-frequency signals at ends thereof, in which one of the input-output end portions is connected to the end face of the dielectric waveguide line, and the other thereof is connected to the input-output portion of the substrate.

The invention discloses a programmable automatic constant LED illumination controller and a control method thereof. The controller comprises a remote controller, an information collector, a lighting controller and a dimming driving module. The method comprises the steps that the remote controller sends a dimming command to the lighting controller; the information collector collects external illumination brightness information and sends the information to the lighting controller; the lighting controller receives the dimming command, and generates a lighting control signal according to the dimming command and / or the external illumination brightness information; according to the lighting control signal, the dimming drive module is controlled to achieve LED dimming. The controller and the control method provided by the invention can conveniently change a dimming program (parameter) according to the actual needs of a user, collects the ambient brightness information and generates the lighting control signal, thereby realizing a function of automatically adjusting the LED lighting effect.