112results about How to "Easy to adjust light" patented technology

The invention relates to a frequency-modulation electronic ballast for a dimmable fluorescent lamp, comprising an EMC filter rectifier circuit, an input voltage sampling circuit, a PFC booster circuit, a half-bridge driver circuit, a DC-AC half-bridge inverter circuit, an ignition circuit, a microprocessor and a lamp current / voltage sampling circuit; the EMC filter rectifier circuit is connected with the PFC booster circuit; the PFC booster circuit is connected with the half-bridge driver circuit and the microprocessor; the half-bridge driver circuit is connected with the DC-AC half-bridge inverter circuit; the DC-AC half-bridge inverter circuit is connected with the ignition circuit; and the lamp current / voltage sampling circuit is connected with the microprocessor. The invention has the following advantages: the electronic ballast dose not use special integrated control circuit but universal microcontroller so as to perform the functions thereof through pulse frequency modulation dimming method, thus the whole structure is simple, and various dimming interfaces can be expanded conveniently to perform digital dimming.

The invention discloses a U-shaped soft light shadowless studio system, which comprises a main studio structure and a lighting system, wherein the main studio structure comprises an upright surface and a top surface; the upright surface is a U-shaped curved surface; the top surface covers the upper part of the upright surface; spreading soft light cloth is arranged at the inner side of the upright surface and the lower part of the top surface; the lighting system comprises a plurality of soft light lamps with adjustable brightness; and the soft light lamps are evenly distributed on the upright surface and the top surface. The U-shaped soft light shadowless studio system is relatively comprehensive in light distribution, low in demands on buildings, simple in structure, low in cost, and good in optical shadow elimination effect; the site is saved; a late shadow elimination treatment does not need to be carried out after shooting; manpower is saved; the U-shaped soft light shadowless studio system is convenient to dim and efficient to work; light distribution parameters can be memorized; standardization of a shooting operation is easy to implement; and various shooting backgrounds can be highly restored.

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.

A bulb type fluorescent lamp apparatus is disclosed to adjust the light under a low illumination without nonuniform lighting. The bulb type fluorescent lamp apparatus comprises: a bulb type apparatus main body disposed on the lamp head (4), which is supplied with AC power under the control of wall switch (SW); a main body (1) of the fluorescent lamp arranged in the apparatus; a light emitting diode circuit (LED) disposed in the main body of the apparatus; and a control circuit (AC power supply trip time detecting circuit (ACPODC) and inverter oscillation stopping circuit (IOSC)), detecting the AC power supply state controlled by the wall switch (SW), and controlling the fluorescent lamp main body and the light emitting diode circuit (LED) based on the power supply state.

A light automatic adjusting flash lamp circuit includes a flash lamp charge unit, a flash start unit, a flash lamp tube, a light test unit, an integrating circuit and a flash light volume control unit, among which, the flash lamp charge unit is used to control the charging action of a master capacitor, the flash start unit starts the lamp to illuminate the shot object, the light test receives the reflecting light of the shot object and converts the energy into electric signals, the integrating circuit receives said electric signals and regulates resistance value of the integrating circuit, when its volume value reaches to the exposing standard, the control unit turns off the lamp.

The invention discloses an intelligent regulation and control polychromatic light LED plant growth lamp system and a regulation and control method thereof, and relates to the technical field of lighting. The intelligent regulation and control polychromatic light LED plant growth lamp system comprises an upper computer, a PWM controller, a wireless transmitter, a wireless transceiver, a photosensitive sensor, a PWM dimming driver, an LED three-color lamp tube and a voltage stabilization direct-current power source; the PWM dimming driver is connected with the voltage stabilization direct-current power source, the LED three-color lamp tube is connected with the PWM dimming driver which is connected with the PWM controller, and the PWM controller is controlled by the wireless transmission upper computer; the LED three-color lamp tube comprises an aluminum alloy shell, an aluminum base lamp panel and a transparent lampshade, a radiating stricture is arranged on the aluminum alloy shell, and the aluminum base lamp panel is arranged between the aluminum alloy shell and the transparent lampshade; and the aluminum base lamp panel is provided with a plurality of LED lamp beads which comprise red-light LED lamp beads, blue-light LED lamp beads and blue-violet light LED lamp beads. According to the design, real-time regulation and control and remote and automatic control are easy to achieve, adjusting is convenient, rapid and accurate, dimming of polychromatic light is achieved, the radiating effect is good, and multiple requirements for plant light supplementing are met.

The invention relates to a dimming technology of an underwater lamp of an underwater robot, in particular to a dimming system for remotely dimming the brightness of an underwater lamp arranged on an underwater robot by adopting a digital transmission technology. The dimming system comprises I / O acquisition and output modules, a main control computer and underwater lamp dimming devices and is characterized in that the main control computer receives a control signal from the I / O acquisition and output module on the water surface through an Ethernet and transmits the processed control signal to the I / O acquisition and output module underwater through an optical fiber, the I / O acquisition and output module underwater outputs a power control signal and a light dimming signal to the modularly arranged underwater lamp dimming devices, and the control to the light is realized through a control program in the main control computer. The system has the characteristics of modularization, safe interface and simple design, can realize the continuous control to the light of the single-lamp in the whole range as well as the remote light control and is provided with the interference-free dimming devices.

By diverting a small amount of current from a string of LED(s) powered by a LED driver at low current levels in a process of dimming the LED string, performance of the LED string light emission is improved.

The invention relates to dimming driving device and a dimming lamp with the dimming driving device. The dimming driving device comprises a light source drive circuit and is characterized by further comprising a Microprogrammed Control Unit (MCU) and a temporary power supply circuit, wherein the temporary power supply circuit is used for supplying electricity to the MCU after the light source drive circuit stops supplying electricity. The MCU comprises a current detection module, an analysis processing module and a storage module, wherein the current detection module is used for obtaining breakover / cutoff signals of the light source drive circuit and transmitting to the analysis processing module. The storage module is used for storing a curing program for gradual light source brightness and darkness change and status information about light source brightness constancy. The analysis processing module obtains the breakover / cutoff signals of the light source drive circuit, analyzes and processes the curing program for the gradual light source brightness and darkness change or the status information about light source brightness constancy, wherein the curing program for the gradual light source brightness and darkness change or the status information about light source brightness constancy are stored by the storage module, to generate light source brightness regulating signals, and transmits the light source brightness regulating signal to the light source drive circuit. And the light source drive circuit regulates the brightness of the light source according to control signals.

A light-path regulation mechanism of projection display consists of a light valve being set in interval way to light splitter and a regulation unit. It is featured as forming said regulation unit by regulation base being set between said light valve and said light splitter as well as fixing component set on said base and used to vary angle of said light valve then enabling to use such simple mechanical structure to vary position and angle between light valve and regulation base.

The invention discloses an all-fiber wind measurement laser radar apparatus based on an asymmetric M-Z interferometer and a method. On one hand, an asymmetric M-Z interferometer formed by a 2*2 fiber coupler and a 3*3 fiber coupler is used as a frequency discriminator of a wind measurement laser radar; compared with Fabry-Perot interferometer, the M-Z interferometer has advantages like high transmittance and large detectable wind speed dynamic scope; compared with traditional space optical profile type M-Z interferometer, the M-Z interferometer provided by the invention has advantages like strong anti-interference capability, compact structure, stable system and convenient light modulation etc.; compared with symmetrical M-Z interferometer based on 2*2 fiber coupler, there is no need to lock the laser at the halfway point of the M-Z interferometer, therefore, the measurement sensitivity can be raised by reducing the free spectrum spacing of the M-Z interferometer; on the other hand, the demodulation method of differential intersect multiply by is adopted, and the energy injected into the MZI is normalized, therefore, the solution is not sensitive to the fluctuating of the laser energy.

The invention discloses a light adjustment device and method of an LED (Light Emitting Diode) high-voltage direct current centralized power supply system. The light adjustment device comprises a power source management module, a direct-current power supply module and N electric current adjustment modules, wherein N is greater than or equal to 1, the power source management module is connected with the control signal receiving end of the direct-current power supply module, the input ends of the N electric current adjustment modules are respectively connected with the positive output end of the direct-current power supply module, the negative output end of the direct-current power supply module is grounded, and the output end of each electric current adjustment module is connected with a load. The light adjustment device has the advantages that the unified light adjustment of multiple loads is realized by adjusting the output voltage value of the direct-current power supply module; and the independent light adjustment of each LED load is realized by adjusting sawtooth signals (vsaw1) in each electric current adjustment module. When a multi-level driving technology is adopted by the light adjustment device, the light emitting efficiency of LEDs is improved, and the long service life of the LED loads is ensured.

The invention relates to an automatic horizontal dimming system for automotive headlamps and a dimming method. The automatic horizontal dimming system comprises an automobile height sensor and two direct current motors, wherein the automobile height sensor is used for detecting the inclined posture of an automobile body; the direct current motors are used for controlling the irradiation direction of the headlamps; the two direct current motors are both provided with a driving control module; a signal output end of the automobile height sensor is connected with a signal input end of the driving control module; the signal output end of the driving control module is connected with the direct current motors in a driving mode; dimming shafts are arranged on rotating shafts of the two direct current motors; end parts of the dimming shafts are respectively connected with dimming brackets of two headlamps of the automobile; and light sources of the headlamps are arranged on the dimming brackets. Compared with the existing dimming system, the automatic horizontal dimming system has the advantages that one controller and one automobile height sensor are saved, high-cost stepping motors are replaced by the low-cost direct current motors, the system structure is more simple, the cost is greatly lowered, and the problems of complex structure and high cost of the existing automatic dimming system are solved.

The invention discloses a remote and local coordinated control method for an intelligent switch of an incandescent lamp. The remote and local coordinated control method comprises the following steps of building an intelligent dimming switch system of the incandescent lamp; making the intelligent dimming switch system of the incandescent lamp powered on, and initializing the timer; making the intelligent dimming switch system of the incandescent lamp enter main loop, processing series port data, and performing remote dimming according to the series port data of communication between a mobile phone APP and the intelligent dimming switch system of the incandescent lamp; scanning a key by the intelligent dimming switch system of the incandescent lamp, judging a key state, and performing local dimming according to the key state; recording a switch lamp mark value and a brightness glass mark value in the intelligent dimming switch system of the incandescent lamp; transmitting the switch lamp mark value and the brightness glass mark value to the mobile phone APP through a serial port; reading the switch lamp mark value and the brightness glass mark value after power on again during power failure; and adjusting a switch lamp state and brightness class of the incandescent lamp according to the switch lamp mark value and the brightness glass mark value. By the remote and local coordinated control method, the switch can be controlled locally and remotely.

The current invention relates to a LED driver (10) for driving at least two LED strings (131, 133) comprising: a dual output power converter (103) for converting an input voltage (Vin) into two different output voltages for driving two sets of said at least two LED strings (131, 133), a controller (107) for controlling the dual output power converter (103) based on at least one input set point, the dual output converter (103) comprising a switched capacitor converter comprising a plurality of switches, a plurality of capacitors, the outputs of the dual output power converter (103) being connected to internal nodes of the dual power converter (103), the controller (107) being further adapted to deliver PWM output control signals for driving the switches, the duty cycle of which being a function of said at least one input set point. The invention also relates to a lighting system (1) comprising such a driver (10).

The invention provides a device for supplying a power supply loop for a control unit. The device comprises an alternating current input power, the control unit and a loading device, wherein the input end of the control unit is connected with an alternating current first end; the loading device comprises a rectifying circuit, a bypass control circuit and a by-pass switch, and the rectifying circuit is used for rectifying an output signal of the control unit; the bypass control circuit is used for detecting an electric signal in the loading device to generate detection voltage and generating a bypass switch control signal according to the detection voltage; when the by-pass switch responding to the bypass switch control signal is effective, the by-pass switch is switched on, so that the alternating current input power, the control unit and the by-pass switch can form a conducting loop; when the by-pass switch responding to the bypass switch control signal is noneffective, the by-pass switch is switched off, so that the conducting loop is disconnected. The third port of the control unit and an additional conducting wire are not needed, so that the device is beneficial to simplification of the circuits, reduction of the complexity degree of practical engineering construction, and reduction of the cost.

The invention relates to a one key type brightness adjusting device. The device comprises: a brief power supply circuit, a control unit, a detection circuit and a driving circuit. An input terminal of the control unit is connected with the detection circuit and an output terminal is connected with the driving circuit. The control unit receives a sampling signal from the detection circuit, processes, and then outputs a control signal to the driving circuit and controls so as to adjust light source brightness. Through using the device, without changing switches frequently, the needed brightness can be selected. It is more convenient to control. During installing and using, original electric appliance wiring does not need to be reconstructed, which brings great convenience for a user. And costs can be substantially reduced.

A lighting device comprises a light source defining a central axis and comprising at least two mutually independently operable lighting elements. The lighting device further comprises a rotatable deflective member rotatably mounted about said axis, and a fixed deflective member fixedly mounted on said axis and comprising at least two mutually differently deflective portions which each are associated with a respective lighting element. The lighting device of the invention enables various operation modes, like light beam rotation can rotate, jumping of the light beam from one location to another by a sequence of switching on and off one or more of the at least two lighting elements, or in that it can be dimmed or boosted, for example dimmable in steps by a sequence of one by one switching off the lighting elements.

The invention discloses an assembly method and light adjusting method of a modular LED lamp. The assembly method of the modular LED lamp comprises the following steps of: step 1, assembling an LED illumination module: inserting a lamp panel in a shell insertion slot in a shell in the manner that the slope of the lamp panel faces forwards to enable stationary contacts on the lamp panel to be in contact with elastic contacts in the shell insertion slot, and connecting an end cap to the end of the shell in an inserting manner to seal the outer end of the lamp panel to complete the assembly of the LED illumination module; and step 2: connecting a base with the LED illumination module through a supporting rod. The assembly method and the light adjusting method of a modular LED lamp are easy to implement, and convenient for light adjustment.

The invention discloses an LED light and color regulation method and system. The system comprises an upper computer, a main communication module, a main controller, a light control system module and an LED lamp array module. The upper computer generates PWM regulation data and transmits the PWM regulation data to the light control module, the light control module generates the PWM wave to controlan LED lamp array for light and color regulation, wherein the PWM regulation data is calculated and obtained through adoption of the genetic simulated annealing algorithm. The genetic simulated annealing algorithm is applied to the optimization solution for the luminous flux of the four-color LED hybrid light source under the multi-constraint constraint with fast convergence speed and high efficiency, the global optimal solution can be obtained with a large probability, and the high luminous flux hybrid light source with the optimal light source performance can be obtained. The method is employed to optimize the hybrid light source to achieve the accurate control of the color temperature of the hybrid light and obtain the optimal display effect at the target color temperature.

The invention discloses an automotive headlamp and an automobile, relates to the technical field of automobile fittings and aims to solve the technical problems that in the prior art a plurality of lens modules are large in light adjustment difficulty, poor in near light shape effect, large in module size, low in optical efficiency and high in cost. According to the automotive headlamp, the lightshape of a near light zone III is formed by a distance light lens lighting module in a radiation manner; in a near light lighting mode, the distance light lens lighting module is at a powered-on state, and the light shape formed by lighting radiation is a part of a whole light shape of the light shape of the near light zone III; when the distance light lens lighting module is in a distance light lighting mode, the light shape formed by lighting radiation is a part of a whole light shape of a distance light shape; the position of the upper edge of an equiluminous line of 62.5cd of the near light zone III formed by radiation of the distance light lens lighting module is designed not less than 4 degrees, the position of the lower edge is designed not greater than minus 0.57 degree, and the position of the left edge is designed not greater than minus 8 degrees, and the position of the right edge is designed not less than 8 degrees.

The invention discloses a multifunctional dimmer based on the Internet of things, which comprises a master controller and a plurality of slave controllers connected with the master controller. Each slave controller includes a voice perception and audio processor, a touch detection circuit, a silicon controlled rectifier dimmer circuit, a zero-crossing detection circuit, a wireless communication module, and the like. The multifunctional dimmer of the invention is used to improve the convenience of dimming of lighting devices, has a variety of control modes such as voice control, touch control and remote control, and is suitable for incandescent lamps, halogen lamps and adjustable LED lamps.

The invention discloses a rotary type light emitting module and a rotary type table lamp. The rotary type light emitting module comprises a prismatic light emitting main body (4), wherein the two ends of the prismatic light emitting main body (4) are both provided with rotating shafts (42), contact rings (47) which are used for obtaining power or control signals are arranged on arc faces of the rotating shafts, the prismatic light emitting main body is an N-prism, the N is an integer and larger than 2, an LED lamp panel (45) is arranged on each lateral side of the prismatic light emitting main body; inserting pins are arranged at the bottoms of the LED lamp panels, inserting holes matched with the inserting pins are formed in all the lateral sides of the prismatic light emitting main body, the lateral sides of the prismatic light emitting main body are electrically connected with the LED lamp panels through the inserting pins and the inserting holes, a plurality of LED lamps (46) are arranged on the LED lamp panels, and light transmitting plates (43) are arranged on the upper surfaces of the LED lamp panels. The table lamp is in a modularized design, and furthermore, the LED light emitting module can rotate, is convenient to switch and easy to assemble and maintain and has good flexibility.

The invention relates to a combined type reverse dimming device of a light path of a laser cutting machine. The combined type reverse dimming device of the light path of the laser cutting machine comprises an indicating light emitter, an adjustable mirror base dimming barrel, an Y-axis mirror base dimming barrel and a compensating mirror base dimming barrel, wherein the adjustable mirror base dimming barrel is installed in an adjustable mirror base light emitting hole, the Y-axis mirror base dimming barrel is installed on an Y-axis mirror base, and the compensating mirror base dimming barrel is installed on a compensation mirror base and is located in a light hole opposite to the Y-axis mirror base. The combined type reverse dimming device of the light path of the laser cutting machine is used during machine tool assembling and has the advantages that the coaxiality of the light holes between the mirror bases is guaranteed, light spots can be rounder after laser comes out of the cutting machine, the accuracy of a machined product can be higher, and the machined product is more perfect; meanwhile, time for dimming is greatly reduced for a dimming worker, working efficiency is improved, maintenance is more convenient and faster, cost of the machine tool is greatly reduced, and maintenance cost is greatly reduced.

The invention provides a dual-frequency lighting mixed pulse width modulation dimming electronic ballast, relating to an electronic ballast. The invention provides a dual-frequency lighting mixed pulse width modulation dimming electronic ballast which can ensure the lightness of the lamp to be in 100% to 30% with reliable light modulation, leads to no flashing lamp phenomenon, is convenient for being applied in single-line illumination control circuits and can be widely applied to existing energy-saving lamps and ballasts. The invention is provides with a rectification circuit, a zero cross detection circuit, a system control circuit, a dual-frequency point power output circuit and a lamp driving circuit. The input terminal of the rectification circuit is externally connected with a power supply; the input terminal of the zero cross detection circuit is connected with the output terminal of the rectification circuit; the input terminal of the system control circuit is connected with the output terminal of the zero cross detection circuit; the power supply input terminal of the dual-frequency point power output circuit is connected with the output terminal of the rectification circuit; the control input terminal of the dual-frequency point power output circuit is connected with the system control circuit; the input terminal of the lamp driving circuit is connected with the output terminal of the dual-frequency point power output circuit; the output terminal of the lamp driving circuit is externally connected with loads.

A lighting device comprises a light source defining a central axis and comprising at least two mutually independently operable lighting elements. The lighting device further comprises a rotatable deflective member rotatably mounted about said axis, and a fixed deflective member fixedly mounted on said axis and comprising at least two mutually differently deflective portions which each are associated with a respective lighting element. The lighting device of the invention enables various operation modes, like light beam rotation can rotate, jumping of the light beam from one location to another by a sequence of switching on and off one or more of the at least two lighting elements, or in that it can be dimmed or boosted, for example dimmable in steps by a sequence of one by one switching off the lighting elements.

The invention discloses an intelligent on-off remote APP synchronization method of an incandescent lamp. A intelligent dimming on-off system of an incandescent lamp is constructed; the intelligent dimming on-off system is electrified and a timer is initialized; the intelligent dimming on-off system enters a major cycle mode, processes serial port data, and carries out remote dimming according to serial port data of communication between a mobile phone APP and the intelligent dimming on-off system; the intelligent dimming on-off system scans a key, determines a key state, and carries out local dimming based on the key state; an on-off lamp mark value and a brightness level mark value are recorded in the intelligent dimming on-off system; and then the on-off lamp mark value and the brightness level mark value are transmitted to the mobile phone APP through a serial port. Therefore, after local dimming, the on / off state after dimming can be synchronized to the mobile phone APP, so that the user experience can be improved and needs of the common users can be met.

The invention relates to an intelligent mining lamp capable of adjusting light at multiple angles. The intelligent mining lamp capable of adjusting the light at the multiple angles comprises a lamp cylinder and is characterized in that a light source plate and a light adjusting rotating disc positioned under the light source plate are arranged in the lamp cylinder; the light source plate is fixedto the lamp cylinder; the intelligent mining lamp capable of adjusting the light at the multiple angles further comprises a driving mechanism positioned above the light source plate and used for driving the light adjusting rotating disc to rotate; an avoiding through groove for a driving end of the driving mechanism to penetrate through is formed in the middle position of the light source plate; multiple lamp bead groups, which are uniformly distributed around the avoiding through groove in the form of a circumference, are arranged on the surface of one side, towards the light adjusting rotating disc, of the light source plate; lamp beads of the lamp bead groups are arranged from the middle part of the light adjusting rotating disc to the edge; multiple lens groups corresponding to the lamp bead groups in a one-to-one manner are arranged on the light adjusting rotating disc; each lens group comprises at least two rows of lenses; the lenses are used for the lamp bead groups to emit lights; and light emitting angles of the two adjacent rows of lenses in each lens group are different. The intelligent mining lamp capable of adjusting the light at the multiple angles, provided by the invention, has the advantages that the light emitting angles can be rapidly adjusted, the adjusting is convenient, a good light adjusting effect is also realized, and use demands of construction personnel are satisfied.

The invention relates to a vehicle lamp, and discloses a vehicle headlamp optical system. The system comprises a plurality of modules and a lens (4) arranged in front of the modules; the plurality of modules comprise at least one high beam module (1), at least one main low beam module (3) and at least one auxiliary low beam module (2); the lens (4) is a narrow and long lens; and the modules are arranged at intervals in the length direction of the lens (4). In addition, the invention further relates to a vehicle headlamp and a vehicle. According to the vehicle headlamp optical system, the vehicle headlamp and the vehicle of the invention, the design of miniaturization and shape diversification of the vehicle headlamp can be realized.