A method for dynamically adjusting a PWM signal includes steps of: presetting a standard signal period and a standard duty ratio of an effective pulse; receiving a target duty ratio entered by a user and comparing the target duty ratio with the standard duty ratio; adjusting a duration of a signal period relative to the standard signal period while keeping a duration of the effective pulse unchanged to cause a duty ratio to reach the target duty ratio, when the target duty ratio is smaller than the standard duty ratio; adjusting the duration of the effective pulse while keeping the duration of the standard signal period unchanged to cause the duty ratio to reach the target duty ratio, when the target duty ratio is larger than the standard duty ratio, when the target duty ratio is equal to the standard duty ratio.
A lighting effect adjustment system includes a light source module, and a focusing module, a magnification module and a light output lens that are arranged in sequence along a beam projection direction of the light source module. The focusing module, the magnification module and the light output lens are mounted on a stage light holder, The focusing module and the magnification module are independently slidable in a light path direction. An effect module is further slidably arranged between the focusing module and the light output lens. The effect module includes one or more effect sheets configured to be switched into and out from a light path, and motions of the effect module and the magnification module are independent without interference with each other.
F21V 17/00 - Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
F21V 5/04 - Refractors for light sources of lens shape
F21V 17/06 - Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages onto or by the lamp holder
F21V 14/00 - Controlling the distribution of the light emitted by adjustment of elements
F21W 131/406 - Lighting for industrial, commercial, recreational or military use for theatres, stages or film studios
3.
LED dimming device with high refresh rate and smooth dimming
An LED dimming device with a high refresh rate and smooth dimming includes a constant current source circuit and an LED dimming circuit that are sequentially connected in series. The LED dimming circuit includes an LED and a first electronic switch. A positive electrode of the LED is connected to an output end of the constant current source circuit. The first electronic switch is connected in parallel at both ends of the LED. The LED dimming device further includes an energy release circuit and a first control circuit. The energy release circuit is connected in series with the first electronic switch to release excess energy in the constant current source circuit. The first control circuit is connected to the first electronic switch to control turning on or off of the first electronic switch.
A stage light with a speed reducer including a light head, a supporting arm and a bottom box. The light head is pivotally connected to the supporting arm by a pivot shaft. The supporting arm is pivotally connected to the bottom box by a pivot shaft. The pivot shaft of the light head and/or the pivot shaft of the supporting arm is connected to a drive shaft of a driving mechanism by the speed reducer. According to the stage light with the speed reducer, the pivot shaft of the light head and/or the pivot shaft of the supporting arm is connected to the speed reducer drive shaft of the driving mechanism, thereby realizing using a transmission part in the speed reducer for transmission, avoiding using a synchronous belt. The transmission part will not deform and cause inaccurate scanning positioning or fracture, and the product performance is more stable.
F21V 17/12 - Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by screwing
F21V 21/15 - Adjustable mountings specially adapted for power operation, e.g. by remote control
F21W 131/406 - Lighting for industrial, commercial, recreational or military use for theatres, stages or film studios
5.
Low-noise light fixture reset structure and control method thereof
A low-noise light fixture reset structure includes a pivot shaft and a pivot member rotatably connected to the pivot shaft. The pivot shaft is fixedly connected with a drive wheel and is sleeved with a shifter lever on which a first detection marker is provided on the shifter lever. A first detector configured to detect the first detection marker is provided on the pivot member. A first limiting post configured to limit the shifter lever is also provided on the drive wheel. The pivot member is further provided with an elastic member capable of resisting against the shifter lever and a second limiting post that limits the shifter lever. The second limiting post, the elastic member, and the first limiting post do not interfere with each other during a relative movement between the pivot member and the pivot shaft.
The control system for a stage light fixture with photobiological safety includes a control unit connected to a motor assembly and a light source and configured to control the stage light fixture to operate, and a distance sensor connected to the control unit, and configured to acquire an instant distance from a living being to the stage light fixture. The control unit stores a light radiation hazard exposure radiance limit value and a light fixture irradiance value acquired in advance per unit of time and distance, and acquires a parameter of the living being entering an irradiation danger zone according to the instant distance, the light radiation hazard exposure radiance limit value, and the light fixture irradiance value. When a hazard condition reaches the parameter of the living being entering the irradiation danger zone, the control unit controls the stage light fixture to move to eliminate the hazard condition.
The present invention discloses a high-temperature deformation resistant effect disk, including a disk body and a plurality of hollow holes provided on the disk body and used to generate light effects, in which an outer periphery of the disk body is provided with a plurality of notches, and/or an inner periphery of the disk body where a central pivot hole is formed is provided with a plurality of notches. The notches are provided on the outer periphery and/or the inner periphery of the disk body to absorb strain force generated by thermal expansion of effect regions used to provide the hollow holes on the disk body, so that the disk body can return to an original shape after cooling without generating deformation and affecting generated pattern shapes, and the effect disk also may not be in contact with other elements in a process of rotation or translation.
A multicolor lighting adjusting device includes a substrate with a light transmission hole, a transparent color mixing plate mounted on the substrate, and a drive mechanism for driving the color mixing plate. The color mixing plate has a plurality of color zones thereon, the color zones are randomly distributed in shape and/or color, and the colors of two adjacent color zones are mutually different. The color mixing plate has a first remaining position at which point a light beam passing through the light transmission hole is intercepted by at least two of the color zones on the color mixing plate. With this device, the light beam passing through the light transmission hole is intercepted by at least two color zones on the color mixing plate, so that the projected light beam has at least two kinds of colors, achieving a gorgeous lighting effect and a vibrant atmosphere.
F21S 10/00 - Lighting devices or systems producing a varying lighting effect
F21V 9/08 - Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for producing coloured light, e.g. monochromaticElements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for reducing intensity of light
9.
Stage light having wireless power signal transmission system
A stage light having a wireless power signal transmission system includes a base, a U-shaped arm pivotally connected to the base, a light head pivotally connected between two holding arms of the U-shaped arm, and a driving assembly used to drive the U-shaped arm and the light head to rotate, in which a wireless power transmission device is provided at a connection portion between the U-shaped arm base and the base and/or between the U-shaped arm and the light head, and the wireless power transmission device includes a wireless power signal transmitting module and a wireless power signal receiving module matched with the wireless power signal transmitting module.
A method of quickly setting a DMX address of a light fixture, the controller sending a DMX address to an i-th light fixture through a first signal line; the i-th light fixture setting DMX address as the received DMX address, calculating a DMX address of an (i+1)th light fixture based on the received DMX address, and sending the DMX address of the (i+1)th light fixture to the (i+1)th light fixture through the first signal line; the (i+1)th light fixture setting DMX address thereof as the received DMX address, and sending a feedback signal to the i-th light fixture through the first signal line; the first light fixture to the i-th light fixture each sending a counting signal or a UID code or a successfully set DMX address to the controller through the first signal line if the i-th light fixture does not receive the feedback signal within a set time.
The present invention discloses an internal-circulating heat dissipation system for a stage light, the system comprising a support arm, a light holder and a circulating heat dissipation system, wherein the light holder is pivotally connected to the support arm through a pivot shaft, the pivot shaft is of a shaft pipe structure, an internal space of the light holder is in communication with an internal space of the support arm through the pivot shaft, the circulating heat dissipation system comprises a cooling medium, a heat dissipation component located inside the support arm, and a power component that promotes the cooling medium to flow in circulation between the light holder and the heat dissipation component through the shaft pipe structure, and the cooling medium is isolated from an external space of the stage light.
F21V 29/71 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
F21V 21/15 - Adjustable mountings specially adapted for power operation, e.g. by remote control
H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating
12.
Light adjusting device with effect wheel and stage light with the light adjusting device
The present invention discloses a light adjusting device and a stage light with the light adjusting device. The light adjusting device includes an effect wheel provided with an effect area around a center and a moving mechanism driving the effect wheel to move among first, second, third and fourth pausing positions. When in the first pausing position, the effect area of the effect wheel is located outside the light beam. When in the second pausing position, a distance of the center of the effect wheel and a center of the light beam is less than or equal to one-half of a radius of the light beam. When in the third pausing position and when in the fourth pausing position, the center of the effect wheel is locate outside the light beam, and the effect area at least partially intercepts the light beam.
The present invention discloses a stage light having an unlockable brake motor, comprising a controlled component, and a braking motor that drives the controlled component to move, wherein the braking motor comprises a motor unit and a braking unit for braking the motor unit, and the braking motor is a power-off locking motor; and further comprising a controller, an auxiliary power source that supplies backup power to the braking unit, and an input unit that controls on and off of the auxiliary power source, wherein the motor unit and the braking unit are connected in parallel with each other and are both electrically connected to the controller.
F21V 21/15 - Adjustable mountings specially adapted for power operation, e.g. by remote control
H05B 47/175 - Controlling the light source by remote control
H02M 3/158 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
F21V 21/06 - Bases for movable standing lampsFixing standards to the bases
F21W 131/406 - Lighting for industrial, commercial, recreational or military use for theatres, stages or film studios
A motor braking system of a stage light includes a controlled component, a braking motor that drives the controlled component to move, and a controller, wherein the braking motor includes a motor unit and a braking unit for braking the motor unit; the braking motor is a power-off locking motor; the motor unit and the braking unit are both electrically connected to the controller; and when detecting that the motor unit is powered on, the controller controls the motor unit to provide a holding torque, and controls the braking unit to be powered on to release a locked state.
A combined-type dynamic effect wheel includes a light source and an effect wheel bottom plate. The effect wheel bottom plate is provided with a light-through hole and several pattern bases, each pattern base being provided with a pattern sheet. A first rotating assembly and a second rotating assembly are provided at the center of the effect wheel bottom plate, and the effect wheel bottom plate is driven by the first rotating assembly to rotate so as to enable different pattern bases or the light-through hole to be switched in or out of a light beam; the pattern base is provided with a driven assembly; and the size of an effective pattern on the pattern sheet is greater than the size of an effective light spot of the light beam passing through the pattern sheet.
A color matching method, color regulation method, and color regulation system for automatically implementing the maximum brightness of a colored light, using a color matching algorithm for the maximum brightness so that a brightness formula for each primary color when the colored light implements a certain color coordinate point within the color gamut space can be efficiently and accurately calculated, and the brightness of the colored light reaches a maximum value after the color matching. The brightness formulae for commonly used target colors within the color gamut space of the colored light is calculated by means of the color matching algorithm for the maximum brightness, and these formulae are stored in a control unit of a light.
A stage light free from damage of sunlight includes a light body and a control assembly, and a light avoiding system. When the light body is in a power-on state, the control assembly controls the light avoiding system not to work; and when the light body is in a power-off state, the control assembly controls the light avoiding system to implement a light avoiding action. According to the present invention, smart light avoiding according to a sunlight status can be achieved by means of a light avoiding system. The light avoiding system has advantages of a high automatic recognition level, a flexible access system, and being cost-effective and easy to implement.
F21S 9/03 - Lighting devices with a built-in power supplySystems employing lighting devices with a built-in power supply the power supply being a battery or accumulator rechargeable by exposure to light
F21V 21/15 - Adjustable mountings specially adapted for power operation, e.g. by remote control
A color temperature compensation system comprises a light source, a dimming element for dimming the light source, a color temperature compensation sheet for performing color temperature compensation on light output from the dimming element, in which there are different changes of color value on the color temperature compensation sheet, and a driving mechanism for controlling the movement of the color temperature compensation sheet and driving the color temperature compensation sheet to switch in and switch out of a light path.
An automatic stage lighting tracking system comprises an emitting element detachably mounted on a target to be tracked, a stage light source element for illuminating the tracked target, an upper computer software having an OpenCV computer vision library and a DMX512 console, and a photographing element for detecting a position of the emitting element and photographing an image of the target, and transmitting the image and position signal to the upper computer software.
H05B 47/125 - Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings by using cameras
H05B 47/155 - Coordinated control of two or more light sources
H05B 47/13 - Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings by using passive infrared detectors
F21V 23/00 - Arrangement of electric circuit elements in or on lighting devices
An Ethernet lighting control system comprises an ARTNET console and several rows of stage lights, wherein each row of stage lights comprises several stage lights successively connected in series, each stage light being internally provided with a network switching unit. The ARTNET console is connected to a network switching unit of a first stage light in each row of stage lights, by means of a network cable respectively; adjacent stage lights in each row of stage lights are connected in sequence by means of a network cable; a network control signal sent by the ARTNET console is delivered to the network switching unit of the first stage light; and the network switching unit of the preceding stage light receives and delivers the network control signal to an internal circuit of the stage light for processing, and then switches to the network switching unit of the subsequent stage light.
The prevent invention discloses a gradient frosting system comprising a light processing mechanism arranged in a direction of a primary optical axis of a light beam, a frosting mechanism perpendicular to the primary optical axis of the light beam, and a power mechanism for outputting power to drive the frosting mechanism to move, wherein the frosting mechanism comprises two frosting components, including a left frosting component and a right frosting component, moving towards or away from each other, and the left and right frosting components are arranged on the power mechanism and driven by the power mechanism to conduct open-close motion in a plane perpendicular to the primary optical axis. According to the present invention, the frosting effect generated is multi-level, gradually varied, and uniform in frosting level, which can better heighten the stage atmosphere and adapt to the presentation of various stage effects.
The present invention provides a finned heat-exchange system, comprising a heat dissipation chamber, a fin, an air guide element and a base, wherein the heat dissipation chamber is isolated from the outside, and both the fin and the air guide element are connected to the base; and the air guide element and the fin are in communication with the heat dissipation chamber through the base to dissipate heat from the inside of the heat dissipation chamber.
F28D 1/04 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits immersed in the body of fluid with tubular conduits
F28D 1/02 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits immersed in the body of fluid
F21V 29/503 - Cooling arrangements characterised by the adaptation for cooling of specific components of light sources
F21V 29/67 - Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans
F28D 1/053 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
F28F 1/14 - Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally
F28F 1/24 - Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
F21W 131/406 - Lighting for industrial, commercial, recreational or military use for theatres, stages or film studios
23.
Stage lamp optical system having beam and pattern effects and light projecting device
The present invention discloses a stage lamp optical system having beam and pattern effects comprising a laser light source, a first light guide component, an LED light source, a second light guide component and a plurality of optical lens components, which are sequentially arranged along a main optical axis, wherein both the LED light source and the second light guide component are provided with an opening at a position directly facing the first light guide component; and after the light from the laser light source passes through the first light guide component or after the light from the LED light source passes through the second light guide component, the light sequentially passes through the plurality of optical lens components to form a light output in a beam mode or in a pattern mode.
F21V 9/32 - Elements containing photoluminescent material distinct from or spaced from the light source characterised by the arrangement of the photoluminescent material
F21V 5/04 - Refractors for light sources of lens shape
F21V 14/08 - Controlling the distribution of the light emitted by adjustment of elements by movement of screens
The present application relates to an active radiator with omnidirectional air convection and a stage lighting fixture using the same. The active radiator includes a radiator body provided with heat dissipation channels and a heat transfer assembly which is at least partially transversely arranged inside the radiator body and in form of an integrity therewith. The present application of simple structure and convenient in use can achieve efficient heat dissipation through omnidirectional active heat dissipation of the stage lighting fixture, and can also reduce overall costs and is easy to install.
F28D 15/00 - Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls
F21V 29/503 - Cooling arrangements characterised by the adaptation for cooling of specific components of light sources
F21V 29/83 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
F21V 29/76 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
F21V 29/51 - Cooling arrangements using condensation or evaporation of a fluid, e.g. heat pipes
F21V 29/71 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
patents