Abstract: A foldable handle includes a base bar, a steering lever pivoted to the base bar, and a movable retaining element. The steering lever has two states relative to the base bar, including a folding state where the steering lever is substantially perpendicular to the base bar and an unfolding state where the steering lever is substantially in the same line with the base bar. The steering lever is configured in a way that in the unfolding state a first side of the steering lever is blocked by a side plate protruded from an end of the base bar to restrict the steering lever to rotate forward. The retaining element is configured to move to be abutted against a second side of the steering lever opposite to the first side blocked by the side plate to restrict the steering lever to rotate backward in the unfolding state of the steering lever.

Abstract: The present invention relates to the technical field of stage light fixtures, in particular to a stage light fixture having a universal support arm, which includes a supporting arm rotatably supported on a bottom base, the supporting arm having a universal frame of an integrally formed structure and an adapter detachably connected to the universal frame and a light head rotatably disposed at the adapter via a rotating shaft, a light source being disposed in the light head. The present invention is advantageous to improve the mounting accuracy and overall structural strength of the movable support of a light head, simplify the assembly process of the movable support of the light head, and contribute to standardize the production of the movable support of the light head.

Abstract: A reverse-lock hand holding assembly includes a base support and a handle pivoted to the base support, which handle has a folded state and an unfolded state. A locking plate capable of sliding parallel to the base support is arranged on the base support for locking the handle against reverse rotation thereof, which locking plate has a first position and a second position, and the rotation shaft of the handle is provided with a locking block. The locking plate releases the handle and allows the handle to rotate between the folded state and the unfolded state when at the first position, and the locking block is abutted against the locking plate toward the base support to limit the handle to reversely rotate to the folded state from the unfolded state when the locking plate is at the second position.

Abstract: A stage light fixture with a light head having external heat dissipation includes a light head for projecting light beams, which is formed as a cylinder with a light outlet which is covered by a light emitting lens, and a support arm for supporting the light head to rotate via a pivoting shaft. At least one first blower is provided in the support arm, which is configured to blow air around the light head to flow and thus cool the light head. According to the present invention, active heat dissipation is formed and enclosed interior of the cylinder is simultaneously ensured without damage to the existed structure of the light head. The light head thus can be effectively cooled in a way that the air around the light head is blown to flow and promptly entrain the heat on the side wall thereof via the first blower.

Abstract: A Mesh network-based synchronization system includes a plurality of stage lights and a controller for controlling the stage lights, each of the stage lights having an ad hoc network module. A LAN is established based on the Mesh technology among several stage lights by the controller under the help of the ad hoc network module, one stage light in the LAN acts as a master node, the remaining stage lights forms at least one tree-shaped network topological structure connected to the master node, and some stage lights are selected to form a group. Subsequent to time synchronization of the stage lights in the group, delay time of each stage light relative to the master node is respectively calculated according to the layer level, the master node sends a start command in advance of the corresponding delay time to the respective stage light to synchronously display a show.

Abstract: A light head with auxiliary heat dissipation includes a housing having a light outlet and a light-outgoing lens assembly being arranged at the light outlet. A cover plate is provided at the outer side of the housing. A heat-dissipating air passage is formed between the housing and the cover plate along the length direction of the housing, and both ends of the heat-dissipating air passage are respectively provided with a first air vent and a second air vent. A first air blower is further included for blowing the air in the heat-dissipating air passage to flow between the first air vent and the second air vent.

Abstract: A stage light system for synchronized operation of a show includes a plurality of stage lights, each stage light has an ad hoc network module; and a controller for controlling the stage light. A LAN is established among at least a portion of the stage lights by the controller through the ad hoc network module, in such LAN one of the stage lights is selected as a master node and the rest are taken as a plurality of follower nodes. All of the stage lights in the LAN are configured to perform time synchronization, and send the current show frame information of the master node to the follower nodes and adjust respective show frames of the follower nodes according to the current show frame information of the master node.

Abstract: A human body positioning method based on multi-perspectives includes simultaneously capturing pictures from at least two perspectives angles and extracting human body feature points, matching the human body feature points of a same human body of a same position in different pictures to form matched point groups and calculating 3D coordinates of corresponding 3D point of each matched point group in a 3D space, further calculating and weighting spatial geometric error between the 3D point and each human body feature point of the corresponding matched point group in each original picture to obtain reprojection error of the 3D point, and subsequent to projecting each 3D point onto the ground to obtain single-point 2D coordinates thereof on the ground, weighting the projected single-point 2D coordinates according to the reprojection error of the corresponding 3D point to obtain a projection distribution of the corresponding human body on the ground.

Abstract: A method for adjusting color rendering index of a light source and a stage light fixture are provided. The light source has a first LED chip set with a first color rendering index and a second LED chip set with a second color rendering index. The range of chromaticity differences of a target spectrum and color differences of 14 Munsell color samples of the target spectrum are defined according to a target spectral power distribution of a reference light source under a target color rending index and a target color temperature. The light intensity control parameter K1, K2 of the first LED chip set and the second LED chip set are adjusted, and a relative spectral power distribution of synthesized lighting of the controlled light source is calculated to search for values of K1 and K2 enabling the relative spectral power distribution to fall within the range.

Abstract: The present invention relates to the technical field of stage light fixtures, in particular to a stage light fixture having a universal support arm, which includes a supporting arm rotatably supported on a bottom base, the supporting arm having a universal frame of an integrally formed structure and an adapter detachably connected to the universal frame and a light head rotatably disposed at the adapter via a rotating shaft, a light source being disposed in the light head. The present invention is advantageous to improve the mounting accuracy and overall structural strength of the movable support of a light head, simplify the assembly process of the movable support of the light head, and contribute to standardize the production of the movable support of the light head.

Abstract: A capacitance type rotation angle detection stage light includes a pivoting member and a supporting member for supporting the pivoting member. A reflecting grating is attached on the pivoting member, and the reflecting grating rotates along with the pivoting member. A signal grating is attached on the supporting member. The signal grating and the reflecting grating are arranged oppositely. The signal grating comprises capacitance emitting pieces, a capacitance receiving piece and shielding pieces. The reflecting grating comprises capacitance reflecting pieces that reflect signals sent from the capacitance emitting pieces to the capacitance receiving piece. Periodic excitation signals applied to the capacitance emitting pieces finally form a composite signal on the capacitance receiving piece through coupling of two pairs of capacitors that the capacitance emitting pieces and the capacitance reflecting pieces, and the capacitance reflecting pieces and the capacitance receiving piece.

Abstract: A waterproof light head structure includes a main bracket, a front cover and a rear cover respectively arranged on the front side and the rear side of the main bracket, an upper plate arranged above the main bracket, a bottom plate arranged below the main bracket, a lens assembly arranged on the main bracket via the upper plate, and a light source arranged in the main bracket. The main bracket is arranged in a cavity formed by joining the front cover and the rear cover. The front cover and the rear cover are respectively in sealed connection with the upper plate and the bottom plate, and the side edges where the front cover and the rear cover are joined are in sealed connection to form an all-around waterproof structure. The waterproof light head according to the present invention is simple in structure, while the waterproof performance is guaranteed.

Abstract: A stage light fixture with high-stable rotational positioning including a base, a pivoting arm pivoted to the base through a pivoting shaft, and a light head pivoted to the pivoting arm through another pivoting shaft. An angular detector for detecting a rotation angle of the light head and/or the pivoting arm is further provided, which includes a stator assembly and a rotor assembly oppositely arranged each other, wherein the stator assembly has a magnet exciting coil adapted to form an alternating magnetic field in a region of the stator assembly by high-frequency periodic alternating current and voltage and a receiving coil arranged in the alternating magnetic field adapted to form an induced electromotive force; and the rotor assembly is configured to change electromagnetic coupling strength between the magnet exciting coil and the receiving coil during rotation thereof relative to the stator assembly.

Abstract: A stage light fixture with high-accuracy rotary positioning includes a supporting member and a pivoting member pivoted to the supporting member. The pivoting member has at least one light source for generating a lighting effect and is driven to rotate by at least one flat motor. The flat motor includes a stator generating a magnetic field by energization, and a rotor sleeve on the stator and driven by the magnetic field. The pivoting member is fixedly connected with the rotor, and the supporting member is fixedly connected with the stator; or the pivoting member is fixedly connected with the stator, and the supporting member is fixedly connected with the rotor. With respect to the conventional rotating shaft motor, no transmission assembly is provided, a transmission error thus can be avoided to achieve more accurate positioning, and a height of the motor can further be reduced.

Abstract: A stage light fixture having light effect elements server includes a light source arranged in a light head for generating a light beam, effect sheets for generating a light effect, at least one light effect elements server for receiving the effect sheets, and at least one moving mechanism for extracting at least one of the effect sheets from the light effect elements server to move between the light effect elements server and the light beam, and can keep the extracted effect sheet in the light beam. According to the present disclosure, the moving mechanism may not always occupy the space in the direction of the light path of the light beam, but only temporarily occupy the space in the direction of the light path when the effect sheet is moved to the light path, the space thus can be fully utilized.

Abstract: An intelligent focusing method of an intelligent moving head light based on machine vision includes the following steps: prestoring coordinate positions Z21 and Z22 of the focusing assembly corresponding to stage light projection distances Smax and Smin respectively, moving the focusing assembly to a position between Z21 and Z22 after the controller receives a command to start an automatic focusing function; gradually moving the focusing assembly between Z21 and Z22 by a focusing search strategy, calculating a sharpness evaluation value Tn of a current projected image according to an image sharpness evaluation function, and determining whether Tn is greater than a preset high sharpness threshold TH if yes, completing the focusing, otherwise determining whether Tn is less than or equal to Tn-1, if yes, driving the stepper motor by the driver to operate in an opposite direction, otherwise driving the stepper motor by the driver to operate in an original direction, until Tn is greater than TH.

Abstract: A lighting control method includes steps of: obtaining an influence range of lighting irradiation of a light source; recognizing a plurality of designated targets within a certain range; making a marking for each of the designated targets and obtaining a current distance between each of the designated targets and the light source; obtaining a current output power of the light source; and determining whether the marking enters the influence range, whether the current distance is less than a preset distance threshold, and whether the output power is greater than a preset power threshold, if all yes, outputting a protection signal. According to the present invention, safety can be visually and quickly determined in an easy way through three conditions including the influence range, the current distance and the output power, without complex energy density calculation.

Abstract: A stage light fixture having light effect elements server includes a light source arranged in a light head for generating a light beam, effect sheets for generating a light effect, at least one light effect elements server for receiving the effect sheets, and at least one moving mechanism for extracting at least one of the effect sheets from the light effect elements server to move between the light effect elements server and the light beam, and can keep the extracted effect sheet in the light beam. According to the present disclosure, the moving mechanism may not always occupy the space in the direction of the light path of the light beam, but only temporarily occupy the space in the direction of the light path when the effect sheet is moved to the light path, the space thus can be fully utilized.

Abstract: A waterproof light head structure includes a main bracket, a front cover and a rear cover respectively arranged on the front side and the rear side of the main bracket, an upper plate arranged above the main bracket, a bottom plate arranged below the main bracket, a lens assembly arranged on the main bracket via the upper plate, and a light source arranged in the main bracket. The main bracket is arranged in a cavity formed by joining the front cover and the rear cover. The front cover and the rear cover are respectively in sealed connection with the upper plate and the bottom plate, and the side edges where the front cover and the rear cover are joined are in sealed connection to form an all-around waterproof structure. The waterproof light head according to the present invention is simple in structure, while the waterproof performance is guaranteed.

Abstract: A self-calibration method for positioning of a light fixture includes steps of: S1. setting a plurality of preset positioning reference points around the circumference of the absolute encoder; driving the light fixture to rotate by the driving device and acquiring a corresponding first output value of the absolute encoder at each preset positioning reference point; S2. driving the light fixture to rotate by the driving device and acquiring a second output value of the absolute encoder, and when the second output value is equal to the corresponding first output value at a certain preset positioning reference point, taking the preset positioning reference point as a calibrated positioning reference point; and S3. positioning the light fixture according to the calibrated positioning reference point.