Guangzhou Haoyang Electronic Co., Ltd.

A control circuit with a slow-start switch includes a power supply, a post-stage load and an MCU for outputting a control voltage for activating the control circuit. The power supply is a constant-voltage power supply and is controllably coupled to the post-stage load through a delay switch and a current limiting module. The delay switch is a normally-open switch. The current limiting module is configured to be enabled when the control voltage is outputted by the MCU under power-on of the power supply and to be automatically disabled when the delay switch is turned on. A limiting current I3 of the current limiting module to the post-stage load is less than or equal to a minimum value of an anti-surge current I1 of the power supply and an anti-surge current I2 of the delay switch.

A stage light fixture with a superimposed color filtering element, having a light head and a support holder. A color wheel is disposed along a light beam emission direction, and the color wheel is provided with a superimposed color filtering element. A driving device is further included for driving the color wheel to rotate and driving the superimposed color filtering element to switch into/out of the light beam. The superimposed color filtering element includes at least two superimposed color filters, each of the color filters has a transparent substrate, at least one side of each transparent substrate being provided with a monochromatic coating layer. The monochromatic coating layer has a colored region and an uncolored region. When the superimposed color filtering element is switched into the light beam, the colored regions of at least two monochromatic coating layers are simultaneously positioned in the light beam.

A stage light fixture with a superimposed color filtering element, having a light head and a support holder. A color wheel is disposed along a light beam emission direction, and the color wheel is provided with a superimposed color filtering element. A driving device is further included for driving the color wheel to rotate and driving the superimposed color filtering element to switch into/out of the light beam. The superimposed color filtering element includes at least two superimposed color filters, each of the color filters has a transparent substrate, at least one side of each transparent substrate being provided with a monochromatic coating layer. The monochromatic coating layer has a colored region and an uncolored region. When the superimposed color filtering element is switched into the light beam, the colored regions of at least two monochromatic coating layers are simultaneously positioned in the light beam.

A flat-type effect module includes a first flat motor and an effect wheel assembly. The first flat motor has a first stator to generate a magnetic field when energized, and a first rotor arranged outside the first stator in a sleeving mode. The effect wheel assembly is fixed to the first rotor, and the effect wheel assembly includes a wheel body for generating a light effect which is provided with effect areas for intercepting a light beam to change the color and/or shape thereof. According to the present invention, no rotating shaft, such as the traditional rotating shaft motor has, exists on the first flat motor, the effect wheel assembly in the present invention is directly fixed to the first rotor, so that the height of the rotating shaft can be reduced and more effect elements can be arranged.

A method for manually tracking a target object with aid of machine vision includes steps of: taking an image containing a target object by a camera with a known pose; calculating predicted state information of the target object containing a predicted coordinate position at a t th moment according to movement state information of the target object at a (t−1) th moment; taking a position of the target object at the t th moment manually input by a user as a real coordinate position; obtaining movement state information of the target object at the t th moment by combining the real coordinate position with the predicted state information; calculating a spatial coordinate position of the target object according to an estimated coordinate position contained in the movement state information by combining parameters of the camera; and sending the spatial coordinate position to a follow spotlight for tracking.

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.

A press lock includes a lock plate, and a locking member including a lower mounting plate, a pressing cap, and a lock lever. An elastic retention member configured to maintain the lock lever in a balanced position and a guide block with a guide groove are further included, where an end of a hook connected to the pressing cap is received in the guide groove. When the end of the hook is located at a lower locking position of the guide groove, the pressing cap acts on the elastic retention member to allow the lock lever to move downwards to fit with the lock plate, and when the end of the hook is located at an upper locking position of the guide groove, the lower mounting plate acts on the elastic retention member to allow the lock lever to move upwards and disengage from the lock plate.

A stage light fixture has a support, a bottom case, a light head rotatable relative to the support or the bottom case with driving of a motor. The support includes a support base pivoted to the bottom case, a base sealing cavity being formed in the support base, and two support arms respectively pivoted to two opposite sides of the light head, two arm sealing cavities being respectively formed in the two support arms. The base sealing cavity is in communication with at least one of the two arm sealing cavities in the two support arms, the support base is in sealed connection with the two support arms at points where the base sealing cavity is in communication with the two arm sealing cavities, and the motor is positioned in the base sealing cavity or at least one of the two arm sealing cavities.

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.

A waterproof ventilation module has a cavity including a first side plate and a second side plate. The first side plate is provided with at least one first air vent and at one side of the first side plate opposite to the second side plate is provided with at least one first water blocking baffle surrounding the first air vent, and the second side plate is provided with at least one second air vent, the first air vent and the second air vent being staggered in position. The ventilation module in the present invention achieves waterproof performance while allowing air communication between the first air vent and the second air vent for heat dissipation.