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公开(公告)号：US12078320B1
公开(公告)日：2024-09-03
申请号：US18522934
申请日：2023-11-29
发明人： Yingru Peng , Weikai Jiang , Xianwen Mai , Wenfeng Chen
IPC分类号： F21V14/02 , F21V21/06 , F21V21/108 , F21V23/00 , H02K1/18 , H02K1/22 , F21W131/406
CPC分类号： F21V14/02 , F21V21/06 , F21V21/108 , F21V23/009 , H02K1/18 , H02K1/223 , F21W2131/406
摘要： 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.
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公开(公告)号：US12031704B2
公开(公告)日：2024-07-09
申请号：US17182475
申请日：2021-02-23
发明人： Weikai Jiang
IPC分类号： F21V21/14 , G02B7/36 , G06T5/73 , G06T7/00 , H05B47/105 , F21Y115/10
CPC分类号： F21V21/14 , G02B7/36 , G06T5/73 , G06T7/0002 , H05B47/105 , F21Y2115/10
摘要： 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.
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3.发明公开公开(公告)号：US20240179813A1
公开(公告)日：2024-05-30
申请号：US18176317
申请日：2023-02-28
发明人： Weikai JIANG
摘要： 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.
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公开(公告)号：US11988373B1
公开(公告)日：2024-05-21
申请号：US18322066
申请日：2023-05-23
发明人： Weikai Jiang , Jinjian Cai , Wenfeng Chen , Qingbi He , Yinru Peng
CPC分类号： F21V31/03 , F21V15/01 , F21V21/30 , F21V23/009 , F21V31/005
摘要： A light fixture with self-test ability of sealing includes a light head with a head housing, a light source for emitting light and generating heat, and a temperature sensor and an air pressure sensor for respectively detecting the temperature and air pressure inside the head housing are provided in the head housing. A controller is further included for determining the sealing performance of the head housing based on the detection results of the temperature sensor and the air pressure sensor. The head housing is provided with a waterproof breathable valve allowing the internal space of the head housing in air communication with the external space of the light fixture. A switch is configured which is capable of switching between two states by unblocking/blocking the waterproof breathable valve to make the internal space of the head housing in air communication with the external space of the light fixture or not.
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公开(公告)号：US11846406B1
公开(公告)日：2023-12-19
申请号：US17977552
申请日：2022-10-31
发明人： Weikai Jiang
IPC分类号： F21V11/10 , F21W131/406 , F21S10/00
CPC分类号： F21V11/10 , F21S10/007 , F21W2131/406
摘要： A small-sized aperture assembly includes a base plate, an optical shutter fixed to the base plate, a motor providing a driving force, a linkage mechanism with one end connected to the motor, and a transition gear located between the linkage mechanism and the optical shutter. A periphery of the optical shutter is provided with a sawtooth segment meshed with the transition gear, and the other end of the linkage mechanism is hinged to the transition gear, so that the linkage mechanism drives the transition gear to move under the driving of the motor, and enables the optical shutter to switch between a closed state and an open state.
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公开(公告)号：US11774069B1
公开(公告)日：2023-10-03
申请号：US18148981
申请日：2022-12-30
发明人： Weikai Jiang
摘要： A light fixture system with auto-adjustable inclination angle of a lens includes a case, a supporting arm pivotally connected to the case and rotatable in a first dimension, and a light head pivotally connected to the supporting arm and rotatable in a second dimension. The light head is provided with a light source, a light-transmitting lens, and at least three driving mechanisms for driving the light-transmitting lens to move along an outgoing direction of the light source, and the driving mechanisms are independent from each other and not located in the same line. An angle detector is used to monitor an included angle of the light-transmitting lens with respect to the outgoing direction of the light source, when the light-transmitting lens is not perpendicular to the outgoing direction of the light source, the light-transmitting lens is controlled to be perpendicular to the outgoing direction of the light source.
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公开(公告)号：US11739913B2
公开(公告)日：2023-08-29
申请号：US17457015
申请日：2021-11-30
发明人： Weikai Jiang
IPC分类号： F21V14/00 , F21V17/02 , F21W131/406
CPC分类号： F21V17/02 , F21W2131/406
摘要： An effect device easy to mount includes an annular frame, effect sheets and fixing assemblies for pivoting the effect sheets in the annular frame. The fixing assembly has a first insertion pin and a second insertion pin respectively mounted at two ends of the effect sheets and used for pivoting. The first insertion pin is sleeved with an elastic element and an end portion of the first insertion pin penetrates through a mounting hole in the annular frame. A first protruding portion protrudes out of an end, close to the effect sheets, of the first insertion pin. One end of the elastic element abuts against the first protruding portion, and the other end of the elastic element abuts against an inner side wall of the annular frame. The second insertion pin is fixed in a pivoting mode.
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公开(公告)号：US11582853B2
公开(公告)日：2023-02-14
申请号：US17333247
申请日：2021-05-28
发明人： Weikai Jiang
IPC分类号： H05B47/115 , F21V21/15 , F21V23/04 , F21W131/406
摘要： 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.
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公开(公告)号：US11536440B2
公开(公告)日：2022-12-27
申请号：US17514605
申请日：2021-10-29
发明人： Weikai Jiang
IPC分类号： F21V14/08 , F21V19/02 , F21W131/406 , F21V11/18 , F21V11/10 , F21V11/08 , F21V11/16 , F21V11/12
摘要： A beam shading device capable of accurately positioning includes a substrate, a plurality of shading blades mounted on the substrate, and driving mechanisms for driving the shading blades to move. The substrate is provided with a first light-passing hole through which beams pass, the plurality of shading blades are arranged around the periphery of the first light-passing hole, and the driving mechanisms drive the shading blades to move back and forth between blocking and opening the first light-passing hole. Each shading blade is configured with at least two driving mechanisms, and each driving mechanism includes a driving gear and a driving plate. The driving plate is hinged with the shading blade, and the driving plate is provided with a rack that meshes with the driving gear.
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公开(公告)号：US20220228737A1
公开(公告)日：2022-07-21
申请号：US17364251
申请日：2021-06-30
发明人： Weikai JIANG
摘要： A simple light-blocking and air-exhausting device includes a ventilation plate and a light-blocking plate arranged oppositely and spaced apart from each other. The ventilation plate is provided with an air vent formed by die-cutting the ventilation plate, and vertical projection of the light-blocking plate on the ventilation plate overlaps the air vent. The vertical projection of the light-blocking plate on the ventilation plate overlaps the air vents on the ventilation plate, so that the light-blocking plate can prevent light from leaking out of the air vents, while air flow can flow out from a gap between the light-blocking plate and the ventilation plate.
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