Abstract: An illumination apparatus, including: a light source assembly, a circuit board, a fin assembly, and a fan. The fin assembly includes a plurality of fins arranged at intervals. The plurality of fins each has a first thermal connection end and a second thermal connection end arranged oppositely to each other, as well as a first thermal dissipation end and a second thermal dissipation end arranged oppositely to each other. The light source assembly is in thermal connection with the first thermal connection end, and the circuit board is in thermal connection with the second thermal connection end. The airflow generated by the fan is enabled to pass through the fins and flow out from the first thermal dissipation end and the second thermal dissipation end to drive a heat of the first thermal connection end and the second thermal connection end out of the fin assembly.

Abstract: The invention discloses a lamp with a zoom lens, which comprises the zoom lens and a lamp body, the lamp body is connected with the zoom lens, the zoom lens comprises: a rear fixed group, comprising a first biconvex lens; a zooming group, comprising a first concave-convex meniscus lens and a plano-convex lens; a compensating group, comprising a biconcave meniscus lens and a second concave-convex meniscus lens; and a front fixed group, comprising a second biconvex lens. The four groups are sequentially arranged in the direction of an optical axis; and the lamp realizes zooming by movement of the zooming group and the compensating group in the direction of the optical axis. A change of a pattern or a beam size is realized; the number of lenses is reduced; zooming of the zoom lens is realized only by movement of the zooming group and the compensating group.

Abstract: The present disclosure provides a lighting device and a power switching circuit. The power switching circuit of the lighting device includes a plurality of power input circuits and a logic control circuit. The logic control circuit is configured to receive a first electrical signal, a second electrical signal, or a third electrical signal, and control a first-switching circuit electrically connected with an Nth power input terminal to be turned on according to the first electrical signal, control the first-switching circuit electrically connected with the Nth power input terminal to be turned off according to the second electrical signal, and control a first-switching circuit electrically connected with first to (N?1)th power input terminals to be turned off according to the third electrical signal; N is a positive integer less than or equal to a number of the power input circuits.

Abstract: This application provides a lighting accessory and a photographic lamp. The lighting accessory includes a light-transmission member, a light-shielding member and a connection assembly. The light-transmission member and the light-shielding member are both in a shape of a hollow cylinder. The light-transmission member includes a cylindrical first light-transmission surface and a flat second light-transmission surface blocked at one end of the first light-transmission surface. An inner cavity of the hollow cylinder of the light-transmission member is configured to accommodate a lamp body. The light-shielding member is arranged round an outer side of the first light-transmission surface and is spaced from the first light-transmission surface in a radial direction. The light-transmission member, the light-shielding member and the lamp body are connected through the connection assembly.

Abstract: The present application disclosed a pan-tilt structure and a lighting device, and the pan-tilt structure includes a base, a ball, a ball sleeve, and a locking mechanism, a side of the base is provided with a support surface; the ball is arranged on the support surface; the ball sleeve includes a locking member connected to the base, the locking member is arranged around the ball, and the locking member is provided with a first locking portion and a second locking portion that are arranged in an extending direction along the locking member, and an adjustment gap is provided between the first locking portion and the second locking portion and configured for disconnecting the locking member; an adjustment assembly of the locking mechanism is connected to the first locking portion and the second locking portion.

Abstract: The embodiment of the present disclosure provides a time code synchronization method, which includes following steps of: determining a target master node and one or more target slave nodes of a network system among the plurality of nodes; periodically sending a data packet to the one or more target slave nodes by the target master node, wherein the data packet includes a first time code and serial number information of the target master node; compensating the first time code according to the serial number information to obtain a second time code, and synchronizing the second time code by the one or more target slave nodes.

Abstract: The present application discloses a lighting device and a lighting system. The lighting device includes: a first housing, internally provided with a processing circuit; a first conductive connector, disposed on the first housing and electrically connected with the processing circuit; a trigger switch, disposed on the first housing and spatially spaced from the first conductive connector, the trigger switch being electrically connected with the processing circuit; and a first connecting component, disposed on the first housing, and capable of selectively matching and being fixed to a second connecting component on a control device so that when the first connecting component and the second connecting component are mechanically fixed, a trigger component of the second connecting component may correspond to the trigger switch of the first connecting component, and the first conductive connector may be in contact with a second conductive connector on the control device.

Abstract: The present invention relates to the technical field of lighting, and particularly discloses a clamping structure and a light device with the same. The clamping structure includes a male seat, an elastic limiting component, a female seat and a pushing aid, the male seat is provided with clamping protrusions, the elastic limiting component is disposed on the male seat, the female seat is provided with clamping slots, one of the clamping slots is internally provided with a limiting slot, the female seat is further provided with a first through hole penetrating to the limiting slot, the pushing aid movably penetrates through the first through hole, and the pushing aid is configured to make the elastic limiting component clamped into or separated from the limiting slot.

Abstract: A single audio interface signal switching circuit and a single audio interface switching device are provided by the embodiments of the present disclosure, which sets only one single audio interface and uses a working mode switching module to control a driver chip to generate different drive signals, in order to control working states of an audio signal output module, a time code input module, and a time code output module electrically connected with the driver chip. Since there is only one audio interface, and a working mode of the single audio interface switching device is controlled by the working mode switching module, so that a volume of the single audio interface switching device is reduced.

Abstract: A lighting device includes a light source and a power switching circuit including a plurality of power input circuits. Each of the power input circuits includes a power input terminal and a switch control circuit connected in series between the power input terminal and the light source. A control terminal of Nth switch control circuit controls the Nth switch control circuit to be turned off according to a first electrical signal input by first to (N-1)th power input terminals. The control terminal of the Nth switch control circuit controls the Nth switch control circuit to be turned on according to a second electrical signal being input by Nth power input terminal, and controls the first to (N-1)th switch control circuits to be turned off. The N is a positive integer greater than 1. A power switching circuit is also provided.

Abstract: A lighting device is provided and includes: a lamp main housing including a containing cavity, wherein a recess in communication with the containing cavity and a snap-fit structure configured to connect an optical accessory are disposed at an end of the lamp main housing, and a position of the recess corresponds to a position of the snap-fit structure; a heat dissipation device disposed in the containing cavity; a light source in heat-conduction connection with the heat dissipation device, and located inside of the containing cavity or the recess; a front-end housing including a throughout hollow cavity, wherein an end of the front-end housing is disposed on the light source, and another end of the front-end housing faces an outer side of the recess and passes through the recess; wherein light emitted by the light source passes through the hollow cavity of the front-end housing and is emitted outward.

Abstract: A photography lamp includes a housing assembly, a heat dissipation assembly, and a light source assembly. The housing assembly includes a lamp barrel and a rear cover, a main air inlet is disposed on the rear cover, and an air outlet grille is disposed on a side wall of the lamp barrel close to the light outlet end. The heat dissipation assembly includes a fan, the air outlet side of the fan is spaced from the light source assembly, a spacing is arranged between the air outlet side of the fan and the light source assembly, and the spacing is always facing the air outlet grille in the direction of the central axis of the lamp barrel. The photography lamp can improve heat dissipation efficiency of photographic lighting fixtures.

Abstract: The present application discloses a microphone, including: a housing; at least two sound-pickup members respectively disposed on the housing; a control circuit board disposed in the housing and in electrical connection to the at least two sound-pickup members respectively; and a switch member configured for triggering the control circuit board to select one or more of the sound-pickup members for collecting an external sound source. The present application addresses the shortcoming that it is necessary to change the direction of the microphone according to the needs of the scene, realizes the flexible selection and configuration of multiple sound-pickup members, and enriches the use scene of the operator. Once the recording site is set up, recordings with different requirements can be realized by switching circuit, so as to reduce the movement of recording equipment, which is suitable for recording equipment such as a camera and a camcorder.

Abstract: The present application relates to the technical field of electronic circuits, and provides a charge circuit, a control box and a luminaire. The charge circuit includes a control circuit and at least one constant current charge circuit. The constant current charge circuit is electrically connected to the rechargeable battery. The control circuit is used to obtain the specification information of the rechargeable battery, and configure the corresponding charging parameters to be sent to the corresponding constant current charge circuit, so as to charge the rechargeable battery through the constant current charge circuit.

Abstract: A lamp includes a housing, a heat sink, a light source and at least a bracket. The heat sink is disposed within the housing. The light source is connected with the heat sink. The bracket is disposed within the housing, and the bracket includes a main body and a first fixing portion arranged along the outer edge of the main body. The main body of the bracket connected to a side surface of the heat sink is connected to the housing through the first fixing portion to dispose the heat sink in the housing. When the bracket is fixedly connected to the inner wall of the housing, the heat sink can be firmly installed inside the housing and it is not easy to loosen during use, so that the heat sink can continuously and stably dissipate for the lamp.

Abstract: A light fixture includes a housing with a hollow inner cavity, and a first ventilation region and a second ventilation region are arranged on the housing; a heat sink disposed in the hollow inner cavity of the housing, wherein the heat sink includes a plurality of fins disposed side-by-side corresponding to the first ventilation region and the second ventilation region; and a blocking mechanism disposed between the heat sink and an inner wall of the housing to divide the hollow inner cavity into a first cavity and a second cavity. The plurality of fins are disposed in the first cavity, the first cavity and the second cavity are isolated from each other. A gap is formed between any two adjacent fins, and the first ventilation region the gap and the second ventilation region are communicating to form a channel. The light fixture has good heat dissipation and waterproof effects.