A lighting device that can be used, for example, in the show-business and entertainment sector includes an electrically powered light generator, as well as electrical circuitry configured to produce electrical signals for driving the light generator. The electrical circuitry has stored within it an electrical marker signal uniquely associated to the lighting device, and a visual display unit is coupled to the electrical circuitry, where the visual display unit is configured to display the electrical marker signal as a visually recognizable optical mark, such as a QR code.

A method for controlling a subtractive color mixing system in a light fixture, comprising a light source, the subtractive color mixing system comprising a plurality of subtractive color filters, and an additional filter. The method is for emitting light having a target color upon having traversed the additional filter, such as upon having traversed the subtractive color mixing system and the additional filter and optionally being emitted from the light fixture. The method comprising receiving target information indicative of, such as defining, the target color, calculating a target control setpoint for each subtractive color filter within the plurality of subtractive color filters based on the target information, and calibration data, which for a plurality of sets of calibration control setpoints is indicative of an emitted color, controlling each of the subtractive color filters according to each calculated target control setpoint for each of the subtractive color filters.

A variable frost system (100) includes a first arm assembly (102) that includes a first arm structure (114), a first frost component (116), and a second frost component (118), where the first frost component (116) and the second frost component (118) are attached to the first arm structure (114). The variable frost system (100) includes further a second arm assembly (104) that includes a second arm structure (120), a third frost component (122), and a fourth frost component (124), where the third frost component (122) and the fourth frost component (124) are attached to the second arm structure (120). The first arm assembly (102) and the second arm assembly (104) are movable such that one or both of the first frost component (116) and the second frost component (118) and one or both of the third frost component (122) and the fourth frost component (124) are positioned to provide an overall frost lighting effect to a light beam (206).

A light shading element includes a base plate having a light-transmitting hole, a light shading blade for at least partially blocking the light-transmitting hole, and first and second driving mechanisms pivotally connected to the light shading blade to drive its movement in a plane. The first and second driving mechanisms are pivotally connected to the light shading blade through a first pivot point and a second pivot point, respectively. The light shading blade is configured to selectively move close to and away from the light-transmitting hole to respectively block and unblock the light-transmitting hole. The first pivot point moves along an arcuate trajectory under driving of the first driving mechanism, and the second pivot point is capable of moving along another arcuate trajectory around the first pivot point under driving of the second driving mechanism, when the first pivot point is at any position along the arcuate trajectory.

A light shading device having curved guidance includes a light passing hole for light beams passing therethrough and at least one pair of shading blades arranged opposite one another. Each pair of shading blades respectively have a shading edge for shading light beams at a side close to each other, while the two ends of the side away from each other are respectively connected with a double-link arm which includes a first connecting rod and a second connecting rod pivoting each other, the other end of the first connecting rod is connected to the corresponding shading blade, and the other end of the second connecting rod is connected to a driving element. A guide element is further provided for limiting a guide point on each shading blade to move along a curved path on the plane where the corresponding shading blade is located.

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.

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.

The present disclosure provides a light fixture which comprises a first element forming a first compartment housing at least one light source, and a second element suspending the first element, where the second element forms a second compartment. The first and second elements are rotationally attached to each other allowing rotation of the first element relative to the second element. A closed space extends through the first compartment and the second compartment. A fan is arranged in the closed space to move air between the first and second compartments.

This present disclosure pertains to the domain of lighting fixtures, particularly a light stand. The light stand includes a light stand base furnished with a first driving mechanism, as well as a support frame designed for the installation of a light source component. The output terminal of the first driving mechanism is linked to the underside of the support frame, facilitating its ability to rotate the support frame relative to the light stand base, and thus rotate the light source component. By integrating the first driving mechanism into the light stand base and connecting its output terminal to the bottom of the support frame, the mechanism effectively rotates the support frame, subsequently rotating the light source. This design fulfills the objective of automatically adjusting the light source component's position.

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.