This application provides a power supply system. The power supply system includes a first device and a second device. The first device may be one of a control device and a film-and-television light, and the second device may be the other of the control device and the film-and-television light. The first device includes a first housing, a first coupler socket, a power supply circuit and a first set of contacts. The second device includes a second housing, a second coupler socket, a power receiving circuit, and a second set of contacts. In the power supply system. The power supply circuit in the first device and the power receiving circuit in the second device can be electrically connected through the first set of contacts in stalled on the first coupler socket and the second set of contacts installed on the second coupler socket.

Spotlight (1) for illuminating a film, studio, stage, event and/or theatre environment, comprising: a light space (11) having an optical axis (17) which defines a light output direction; a light source (12) which is disposed in the light space (11); a housing (13) which delimits the light space (11) and extends in the light output direction; a main reflector (14) which delimits the light space, extends transversely with respect to the light output direction and, relative to the light output direction, is disposed upstream of the light source (12); an output optical unit (15) which is disposed at a light exit side of the light space (11) and, relative to the light output direction, is disposed downstream of the light source (12) and outputs the light of the spotlight (1); an auxiliary reflector (16), wherein the auxiliary reflector (16) is disposed movably, such that it can be positioned at least at a first position between the main reflector (14) and the light source (12) or at a second position between the light source (12) and the output optical unit (15).

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.

A light unit configured to emit at least one wide-aperture light beam including a transmitter system, configured to emit at least one light beam, the beam(s) being emitted in an angular range of 360? around the transmitter system; a reflector system surrounding the transmitter system, arranged to receive each light beam propagating from the transmitter system and to reflect each light beam received towards the outside of the light unit. The reflector system includes a frame surrounding the transmitter system and bearing a reflecting surface extending around the transmitter system between two opposite edges of the frame, the reflector system and/or the transmitter system are mounted such that they can be moved relative to one another and such that they can be positioned relative to one another so as to modify the interception area of the beam emitted by the transmitter system along the reflecting surface of the reflector system.

The systems herein include a support structure and multiple light sources mounted to the support structure. The light sources are configured to project light onto a recording stage to light a specified video scene that is to be recorded on the recording stage. These systems also include a perforated layer that includes an arrangement of apertures. The perforated layer has an inward face directed toward the lighting sources and an outward face directed toward the recording stage. The inward face of the perforated layer includes a surface layer that is more reflective than the surface layer of the outward face of the perforated layer. These systems also include a controller that modifies the light emission profile of the light sources, including changing color balance, brightness, time dependence, and/or spatial variation over the light emissive surface of the light sources. Various other apparatuses and recording stage devices are also disclosed.

A set (100) of lighting components includes a first lighting component (10) having a first connecting surface (40) of the first lighting component and a second lighting component (11) having a first connecting surface (42) of the second lighting component. A first connecting element (54) of a connecting mechanism is provided on the first connecting surface (40) of the first lighting component, and a second connecting element (52) of a connecting mechanism is provided on the first connecting surface (42) of the second lighting component. The second connecting element is complementary to the first connecting element, so that the first lighting component (10) can be detachably connected to the second lighting component (11).

A luminaire includes an enclosure, an air valve, and a chamber. The enclosure includes a sealed cover and light beam emitting components. The air valve is air coupled between the enclosure and the chamber. The chamber includes a drying agent and has an opening with a membrane completely covering the opening. The membrane passes air while reducing the passage of water droplets in the air. The air valve blocks air passage between the enclosure and the chamber when closed. A method for testing to determine adequate sealing of an enclosure of a luminaire includes closing an air valve to seal the enclosure from outside air, activating a heat-generating component, determining whether an air pressure in the enclosure increases by more than a threshold value, and sending a signal indicating a result of the determination. The method includes deactivating the heat-generating component and opening the air valve.

A cable assembly suitable for distributing both power and low voltage control signals to a plurality of discrete devices is disclosed. Power and control signal input plugs are attached by cable to a housing. A first set of power and control signal output connectors is attached by flexible cable to the same housing. A second set of power and control signal output connectors is attached to the housing. Corresponding contacts of all three power connectors and of all three control signal connectors having the same function are made electrically common, such that power and control signals applied to the plugs are available at both output connectors. The structure reduces the number of components and connections required to share power and data relative to prior art methods.

There is presented an illumination device (244) comprising a plurality of light sources (103) emitting light along an optical axis (247); a light collector (241) adapted to collect light from the light sources, wherein the plurality of light sources (103) comprises: A first group (404) of light sources comprising a plurality of light sources, which can be driven to emit white light, a second group (405) of light sources comprising a plurality of light sources which can be driven, such as can only be driven, to emit non-white light (such as green light), wherein the plurality of light sources can be driven so that a total D.sub.uv value of light emitted from the illumination device is closer to zero than each of a first D.sub.uv value of light emitted from the illumination device originating from the first group (404) of light sources and a second D.sub.uv value of light emitted form the illumination device originating from the second group (405) of light sources, and a luminous efficacy of the second group (405) of light sources is higher than a luminous efficacy of the first group (404) of light sources.

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 K.sub.1, K.sub.2 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 K.sub.1 and K.sub.2 enabling the relative spectral power distribution to fall within the range.