A lighting system includes a light source, a light redirection element, and a movement mechanism coupled to the light source and the light redirection element. The movement mechanism is configured to simultaneously or stepwise move the light source and the light redirection element between a top lighting position and an interlighting position.

Apparatus and methods for deployment of fixtures. The apparatus may include a system for controlling deployed fixtures. The system may receive user commands different devices in different formats. The fixtures may be independently addressable. The fixtures may be magnetically supported by a fixture support. A brace may join two or more fixture supports without reducing space available to support fixtures. The brace may join a fixture support to a fixture support accessory. An accessory may include a variable-angle junction. The fixture may include articulating joints for controlling the direction of a beam. The fixture may include a lens having an electrically controllable beam spread angle. The fixture may be stowable in the fixture support. The fixture may be slidable along a cord to adjust a height of the fixture. The fixture may include an extendable ring. The system may coordinate motions of the fixtures to follow a target. The fixture may include an elongated board. The elongated board may include a non-polar power socket.

Apparatus and methods for deployment of fixtures. The apparatus may include a system for controlling deployed fixtures. The system may receive user commands different devices in different formats. The fixtures may be independently addressable. The fixtures may be magnetically supported by a fixture support. A brace may join two or more fixture supports without reducing space available to support fixtures. The brace may join a fixture support to a fixture support accessory. An accessory may include a variable-angle junction. The fixture may include articulating joints for controlling the direction of a beam. The fixture may include a lens having an electrically controllable beam spread angle. The fixture may be stowable in the fixture support. The fixture may be slidable along a cord to adjust a height of the fixture. The fixture may include an extendable ring. The system may coordinate motions of the fixtures to follow a target. The fixture may include an elongated board. The elongated board may include a non-polar power socket.

A winding mechanism includes a housing, an inner cylinder and a wire. The housing is formed with an accommodating space therein. An inner surface of the housing is formed with an internal thread structure. The inner cylinder is disposed in the accommodating space and defines a central axis. An outer surface of the inner cylinder is formed with an external thread structure. The external thread structure is cooperated with the internal thread structure. The inner cylinder is capable of displacing along the central axis by rotating relative to the housing. The external thread structure includes at least two contact portions and at least two non-contact portions, and gaps are formed between the non-contact portions of the external thread structure and the internal thread structure. An end of the wire is connected to the inner cylinder and is wound along the external thread structure of the inner cylinder.

A winding mechanism includes a housing, an inner cylinder and a wire. The housing is formed with an accommodating space therein. An inner surface of the housing is formed with an internal thread structure. The inner cylinder is disposed in the accommodating space and defines a central axis. An outer surface of the inner cylinder is formed with an external thread structure. The external thread structure is cooperated with the internal thread structure. The inner cylinder is capable of displacing along the central axis by rotating relative to the housing. The external thread structure includes at least two contact portions and at least two non-contact portions, and gaps are formed between the non-contact portions of the external thread structure and the internal thread structure. An end of the wire is connected to the inner cylinder and is wound along the external thread structure of the inner cylinder.

A downlight apparatus includes a downlight housing, a drawstring module and a light module. The downlight housing has a surface rim and a downlight holder. The surface rim defines a rim opening. The surface rim conceals an installation cavity. The holder defines a holder space connected to the rim opening. The downlight housing is attached in the installation cavity with a fixing unit. The drawstring module is used for collecting a pullable wire. The pullable wire is electrically connected to a power source. The light module has a light source and a light housing. The light housing is connected to a bottom end of the pullable wire for electrically connecting the power source to the light source. The light module is pulled out from the holder space to an adjustable distance from the rim opening with the pullable wire connecting the light module to the downlight housing.

A downlight apparatus includes a downlight housing, a drawstring module and a light module. The downlight housing has a surface rim and a downlight holder. The surface rim defines a rim opening. The surface rim conceals an installation cavity. The holder defines a holder space connected to the rim opening. The downlight housing is attached in the installation cavity with a fixing unit. The drawstring module is used for collecting a pullable wire. The pullable wire is electrically connected to a power source. The light module has a light source and a light housing. The light housing is connected to a bottom end of the pullable wire for electrically connecting the power source to the light source. The light module is pulled out from the holder space to an adjustable distance from the rim opening with the pullable wire connecting the light module to the downlight housing.

An adjustable-height pendant luminaire is proposed which comprises the following: a luminaire head, a ceiling mounting unit from which the luminaire head is suspended by means of cables, a height adjustment unit arranged in the ceiling mounting unit, a sensor arrangement having at least one sensor arranged on the luminaire head, wherein the at least one sensor is configured as a near-field sensor designed to detect a hand of a user in the proximity of the sensor for the detecting of gestures as non-contact control commands, and a control unit in communicative connection with the sensor arrangement and the height adjustment unit. The control unit is configured to send a control command to the height adjustment unit for changing the vertical position of the luminaire head upward or downward.

An adjustable-height pendant luminaire is proposed which comprises the following: a luminaire head, a ceiling mounting unit from which the luminaire head is suspended by means of cables, a height adjustment unit arranged in the ceiling mounting unit, a sensor arrangement having at least one sensor arranged on the luminaire head, wherein the at least one sensor is configured as a near-field sensor designed to detect a hand of a user in the proximity of the sensor for the detecting of gestures as non-contact control commands, and a control unit in communicative connection with the sensor arrangement and the height adjustment unit. The control unit is configured to send a control command to the height adjustment unit for changing the vertical position of the luminaire head upward or downward.

A lifting apparatus for a highly-mounted device includes a main body installed at a predetermined height so that a drum for winding a wire rope and a first driving motor for giving a rotating force to the drum are installed thereto; a lifting body suspended from the wire rope and having a device coupling portion provided at a lower end thereof; an accommodation structure located at a lower portion of the main body and having an open lower portion so as to be coupled with the lifting body; a stopper installed at the accommodation structure and caught by a suspending protrusion provided to the lifting body to give an anti-falling function for the lifting body; and an upper contact point and a lower contact point respectively installed at the main body and the lifting body to make contact with each other when the lifting body is moved up.