The present invention discloses a humidity alarm monitoring system for a stage light configured to monitor a closed chamber of the stage light comprises a humidity detection module located inside the chamber for detecting the humidity of the chamber;

a light control module connected to the humidity detection module; and a light source control module and a display module which are connected to the light control module. According to the present invention, the humidity alarm monitoring system, which is simple in structure and convenient in operation, can provide alarm and protection functions while monitoring the humidity condition of the stage light, can overcome the problems of existing stage lights such as damaging the electronic components due to excessive humidity, can improve the reliability of the light, and can also prolong the service life of the light.

The present invention discloses a humidity alarm monitoring system for a stage light configured to monitor a closed chamber of the stage light comprises a humidity detection module located inside the chamber for detecting the humidity of the chamber;

a light control module connected to the humidity detection module; and a light source control module and a display module which are connected to the light control module. According to the present invention, the humidity alarm monitoring system, which is simple in structure and convenient in operation, can provide alarm and protection functions while monitoring the humidity condition of the stage light, can overcome the problems of existing stage lights such as damaging the electronic components due to excessive humidity, can improve the reliability of the light, and can also prolong the service life of the light.

A luminaire (10) is disclosed comprising a housing (20) having a metal section (21) and incorporating an electrical component arrangement including a printed circuit board (40) having a first major surface carrying at least one light engine and a second major surface opposite the first major surface; a heatsink (30) exposed within said metal section, the heatsink having a further major surface facing the second major surface; an electrically insulating layer (50) in between the further major surface and the second major surface and having a margin (51) extending beyond each of the second major surface and the further major surface by a minimum width (W), said margin being separated from the metal section by an air gap having a minimum height (H);; and at least one electrically insulating fixing arrangement (90, 100, 110) extending through the printed circuit board and the electrically insulating layer securing the printed circuit board to the metal section.

An electronic device comprising a lens and a selector ring is disclosed. The selector ring is mounted for rotation about the lens and comprises a plurality of tabs projecting inwards towards the lens which engaging with and are held within a tab receiving groove comprising a plurality of spaced notches. Each of the notches is dimensioned to receive one of said tabs. A wave spring positioned between an annular ledge of the lens and the selector ring which biases the plurality of tabs against the groove and such that when each of the plurality of tabs is positioned adjacent a respective one of the notches, the tabs are biased into the notches thereby preventing said selector ring from being rotated. A user disengages the tabs from the notches by pressing said selector ring against the bias of the wave spring, thereby allowing the selector ring to be rotated.

An electronic device comprising a lens and a selector ring is disclosed. The selector ring is mounted for rotation about the lens and comprises a plurality of tabs projecting inwards towards the lens which engaging with and are held within a tab receiving groove comprising a plurality of spaced notches. Each of the notches is dimensioned to receive one of said tabs. A wave spring positioned between an annular ledge of the lens and the selector ring which biases the plurality of tabs against the groove and such that when each of the plurality of tabs is positioned adjacent a respective one of the notches, the tabs are biased into the notches thereby preventing said selector ring from being rotated. A user disengages the tabs from the notches by pressing said selector ring against the bias of the wave spring, thereby allowing the selector ring to be rotated.

A backlight bar includes a flexible circuit board and backlight lamp, the flexible circuit board includes a circuit board base and an electrostatic shielding structure, the electrostatic shielding structure is disposed on a first surface of the circuit board base and located in a non-marginal region, and the backlight lamp disposed on a second surface of the circuit board base, the first surface disposed opposite to the second surface. A backlight module and a display device are also provided.

A lighting device (100, 300, 400) is disclosed. The lighting device comprises a light source (110, 310, 410), an at least partially light transmitting envelope (120, 320, 420) and a dispenser (140, 340, 440). The envelope is arranged to define a sealed space (130, 330, 430) in which at least a portion of the light source is arranged. Further, the dispenser comprises a chemically reactive substance and is adapted to gradually release at least some of the chemically reactive substance to the sealed space so as to reduce contaminants and by-products that may be present in the sealed space.

A lighting device (100, 300, 400) is disclosed. The lighting device comprises a light source (110, 310, 410), an at least partially light transmitting envelope (120, 320, 420) and a dispenser (140, 340, 440). The envelope is arranged to define a sealed space (130, 330, 430) in which at least a portion of the light source is arranged. Further, the dispenser comprises a chemically reactive substance and is adapted to gradually release at least some of the chemically reactive substance to the sealed space so as to reduce contaminants and by-products that may be present in the sealed space.

There is provided a lighting device (100) comprising a housing comprising a frangible light exit window (110) and a fitting (120) including a first electrical connector (122) inside said housing. Within the housing there is a carrier assembly (130) comprising a plurality of SSL elements (132), and a second electrical connector (134) in contact with the first electrical connector (122). The second electrical connector (134) is held in contact with the first electrical connector (122) by the light exit window (110). This lighting device is relatively safe as if the light exit window (110) breaks the electrical components of the carrier assembly (130) may not be live.

There is provided a lighting device (100) comprising a housing comprising a frangible light exit window (110) and a fitting (120) including a first electrical connector (122) inside said housing. Within the housing there is a carrier assembly (130) comprising a plurality of SSL elements (132), and a second electrical connector (134) in contact with the first electrical connector (122). The second electrical connector (134) is held in contact with the first electrical connector (122) by the light exit window (110). This lighting device is relatively safe as if the light exit window (110) breaks the electrical components of the carrier assembly (130) may not be live.