A luminaire includes multiple light-emitting elements (LEEs); a base supporting the LEEs; and a first wall and a second wall each extending along a first direction from a respective first end facing the LEEs to a respective second end. The first and second walls have light-reflective surfaces facing each other. In one or more cross-sectional planes parallel to the first direction, the light-reflective surfaces of the first and second walls have first portions that curve in opposite directions, second portions that are parallel, and third portions that curve in like directions. The first portions are arranged facing the LEEs to provide an input aperture that receives light from the LEEs. The third portions are arranged to provide an exit aperture that outputs output light into an ambient environment. The first and second walls are configured to propagate light from the input aperture to the exit aperture.

A lighting device is disclosed in the present disclosure. The lighting device includes a support assembly, an illuminant assembly, and a switch assembly. The illuminant assembly is connected to the support assembly and capable of being rotated to the support assembly. When the illuminant assembly is rotated to a position at which an angle between the illuminant assembly and the support assembly is less than or equal to a first angle threshold, the switch assembly turns to an on-state. In this way, the lighting device has a function of a switch.

An illumination device with a projector includes a base, a shade having a side-surface shade surrounding an outer circumferential side of the base, an upper-surface shade disposed above the base, and a lower-surface shade disposed below the base, a projector which is installed on the base, and projects image light toward the side-surface shade, and an illumination unit for illuminating the upper-surface shade and the lower-surface shade from inside the shade. The side-surface shade is provided with a mirror surface part for reflecting light which shines on the side-surface shade from the outside. The mirror surface part is provided with an image light transmission part which the image light enters. The image light transmission part is a semi-transmissive mirror. Therefore, the image light can be projected via the semi-transmissive mirror, but a projection opening of the projector is not seen from the outside.

A luminaire (100) includes a base (102) supporting multiple light-emitting elements (LEEs) (122); and a first wall (150-i) and a second wall (150-o) each extending along a first direction (101). The first and second walls (150-i, 150-o) have light-reflective surfaces facing each other and forming a hollow channel (152). The light-reflective surfaces have first portions (120) that curve in opposite directions, second portions (130) that are parallel, and third portions (140) that curve in like directions. The first portions (120) are arranged facing the LEEs (110) to provide an input aperture (122) that receives light from the LEEs (110). The third portions (140) are arranged to provide an exit aperture (142) that outputs output light into an ambient environment. The first and second walls (150-i, 150-o) are configured to propagate light from the input aperture (122) to the exit aperture (142).

A portable lighting tower includes a frame, a mast coupled to the frame including a light, a plurality of legs coupled to the frame, each leg including an actuator operable to deploy and retract the respective leg, a controller operatively coupled to the actuators and configured to control operation of the actuators, and a tilt sensor operably coupled to the controller and configured to generate a tilt signal indicative of a tilt of the portable lighting tower relative to horizontal. The controller is configured to determine a grade of the portable lighting tower based on the tilt signal, determine an extended length of each leg based on the determined grade of the portable lighting tower, and, after determining the extended length of each leg, operate each of the actuators to deploy the respective leg from a storage configuration to the determined extended length.

A luminaire (100) includes a base (102) supporting multiple light-emitting elements (LEEs) (122); and a first wall (150-i) and a second wall (150-o) each extending along a first direction (101). The first and second walls (150-i, 150-o) have light-reflective surfaces facing each other and forming a hollow channel (152). The light-reflective surfaces have first portions (120) that curve in opposite directions, second portions (130) that are parallel, and third portions (140) that curve in like directions. The first portions (120) are arranged facing the LEEs (110) to provide an input aperture (122) that receives light from the LEEs (110). The third portions (140) are arranged to provide an exit aperture (142) that outputs output light into an ambient environment. The first and second walls (150-i, 150-o) are configured to propagate light from the input aperture (122) to the exit aperture (142).

A portable lighting tower includes a frame, an adjustable mast, multiple legs, a controller, and a battery pack. The adjustable mast is coupled to the frame and includes a light. The multiple legs each include an actuator operable to deploy and retract the respective leg. The controller is operatively coupled to the light and the actuators and configured to control operation of the light and the actuators. The battery pack is electrically coupled to the controller, the light, and the actuators. The light is dimmable between a maximum setting and a minimum setting, and the controller operates each of the linear actuators to deploy or retract the respective leg response to a user input.

An illumination device with a projector includes a base, a shade having a side-surface shade surrounding an outer circumferential side of the base, an upper-surface shade disposed above the base, and a lower-surface shade disposed below the base, a projector which is installed on the base, and projects image light toward the side-surface shade, and an illumination unit for illuminating the upper-surface shade and the lower-surface shade from inside the shade. The side-surface shade is provided with a mirror surface part for reflecting light which shines on the side-surface shade from the outside. The mirror surface part is provided with an image light transmission part which the image light enters. The image light transmission part is a semi-transmissive mirror. Therefore, the image light can be projected via the semi-transmissive mirror, but a projection opening of the projector is not seen from the outside.

A lighting device is disclosed in the present disclosure. The lighting device includes a support assembly, an illuminant assembly, and a switch assembly. The illuminant assembly is connected to the support assembly and capable of being rotated to the support assembly. When the illuminant assembly is rotated to a position at which an angle between the illuminant assembly and the support assembly is less than or equal to a first angle threshold, the switch assembly turns to an on-state. In this way, the lighting device has a function of a switch.

A portable lighting tower includes a frame, an adjustable mast, multiple legs, a controller, and a battery pack. The adjustable mast is coupled to the frame and includes a light. The multiple legs each include an actuator operable to deploy and retract the respective leg. The controller is operatively coupled to the light and the actuators and configured to control operation of the light and the actuators. The battery pack is electrically coupled to the controller, the light, and the actuators. The light is dimmable between a maximum setting and a minimum setting, and the controller operates each of the linear actuators to deploy or retract the respective leg response to a user input.