A lighting device having a first configuration wherein a first light source is exposed and a second light source is covered and a second configuration wherein the first light source is exposed and the second light source is exposed. The light device is enclosed in a rigid enclosure securing the lighting device in the second configuration. A power source is electrically coupled to the lighting device to provide power to the first light source and the second light source. A switch is coupled to the power source and the first and second light sources. The switch is configured to permit propagation of power from the power source to the second light source when the lighting device is in the second configuration.

A light fixture includes an enclosure having a top side and an opposing underside, and a luminaire module. The luminaire module includes a panel, a plurality of LEDs, a first reflector, and a second reflector. The panel extends along the opposing underside of the enclosure. The plurality of LEDs are coupled to the panel and arranged in at least one row. The at least one row has a first lateral side and a second lateral side. The first reflector is coupled to the panel and disposed along the first lateral side of the plurality of LEDs. The second reflector are coupled to the panel and disposed along the second lateral side of the plurality of LEDs. The panel is releasably attached to the enclosure such that replacement of the panel simultaneously replaces the plurality of LEDs, the first reflector, and the second reflector.

In embodiments of the present invention, a method and system is provided for commissioning improved intelligent, LED-based lighting systems. The LED based lighting systems may include fixtures with one or more LED light bars, integrated sensors, onboard intelligence to send and receive signals and control the LED light bars, and network connectivity to other fixtures.

A system of scalable modular LED light fixtures is provided herein for accommodating different levels of generated lighting and to accommodate different mountings.

In embodiments of the present invention, a method and system is provided for designing improved intelligent, LED-based lighting systems. The LED based lighting systems may include fixtures with one or more of rotatable LED light bars, integrated sensors, onboard intelligence to receive signals from the LED light bars and control the LED light bars, and a mesh network connectivity to other fixtures.

A headlight (1) for a healthcare worker includes: a base part (10), which has a U-shape, is configured to come into abutment, at a center part of the base part (10), with a back side of a head and neck part of a wearer, and includes a right end part (11) and a left end part (11), each of which is configured to be hung on an upper part of an ear so that the base part (10) is retained on a head; a light source device (20), which extends from both or any one of a vicinity of the end parts (11), includes LEDs as light sources, and is configured to illuminate a region in front of the head; and a controller (30) configured to control an illumination state of the light source device (20). The controller (30) is configured to light the light source device (20) when the base part (10) reaches a predetermined depression angle with a standing state of the wearer serving as a reference.

Disclosed are a light source system and a laser light source (300). The laser light source includes two groups of laser groups (20a, 20b), wherein at least one group of laser groups includes at least two lasers (21a, 21b, 21c, 21d), and the light beams (L1) generated by the two groups of laser groups are in the same direction and parallel to each other. The first projections of the two groups of laser groups on the cross section of the light beams formed by the respective emergent light rays thereof are partially overlapped with the second projections in a first direction, which first direction is the connection direction of at least two laser centres of a group of laser groups. The laser light source has the effects of being able to effectively increase the light power density and at the same time reduce the volume of the light source.

The invention provides a lighting module (100) which comprises a plurality of first light sources (101) configured for emitting first light (102) in a first predetermined direction, and at least one second light source (103) configured for emitting second light (104). The lighting module (100) further comprises a light guide (105) which comprises at least one light in-coupling portion (106) to couple at least part of the second light (104) into the light guide (105), and a plurality of light out-coupling portions (107) to couple at least part of the second light (104) out of the light guide (105). The light guide (105) is arranged to guide the second light (104) coupled into the light guide (105) at the at least one light in-coupling portion (106) via total internal reflection (108) to the plurality of light out-coupling portions (107) for generating out-coupled light in a second predetermined direction. The light guide (105) is mechanically coupled to and extends along the plurality of first light sources (101). The light out-coupling portions (107) cover a larger first area (109) than a second area (110) covered by the plurality of first light sources (101). A total luminous flux generated by the at least one second light source (103) is lower than a total luminous flux generated by the plurality of the first light sources (101). The first predetermined direction and the second predetermined direction at least partly overlap.

A luminaire includes a housing having an outer wall and a mounting wall configured to be secured to a structure. The housing further includes a compartment defined at least partially between the outer wall and the mounting wall. The compartment is configured to support a plurality of control devices. A support is coupled to the housing and supports a light emitter assembly. The support includes a plurality of fins in thermal communication with the light emitter assembly. A wall is positioned between the compartment and the plurality of fins.

A device for controlling a matrix of light sources of a luminous module for lighting the interior of the passenger compartment of a motor vehicle. The device includes a central unit configured to receive an instruction to activate one among a plurality of preset functions for lighting the passenger compartment, and functionally connected to a plurality of command devices, each of which is configured to command the activation of a group of light sources of the matrix. The central unit is configured to select a plurality of light sources of the matrix to activate to produce the lighting function, and to transmit instructions to the command devices in order to command the activation of the selected light sources.