An object of the present invention is to provide a fluorescent light source apparatus that is capable of efficiently cooling a fluorescent member and holding the fluorescent member at a proper position relative to a reflector and is thus capable of stably providing a high light output over a long period of time. A fluorescent light source apparatus according to the present invention has a configuration in which a fluorescent member that generates fluorescence upon application of excitation light thereto and a reflector having a reflective surface disposed so as to face an excitation light receiving surface of the fluorescent member are held by a common holding structure formed of a heat conductive material. The holding structure includes a cylindrical base part, and a heat conducting part formed so as to extend from an inner circumferential surface of the base part toward a center axis of the base part. The fluorescent member is held so as to be positioned on the center axis of the base part, on a side surface of the heat conducting part of the holding structure, the side surface facing the reflective surface of the reflector.

A light emitting device of the present invention includes a light emitting substrate including an insulating substrate, a circuit pattern layer disposed on one surface of the insulating substrate, and at least one light emitting element bonded to the circuit pattern layer, a flat heat pipe mechanism that removes heat from the light emitting substrate, a temperature of which is increased with light emission of the at least one light emitting element, and a cooling unit that cools the flat heat pipe mechanism.

One non-limiting example of an LED system for a lighting assembly includes a heat sink having a plurality of base plates. Each of the base plates has a pair of opposing edges disposed adjacent to a corresponding one of the other base plates. Additionally, each base plate has an outer face extending between the opposing edges; and the LED system further includes a plurality of LEDs attached to the outer face of each base plate. A fan is releasably attached to a bottom portion of the heat sink and configured to produce a flow of air through the heat sink from the bottom portion through a top portion of the heat sink to maintain an operating temperature of the LED system.

A multifunctional module-type light includes a light-emitting module and a supporting assembly. The light-emitting module includes at least one LED module, and a plurality of the LED modules is connected via a connecting assembly. The supporting assembly includes a supporting frame and a positioning assembly. The supporting frame is installed on the light-emitting module in the manner that the angle thereof is adjustable via the positioning assembly, and the supporting frame has installation feet for connecting the light-emitting module and a supporting plate for connecting the two installation feet. The supporting plate has a flat surface or an inclined surface, and the light-emitting module is secured on a surface via the supporting plate. Such multifunctional module-type light uses a modularized designed unit structure, which breaks the power constraints that a conventional lamp has only a single-housing.

An LED lighting system is disclosed, which generally consists of an enclosure, one or more LED modules, one or more transformers, and one or more drivers. A lamp assembly is disclosed, which generally consists of one or more vertically oriented LED chips, thermally conductive shells, and a thermally dissipating means positioned at the back of the LED chips. An LED module is disclosed, which generally consists of a lamp assembly, one or more reflectors and modules caps. A method of controlling light intensities is disclosed, which generally consists of method of decreasing light intensities in areas with little occupancy while minimizing user annoyance resulting from drastic light intensity fluctuations. A universal mounting bracket is disclosed, which generally consists of a fixture plate, mounting plate, and an adjustable means.

A modular light fixture includes an elongate light fixture base having a longitudinal axis and a plurality of light fixture modules. Each light fixture module includes a housing having an open face, and a light emitting device positioned inside the housing. The modular light fixture also includes a light emitting device driver configured for driving the light emitting devices. The light fixture modules are independently mounted to the light fixture base and extend perpendicularly from opposing sides of the light fixture base with the open faces facing a common direction to produce an initial light distribution pattern. Each light fixture module has a housing adjustment feature for independently pivoting the light fixture module about a pivot axis parallel to the longitudinal axis to modify the initial light distribution pattern. The modular light fixture includes a planar configuration in which the light fixture module housings are oriented along a common plane.

An angle adjuster is configured by disposing a first driver for driving a horizontal rotation frame (horizontal direction rotator) to rotate in the horizontal direction and a second driver for driving a vertical rotation frame (vertical direction rotator) to rotate in the vertical direction on the horizontal rotation frame. This configuration can reduce the size of the angle adjuster and a lighting apparatus with the angle adjuster.

A lighting device assembly includes a light source attached to a heat sink member, a first optic device and a mounting housing configured to be secured in or to a ceiling, wall or other object, and to hold the heat sink member. A second optic device including a second optic member is configured to receive light emitted in a first direction from the light emitting surface of the first optic device and to emit light in a second direction that is transverse to the first direction. A connection mechanism selectively connects the second optic device to the mounting housing, for selective disconnection from the mounting housing.

A task light that includes a plurality of light emitting diodes (LED's) adapted for providing a variable intensity of emitted light; a light directing member for directing light from the LED's onto a work surface; a control logic, electrically connected to a light intensity selector, an ambient light sensor, and the plurality of LED's and wherein the control logic compares the intensity of ambient light in the area surrounding the work surface with the desired intensity of light to be provided at the work surface and adjusts the supply of electrical power to the LED's so that the total of the variable intensity of emitted light and the intensity of ambient light in the area surrounding the work surface is approximately equal to the desired intensity of light to be provided at the work surface.

A light fixture has a frame with an aperture and an enclosure having a driver compartment and a junction compartment. The enclosure is movable relative to the frame. In an operation position, the driver and junction compartments are laterally displaced from the aperture and a lighting module is mountable in the aperture from a room-facing side of the light fixture. In a service position, an opening of the driver compartment is laterally aligned with the aperture such that the lighting driver is removably mountable in the driver compartment through the aperture and the opening of the driver compartment, from the room-facing side of the light fixture. In an inspection position, an opening of the junction compartment is laterally aligned with the aperture, and an interior of the junction compartment is visible through the aperture and the opening of the junction compartment, from a room-facing side of the light fixture.