A lighting assembly includes a lighting tower. The lighting tower includes a plurality of layers of lighting elements, where each layer of lighting elements is configured to provide a different angle of emitted light onto a parabolic reflector with respect to light emitted from another layer of lighting elements onto the parabolic reflector when activated.

A lighting device is provided that has a light source arrangement with a plurality of semiconductor-based light sources in the form of light-emitting diodes. The light sources are bundled or collimated such that they each emit light in differently directed light cones with adjacent light cones overlapping. The lighting device has an adjusting device for adjustment of the direction of illumination and an actuating circuit connected to the adjusting device. The adjusting device adjusts intermediate stages for which the light-emitting diodes of adjacent and overlapping light cones operate and with varying light intensity in such a way the focal point of the light field produced by the light-emitting diodes lies between the focal points of adjacent light cones.

In one aspect, light fixtures are described herein employing waveguide components for delivery of directional light to wall surfaces and/or surfaces outside the general down lighting distribution of the fixture. A light fixture comprises a light source component in an optic assembly, the light source component comprising a first light source providing a down lighting distribution and a second light source coupled to a waveguide component of the optic assembly providing one or more lateral lighting distributions from the light fixture. The waveguide component comprises at least one waveguide optic comprising a body and a light extraction face, the light extraction face forming one or more sidewall portions of the optic assembly.

A lighting fixture and method resist bio-fouling of a window of the lighting fixture when submerged and exposed to biological organisms within a surrounding environment. Ultraviolet radiation is directed to the window from a source within the fixture, enabling transmission of the ultraviolet radiation through the window to an outer surface of the window to combat biological organisms to which the outer surface of the window is exposed when submerged, and allowing light from a source behind the window to be projected effectively through the window and into the surrounding environment.

A light fixture includes at least one elongated strut and a socket formed on each strut. Each strut includes a first end, a second end, and an arcuate portion extending between the first end and the second end. An axis extends between the first end and the second end. The arcuate portion extending at least partially around the axis. The socket includes a ridge and a surface supporting a first light-emitting element. The surface is recessed relative to the ridge such that the light emitted by the light-emitting element is directed at an acute angle relative to the axis.

A heat sink, a separator, and a lighting device applying the same are provided. The heat sink comprises: a housing, formed around an axis, wherein the housing has a first open end and a second open end along the axis, and a holding cavity connecting the two open ends. The housing comprises a first portion and a second portion, both formed around the axis, wherein the first portion comprises several device mounting portions distributed around the axis. The second portion comprises an outer fin set disposed around the axis in an outer peripheral region, and an inner fin set disposed around the axis in an inner peripheral region; the first portion is closer to the first open end than the second portion is to the first open end, and the outer fin set extends toward the second open end; each fin extends toward the axis.

The lamp comprises a light source configured to emit light, a support structure that supports the light source, and an optical component designed to change the characteristics of the light emitted from the light source. The support structure is configured to rotate both the light source and the optical component about a first axis, and the light source and the optical component are designed to move linearly relative to each other along a second axis.

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 one-piece optical member with a plurality of secondary lenses over corresponding LED light sources, the one-piece optical member comprises (a) each with an outward lens flange surrounding a light-transmitting portion which is formed by a plurality of layers and has an asymmetric inner surface defining a pair of cavities with at least one of the plurality of layers at least partially extending between the pair of cavities, a portion of the inner-surface which defines one of the cavities is at least partially formed by another of the plurality of layers which is bonded to the at least one layer extending between the pair of cavities. The polymeric materials may be different; e.g., the innermost lens layer may be of an LSR material. The invention is also a method of manufacturing the one-piece optical member and an LED light fixture with the one-piece member over a plurality of LED light sources spaced on a circuit board.

In a first aspect, a wallpack lighting fixture is provided herein for use with solid state lighting and which is configurable to selectively utilize different quantities, up to a maximum, of solid state lighting modules, allowing for different levels and patterns of light output. In a second aspect, a wallpack lighting fixture is provided herein for use with solid state lighting which includes a main housing and a secondary enclosure removably mountable to the main housing. In a further aspect, a wallpack lighting fixture is provided herein for use with solid state lighting which includes a housing having a wall mountable back panel and a door portion hingeably, and detachably, connected to the back panel.