Abstract: A lighting apparatus includes a circuit board and light emitting diodes (LEDs) attached to the circuit board. The LEDs are arranged in an array of row and columns and are attached to the circuit board are arranged in a single plane. A support substrate supports the circuit board. Optical elements are configured to redirect light from the plurality of LEDs. Each optical element is substantially the same as all other optical elements. Each LED is associated with a single optical element and each optical element is associated with a single LED. The lighting apparatus is configured to direct light away from the circuit board so that the light is directed so as to illuminate a substantially rectangular area that is off-center relative to the light assembly. The substantially rectangular area has an edge that is at least 14 feet in length.

Abstract: A lighting apparatus includes a circuit board and light emitting diodes (LEDs) attached to the circuit board. The LEDs are arranged in an array of row and columns and are attached to the circuit board are arranged in a single plane. A support substrate supports the circuit board. Optical elements are configured to redirect light from the plurality of LEDs. Each optical element is substantially the same as all other optical elements. Each LED is associated with a single optical element and each optical element is associated with a single LED. The lighting apparatus is configured to direct light away from the circuit board so that the light is directed so as to illuminate a substantially rectangular area that is off-center relative to the light assembly. The substantially rectangular area has an edge that is at least 14 feet in length.

Abstract: A lighting apparatus includes a circuit board and light emitting diodes (LEDs) attached to the circuit board. The LEDs are arranged in an array of row and columns and are attached to the circuit board are arranged in a single plane. A support substrate supports the circuit board. Optical elements are configured to redirect light from the plurality of LEDs. Each optical element is substantially the same as all other optical elements. Each LED is associated with a single optical element and each optical element is associated with a single LED. The lighting apparatus is configured to direct light away from the circuit board so that the light is directed so as to illuminate a substantially rectangular area that is off-center relative to the light assembly. The substantially rectangular area has an edge that is at least 14 feet in length.

Abstract: A light assembly includes a thermally conductive support structure, a plurality of light emitting diodes (LEDs) attached to a circuit board and thermally coupled to a heat sink and a single transparent substrate with a corresponding plurality of optical elements over the LEDs. Each of the optical elements include a first portion configured to direct light in a second direction, a second portion configured to direct light in a second lateral direction, and a third portion configured to direct light in a third direction.

Abstract: A lighting apparatus includes a circuit board and light emitting diodes (LEDs) attached to the circuit board. The LEDs are arranged in an array of row and columns and are attached to the circuit board are arranged in a single plane. A support substrate supports the circuit board. Optical elements are configured to redirect light from the plurality of LEDs. Each optical element is substantially the same as all other optical elements. Each LED is associated with a single optical element and each optical element is associated with a single LED. The lighting apparatus is configured to direct light away from the circuit board so that the light is directed so as to illuminate a substantially rectangular area that is off-center relative to the light assembly. The substantially rectangular area has an edge that is at least 14 feet in length.

Abstract: A lighting assembly includes a plurality of light emitting diodes (LEDs) and a plurality of optical elements, each proximate an associated one of the LEDs. Each optical element includes a first portion, a second portion which intersects with the first portion, a third portion extending beyond a region between the first portion and the second portion in a direction away from the associated LED, and a fourth portion positioned proximate the respective LED below the first, second and third portions. The first and second portions are shaped such that at least one surface normal to the first portion intersects with at least one surface normal to the second portion.

Abstract: A method can be used to illuminate a surface that includes a number of non-overlapping portions. The method includes simultaneously illuminating each of the portions so that the surface is substantially uniformly lit. Each portion is illuminated by a respective lighting assembly. Each lighting assembly includes a plurality of LEDs and a plurality of optical elements proximate the plurality of LEDs. For each lighting assembly, when all LEDs of the lighting assembly are operating, the entire portion of the surface is illuminated with an illumination level and a uniformity. Failure of one or more LEDs of the lighting assembly will cause the illumination level of light impinging the portion of the surface to decrease while the uniformity of light impinging the portion of the surface remains substantially the same.

Abstract: A light assembly includes a thermally conductive support structure configured for outdoor use. LEDs are attached to a circuit board and thermally coupled to a heat sink. A single transparent substrate overlies the LEDs and includes a number of optical elements. Each of the plurality of optical elements is configured to direct light from each LED in three primary directions. Each optical element includes a first portion, a second portion, and a third portion. The first, second and third portions of each optical element are configured to direct light from the associated LED in a first, second and third primary direction, respectively. The first primary direction is a lateral direction, the second primary direction is also a lateral direction and the third primary direction is approximately orthogonal to the first and second lateral directions.

Abstract: A lighting device includes a heat sink having fins on a first side and a mounting surface of a second side opposite the first side, a substrate attached to the mounting surface, a number of LEDs attached to the substrate, and a single transparent substrate with a number of optical elements, each optical element overlying an associated one of the LEDs. The device configured to direct light from the LEDs towards an area in a manner that does not create hot spots or result in dead spots on the area regardless of whether all of the LEDs of the plurality of LEDs or some of the LEDs of the plurality of LEDs are functional.

Abstract: A lighting device includes a heat sink having fins on a first side and a mounting surface of a second side opposite the first side. A substrate is attached to the mounting surface of the heat sink and a number of LEDs attached to the substrate. A single transparent substrate overlies all LEDs attached to the substrate. The transparent substrate includes a number of optical elements, each optical element overlying an associated one of the LEDs.

Abstract: A lighting device includes LEDs and optical elements. Each optical element is associated with one of the LEDs and each LED is associated with one of the optical elements. Each optical element includes a first portion, a second portion, and a third portion. The second portion of the optical element intersects with the first portion of the optical element in a region between the first portion of the optical element and the second portion of the optical element. The first portion of the optical element and the second portion of the optical element are shaped so that at least one surface normal of the first portion of the optical element intersects with at least one surface normal of the second portion of the optical element.

Abstract: A method can be used to illuminate a surface that includes a number of non-overlapping portions. The method includes simultaneously illuminating each of the portions so that the surface is substantially uniformly lit. Each portion is illuminated by a respective lighting assembly. Each lighting assembly includes a plurality of LEDs and a plurality of optical elements proximate the plurality of LEDs. For each lighting assembly, when all LEDs of the lighting assembly are operating, the entire portion of the surface is illuminated with an illumination level and a uniformity. Failure of one or more LEDs of the lighting assembly will cause the illumination level of light impinging the portion of the surface to decrease while the uniformity of light impinging the portion of the surface remains substantially the same.

Abstract: A lighting assembly includes an assembly body. A first lighting unit is attached to the assembly body. The first lighting unit includes a number of light emitting diodes (LEDs) and optical elements arranged over the LEDs such that each optical element overlies only one associated LED. The first lighting unit is configured to illuminate a substantially rectangular region. A second lighting unit is attached to the assembly body and spaced from the first lighting unit. The second lighting unit includes a number of LEDs and optical elements arranged over the plurality of LEDs such that each optical element overlies only one associated LED. The lighting assembly is configured to direct the light toward the substantially rectangular area such that the light illuminates the substantially rectangular area with a uniformity across the substantially rectangular area that achieves at most a 3:1 ratio of the average illumination to the minimum illumination.

Abstract: A lighting assembly includes an assembly body. A first lighting unit is attached to the assembly body. The first lighting unit includes a number of light emitting diodes (LEDs) and optical elements arranged over the LEDs such that each optical element overlies only one associated LED. The first lighting unit is configured to illuminate a substantially rectangular region. A second lighting unit is attached to the assembly body and spaced from the first lighting unit. The second lighting unit includes a number of LEDs and optical elements arranged over the plurality of LEDs such that each optical element overlies only one associated LED. The lighting assembly is configured to direct the light toward the substantially rectangular area such that the light illuminates the substantially rectangular area with a uniformity across the substantially rectangular area that achieves at most a 3:1 ratio of the average illumination to the minimum illumination.

Abstract: A lighting assembly can be used for illuminating a predetermined area. The assembly includes a number of LEDs directed toward the predetermined area and a number of lenses. Each lens is disposed over only one associated LED and is configured to direct light from that LED toward the predetermined area, such that the light from each lens is directed across the entire predetermined area. The light intensity from each lens is substantially uniform across the entire predetermined area.

Abstract: A lighting assembly includes LEDs and associated optical elements. Each optical element includes a first portion, a second portion, a third portion and a fourth portion. The second portion of the optical element intersects with the first portion of the optical element in a region between the first portion and the second portion. The first portion of the optical element and the second portion of the optical element are shaped so that at least one surface normal of the first portion intersects with at least one surface normal of the second portion. The third portion of the optical element extends beyond the region between the first portion of the optical element and the second portion of the optical element in a direction away from the associated LED. The fourth portion is positioned proximate the respective LED below the first, second and third portions.

Abstract: An apparatus includes a display surface having a substantially rectangular region with a width of twenty-four feet. The region of the display surface has visual media content displayed thereon. A first lighting unit includes a number of light emitting diodes (LEDs) and optical elements arranged over the plurality of LEDs such that each optical element overlies only one associated LED. The first lighting unit is configured to illuminate the region of the display surface so that the visual media content on the region of the display surface can be viewed without additional lighting. A second lighting unit is laterally spaced from the first lighting unit along the width of region of the display surface. The second lighting unit includes a number of LEDs and optical elements arranged over the plurality of LEDs such that each optical element overlies only one associated LED.

Abstract: A billboard includes a support structure and first and second lighting assemblies. Each lighting assembly includes a number of circuits boards arranged in a common orientation. Each circuit board of the first lighting assembly is planar and has a number of LEDs and optical elements attached thereto. The LEDs are thermally coupled to a first heat sink. The LEDs are arranged in rows on each circuit board, with each row including a number of LEDs mounted so that all of the LEDs are arranged in a common orientation. Each optical element is disposed over only one associated LED. The optical elements are arranged to direct the light across a portion of the display surface.

Abstract: A lighting assembly includes an assembly body. A first lighting unit is attached to the assembly body. The first lighting unit includes a number of light emitting diodes (LEDs) and optical elements arranged over the LEDs such that each optical element overlies only one associated LED. The first lighting unit is configured to illuminate a substantially rectangular region. A second lighting unit is attached to the assembly body and spaced from the first lighting unit. The second lighting unit includes a number of LEDs and optical elements arranged over the plurality of LEDs such that each optical element overlies only one associated LED. The lighting assembly is configured to illuminate the region so that the region can be illuminated without additional lighting and so that areas beyond edges of the region of the substantially rectangular region receive minimum illumination.

Abstract: A lighting assembly includes LEDs arranged at a surface of a substrate, and optical elements proximate the LEDs such that each optical element overlies a single LED and each LED underlies a single optical element. Each optical element includes a first part, a second part intersecting the first part such that a normal to surface of the second part intersects a normal to the surface of the first part, and a third part extending away from the associated LED beyond a region between the first and second part. The LEDs and optical elements are configured such that light from each LED is directed towards an area to be illuminated in a uniform pattern covering the area.