Optical panel for LED light source
DCFirst Claim
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1. An optics panel for use in a light emitting diode (LED) lighting assembly comprising:
- a plurality of LEDs disposed on a substrate and directed outward therefrom; and
a substantially transparent substrate comprising a plurality of optical elements disposed over the plurality of LEDs and configured to direct light from each of the plurality of LEDs of the lighting assembly onto a display surface external to the optics panel, the display surface having a predetermined bounded area, wherein each of the plurality of optical elements comprises a first lens element and a second lens element disposed over the first lens element, wherein the light from each of the LEDs is directed through the first lens element and the second lens element across the entire area of the display surface so that each LED evenly illuminates substantially the entire display surface with a substantially equal level of illumination from each of the LEDs.
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Abstract
An optics panel for use in a light emitting diode (LED) lighting is disclosed. A plurality of LEDs is disposed on a substrate and directed outward therefrom. A substantially transparent substrate is disposed over the plurality of LEDs and configured to direct light from each of the plurality of LEDs of the lighting assembly onto a surface having a predetermined bounded area. Light from each of the LEDs is directed by the transparent substrate across the entire area of the surface so that each LED illuminates substantially the entire surface with a substantially equal level of illumination per LED.
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Citations
33 Claims
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1. An optics panel for use in a light emitting diode (LED) lighting assembly comprising:
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a plurality of LEDs disposed on a substrate and directed outward therefrom; and a substantially transparent substrate comprising a plurality of optical elements disposed over the plurality of LEDs and configured to direct light from each of the plurality of LEDs of the lighting assembly onto a display surface external to the optics panel, the display surface having a predetermined bounded area, wherein each of the plurality of optical elements comprises a first lens element and a second lens element disposed over the first lens element, wherein the light from each of the LEDs is directed through the first lens element and the second lens element across the entire area of the display surface so that each LED evenly illuminates substantially the entire display surface with a substantially equal level of illumination from each of the LEDs. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An optics panel for use in a light emitting diode (LED) lighting assembly for illuminating a billboard that has a display surface extending between outer edges of the billboard, the optics panel comprising:
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a plurality of LEDs directed toward the display surface; and a plurality of lenses, wherein each lens is disposed over only one associated LED and is configured to direct light from that LED toward the display surface, such that the light from each lens is directed across the entire display surface of the billboard, wherein the light intensity from each lens is substantially uniform across the entire display surface. - View Dependent Claims (11, 12, 13, 14)
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15. An optics panel for use in a light emitting diode (LED) lighting assembly comprising:
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a plurality of LEDs disposed on a substrate and directed outward therefrom; and an acrylic material substrate comprising a plurality of optical elements comprising the acrylic material, the plurality of optical elements protruding out of a major surface of the acrylic material substrate, the plurality of optical elements disposed over the plurality of LEDs and configured to direct light from each of the plurality of LEDs of the lighting assembly onto a display surface external to the optics panel, wherein the light from each of the LEDs is directed by the acrylic material substrate across the entire area of the display surface so that each LED evenly illuminates substantially the entire display surface with a substantially equal level of illumination from each of the LEDs. - View Dependent Claims (16, 17, 18, 19, 20)
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21. An optics panel for a light emitting diode (LED) lighting assembly comprising:
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a plurality of LEDs disposed on a substrate and directed outward therefrom; an acrylic material substrate comprising a plurality of optical elements comprising the acrylic material, the plurality of optical elements protruding out of a major surface of the acrylic material substrate, the plurality of optical elements disposed over the plurality of LEDs and configured to direct light from each of the plurality of LEDs of the lighting assembly onto a display surface external to the optics panel, the display surface having a predetermined bounded area, wherein the light from each of the LEDs is directed by the acrylic material substrate across the entire area of the display surface so that each LED evenly illuminates substantially the entire display surface with a substantially equal level of illumination from each of the LEDs; a heat sink disposed under the substrate, wherein the substrate comprising the plurality of LEDs is disposed between the acrylic material substrate and the heat sink; and a power supply enclosure disposed on the heat sink, the power supply enclosure configured to comprise a power supply capable of supplying power to the plurality of LEDs. - View Dependent Claims (22, 23, 24, 25, 26)
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27. A method of illuminating a billboard that has a display surface extending between outer edges of the billboard using a light emitting diode (LED) lighting assembly, the LED lighting assembly comprising a plurality of LEDs and a plurality of lenses, wherein each lens is disposed over only one associated LED, the method comprising:
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directing a plurality of LEDs toward the display surface; and illuminating the display by directing light from each LED toward the display surface, such that the light from each lens is directed across the entire display surface of the billboard, wherein the light intensity from each lens is substantially uniform across the entire display surface. - View Dependent Claims (28, 29, 30)
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31. An apparatus comprising:
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a billboard having a display surface extending between outer edges of the billboard; a plurality of LEDs directed toward the display surface; and a plurality of optical elements, each optical element disposed over only one associated LED and configured to direct light from that LED toward the display surface, such that the light from each LED is directed across the entire display surface of the billboard so that, for each LED, a ratio of the average illumination from that LED across the entire display surface to the minimum illumination from that LED at any point on the display surface is 3;
1. - View Dependent Claims (32, 33)
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Specification