ILLUMINATION ASSEMBLY AND SYSTEM
First Claim
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1. An illumination assembly, comprising:
- a reflective substrate;
a first light extraction surface comprising an azimuthal beam widening topography; and
a light source unit comprising one or more light sources capable of producing illumination light, wherein the light source unit is between the first light extraction surface and the reflective substrate, and wherein the first light extraction surface faces the light source unit.
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Abstract
Illumination assemblies and systems using same are disclosed. The illumination assembly can include a reflective substrate, and a light source unit including one or more light sources capable of producing illumination light. The assembly can further include a first light extraction surface including an azimuthal beam widening topography, where the first light extraction surface is positioned such that the light source unit is between the first light extraction surface and the reflective substrate. The first light extraction surface can face the light source unit.
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Citations
30 Claims
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1. An illumination assembly, comprising:
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a reflective substrate;
a first light extraction surface comprising an azimuthal beam widening topography; and
a light source unit comprising one or more light sources capable of producing illumination light, wherein the light source unit is between the first light extraction surface and the reflective substrate, and wherein the first light extraction surface faces the light source unit. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An illumination assembly, comprising:
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a reflective substrate;
a first light extraction surface comprising an array of closely packed conical structures, wherein the array comprises substantially no flat land areas between the conical structures wherein a base of the conical structures lies in an x-y plane of the surface and an apex of the conical structures lies outside the x-y plane of the surface; and
a light source unit comprising one or more light sources capable of producing illumination light, wherein the light source unit is between the first light extraction surface and the reflective substrate, and wherein the apexes of the conical structures in the array on the first light extraction surface are directed toward the light source unit. - View Dependent Claims (8, 9, 10, 11)
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12. An illumination assembly, comprising:
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a reflective substrate;
a first light extraction surface comprising at least one faceted surface, wherein the faceted surface has an in-plane curvature in the x-y plane; and
a light source unit comprising one or more light sources capable of producing illumination light, wherein the light source unit is between the first light extraction surface and the reflective substrate, and wherein the first light extraction surface faces the light source unit. - View Dependent Claims (13, 14, 15)
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16. An illumination assembly, comprising:
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a reflective substrate;
a first light extraction surface comprising means for producing a difference of azimuthal angle Δ
β
of at least 15°
with respect to a beam normally incident on the light extraction surface; and
a light source unit comprising one or more light sources capable of producing illumination light, wherein the light source unit is between the first light extraction surface and the reflective substrate, and wherein the first light extraction surface faces the light source unit. - View Dependent Claims (17, 18, 19)
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20. A directly illuminated display system, comprising:
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a display panel comprising an illumination side; and
an illumination assembly disposed to the illumination side of the display panel, the illumination assembly comprising;
a reflective substrate;
a light source unit comprising one or more light sources capable of producing illumination light; and
a first light extraction surface between the first light extraction surface and the reflective substrate, wherein the first light extraction surface faces the light source unit, and wherein the first light extraction surface has an azimuthal beam widening topography. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification