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US 8,136,973 B2Granted
Lighting apparatus
AssigneeLG Electronics Inc.
InventorJunghoon Lee
Life of this patent
Estimating the term…
Abstract
A lighting apparatus is disclosed. The lighting apparatus includes a light source, a first reflective unit reflecting light, a second reflective unit that is positioned opposite the first reflective unit and reflects the light, and a light pipe positioned outside the first reflective unit. The light source is positioned inside the first reflective unit. The light pipe receives the light reflected by the first reflective unit or the second reflective unit to emit the light.
Claims19
A lighting apparatus comprising:
- a light source;
- a first reflective unit reflecting light, the light source being positioned inside the first reflective unit;
- a second reflective unit that is positioned opposite the first reflective unit and reflects the light;
- and
- a light pipe positioned outside the first reflective unit, the light pipe receiving the light reflected by the first reflective unit or the second reflective unit to emit the light
- wherein the second reflective unit has a cone-shape, and includes a third reflective surface corresponding to a base of the cone-shaped second reflective unit, and a fourth reflective surface corresponding to an outer surface of the cone-shaped second reflective unit, and
- wherein the third reflective surface is a spherical surface with curvature or an aspherical surface with curvature.
4 more elements
A lighting apparatus comprising:
- a light source;
- a first reflective unit reflecting light, the light source being positioned inside the first reflective unit;
- a second reflective unit that is positioned opposite the first reflective unit and reflects the light;
- a light pipe positioned outside the first reflective unit;
- a reflector positioned in an end portion of the light pipe, the reflector reflecting the light reflected by the first reflective unit or the second reflective unit;
- and
- an optical film positioned inside the light pipe, the optical film receiving the light reflected by the first reflective unit or the second reflective unit and the light reflected by the reflector to emit the light,
- wherein the second reflective unit has a cone-shape, and includes a third reflective surface corresponding to a base of the cone-shaped second reflective unit, and a fourth reflective surface corresponding to an outer surface of the cone-shaped second reflective unit, and
- wherein the third reflective surface is a spherical surface with curvature or an aspherical surface with curvature.
6 more elements
Dependencies are inferred from the claim text.