Lighting device for vehicle
First Claim
1. A lighting device for a vehicle comprising:
- a light source; and
a light conducting rod having;
a lens through which light radiated from the light source enters; and
a first light outlet surface through which light entering inside through the lens exits to an outside of the light conducting rod,wherein the lens includes;
a light inlet surface refracting in parallel the light entering from the light source; and
a second light outlet surface collecting parallel light passing through the light inlet surface to a portion of the light conducting rod, wherein the portion of the light conducting rod is located at a first focus of light passing through the second light outlet surface, anda reflective body reflecting the light collected at the portion of the light conducting rod toward the first light outlet surface of the light conducting rod,wherein the reflective body is installed on the surface opposite the light-emitting surface of the light conducting rod,wherein the light inlet surface and the second light outlet surface are formed so as to have a curvature of a hyperbola, andwherein the light source is positioned at a second focus of the light inlet surface.
1 Assignment
0 Petitions
Accused Products
Abstract
A lighting device for a vehicle may include one or more light sources and one or more light conducting rods including a lens through which light radiated from the light source enters and a light outlet surface through which light entering an inside through the lens exits to an outside, in which the lens includes a light inlet surface configured to refract the light entering from the light source in parallel and a light outlet surface configured to collect parallel light passing through the light inlet surface to an upper portion of the light conducting rod, and a reflective body configured to reflect the light collected at the upper portion of the light conducting rod toward the light outlet surface of the light conducting rod may be installed on the light conducting rod, thereby improving light efficiency.
8 Citations
11 Claims
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1. A lighting device for a vehicle comprising:
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a light source; and a light conducting rod having; a lens through which light radiated from the light source enters; and a first light outlet surface through which light entering inside through the lens exits to an outside of the light conducting rod, wherein the lens includes; a light inlet surface refracting in parallel the light entering from the light source; and a second light outlet surface collecting parallel light passing through the light inlet surface to a portion of the light conducting rod, wherein the portion of the light conducting rod is located at a first focus of light passing through the second light outlet surface, and a reflective body reflecting the light collected at the portion of the light conducting rod toward the first light outlet surface of the light conducting rod, wherein the reflective body is installed on the surface opposite the light-emitting surface of the light conducting rod, wherein the light inlet surface and the second light outlet surface are formed so as to have a curvature of a hyperbola, and wherein the light source is positioned at a second focus of the light inlet surface. - View Dependent Claims (2, 3)
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4. A lighting device for a vehicle, including:
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a light source; a first reflective body shaped of a parabola and reflecting incident light emitted from the light source; a second reflective body shaped of a parabola and reflecting the incident light reflected from the first reflective body in parallel; and two light conducting rods changing a direction of light reflected from the second reflective body to be incident in parallel to a longitudinal direction of the two light conducting rods, wherein a focus of the parabola of the first reflective body is the same as a focus of the parabola of the second reflective body; and wherein the light source is positioned at a focus of a parabola forming a hyperbola together with the parabola of the first reflective body. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11)
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Specification