Lighting device including diffusion lenses associated with hollow cylindrical light guide portions, and display device including the lighting device
First Claim
1. A lighting device comprising:
- a housing including a bottom portion and an opening, the bottom portion including through holes;
a substrate including light sources mounted on one surface thereof, the substrate being outside of the bottom portion of the housing such that light emitted from the light sources is passed through respective through holes and radiated to the opening of the housing;
light guide portions, each of which has a cylindrical shape, provided through the through holes of the bottom portion of the housing to guide the light emitted from the light sources, respectively; and
diffusion lenses inside of the housing that diffuse light guided by the light guide portions, respectively, whereineach of the light guide portions is hollow and reflects light by an inner surface thereof to guide reflected light to an associated diffusion lens,the diffusion lenses have a diameter that is larger than a diameter of the through holes, andthe diffusion lenses cover the bottom portion around the through holes.
1 Assignment
0 Petitions
Accused Products
Abstract
A lighting device has a housing having a bottom part and an opening, the bottom part being formed with through holes, and a substrate having light sources mounted on one surface thereof, the substrate being placed outside of the bottom part of the housing such that light emitted from the light sources is passed through the respective through holes and radiated to the opening of the housing. The lighting device also has light guide parts, each of which has a cylindrical shape, inserted through the through holes of the bottom part of the housing for guiding the light emitted from the light sources, respectively, and diffusion lenses provided inside of the housing for diffusing the light guided by the light guide parts, respectively. Each of the light guide parts is hollow and configured to reflect the light by an inner surface thereof so as to guide reflected light to an associated diffusion lens.
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Citations
12 Claims
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1. A lighting device comprising:
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a housing including a bottom portion and an opening, the bottom portion including through holes; a substrate including light sources mounted on one surface thereof, the substrate being outside of the bottom portion of the housing such that light emitted from the light sources is passed through respective through holes and radiated to the opening of the housing; light guide portions, each of which has a cylindrical shape, provided through the through holes of the bottom portion of the housing to guide the light emitted from the light sources, respectively; and diffusion lenses inside of the housing that diffuse light guided by the light guide portions, respectively, wherein each of the light guide portions is hollow and reflects light by an inner surface thereof to guide reflected light to an associated diffusion lens, the diffusion lenses have a diameter that is larger than a diameter of the through holes, and the diffusion lenses cover the bottom portion around the through holes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification