Lighting panel for a display
First Claim
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1. A panel for lighting a display comprising:
- a lighting panel made of a transparent plastic and having rectangular both surfaces one of which is a reflection surface and the other is a discharge surface;
an incident surface formed by beveling one of corners of the lighting panel;
an edge light provided corresponding to the incident surface;
a plurality of prisms circularly formed on the reflection surface of the lighting panel;
edge lines of the prisms being concentrically arranged with the edge light at a predetermined interval;
each of the prisms having a vertical angle θ
comprising a first inclination angle θ
1 on the edge light side and a second inclination angle θ
2 opposite to the first inclination angle θ
1;
wherein there is a following relationship between the first inclination angle θ
1 and the second inclination angle θ
2;
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Abstract
There is provided a lighting panel having rectangular both surfaces one of which is a reflection surface and the other is a discharge surface, an edge light provided at a corner of the lighting panel. A plurality of prisms are circularly formed on the reflection surface of the lighting panel. Each of the prisms has a vertical angle θ comprising a first inclination angle θ1 on the edge light side and a second inclination angle θ2 opposite to the first inclination angle θ1. There is a following relationship between the first inclination angle θ1 and the second inclination angle θ2
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Citations
4 Claims
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1. A panel for lighting a display comprising:
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a lighting panel made of a transparent plastic and having rectangular both surfaces one of which is a reflection surface and the other is a discharge surface;
an incident surface formed by beveling one of corners of the lighting panel;
an edge light provided corresponding to the incident surface;
a plurality of prisms circularly formed on the reflection surface of the lighting panel;
edge lines of the prisms being concentrically arranged with the edge light at a predetermined interval;
each of the prisms having a vertical angle θ
comprising a first inclination angle θ
1 on the edge light side and a second inclination angle θ
2 opposite to the first inclination angle θ
1;
wherein there is a following relationship between the first inclination angle θ
1 and the second inclination angle θ
2;
- View Dependent Claims (2, 3, 4)
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Specification
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Current AssigneeCitizen Electronics Company Limited
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Original AssigneeCitizen Electronics Company Limited
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InventorsMiyashita, Junji
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Primary Examiner(s)Dudek, James A.
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Application NumberUS10/372,166Publication NumberTime in Patent Office434 DaysField of Search349/65, 362/31, 362/235, 362/26, 362/555US Class Current349/65CPC Class CodesG02B 6/0038 Linear indentations or groo...
