Patent ID: 7357548
Filing Date: 2008-04-15
Classification: G02B

Abstract:
1. A light-guiding system comprising a plate-like light-guiding member provided with a lateral surface for coupling in light into said light-guiding member, characterized in that the ends of a number of light transmission rods are connected to said lateral surface, said light-guiding member and said light transmission rods being one integral piece of the same material, wherein said light-guiding member has a substantially flat plate-like and triangular shape, wherein a first side of the triangle comprises the lateral surface for coupling in light into said light-guiding member, wherein a second side of the triangle comprises a coupling-out surface which faces a surface of a light-emitting element for coupling in light into said light-emitting element, and wherein the third side of the triangle comprises a number of surfaces that are positioned at an angle to the direction of said third side, all said surfaces being perpendicular to the plane of said plate-like shape, further wherein said light-emitting element has a plate-like shape and is provided with means for emitting light through a front side of the plate-like shape, and wherein said light transmission rods, said light-guiding member, and said light-emitting element are one integral piece of the same material, and further comprising: one or more interstices extending lengthwise over a major portion of the coupling-out surface of said light-guiding member between said light-guiding member and said light-emitting element.