A light-transmitting structure for use as a building block or panel, and a related method of fabrication. The structure includes a composite of a primary
building material and one or more light-transmitting elements. The primary
building material may have structural and / or insulative characteristics. The light-transmitting elements extend from one surface of the primary
building material to the other and preferably make up a small part of the bulk of the structure. One or more light-concentrating elements are positioned on one or both surfaces of the structure and are configured to concentrate incoming light rays to the light-transmitting elements. The light-transmitting elements may be optical fibers,
optical film in a parallel or intersecting arrangements, or other suitable geometries. The light-concentrating elements may be spherical, aspherical, or other geometries suitable for enabling
light transmission through the primary building material via the light-transmitting elements. The structure may be fabricated in a variety of ways. In one process, the light-transmitting and light-concentrating elements may be formed separately and joined together in an aligned manner. In another process, both elements may be formed at the same time, either using a preformed mold,
extrusion or shaping and selectively curing portions of a fluid with optical characteristics. The panel may be used to introduce light and or heating sunshine through the structure with little
impact on its structural and / or insulative characteristics.