| 主权项 |
1. A light concentrator or distributor for focusing light onto a plurality of light receiving elements or for spreading and collimating light from small area light sources, comprising:
a transparent light conducting body of a transparent dielectric material, the light conducting body having a plurality of light conducting cells in an interior of the light conducting body, the plurality of light conducting cells having a shape selected from the group consisting of truncated pyramids, truncated cones, truncated paraboloids, and conical honeycombs, each shape having a major base, a minor base, and lateral surfaces that are formed as inner boundary faces within the light conducting body; wherein the inner boundary faces are capable of directing light incident to each of the light conducting cells onto one of the major and minor bases of the respective light conducting cell by diffraction, reflection, or total reflection; and wherein the inner boundary faces of the respective light conducting cell are defined by one of refraction index jumps in the light conducting body, dot-shaped structuring elements within the transparent dielectric material of the light conducting body, and nanocrack-like structuring elements within the transparent dielectric material of the light conducting body. |
