| 摘要 |
A structural building unit comprises a hollow load-bearing body, preferably of rectangular parallelepiped shape, at least one of the faces being transmissive to electromagnetic radiation, preferably light, and the interior of the body being adapted for receiving a radiation-emitting or a radiation sensitive device. Such building units are preferably shaped and sized similar to conventional house bricks and may be incorporated in walls to provide illumination or security devices. |
