| 摘要 |
The device (10) has an elongated body (12) of a rigid transparent material, an end of the body being tapered to define an inclined nearly conical peripheral surface (16), so that those light rays (B), entering into the body at a small angle with respect to the longitudinal axis of the elongated body, are reflected back into the body by the internal boundary of the inclined surface and are directed to propagate at a larger angle, whereby collimated light rays, issuing from the light guide, are dispersed. The device is particularly useful in lighting systems utilizing solar radiation as a light source. |
