| 摘要 |
<p>A conical light focusing system comprises at least one cone or frustum of cone shaped light reflecting plate (1) and a light collecting pillar (2) provided at the axis of the light reflecting plate (1). The inner surface of the light reflecting plate (1) is provided with a light reflecting layer. The larger opening of the light reflecting plate (1) is the light entrance port of the light focusing system. The conical light focusing system has a simple structure, and is easy to manufacture. And the intensity of the collected light is related to the area of the light reflecting plate (1), so that the light focusing system is easy to design and regulate.</p> |
