| 摘要 |
<p>The element has a surface designed such that a portion of incoming laser beam is reflected by the parabolic reflectors. The laser beam is entered into an opening of a measuring device, and deflected around 90 degrees by the reflectors. The reflectors direct the laser beam on to a sensor, where the element is cooled by air or water. The parabolic reflectors attenuates the laser beam on desired intensity. The reflected laser beam is bundled by curvature of the surface of the element.</p> |
