| 摘要 |
<p>A system (10) for enhancing the quality of an image (18) on a screen (16, 78) is provided. The system (10) typically includes an illumination source (12) configured to produce light (60, 68) and direct such light (60, 68) along an optical path (14), and a time-varying focus device (36, 76) disposed in the optical path (14) and configured to periodically alter incident light (72) to enhance the quality of the image (18) on the screen (16, 78).</p> |
