| 摘要 |
<p>An apparatus for illuminating and imaging a surface (14) includes a two-dimensional array of LEDs (120) for providing uniform illumination to the surface, the LEDs being mounted on a planar surface (110) with a centrally defined aperture (112) and a CCD-based camera (210) with appropriate lensing (220) for obtaining an image of the illuminated surface and providing a signal representative of that obtained image to a processing unit, the CCD-based camera lensing being disposed through the centrally defined aperture in the planar surface of the LED array, and the LED array and CCD-camera lensing being disposed inside an opaque shroud (300).</p> |
