| 摘要 |
<p>The object of the invention is to provide an illumination apparatus for an opaque digitizer tablet. The illumination apparatus can be used to convert the opaque digitizer into a back-lit digitizer. The illumination apparatus includes an aperture fluorescent lamp (29) located peripheral to the portion of the working surface used for placement of an object to be digitized and includes a non-optical-fiber flat light conductor (24) (a slab waweguide) located on top of and covering the portion of the working surface used for the object to be digitized. Light conducted from the lamp (29) emerges from the top surface of the non-optical-fiber flat light conductor (24) for reflecting scattered light, that emerges from a bottom surface of the non-optical-fiber flat light conductor (24), toward the object to be digitized.</p> |
