| 摘要 |
<p>The device according to the present invention includes an optical sensing device including first and second lightguides positioned side by side, and preferably covered as a unit with a layer of transmissive material, wherein the lightguides are adapted to detect or sense the presence, location, identity and shape of external media through modulation of the intensity of light coupled from one lightguide to the other through the transmissive material.</p> |
