| 摘要 |
<p>An optical scanning device (10) for generating a data signal representative of an object (14) which is scanned comprising a light source (16) for illuminating the object (14); an imaging assembly (28) for projecting imaging light (30) from the object onto an image plane (II); a plurality of linear photosensor arrays (52, 54, 56) positioned at the image plane (II) for generating light sensing signals (12) indicative of the intensity of light in different spectral regions impinged thereon; a transparent plate (70) positioned in adjacent overlying relationship with the photosensor arrays (52, 54, 56); a plurality of filter coatings (82, 84, 86) disposed on different regions of the transparent plate in alignment with the plurality of photosensor arrays for filteringly transmitting imaging light in the predetermined different spectral regions to the different photosensor arrays. <IMAGE></p> |
