| 摘要 |
A lens system (10) includes a lens arrangement (11) and a mirror (12) on a printed circuit board (PCB) (5) and, when reading text, the text is registered by placing the reading opening (3) of the pen against the text, while light emitting diodes (7a,7b) emit light towards the text. The ray pattern (20) of reflected light moves toward the lens arrangement and then to the mirror, angling it perpendicular to the area sensor (9). |
