| 摘要 |
A contact image sensor module includes an image sensor, a lens unit arranged over the image sensor, a glass plate arranged over the lens unit, and a light source. The lens unit includes a plurality of rod lenses. The glass plate is wedge-shaped and elongated. The glass plate includes a first light interface being rectangular and elongated, and a second light interface and an incident face respectively extending from two opposite longer sides of the first light interface. The incident face faces the light source. The first light interface is substantially perpendicular to the rod lenses. The second light interface is below the first light interface and faces top sides of the rod lenses. Light of the light source is first directed by the glass plate to the document, then reflected by the document to the lens unit via the glass plate and finally reaching the image sensor.
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