Compact-thin contact image sensor
First Claim
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1. A kind of compact-thin contact image sensor is composed of:
- light sourse, light pipe, lens and a strip-type sensor. In which, the light pipe is multibend, comprising an incidence panel, the first ray guiding interface, a fingerprint contact interface, the second ray guiding interface and an image reflecting panel. And it can be positioned on the support base to reduce the volume of image senser.
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Abstract
The present invention provides a kind of compact-thin contact image sensor, particularly a fingerprint optical input apparatus, which can extract fingerprint image with a strip-type sensor. And it can produce fingerprint image with high definition, and shorten its size with the multibend light pipe. In addition, it has an enough guiding length for forming a strip area distributed uniformly, and the light would project on the strip-type fingerprint pressed on a transparent panel from some angle and reflect to the strip-type sensors by total internal reflection. Lastly, the forest fingerprint image would be extracted by moving the finger.
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14 Claims
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1. A kind of compact-thin contact image sensor is composed of:
- light sourse, light pipe, lens and a strip-type sensor. In which, the light pipe is multibend, comprising an incidence panel, the first ray guiding interface, a fingerprint contact interface, the second ray guiding interface and an image reflecting panel. And it can be positioned on the support base to reduce the volume of image senser.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
Specification