Fingerprint Input Module
First Claim
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1. A fingerprint input module, comprising:
- at least one prism sheet having a micro-prism array;
an image-capturing unit having a lens; and
a planar light source disposed between said prism sheet and said image-capturing unit and having a through hole in optical alignment with said lens for passage of light from said micro-prism array to said lens.
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Abstract
A fingerprint input module includes at least one prism sheet, an image-capturing unit, and a planar light source. The prism sheet has a micro-prism array. The image-capturing unit has a lens. The planar light source is disposed between the prism sheet and the image-capturing unit, and has a through hole in optical alignment with the lens for passage of light from the micro-prism array to the lens.
40 Citations
11 Claims
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1. A fingerprint input module, comprising:
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at least one prism sheet having a micro-prism array; an image-capturing unit having a lens; and a planar light source disposed between said prism sheet and said image-capturing unit and having a through hole in optical alignment with said lens for passage of light from said micro-prism array to said lens. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification