Chinese Optics Letters, Volume. 10, Issue 12, 122201(2012)

Optical design of high performance f ingerprint scanner with large capture size

Wei Huang

We present an optical design for a fingerprint scanner that addresses the challenges involved in capturing the prints of rolling fingers. A rolling fingerprint scanner requires a high performance distortion free system with big object space numerical aperture (0.022) and larger capture size (40 \times 40 (mm)). We show how these requirements can be achieved with the approach of optical and computational hybrid distortion correction. In addition, dark background illumination is utilized to increase fingerprint contrast.

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Wei Huang. Optical design of high performance f ingerprint scanner with large capture size[J]. Chinese Optics Letters, 2012, 10(12): 122201

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Paper Information

Category: Optical Design and Fabrication

Received: Sep. 4, 2012

Accepted: Oct. 9, 2012

Published Online: Nov. 28, 2012

The Author Email:

DOI:10.3788/col201210.122201

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