Chinese Optics Letters, Volume. 10, Issue 12, 122201(2012)
Optical design of high performance f ingerprint scanner with large capture size
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," Chin. Opt. Lett. 10, 122201 (2012)
Category: Optical Design and Fabrication
Received: Sep. 4, 2012
Accepted: Oct. 9, 2012
Published Online: Nov. 28, 2012
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