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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 18 — Aug. 30, 2010
  • pp: 18932–18944

Design and fabrication of a fingerprint imager with compact LED illumination and compact imaging optics

Jae Young Joo, Do-Kyun Woo, Soon Sub Park, and Sun-Kyu Lee  »View Author Affiliations


Optics Express, Vol. 18, Issue 18, pp. 18932-18944 (2010)
http://dx.doi.org/10.1364/OE.18.018932


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Abstract

In this study, we presented a light-emitting diode-based (LED) miniaturized optical pattern imager for slim mobile phone application. To meet volume constraints, we designed a miniaturized compact illuminating and imaging optical component. The objective was to minimize optical loss using several nano- and micro-fabrication methods. After integration into a single optical body, the prototype imager–with dimensions of 6.8 × 2.2 × 2.5 mm and a weight of 0.4 g–demonstrated clear feasibility in measuring 2D micropatterns with widths of 50 and 10 μm.

© 2010 OSA

OCIS Codes
(110.2970) Imaging systems : Image detection systems
(130.3120) Integrated optics : Integrated optics devices
(220.1920) Optical design and fabrication : Diamond machining
(220.4000) Optical design and fabrication : Microstructure fabrication
(230.3670) Optical devices : Light-emitting diodes
(110.2945) Imaging systems : Illumination design
(080.4295) Geometric optics : Nonimaging optical systems

ToC Category:
Imaging Systems

History
Original Manuscript: June 10, 2010
Revised Manuscript: August 14, 2010
Manuscript Accepted: August 18, 2010
Published: August 20, 2010

Citation
Jae Young Joo, Do-Kyun Woo, Soon Sub Park, and Sun-Kyu Lee, "Design and fabrication of a fingerprint imager with compact LED illumination and compact imaging optics," Opt. Express 18, 18932-18944 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-18-18932


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