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

被引：5

作者：

Joo, Jae Young ^{[1
]}

Woo, Do-Kyun ^{[1
]}

Park, Soon Sub ^{[2
]}

Lee, Sun-Kyu ^{[1
]}

机构：

[1] Gwangju Inst Sci & Technol GIST, Dept Mechatron, Kwangju 500712, South Korea

[2] Korea Inst Ind Technol, Honam Technol Serv Div, Kwangju 500480, South Korea

来源：

OPTICS EXPRESS | 2010年 / 18卷 / 18期

关键词：

LENS; PROJECTORS; ELEMENTS; PATTERN; REGION;

D O I：

10.1364/OE.18.018932

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

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 x 2.2 x 2.5 mm and a weight of 0.4 g-demonstrated clear feasibility in measuring 2D micropatterns with widths of 50 and 10 mu m. (C) 2010 Optical Society of America

引用

页码：18932 / 18944

页数：13

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