KR920007329B1 - 지문인식기용 광학장치 - Google Patents
지문인식기용 광학장치 Download PDFInfo
- Publication number
- KR920007329B1 KR920007329B1 KR1019900007896A KR900007896A KR920007329B1 KR 920007329 B1 KR920007329 B1 KR 920007329B1 KR 1019900007896 A KR1019900007896 A KR 1019900007896A KR 900007896 A KR900007896 A KR 900007896A KR 920007329 B1 KR920007329 B1 KR 920007329B1
- Authority
- KR
- South Korea
- Prior art keywords
- hologram
- fingerprint
- prism
- collimator
- wave
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title claims description 16
- 238000003384 imaging method Methods 0.000 claims description 25
- 238000010586 diagram Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/88—Image or video recognition using optical means, e.g. reference filters, holographic masks, frequency domain filters or spatial domain filters
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1324—Sensors therefor by using geometrical optics, e.g. using prisms
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Optics & Photonics (AREA)
- Human Computer Interaction (AREA)
- Image Input (AREA)
- Collating Specific Patterns (AREA)
- Diffracting Gratings Or Hologram Optical Elements (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Holo Graphy (AREA)
Abstract
Description
Claims (3)
- 레이저(1)로부터 발산하는 구면파(10)로부터 평면파(11)를 얻기위한 콜리미터용 홀로그램(2)과, 상기 평면파(11)를 산란시키는 디퓨저(3)와, 디퓨저(3)에 의해 산란된 빔(12)을 지문형상에 따라 반사시키는 프리즘(4)과, 프리즘(4)에 의해 반사된 빔(12)으로부터 집속된 구면판(13)를 얻기위한 지문결상용 홀로그램(5)과, 상기 홀로그램(5)에 의해 집속된 지문형상을 전기적 신호로 바꾸는 면적CCD(6)를 순서대로 설치하고, 상기 프리즘(4)의 수직면에는 지문 결상용 홀로그램(5)과 차흡판(7)을 직접 접촉되게 구성한 것을 특징으로 하는 지문인식기용 광학장치.
- 제1항에 있어서, 상기 지문결상용 홀로그램(5)은 프리즘(4)빗변의 중심Co로부터 θ1의 각도를 이루면서 일정거리 L1인 곳에 접합되며, 면적CCD(6)는 지문결상용 홀로그램(5)의 중심 C1로부터 θ2의 각도를 이루면서 일정거리 L2인 위치에 설치되고,θ1=θ2, 25°<θ1, θ2<35°, L1 Cosθ1=2nL2 Cosθ2(n : 프리즘의 굴절율)의 조건을 갖도록 구성한 것을 특징으로 하는 지문인식기용 광학 장치.
- 제1항 또는 제2항에 있어서, 상기 콜리미터용 홀로그램(2)은 참조광으로서 P1에서 중심 C2으로부터 θ4의 각도를 이루면서 일정거리 ιo인 곳에 발산하는 구면파(18)와 물체광으로서 평면파(17)를 갖는 홀로그램을 형성하고, 지문결상용 홀로그램(5)은 참조광으로서 P2에서 중심 C3로부터 θ5의 각도를 이루면서 일정거리 ι1인곳에 발산하는 구면파(15)와 P3에서 중심 C3로 θ6의 각도를 이루면서 일정거리 ι2인곳에 집속되는 집속구면파(16)를 갖는 홀로그램을 형성하며, θ3=θ4, Lo=ιo, θ1=θ5, θ2=θ6, L1=nι1, L2=ι2, 25°<θ5, θ6〈35°(단, θ3는 레이저에서 콜리미터용 홀로그램으로 발산되는 레이저빔의 발산각도, Lo는 레이저로부터 콜리미터용 홀로그램까지의 거리)의 조건을 갖도록 구성한 것을 특징으로 하는 지문인식기용 광학장치.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019900007896A KR920007329B1 (ko) | 1990-05-30 | 1990-05-30 | 지문인식기용 광학장치 |
DE69118439T DE69118439T2 (de) | 1990-05-30 | 1991-05-22 | Optisches Gerät für ein Fingerabdruckerkennungssystem |
EP91304710A EP0459712B1 (en) | 1990-05-30 | 1991-05-22 | Optical apparatus for fingerprint recognition system |
US07/704,228 US5189482A (en) | 1990-05-30 | 1991-05-22 | Optical apparatus for fingerprint recognition system |
JP3125985A JPH0642258B2 (ja) | 1990-05-30 | 1991-05-29 | 指紋認識用光学装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019900007896A KR920007329B1 (ko) | 1990-05-30 | 1990-05-30 | 지문인식기용 광학장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR910020596A KR910020596A (ko) | 1991-12-20 |
KR920007329B1 true KR920007329B1 (ko) | 1992-08-31 |
Family
ID=19299578
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019900007896A KR920007329B1 (ko) | 1990-05-30 | 1990-05-30 | 지문인식기용 광학장치 |
Country Status (5)
Country | Link |
---|---|
US (1) | US5189482A (ko) |
EP (1) | EP0459712B1 (ko) |
JP (1) | JPH0642258B2 (ko) |
KR (1) | KR920007329B1 (ko) |
DE (1) | DE69118439T2 (ko) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5619586A (en) * | 1990-12-20 | 1997-04-08 | Thorn Emi Plc | Method and apparatus for producing a directly viewable image of a fingerprint |
DE4429829A1 (de) * | 1993-08-23 | 1995-03-02 | Gim Ges Fuer Innovation Und Ma | Verfahren und Anordnung zur Mustererkennung |
US5895902A (en) * | 1993-09-07 | 1999-04-20 | Ziarno; Witold A. | Method of contributions management, and device and networks therefor |
US6032070A (en) | 1995-06-07 | 2000-02-29 | University Of Arkansas | Method and apparatus for detecting electro-magnetic reflection from biological tissue |
US5737071A (en) * | 1996-08-16 | 1998-04-07 | Identicator Corporation | Method and apparatus for enhancing live-scan fingerprint reader images |
US5995640A (en) * | 1996-10-23 | 1999-11-30 | International Business Machines Corporation | System and method for determining if a fingerprint image contains an image portion representing a dry fingerprint impression |
US5883971A (en) * | 1996-10-23 | 1999-03-16 | International Business Machines Corporation | System and method for determining if a fingerprint image contains an image portion representing a smudged fingerprint impression |
US6005963A (en) * | 1996-10-23 | 1999-12-21 | International Business Machines Corporation | System and method for determining if a fingerprint image contains an image portion representing a partial fingerprint impression |
US6072895A (en) * | 1996-12-13 | 2000-06-06 | International Business Machines Corporation | System and method using minutiae pruning for fingerprint image processing |
US6856383B1 (en) | 1997-09-05 | 2005-02-15 | Security First Corp. | Relief object image generator |
US6501846B1 (en) | 1997-11-25 | 2002-12-31 | Ethentica, Inc. | Method and system for computer access and cursor control using a relief object image generator |
US6870946B1 (en) | 1998-08-06 | 2005-03-22 | Secugen Corporation | Compact optical fingerprint capturing and recognition system |
US6381347B1 (en) | 1998-11-12 | 2002-04-30 | Secugen | High contrast, low distortion optical acquistion system for image capturing |
US6324020B1 (en) * | 1999-08-04 | 2001-11-27 | Secugen Corporation | Method and apparatus for reduction of trapezoidal distortion and improvement of image sharpness in an optical image capturing system |
KR20020028754A (ko) * | 2001-05-04 | 2002-04-17 | 안준영 | 액정표시겸 지문입력 패널 |
KR100432490B1 (ko) * | 2001-09-17 | 2004-05-22 | (주)니트 젠 | 광학식 지문취득 장치 |
JP2005536792A (ja) * | 2002-08-21 | 2005-12-02 | セキユジエン・コーポレイシヨン | 改良された撮像表面を有するtft検出装置 |
US7844083B2 (en) | 2004-06-18 | 2010-11-30 | Kyushu Institute Of Technology | Method for acquiring personal identification data, personal identification method, apparatus for acquiring personal identification data, and personal identification apparatus |
JP4872082B2 (ja) | 2006-06-07 | 2012-02-08 | 国立大学法人九州工業大学 | レーザー光による眼底血流測定を利用した個人認証方法及び個人認証装置 |
KR100879381B1 (ko) * | 2007-06-04 | 2009-01-20 | 테스텍 주식회사 | 프리즘을 이용한 광학식 지문획득장치 |
WO2009122931A1 (ja) | 2008-04-03 | 2009-10-08 | 国立大学法人九州工業大学 | 皮下血流測定を利用した個人認証方法及び個人認証装置 |
JP5277365B2 (ja) | 2008-04-06 | 2013-08-28 | 国立大学法人九州工業大学 | 個人認証方法及びそれに使用する個人認証装置 |
US20090296997A1 (en) * | 2008-06-03 | 2009-12-03 | James Rocheford | Method and apparatus for securing a computer |
JP6257252B2 (ja) | 2012-10-04 | 2018-01-10 | アイビー コリア リミテッドIB Korea Ltd. | 隆起紋様の抗ショック読取 |
US9228824B2 (en) | 2013-05-10 | 2016-01-05 | Ib Korea Ltd. | Combined sensor arrays for relief print imaging |
KR101967033B1 (ko) | 2014-04-10 | 2019-04-08 | 아이비코리아 유한회사 | 터치-가동 디바이스용 생체인식 센서 |
CN106127172B (zh) * | 2016-06-29 | 2019-08-09 | 中控智慧科技股份有限公司 | 一种非接触3d指纹采集的装置及方法 |
JP7241063B2 (ja) * | 2017-08-22 | 2023-03-16 | ルミレッズ ホールディング ベーフェー | 生体認証のためのレーザスペックル分析 |
CN109959981A (zh) * | 2017-12-23 | 2019-07-02 | 苏州迈瑞微电子有限公司 | 光学传感器载片 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4728186A (en) * | 1985-03-03 | 1988-03-01 | Fujitsu Limited | Uneven-surface data detection apparatus |
JPS63221484A (ja) * | 1987-03-11 | 1988-09-14 | Fujitsu Ltd | 凹凸情報検出装置 |
CA1319433C (en) * | 1988-06-23 | 1993-06-22 | Masayuki Kato | Uneven-surface data detection apparatus |
KR930005570B1 (ko) * | 1989-11-13 | 1993-06-23 | 주식회사 금성사 | 홀로그램(hologram)을 이용한 지문인식장치 |
-
1990
- 1990-05-30 KR KR1019900007896A patent/KR920007329B1/ko not_active IP Right Cessation
-
1991
- 1991-05-22 US US07/704,228 patent/US5189482A/en not_active Expired - Lifetime
- 1991-05-22 EP EP91304710A patent/EP0459712B1/en not_active Expired - Lifetime
- 1991-05-22 DE DE69118439T patent/DE69118439T2/de not_active Expired - Fee Related
- 1991-05-29 JP JP3125985A patent/JPH0642258B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0573666A (ja) | 1993-03-26 |
KR910020596A (ko) | 1991-12-20 |
EP0459712B1 (en) | 1996-04-03 |
JPH0642258B2 (ja) | 1994-06-01 |
DE69118439D1 (de) | 1996-05-09 |
EP0459712A2 (en) | 1991-12-04 |
US5189482A (en) | 1993-02-23 |
DE69118439T2 (de) | 1996-08-08 |
EP0459712A3 (en) | 1993-04-21 |
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