JPH0252310B2 - - Google Patents

Info

Publication number
JPH0252310B2
JPH0252310B2 JP60212571A JP21257185A JPH0252310B2 JP H0252310 B2 JPH0252310 B2 JP H0252310B2 JP 60212571 A JP60212571 A JP 60212571A JP 21257185 A JP21257185 A JP 21257185A JP H0252310 B2 JPH0252310 B2 JP H0252310B2
Authority
JP
Japan
Prior art keywords
light
hologram
uneven surface
detector
flat plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP60212571A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6274177A (ja
Inventor
Shin Eguchi
Seigo Igaki
Fumio Yamagishi
Hiroyuki Ikeda
Jushi Inagaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP60212571A priority Critical patent/JPS6274177A/ja
Priority to US06/833,276 priority patent/US4728186A/en
Priority to DE8686301434T priority patent/DE3688339T2/de
Priority to EP86301434A priority patent/EP0194783B1/en
Priority to FI860862A priority patent/FI88752C/fi
Priority to CA000503027A priority patent/CA1246179A/en
Priority to KR1019860001470A priority patent/KR900006061B1/ko
Publication of JPS6274177A publication Critical patent/JPS6274177A/ja
Publication of JPH0252310B2 publication Critical patent/JPH0252310B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Diffracting Gratings Or Hologram Optical Elements (AREA)
  • Holo Graphy (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Collating Specific Patterns (AREA)
  • Image Input (AREA)
JP60212571A 1985-03-03 1985-09-27 凹凸面情報検出方法 Granted JPS6274177A (ja)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP60212571A JPS6274177A (ja) 1985-09-27 1985-09-27 凹凸面情報検出方法
US06/833,276 US4728186A (en) 1985-03-03 1986-02-27 Uneven-surface data detection apparatus
DE8686301434T DE3688339T2 (de) 1985-03-03 1986-02-28 Geraet zum ermitteln von daten unebener flaechen.
EP86301434A EP0194783B1 (en) 1985-03-03 1986-02-28 Uneven-surface data detection apparatus
FI860862A FI88752C (fi) 1985-03-03 1986-02-28 Datadetektionsapparat foer en ojaemn yta och personidentifieringssystem
CA000503027A CA1246179A (en) 1985-03-03 1986-02-28 Uneven-surface data detection apparatus
KR1019860001470A KR900006061B1 (ko) 1985-03-03 1986-03-03 요철면 정보 검출장치

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60212571A JPS6274177A (ja) 1985-09-27 1985-09-27 凹凸面情報検出方法

Publications (2)

Publication Number Publication Date
JPS6274177A JPS6274177A (ja) 1987-04-04
JPH0252310B2 true JPH0252310B2 (enrdf_load_stackoverflow) 1990-11-13

Family

ID=16624901

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60212571A Granted JPS6274177A (ja) 1985-03-03 1985-09-27 凹凸面情報検出方法

Country Status (1)

Country Link
JP (1) JPS6274177A (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6437934A (en) * 1987-08-04 1989-02-08 Meteoola Syst Kk Fingerprint detector
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

Also Published As

Publication number Publication date
JPS6274177A (ja) 1987-04-04

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