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
Links
- 238000000034 method Methods 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 4
- 201000009310 astigmatism Diseases 0.000 description 7
- 230000003287 optical effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000004075 alteration Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012937 correction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Landscapes
- Collating Specific Patterns (AREA)
- Image Input (AREA)
- Diffracting Gratings Or Hologram Optical Elements (AREA)
- Holo Graphy (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
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 |
EP86301434A EP0194783B1 (de) | 1985-03-03 | 1986-02-28 | Gerät zum Ermitteln von Daten unebener Flächen |
DE8686301434T DE3688339T2 (de) | 1985-03-03 | 1986-02-28 | Geraet zum ermitteln von daten unebener flaechen. |
CA000503027A CA1246179A (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 |
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 (de) | 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 (de) |
Families Citing this family (3)
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 |
-
1985
- 1985-09-27 JP JP60212571A patent/JPS6274177A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6274177A (ja) | 1987-04-04 |
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