JPS5513446A - Uneven pattern input device - Google Patents
Uneven pattern input deviceInfo
- Publication number
- JPS5513446A JPS5513446A JP8518478A JP8518478A JPS5513446A JP S5513446 A JPS5513446 A JP S5513446A JP 8518478 A JP8518478 A JP 8518478A JP 8518478 A JP8518478 A JP 8518478A JP S5513446 A JPS5513446 A JP S5513446A
- Authority
- JP
- Japan
- Prior art keywords
- full reflection
- fingerprint
- reflection beam
- input device
- interface
- 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.)
- Pending
Links
Landscapes
- Length Measuring Devices By Optical Means (AREA)
- Collating Specific Patterns (AREA)
- Image Input (AREA)
Abstract
PURPOSE: To obtain a 3-dimensional pattern input device which picks and supplies optically the uneven pattern on the soft substance such as the rubber stamp, the fingerprint or the like directly and in real time.
CONSTITUTION: Full reflection beam A is caused on interface 22 between air 21 and transparent material 20 such as the glass or the like with the incident angle exceeding critical angle Θ0, and no full reflection light is caused at the area of the interface where the rubber, the skin and the like adheres owing to the mutual refractive indexes of the media. When the fingerprints are gathered based on the above theory, parallel luminous flux 30 given from the light source enters optical device 31 featuring the transmissive and reflective properties like an orthogonal prisim or the like. And in case the beam enters slope 31c adhered to subject 32 with an incident angle more than the critical angle, the pattern information composed to the full reflection beam and non-full reflection beam can be obtained according to the fingerprint and in the form of emission light 33. This information can be supplied to processor 3 via TV camera 2.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8518478A JPS5513446A (en) | 1978-07-14 | 1978-07-14 | Uneven pattern input device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8518478A JPS5513446A (en) | 1978-07-14 | 1978-07-14 | Uneven pattern input device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5513446A true JPS5513446A (en) | 1980-01-30 |
Family
ID=13851566
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8518478A Pending JPS5513446A (en) | 1978-07-14 | 1978-07-14 | Uneven pattern input device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5513446A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59148808A (en) * | 1983-02-15 | 1984-08-25 | Nippon Telegr & Teleph Corp <Ntt> | Detecting mechanism of unevenness surface information |
JPS6128175A (en) * | 1984-07-18 | 1986-02-07 | Nec Corp | Image input device |
JPS6143379A (en) * | 1984-08-08 | 1986-03-01 | Nec Corp | Picture input device |
JPS62116204A (en) * | 1985-11-16 | 1987-05-27 | Nitto Electric Ind Co Ltd | Method and apparatus for measuring contact area |
JPS63228271A (en) * | 1987-03-17 | 1988-09-22 | Nippon Denso Co Ltd | Fingerprint image detector |
US5426296A (en) * | 1993-02-17 | 1995-06-20 | Mitsubishi Denki Kabushiki Kaisha | Irregular pattern input device comprising an optical fiber bundle |
US5623553A (en) * | 1993-06-21 | 1997-04-22 | Asahi Kogaku Kogyo Kabushiki Kaisha | High contrast fingerprint image detector |
WO2011043201A1 (en) | 2009-10-08 | 2011-04-14 | 浜松ホトニクス株式会社 | Relief pattern detection device |
US8405757B2 (en) | 2010-10-29 | 2013-03-26 | Optical Logic Inc. | Imaging device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5134680U (en) * | 1974-09-06 | 1976-03-15 | ||
JPS5223018U (en) * | 1975-08-06 | 1977-02-18 | ||
JPS52149922A (en) * | 1976-06-08 | 1977-12-13 | Nippon Telegr & Teleph Corp <Ntt> | Graphic information input device |
-
1978
- 1978-07-14 JP JP8518478A patent/JPS5513446A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5134680U (en) * | 1974-09-06 | 1976-03-15 | ||
JPS5223018U (en) * | 1975-08-06 | 1977-02-18 | ||
JPS52149922A (en) * | 1976-06-08 | 1977-12-13 | Nippon Telegr & Teleph Corp <Ntt> | Graphic information input device |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59148808A (en) * | 1983-02-15 | 1984-08-25 | Nippon Telegr & Teleph Corp <Ntt> | Detecting mechanism of unevenness surface information |
JPS6128175A (en) * | 1984-07-18 | 1986-02-07 | Nec Corp | Image input device |
JPS6143379A (en) * | 1984-08-08 | 1986-03-01 | Nec Corp | Picture input device |
JPS62116204A (en) * | 1985-11-16 | 1987-05-27 | Nitto Electric Ind Co Ltd | Method and apparatus for measuring contact area |
JPS63228271A (en) * | 1987-03-17 | 1988-09-22 | Nippon Denso Co Ltd | Fingerprint image detector |
US5426296A (en) * | 1993-02-17 | 1995-06-20 | Mitsubishi Denki Kabushiki Kaisha | Irregular pattern input device comprising an optical fiber bundle |
US5623553A (en) * | 1993-06-21 | 1997-04-22 | Asahi Kogaku Kogyo Kabushiki Kaisha | High contrast fingerprint image detector |
WO2011043201A1 (en) | 2009-10-08 | 2011-04-14 | 浜松ホトニクス株式会社 | Relief pattern detection device |
US8405757B2 (en) | 2010-10-29 | 2013-03-26 | Optical Logic Inc. | Imaging device |
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