Title:
OPTICAL FINGERPRINT SENSOR
Document Type and Number:
WIPO Patent Application WO/2019/228931
Kind Code:
A3
Abstract:
The invention relates to the field of security technology, in particular an optical fingerprint sensor, which can be used to control access to sensitive areas, but also for unlocking electronic devices, in particular mobile devices. The optical fingerprint sensor has a modularly constructed sensor body. The sensor body is also suitable for all sensors which are provided for detecting the surface structures of flexible or elastic objects.
Inventors:
BEHRENS MICHAEL (DE)
Application Number:
PCT/EP2019/063509
Publication Date:
January 30, 2020
Filing Date:
May 24, 2019
Export Citation:
Assignee:
TECHNISCHE HOCHSCHULE MITTELHESSEN (DE)
International Classes:
G06K9/00; G02B5/04
Foreign References:
| CN106291894A | 2017-01-04 | |||
| EP0045914A1 | 1982-02-17 |
Other References:
WILLIAM BURKE: "Image Acquisition", 1 January 1996, CHAPMAN & HALL, pages: 406 - 408, XP055530485
WARREN SMITH: "Modern Optical Engineering: The Design of Optical Systems, 4e Aufl.", vol. 20, 1 January 2008, SPIE, pages: 144 - 146, XP055530507
YAMAGUCHI S ET AL: "COLLIMATION OF EMISSIONS FROM A HIGH-POWER MULTISTRIPE LASER-DIODE BAR WITH MULTIPRISM ARRAY COUPLING AND FOCUSING TO A SMALL SPOT", OPTICS LETTERS, OPTICAL SOCIETY OF AMERICA, US, vol. 20, no. 8, 15 April 1995 (1995-04-15), pages 898 - 900, XP000499612, ISSN: 0146-9592
YULONG WU ET AL: "Beam shaping for kilowatt fiber-coupled diode lasers by using one-step beam cutting-rotating of prisms", APPLIED OPTICS, vol. 55, no. 34, 28 November 2016 (2016-11-28), WASHINGTON, DC; US, pages 9769, XP055575175, ISSN: 0003-6935, DOI: 10.1364/AO.55.009769
JOSHUA ENGELSMA ET AL: "RaspiReader: An Open Source Fingerprint Reader Facilitating Spoof Detection", 25 August 2017 (2017-08-25), pages 1 - 14, XP055575214, Retrieved from the Internet [retrieved on 20190328]
WARREN SMITH: "Modern Optical Engineering: The Design of Optical Systems, 4e Aufl.", vol. 20, 1 January 2008, SPIE, pages: 144 - 146, XP055530507
YAMAGUCHI S ET AL: "COLLIMATION OF EMISSIONS FROM A HIGH-POWER MULTISTRIPE LASER-DIODE BAR WITH MULTIPRISM ARRAY COUPLING AND FOCUSING TO A SMALL SPOT", OPTICS LETTERS, OPTICAL SOCIETY OF AMERICA, US, vol. 20, no. 8, 15 April 1995 (1995-04-15), pages 898 - 900, XP000499612, ISSN: 0146-9592
YULONG WU ET AL: "Beam shaping for kilowatt fiber-coupled diode lasers by using one-step beam cutting-rotating of prisms", APPLIED OPTICS, vol. 55, no. 34, 28 November 2016 (2016-11-28), WASHINGTON, DC; US, pages 9769, XP055575175, ISSN: 0003-6935, DOI: 10.1364/AO.55.009769
JOSHUA ENGELSMA ET AL: "RaspiReader: An Open Source Fingerprint Reader Facilitating Spoof Detection", 25 August 2017 (2017-08-25), pages 1 - 14, XP055575214, Retrieved from the Internet
Attorney, Agent or Firm:
STUMPF, Peter (DE)
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