[go: up one dir, main page]

WO2018113101A1 - Dispositif d'identification biométrique - Google Patents

Dispositif d'identification biométrique Download PDF

Info

Publication number
WO2018113101A1
WO2018113101A1 PCT/CN2017/076306 CN2017076306W WO2018113101A1 WO 2018113101 A1 WO2018113101 A1 WO 2018113101A1 CN 2017076306 W CN2017076306 W CN 2017076306W WO 2018113101 A1 WO2018113101 A1 WO 2018113101A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
biometric device
component
top surface
light incident
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.)
Ceased
Application number
PCT/CN2017/076306
Other languages
English (en)
Chinese (zh)
Inventor
王炯翰
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.)
TRON INTELLIGENCE Inc
Original Assignee
TRON INTELLIGENCE Inc
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 TRON INTELLIGENCE Inc filed Critical TRON INTELLIGENCE Inc
Publication of WO2018113101A1 publication Critical patent/WO2018113101A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/28—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection
    • H01L23/31—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the arrangement or shape

Definitions

  • the invention relates to a biometric device.
  • the types of biometrics include face, sound, iris, retina, veins, and fingerprint recognition. Since each person's fingerprint is unique and the fingerprint is not easy to change with age or physical health, the fingerprint identification device has become the most popular biometric device. According to the different sensing methods, the fingerprint identification device can be divided into optical and capacitive. When the capacitive fingerprint identification device is assembled in an electronic product (for example, a mobile phone or a tablet computer), a cover lens is disposed above the capacitive fingerprint recognition device, and the sensing effect of the capacitive fingerprint recognition device is transmitted through the light. The impact of the component. Therefore, optical fingerprint recognition devices have also received much attention.
  • an electronic product for example, a mobile phone or a tablet computer
  • the optical fingerprint identification device comprises a light source, a light guiding component and an image capturing component.
  • the light source is used to emit a light beam to illuminate a finger pressing the fingerprint recognition device.
  • Finger fingerprints are made up of a number of irregular ridges and indentations.
  • the beams reflected by the ridges and the indentations are formed as a fingerprint image of the light and dark interlaced on the receiving surface of the image capturing assembly.
  • the image capturing component can convert the fingerprint image into corresponding image information and input the image information into the processing unit.
  • the processing unit may use an algorithm to calculate image information corresponding to the fingerprint for identification of the user.
  • the efficiency of the light beam emitted from the light source coupled to the light guide assembly is poor, resulting in low light utilization efficiency of the fingerprint recognition device.
  • the invention provides a biometric device.
  • the biometric device comprises a light guiding component, a light source, a first optical glue, and an image capturing component.
  • the light guiding assembly includes a top surface, a bottom surface, a light incident surface, a first inner surface, and a second inner surface.
  • the bottom surface is disposed relative to the top surface.
  • the light entrance surface is connected between the top surface and the bottom surface.
  • the first inner surface is disposed relative to the top surface.
  • the second inner surface is disposed relative to the light incident surface and is coupled between the first inner surface and the bottom surface. In particular, the second inner surface is inclined with respect to the top surface and the light incident surface.
  • the light source is placed beside the entrance surface. There is a gap between the light source and the light incident surface.
  • a first optical glue fills the gap.
  • the light source is used to emit a light beam.
  • the light beam is transmitted to the light incident surface through the first optical glue, and the light beam enters the light guide assembly from the light incident surface and is reflected by the second inner surface toward the top surface.
  • the image capture assembly is disposed relative to the first inner surface of the light guide assembly.
  • the first inner surface and the second inner surface define a groove of the light guiding member, and the inner diameter of the groove gradually increases as it goes away from the top surface.
  • the light guiding assembly further includes a third inner surface.
  • the third inner surface is disposed relative to the light incident surface and is coupled between the second inner surface and the bottom surface.
  • the first inner surface, the second inner surface, and the third inner surface define a groove.
  • the second inner surface and the reference plane parallel to the top surface have a first angle
  • the third inner surface is inclined with respect to the top surface and the light incident surface and has a second angle with the reference plane, wherein the second angle is greater than the first angle.
  • the first inner surface and the second inner surface define a groove of the light guiding component, and the image capturing component is disposed in the groove of the light guiding component.
  • the refractive index of the first optical adhesive is the same as the refractive index of the light guiding member.
  • the biometric device further includes a light transmissive component.
  • the light transmissive component is disposed on a top surface of the light guide component.
  • the biometric device further includes a second optical glue.
  • the light guiding component is connected to the light transmitting component through the second optical glue.
  • the biometric device further includes a collimating component.
  • the collimating component is disposed between the first inner surface of the light guiding component and the image capturing component.
  • the biometric device is used to identify the object to be identified, and the object to be recognized includes a fingerprint, a palm print, a vein, or a combination thereof.
  • the light beam emitted from the light source includes visible light, invisible light, or a combination thereof.
  • the biometric device includes a light guiding component, a light source, an optical glue, and an image capturing component.
  • the light guiding component has a top surface, a bottom surface, a light incident surface, a first inner surface and a second inner surface.
  • the bottom surface is disposed relative to the top surface.
  • the light entrance surface is connected between the top surface and the bottom surface.
  • the first inner surface is disposed relative to the top surface.
  • the second inner surface is disposed relative to the light incident surface and is coupled between the first inner surface and the bottom surface.
  • the second inner surface is inclined with respect to the top surface and the light incident surface.
  • the second inner surface can reflect more of the light beam to the top surface of the light guide assembly, thereby illuminating the object to be identified. Thereby, the light utilization efficiency of the biometric device can be improved.
  • FIG. 1 is a schematic cross-sectional view of a biometric device according to an embodiment of the present invention.
  • the biometric device 100 includes a light guiding component 110 , a light source 120 , a first optical adhesive 130 , and an image capturing component 140 .
  • the light guide assembly 110 has a top surface 111, a bottom surface 112, a light incident surface 113, a first inner surface 114, and a second inner surface 115.
  • the bottom surface 112 is disposed relative to the top surface 111.
  • the light incident surface 113 is connected between the top surface 111 and the bottom surface 112.
  • the first inner surface 114 is disposed relative to the top surface 111.
  • the second inner surface 115 is disposed relative to the light incident surface 113 and is coupled between the first inner surface 114 and the bottom surface 112.
  • the second inner surface 115 is inclined with respect to the top surface 111 and the light incident surface 113.
  • the top surface 111 and the bottom surface 112 may be parallel, and the light incident surface 113 and the top surface 111 may be perpendicular, but the invention is not limited thereto.
  • the first inner surface 114 and the second inner surface 115 define a recess 110a of the light guide assembly 110, and the inner diameter d of the recess 110a gradually increases away from the top surface 111.
  • the light guiding assembly 110 also has a third inner surface 116.
  • the third inner surface 116 is disposed relative to the light incident surface 113 and is coupled between the second inner surface 115 and the bottom surface 112.
  • the first inner surface 114, the second inner surface 115, and the third inner surface 116 collectively define a recess 110a.
  • the third inner surface 116 is inclined with respect to the top surface 111 and the light incident surface 113.
  • the third inner surface 116 is sandwiched by a reference plane parallel to the top surface 111 with a second angle ⁇ 2
  • the second inner surface 115 is sandwiched by a reference plane parallel to the top surface 111 with a first angle ⁇ 1, and a second
  • the angle ⁇ 2 may be greater than the first angle ⁇ 1, but the invention is not limited thereto.
  • the material of the light guiding component 110 may be glass, polycarbonate (PC), polymethyl methacrylate (PMMA) or other suitable materials.
  • the light source 120 is disposed beside the light incident surface 113 of the light guide assembly 110.
  • the light source 120 is used to emit the light beam L.
  • the light beam L is, for example, invisible light (for example, infrared light).
  • the light beam L may also be visible light (for example, red light, blue light, green light, or a combination thereof) or a combination of visible light and invisible light.
  • the light source 120 is, for example, a light emitting diode.
  • the present invention is not limited thereto.
  • the light source 120 may also be other suitable types of light-emitting components. FIG.
  • the present invention is not limited thereto.
  • the number of the light sources 120 may be single and disposed on one side of the light guiding component 110, or the number of the light sources 120 may be three or more and disposed in the light guiding group. Three or more sides of the piece 110.
  • the first optical glue 130 is filled in the gap G.
  • the light beam L emitted by the light source 120 is transmitted to the light incident surface 113 through the first optical adhesive 130.
  • the light beam L enters the light guide assembly 110 from the light incident surface 113 and is reflected by the second inner surface 115 toward the top surface 111. Thereby, more light beams L can be transmitted in the light guiding component 110 and illuminate the object to be recognized 10, thereby improving the light utilization efficiency of the biometric device 100.
  • the refractive indices of the first optical adhesive 130 and the light guiding component 110 may be the same or similar to reduce the reflection of the light beam L at the boundary between the first optical adhesive 130 and the light guiding component 110 to enhance the biometric device 100. Light utilization efficiency and / or image quality.
  • the present invention is not limited thereto, and in other embodiments, the refractive indices of the first optical adhesive 130 and the light guiding component 110 may also be different.
  • the image capture assembly 140 is disposed relative to the first inner surface 114 of the light guide assembly 110.
  • the biometric device 100 further includes a circuit board 160.
  • the image capturing component 140 can be disposed on the circuit board 160 and electrically connected to the circuit board 160. Further, in the embodiment, the image capturing component 140 can be disposed in the recess 110a of the light guiding component 110, and is located in the space surrounded by the recess 110a of the light guiding component 110 and the circuit board 160.
  • the image capturing component 140 has a plurality of pixel regions 142 arranged in an array to receive the light beam L reflected by the object to be recognized 10, thereby obtaining an image of the object 10 to be identified.
  • the image capturing component 140 can be a charge-coupled device (CCD), a complementary metal oxide semiconductor (CMOS), or other suitable type of image sensor array.
  • CCD charge-coupled device
  • CMOS complementary metal oxide semiconductor
  • the biometric device 100 further includes a light transmissive component 170.
  • the light transmissive component 170 is disposed on the top surface 111 of the light guide assembly 110.
  • the light transmissive component 170 has a pressing surface 172 that faces the light guide assembly 110.
  • the pressing surface 172 is pressed by the object to be recognized 10.
  • the object to be identified 10 may be a biological feature of a living being, such as a fingerprint, a vein, a palm print, or a combination of at least two of the above.
  • the present invention is not limited thereto, and in the case of abnormal use, the object to be identified 10 may also be a forgery such as a fake finger.
  • the biometric device 100 further includes a second optical glue 180.
  • the light transmissive component 170 can be connected to the top surface 111 of the light guide component 110 through the second optical adhesive 180.
  • the refractive indices of the light-transmitting component 170, the second optical adhesive 180, and the light-guiding component 110 may be the same or similar to reduce the boundary between the light-transmitting component 170 and the second optical adhesive 180 and the second optical The reflection of the junction of the glue 180 and the light guiding component 110 to enhance the light utilization efficiency and/or image quality of the biometric device 100.
  • the present invention is not limited thereto.
  • the refractive indices of the light transmissive component 170, the second optical adhesive 180, and the light guiding component 110 may also be different.
  • the biometric device 100 can also include a collimation assembly 150.
  • the collimating assembly 150 is disposed between the first inner surface 114 of the light guiding assembly 110 and the image capturing assembly 140.
  • the collimating assembly 150 can be coupled to the image capturing assembly 140 through an optical adhesive (not shown), but the invention is not limited thereto.
  • the collimating assembly 150 has a plurality of light transmissive regions 152.
  • the plurality of light transmissive regions 152 respectively correspond to the plurality of pixel regions 142 of the image capturing component 140.
  • the light beam L reflected by each of the objects to be identified 10 can be transmitted to the corresponding pixel region 142 through the corresponding one of the light transmitting regions 152, and is not easily transferred to the other pixel regions 142. Thereby, the image capturing quality of the biometric device 100 can be further improved.
  • the biometric device 100 may optionally not include the collimation assembly 150.
  • the biometric device includes a light guiding component, a light source, an optical glue, and an image capturing component.
  • the light guiding component has a top surface, a bottom surface, a light incident surface, a first inner surface and a second inner surface.
  • the bottom surface is disposed relative to the top surface.
  • the light entrance surface is connected between the top surface and the bottom surface.
  • the first inner surface is disposed relative to the top surface.
  • Second inner surface relative to light entering The surface is disposed and connected between the first inner surface and the bottom surface.
  • the second inner surface is inclined with respect to the top surface and the light incident surface.
  • the second inner surface can reflect more of the light beam to the top surface of the light guide assembly, thereby illuminating the object to be identified. Thereby, the light utilization efficiency of the biometric device can be improved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Multimedia (AREA)
  • Optics & Photonics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Image Input (AREA)

Abstract

L'invention concerne un dispositif d'identification biométrique (100), comprenant un ensemble de guidage de lumière (110), une source de lumière (120), un premier adhésif optique (130) et un ensemble de capture d'image (140). L'ensemble de guidage de lumière (110) comprend une surface supérieure (111), une surface inférieure (112) opposée à la surface supérieure (111), une surface d'incidence de lumière (113) reliée entre la surface supérieure (111) et la surface inférieure (112), une première surface interne (114) opposée à la surface supérieure (111), et une seconde surface interne (115) opposée à la surface d'incidence de lumière (113) et reliée entre la première surface interne (114) et la surface inférieure (112). La seconde surface interne (115) est inclinée par rapport à la surface supérieure (111) et à la surface d'incidence de lumière (113). Le premier adhésif optique (130) est rempli dans un espace (G) entre la source de lumière (120) et la surface d'incidence de lumière (113). L'ensemble de capture d'image (140) est opposé à la première surface interne (114) de l'ensemble de guidage de lumière. Des faisceaux lumineux (L) émis par la source de lumière (120) sont transmis à la surface d'incidence de lumière (113) par l'intermédiaire du premier adhésif optique (130), et les faisceaux lumineux (L) entrent dans l'ensemble de guidage de lumière (110) à partir de la surface d'incidence de lumière (113) et sont réfléchis vers la surface supérieure (111) par la seconde surface interne (115). Ainsi, plus de faisceaux lumineux (L) peuvent être transmis à l'intérieur de l'ensemble de guidage de lumière (110) pour briller sur un objet à identifier (10), ce qui permet d'augmenter l'efficacité d'utilisation de lumière du dispositif d'identification biométrique (100).
PCT/CN2017/076306 2016-12-23 2017-03-10 Dispositif d'identification biométrique Ceased WO2018113101A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201611207519.2A CN108241828A (zh) 2016-12-23 2016-12-23 生物辨识装置
CN201611207519.2 2016-12-23

Publications (1)

Publication Number Publication Date
WO2018113101A1 true WO2018113101A1 (fr) 2018-06-28

Family

ID=62624356

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/076306 Ceased WO2018113101A1 (fr) 2016-12-23 2017-03-10 Dispositif d'identification biométrique

Country Status (3)

Country Link
CN (1) CN108241828A (fr)
TW (1) TWI639959B (fr)
WO (1) WO2018113101A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011110821A1 (fr) * 2010-03-12 2011-09-15 Milan Momcilo Popovich Capteur biométrique
CN204679665U (zh) * 2015-06-11 2015-09-30 三河市稳控计算机技术有限公司 光学雨量探测装置及导光器
CN105448859A (zh) * 2015-12-11 2016-03-30 华天科技（西安）有限公司 一种芯片上加有玻璃盖板的封装件及其制造方法
CN205302331U (zh) * 2016-01-14 2016-06-08 深圳市汇顶科技股份有限公司 生物检测装置
CN106022323A (zh) * 2016-07-26 2016-10-12 昆山龙腾光电有限公司 手指识别系统和手指识别方法及指纹识别装置

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2001255172A1 (en) * 2000-03-10 2001-09-24 Ethentica, Inc. Biometric sensor
JP4499341B2 (ja) * 2002-05-09 2010-07-07 ソニー株式会社 生体認証装置及び生体認証方法
US7804984B2 (en) * 2006-07-31 2010-09-28 Lumidigm, Inc. Spatial-spectral fingerprint spoof detection
TWI448973B (zh) * 2009-10-23 2014-08-11 Gingy Technology Inc A light guide module that improves image contrast
KR200462271Y1 (ko) * 2010-10-28 2012-09-03 징이 테크놀러지 아이엔씨. 광학 지문 인식 시스템
TWI438669B (zh) * 2011-04-14 2014-05-21 Wistron Corp 光學觸控模組及其方法
JP6075069B2 (ja) * 2013-01-15 2017-02-08 富士通株式会社 生体情報撮像装置及び生体認証装置ならびに生体情報撮像装置の製造方法
US10147757B2 (en) * 2015-02-02 2018-12-04 Synaptics Incorporated Image sensor structures for fingerprint sensing
TWM544047U (zh) * 2015-02-11 2017-06-21 Tron Intelligence Inc 指紋辨識影像光學構裝結構改良
TW201629521A (zh) * 2015-02-13 2016-08-16 聯詠科技股份有限公司 光學裝置
CN104850839A (zh) * 2015-05-19 2015-08-19 深圳市恒睿智达科技有限公司 光学采集模组的光控制组件及成型方法
CN206470778U (zh) * 2016-12-23 2017-09-05 敦捷光电股份有限公司 生物辨识装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011110821A1 (fr) * 2010-03-12 2011-09-15 Milan Momcilo Popovich Capteur biométrique
CN204679665U (zh) * 2015-06-11 2015-09-30 三河市稳控计算机技术有限公司 光学雨量探测装置及导光器
CN105448859A (zh) * 2015-12-11 2016-03-30 华天科技（西安）有限公司 一种芯片上加有玻璃盖板的封装件及其制造方法
CN205302331U (zh) * 2016-01-14 2016-06-08 深圳市汇顶科技股份有限公司 生物检测装置
CN106022323A (zh) * 2016-07-26 2016-10-12 昆山龙腾光电有限公司 手指识别系统和手指识别方法及指纹识别装置

Also Published As

Publication number Publication date
TWI639959B (zh) 2018-11-01
CN108241828A (zh) 2018-07-03
TW201824075A (zh) 2018-07-01

Similar Documents

Publication Publication Date Title
TWI646473B (zh) 生物辨識裝置
CN206489580U (zh) 生物特征辨识装置
TWI637326B (zh) 生物特徵辨識裝置
CN206532302U (zh) 生物辨识装置
CN206470777U (zh) 生物特征辨识装置
TWM553454U (zh) 生物辨識裝置
TW201824083A (zh) 生物特徵辨識裝置
CN206470780U (zh) 生物辨识装置
CN206470778U (zh) 生物辨识装置
TWI647622B (zh) 生物辨識裝置
TWI631935B (zh) 生物辨識裝置
CN108629244A (zh) 生物识别装置
WO2018113124A1 (fr) Dispositif d'identification biométrique
TWM553017U (zh) 生物特徵辨識裝置
TWI639959B (zh) 生物辨識裝置
TWM553003U (zh) 生物特徵辨識裝置
TWI654569B (zh) 生物辨識裝置
WO2018113121A1 (fr) Dispositif d'identification biométrique
CN206584370U (zh) 生物辨识装置
CN206470774U (zh) 生物辨识装置
WO2018113100A1 (fr) Dispositif d'identification biométrique
WO2018113120A1 (fr) Dispositif d'identification biométrique
TWM553004U (zh) 生物特徵辨識裝置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17884507

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17884507

Country of ref document: EP

Kind code of ref document: A1