WO2019213865A1 - Module de source de lumière, dispositif d'acquisition d'image, dispositif de reconnaissance d'identité et appareil électronique - Google Patents

Module de source de lumière, dispositif d'acquisition d'image, dispositif de reconnaissance d'identité et appareil électronique Download PDF

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Publication number
WO2019213865A1
WO2019213865A1 PCT/CN2018/086152 CN2018086152W WO2019213865A1 WO 2019213865 A1 WO2019213865 A1 WO 2019213865A1 CN 2018086152 W CN2018086152 W CN 2018086152W WO 2019213865 A1 WO2019213865 A1 WO 2019213865A1
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WO
WIPO (PCT)
Prior art keywords
light source
light
source module
electronic device
image acquisition
Prior art date
Application number
PCT/CN2018/086152
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English (en)
Chinese (zh)
Inventor
王小明
Original Assignee
深圳阜时科技有限公司
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.)
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Publication date
Application filed by 深圳阜时科技有限公司 filed Critical 深圳阜时科技有限公司
Priority to CN201880000782.5A priority Critical patent/CN108702218A/zh
Priority to PCT/CN2018/086152 priority patent/WO2019213865A1/fr
Publication of WO2019213865A1 publication Critical patent/WO2019213865A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H04B10/516—Details of coding or modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H04B10/501—Structural aspects
    • H04B10/502—LED transmitters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components

Definitions

  • the present application belongs to the field of optical technologies, and in particular, to a light source module, an image acquisition device, an identification device, and an electronic device.
  • Structural light refers to light having a specific morphology that can be designed as a stripe pattern, a regular lattice pattern, a mesh morphology, a speckle pattern, a coded morphology, etc., or even a more complex form of light.
  • the application range of structured light is more and more extensive, such as identification, projector, three-dimensional (3D) contour reproduction, depth measurement, anti-counterfeiting identification. Therefore, how to provide a light source module capable of emitting structured light has become the focus of research.
  • the current light source module generally uses a laser emitter array as a light source, which results in a large volume of the light source module, which can only be applied to a large-sized device. If the size of the device itself is small, the size of the light source module must also be small. For example, the distance between the exit points of two adjacent laser emitters in the light source module on the mobile phone is 10 micrometers, and an expensive vertical cavity surface emitting laser (VCSEL) is usually adopted, and the complicated And the special manufacturing process can achieve this requirement, and the pattern formed by the VCSEL is fixed, so it is not easy to widely spread the application.
  • VCSEL vertical cavity surface emitting laser
  • the technical problem to be solved by the present application is to provide a light source module, an image acquisition device, an identification device and an electronic device capable of changing a light source pattern, which are intended to be small in size, low in cost, and simple in manufacturing process.
  • a light source module that converts a light source pattern includes a light source and a beam former.
  • This light source is used to emit light.
  • the beamformer is configured to receive light emitted by the light source and modulate the received light to form patterned structured light.
  • the light source includes a miniature light emitting diode array.
  • the light source module further includes a driving chip capable of dynamically controlling the lighting of each of the miniature light emitting diodes as needed to form a desired patterned light emitting array.
  • the light source module further includes a package.
  • the package includes a receiving cavity and a light exiting portion.
  • the light source and the beam forming element are both housed in the accommodating cavity.
  • the structured light formed by the beam former can be emitted from the light exit portion.
  • the light exiting portion is transparent or translucent.
  • the light source module further includes a collimating lens.
  • the collimating lens is disposed between the light source and the beam forming element for aligning the light emitted by the light source into parallel light and then entering the beam forming element.
  • the collimating optical element is a microlens array or a Fresnel lens.
  • the beam former comprises a diffractive optical element or an imaging lens.
  • the present application also provides an image acquisition device including a sensing module and the above-described light source module.
  • the light source module is configured to emit patterned structured light and project the structured light onto a target.
  • the sensing module is configured to acquire an image of structured light reflected by the target.
  • the image obtaining device further includes a processor, configured to derive a 3D map of the target according to the image acquired by the sensing module.
  • the application also provides an identification device including an identification module and the image acquisition device described above.
  • the identification module is configured to perform identity recognition according to an image acquired by the image acquisition device.
  • the identification device comprises a face recognition device.
  • the present application also provides an electronic device including the above-mentioned identity recognition device, and the electronic device is configured to correspond to whether to perform a corresponding function according to the recognition result of the identity recognition device.
  • the corresponding function includes unlocking, paying, and starting any one or more of the pre-stored applications.
  • the electronic device includes a display screen, which is a miniature light emitting diode array, and a top end region of the display screen is multiplexed as a light source of the light source module.
  • the electronic device further includes an earpiece located on one side or opposite sides of the earpiece.
  • the application has the advantages that the light source module comprises a miniature light emitting diode array, which is small in size, low in cost and simple in manufacturing process.
  • FIG. 1 is a schematic structural diagram of a light source module according to an embodiment of the present application.
  • FIG. 2 and 3 are schematic structural views of a light source of the light source module of FIG. 1.
  • FIG. 4 and FIG. 5 are schematic diagrams showing the structure of an image acquiring apparatus according to a second embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a facial identity recognition apparatus according to a third embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of an electronic device according to a fourth embodiment of the present application.
  • a light source module 100 includes a hollow package 10 and a light source 20 and a beam former 30 housed in the package 10 .
  • the package body 10 includes a receiving cavity 11 and a light exiting portion 13.
  • the light source 20 and the beam former 30 are both accommodated in the accommodating cavity 11.
  • the light source 20 is for emitting light.
  • the light source 20 is an array including a micro light emitting diode (Micro-LED).
  • the light source 20 can be a plurality of independent Micro-LEDs.
  • the plurality of independent Micro-LEDs are arranged, for example, in a rectangular array.
  • the plurality of independent Micro-LEDs may also be arranged in other regular or irregular manners.
  • the light source module 100 further includes, for example, a driving chip 40 capable of dynamically controlling the lighting of each Micro-LED according to a user's needs, thereby forming a desired patterned light-emitting array. Therefore, when the DOE diffraction layer is superimposed on the Micro-LED array, any dynamically changing diffraction pattern can be achieved, and the control pattern change requires almost no cost.
  • a driving chip 40 capable of dynamically controlling the lighting of each Micro-LED according to a user's needs, thereby forming a desired patterned light-emitting array. Therefore, when the DOE diffraction layer is superimposed on the Micro-LED array, any dynamically changing diffraction pattern can be achieved, and the control pattern change requires almost no cost.
  • Each Micro-LED can be regarded as one pixel, which can be addressed and individually driven to light, reducing the pitch of adjacent pixels to the micron level. That is to say, the light source 20 is made by using a micro-light emitting diode (Micro-LED) technology.
  • the Micro-LED technology is a technology for miniaturization and matrixing of LEDs, which not only has the advantages of high efficiency, high brightness, high reliability and fast response time, but also has small size, light weight, and can effectively save energy and electricity.
  • the beam former 30 is configured to receive the light emitted by the light source 20 and modulate the received light to form patterned structured light.
  • the patterned structured light is projected onto an indexing surface 101 (see Figure 1) to form an image. This image is determined by the pattern of the light source 20 and the structure of the beam former 30.
  • the beam former 30 is, for example, substantially rectangular parallelepiped, and includes a transparent substrate and a phase band diffraction structure formed on the transparent substrate.
  • the diffracted light passing through the beam former 30 can be projected onto any suitable plane or space to form an image having a pattern.
  • the pattern of the structured light formed by the beam former 30 can be changed.
  • the beam former 30 includes, for example but without limitation, a diffractive optical element (DOE) or an imaging lens.
  • DOE diffractive optical element
  • the beam former 30 can be other suitable types of devices, and can form patterned structured light.
  • the patterned structured light is, for example, striped, dot matrix, mesh format, coded, or the like.
  • the light exiting portion 13 is configured to receive and allow structured light formed by the beam former 30 to exit the package 10.
  • the light exit portion 13 is, for example, transparent or translucent.
  • the light source module 100 operates in such a manner that the light emitted by the light source 20 reaches the beam former 30, is modulated into patterned structured light, and finally the structured light is emitted through the light exit portion 13.
  • a collimating optical element such as a microlens array or a Fresnel lens
  • a collimating optical element may be disposed on the optical path between the light source 20 and the beam former 30 for the light emitted by the light source 20. Calibration is performed to form parallel light to obtain a light source having a uniform intensity distribution.
  • the light source having a uniform intensity distribution is modulated by the beam former 30 to obtain structured light having a uniform intensity distribution, and the conversion efficiency and pattern accuracy of the structured light can be improved.
  • the light source module 100 works by: the light emitted by the light source 20 reaches a collimating optical element (not shown) and is calibrated into parallel light; the parallel light reaches the beam former 30 and is modulated into The structured light is patterned; finally, the structured light is emitted through the light exit portion 13.
  • the second embodiment of the present application provides an image acquisition device 200, which includes a sensing module 201 and a light source module 100 as described above.
  • the light source module 100 is configured to emit patterned structured light and project the structured light onto a target.
  • the sensing module 201 is configured to acquire an image of structured light reflected by the target.
  • the image acquisition device 200 further includes a processor (not shown) for deriving a 3D map of the target according to the image acquired by the sensing module 201.
  • the light source module 100 when the light source module 100 is a patterned light-emitting array composed of a plurality of independent micro-LEDs, the light source 20 (see FIG. 1) may be disposed on an electron applied by the image acquisition device 200.
  • the display screen 401 of the device 400 (such as a cell phone) (such as the area surrounded by thick lines in the figure) is external (such as around).
  • the light source 20 when the light source module 100 is fabricated by Micro-LED technology, the light source 20 (see FIG. 1) can be displayed with the display screen 401 of the electronic device 400 (such as a mobile phone) to which the image acquisition device 200 is applied. (The area surrounded by the thick line in the figure) is an integrally formed structure, and then the beam forming element 30 is superimposed on the outside of the light source 20.
  • the display screen 401 is a micro-LED array, and the top end area of the display screen 401 is multiplexed as the light source 20 of the light source module 100.
  • the electronic device 400 further includes an earpiece (not labeled) that is located on one or opposite sides of the earpiece.
  • the third embodiment of the present application provides an identity recognition device 300, which includes a sensing module 301, an identification module 302, and the above-described light source module 100.
  • the light source module 100 is configured to emit patterned structured light and project the structured light onto an object to be tested.
  • the sensing module 301 is configured to acquire an image of structured light reflected by the object to be tested.
  • the identification module 302 is configured to perform identity recognition according to an image obtained by the sensing module 301.
  • the identification device 300 is, for example, a face recognition device. However, the identification device 300 can also be used to identify other suitable locations of the human body, even to identify other organisms or non-living organisms.
  • the light source 20 may be disposed on an electronic device (such as a mobile phone) to which the identification device 300 is applied.
  • the outside of the display (such as around).
  • the light source 20 may be integrally formed with the display screen of the electronic device (such as a mobile phone) to which the identification device 300 is applied, and then The light beam forming element 30 may be superposed on the outer side of the light source 20.
  • the fourth embodiment of the present application provides an electronic device 400, such as but not limited to a suitable type of consumer electronic products, home electronic products, vehicle-mounted electronic products, financial terminal products, and the like.
  • Electronic products such as but not limited to mobile phones, tablets, notebook computers, desktop monitors, computer integrated machines.
  • Home-based electronic products such as, but not limited to, smart door locks, televisions, refrigerators, wearable devices, and the like.
  • Vehicle-mounted electronic products such as, but not limited to, car navigation systems, car DVDs, and the like.
  • the financial terminal products are, for example, but not limited to ATM machines, terminals for self-service business, and the like.
  • the electronic device 400 includes the above-described identity recognition device 300.
  • the electronic device 400 corresponds to whether to perform a corresponding function according to the identity recognition result of the identity recognition device 300.
  • the respective functions are, for example but not limited to, any one or more of an application including unlocking, paying, and starting a pre-stored application.
  • the electronic device 400 will be described as an example of a mobile phone.
  • the mobile phone is, for example, a full screen mobile phone, and the identification device 300 is disposed, for example, at the front top of the mobile phone.
  • the mobile phone is not limited to a full screen mobile phone.
  • the screen of lifting up the mobile phone or touching the mobile phone can function to wake up the identity recognition device 300.
  • the identity recognition device 300 is woken up and recognizes that the user in front of the mobile phone is a legitimate user, the screen is unlocked.
  • the light source module 100, the image acquisition device 200, the identification device 300, and the electronic device 400 of the present application use a patterned illumination array composed of a plurality of independent Micro-LEDs as a light source, and has a small volume. The cost is low and the production process is simple, and at the same time, energy saving and energy saving can be achieved.
  • the diffraction pattern of the light source module 100 can be dynamically adjusted according to user needs.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Studio Devices (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

La présente invention est applicable au domaine des techniques optiques. L'invention concerne un module de source de lumière. Le module de source de lumière comprend une source de lumière et un dispositif de mise en forme de faisceau. La source de lumière sert à émettre des rayons de lumière. La source de lumière comprend un réseau de micro-diodes électroluminescentes. Le dispositif de mise en forme de faisceau est utilisé pour recevoir les rayons de lumière émis par la source de lumière, et pour moduler les rayons de lumière reçus de façon à former une lumière de structure à motifs. L'invention concerne également un dispositif d'acquisition d'image utilisant le module de source de lumière, un dispositif de reconnaissance d'identité et un appareil électronique. La présente invention utilise une source de lumière comprenant un réseau de micro-diodes électroluminescentes, et présente ainsi une taille compacte et peut fournir des motifs de manière flexible.
PCT/CN2018/086152 2018-05-09 2018-05-09 Module de source de lumière, dispositif d'acquisition d'image, dispositif de reconnaissance d'identité et appareil électronique WO2019213865A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201880000782.5A CN108702218A (zh) 2018-05-09 2018-05-09 一种光源模组、图像获取装置、身份识别装置及电子设备
PCT/CN2018/086152 WO2019213865A1 (fr) 2018-05-09 2018-05-09 Module de source de lumière, dispositif d'acquisition d'image, dispositif de reconnaissance d'identité et appareil électronique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2018/086152 WO2019213865A1 (fr) 2018-05-09 2018-05-09 Module de source de lumière, dispositif d'acquisition d'image, dispositif de reconnaissance d'identité et appareil électronique

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Publication number Priority date Publication date Assignee Title
CN109277015A (zh) * 2018-08-30 2019-01-29 东莞市闻誉实业有限公司 原料搅拌照明装置
CN111742325A (zh) * 2018-11-08 2020-10-02 深圳市汇顶科技股份有限公司 垂直腔面发光激光器、结构光模块及光投射方法与终端
CN109643052B (zh) * 2018-11-24 2022-10-18 深圳阜时科技有限公司 一种光源结构、光学投影模组、感测装置及设备
CN110275381B (zh) * 2019-06-26 2021-09-21 业成科技（成都）有限公司 结构光发射模组及应用其的深度感测设备
CN110361870A (zh) * 2019-07-29 2019-10-22 深圳阜时科技有限公司 一种光学组件、发射单元、传感模组及电子设备
CN113251951B (zh) * 2021-04-26 2024-03-01 湖北汽车工业学院 基于单标定面映射的线结构光视觉测量***的标定方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105308626A (zh) * 2013-01-17 2016-02-03 西奥尼克斯股份有限公司 生物识别成像装置以及其方法
CN106990519A (zh) * 2017-05-12 2017-07-28 中国科学院苏州生物医学工程技术研究所 结构光照明显微成像***
CN107491302A (zh) * 2017-07-31 2017-12-19 广东欧珀移动通信有限公司 终端控制方法及装置
CN107798289A (zh) * 2016-09-07 2018-03-13 李美燕 可变光场的生物图像感测***

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105929559A (zh) * 2016-06-20 2016-09-07 深圳奥比中光科技有限公司 一种激光模组、激光模组制备方法及深度测量装置
CN107389631B (zh) * 2017-04-28 2020-07-07 中国科学院生物物理研究所 高速多色多模态结构光照明超分辨显微成像***及其方法
CN206877030U (zh) * 2017-07-07 2018-01-12 深圳奥比中光科技有限公司 发光装置及其激光投影模组
CN208297850U (zh) * 2018-05-09 2018-12-28 深圳阜时科技有限公司 一种光源模组、图像获取装置、身份识别装置及电子设备

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105308626A (zh) * 2013-01-17 2016-02-03 西奥尼克斯股份有限公司 生物识别成像装置以及其方法
CN107798289A (zh) * 2016-09-07 2018-03-13 李美燕 可变光场的生物图像感测***
CN106990519A (zh) * 2017-05-12 2017-07-28 中国科学院苏州生物医学工程技术研究所 结构光照明显微成像***
CN107491302A (zh) * 2017-07-31 2017-12-19 广东欧珀移动通信有限公司 终端控制方法及装置

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