WO2016177174A1 - 具有指纹识别功能的终端 - Google Patents

具有指纹识别功能的终端 Download PDF

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Publication number
WO2016177174A1
WO2016177174A1 PCT/CN2016/077383 CN2016077383W WO2016177174A1 WO 2016177174 A1 WO2016177174 A1 WO 2016177174A1 CN 2016077383 W CN2016077383 W CN 2016077383W WO 2016177174 A1 WO2016177174 A1 WO 2016177174A1
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WO
WIPO (PCT)
Prior art keywords
optical lens
fingerprint
lens group
camera
platform
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PCT/CN2016/077383
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English (en)
French (fr)
Inventor
高扬
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中兴通讯股份有限公司
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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to JP2018527090A priority Critical patent/JP2019502986A/ja
Priority to US15/778,632 priority patent/US10656340B2/en
Priority to EP16789168.8A priority patent/EP3367294A4/en
Publication of WO2016177174A1 publication Critical patent/WO2016177174A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G06V40/1312—Sensors therefor direct reading, e.g. contactless acquisition
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/0073—Light emitting diode [LED]
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/35—Optical coupling means having switching means
    • G02B6/3564—Mechanical details of the actuation mechanism associated with the moving element or mounting mechanism details
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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

Definitions

  • This application relates to, but is not limited to, the field of electronic device technology.
  • fingerprint recognition and processing can be performed.
  • the quality of fingerprint images directly affects the accuracy of recognition and the processing speed of fingerprint recognition systems. Therefore, fingerprint collection is the key technology for fingerprint recognition.
  • the main fingerprint acquisition technologies used today include optical fingerprint acquisition technology, semiconductor fingerprint acquisition technology and ultrasonic fingerprint acquisition technology.
  • Apple uses a silicon capacitive fingerprint image sensor, the most common semiconductor fingerprint sensor (semiconductor fingerprint acquisition technology), which captures fingerprints by electronic metrics.
  • semiconductor fingerprint sensor semiconductor fingerprint acquisition technology
  • Approximately 100,000 capacitive sensors can be combined on a semiconductor metal array with an insulating surface on the outside.
  • Each point of the sensor array is a metal electrode that acts as a pole of the capacitor.
  • the corresponding point of the finger on the sensing surface acts as the other pole.
  • the sensing surface forms a dielectric layer between the two poles. Since the distance between the groove and the valley of the fingerprint is different from the other pole (the presence of the depth of the grain), the capacitance value of the capacitance array of the silicon surface is different, and the capacitance value of each point is measured and recorded, and the gray value can be obtained.
  • Degree-level fingerprint image the most common semiconductor fingerprint sensor (semiconductor fingerprint acquisition technology), which captures fingerprints by electronic metrics.
  • Approximately 100,000 capacitive sensors can be combined on a semiconductor metal
  • the fingerprint scanning device and the fingerprint identification chip corresponding to the optical fingerprint collection technology, the fingerprint identification chip and the mobile phone circuit board are connected by a wire signal;
  • the optical fingerprint collection technology is the oldest and most widely used fingerprint collection technology, and the principle is the total reflection of light.
  • Fingerprints have grooves and valleys. When the light is irradiated to the valley through the glass, it is totally reflected at the interface between the glass and the air, and the light is reflected to the CCD (Charge Coupled Device), and the light that is directed to the groove is not totally reflected, but is grooved and The contact surface of the glass absorbs or diffuses to other places, thus forming an image of the fingerprint on the CCD.
  • CCD Charge Coupled Device
  • Ultrasonic fingerprint image acquisition technology has not been applied to fingerprint recognition systems because of its high cost.
  • Table 1 gives a comparison of the three main techniques.
  • This paper provides a terminal with fingerprint recognition function, which can better reduce the manufacturing cost of the fingerprint identification module.
  • a terminal having a fingerprint recognition function comprising: a body having a camera and a processing unit, the camera being electrically connected to the processing unit; an optical lens group for changing a focal length of the camera, located above the camera, and Mounted on the body; a light-guided fingerprint collection platform located above the optical lens group and used in conjunction with the optical lens assembly; and a light source located
  • the camera and the fingerprint mobile phone platform are located at a side of the camera, and the light emitting end of the light source faces the fingerprint collection platform.
  • the terminal having the fingerprint recognition function further includes: a light guide mounted between the fingerprint collection platform and the light source.
  • the terminal having the fingerprint recognition function further includes: a slide rail on the body, the optical lens group is movably mounted on the slide rail, and the fingerprint collection platform is fixedly mounted on the On the optical lens assembly, the light guiding member is worn on the optical lens group; wherein: the optical lens group carries the fingerprint collecting platform and the light guiding member to move along the sliding rail to a first setting In position, the optical lens group and the fingerprint collection platform are directly above the camera, the light guide is located directly above the light source; the optical lens group carries the fingerprint collection platform and the guide When the light piece moves along the sliding rail to the second set position, the optical lens group and the fingerprint collecting platform are located directly above the camera, and the light guiding member is located aside directly above the light source.
  • the terminal having the fingerprint recognition function further includes: a switch located at a side of the camera and electrically connected to the processing unit; wherein: the optical lens group carries the fingerprint collection platform and the guide The optical lens group is in contact with the switch to open the switch when the light member moves along the slide rail to the first set position; the optical lens group carries the fingerprint collection platform and the light guide When the piece moves along the slide rail to the second set position, the optical lens group is separated from the switch to close the switch.
  • the terminal having the fingerprint recognition function further includes: a limiting member installed at an end of the sliding rail to prevent the optical lens group from sliding out of the sliding rail.
  • the switch is a toggle switch
  • the light source is an LED flash
  • the limiting member is a limiting plate.
  • the optical lens group includes: a sliding bracket having a first through hole movably mounted on the sliding rail; and an optical lens mounted in the first through hole.
  • the fingerprint collection platform comprises: a platform bracket of a light guiding material mounted on the sliding bracket; and a platform glass of a light guiding material mounted on the platform bracket.
  • the platform bracket has a second through hole, the first through hole and the second through hole Corresponding.
  • the platform glass is an optical glass
  • the optical lens is a wide-angle lens
  • the first through hole has a cylindrical shape
  • the second through hole has a bell mouth shape.
  • the terminal with the fingerprint recognition function provided by the embodiment of the present invention adds an optical lens group in front of the camera, and the optical lens group brings the focal length of the camera closer to realize the super macro shooting of the camera, so that the finger is placed On the fingerprint collection platform at the front end of the optical lens group, the fingerprint image is captured by the light source to compensate the finger, thereby completing the processing unit to collect the fingerprint and subsequent fingerprint recognition; the structure is easy to implement and the cost is low.
  • FIG. 1 is a schematic structural diagram of a use state of a terminal having a fingerprint recognition function according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of another use state of a terminal having a fingerprint recognition function according to an embodiment of the present invention
  • FIGS. 1 and 2 are cross-sectional structural views of the terminal having the fingerprint recognition function shown in FIGS. 1 and 2;
  • FIGS. 1 and 2 are schematic exploded views of the optical lens group and the fingerprint collection platform of FIGS. 1 and 2;
  • FIG. 5 is an exploded perspective view of the switch, the slide rail and the light source of FIGS. 1 and 2.
  • 1 camera 2 light sources, 3 light guides, 4 slide rails, 5 switches, 6 limit parts, 71 sliding brackets, 72 optical lenses, 81 platform brackets, 82 platform glass.
  • a terminal having a fingerprint recognition function according to some embodiments of the present invention will be described below with reference to the accompanying drawings.
  • the terminal with the fingerprint identification function provided by the embodiment of the present invention is as shown in FIG. 1 to FIG. Included: a body having a camera 1 and a processing unit, the camera 1 is electrically connected to the processing unit; an optical lens group for changing the focal length of the camera 1 is located above the camera 1 and mounted on the body; a light-collecting fingerprint collecting platform is located The optical lens group is used above and used with the optical lens group; and the light source 2 is located between the camera 1 and the fingerprint mobile phone platform and is located beside the camera 1, and the light emitting end of the light source 2 faces the fingerprint collection platform.
  • the terminal with the fingerprint recognition function provided by the embodiment of the present invention adds an optical lens group in front of the camera 1 , and the optical lens group brings the focal length of the camera 1 closer to realize the super macro shooting of the camera 1 , so that the finger is placed on the optical lens.
  • the fingerprint image is captured by the light source 2 to expose the fingerprint image, thereby completing the processing unit to collect the fingerprint and subsequent fingerprint recognition; the structure is easy to implement and the cost is low.
  • the terminal may be a mobile phone, a tablet or a fingerprint machine.
  • the terminal with the fingerprint identification function provided by the embodiment of the present invention may further have the following additional technical features:
  • the terminal having the fingerprint recognition function further includes: a light guide 3 installed between the fingerprint collection platform and the light source 2 for conducting the light emitted by the light source 2 to the fingerprint collection platform.
  • the terminal having the fingerprint recognition function further includes: a slide rail 4 disposed on the body, the optical lens group being movably mounted on the slide rail 4, and the fingerprint collection platform fixedly mounted on the optical lens In the group, the light guide 3 is worn on the optical lens unit.
  • the first position and the second position correspond to both ends of the slide rail 4.
  • the terminal having the fingerprint recognition function further includes: a switch 5 located at a side of the camera 1 and electrically connected to the processing unit; wherein: the optical lens group carries the fingerprint collection platform and the light guide 3 When the slide rail 4 moves to the first set position, the optical lens group is in contact with the switch 5 To open the switch 5; when the optical lens group carries the fingerprint collection platform and the light guide 3 moves along the slide rail 4 to the second set position, the optical lens group is separated from the switch 5 to close the switch 5, and realizes fingerprint recognition and terminal imaging. Conversion of functions.
  • the camera 1 can perform autofocus under the control of the processing unit.
  • the terminal of the structure may be a mobile phone, a tablet, a computer, etc., and the fingerprint recognition is completed by the identification module in the processing unit.
  • the terminal having the fingerprint recognition function further includes: a limiting member 6 installed at an end of the sliding rail 4 for preventing the optical lens group from sliding out of the sliding rail 4.
  • the switch 5 is a toggle switch
  • the light source 2 is an LED flash
  • the limiting member 6 is a limiting plate.
  • the optical lens group includes: a sliding bracket 71 having a first through hole movably mounted on the slide rail 4; and an optical lens 72 mounted on the Inside a through hole.
  • the sliding bracket 71 and the sliding rail 4 can be matched by the T-shaped sliding rail 4 and the T-shaped groove structure, or the structure of the in-line tongue and the in-line through groove can be matched, and the purpose of the application can be achieved; the sliding bracket can be realized; 71 is coupled to the slide rail 4 by a pair of opposite ends thereof, and the slide rail 4 includes two portions that are symmetrical.
  • the fingerprint collection platform comprises: a platform bracket 81 of a light guiding material, mounted on the sliding bracket 71; and a platform glass 82 of a light guiding material, mounted on the platform bracket 81.
  • the platform bracket 81 has a second through hole corresponding to the second through hole.
  • the platform glass 82 is an optical glass
  • the optical lens 72 is a wide-angle lens
  • the first through hole is a cylindrical hole
  • the second through hole is a horn hole
  • the large end of the horn hole faces the lower surface of the fingerprint collection platform.
  • the terminal with the fingerprint recognition function provided by the embodiment of the present invention adds an optical lens group in front of the camera, and the optical lens group brings the focal length of the camera closer to realize the super macro shooting of the camera, so that the finger is placed.
  • the fingerprint image is captured by the light source to compensate the finger, thereby completing the processing unit to collect the fingerprint and subsequent fingerprint recognition; the structure is easy to implement and the cost is low.
  • connection may be a fixed connection, a detachable connection, or an integral connection. Connected; can be directly connected, or indirectly connected through an intermediary.
  • connecting may be a fixed connection, a detachable connection, or an integral connection. Connected; can be directly connected, or indirectly connected through an intermediary.
  • the optical lens group brings the focal length of the camera closer to realize the super macro shooting of the camera, so that the finger is placed on the fingerprint collecting platform at the front end of the optical lens group, and the finger is passed through the light source.
  • the exposure compensation is performed to take a fingerprint image, thereby completing the processing unit to collect the fingerprint and subsequent fingerprint recognition; the structure is easy to implement and the cost is low.

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  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Human Computer Interaction (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
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Abstract

一种具有指纹识别功能的终端，包括：具有摄像头（1）和处理单元的本体，摄像头（1）与处理单元电连接；用于改变摄像头（1）焦距的光学透镜组，位于摄像头（1）的上方、并安装在本体上；导光的指纹收集平台，位于光学透镜组的上方、并与光学透镜组配合使用；和光源（2），位于摄像头（1）与指纹收集平台之间、并处于摄像头（1）的一旁，且光源（2）的发光端朝向指纹收集平台。

Description

具有指纹识别功能的终端 技术领域
本申请涉及但不限于电子设备技术领域。
背景技术
在手机中,通过指纹采集器采集到指纹图像后，才能进行指纹识别、处理。指纹图像的质量会直接影响到识别的精度以及指纹识别系统的处理速度，因此指纹采集是指纹识别的关键技术。
当今所使用的主要指纹采集技术有光学指纹采集技术，半导体指纹采集技术和超声波指纹采集技术。
苹果采用了硅电容指纹图像传感器，这是最常见的半导体指纹传感器(半导体指纹采集技术)，它通过电子度量来捕捉指纹。在半导体金属阵列上能结合大约100000个电容传感器，其外面是绝缘的表面。传感器阵列的每一点是一个金属电极，充当电容器的一极，按在传感面上的手指头的对应点则作为另一极，传感面形成两极之间的介电层。由于指纹的沟和谷相对于另一极之间的距离不同(纹路深浅的存在)，导致硅表面电容阵列的每个电容值不同，测量并记录每个点的电容值，就可以获得具有灰度级的指纹图像。
光学指纹采集技术对应的指纹扫描装置和指纹识别芯片，指纹识别芯片与手机电路板通过导线信号连接；光学指纹采集技术是最古老也是目前应用最广泛的指纹采集技术，其原理是光的全反射。指纹有沟和谷。光线经玻璃照射到谷的地方后在玻璃与空气的界面发生全反射，光线被反射到CCD(Charge Coupled Device，电荷耦合器件)，而射向沟的光线不发生全反射，而是被沟与玻璃的接触面吸收或者漫反射到别的地方，这样就在CCD上形成了指纹的图像。
超声波指纹图像采集技术由于其成本过高，还没有应用到指纹识别系统中。
表1给出三种主要技术的比较。
Figure PCTCN2016077383-appb-000001
如表1可知，上述三种方法的成本均较高，应用于手机上无疑会提升手机的销售价格，不利于手机销售。
发明内容
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。
本文提供了一种具有指纹识别功能的终端，能够更好地降低指纹识别模块的制作成本。
一种具有指纹识别功能的终端，包括：具有摄像头和处理单元的本体，所述摄像头与所述处理单元电连接；用于改变所述摄像头焦距的光学透镜组，位于所述摄像头的上方、并安装在所述本体上；导光的指纹收集平台，位于所述光学透镜组的上方、并与所述光学透镜组配合使用；和光源，位于 所述摄像头与所述指纹手机平台之间、并处于所述摄像头的一旁，且所述光源的发光端朝向所述指纹收集平台。
可选地，所述具有指纹识别功能的终端还包括：导光件，安装于所述指纹收集平台和所述光源之间。
可选地，所述具有指纹识别功能的终端还包括：滑轨，位于所述本体上，所述光学透镜组可移动地安装在所述滑轨上，所述指纹收集平台固定安装在所述光学透镜组上，所述导光件穿装在所述光学透镜组上；其中：所述光学透镜组携带所述指纹收集平台和所述导光件沿所述滑轨移动至第一设定位置时，所述光学透镜组和所述指纹收集平台处于所述摄像头的正上方、所述导光件位于所述光源的正上方；所述光学透镜组携带所述指纹收集平台和所述导光件沿所述滑轨移动至第二设定位置时，所述光学透镜组和所述指纹收集平台处于所述摄像头正上方的一旁、所述导光件位于所述光源正上方的一旁。
可选地，所述具有指纹识别功能的终端还包括：开关，位于所述摄像头的一旁、并与所述处理单元电连接；其中：所述光学透镜组携带所述指纹收集平台和所述导光件沿所述滑轨移动至所述第一设定位置时，所述光学透镜组与所述开关接触以打开所述开关；所述光学透镜组携带所述指纹收集平台和所述导光件沿所述滑轨移动至所述第二设定位置时，所述光学透镜组与所述开关分离以关闭所述开关。
可选地，所述具有指纹识别功能的终端还包括：限位件，安装在所述滑轨的端部处，以阻止所述光学透镜组滑出所述滑轨。
可选地，所述开关为拨动开关，所述光源为LED闪光灯，所述限位件为限位板。
可选地，所述光学透镜组包括：具有第一通孔的滑动支架，可移动地安装在所述滑轨上；和光学透镜，安装在所述第一通孔内。
可选地，所述指纹收集平台包括：导光材质的平台支架，安装在所述滑动支架上；和导光材质的平台玻璃，安装在所述平台支架上。
可选地，所述平台支架上具有第二通孔，所述第一通孔与所述第二通孔 相对应。
可选地，所述平台玻璃为光学玻璃，所述光学透镜为广角镜头，所述第一通孔呈圆柱状，所述第二通孔呈喇叭口状。
与相关技术相比，本发明实施例提供的具有指纹识别功能的终端，通过在摄像头前增加光学透镜组，光学透镜组将摄像头的焦距拉近实现摄像头进行超微距拍摄，这样，将手指放在光学透镜组前端的指纹收集平台上，通过光源对手指进行曝光补偿来拍摄出指纹图像，以此完成处理单元采集指纹和后续的指纹识别；此结构实现容易,成本很低。
在阅读并理解了附图和详细描述后，可以明白其他方面。
附图概述
图1是本发明一个实施例所述的具有指纹识别功能的终端一使用状态的结构示意图；
图2是本发明一个实施例所述的具有指纹识别功能的终端另一使用状态的结构示意图；
图3是图1和图2所示的具有指纹识别功能的终端的剖视结构示意图；
图4是图1和图2中的光学透镜组和指纹收集平台的分解结构示意图；
图5是图1和图2中的开关、滑轨和光源的分解结构示意图。
其中，图1至图5中附图标记与部件名称之间的对应关系为：
1摄像头，2光源，3导光件，4滑轨，5开关，6限位件，71滑动支架，72光学透镜，81平台支架，82平台玻璃。
本发明的实施方式
下文中将结合附图对本发明的实施例进行详细说明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互任意组合。
下面结合附图描述本发明一些实施例所述的具有指纹识别功能的终端。
本发明实施例提供的具有指纹识别功能的终端，如图1至图3所示，包 括：具有摄像头1和处理单元的本体，摄像头1与处理单元电连接；用于改变摄像头1焦距的光学透镜组，位于摄像头1的上方、并安装在本体上；导光的指纹收集平台，位于光学透镜组的上方、并与光学透镜组配合使用；和光源2，位于摄像头1与指纹手机平台之间、并处于摄像头1的一旁，且光源2的发光端朝向指纹收集平台。
本发明实施例提供的具有指纹识别功能的终端，通过在摄像头1前增加光学透镜组，光学透镜组将摄像头1的焦距拉近实现摄像头1进行超微距拍摄，这样，将手指放在光学透镜组前端的指纹收集平台上，通过光源2对手指进行曝光补偿来拍摄出指纹图像，以此完成处理单元采集指纹和后续的指纹识别；此结构实现容易,成本很低。
其中，终端可以是手机、平板或者指纹机等。
另外，本发明实施例提供的具有指纹识别功能的终端还可具有如下附加的技术特征：
其中，如图3所示，具有指纹识别功能的终端还包括：导光件3，安装于指纹收集平台和光源2之间，用于将光源2发出的光传导至指纹收集平台。
如图1至图3、图5所示，具有指纹识别功能的终端还包括：滑轨4，位于本体上，光学透镜组可移动地安装在滑轨4上，指纹收集平台固定安装在光学透镜组上，导光件3穿装在光学透镜组上。
其中，如图2所示，光学透镜组携带指纹收集平台和导光件3沿滑轨4移动至第一设定位置时，光学透镜组和指纹收集平台处于摄像头1的正上方、导光件3位于光源2的正上方；光学透镜组携带指纹收集平台和导光件3沿滑轨4移动至第二设定位置时，光学透镜组和指纹收集平台处于摄像头1正上方的一旁、导光件3位于光源2正上方的一旁。
第一位置和第二位置对应位于滑轨4的两端处。
如图1至图3、图5所示，具有指纹识别功能的终端还包括：开关5，位于摄像头1的一旁、并与处理单元电连接；其中：光学透镜组携带指纹收集平台和导光件3沿滑轨4移动至第一设定位置时，光学透镜组与开关5接触 以打开开关5；光学透镜组携带指纹收集平台和导光件3沿滑轨4移动至第二设定位置时，光学透镜组与开关5分离以关闭开关5，实现指纹识别和终端摄像两个功能的转换。
可选地，摄像头1可在处理单元的控制下进行自动对焦。
此种结构的终端可以是手机、平板、电脑等，其指纹识别通过处理单元内的识别模块计算完成。
如图2和图5所示，具有指纹识别功能的终端还包括：限位件6，安装在滑轨4的端部处，用于阻止光学透镜组滑出滑轨4。
可选地，开关5为拨动开关，光源2为LED闪光灯，限位件6为限位板。
本发明的一个实施例中，如图3和图4所示，光学透镜组包括：具有第一通孔的滑动支架71，可移动地安装在滑轨4上；和光学透镜72，安装在第一通孔内。
滑动支架71和滑轨4之间可通过T形滑轨4和T形槽结构配合，也可以是通过一字形插舌和一字形通槽的结构配合，均可实现本申请的目的；滑动支架71通过其一组相对的两端与滑轨4相配合，滑轨4包括对称的两部分。
再者，指纹收集平台包括：导光材质的平台支架81，安装在滑动支架71上；和导光材质的平台玻璃82，安装在平台支架81上。
平台支架81上具有第二通孔，第一通孔与第二通孔相对应。
其中，平台玻璃82为光学玻璃，光学透镜72为广角镜头，第一通孔为圆柱形孔，第二通孔为喇叭型孔、且喇叭形孔的大口端朝向指纹收集平台的下表面。
综上所述，本发明实施例提供的具有指纹识别功能的终端，通过在摄像头前增加光学透镜组，光学透镜组将摄像头的焦距拉近实现摄像头进行超微距拍摄，这样，将手指放在光学透镜组前端的指纹收集平台上，通过光源对手指进行曝光补偿来拍摄出指纹图像，以此完成处理单元采集指纹和后续的指纹识别；此结构实现容易,成本很低。
在本文的描述中，术语“安装”、“相连”、“连接”、“固定”等均应做广义理解，例如，“连接”可以是固定连接，也可以是可拆卸连接，或一体地连 接；可以是直接相连，也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可以根据实际情况理解上述术语在本文中的含义。
在本说明书的描述中，术语“一个实施例”、“一些实施例”等的描述意指结合该实施例或示例描述的特征、结构、材料或特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或实例。而且，描述的特征、结构、材料或特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
虽然本发明所揭露的实施方式如上，但所述的内容仅为便于理解本发明而采用的实施方式，并非用以限定本发明。任何本发明所属领域内的技术人员，在不脱离本发明所揭露的精神和范围的前提下，可以在实施的形式及细节上进行任何的修改与变化，但本发明的专利保护范围，仍须以所附的权利要求书所界定的范围为准。
工业实用性
本发明实施例提供的具有指纹识别功能的终端，光学透镜组将摄像头的焦距拉近实现摄像头进行超微距拍摄，这样，将手指放在光学透镜组前端的指纹收集平台上，通过光源对手指进行曝光补偿来拍摄出指纹图像，以此完成处理单元采集指纹和后续的指纹识别；此结构实现容易，成本很低。

Claims (10)

  1. 一种具有指纹识别功能的终端，包括：
    具有摄像头(1)和处理单元的本体，所述摄像头(1)与所述处理单元电连接；
    用于改变所述摄像头(1)焦距的光学透镜组，位于所述摄像头(1)的上方、并安装在所述本体上；
    导光的指纹收集平台，位于所述光学透镜组的上方、并与所述光学透镜组配合使用；和
    光源(2)，位于所述摄像头(1)与所述指纹手机平台之间、并处于所述摄像头(1)的一旁，且所述光源(2)的发光端朝向所述指纹收集平台。
  2. 根据权利要求1所述的具有指纹识别功能的终端，还包括：
    导光件(3)，安装于所述指纹收集平台和所述光源(2)之间。
  3. 根据权利要求2所述的具有指纹识别功能的终端，还包括：
    滑轨(4)，位于所述本体上，所述光学透镜组可移动地安装在所述滑轨(4)上，所述指纹收集平台固定安装在所述光学透镜组上，所述导光件(3)穿装在所述光学透镜组上；其中：
    所述光学透镜组携带所述指纹收集平台和所述导光件(3)沿所述滑轨(4)移动至第一设定位置时，所述光学透镜组和所述指纹收集平台处于所述摄像头(1)的正上方、所述导光件(3)位于所述光源(2)的正上方；
    所述光学透镜组携带所述指纹收集平台和所述导光件(3)沿所述滑轨(4)移动至第二设定位置时，所述光学透镜组和所述指纹收集平台处于所述摄像头(1)正上方的一旁、所述导光件(3)位于所述光源(2)正上方的一旁。
  4. 根据权利要求3所述的具有指纹识别功能的终端，还包括：
    开关(5)，位于所述摄像头(1)的一旁、并与所述处理单元电连接；其中：
    所述光学透镜组携带所述指纹收集平台和所述导光件(3)沿所述滑轨(4)移动至所述第一设定位置时，所述光学透镜组与所述开关(5)接触以打开所 述开关(5)；
    所述光学透镜组携带所述指纹收集平台和所述导光件(3)沿所述滑轨(4)移动至所述第二设定位置时，所述光学透镜组与所述开关(5)分离以关闭所述开关(5)。
  5. 根据权利要求4所述的具有指纹识别功能的终端，还包括：
    限位件(6)，安装在所述滑轨(4)的端部处，以阻止所述光学透镜组滑出所述滑轨(4)。
  6. 根据权利要求5所述的具有指纹识别功能的终端，其中，所述开关(5)为拨动开关，所述光源(2)为LED闪光灯，所述限位件(6)为限位板。
  7. 根据权利要求3至6中任一项所述的具有指纹识别功能的终端，其中，所述光学透镜组包括：
    具有第一通孔的滑动支架(71)，可移动地安装在所述滑轨(4)上；和
    光学透镜(72)，安装在所述第一通孔内。
  8. 根据权利要求7所述的具有指纹识别功能的终端，其中，所述指纹收集平台包括：
    导光材质的平台支架(81)，安装在所述滑动支架(71)上；和
    导光材质的平台玻璃(82)，安装在所述平台支架(81)上。
  9. 根据权利要求8所述的具有指纹识别功能的终端，其中，所述平台支架(81)上具有第二通孔，所述第一通孔与所述第二通孔相对应。
  10. 根据权利要求9所述的具有指纹识别功能的终端，其中，所述平台玻璃(82)为光学玻璃，所述光学透镜(72)为广角镜头，所述第一通孔呈圆柱状，所述第二通孔呈喇叭口状。
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