WO2020082331A1 - 电子装置及测距组件 - Google Patents

电子装置及测距组件 Download PDF

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Publication number
WO2020082331A1
WO2020082331A1 PCT/CN2018/112098 CN2018112098W WO2020082331A1 WO 2020082331 A1 WO2020082331 A1 WO 2020082331A1 CN 2018112098 W CN2018112098 W CN 2018112098W WO 2020082331 A1 WO2020082331 A1 WO 2020082331A1
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Prior art keywords
optical signal
electronic device
distance sensor
distance
prism
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PCT/CN2018/112098
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English (en)
French (fr)
Inventor
郑琼羽
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Shenzhen Royole Technologies Co Ltd
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Shenzhen Royole Technologies Co Ltd
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Priority to CN201880096030.3A priority Critical patent/CN112703718A/zh
Priority to PCT/CN2018/112098 priority patent/WO2020082331A1/zh
Publication of WO2020082331A1 publication Critical patent/WO2020082331A1/zh
Anticipated expiration legal-status Critical
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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • 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

Definitions

  • the present application relates to the field of sensor technology, and in particular, to an electronic device and a distance measuring assembly.
  • Existing electronic devices use a distance sensor to sense the distance between a human face and the screen during a call so that the screen is turned off to save energy and prevent misoperation caused by the human face touching the screen.
  • the current technology is mainly to set the distance sensor on the side of the screen, and to open a through hole on the screen, so that the transmitter and receiver of the distance sensor are facing the through hole, and then through the through hole to emit and receive infrared light to achieve measurement Purpose.
  • the through hole on the screen is large, which affects the screen ratio of the electronic device, which is not conducive to the development of the electronic device toward a full screen.
  • the embodiments of the present application disclose an electronic device and a distance measuring assembly, which can reduce the area of the through hole on the display screen, and thus can increase the screen ratio of the electronic device.
  • An embodiment of the present application discloses an electronic device.
  • a through hole is formed on the surface of the electronic device.
  • the electronic device includes a distance measuring component.
  • the distance measuring component is disposed in the electronic device.
  • the distance measuring component include:
  • An optical module is provided in the propagation path of the optical signal, and is used to converge and change the propagation direction of the optical signal and convert the propagation path of the optical signal into a specific direction and emit it from the through hole;
  • the optical module is also used to receive the optical signal reflected by the target object located outside the through hole after being emitted from the through hole and propagate the reflected optical signal to the distance sensor;
  • the distance sensor is also used to receive the optical signal reflected by the target object, and calculate the distance between the electronic device and the target object according to the received optical signal.
  • the distance measuring assembly includes:
  • An optical module is provided in the propagation path of the optical signal and is used to converge and change the propagation direction of the optical signal and convert the propagation path of the optical signal into a specific direction and then emit it;
  • the optical module is also used to receive the optical signal reflected by the target object after being emitted and propagate the reflected optical signal to the distance sensor;
  • the distance sensor is also used to receive the optical signal reflected by the target object, and calculate the distance between the electronic device and the target object according to the received optical signal.
  • the electronic device and the distance measuring assembly disclosed in the present application because the distance measuring assembly includes not only a distance sensor but also an optical module on the side of the distance sensor, the optical module can be used to gather and change the optical signal The propagation direction of the optical signal and convert the propagation path of the optical signal into a specific direction and emit it.
  • the width of the propagation path of the optical signal can be reduced, which can be reduced
  • the small size of the through hole increases the screen-to-body ratio of the electronic device, which is conducive to the trend of the electronic device toward a full-screen.
  • FIG. 1 is a front view of an electronic device in an embodiment of this application.
  • FIG. 2 is a schematic diagram of a positional relationship between a distance measuring component, a display screen, and a human face in an embodiment of the present application.
  • FIG. 3 is a front view of the distance sensor of the distance measuring assembly in FIG. 2.
  • FIG. 4 is a schematic diagram of the optical path principle of the ranging component in an embodiment of the present application.
  • FIG. 5 is a schematic diagram of the optical path principle of the ranging component in another embodiment of the present application.
  • FIG. 6 is a schematic diagram of an optical path principle of a distance measuring component in still another embodiment of the present application.
  • first and second are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the indicated technical features quantity.
  • the features defined as “first” and “second” may explicitly or implicitly include one or more of the features.
  • the meaning of “plurality” is two or more, unless otherwise specifically limited.
  • connection should be understood in a broad sense, for example, it may be a fixed connection or It is a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, which can be the interconnection of two components or two components Interaction.
  • intermediate medium which can be the interconnection of two components or two components Interaction.
  • FIG. 1 is a front view of an electronic device 900 in an embodiment of the present application
  • FIG. 2 is a schematic diagram of a positional relationship between a distance measuring assembly 100 and a display screen 200 in an embodiment of the present application.
  • a through hole 210 is defined on the surface of the electronic device 900.
  • the electronic device 900 includes a distance measuring assembly 100 and a display screen 200.
  • the through hole 210 is opened on the display screen 200.
  • the distance measuring assembly 100 is disposed in the electronic device 900.
  • the distance measuring assembly 100 includes a distance sensor 10 and an optical module 20.
  • the distance sensor 10 is used to generate an optical signal.
  • the optical module 20 is disposed on one side of the distance sensor 10 and located in the light exit path of the distance sensor 10, for converging and changing the propagation direction of the optical signal and converting the propagation path of the optical signal into a specific After the direction, it is emitted from the through hole 210.
  • converging refers to reducing the width of the optical path, for example, the maximum diameter in the optical path after convergence will become smaller.
  • the optical module 20 is further used to receive the optical signal reflected by the target object 800 located outside the through-hole 210 after the optical signal is emitted from the through-hole 210 and the reflected light The signal propagates to the distance sensor 10.
  • the distance sensor 10 is also used to receive the optical signal of the outgoing light reflected by the target object 800 and enter the electronic device 900 through the through hole 210, and calculate the distance between the electronic device 900 and the target object 800 according to the time of the received optical signal The distance between.
  • the time of the received optical signal refers to the time difference from the transmission to the reception of the optical signal.
  • the distance sensor 10 may also calculate the distance between the electronic device 900 and the target object 800 according to the intensity of the received optical signal.
  • the optical module 20 is used to convert the optical signal generated by the distance sensor 10 into parallel light, and emit the parallel light from the through hole 210 along the specific direction. That is, the optical module 20 not only converts the direction of the optical signal generated by the distance sensor 10, but also converts the form of the optical signal generated by the distance sensor 10, for example, converts the beam light generated by the distance sensor 10 into parallel Light, and then emit it in a specific direction.
  • the specific direction is the direction facing the through hole 210 of the display screen 200, so that the optical module 20 converts the direction of the optical signal generated by the distance sensor 10 into the direction facing the through hole 210, and then Shoot through the through hole 210.
  • the distance sensor 10 is used to generate a beam-shaped optical signal, that is, the light is emitted from a point, and the edge of the light is at a certain angle. Therefore, as the propagation path becomes longer, the light beam becomes more and more Divergence.
  • the target object 800 may be a human face or other parts of the human body.
  • the distance sensor 10 detects that the target object 800 exists within the preset distance range of the electronic device 900, the distance between the electronic device 900 and the target object 800 may be calculated. It can be understood that the preset distance may be 8 cm or 15 cm, which is not limited herein.
  • the optical module 20 can converge and change the light
  • the propagation direction of the signal and the propagation path of the optical signal are converted into a specific direction and then emitted from the through hole 210.
  • the propagation path of the optical signal can be reduced
  • the width of the through hole 210 may reduce the size of the through hole 210, increase the screen ratio of the electronic device 100, and facilitate the development of the electronic device 100 toward a full screen.
  • the through hole 210 is opened at the edge of the display screen 200 to reduce the influence on the screen display.
  • the optical module 20 in the distance measuring assembly 100 is located at a position corresponding to the through hole 210 of the display screen 200, and the distance sensor 10 can be disposed at other positions, for example, at For other positions inside the electronic device 100, it is only necessary to reserve a through hole 210 with a smaller size relative to the optical module 20.
  • the electronic device 100 further includes a housing (not shown) disposed opposite to the display screen 200, and the housing and the display screen 200 enclose a space to accommodate electronic components (such as a circuit board) ).
  • the provision of the ranging assembly 100 in the electronic device 900 means that the ranging assembly 100 is disposed in the space enclosed by the display screen 200 and the housing.
  • the distance measuring assembly 100 may be disposed on a circuit board (not shown), for example, soldered on the circuit board, and then may be electrically connected with other electronic components and a main control chip on the circuit board.
  • the distance sensor 10 is an infrared distance measuring sensor.
  • the infrared ranging sensor is used to generate infrared light signals.
  • the optical module 20 is used to convert the infrared light signal generated by the infrared distance measuring sensor into parallel light, emit it in a specific direction, and then emit it through the through hole 210. Wherein, the propagation direction of the parallel light is perpendicular to the through hole 210.
  • the infrared ranging sensor is further used to receive the infrared light signal reflected by the target object 800, and calculate between the electronic device 900 and the target object 800 according to the time or intensity of the received reflected infrared light signal distance.
  • the infrared ranging sensor since the infrared ranging sensor generates a beam of divergent infrared light signals, the divergent infrared light signals become parallel light after passing through the optical module 20 and then pass through the through holes 210 is emitted, and the width of the light passing through the optical module 20 is reduced. Therefore, the size of the through hole 210 can also be reduced accordingly, thereby increasing the screen ratio of the screen.
  • the distance sensor 10 may also be an optical displacement sensor, a linear proximity sensor, an ultrasonic displacement sensor, or the like.
  • the distance sensor 10 receives the infrared light signal reflected by the target object 800, and according to the received The time or intensity of the reflected light calculates the distance between the electronic device 900 and the object.
  • the electronic device 900 controls whether the display screen 200 goes out according to the distance. For example, when the user is on a call, the face will be close to the display screen 200, and the distance between the user's face and the display screen 200 is less than a preset value. Therefore, the electronic device 900 controls the display screen 200 to turn off the screen , So as not to cause misoperation due to the touch of the face during the call.
  • the distance sensor 10 includes a transmitter 11 and a receiver 12.
  • the transmitting end 11 is used to generate an optical signal;
  • the receiving end 12 is used to receive the reflected light reflected by the target object 800, and calculate the electronic device 900 and all the devices according to the time or intensity of the received reflected light
  • the distance between the target objects 800 is described.
  • the optical module 20 is disposed in the light emitting path of the emitting end 11.
  • the transmitting end 11 and the receiving end 12 are located at the same position, that is, the transmitting end 11 and the receiving end 12 are coaxially arranged, and the optical module 20 also extends close to the receiving end 12
  • the optical module 20 is further configured to convert the reflected light reflected by the target object 800 to the receiving end 12 after direction conversion, so that the receiving end 11 receives the light reflected by the target object 800 The optical signal.
  • the transmitting end 11 and the receiving end 12 may also exist separately and may communicate in a wireless manner.
  • the optical module 20 is a prism.
  • the prism includes an incident surface 21, a reflective surface 22, and an exit surface 23.
  • the incident surface 21 is opposite to the emitting end of the distance sensor 10 and is used to receive the optical signal generated by the distance sensor 10 and convert the optical signal into the first parallel light L1.
  • the reflecting surface 22 is used to receive the first parallel light L1 and reflect the first parallel light L1 to obtain second parallel light L2 emitted in the specific direction.
  • the second parallel light L2 passes through the light exit surface 23 and exits through the through hole 210.
  • the prism corresponds to the position of the through hole 210.
  • the incident surface 21 is a curved surface, and the incident surface 21 is convex toward the distance sensor 10.
  • the emitting end 11 is located at the focal point of the incident surface 21.
  • the reflecting surface 22 changes the propagation direction of the first parallel light L1, converts the first parallel light L1 into the second parallel light L2, and then exits through the light exit surface 23.
  • the light exit surface 23 faces the The through hole 210, and the propagation direction of the second parallel light L2 is perpendicular to the light exit surface 23 and the through hole 210.
  • the included angle between the first parallel light L1 and the second parallel light L2 is 90 degrees.
  • the prism is a triangular prism. Since the transmitting end 11 and the receiving end 12 of the distance sensor 10 do not directly face the through hole 210, the optical signal generated by the distance sensor 10 is collected and changed by the optical module 20 and then passed through The through hole 210 is emitted, so that the size of the through hole 210 can be reduced.
  • the present technical solution when the distance from the distance sensor 10 to the display screen 200 and the distance from the distance sensor 10 to the optical module 20 are equal (for example, both are H1), the present technical solution
  • the optical module 20 includes a reflective prism.
  • the reflective prism includes a reflective surface 231.
  • the reflective surface 231 is a curved surface.
  • the reflective prism is used to converge and The optical signal changes to parallel light traveling in the specific direction. .
  • the reflective prism is used to convert the optical signal into parallel light in a specific direction and emit it, and then emit it through the through hole 210.
  • the reflective prism corresponds to the position of the through hole 210, and the reflective prism is a concave mirror.
  • the optical module 20 includes a condensing prism and a reflecting prism, the condensing prism is used to condense the optical signal into parallel light, and the reflective prism is used to condense the parallel light
  • the propagation direction is changed to propagate along the specific direction.
  • the distance sensor 10 is provided at the focal point of the condenser prism.
  • the condensing prism and the reflecting prism in this embodiment can refer to FIG. 4, where the incident surface 21 can be equivalent to the condensing prism, and the reflecting surface 23 can be equivalent to the reflecting prism. It is separable, and the positional relationship between them can be changed according to requirements.
  • the optical module 20 is a condensing prism, and the condensing prism is disposed between the distance sensor 10 and the display screen 200.
  • the condensing prism is used to focus the direction of the optical signal generated by the distance sensor 10 into parallel light in a specific direction and then exit through the through hole 210.
  • the condensing prism is used to condense the optical signal generated by the distance sensor 10 into parallel light and emit it in a specific direction, and then emit it through the through hole 210.
  • the condensing prism corresponds to the position of the through hole 210, and the condensing prism includes a single convex lens or a convex lens group composed of a plurality of convex lenses.
  • the convex lens may be one of biconvex or plano-convex.
  • optical prism in the optical module 20 mentioned in this application can be replaced by one or more optical elements to achieve the same effect.
  • the use of the distance measuring component 100 in the electronic device 900 is only an application example.
  • the distance measuring component 100 can also be applied to other structures, and is not limited to the electronic device 900 including the display screen 200. .

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
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  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
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Abstract

提供一种电子装置（900），其表面开设一通孔（210）；电子装置（900）包括测距组件（100），测距组件（100）设置于电子装置（900）内，测距组件（100）包括：距离传感器（10），用于产生光信号；以及光学模组（20），设置于光信号的传播路径中，用于汇聚并改变光信号的传播方向并将光信号的传播路径转化为沿特定方向后从通孔（210）发射出去；光学模组（20）还用于接收自通孔（210）发射出去后被位于通孔（210）外的目标物体（800）反射回来的光信号并将反射回来的光信号传播至距离传感器（10）；距离传感器（10）还用于接收被目标物体（800）反射的光信号，并根据接收到光信号计算电子装置（900）与目标物体（800）之间的距离。还提供一种测距组件（100）。通过以上装置和组件能够减小显示屏开设的通孔（210）的尺寸，进而提高电子装置（900）的屏占比。

Description

电子装置及测距组件 技术领域
本申请涉及传感器技术领域，尤其涉及一种电子装置及测距组件。
背景技术
现有的电子装置(例如，手机)在通话过程中会利用距离传感器感测人脸与屏幕的距离从而使屏幕呈熄屏状态以达到节能和防止人脸触碰到屏幕引起误操作的目的。目前的技术主要为将距离传感器设置于屏幕的一侧，并在屏幕上开设通孔，使得距离传感器的发射端和接收端正对该通孔，进而通过该通孔发射和接收红外光以达到测距的目的。然而，由于红外距离检测器件体积大，使得屏幕上的通孔较大，从而影响了电子装置的屏占比，不利于电子装置朝全面屏发展。
发明内容
本申请实施例公开一种电子装置及测距组件，能够减小显示屏上的通孔的面积，从而能够提高电子装置的屏占比。
本申请实施例公开一种电子装置，所述电子装置表面开设一通孔；其特征在于，所述电子装置包括测距组件，所述测距组件设置于所述电子装置内，所述测距组件包括：
距离传感器，用于产生光信号；以及
光学模组，设置于所述光信号的传播路径中，用于汇聚并改变所述光信号的传播方向并将所述光信号的传播路径转化为沿特定方向后从所述通孔发射出去；
所述光学模组还用于接收自所述通孔发射出去后被位于所述通孔外的目标物体反射回来的所述光信号并将反射回来的所述光信号传播至所述距离传感器；
所述距离传感器还用于接收被目标物体反射的所述光信号，并根据接收到所述光信号计算所述电子装置与所述目标物体之间的距离。
本申请实施例公开一种测距组件，所述测距组件包括：
距离传感器，用于产生光信号；以及
光学模组，设置于所述光信号的传播路径中，用于汇聚并改变所述光信号的传播方向并将所述光信号的传播路径转化为沿特定方向后发射出去；
所述光学模组还用于接收发射出去后被目标物体反射回来的所述光信号并将反射回来的所述光信号传播至所述距离传感器；
所述距离传感器还用于接收被目标物体反射的光信号，并根据接收到的所述光信号计算所述电子装置与所述目标物体之间的距离。
本申请公开的电子装置及测距组件，由于所述测距组件不仅包括距离传感器还包括位于所述距离传感器一侧的光学模组，所述光学模组能够用于汇聚并改变所述光信号的传播方向并将所述光信号的传播路径转化为沿特定方向后发射出去，相对于采用距离传感器正对通孔发光的方式，能够减小所述光信号的传播路径的宽度，从而可以减小所述通孔的尺寸，提高了电子装置的屏占比，有利于电子装置朝全面屏的趋势发展。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请一实施例中的电子装置的主视图。
图2为本申请一实施例中的测距组件、显示屏和人脸的位置关系示意图。
图3为图2中测距组件的距离传感器的主视图。
图4为本申请一实施例中的测距组件的光路原理示意图。
图5为本申请另一实施例中的测距组件的光路原理示意图。
图6为本申请再一实施例中的测距组件的光路原理示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清 楚、完整地描述，显然，所描述的实施例仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
在本发明的实施方式的描述中，需要理解的是，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征。在本发明的实施方式的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本发明的实施方式的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“连接”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接或可以相互通讯；可以是直接连接，也可以通过中间媒介间接连接，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明的实施方式中的具体含义。
请参阅图1-2，其中，图1为本申请一实施例中的电子装置900的主视图，图2为本申请一实施例中的测距组件100和显示屏200之间位置关系的示意图。所述电子装置900的表面开设一通孔210，在本实施方式中，所述电子装置900包括测距组件100以及显示屏200。所述通孔210开设于所述显示屏200上。所述测距组件100设置于所述电子装置900内。所述测距组件100包括距离传感器10和光学模组20。所述距离传感器10用于产生光信号。所述光学模组20设置于所述距离传感器10的一侧且位于距离传感器10的出光路径中，用于汇聚并改变所述光信号的传播方向并将所述光信号的传播路径转化为特定方向后从通孔210发射出去。其中，汇聚是指减小光路的宽度，例如，经过汇聚后的光路中的最大直径会变小。所述光学模组20还用于接收所述光信号自所述通孔210发射出去后被位于所述通孔210外的目标物体800反射回来的所述光信号并将反射回来的所述光信号传播至所述距离传感器10。所述距离传感器10还用于接收出射光经目标物体800反射后经由通孔210进入电子装置900内的光信号，并根据接收到的光信号的时间计算所述电子装置900与目标物体800之间的距离。其中，接收到的光信号的时间是指光信号从发射到接 收的时间差。在其他实施方式中，所述距离传感器10还可以根据接收到的光信号的强度计算所述电子装置900与目标物体800之间的距离。
在一些实施例中，所述光学模组20用于将所述距离传感器10产生的光信号转换为平行光，并将所述平行光沿所述特定方向从所述通孔210发射出去。即，所述光学模组20不但对距离传感器10产生的光信号的方向进行转换，还对距离传感器10产生的光信号的形态进行转换，例如，将距离传感器10产生的束状光转换为平行光，然后再朝着特定方向发射出去。其中，所述特定方向为正对显示屏200的通孔210的方向，从而，所述光学模组20将所述距离传感器10产生的光信号的方向转化为正对通孔210的方向，再通过所述通孔210射出。
在本实施方式中，所述距离传感器10用于产生一束状光信号，即光线从一个点发出，且边沿的光线呈一定的夹角，因此，随着传播路径的变长光束越来越发散。所述目标物体800可以是人脸或者人体的其他部位。例如，当距离传感器10检测到所述电子装置900的预设距离范围内存在目标物体800时，可以计算出电子装置900和所述目标物体800之间的距离。可以理解，所述预设距离可以是8cm或者15cm，在此不做限定。
本申请所公开的电子装置900，由于所述测距组件100不仅包括距离传感器10还包括位于所述距离传感器10一侧的光学模组20，所述光学模组20能够汇聚并改变所述光信号的传播方向并将所述光信号的传播路径转化为特定方向后从通孔210发射出去，相对于采用距离传感器10正对通孔210发光的方式，能够减小所述光信号的传播路径的宽度，从而可以减小所述通孔210的尺寸，提高了电子装置100的屏占比，有利于电子装置100朝全面屏的趋势发展。
优选地，所述通孔210开设于所述显示屏200的边缘处以减小对屏幕显示的影响。在本实施方式中，所述测距组件100中的光学模组20位于与所述显示屏200的所述通孔210相对应的位置，而距离传感器10则可设置于其他位置，例如设置于电子装置100的内部的其他位置，从而仅需要相对光学模组20预留较小尺寸的通孔210即可。可以理解，所述电子装置100还包括与所述显示屏200相背设置的壳体(图未示)，所述壳体和所述显示屏200围成一 个空间以容纳电子元件(如电路板)。所述测距组件100设置于所述电子装置900内是指所述测距组件100设置于所述显示屏200和所述壳体围成的空间内。具体地，所述测距组件100可以设置于电路板上(图未示)，例如，焊接于所述电路板上，进而可以与电路板上的其他电子元件及主控芯片实现电性连接。
在一些实施方式中，所述距离传感器10为红外测距传感器。所述红外测距传感器用于产生红外光信号。所述光学模组20用于将所述红外测距传感器产生的红外光信号转化成平行光后朝着特定方向发射出去，再通过所述通孔210射出。其中，所述平行光的传播方向与所述通孔210垂直。所述红外测距传感器还用于接收经所述目标物体800反射的红外光信号，并依据接收到的反射的红外光信号的时间或强度计算所述电子装置900与所述目标物体800之间的距离。在本实施方式中，由于所述红外测距传感器产生的是一束状发散的红外光信号，所述发散的红外光信号经所述光学模组20后变成平行光后经所述通孔210发射，经过所述光学模组20后的光的宽度减小了，因此，所述通孔210的尺寸也可以相应的减小，从而提高了屏幕的屏占比。在其他实施方式中，所述距离传感器10还可以是光学式位移传感器、线性接近传感器及超声波位移传感器等。
具体地，当所述显示屏200与所述红外光组件100相背的一侧有目标物体800时，所述距离传感器10接收被所述目标物体800反射的红外光信号，并依据接收到的反射光的时间或强度计算所述电子装置900与所述物体之间的距离。所述电子装置900根据所述距离控制所述显示屏200是否熄屏。例如，当用户在通话时，脸部会贴近所述显示屏200，此时用户脸部与显示屏200之间的距离小于一预设值，因此，电子装置900控制所述显示屏200熄屏，以免在通话过程中因为脸部的触碰而引起误操作。
请再参阅图3，图3为本申请一实施例中的距离传感器10的主视图。在一些实施方式中，所述距离传感器10包括发射端11和接收端12。其中，所述发射端11用于产生光信号；所述接收端12用于接收经目标物体800反射后的反射光，并依据接收到的反射光的时间或强度计算所述电子装置900和所述目标物体800之间的距离。所述光学模组20设置于发射端11的发光路径中。 在本实施方式中，所述发射端11和接收端12位于同一位置，即，所述发射端11和所述接收端12同轴设置，所述光学模组20还延伸靠近所述接收端12设置，所述光学模组20还用于将所述目标物体800反射后的反射光进行方向转换后传输至所述接收端12，而使得所述接收端11接收被所述目标物体800反射的所述光信号。在其他实施方式中，所述发射端11和所述接收端12还可以单独存在并可以通过无线的方式进行通信。
请再参阅图4，在一个实施例中，所述光学模组20为棱镜。所述棱镜包括入射面21、反射面22及出射面23。所述入射面21与所述距离传感器10的发射端相对，用于接收所述距离传感器10产生的光信号，并将所述光信号转化成第一平行光L1。所述反射面22用于接收所述第一平行光L1，并对所述第一平行光L1进行反射以得到朝所述特定方向发射的第二平行光L2。所述第二平行光L2穿过所述出光面23后经所述通孔210射出。在本实施方式中，所述棱镜与所述通孔210的位置相对应。
在一些实施方式中，所述入射面21为曲面，所述入射面21朝所述距离传感器10的方向凸起。在本实施方式中，所述发射端11位于所述入射面21的焦点处。所述反射面22对所述第一平行光L1的传播方向进行改变，将所述第一平行光L1转化成所述第二平行光L2后经所述出光面23射出。
进一步地，为了避免所述出光面23对所述第二平行光L2的传播方向产生影响以及使得所述第二平行光L2能够全部通过所述通孔210射出，所述出光面23面向所述通孔210，且所述第二平行光L2的传播方向与所述出光面23及所述通孔210垂直。其中，所述第一平行光L1和所述第二平行光L2的夹角为90度。
可以理解，在本实施方式中，所述棱镜为三棱镜。由于所述距离传感器10的发射端11和接收端12没有正对所述通孔210，而是通过所述光学模组20对所述距离传感器10产生的光信号进行汇聚及改变方向后通过所述通孔210射出，从而能降低所述通孔210的尺寸。具体地，相对于现有技术，当距离传感器10距所述显示屏200的距离和所述距离传感器10距所述光学模组20的距离相等(例如，均为H1，)时，本技术方案中的所述通孔210的宽度H2＝2*H1*tan(θ)，而现有技术中的通孔210的宽度为H2＝2*(H1+显示屏200 的厚度)*tan(θ)。如此可见，采用本申请的技术方案可以有效的减小通孔210的尺寸，进而提高电子装置900的屏占比。
请再参阅图5，在另一实施方式中，所述光学模组20包括反射棱镜，所述反射棱镜包括反射面231，所述反射面231为曲面；所述反射棱镜用于汇聚并将所述光信号改变为沿所述特定方向传播的平行光。。具体地，所述反射棱镜用于将所述光信号转化成朝特定方向的平行光后发射出去，再经所述通孔210射出。在本实施方式中，所述反射棱镜与所述通孔210的位置相对应，且所述反射棱镜为凹面反射镜。
在另一些实施方式中，所述光学模组20包括聚光棱镜和反射棱镜，所述聚光棱镜用于将所述光信号汇聚为平行光，所述反射棱镜用于将所述平行光的传播方向改变为沿所述特定方向传播。在本实施方式中，所述距离传感器10设置于所述聚光棱镜的焦点处。需要说明的是，本实施方式中的聚光棱镜和反射棱镜可以参考图4，其中，入射面21即可等同聚光棱镜，反射面23即可等同反射棱镜，只是在本实施例中，其为可分离的，且可根据需求而改变相互之间的位置关系。
请再参阅图6，所述光学模组20为聚光棱镜，所述聚光棱镜设置于所述距离传感器10和所述显示屏200之间。所述聚光棱镜用于将所述距离传感器10产生的光信号的方向聚焦为特定方向的平行光后经所述通孔210射出。具体地，所述聚光棱镜用于对所述距离传感器10所产生的光信号汇聚为平行光后朝特定方向发射出去，再经所述通孔210射出。所述聚光棱镜与所述通孔210的位置相对应，且所述聚光棱镜包括单一的凸透镜或者由多个凸透镜组成的凸透镜组。其中，所述凸透镜可以为双凸或平凸的一种。
可以理解的是，本申请中提到的光学模组20中的光学棱镜可由一个或多个光学元件代替以达到相同的效果。
其中，本申请中，测距组件100用于电子装置900中仅仅是一个应用示例，所述测距组件100显然也可以应用于其他的结构中，并不限于包括显示屏200的电子装置900中。
以上对本申请实施例进行了详细介绍，本文中应用了具体个例对本申请的原理及实施例进行了阐述，以上实施例的说明只是用于帮助理解本申请的方法 及其核心思想；同时，对于本领域的一般技术人员，依据本申请的思想，在具体实施例及应用范围上均会有改变之处，综上，本说明书内容不应理解为对本申请的限制。

Claims (20)

  1. 一种电子装置，所述电子装置表面开设一通孔；其特征在于，所述电子装置包括测距组件，所述测距组件设置于所述电子装置内，所述测距组件包括：
    距离传感器，用于产生光信号；以及
    光学模组，设置于所述光信号的传播路径中，用于汇聚并改变所述光信号的传播方向并将所述光信号的传播路径转化为沿特定方向后从所述通孔发射出去；
    所述光学模组还用于接收自所述通孔发射出去后被位于所述通孔外的目标物体反射回来的所述光信号并将反射回来的所述光信号传播至所述距离传感器；
    所述距离传感器还用于接收被目标物体反射的所述光信号，并根据接收到所述光信号计算所述电子装置与所述目标物体之间的距离。
  2. 如权利要求1所述的电子装置，其特征在于，所述光学模组用于将所述距离传感器产生的光信号转换为平行光，并将所述平行光沿所述特定方向从所述通孔发射出去。
  3. 如权利要求1或2所述的电子装置，其特征在于，所述特定方向为正对所述通孔的方向。
  4. 如权利要求1所述的电子装置，其特征在于，所述距离传感器包括发射端和接收端；所述发射端用于产生所述光信号；所述接收端用于接收经所述目标物体反射后的所述光信号，并依据接收到的反射光的时间或强度计算所述电子装置与所述目标物体之间的距离，所述光学模组设置于所述发射端的发光路径中。
  5. 如权利要求4所述的电子装置，其特征在于，所述距离传感器的发射端和接收端设置于同一位置。
  6. 如权利要求4所述的电子装置，其特征在于，所述发射端和接收端位于所述距离传感器的同一面上，所述光学模组还延伸靠近所述接收端设置，所述光学模组还用于将所述目标物体反射后的反射光进行方向转换后传输至所述接收端，而使得所述接收端接收被所述目标物体反射的所述光信号。
  7. 如权利要求1所述的电子装置，其特征在于，所述光学模组包括棱镜；所述棱镜包括入射面、反射面及出射面；所述入射面与所述距离传感器相对，用于将所述距离传感器产生的所述光信号转化成第一平行光；所述反射面用于将所述第一平行光反射并改变为沿所述特定方向传播的第二平行光，所述第二平行光从所述出射面出射。
  8. 如权利要求7所述的电子装置，其特征在于，所述入射面为曲面，所述入射面朝所述距离传感器的方向凸起。
  9. 如权利要求7或8所述的电子装置，其特征在于，所述距离传感器包括所述发射端，所述发射端用于产生所述光信号；所述发射端位于所述入射面的焦点处。
  10. 如权利要求1所述的电子装置，其特征在于，所述光学模组模组包括反射棱镜，所述反射棱镜包括反射面，所述反射面为曲面；所述反射棱镜用于汇聚并将所述光信号改变为沿所述特定方向传播的平行光。
  11. 如权利要求1所述的电子装置，其特征在于，所述光学模组包括聚光棱镜和反射棱镜，所述聚光棱镜用于将所述光信号汇聚为平行光，所述反射棱镜用于将所述平行光的传播方向改变为沿所述特定方向传播。
  12. 如权利要求1所述的电子装置，其特征在于，所述光学模组为聚光棱镜，所述聚光棱镜设置于所述距离传感器和所述显示屏之间；所述聚光棱镜用于将所述光信号汇聚为平行光后从所述通孔射出。
  13. 如权利要求11或12所述的电子装置，所述距离传感器设置于所述聚光棱镜的焦点处。
  14. 一种测距组件，其特征在于，所述测距组件包括：
    距离传感器，用于产生光信号；以及
    光学模组，设置于所述光信号的传播路径中，用于汇聚并改变所述光信号的传播方向并将所述光信号的传播路径转化为沿特定方向后发射出去；
    所述光学模组还用于接收发射出去后被目标物体反射回来的所述光信号并将反射回来的所述光信号传播至所述距离传感器；
    所述距离传感器还用于接收被目标物体反射的所述光信号，并根据接收到的所述光信号计算所述电子装置与所述目标物体之间的距离。
  15. 如权利要求14所述的测距组件，其特征在于，所述光学模组用于将距离传感器产生的光信号转换为平行光，并将所述平行光沿所述特定方向发射出去。
  16. 如权利要求14所述的测距组件，其特征在于，所述距离传感器包括发射端和接收端；所述发射端用于产生所述光信号；所述接收端用于接收经所述目标物体反射后的所述光信号，并依据接收到的反射光的时间或强度计算所述电子装置与所述目标物体之间的距离，所述光学模组设置于所述发射端的发光路径中。
  17. 如权利要求14所述的测距组件，其特征在于，所述光学模组包括棱镜；所述棱镜包括入射面、反射面及出射面；所述入射面与所述距离传感器的发射端相对，用于接收所述距离传感器产生的光信号并将所述光信号转化成第一平行光；所述反射面用于将所述第一平行光反射并改变为沿所述特定方向传播的第二平行光。
  18. 如权利要求17所述的测距组件，其特征在于，所述入射面为曲面，所述入射面朝所述距离传感器的方向凸起。
  19. 如权利要求17或18所述的测距组件，其特征在于，所述距离传感器包括所述发射端，所述发射端用于产生所述光信号；所述发射端位于所述入射面的焦点处。
  20. 如权利要求14所述的测距组件，其特征在于，所述光学模组模组包括反射棱镜，所述反射棱镜包括反射面，所述反射面为曲面；所述反射棱镜用于汇聚并将所述光信号改变为沿所述特定方向传播的平行光。
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