CN112703718A

CN112703718A - Electronic device and ranging assembly

Info

Publication number: CN112703718A
Application number: CN201880096030.3A
Authority: CN
Inventors: 郑琼羽
Original assignee: Shenzhen Royole Technologies Co Ltd
Current assignee: Shenzhen Royole Technologies Co Ltd
Priority date: 2018-10-26
Filing date: 2018-10-26
Publication date: 2021-04-23
Also published as: WO2020082331A1

Abstract

Providing an electronic device (900) with a through hole (210) formed on the surface thereof; electronic device (900) includes range finding subassembly (100), and range finding subassembly (100) sets up in electronic device (900), and range finding subassembly (100) includes: a distance sensor (10) for generating an optical signal; the optical module (20) is arranged in the propagation path of the optical signal and is used for converging and changing the propagation direction of the optical signal and converting the propagation path of the optical signal into the optical signal which is emitted from the through hole (210) along a specific direction; the optical module (20) is also used for receiving an optical signal which is emitted from the through hole (210) and then reflected by a target object (800) positioned outside the through hole (210) and transmitting the reflected optical signal to the distance sensor (10); the distance sensor (10) is also used for receiving the light signal reflected by the target object (800) and calculating the distance between the electronic device (900) and the target object (800) according to the received light signal. A ranging assembly (100) is also provided. Through the device and the assembly, the size of the through hole (210) formed in the display screen can be reduced, and the screen occupation ratio of the electronic device (900) is further improved.

Description

Electronic device and ranging assembly

Technical Field

The application relates to the technical field of sensors, in particular to an electronic device and a distance measuring assembly.

Background

In the existing electronic device (for example, a mobile phone) during a call, a distance sensor is used to sense the distance between a human face and a screen, so that the screen is in a screen-off state, and the purposes of saving energy and preventing misoperation caused by the fact that the human face touches the screen are achieved. The existing technology is mainly to arrange the distance sensor on one side of the screen and to arrange a through hole on the screen, so that the transmitting end and the receiving end of the distance sensor are opposite to the through hole, and then infrared light is transmitted and received through the through hole to achieve the purpose of distance measurement. However, the infrared distance detection device is large in size, so that the through hole in the screen is large, the screen occupation ratio of the electronic device is affected, and the development of the electronic device towards a full screen is not facilitated.

Disclosure of Invention

The embodiment of the application discloses electronic device and range finding subassembly can reduce the area of the through-hole on the display screen to can improve electronic device's screen and account for than.

The embodiment of the application discloses an electronic device, wherein a through hole is formed in the surface of the electronic device; characterized in that, electron device includes the range finding subassembly, the range finding subassembly set up in the electron device, the range finding subassembly includes:

a distance sensor for generating an optical signal; and

the optical module is arranged in the propagation path of the optical signal and used for converging and changing the propagation direction of the optical signal and converting the propagation path of the optical signal into the propagation path along a specific direction and then emitting the optical signal from the through hole;

the optical module is further configured to receive the optical signal reflected by a target object located outside the through hole after being emitted from the through hole, and transmit the reflected optical signal to the distance sensor;

the distance sensor is further used for receiving the optical signal reflected by the target object and calculating the distance between the electronic device and the target object according to the received optical signal.

The embodiment of the application discloses range finding subassembly, range finding subassembly includes:

a distance sensor for generating an optical signal; and

the optical module is arranged in the propagation path of the optical signal and used for converging and changing the propagation direction of the optical signal and converting the propagation path of the optical signal into the propagation path along a specific direction and then transmitting the propagation path;

the optical module is also used for receiving the optical signal reflected by the target object after being emitted out and transmitting the reflected optical signal to the distance sensor;

the distance sensor is also used for receiving the optical signal reflected by the target object and calculating the distance between the electronic device and the target object according to the received optical signal.

The utility model discloses electronic device and range finding subassembly, because the range finding subassembly not only includes distance sensor still including being located the optical module of distance sensor one side, optical module can be used for gathering and changing light signal's direction of propagation and with light signal's propagation path turns into and launches after following specific direction, just to the luminous mode of through-hole for adopting distance sensor, can reduce light signal's propagation path's width, thereby can reduce the size of through-hole has improved electronic device's screen and has taken up the ratio, is favorable to electronic device towards the trend development of full screen.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a front view of an electronic device according to an embodiment of the present application.

Fig. 2 is a schematic diagram of a position relationship among a distance measuring assembly, a display screen, and a human face in an embodiment of the application.

FIG. 3 is a front view of a distance sensor of the ranging assembly of FIG. 2.

Fig. 4 is a schematic diagram of an optical path of a distance measuring assembly in an embodiment of the present application.

Fig. 5 is a schematic diagram of an optical path of a distance measuring assembly in another embodiment of the present application.

Fig. 6 is a schematic diagram illustrating an optical path of a distance measuring assembly according to still another embodiment of the present disclosure.

Detailed Description

The technical solutions in the embodiments of the present application will be described below clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the embodiments of the present invention, it should be understood that the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit indication of the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other suitable relationship. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.

Referring to fig. 1-2, fig. 1 is a front view of an electronic device 900 according to an embodiment of the present disclosure, and fig. 2 is a schematic diagram illustrating a position relationship between a distance measuring assembly 100 and a display screen 200 according to an embodiment of the present disclosure. A through hole 210 is formed in a surface of the electronic device 900, and in this embodiment, 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 ranging assembly 100 is disposed in the electronic device 900. The ranging 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 at one side of the distance sensor 10 and located in the light-emitting path of the distance sensor 10, and configured to converge and change the propagation direction of the optical signal, convert the propagation path of the optical signal into a specific direction, and then emit the optical signal from the through hole 210. The converging means to reduce the width of the optical path, for example, the maximum diameter of the optical path after converging becomes smaller. The optical module 20 is further configured 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 transmit the reflected optical signal to the distance sensor 10. The distance sensor 10 is further configured to receive an optical signal that the emergent light enters the electronic device 900 through the through hole 210 after being reflected by the target object 800, and calculate a distance between the electronic device 900 and the target object 800 according to a time of the received optical signal. The time of receiving the optical signal refers to the time difference from transmission to reception of the optical signal. In other embodiments, 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.

In some embodiments, the optical module 20 is configured 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-shaped light generated by the distance sensor 10 into parallel light, and then emits the parallel light in a specific direction. The specific direction is a 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 a direction facing the through hole 210, and emits the optical signal through the through hole 210.

In the present embodiment, the distance sensor 10 is used to generate a beam-shaped light signal, that is, light is emitted from a point, and the light at the edge is at a certain angle, so that the light beam is more and more divergent as the propagation path becomes longer. The target object 800 may be a human face or other part of a human body. For example, when the distance sensor 10 detects that the target object 800 exists within a preset distance range of the electronic device 900, the distance between the electronic device 900 and the target object 800 can be calculated. It is understood that the preset distance may be 8cm or 15cm, which is not limited herein.

The electronic device 900 disclosed in the present application, because the distance measuring component 100 not only includes distance sensor 10 but also includes and is located the optical module 20 of distance sensor 10 one side, optical module 20 can converge and change optical signal's direction of propagation and with optical signal's propagation path turns into and launches from through-hole 210 behind the specific direction, just to the luminous mode of through-hole 210 for adopting distance sensor 10, can reduce optical signal's propagation path's width, thereby can reduce through-hole 210's size has improved electronic device 100's screen and has occupied the ratio, is favorable to electronic device 100 towards the trend development of full-face screen.

Preferably, the through hole 210 is opened at the edge of the display screen 200 to reduce the influence on the screen display. In the present embodiment, 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 other positions inside the electronic device 100, so that only the through hole 210 with a smaller size needs to be reserved relative to the optical module 20. It is understood that 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 for accommodating electronic components (such as a circuit board). The distance measuring assembly 100 is disposed in the electronic device 900, that is, the distance measuring assembly 100 is disposed in a space enclosed by the display screen 200 and the housing. Specifically, the distance measuring assembly 100 may be disposed on a circuit board (not shown), for example, soldered on the circuit board, and further electrically connected to other electronic components and the main control chip on the circuit board.

In some embodiments, the distance sensor 10 is an infrared ranging sensor. The infrared distance measuring sensor is used for generating an infrared light signal. The optical module 20 is configured to convert an infrared light signal generated by the infrared distance measuring sensor into parallel light, emit the parallel light in a specific direction, and emit the parallel light through the through hole 210. Wherein the propagation direction of the parallel light is perpendicular to the through hole 210. The infrared distance measuring sensor is further configured to receive the infrared light signal reflected by the target object 800, and calculate a distance between the electronic device 900 and the target object 800 according to a time or an intensity of the received reflected infrared light signal. In this embodiment, the infrared distance measuring sensor generates a bundle of diverging infrared light signals, the diverging infrared light signals are changed into parallel light by the optical module 20 and then emitted through the through hole 210, and the width of the light passing through the optical module 20 is reduced, so that the size of the through hole 210 can be correspondingly reduced, thereby increasing the screen occupation ratio of the screen. In other embodiments, the distance sensor 10 may be an optical displacement sensor, a linear proximity sensor, an ultrasonic displacement sensor, or the like.

Specifically, when there is a target object 800 on the side of the display screen 200 opposite to the infrared light assembly 100, the distance sensor 10 receives the infrared light signal reflected by the target object 800, and calculates the distance between the electronic device 900 and the object according to the time or intensity of the received reflected light. The electronic device 900 controls whether the display screen 200 is turned off or not according to the distance. For example, when the user is in a call, the face of the user may be close to the display screen 200, and the distance between the face of the user and the display screen 200 is smaller than a preset value, so that the electronic device 900 controls the display screen 200 to turn off, so as to prevent a malfunction caused by the touch of the face during the call.

Referring to fig. 3 again, fig. 3 is a front view of the distance sensor 10 according to an embodiment of the present disclosure. In some embodiments, the distance sensor 10 includes a transmitting end 11 and a receiving end 12. Wherein, the transmitting terminal 11 is used for generating an optical signal; the receiving end 12 is configured to receive the reflected light reflected by the target object 800, and calculate a distance between the electronic device 900 and the target object 800 according to a time or an intensity of the received reflected light. The optical module 20 is disposed in the light emitting path of the emitting end 11. In this embodiment, 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 disposed, the optical module 20 further extends to be disposed close to the receiving end 12, and the optical module 20 is further configured to perform direction conversion on reflected light reflected by the target object 800 and transmit the converted reflected light to the receiving end 12, so that the receiving end 11 receives the optical signal reflected by the target object 800. In other embodiments, the transmitting end 11 and the receiving end 12 may exist separately and may communicate wirelessly.

Referring to fig. 4, in one embodiment, the optical module 20 is a prism. The prism includes an incident surface 21, a reflecting 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 for receiving the light signal generated by the distance sensor 10 and converting the light signal into first parallel light L1. The reflecting surface 22 is used for receiving the first parallel light L1 and reflecting the first parallel light L1 to obtain a second parallel light L2 emitted towards the specific direction. The second parallel light L2 passes through the light emitting surface 23 and then exits through the through hole 210. In the present embodiment, the prism corresponds to the position of the through hole 210.

In some embodiments, the incident surface 21 is a curved surface, and the incident surface 21 is convex toward the distance sensor 10. In the present embodiment, 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 emits the second parallel light L2 through the light emitting surface 23.

Further, in order to avoid the influence of the light emitting surface 23 on the propagation direction of the second parallel light L2 and to enable the second parallel light L2 to be emitted out through the through hole 210, the light emitting surface 23 faces the through hole 210, and the propagation direction of the second parallel light L2 is perpendicular to the light emitting surface 23 and the through hole 210. Wherein the included angle between the first parallel light L1 and the second parallel light L2 is 90 degrees.

It is to be understood that, in the present embodiment, 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, but the optical module 20 converges and changes the direction of the optical signal generated by the distance sensor 10 and then emits the optical signal through the through hole 210, the size of the through hole 210 can be reduced. Specifically, with respect to the prior art, when the distance between the distance sensor 10 and the display screen 200 is equal to the distance between the distance sensor 10 and the optical module 20 (for example, both H1,), the width H2 of the through hole 210 in the present embodiment is 2 × H1 × tan (θ), and the width H2 of the through hole 210 in the prior art is 2 × tan (θ) (H1+ the thickness of the display screen 200). Therefore, by adopting the technical scheme of the application, the size of the through hole 210 can be effectively reduced, and the screen occupation ratio of the electronic device 900 is further improved.

Referring to fig. 5 again, in another embodiment, the optical module 20 includes a reflective prism, the reflective prism includes a reflective surface 231, and the reflective surface 231 is a curved surface; the reflecting prism is used for converging and changing the optical signal into parallel light propagating along the specific direction. . Specifically, the reflection prism is used for converting the optical signal into parallel light in a specific direction, and then emitting the parallel light out through the through hole 210. In this embodiment, the reflecting prism corresponds to the position of the through hole 210, and the reflecting prism is a concave reflecting mirror.

In other embodiments, the optical module 20 includes a light-collecting prism for collecting the light signal into parallel light, and a reflecting prism for changing the propagation direction of the parallel light to propagate along the specific direction. In the present embodiment, the distance sensor 10 is provided at the focal point of the condensing prism. It should be noted that, the condensing prism and the reflection prism in the present embodiment can refer to fig. 4, wherein the incident surface 21 can be identical to the condensing prism, and the reflection surface 23 can be identical to the reflection prism, but in the present embodiment, they are separable, and the positional relationship between them can be changed according to the requirement.

Referring to fig. 6, the optical module 20 is a light-collecting prism, and the light-collecting prism is disposed between the distance sensor 10 and the display screen 200. The condensing prism is used for focusing the direction of the optical signal generated by the distance sensor 10 into parallel light in a specific direction and then emitting the parallel light through the through hole 210. Specifically, the light-collecting prism is configured to converge the light signal generated by the distance sensor 10 into parallel light, and then emit the parallel light in a specific direction, and then emit the parallel light through the through hole 210. The condensing prism corresponds to 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. Wherein the convex lens may be one of biconvex or plano-convex.

It will be appreciated that the optical prisms in the optical module 20 referred to in this application may be replaced by one or more optical elements to achieve the same effect.

Herein, the application of the distance measuring assembly 100 to the electronic device 900 is only one application example, and the distance measuring assembly 100 may also be applied to other structures, and is not limited to the electronic device 900 including the display screen 200.

The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and embodiments of the present application, and the above description of the embodiments is only provided to help understand the method and the core concept of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

An electronic device is provided, wherein a through hole is arranged on the surface of the electronic device; characterized in that, electron device includes the range finding subassembly, the range finding subassembly set up in the electron device, the range finding subassembly includes:

a distance sensor for generating an optical signal; and

the optical module is arranged in the propagation path of the optical signal and used for converging and changing the propagation direction of the optical signal and converting the propagation path of the optical signal into the propagation path along a specific direction and then emitting the optical signal from the through hole;

the optical module is further configured to receive the optical signal reflected by a target object located outside the through hole after being emitted from the through hole, and transmit the reflected optical signal to the distance sensor;

the distance sensor is further used for receiving the optical signal reflected by the target object and calculating the distance between the electronic device and the target object according to the received optical signal.
The electronic device of claim 1, wherein the optical module is configured to convert the optical signal generated by the distance sensor into parallel light and emit the parallel light from the through hole along the specific direction.
The electronic device according to claim 1 or 2, wherein the specific direction is a direction facing the through hole.
The electronic device of claim 1, wherein the distance sensor comprises a transmitting end and a receiving end; the transmitting end is used for generating the optical signal; the receiving end is used for receiving the optical signal reflected by the target object and calculating the distance between the electronic device and the target object according to the time or the intensity of the received reflected light, and the optical module is arranged in a light-emitting path of the transmitting end.
The electronic device of claim 4, wherein the transmitting end and the receiving end of the distance sensor are disposed at the same location.
The electronic device according to claim 4, wherein the transmitting end and the receiving end are located on the same plane of the distance sensor, the optical module further extends to be disposed near the receiving end, and the optical module is further configured to convert the direction of the reflected light reflected by the target object and transmit the converted reflected light to the receiving end, so that the receiving end receives the optical signal reflected by the target object.
The electronic device of claim 1, wherein the optical module comprises a prism; the prism comprises an incident surface, a reflecting surface and an emergent surface; the incidence surface is opposite to the distance sensor and is used for converting the optical signal generated by the distance sensor into first parallel light; the reflecting surface is used for reflecting and changing the first parallel light into second parallel light which propagates along the specific direction, and the second parallel light is emitted from the emitting surface.
The electronic device according to claim 7, wherein the incident surface is a curved surface, and the incident surface is convex in a direction of the distance sensor.
The electronic device of claim 7 or 8, wherein the distance sensor comprises the emitting end for generating the optical signal; the emitting end is located at a focus of the incident surface.
The electronic device according to claim 1, wherein the optical module comprises a reflective prism, the reflective prism comprises a reflective surface, and the reflective surface is a curved surface; the reflecting prism is used for converging and changing the optical signal into parallel light propagating along the specific direction.
The electronic device according to claim 1, wherein the optical module includes a light-condensing prism for condensing the optical signal into parallel light and a reflecting prism for changing a propagation direction of the parallel light to propagate in the specific direction.
The electronic device of claim 1, wherein the optical module is a light-collecting prism disposed between the distance sensor and the display screen; the light-gathering prism is used for gathering the light signal into parallel light and then emitting the parallel light out of the through hole.
The electronic device according to claim 11 or 12, wherein the distance sensor is disposed at a focal point of the condenser prism.
A ranging assembly, comprising:

a distance sensor for generating an optical signal; and

the optical module is arranged in the propagation path of the optical signal and used for converging and changing the propagation direction of the optical signal and converting the propagation path of the optical signal into the propagation path along a specific direction and then transmitting the propagation path;

the optical module is also used for receiving the optical signal reflected by the target object after being emitted out and transmitting the reflected optical signal to the distance sensor;

the distance sensor is further used for receiving the light signal reflected by the target object and calculating the distance between the electronic device and the target object according to the received light signal.
A ranging assembly as claimed in claim 14 wherein the optical module is adapted to convert the optical signal generated by the range sensor into parallel light and to emit the parallel light in the specific direction.
A ranging assembly as claimed in claim 14 wherein the range sensor comprises a transmitting end and a receiving end; the transmitting end is used for generating the optical signal; the receiving end is used for receiving the optical signal reflected by the target object and calculating the distance between the electronic device and the target object according to the time or the intensity of the received reflected light, and the optical module is arranged in a light-emitting path of the transmitting end.
A ranging assembly as claimed in claim 14 wherein the optical module comprises a prism; the prism comprises an incident surface, a reflecting surface and an emergent surface; the incidence surface is opposite to the transmitting end of the distance sensor and is used for receiving an optical signal generated by the distance sensor and converting the optical signal into first parallel light; the reflecting surface is used for reflecting and changing the first parallel light into second parallel light which propagates along the specific direction.
A ranging assembly as claimed in claim 17 wherein the entrance face is curved and is convex in the direction of the range sensor.
A ranging assembly as claimed in claim 17 or 18 wherein the range sensor comprises the transmitting end for generating the optical signal; the emitting end is located at a focus of the incident surface.
The range finder assembly of claim 14, wherein the optical module comprises a reflective prism, the reflective prism comprising a reflective surface, the reflective surface being curved; the reflecting prism is used for converging and changing the optical signal into parallel light propagating along the specific direction.