CN112732012B - Electronic equipment - Google Patents
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- CN112732012B CN112732012B CN201911036743.3A CN201911036743A CN112732012B CN 112732012 B CN112732012 B CN 112732012B CN 201911036743 A CN201911036743 A CN 201911036743A CN 112732012 B CN112732012 B CN 112732012B
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- 230000000007 visual effect Effects 0.000 claims description 15
- 238000001914 filtration Methods 0.000 claims description 10
- 239000012788 optical film Substances 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 abstract description 14
- 230000000694 effects Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000002452 interceptive effect Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000006872 improvement Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
- G06F1/1684—Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/08—Systems determining position data of a target for measuring distance only
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2250/00—Details of telephonic subscriber devices
- H04M2250/12—Details of telephonic subscriber devices including a sensor for measuring a physical value, e.g. temperature or motion
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Electromagnetism (AREA)
- Human Computer Interaction (AREA)
- General Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Signal Processing (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Abstract
The disclosure relates to an electronic device, which comprises a device main body and a distance sensing module. The optical filter is arranged for the distance sensing module, so that the optical filter is matched with the receiving end of the light receiving piece to filter interference light. The light emitting part emits light out of the equipment main body through the light transmitting part of the equipment main body, and forms first reflected light after encountering an external obstacle; the outgoing light rays encounter the reflecting part of the equipment main body to form second reflected light rays, and at least one of the outgoing light rays and the second reflected light rays forms interference light rays aiming at the first reflected light rays. The filter can prevent the light receiving part from receiving the interference light, and improves the sensing precision of the distance sensing module for determining the position of the external obstacle according to the first reflected light.
Description
Technical Field
The present disclosure relates to the field of electronics, and in particular, to electronic devices.
Background
In the related art, an electronic device such as a mobile phone generally includes a front distance sensing module for sensing a distance between an external obstacle and the electronic device, and implementing functions such as screen lighting and screen lighting according to the determination of the distance. However, due to the improvement of the screen ratio of the electronic equipment, the assembly space and the light propagation path of the distance sensing module are compressed, and interference light emitted to the receiving end of the distance sensing module is formed inside the electronic equipment, so that the sensing precision of the distance sensing module is reduced.
Disclosure of Invention
The disclosure provides an electronic device to optimize the structure setting of distance sensing module, avoid interfering the influence of light to distance sensing module response precision.
According to an embodiment of the disclosure, an electronic device is provided, which includes a device main body and a distance sensing module;
The distance sensing module is arranged below the screen of the equipment main body and comprises a sensing main body, a light emitting piece, a light receiving piece and a light filtering piece, wherein the light emitting piece, the light receiving piece and the light filtering piece are assembled on the sensing main body;
the device body includes a light transmitting portion and a reflecting portion; the light emitted by the light emitting piece is emitted out of the equipment main body through the light transmission part, and forms first reflected light after encountering an external obstacle; the emitted light rays meet the reflecting part to form second reflected light rays;
the emitted light and/or the second reflected light form interference light aiming at the first reflected light, and the filter is arranged at the receiving end of the light receiving part so as to filter the interference light.
Optionally, the optical filter is an optical film layer disposed at the receiving end.
Optionally, the distance sensing module further comprises a light shielding member; the light shielding piece is arranged between the light emitting piece and the light receiving piece so as to block the interference light through the light shielding piece.
Optionally, the light shielding member is disposed on an upper surface of the sensing body facing the screen and extends to an inner side surface of the screen.
Optionally, the emitting end of the light emitting piece is provided with an emitting opening, and the cross section of the emitting opening is semicircular.
Optionally, the light-transmitting portion is a gap formed by a first side wall of the screen and a second side wall of the device main body middle frame, and light-absorbing layers are disposed on the first side wall and the second side wall.
Optionally, the light-transmitting portion is disposed on the screen, and the structural size of the light-transmitting portion is smaller than a minimum visual resolution threshold of naked eyes.
Optionally, the light emitting element and/or the light receiving element are/is arranged obliquely with respect to the screen, so that the overlapping area of the emitting range of the emitted light and the receiving range of the light receiving element is moved upwards by a preset distance towards the screen.
Optionally, the distance sensing module further includes a light focusing element, and the light focusing element is matched with the emitting end of the light emitting element.
Optionally, the light emitting element is a vertical cavity surface emitting laser.
Optionally, the reflecting portion includes at least one of the screen inner side surface and the apparatus main body middle frame.
The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects:
The optical filter is arranged for the distance sensing module, so that the optical filter is matched with the receiving end of the light receiving piece to filter interference light. The light emitting part emits light out of the equipment main body through the light transmitting part of the equipment main body, and forms first reflected light after encountering an external obstacle; the outgoing light rays encounter the reflecting part of the equipment main body to form second reflected light rays, and at least one of the outgoing light rays and the second reflected light rays forms interference light rays aiming at the first reflected light rays. The filter can prevent the light receiving part from receiving the interference light, and improves the sensing precision of the distance sensing module for determining the position of the external obstacle according to the first reflected light.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.
FIG. 1 is a schematic diagram of an electronic device in an exemplary embodiment of the present disclosure;
FIG. 2 is a schematic diagram of a partially enlarged construction of an electronic device in an exemplary embodiment of the present disclosure;
FIG. 3 is a schematic view of a partially enlarged construction of an electronic device in another exemplary embodiment of the present disclosure;
FIG. 4 is a schematic view of a partially enlarged structure of an electronic device in accordance with still another exemplary embodiment of the present disclosure;
FIG. 5 is a schematic view of a partially enlarged structure of an electronic device in accordance with still another exemplary embodiment of the present disclosure;
Fig. 6 is a schematic structural view of an electronic device in another exemplary embodiment of the present disclosure.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the accompanying claims.
In the related art, an electronic device such as a mobile phone generally includes a front distance sensing module for sensing a distance between an external obstacle and the electronic device, and implementing functions such as screen lighting and screen lighting according to the determination of the distance. However, due to the improvement of the screen ratio of the electronic equipment, the assembly space and the light propagation path of the distance sensing module are compressed, and interference light emitted to the receiving end of the distance sensing module is formed inside the electronic equipment, so that the sensing precision of the distance sensing module is reduced.
Fig. 1 is a schematic structural view of an electronic device in an exemplary embodiment of the present disclosure. As shown in fig. 1, the electronic device 1 includes a device main body 11 and a distance sensing module 12. The distance sensing module 12 is disposed below the screen 111 of the device body 11, and the distance sensing module 12 includes a sensing body 124, and a light emitting member 121, a light receiving member 122 and a light filtering member 123 assembled on the sensing body 124. The device main body 11 includes a light transmitting portion 112 and a reflecting portion 113, and the emitted light from the light emitting member 121 is emitted out of the device main body 11 through the light transmitting portion 112, and forms a first reflected light after encountering an external obstacle 2, and forms a second reflected light after encountering the reflecting portion 113. Wherein, as shown in fig. 1, the solid arrows represent the emitted light, the dotted arrows represent the second reflected light, and the dashed arrows represent the first reflected light. The emitted light and/or the second reflected light form an interference light for the first reflected light, and the filter 123 is disposed at the receiving end 1221 of the light receiving element 122 to filter the interference light.
The reflecting portion 113 may be at least one of the inner side 1111 of the screen 111, the inner wall of the frame 114 in the device body 11, and other internal structures of the device body 11, so long as reflection of the emitted light can be formed, and the specific structure and position of the reflecting portion 113 are not limited in the present disclosure.
The distance sensing module 12 is provided with the optical filter 123, so that the optical filter 123 is matched with the receiving end 1221 of the light receiving element 122 to filter the interference light. Wherein, the emitted light emitted by the light emitting element 121 is emitted out of the device main body 11 through the light transmitting part 112 of the device main body 11, and forms a first reflected light after encountering the external obstacle 2; the outgoing light beam encounters the reflecting portion 113 of the apparatus body 11 to form a second reflected light beam, and at least one of the outgoing light beam itself and the second reflected light beam forms an interfering light beam with respect to the first reflected light beam. Since the interference light forms a background noise at the light receiving element 122, the filtering of the interference light by the filter 123 can prevent the light receiving element 122 from receiving the interference light, so as to improve the sensing accuracy of the distance sensing module 12 for determining the position of the external obstacle 2 according to the first reflected light.
In the above embodiment, the filter 123 may filter light rays that are directed to the surface of the receiving end 1221 within a predetermined angle range. For example, the predetermined angle range may be a range smaller than 15 degrees with respect to the surface of the receiving end 1221, and when the emitted light is emitted from the light emitting element 121, the emitted light propagates toward the light receiving element 122, and is emitted toward the receiving end 1221 in a direction forming an angle of 5 degrees with respect to the surface of the receiving end 1221, and the light filtering element 123 filters the emitted light, so that the emitted light cannot enter the light receiving element 122. The range of the preset angle can be set according to parameters such as the emission angle of the emitted light and the positional relationship of the internal structure of the distance sensing module 12, which is not limited in the disclosure.
The optical filter 123 may be an optical film disposed at the receiving end 1221 of the light receiving element 122, and the optical film may be directly formed at the receiving end 1221 of the light receiving element 122 by a film plating process, so as to reduce the assembling process of the optical filter 123; the optical film layer may also be disposed on the receiving end 1221 of the light receiving element 122 by a subsequent lamination process, so as to reduce the process cost. The light and thin structure based on the optical film layer reduces the occupation of the optical filter 123 to the internal space of the distance sensing module 12, and avoids the structural interference between the optical filter 123 and other functional modules of the distance sensing module 12. Alternatively, the filter 123 may be a filter structure with a filtering function, and the filter structure is assembled above the receiving end 1221 of the light receiving element 122.
It should be noted that, the receiving end 1221 may be a Photodiode (PD) disposed on the light receiving element 122, and the photodiode may be capable of converting the light received by the light receiving element 122 into a current signal, so that the sensing body 124 determines the distance between the external obstacle 2 forming the reflected light and the screen 111 according to the current signal.
As shown in fig. 2, the outgoing light is emitted from the light emitting member 121, the range between solid arrows represents the outgoing range of the outgoing light, and the range between broken arrows represents the receiving range of the light receiving member 122. In order to enhance the effect of isolating the interfering light, the distance sensing module 12 may further include a light shielding member 125, wherein the light shielding member 125 is disposed between the light emitting member 121 and the light receiving member 122 to block the interfering light through the light shielding member 125. Since when the intersection of the emission range and the reception range is below the inner side 1111 of the screen 111, a part of the emitted light forms a second reflected light with the reflection portion 113 of the apparatus main body 11; and there is also a part of the outgoing light directly emitted to the light receiving element 122, and the interference light at this time is composed of the second reflected light and the outgoing light. The light path of the emitted light and the second reflected light can be changed by the light shielding member 125 disposed between the light emitting member 121 and the light receiving member 122, and the overlapping region of the emitting range and the receiving range is moved upward toward the screen 111, so that the second reflected light can be further reduced or even prevented from being directed toward the light receiving member 122. The light shielding member 125 cooperates with the light filtering member 123 to provide dual protection against interference light.
Further, as shown in fig. 3, the light shielding member 125 is disposed on the upper surface 1241 of the sensing body 124 facing the screen 111 and extends to the inner side 1111 of the screen 111. That is, the light shielding member 125 is completely blocked between the light emitting member 121 and the light receiving member 122, so as to prevent the emitted light and the second reflected light from being emitted to the light receiving member 122, thereby improving the sensing accuracy of the distance sensing module 12.
In addition to providing the light shielding member 125 so that the overlapping region of the emission range and the reception range is shifted upward toward the screen 111, the position of the overlapping region of the emission range and the reception range can be changed in the manner shown in the following embodiment, thereby reducing or even avoiding the second reflected light from being directed toward the light receiving member 122:
In one embodiment, the emitting end 1211 of the light emitting element 121 is provided with an emitting opening, and the cross-sectional shape of the emitting opening is semicircular, so as to change the light path of the emitted light, and further move up the overlapping area of the emitting range and the receiving range. Because the upward movement of the overlapping area can reduce or even avoid the second reflected light from being emitted to the light receiving element 122, the above structure reduces the noise caused by the interference light at the light receiving element 122, and improves the accuracy of distance sensing.
In another embodiment, the light emitting part 121 and/or the light receiving part 122 are disposed obliquely with respect to the screen 111 such that the overlapping area of the emitting range of the emitted light and the receiving range of the light receiving part 122 is moved upward toward the screen 111 by a preset distance. That is, as shown in fig. 4, the light emitting member 121 may be individually disposed to be inclined with respect to the screen 111 to change the optical path of the emitted light, thereby moving up the overlapping region of the emitting range and the receiving range. The light receiving element 122 may be disposed so as to be inclined with respect to the screen 111 alone, so that the receiving range is deflected to a side away from the emitting range, and the overlapping region of the emitting range and the receiving range is moved upward. Alternatively, as shown in fig. 5, the light emitting element 121 and the light receiving element 122 may be disposed at the same time so as to be inclined with respect to the screen 111, such that the emission range is deflected to a side away from the emission range, and the receiving range is deflected to a side away from the receiving range, thereby realizing upward movement of the overlapping region of the emission range and the receiving range. Because the upward movement of the overlapping area can reduce or even avoid the second reflected light from being emitted to the light receiving element 122, the above structure reduces the noise caused by the interference light at the light receiving element 122, and improves the accuracy of distance sensing.
It should be noted that, by moving the overlapping area of the emitting range and the receiving range up to above the inner side 1111 of the screen 111 in the above manner, not only the second reflected light ray is reduced or even prevented from being emitted to the light receiving element 122, but also the interference of the reflected light ray formed by the black hair and the greasy dirt on the screen 111 on the first reflected light ray can be solved.
In addition, the distance sensing module 12 may be used with a common screen 111 or a full screen, which is not limited in this disclosure. The following exemplifies structural improvements of the electronic device 1 by taking several arrangement modes and arrangement positions of the light transmitting portions 112 as examples:
In one embodiment, as shown in fig. 6, the light-transmitting portion 112 is a gap formed between the first side wall 1112 of the screen 111 and the second side wall 1141 of the frame 114 in the device main body 11, and the light-absorbing layer 115 is disposed on the first side wall 1112 and the second side wall 1141. That is, the emitted light and the first reflected light propagate through the gap between the screen 111 and the middle frame 114 to enhance the display duty ratio and the overall display effect of the screen 111. The gaps compress the assembly space and the light propagation path of the distance sensing module 12, and the filter 123 and the light shielding member 125 in the above embodiment can block the interference light, so as to reduce the influence of the interference factors such as the structural size and the assembly space of the distance sensing module 12 on the distance sensing precision. And the light absorbing layer 115 disposed on the first sidewall 1112 and the second sidewall 1141 can absorb the emitted light irradiated thereon, so as to avoid generating reflected light interfering with the first reflected light, thereby further improving the accuracy of distance sensing. Further, the surface of the light absorbing layer 115 may be configured as a frosted structure, so that the outgoing light irradiated on the light absorbing layer 115 is diffusely reflected, thereby reducing the influence of the reflected light on the first reflected light.
It should be noted that the size of the gap may be less than 1mm, for example, the size of the gap is 0.6mm or 0.8mm, so as to reduce the influence of the gap on the overall appearance effect of the electronic device.
In another embodiment, the light-transmitting portion 112 is disposed on the screen 111, and the structural size of the light-transmitting portion 112 is smaller than the minimum visual resolution threshold of naked eyes, so as to improve the display ratio and the overall display effect of the screen 111. Because the size of the light-transmitting portion 112 is limited, the assembly space and the light propagation path of the distance sensing module 12 are compressed, and the light filter 123 and the light shielding member 125 in the above embodiment can block the interference light, so as to reduce the influence of the interference factors such as the structural size and the assembly space of the distance sensing module 12 on the distance sensing accuracy.
Wherein, when the screen 111 is a full screen, the light transmitting portion 112 is disposed in the display area of the screen 111; when the screen 111 is a normal screen, that is, the screen 111 includes a display area and a non-display area, the light transmitting portion 112 may be disposed in the display area or the non-display area.
Note that, the structural size of the light-transmitting portion 112 is smaller than the minimum visual resolution threshold of the naked eye. The minimum visual discrimination threshold of the naked eye forms a minimum size range that can be observed by the naked human eye, and when the structural size of the light-transmitting portion 112 is smaller than a value within the range, the user cannot observe the light-transmitting portion 112, and the screen 111 has a complete display and appearance effect from the appearance. When the visual resolution threshold is set, taking the individual difference of different users into consideration, a large number of experiments can be carried out to obtain the average value of the visual resolution thresholds of a large number of users as the minimum visual resolution threshold of naked eyes; alternatively, the theoretical value of the smallest size range that can be observed by the human eye may be used as the minimum visual resolution threshold of the human eye. The setting of the minimum visual resolution threshold of naked eyes can be freely set based on different application scenes (day, night, etc.), user groups, and other factors affecting human visual experience, and the disclosure is not limited in particular.
Preferably, based on the observation capability of naked eyes, the setting requirement of the screen 111 and the processing technology, the minimum visual resolution threshold of the naked eyes can be less than or equal to 100 micrometers, so as to improve the concealment of the light-transmitting portion 112 and increase the overall appearance and display effect of the screen 111. Or based on the application scene of the screen 111 and different user groups, the range of the minimum visual resolution threshold of naked eyes can be slightly increased, for example, the minimum visual resolution threshold of naked eyes is smaller than or equal to 150 micrometers, so that the processing difficulty is reduced on the premise of ensuring the overall display effect of the screen 111.
Note that, the light-transmitting portion 112 may be a light-transmitting hole provided on the screen 111, or may be a light-transmitting structure provided on the screen 111 and adapted to the type of the emitted light, which is not limited in this disclosure. Taking the light transmitting portion 112 as an example, when the light emitting member is an infrared emitting member, the material of the light transmitting structure may be a material with an infrared transmittance of more than 80% so as to ensure the sensing effect of the distance sensing module 12.
Based on the above-described case where the structural size of the light transmitting portion 112 is smaller than the minimum visual discrimination threshold of the naked eye, or other cases where the structural size of the light transmitting portion 112 is smaller, it is also necessary to limit the emission angle α of the emitted light of the light emitting element 121. The method can be realized by the following steps:
In an embodiment, the light emitting element 121 may be a vertical cavity surface emitting laser, where the emitting angle α of the vertical cavity surface emitting laser is small, and the emitted energy is concentrated, which on one hand has smaller requirements on the structural size of the light transmitting portion 112, so as to help to increase the duty ratio of the screen 111, and on the other hand, the emitting range of the emitted light is concentrated, so that the second reflected light formed after the emitted light encounters the reflecting portion 113 is reduced, and thus, the noise interference of the interference light on the light receiving element 122 is reduced.
In another embodiment, the light emitting element 121 may be a vertical cavity surface emitting laser (Vscel) or an infrared Light Emitting Diode (LED), and the distance sensing module 12 further includes a light collecting element (not labeled), and the light collecting element is matched with the emitting end 1211 of the light emitting element 121 to reduce the emitting angle α of the emitted light and the light scattering range. When the light emitting element 121 is an infrared light emitting diode, the emitted light is an infrared light. In particular, the infrared light may be 850nm/940nm infrared light. In the use process of the light emitting element 121, the emitting angle α of the infrared light is large, the reflection light path is many, and most of the emitted light is emitted to generate the second reflection light through the reflection portion 113 of the device main body 11 to interfere with the sensing accuracy of the distance sensing module 12, so that the light collecting element can reduce the emitting angle α of the infrared light to gather the emitted light to a preset range.
When the light emitting element 121 is a vertical cavity surface emitting laser, the emitted light is laser, and the light collecting element can further reduce the emitting angle α of the laser, so as to collect the emitted light. The further-gathered emitted light has a further reduced structural size requirement on the light-transmitting portion 112, thereby helping to increase the duty ratio of the screen 111; on the other hand, the emission range of the emitted light is further concentrated, so that the second reflected light formed after the emitted light encounters the reflecting portion 113 is reduced, and the noise interference of the interference light on the light receiving element 122 is reduced.
The distance sensing module 12 is provided with the optical filter 123, so that the optical filter 123 is matched with the receiving end 1221 of the light receiving element 122 to filter the interference light. Wherein, the emitted light emitted by the light emitting element 121 is emitted out of the device main body 11 through the light transmitting part 112 of the device main body 11, and forms a first reflected light after encountering the external obstacle 2; the outgoing light beam encounters the reflecting portion 113 of the apparatus body 11 to form a second reflected light beam, and at least one of the outgoing light beam itself and the second reflected light beam forms an interfering light beam with respect to the first reflected light beam. The filtering of the interference light by the filter 123 can prevent the light receiving part 122 from receiving the interference light, and improve the sensing accuracy of the distance sensing module 12 to the external obstacle 2.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosed technology. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (10)
1. An electronic device is characterized by comprising a device main body and a distance sensing module;
The distance sensing module is arranged below the screen of the equipment main body and comprises a sensing main body, a light emitting piece, a light receiving piece and a light filtering piece, wherein the light emitting piece, the light receiving piece and the light filtering piece are assembled on the sensing main body;
the device body includes a light transmitting portion and a reflecting portion; the light emitted by the light emitting piece is emitted out of the equipment main body through the light transmission part, and forms first reflected light after encountering an external obstacle; the emitted light rays meet the reflecting part to form second reflected light rays;
The emitted light and/or the second reflected light form interference light aiming at the first reflected light, and the filter is arranged at the receiving end of the light receiving piece so as to filter the interference light;
the light emitting part is provided with an emitting range, the light receiving part is provided with a receiving range, the light emitting part and the light receiving part are obliquely arranged relative to the screen, the emitting range deflects towards one side far away from the receiving range, and the receiving range deflects towards one side far away from the emitting range, so that the overlapping area of the emitting range of the emitted light and the receiving range of the light receiving part moves upwards towards the screen by a preset distance.
2. The electronic device of claim 1, wherein the filter is an optical film layer disposed at the receiving end.
3. The electronic device of claim 1, wherein the distance sensing module further comprises a light shielding member; the light shielding piece is arranged between the light emitting piece and the light receiving piece so as to block the interference light through the light shielding piece.
4. The electronic device of claim 3, wherein the light shielding member is disposed on an upper surface of the sensing body facing the screen and extends to an inner side surface of the screen.
5. The electronic device according to claim 1, wherein the emitting end of the light emitting member is provided with an emitting opening, and the cross-sectional shape of the emitting opening is a semicircle.
6. The electronic device according to claim 1, wherein the light-transmitting portion is a slit formed by a first side wall of the screen and a second side wall of the device main body middle frame, and light-absorbing layers are provided on the first side wall and the second side wall.
7. The electronic device of claim 1, wherein the light transmissive portion is disposed on the screen, the light transmissive portion having a structural dimension that is less than a minimum visual resolution threshold of an unaided eye.
8. The electronic device of claim 1, wherein the distance sensing module further comprises a light gathering member, the light gathering member being coupled to the light emitting end of the light emitting member.
9. The electronic device of claim 1, wherein the light emitting element is a vertical cavity surface emitting laser.
10. The electronic device according to claim 1, wherein the reflecting portion includes at least one of the screen inner surface and the device main body bezel.
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| CN201911036743.3A CN112732012B (en) | 2019-10-29 | 2019-10-29 | Electronic equipment |
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| CN201911036743.3A CN112732012B (en) | 2019-10-29 | 2019-10-29 | Electronic equipment |
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| CN112732012A CN112732012A (en) | 2021-04-30 |
| CN112732012B true CN112732012B (en) | 2024-06-04 |
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