CN115144948A - Light guide structure and terminal equipment thereof - Google Patents
Light guide structure and terminal equipment thereof Download PDFInfo
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- CN115144948A CN115144948A CN202110344435.8A CN202110344435A CN115144948A CN 115144948 A CN115144948 A CN 115144948A CN 202110344435 A CN202110344435 A CN 202110344435A CN 115144948 A CN115144948 A CN 115144948A
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- 230000002093 peripheral effect Effects 0.000 claims abstract description 13
- 239000011521 glass Substances 0.000 claims description 15
- 239000003973 paint Substances 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 15
- 230000000694 effects Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003071 parasitic effect Effects 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003486 chemical etching Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
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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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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The disclosure relates to a light guide structure and a terminal device thereof, wherein the light guide structure comprises a light guide column and a shading unit; the light guide column comprises a first incidence surface, the first incidence surface is formed on the peripheral side wall of the light guide column, and the shading unit is arranged on the first incidence surface to prevent light incident to the first incidence surface from entering the light guide column. In this disclosure, light is prevented from entering the light guide column from the first incident surface through the shading unit, so that the light leakage phenomenon is avoided, and the accuracy of the measurement result is ensured.
Description
Technical Field
The present disclosure relates to the technical field of terminal equipment, and in particular, to a light guide structure and terminal equipment thereof.
Background
With the development of science and technology, terminal devices such as mobile phones and the like have become one of indispensable articles in life of people. The mobile phone and other terminal devices not only facilitate communication of people, but also provide payment or entertainment functions for users, and bring great convenience to life of people.
A plurality of sensor assemblies are usually equipped in a terminal device such as a mobile phone, so as to meet the requirement of a user on terminal device intellectualization. The control system of the terminal equipment can adjust the working state of the terminal equipment according to the change of the parameter value measured by the sensor component so as to meet the use requirement of a user. The problem to be solved urgently is to improve the accuracy of the measurement result of the sensor assembly in the terminal equipment.
Disclosure of Invention
To overcome the problems in the related art, the present disclosure provides a light guide structure and a terminal device thereof.
According to a first aspect of the embodiments of the present disclosure, there is provided a light guide structure, including a light guide pillar and a light shielding unit;
the light guide column comprises a first incidence surface, the first incidence surface is formed on the peripheral side wall of the light guide column, and the shading unit is arranged on the first incidence surface to prevent light incident to the first incidence surface from entering the light guide column.
Optionally, the light shielding unit includes a black paint layer.
Optionally, the light guide pillar includes a light guide body, and the first incident surface is formed on the light guide body;
the light guide column also comprises a second incident surface, the second incident surface is formed at the free end part of the light guide body, and light outside the light guide structure enters the light guide body through the second incident surface;
the light guide column further comprises a light outlet surface, the light outlet surface is formed at the fixed end part of the light guide body, and light incident into the light guide body is guided out of the light guide body through the light outlet surface.
Optionally, the light guide structure further includes a scattering unit disposed on the second incident surface, and the scattering unit is configured to scatter light incident on the second incident surface.
Optionally, the light guide pillar further comprises a light guide base, the light guide base is fixedly connected with the fixed end portion of the light guide body, and light guided out from the light emergent surface enters the light guide base.
Optionally, the light guide structure further includes a frosted structure formed on a peripheral sidewall of the light guide body, and the light shielding unit is disposed on a surface of the frosted structure away from the light guide body;
the frosted structure is used for forming diffuse reflection for light incident into the light guide body.
Optionally, the light guide structure further includes a frosting layer disposed on the peripheral side wall of the light guide body, and the frosting layer is disposed between the light guide body and the light shading unit.
According to a second aspect of the embodiments of the present disclosure, there is provided a terminal device, the terminal device comprising a sensor assembly, and the light guide structure as described above, the sensor assembly being connected to the light guide structure;
in the mounted state, light outside the terminal device propagates to the sensor assembly through the light guide structure.
Optionally, the terminal device further includes a housing and a glass cover plate mounted on the housing, and an accommodating space is provided between the housing and the glass cover plate;
the light guide body of the light guide structure is arranged in the glass cover plate, and the light guide base of the light guide structure is arranged in the accommodating space; the sensor assembly is arranged on one side of the light guide base far away from the light guide body.
Optionally, the terminal device further includes a display screen, and the glass cover plate is covered on the display screen to limit the movement of the display screen relative to the housing.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: in this disclosure, light is prevented from entering the light guide column from the first incident surface through the shading unit, so that the light leakage phenomenon is avoided, and the accuracy of the measurement result is ensured.
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 invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic diagram of a terminal device shown according to an example embodiment.
Fig. 2 is a schematic diagram of a light guiding structure shown according to an exemplary embodiment.
Fig. 3 is a schematic view of a light guiding body shown according to an exemplary embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
With the continuous evolution of terminal devices, the terminal devices in a folded state gradually become a development trend. A sensor assembly, such as a light sensor, needs to be adapted to the terminal device in the folded configuration. The light sensor can sense the light intensity of the surrounding environment according to the environment of the terminal equipment, and feeds the result back to the terminal equipment, so that the aim of automatically adjusting the screen brightness of the terminal equipment is fulfilled, and the optimal visual effect is brought to a user. Meanwhile, the screen brightness is automatically adjusted, and the effect of saving electricity can be achieved.
In the related art, the light sensor is usually disposed at a narrow slit of the screen in the terminal device having the folded configuration. However, the narrow slit may have a light leakage problem, which further affects the measurement result of the light sensor, and may not provide accurate measurement data for the terminal device.
The present disclosure provides a light guide structure, which includes a light guide pillar and a light shielding unit. The light guide column comprises a first incident face formed on the peripheral side wall of the light guide column, and the shading unit is arranged on the first incident face to prevent light incident to the first incident face from entering the light guide column. In this openly through shading unit stop light get into the leaded light post by first incident surface, avoid the emergence of light leak phenomenon, guarantee measuring result's accuracy.
In an exemplary embodiment, as shown in fig. 1-3, a light guide structure 1, the light guide structure 1 is mounted to a terminal device and used with a sensor assembly 2 of the terminal device so that the sensor assembly 2 can perform a measurement of light energy. The light guide structure 1 includes, for example, a light guide post 11 and a light shielding unit 12. The light guide post 11 is made of, for example, a transparent material, has good light transmittance, and realizes a light transmission function.
In the present embodiment, as shown in fig. 1 to 3, the light shielding unit 12 includes, for example, a black paint layer to shield the light at the first incident surface 1111.
In an example, the black paint layer is, for example, a black ink layer, and the black ink layer is coated on the surface of the first incident surface 1111 and is dried to form the black ink layer attached to the surface of the first incident surface 1111, so as to prevent stray light from entering the light guide bar 11 from the first incident surface 1111.
In another example, the black paint layer may be a black paint layer, for example, and the black paint is coated on the surface of the first incident surface 1111, and may also isolate stray light, so as to prevent the stray light from entering the light guide pillar 11 and affecting the propagation effect of the light in the light guide pillar 11.
Here, the light guide bar 11 may have a solid structure or a hollow structure, for example. The optical fiber is not particularly limited, and may be designed as long as the function of light transmission can be achieved.
In one exemplary embodiment, as shown in fig. 1 to 3, the light guide pole 11 includes a light guide body 111, and the first incident surface 1111 is formed on a peripheral sidewall of the light guide body 111. The light guide body 111 may be, for example, a cylindrical body, and a circumferential outer side wall of the light guide body 111 is the first incident surface 1111. Of course, it is understood that the light guide body 111 is not limited to be a cylindrical body, and the light guide body 111 may also be a square cylindrical body, which is not specifically limited herein.
In the present embodiment, as shown in fig. 1-3, the light guide body 111 includes a free end portion 1111 and a fixed end portion 1112, the light guide column 11 further includes a second incident surface 11111, and the second incident surface 11111 is formed on the surface of the free end portion 1111 of the light guide body 111. Light outside the light guide structure 1 enters the light guide body 111 through the second incident surface 11111, so that the light propagation effect is realized.
The light guide pillar 11 further includes a light exit surface 11121, the light exit surface 11121 is formed at the fixed end 1112 of the light guide body 111, and the light incident into the light guide body 111 is guided out of the light guide body 111 through the light exit surface 11121. The light emitting surface 11121 is opposite to the second incident surface 11111.
In the present embodiment, as shown in fig. 1 to fig. 3, the light guide post 11 further includes a light guide base 112, and the light guide base 112 is fixedly connected to the fixing end 1112 of the light guide body 111, so that the light guided out from the light exit surface 11121 can enter the light guide base 112. In the installed state, the light in the light guide base 112 can be transmitted to the sensor assembly 2 disposed on the light guide base 112, and the sensor assembly 2 receives the light outside the terminal device by using the light guide structure 1, thereby completing the measurement of the light energy of the surrounding environment.
The light guide base 112 may be bonded to the light guide body 111 through an optical transparent adhesive, and the light guide base 112 may be integrally formed with the light guide body 111 through injection molding.
According to the optical principle, light outside the light guide structure 1 in this embodiment enters the light guide body 111 through the second incident surface 11111 after a series of optical reactions such as transmission, refraction, and reflection, and is guided out of the light guide body 111 to the light guide base 112 through the light exit surface 11121, thereby completing the light transmission function.
In the present embodiment, as shown in fig. 1 to fig. 3, the light guiding structure 1 further includes a scattering unit 13, the scattering unit 13 is disposed on the second incident surface 11111, and the scattering unit 13 is configured to scatter light incident on the second incident surface 11111. The scattering unit 13 is, for example, a white Junguang ink applied to the second incident surface 11111, so that the light is scattered when the light is incident from the second incident surface 11111.
In an exemplary embodiment, as shown in fig. 1-3, the light guide body 111 is formed with a reflective surface 1113, the reflective surface 1113 is also located at a circumferential sidewall of the light guide body 111, and the reflective surface 1113 is disposed opposite to the second incident surface 11111. When light enters the light guide body 111, the light propagates to the reflective surface 1113, and the light inside the light guide body 111 continuously undergoes mirror reflection (see the light path shown in fig. 1) through the reflective surface 1113, and finally propagates to the light exit surface 11121, and enters the light guide base 112 through the light exit surface 11121, so that the sensor assembly 2 on the light guide base 112 can receive light energy.
The continuous reflection phenomenon formed by the reflective surface 1113 may cause the energy of the light received by the sensor assembly 2 to be different. For example, the light transmitted to the sensor assembly 2 may have a light energy received by a partial angle that is too strong, or a light energy received by a partial angle that is too weak, so that the accuracy of the measurement result of the sensor assembly 2 cannot be ensured.
In one example, the light guide structure 1 further includes a frosted structure 1114 formed on the peripheral sidewall of the light guide body 111, and the light shielding unit 12 is disposed on a side of the frosted structure 1114 away from the light guide body 111. The frosted structure 1114 may be formed by chemical etching, for example, so that the frosted structure 1114 and the light guide body 111 are an integral structure, and the light shielding unit 12 is coated on the frosted structure 1114.
The frosted structure 1114 is used for forming a rugged shape on the peripheral side wall of the light guide body 111, and the frosted structure 1114 is used for forming diffuse reflection on light entering the light guide body 111, so that the energy of the light received by the sensor assembly 2 from all angles is ensured, and no too large difference exists, thereby improving the accuracy of measurement of the sensor assembly 2.
In another example, the light guide structure 1 further includes a frosted layer 1115 disposed on the peripheral sidewall of the light guide body 111, and the frosted layer 1115 is disposed between the light guide body 111 and the light shielding unit 12.
The frosted layer 1115 is, for example, a film structure having roughness, the frosted layer 1115 is adhered to the peripheral sidewall of the light guide body 111 through an optically transparent adhesive, and the light shielding unit 12 is coated on the frosted layer 1115. The light in the light guide body 111 is diffused and reflected by the frosted layer 1115, so that the difference of energy between the light with different angles received by the sensor assembly 2 is reduced.
In the mounted state, the axial direction (see the Z-axis direction shown in fig. 1) of the light guide post 11 of the light guide structure 1 is the same as the thickness direction of the terminal device. Because the light guide column 11 is long in the axial extension direction, when the light propagates to the reflecting surface 1113, a mirror reflection is formed, which further causes the viewing angle field distortion of the sensor assembly 2, and affects the accuracy of the measurement result of the sensor assembly 2. The frosted structure 1114 or layer 1115 can resolve the specular reflection problem and improve the accuracy of the measurement result of the sensor assembly 2.
In the light guide structure in the present disclosure, when the light guide structure 1 is installed to the terminal device, the light guide structure 1 may be juxtaposed with the display screen along the length direction of the terminal device (refer to the Z-axis direction shown in fig. 1) or along the width direction of the terminal device (refer to the X-axis direction and the Y-axis direction shown in fig. 1), so that a partial overlapping area exists in the thickness direction of the terminal device between the light guide body 111 and the display screen 6 of the terminal device. When the display screen 6 is in an operating state, light on the side of the display screen 6 can be transmitted to the first incident surface 1111 of the light guide body 111, and then enter the light guide body 111 to interfere with light entering the light guide body 111 through the second incident surface 11111. The light shielding unit 12 can isolate the light on the display screen 6 side, thereby avoiding the problem of light crosstalk in the light guide body 111.
Meanwhile, after the light on the display screen 6 side propagates to the light shielding unit 12 of the first incident surface 1111, a reflection phenomenon may occur. The reflection of light back to the display screen 6 may affect the display effect of the display screen 6. The combination of the light shield 12 with the frosted structure 1114 or frosted layer 1115 can also achieve an absorbing effect, reducing the impact on the display screen 6.
The present disclosure also provides a terminal device, which includes a sensor assembly and a light guide structure, wherein the sensor assembly is connected to the light guide structure. In the mounted state, light outside the terminal device propagates through the light guiding structure to the sensor assembly to complete the measurement of the light energy.
In an exemplary embodiment, as shown in fig. 1-3, a terminal device, such as a mobile phone, a tablet computer, etc. The terminal equipment comprises a sensor component 2 and a light guide structure 1, wherein the sensor component 2 is connected with the light guide structure 1 to realize the intelligent design of the terminal equipment.
In the mounted state, light outside the terminal device propagates through the light guiding structure 1 to the sensor assembly 2. The sensor assembly 2 is, for example, a light sensor, and the sensor assembly 2 is electrically connected to a main board (not shown) of the terminal device through a circuit board (not shown) to realize data transmission. The Circuit board is, for example, a Flexible Printed Circuit (FPC).
In the present embodiment, as shown in fig. 1 to fig. 3, the terminal device further includes a housing 3, and a glass cover plate 4 mounted on the housing 3, and an accommodating space 5 is provided between the housing 3 and the glass cover plate 4.
In one example, the glass cover 4 has a through hole 41 along a thickness direction of the terminal device (refer to a Z-axis direction shown in fig. 1), the light guide body 111 of the light guide structure 1 is installed in the through hole 41 of the glass cover 4, and the light guide base 112 of the light guide structure 1 is installed in the accommodating space 5. The sensor assembly 2 is disposed on a side of the light guide base 112 away from the light guide body 111.
In this embodiment, as shown in fig. 1 to fig. 3, the terminal device further includes a display screen 6, and the glass cover plate 4 covers the display screen 6 to limit the movement of the display screen 6 relative to the housing 3.
Wherein the terminal device is, for example, a terminal device having a folded configuration, such that the display screen 6 is also in the folded configuration, and the sensor assembly 2 is disposed on the display screen 6. The sensor assembly 2 is structurally configured and cannot be disposed on the surface of the display screen 6, and the sensor assembly 2 is disposed in the accommodating space 5 formed between the housing 3 and the glass cover plate 4. And the sensor assembly 2 cannot receive light energy, the light guide structure 1 can be used to lift the receiving surface of the sensor assembly 2, so as to complete the measurement of the light energy of the surrounding environment.
In the terminal device of the present disclosure, light outside the terminal device penetrates through the glass cover plate 4 to the light guide body 111 of the light guide structure 1, enters the light guide body 111 from the first incident surface 1111, and is reflected by the reflective surface 1113 and then propagates to the light exit surface 11121. And enters the light guide base 112 through the light exit surface 11113, so that the sensor assembly 2 can receive the light energy and measure the light energy. The outer diameter of the light guide body 111 is smaller than that of the light guide base 112, and the light path is enlarged by using the light guide base 112, so that the sensor assembly 2 can further receive the light energy to complete the measurement procedure.
In one example, the viewing angle ratio of the view angle field of the sensor assembly 2 is w = arctan (D/2H), for example. Wherein D is the outer diameter of the light guide body 111, and H is the height of the light guide post 11 along the axis direction thereof. The optical measurement effect of the sensor assembly 2 is best when w >35 °.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements that have been described above and shown in the drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (10)
1. A light guide structure is characterized by comprising a light guide column and a shading unit;
the light guide column comprises a first incidence surface, the first incidence surface is formed on the peripheral side wall of the light guide column, and the shading unit is arranged on the first incidence surface to prevent light incident to the first incidence surface from entering the light guide column.
2. The light guide structure of claim 1, wherein the light blocking unit comprises a black paint layer.
3. The light guide structure of claim 1, wherein the light guide pillar comprises a light guide body, and the first incident surface is formed on the light guide body;
the light guide column further comprises a second incidence surface, the second incidence surface is formed at the free end part of the light guide body, and light outside the light guide structure enters the light guide body through the second incidence surface;
the light guide column further comprises a light-emitting surface, the light-emitting surface is formed at the fixed end part of the light guide body, and light incident into the light guide body is guided out of the light guide body through the light-emitting surface.
4. The light guide structure of claim 3, further comprising a scattering unit disposed on the second incident surface, the scattering unit configured to scatter light incident on the second incident surface.
5. The light guide structure of claim 3, wherein the light guide pillar further comprises a light guide base, the light guide base is fixedly connected with the fixed end of the light guide body, and light guided out from the light exit surface enters the light guide base.
6. The light guide structure of claim 3, further comprising a frosted structure formed on a peripheral sidewall of the light guide body, wherein the light shading unit is disposed on a surface of the frosted structure away from the light guide body;
the frosted structure is used for forming diffuse reflection on light incident into the light guide body.
7. The light guide structure according to claim 3, further comprising a frosted layer disposed on a peripheral sidewall of the light guide body, wherein the frosted layer is disposed between the light guide body and the light shielding unit.
8. A terminal device, characterized in that the terminal device comprises a sensor assembly and a light guiding structure according to any of claims 1-7, the sensor assembly being connected to the light guiding structure;
in the mounted state, light outside the terminal device propagates to the sensor assembly through the light guide structure.
9. The terminal device according to claim 8, further comprising a housing, and a glass cover plate mounted on the housing, wherein an accommodating space is provided between the housing and the glass cover plate;
the light guide body of the light guide structure is arranged in the glass cover plate, and the light guide base of the light guide structure is arranged in the accommodating space; the sensor assembly is arranged on one side of the light guide base far away from the light guide body.
10. The terminal device of claim 9, further comprising a display screen, wherein the glass cover plate covers the display screen to limit movement of the display screen relative to the housing.
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| CN202110344435.8A CN115144948B (en) | 2021-03-29 | 2021-03-29 | Light guide structure and terminal equipment thereof |
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| CN202110344435.8A CN115144948B (en) | 2021-03-29 | 2021-03-29 | Light guide structure and terminal equipment thereof |
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| CN115144948A true CN115144948A (en) | 2022-10-04 |
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| CN110068886A (en) * | 2019-04-30 | 2019-07-30 | 华为技术有限公司 | A kind of light-guiding pillar mould group, terminal device |
| CN209819281U (en) * | 2019-05-28 | 2019-12-20 | 深圳和而泰智能控制股份有限公司 | Decorative lighting lamp |
| CN112462551A (en) * | 2020-12-04 | 2021-03-09 | 广东湾区智能终端工业设计研究院有限公司 | Light leakage prevention whole machine frame structure and terminal equipment |
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