Electronic equipment with built-in optical signal receiving part
By using a light guide column group composed of multiple light guide columns in electronic equipment, the gap with a refractive index smaller than the light guide column can achieve total reflection of the light signal, which solves the problem of excessive space occupied by the light guide column and improves signal transmission efficiency and sensitivity.
Patent Information
- Application Number
- CN202421174174.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-28
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-05-28
AI Technical Summary
In the prior art, in order to ensure signal transmission efficiency when transmitting remote control signals, the light guide column takes up too much space, which limits the layout design of other components inside the electronic device. When the signal receiver fails to face the remote control window, the light is easy. Spillover results in low sensitivity.
A light guide column group consisting of multiple light guide columns is set between the light guide columns with a gap less than the light guide column, and the ratio of the radius of curvature to the inner diameter is between 15-20, which realizes total reflection or transmission of incident light and reduces the attenuation of the light signal. Avoid taking up too much space.
It improves the utilization rate of optical signals, reduces the attenuation of optical signals, saves space inside electronic devices, provides greater structural design freedom, and improves the sensitivity of remote control reception.
Smart Images
Figure CN222337367U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of electronic device signal transmission, and in particular, relates to an electronic device with a built-in optical signal receiving component. Background Art
[0002] In the prior art, please refer to Figure 1 For an electronic device with infrared remote control signal reception, in order to ensure that the light 04 received by the signal receiving head 03 is not blocked by the shell, the signal receiving head 03 is required to protrude from the surface of the shell panel 01 or be very close to the remote control window 02 in order to receive incident light with a certain angle.
[0003] exist Figure 2 In the two cases shown, the space conditions do not allow the signal receiving head 03 to be arranged near the surface of the housing panel 01. Either the signal receiving head 03 is too far back or even fails to face the remote control window 02 on the housing panel 01. The infrared signal light 04 cannot effectively enter the electronic device at a larger incident angle and be received by the signal receiving head 03, so the remote control distance and angle are limited. The product performance is that the remote control fails, affecting the user experience.
[0004] In the prior art, a light guide column solution is proposed to solve the above problem. In order to receive more remote control optical signals, the cross-sectional area of the light guide column receiving light should be made larger, which leads to a larger overall cross-sectional area of the light guide column. When the signal receiving head 03 is not directly facing the remote control window 02, in order to adapt to the position of the remote control window 02 and the receiving head 03, the curvature radius of the light guide column will become smaller, such as Figure 3 When the incident light 04 at a certain angle A enters the inner wall of the light guide column, it will continue to reflect multiple times. When passing through certain positions with a small curvature radius, total reflection cannot be achieved because the light incident angle is less than the critical angle of total reflection. There is overflow light 06 overflowing the light guide column, causing a large attenuation of the light, and the remote control receiving head receives less light, resulting in low sensitivity or even failure to work. Therefore, when using the existing light guide column to achieve total reflection and export light to match the remote control receiving head, the light guide column needs to have a larger curvature radius. The light guide column has a large bending radius and occupies more space inside the electronic device, which limits the layout design of other components inside the electronic device. Summary of the invention
[0005] The purpose of the present application is to overcome the deficiencies of the above-mentioned prior art and to provide an electronic device with a built-in optical signal receiving element, which can solve the problem that the existing light guide column occupies too much space in order to ensure the transmission efficiency of the remote control signal when transmitting the remote control signal.
[0006] In order to solve the above technical problems, on the one hand, the present application provides an electronic device with a built-in optical signal receiving element, characterized in that it includes a main body, an optical signal transmitting element, an optical signal transmission element, and an optical signal receiving element; the optical signal transmitting element is arranged on the outer wall of the main body, and a chamber is defined inside the main body, the optical signal transmission element and the optical signal receiving element are both arranged in the chamber, one end of the optical signal transmission element is optically connected to the optical signal transmitting element, and the other end is optically connected to the optical signal receiving element; wherein the optical signal transmission element is a light guide column group composed of a plurality of light guide columns, at least some of the light guide columns among the plurality of light guide columns have gaps with a refractive index less than the refractive index of the light guide columns, and the ratio of the radius of curvature of at least some of the light guide columns to their inner diameters can achieve total reflection of incident light or transmission of a smaller portion of the light.
[0007] Preferably, the area of one end of the light guide column group connected to the optical signal transmitting element for optical transmission is larger than the area of one end of the light guide column group connected to the optical signal receiving element for optical transmission.
[0008] In one embodiment, the area of one end of each light guide column in the light guide column group that is optically connected to the optical signal transmitting element is larger than the area of one end that is optically connected to the optical signal receiving element.
[0009] In one embodiment, the area of the light guide column group decreases uniformly from the end connected to the optical signal transmitting element for optical transmission to the end connected to the optical signal receiving element for optical transmission.
[0010] Preferably, the area of one end of the light guide column group and the optical signal transmitting element optically connected is not less than the area of the optical signal transmitting element, and the area of one end of the light guide column group and the optical signal receiving element optically connected is not less than the area of the optical signal receiving element.
[0011] Specifically, the optical signal transmitting member is a light-transmitting window arranged on the outer wall of the main body.
[0012] Preferably, there is a gap between each of the plurality of light guide pillars, the refractive index of which is smaller than that of the light guide pillar, and the bent light guide pillars formed by bending all the light guide pillars satisfy the total reflection of the incident light.
[0013] Specifically, the gaps between at least some of the light guiding pillars in the plurality of light guiding pillars are air gaps, or filling media whose refractive index is smaller than that of the light guiding pillars.
[0014] Specifically, the ratio of the curvature radius of the light guide column to its inner diameter is between 15-20.
[0015] The electronic device with a built-in optical signal receiving component provided by the present application can achieve total reflection of the incident light signal and improve the utilization rate of the light signal by configuring the optical signal transmission component as a light guide column group composed of multiple light guide columns, and at least some of the multiple light guide columns have gaps with a refractive index smaller than that of the light guide columns. Moreover, since the optical signal transmission component in the present application is a plurality of light guide columns, the effect of total reflection of the light signal can be achieved with a smaller curvature radius than that of a single light guide column, thereby avoiding occupying too much space inside the electronic device. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0017] Figure 1 It is a perspective view of the internal structure of an electronic device in an example of the prior art;
[0018] Figure 2 is a perspective view of the internal structure of an electronic device in another example of the prior art;
[0019] Figure 3 It is a schematic diagram of the light transmission line inside the light guide column of the prior art;
[0020] Figure 4 is a perspective view of an electronic device with a built-in optical signal receiving element in one embodiment of the present application;
[0021] Figure 5 It is a schematic diagram of the structure of a light guide column group in an embodiment of the present application. DETAILED DESCRIPTION
[0022] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0023] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0024] It should also be noted that the directional terms such as left, right, up and down in the embodiments of the present application are merely relative concepts or are based on the normal use status of the product, and should not be considered as restrictive.
[0025] Please refer to Figure 4 , which shows a perspective view of the internal structure of an electronic device 100 with a built-in optical signal receiving element in an embodiment of the present application, wherein the electronic device 100 includes a main body 11, an optical signal transmitting element 111, an optical signal transmission element 12, and an optical signal receiving element 13; the optical transmission element 111 is arranged on the outer wall of the main body 11, and a cavity is defined inside the main body 11, and the optical signal transmission element 12 and the optical signal receiving element 13 are both arranged in the cavity of the main body 11, and one end of the optical signal transmission element 12 is optically connected to the optical signal transmitting element 111, and the other end is optically connected to the optical signal receiving element 13, thereby realizing an optical communication connection between the remote control and the optical signal receiving element 13. In the present application, the optical signal transmission element 12 is a light guide column group composed of a plurality of light guide columns, and at least some of the light guide columns among the plurality of light guide columns have gaps with a refractive index less than that of the light guide columns, and the ratio of the radius of curvature of at least some of the light guide columns to their inner diameters can realize total reflection of the incident light or less partial transmission, thereby improving the transmission efficiency of the optical signal.
[0026] In one embodiment, the ratio of the radius of curvature of the light guide column to its inner diameter is between 15-20.
[0027] Preferably, there is a gap between each light guide column with a refractive index less than that of the light guide column, and the ratio of the radius of curvature of each light guide column to its inner diameter can achieve total reflection of the incident light, so that the light signal can be fully utilized, and there is no need to set a larger curvature radius to occupy too much space in order to meet the total reflection requirement when the inner diameter of the light guide column is larger. Therefore, the electronic device disclosed in the present application can achieve total reflection of the remote control light signal while saving internal space, thereby providing greater freedom in the design of the internal structure of the electronic device.
[0028] Specifically, after the remote control infrared light signal L1 is emitted from the remote control, it passes through the light signal transmission member 111 and enters into a plurality of light guide columns. A gap having a light refractive index smaller than that of the light guide columns is provided between the plurality of light guide columns, so that the following can be achieved: Figure 4 The light is totally reflected. Specifically, a medium with a light refractive index less than that of the light guide column can be arranged between the light guide columns, or some air gaps can be left between the light guide columns. It should be noted that the space occupied by the medium with a light refractive index less than that of the light guide column or the air gap should be small enough to avoid loss of optical signals entering therein.
[0029] In a preferred embodiment, the area of one end T1 of the light guide column group connected to the optical signal transmitting element 111 for optical transmission is larger than the area of one end T2 of the light guide column group connected to the optical signal receiving element 13 for optical transmission, so that the light guide column group can receive the optical signal L1 in a larger range and converge more to the optical signal receiving element 13. For example, the area of the end T1 of each light guiding column in the light guiding column group connected to the optical signal transmitting member 111 for optical transmission may be larger than the area of the end T2 of the light guiding column connected to the optical signal receiving member 13 for optical transmission. Alternatively, the area of some light guiding columns connected to the optical signal transmitting member 111 for optical transmission may be larger than the area of the end T2 of the light guiding column connected to the optical signal receiving member 13 for optical transmission, the area of some light guiding columns connected to the optical signal transmitting member 111 for optical transmission may be smaller than the area of the end T2 of the light guiding column connected to the optical signal receiving member 13 for optical transmission, and the area of some light guiding columns connected to the optical signal transmitting member 111 for optical transmission may be equal to the area of the end T2 of the light guiding column connected to the optical signal receiving member 13 for optical transmission. However, the final result is still that the area of the end T1 of the light guiding column group connected to the optical signal transmitting member 111 for optical transmission may be larger than the area of the end T2 of the light guiding column connected to the optical signal receiving member 13 for optical transmission.
[0030] In one embodiment, the area of the light guide column group decreases uniformly from the end connected to the optical signal transmitting element 111 for optical transmission to the end connected to the optical signal receiving element 13 for optical transmission.
[0031] Of course, in other embodiments, the area of the end T1 of the light guide column group connected to the optical signal transmitting element 111 for optical transmission may be equal to the area of the end T2 of the light guide column group connected to the optical signal receiving element 13 for optical transmission.
[0032] In one embodiment, the optical signal transmitting member 111 is a light-transmitting window disposed on the outer wall of the main body 11 .
[0033] Please refer to Figure 5 , which is a schematic diagram showing a combination of multiple thinner light guide columns 121 to form a light guide column group 12, where the remote control signal light L1 is incident from the end of the light guide column group T1, and the light L2 is emitted from the end of the light guide column group T2, and then enters the optical signal receiving element 13.
[0034] It should be noted that the electronic device with a built-in optical signal receiving element disclosed in the present application is particularly suitable for situations where the optical signal receiving element cannot be arranged directly below the optical signal transmitting element 111 due to the internal space arrangement of the electronic device.
[0035] The electronic device with a built-in optical signal receiving element provided in the present application transmits optical signals by setting up multiple light guide columns to form a light guide column group, thereby avoiding the problem in the prior art that when a thicker light guide column is used to transmit optical signals, a larger curvature radius needs to be set to occupy more space inside the electronic device.
[0036] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims
1. An electronic device with a built-in optical signal receiving element, characterized in that: It includes a main body, an optical signal transmission component, an optical signal transmission component, and an optical signal receiving component; the optical signal transmission component is arranged on the outer wall of the main body, the interior of the main body defines a chamber, the optical signal transmission component and the optical signal receiving component are both arranged in the chamber, one end of the optical signal transmission component is optically connected to the optical signal transmission component, and the other end is optically connected to the optical signal receiving component; wherein the optical signal transmission component is a light guide column group composed of a plurality of light guide columns, at least some of the light guide columns among the plurality of light guide columns have gaps with a refractive index less than that of the light guide columns, and the ratio of the radius of curvature of at least some of the light guide columns to their inner diameters can achieve total reflection of incident light or transmission of a smaller portion of light.
2. The electronic device with a built-in optical signal receiving element as claimed in claim 1, characterized in that: The area of one end of the light guide column group connected to the optical signal transmitting element for optical transmission is larger than the area of one end of the light guide column group connected to the optical signal receiving element for optical transmission.
3. The electronic device with a built-in optical signal receiving element as claimed in claim 2, characterized in that: The area of one end of each light guide column in the light guide column group connected to the light signal transmitting element for optical transmission is larger than the area of one end of each light guide column connected to the light signal receiving element for optical transmission.
4. The electronic device with a built-in optical signal receiving element as claimed in claim 2, characterized in that: The area of the light guide column group decreases uniformly from the end connected to the optical signal transmitting element for optical transmission to the end connected to the optical signal receiving element for optical transmission.
5. The electronic device with a built-in optical signal receiving element as claimed in claim 1, characterized in that: The area of one end of the light guide column group and the optical signal transmitting element optically connected is not less than the area of the optical signal transmitting element, and the area of one end of the light guide column group and the optical signal receiving element optically connected is not less than the area of the optical signal receiving element.
6. The electronic device with a built-in optical signal receiving element as claimed in claim 1, characterized in that: The optical signal transmission component is a light-transmitting window arranged on the outer wall of the main body.
7. The electronic device with a built-in optical signal receiving element as claimed in claim 1, characterized in that: There is a gap between each of the plurality of light guide pillars, the refractive index of which is smaller than that of the light guide pillar, and the bent light guide pillars formed by bending all the light guide pillars satisfy the total reflection of the incident light.
8. The electronic device with a built-in optical signal receiving element as claimed in claim 7, characterized in that: The gaps between at least some of the light guiding pillars in the plurality of light guiding pillars are air gaps or filling media whose refractive index is smaller than that of the light guiding pillars.
9. The electronic device with a built-in optical signal receiving element as claimed in claim 7, characterized in that: The ratio of the curvature radius of the light guide column to its inner diameter is between 15-20.