Electronic device

Abstract

The utility model discloses electronic equipment, and belongs to the technical field of electronic equipment. The electronic equipment comprises a shell, and the shell comprises a first optical window and a second optical window; the light-emitting module is arranged opposite to the first optical window, and the light-emitting module emits first light to the outer side of the shell through the first optical window; the receiving module and the light-emitting module are arranged on the same side of the shell, the receiving module and the second optical window are oppositely arranged, the receiving module is used for outputting an electric signal based on received second light, and the second light is reflected after the first light is emitted through the first optical window; wherein at least part of the light-emitting surface of the light-emitting module is located in a projection area of the first optical window on the light-emitting surface, and / or at least part of the receiving surface of the receiving module is located in a projection area of the second optical window on the receiving surface.

Description

Technical Field

[0001] The present application belongs to the technical field of electronic equipment, and specifically relates to an electronic equipment. Background Art

[0002] The mainstream technology for smart wearable devices to achieve health monitoring is PPG (photoplethysmographic). PPG needs to emit a light beam of a certain wavelength to the skin, which is then received by a photoelectric receiver through transmission or reflection. The periodic light intensity changes caused by blood circulation detected in this process are processed and displayed to generate pulse data and blood oxygen values.

[0003] In the related art, due to the space and size limitations of smart wearable devices, the size of the opening in front of the photoelectric receiver is relatively small, so that the light output area of ​​the photoelectric receiver is forced to decrease, and the optical path performance is reduced accordingly.

[0004] The reduction in light output area and the degradation in optical path performance will affect the accuracy of health data detection, resulting in a large deviation between health data and the user's actual health level, so that electronic equipment has technical problems of poor practicality and reliability. Utility Model Content

[0005] The present application aims to provide an electronic device that at least solves the problem of a large deviation between the health data detected by a smart wearable device and the actual health level of the user.

[0006] In order to solve the above technical problems, this application is implemented as follows:

[0007] An embodiment of the present application proposes an electronic device, which includes: a shell, the shell including a first optical window and a second optical window; a light-emitting module, arranged opposite to the first optical window, and emitting a first light to the outside of the shell through the first optical window; a receiving module, which is arranged on the same side of the shell as the light-emitting module and opposite to the second optical window, and is used to output an electrical signal based on a received second light, wherein the second light is the light reflected after the first light is emitted through the first optical window; wherein at least a portion of the light-emitting surface of the light-emitting module is located within a projection area of ​​the first optical window on the light-emitting surface, and / or at least a portion of the receiving surface of the receiving module is located within a projection area of ​​the second optical window on the receiving surface.

[0008] In an embodiment of the present application, a light emitting module and a receiving module are arranged on the inner side of a housing, and a first optical window and a second optical window are provided on the housing, the first optical window is arranged opposite to the light emitting surface on the light emitting module, and the second optical window is arranged opposite to the receiving surface on the receiving module. The light emitting module can emit a first light to the outside of the housing through the light emitting surface and the first optical window during operation, and the first light forms a second light through transmission or reflection after contacting the user's skin. The receiving module is arranged in the housing, and the side of the receiving module facing the second optical window includes a receiving surface, and the receiving surface can capture the light transmitted thereto. Specifically, the receiving surface is arranged opposite to the second optical window on the housing, and the first light emitted by the light emitting module is converted into the second light and then emitted to the receiving surface through the second optical window, and then the receiving module can generate a corresponding electrical signal through the second light captured by the receiving surface, and determine the pulse data and blood oxygen data that can reflect the health of the user through the electrical signal.

[0009] The size of the second optical window is greater than the corresponding size of the receiving surface in at least one direction. The receiving surface is used as a reference, and the second optical window is projected onto the receiving surface to form a projection area of ​​the second optical window on the receiving surface. The size of the projection area of ​​the second optical window can reflect the size of the second optical window, and the overlapping relationship between the projection area of ​​the second optical window and the receiving surface can reflect the size relationship between the size of the second optical window and the size of the receiving surface.

[0010] On this basis, at least part of the receiving surface of the receiving module is located within the projection area of ​​the second optical window on the receiving surface, that is, the projection area of ​​the second optical window at least partially exceeds the edge of the receiving surface, and the corresponding second optical window at least partially extends to the peripheral side of the receiving surface. Compared with the opening in the aforementioned related art, extending the projection area of ​​the second optical window to the outside of the receiving surface is equivalent to expanding the size of the second optical window, so that the receiving surface can receive the second light through the expanded second optical window.

[0011] Without changing the distance between the second optical window and the receiving surface, expanding the size of the second optical window can increase the effective light-emitting area of ​​the receiving module, so that the receiving surface can capture more second light. At the same time, expanding the size of the second optical window can also reduce the shielding of the second light by the shell, thereby optimizing the optical path performance of the receiving module, so as to improve the accuracy and effectiveness of the health data detected by the receiving module and reduce the error between the detection results and the actual health status of the user.

[0012] This solves the technical problems of poor reliability and practicality in related technologies, thereby achieving the technical effects of optimizing the structure of electronic equipment, improving the detection accuracy of electronic equipment, and improving user experience.

[0013] Specifically, the size of the first optical window is greater than the corresponding size of the light-emitting surface in at least one direction. Wherein, taking the light-emitting surface as a reference, the first optical window is orthographically projected onto the light-emitting surface to form a projection area of ​​the first optical window on the light-emitting surface, the size of the projection area of ​​the first optical window can reflect the size of the first optical window, and the overlapping relationship between the projection area of ​​the first optical window and the light-emitting surface can reflect the size relationship between the size of the first optical window and the size of the light-emitting surface.

[0014] On this basis, at least part of the light-emitting surface of the light-emitting module is located within the projection area of ​​the first optical window on the light-emitting surface, that is, the projection area of ​​the first optical window at least partially exceeds the edge of the light-emitting surface, and the corresponding first optical window at least partially extends to the peripheral side of the light-emitting surface. Extending the projection area of ​​the first optical window to the outside of the light-emitting surface is equivalent to expanding the size of the first optical window, so that the light-emitting surface can emit more first light to the outside of the shell through the expanded first optical window.

[0015] Without changing the distance between the first optical window and the light-emitting surface, expanding the size of the first optical window can increase the effective light-emitting area of ​​the light-emitting module, so that the light-emitting surface can emit more first light to the outside of the shell, thereby indirectly increasing the intensity of the second light received by the receiving module. At the same time, expanding the size of the first optical window can also reduce the shielding of the first light by the shell, thereby optimizing the optical path performance of the light-emitting module, so as to improve the accuracy and effectiveness of the health data detected by the light-emitting module and reduce the error between the detection results and the actual health status of the user.

[0016] Thereby solving the technical problems of poor reliability and practicality existing in the related technologies. Then achieving the technical effects of optimizing the structure of electronic equipment, improving the detection accuracy of electronic equipment, and improving the user experience. Additional aspects and advantages of the present application will be partially given in the following description, and some will become obvious from the following description, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

[0019] Figure 2 is a projection diagram of an electronic device according to an embodiment of the present application;

[0020] Figure 3 It is a schematic diagram of the structure of an electronic device according to an embodiment of the present application.

[0021] Reference numerals:

[0022] 100 electronic device, 110 housing, 1102 second optical window, 1104 first optical window, 120 light emitting module, 1202 light emitting surface, 130 receiving module, 1302 receiving surface, 1304 projection area of ​​the first optical window, 1306 projection area of ​​the second optical window, 1308 first area, 140 second lens, 1402 first surface, 1404 Fresnel pattern, 1406 second area, 150 circuit board, 160 first lens, 170 shading member. DETAILED DESCRIPTION

[0023] The embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0024] The term "first" or "second" in the specification and claims of this application may include one or more of the features explicitly or implicitly. In the description of this application, unless otherwise specified, "plurality" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0025] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0026] Combine the following Figures 1 to 3 An electronic device 100 according to an embodiment of the present application is described.

[0027] like Figure 1 , Figure 2 and Figure 3As shown, according to the shell 110 of some embodiments of the present application, the shell 110 includes a first optical window 1104 and a second optical window 1102; a light-emitting module 120 is arranged opposite to the first optical window 1104, and the light-emitting module 120 emits a first light to the outside of the shell 110 through the first optical window 1104; a receiving module 130 is arranged on the same side of the shell 110 as the light-emitting module 120, and is arranged opposite to the second optical window 1102, and is used to output an electrical signal based on a received second light, and the second light is the light after the first light is emitted through the first optical window 1104 and is reflected; wherein, at least a portion of the light-emitting surface 1202 of the light-emitting module 120 is located within the projection area of ​​the first optical window 1104 on the light-emitting surface 1202, and / or, at least a portion of the receiving surface 1302 of the receiving module 130 is located within the projection area of ​​the second optical window 1102 on the receiving surface 1302.

[0028] in, Figure 1 A schematic structural diagram of an electronic device 100 according to an embodiment of the present application is shown.

[0029] Figure 2 A projection diagram of an electronic device 100 according to an embodiment of the application is shown.

[0030] Figure 3 A schematic structural diagram of an electronic device 100 according to an embodiment of the present application is shown.

[0031] In the embodiment of the present application, the light emitting module 120 and the receiving module 130 are arranged inside the housing 110, and the housing 110 is provided with a first optical window 1104 and a second optical window 1102, the first optical window 1104 is arranged opposite to the light emitting surface 1202 on the light emitting module 120, and the second optical window 1102 is arranged opposite to the receiving surface 1302 on the receiving module 130. The light emitting module 120 can emit a first light to the outside of the housing 110 through the light emitting surface 1202 and the first optical window 1104 during operation, and the first light is transmitted or reflected to form a second light after contacting the user's skin. The receiving module 130 is disposed in the shell 110. The side of the receiving module 130 facing the second optical window 1102 includes a receiving surface 1302. The receiving surface 1302 can capture the light transmitted thereto. Specifically, the receiving surface 1302 is arranged opposite to the second optical window 1102 on the shell 110. After the first light emitted by the light-emitting module 120 is converted into the second light, it is emitted toward the receiving surface 1302 through the second optical window 1102. Then, the receiving module 130 can generate a corresponding electrical signal through the second light captured by the receiving surface 1302, and determine the pulse data and blood oxygen data that can reflect the health of the user through the electrical signal.

[0032] The size of the second optical window 1102 is greater than the corresponding size of the receiving surface 1302 in at least one direction. Taking the receiving surface 1302 as a reference, the second optical window 1102 is orthographically projected onto the receiving surface 1302 to form a projection area 1306 of the second optical window on the receiving surface 1302. The size of the projection area 1306 of the second optical window can reflect the size of the second optical window 1102. The overlapping relationship between the projection area 1306 of the second optical window and the receiving surface 1302 can reflect the size relationship between the size of the second optical window 1102 and the size of the receiving surface 1302.

[0033] On this basis, at least part of the receiving surface 1302 of the receiving module 130 is located within the projection area of ​​the second optical window 1102 on the receiving surface 1302, that is, the projection area 1306 of the second optical window at least partially exceeds the edge of the receiving surface 1302, corresponding to the second optical window 1102 at least partially extending to the peripheral side of the receiving surface 1302. Compared with the opening in the aforementioned related art, extending the projection area 1306 of the second optical window to the outside of the receiving surface 1302 is equivalent to expanding the size of the second optical window 1102, so that the receiving surface 1302 can receive the second light through the expanded second optical window 1102.

[0034] Without changing the distance between the second optical window 1102 and the receiving surface 1302, expanding the size of the second optical window 1102 can increase the effective light-emitting area of ​​the receiving module 130, so that the receiving surface 1302 can capture more second light. At the same time, expanding the size of the second optical window 1102 can also reduce the obstruction of the second light by the shell 110, thereby optimizing the optical path performance of the receiving module 130, so as to improve the accuracy and effectiveness of the health data detected by the receiving module 130 and reduce the error between the detection results and the actual health status of the user.

[0035] This solves the technical problems of poor reliability and practicability in the related technologies, thereby achieving the technical effects of optimizing the structure of the electronic device 100, improving the detection accuracy of the electronic device 100, and improving the user experience.

[0036] Specifically, the size of the first optical window 1104 is greater than the corresponding size of the light emitting surface 1202 in at least one direction. Taking the light emitting surface 1202 as a reference, the first optical window 1104 is orthographically projected onto the light emitting surface 1202 to form a projection area 1304 of the first optical window on the light emitting surface 1202. The size of the projection area 1304 of the first optical window can reflect the size of the first optical window 1104. The overlapping relationship between the projection area 1304 of the first optical window and the light emitting surface 1202 can reflect the size relationship between the size of the first optical window 1104 and the size of the light emitting surface 1202.

[0037] On this basis, at least part of the light-emitting surface 1202 of the light-emitting module 120 is located within the projection area of ​​the first optical window 1104 on the light-emitting surface 1202, that is, the projection area 1304 of the first optical window at least partially exceeds the edge of the light-emitting surface 1202, and the corresponding first optical window 1104 at least partially extends to the peripheral side of the light-emitting surface 1202. Extending the projection area 1304 of the first optical window to the outside of the light-emitting surface 1202 is equivalent to expanding the size of the first optical window 1104, so that the light-emitting surface 1202 can emit more first light to the outside of the shell 110 through the expanded first optical window 1104.

[0038] Without changing the distance between the first optical window 1104 and the light-emitting surface 1202, expanding the size of the first optical window 1104 can increase the effective light-emitting area of ​​the light-emitting module 120, so that the light-emitting surface 1202 can emit more first light to the outside of the shell 110, so as to indirectly increase the intensity of the second light received by the receiving module 130. At the same time, expanding the size of the first optical window 1104 can also reduce the shielding of the first light by the shell 110, thereby optimizing the optical path performance of the light-emitting module 120, so as to improve the accuracy and effectiveness of the health data detected by the light-emitting module 120, and reduce the error between the detection results and the actual health status of the user.

[0039] This solves the technical problems of poor reliability and practicability in the related technologies, thereby achieving the technical effects of optimizing the structure of the electronic device 100, improving the detection accuracy of the electronic device 100, and improving the user experience.

[0040] like Figure 2 As shown, in some embodiments, optionally, the receiving surface 1302 is located within a projection area of ​​the second optical window 1102 on the receiving surface 1302 .

[0041] In this embodiment, the receiving surface 1302 is entirely located within the projection area 1306 of the second optical window, that is, the projection area 1306 of the second optical window covers the entire receiving surface 1302, and the projection area 1306 of the second optical window expands outward at all angles relative to the receiving surface 1302.

[0042] By providing a second optical window 1102 that expands outward at all angles relative to the receiving surface 1302 , the light emission angle corresponding to the receiving surface 1302 can be increased at all angles, thereby avoiding the occurrence of a second light receiving dead angle around the receiving surface 1302 .

[0043] At the same time, when the electronic device 100 detects the user's health data in different postures, or when the user wears the electronic device 100 in different positions, the main incident angle of the second light changes accordingly. By setting a second optical window 1102 that expands at all angles, the electronic device 100 can provide accurate and reliable detection results in different postures and different positions, thereby achieving the technical effect of improving the practicality and reliability of the electronic device 100.

[0044] like Figure 2 As shown, in some embodiments, optionally, the distance between the edge of the projection area of ​​the second optical window 1102 on the receiving surface 1302 and the edge of the inner receiving surface 1302 is a first spacing.

[0045] in, Figure 2 L3 shows the first spacing.

[0046] In this embodiment, the distance between the edge of the projection area 1306 of the second optical window on the receiving surface 1302 and the edge of the receiving surface 1302 inside the projection area 1306 of the second optical window is a first spacing, and the first spacing reflects the outward expansion size of the projection area relative to the receiving surface 1302. The larger the first spacing is, the larger the outward expansion amplitude of the second optical window 1102 is, and the smaller the first spacing is, the smaller the outward expansion amplitude of the second optical window 1102 relative to the receiving surface 1302 is.

[0047] On this basis, the first spacing needs to be greater than or equal to 1mm and less than or equal to 5mm. By limiting the first spacing to be greater than or equal to 1mm, it can be ensured that the light output angle of the receiving module 130 is effectively improved, the optical path performance is substantially optimized, and the detection accuracy of the receiving module 130 for health data can meet user needs. By limiting the first spacing to be less than or equal to 5mm, the size of the second optical window 1102 can be limited on the basis of meeting the health data detection accuracy requirements. On the one hand, it is avoided that the oversized second optical window 1102 destroys the structural strength and inherent structural layout of the shell 110. On the other hand, it is avoided that the oversized second optical window 1102 exposes the working structure inside the shell 110, thereby improving the consistency of the exposed surface of the electronic device 100.

[0048] like Figure 2As shown, in some embodiments, optionally, the housing 110 and the first lens 160 of this solution are formed by two-color injection molding. The housing 110 extends between the LED (light-emitting diode) and the PD (Photo Diode) to block the light, and the smaller gap between the housing 110 and the PCB (Printed Circuit Board) 150 can be shielded by thinner light-shielding foam, which reduces the cost of the light-shielding foam and improves the reliability of light-shielding. Among them, LED is the light-emitting module 120, PD is the receiving module 130, and PCB is the circuit board 150.

[0049] The diameter of the second optical window 1102 of the first lens 160 is greater than the length of the receiving surface 1302 of the receiving module 130, which can greatly improve the light extraction efficiency and enhance the optical path performance. In this embodiment, the length of the receiving surface 1302 is 3mm, the diameter of the second optical window 1102 can be 4mm, and the area can reach 12.56mm2. In the related art, the maximum window diameter can only be 3mm, and the area is only 7mm2. In this way, compared with the related art, the effective light extraction area of ​​this application is increased by about 80%. The optical path performance can be improved.

[0050] like Figure 2 As shown, in some embodiments, optionally, the second optical window 1102 is a circular hole, and the receiving surface 1302 is rectangular; the diameter of the circular hole is greater than the length of the receiving surface 1302, and / or the diameter of the circular hole is greater than the width of the receiving surface 1302.

[0051] in, Figure 2 R shows the diameter of the circular hole, L1 shows the width of the receiving surface 1302 , and L2 shows the length of the receiving surface 1302 .

[0052] In this embodiment, the second optical window 1102 is a circular hole, and the orthographic projection of the second optical window 1102 on the receiving surface 1302 corresponds to a circle. The receiving surface 1302 is rectangular, and the center of the receiving surface 1302 is located on the axis of the circular hole, so that the second optical window 1102 is arranged opposite to the receiving surface 1302.

[0053] On this basis, the circular projection area 1306 of the second optical window covers the rectangular receiving surface 1302, the diameter of the projection area is greater than the length of the receiving surface 1302, and / or the diameter of the projection area 1306 of the second optical window is greater than the width of the receiving surface 1302.

[0054] When the diameter of the projection area 1306 of the second optical window is greater than one of the length and width of the receiving surface 1302, the projection area 1306 of the second optical window extends to the outside of the receiving surface 1302 in the corresponding length direction or width direction to improve the light output angle in the corresponding direction and optimize the optical path performance in the corresponding direction. The extension direction corresponds to the position of the light emitting module 120. For example, when the light emitting modules 120 are arranged at intervals along the length direction of the receiving surface 1302, a second optical window 1102 having a diameter greater than the length of the receiving surface 1302 can be provided to ensure that the receiving surface 1302 can capture more second light.

[0055] When the diameter of the projection area 1306 of the second optical window is greater than the width and length of the receiving surface 1302, there is a projection area 1306 of the second optical window extending all around the receiving surface 1302. At this time, the second optical window 1102 can increase the light output angle from the front, back, left and right directions of the receiving surface 1302 and optimize the optical path performance.

[0056] When the diameter of the projection area 1306 of the second optical window is greater than the diagonal length of the receiving surface 1302, the projection area 1306 of the second optical window extends in all directions outside the receiving surface 1302, thereby realizing full-angle expansion of the second optical window 1102 to eliminate the receiving blind spot of the receiving surface 1302 and meet the high-precision detection requirements of the electronic device 100 at multiple angles and multiple postures.

[0057] like Figure 1 and Figure 3 As shown, in some embodiments, optionally, the electronic device 100 also includes: a first lens 160, which is arranged in the first optical window 1104, and the first lens 160 is used to converge the first light emitted by the light-emitting surface 1202 to the outside of the shell 110; a second lens 140, which is arranged in the second optical window 1102, and the second lens 140 is used to converge the second light to the receiving surface 1302.

[0058] In this technical solution, a second lens 140 is installed in the second optical window 1102 . The second lens 140 is embedded inside the second optical window 1102 , and the outer contour shape of the second lens 140 is adapted to the shape of the second optical window 1102 .

[0059] Among them, the second lens 140 can change the transmission direction of the second light by refraction, so that the second light that would originally be blocked by the inner wall of the second optical window 1102 is deflected toward the direction where the receiving surface 1302 is located below, so as to converge the second light to the receiving surface 1302, thereby cooperating with the outward-expanded second optical window 1102 to increase the light output angle of the receiving module 130, and at the same time cooperating with the outward-expanded second optical window 1102 to optimize the optical path performance of the receiving module 130, and then by capturing more second light, the accuracy of the health data detected by the receiving module 130 is improved, thereby achieving the technical effect of improving the practicality and reliability of the electronic device 100.

[0060] In this technical solution, the housing 110 is further provided with a first optical window 1104, which is arranged side by side with the second optical window 1102 on the housing 110. Specifically, the light emitting module 120 on the inner side of the housing 110 is arranged opposite to the first optical window 1104, and the light emitting module 120 can emit a first light to the outer side of the housing 110 through the first optical window 1104.

[0061] On this basis, a first lens 160 is installed in the first optical window 1104 , and the outer contour shape of the first lens 160 is adapted to the shape of the first optical window 1104 , so that the first lens 160 can be embedded inside the first optical window 1104 .

[0062] The first light emitted by the light-emitting module 120 can be refracted by the first lens 160 after contacting the first lens 160. Under the effect of this refraction, the light path that would originally be blocked by the inner wall of the first optical window 1104 is deflected toward the center of the first optical window 1104, so that the first light emitted by the light-emitting module 120 is converged toward the center of the first optical window 1104 through the first lens 160, so as to improve the intensity of the first light emitted by the light-emitting module 120, thereby improving the detection accuracy of health data and improving the practicality and reliability of the electronic device 100.

[0063] like Figure 1 and Figure 3 As shown, in some embodiments, optionally, the second lens 140 has a first surface 1402 on the side facing the receiving surface 1302, and the first surface 1402 is provided with Fresnel patterns 1404, and the Fresnel patterns 1404 are spaced apart from the receiving surface 1302; the second optical window 1102 is in the projection area of ​​the receiving surface 1302, and the portion located outside the receiving surface 1302 is the first area 1308, and the Fresnel patterns 1404 at least block the first area 1308 between the second optical window 1102 and the receiving surface 1302.

[0064] In this embodiment, the side of the second lens 140 facing the receiving surface 1302 includes a first surface 1402 , which corresponds to the emission side of the second lens 140 . After passing through the second lens 140 , the second light is emitted from the first surface 1402 toward the receiving module 130 .

[0065] On this basis, Fresnel lines 1404 are provided on the first surface 1402, and the Fresnel lines 1404 can play a role of collimation / divergence on the optical path. Among them, on the receiving surface 1302, the partial projection area extending to the outside of the receiving surface 1302 is the first area 1308. In the case where the Fresnel lines 1404 are not provided, the user can observe the receiving module 130 in the first area 1308 through the second optical window 1102. The receiving module 130 includes dense circuit structures and electrical components. Exposing the dense circuit structures and electrical components will affect the integrity of the external surface of the electronic device 100 and destroy the user's experience.

[0066] In this regard, the Fresnel patterns 1404 are at least arranged opposite to the first area 1308, so that the Fresnel patterns 1404 block the first area 1308 between the receiving surface 1302 and the second optical window 1102 through the divergent effect, thereby preventing the user from observing the receiving module 130 in the first area 1308 through the second optical window 1102, thereby eliminating the adverse effects of the outward expansion of the second optical window 1102, and thereby achieving the technical effect of optimizing the structure of the electronic device 100 and improving the practicality of the electronic device 100 and the user experience.

[0067] Specifically, due to the special structure of the Fresnel lines 1404, when there is a certain distance between the receiving module 130 and the Fresnel lines 1404, the receiving module 130 in the corresponding area cannot be seen through the Fresnel lines 1404. In this way, the Fresnel lines 1404 can effectively block the shape of the non-receiving surface 1302 of the receiving module 130.

[0068] Fresnel pattern 1404 can improve the accuracy of PPG measurement, and can also beautify the appearance and enhance the technological sense of the product.

[0069] like Figure 1 and Figure 3 As shown, in some embodiments, on the first surface, the area opposite to the receiving surface 1302 is the second area 1406 , and the Fresnel patterns 1404 avoid the second area 1406 .

[0070] In this embodiment, a portion of the first surface 1402 directly facing the receiving surface 1302 is the second area 1406 . Under the convergence effect of the second lens 140 , the second light emitted from the first surface 1402 can be smoothly transmitted to the receiving surface 1302 .

[0071] On this basis, the Fresnel lines 1404 on the first surface 1402 are arranged to avoid the second area 1406. The circuit structure and electrical components around the receiving surface 1302 will not be exposed to the second optical window 1102 through the second area 1406. By distributing the Fresnel lines 1404 around the second area 1406, the adverse effect of the Fresnel lines 1404 on the optical path of the second light can be reduced on the basis of avoiding excessive exposure of the receiving module 130, and the loss of the second light by the Fresnel lines 1404 can be reduced, thereby achieving the technical effect of improving the detection accuracy of the receiving module 130 and improving the reliability of the electronic device 100.

[0072] like Figure 1 and Figure 3 As shown, in some embodiments, the cross-sectional area of ​​the second lens 140 increases in the direction from the second optical window 1102 to the receiving surface 1302 .

[0073] In this technical solution, in the direction from the second optical window 1102 to the receiving surface 1302, the second lens 140 expands outward relative to the second optical window 1102, thereby forming a second lens 140 with a gradually increasing cross-sectional area from top to bottom.

[0074] Among them, the light path corresponding to the edge of the receiving surface 1302 ( Figure 3 The light beam (indicated by the arrow b) will be blocked by the inner wall of the second optical window 1102, resulting in a reduced light output angle of the receiving surface 1302. In this regard, the second lens 140 is arranged to expand outward in the direction close to the receiving surface 1302, so that the edge of the second lens 140 can extend to the optical path corresponding to the edge of the receiving surface 1302. The second lens 140 can refract the light, thereby changing the direction of the optical path, so that the optical path originally blocked by the inner wall of the second optical window 1102 can be deflected toward the center of the second optical window 1102 ( Figure 3 The middle arrow c shows the direction of the light path after refraction, and the light path is deflected toward the light path shown by arrow a after refraction), thereby widening the light output angle of the receiving surface 1302 (the specific enlarged light output angle is the angle between arrow a and arrow c), and increasing the amount of second light captured by the receiving surface 1302, thereby achieving the technical effect of improving the detection accuracy of the receiving module 130 and improving the reliability of the electronic device 100.

[0075] like Figure 1 and Figure 3 As shown, in some embodiments, the electronic device 100 further includes: a circuit board 150 , which is disposed on the same side of the housing 110 as the light emitting module 120 and the receiving module 130 , and the light emitting module 120 and the receiving module 130 are connected to the circuit board 150 .

[0076] In this technical solution, the electronic device 100 further includes a circuit board 150, which is disposed inside the housing 110, and the receiving module 130 and the light emitting module 120 are mounted on a side of the circuit board 150 facing the second optical window 1102. The circuit board 150 can provide positioning and support for the receiving module 130 and the light emitting module 120, and can also provide power for the light emitting module 120 and the receiving module 130.

[0077] The circuit board 150 may determine the corresponding health data by receiving the electrical signal generated by the module 130 , and then feed back the detection result to the user by controlling the display screen of the electronic device 100 to display the health data.

[0078] The circuit board 150 can also control the light emitting module 120 to emit the first light out of the housing 110 based on the detection instruction.

[0079] like Figure 1 and Figure 3 As shown, in some embodiments, the electronic device 100 also includes: a shading member 170, which is disposed on the side of the circuit board 150 facing the first optical window 1104 and the second optical window 1102, and the shading member 170 surrounds the light-emitting module 120 or the receiving module 130, and the shading member 170 avoids the first optical window 1104 and the second optical window 1102.

[0080] In this technical solution, the side of the circuit board 150 facing the second optical window 1102 and the first optical window 1104 is covered with a shading member 170. Specifically, the shading member 170 avoids the light-emitting module 120 and the receiving module 130 on the circuit board 150 and covers the circuit board 150 around the light-emitting module 120 and the receiving module 130.

[0081] By setting the shading member 170, the measurement of the area around the receiving module 130 and the light emitting module 120 can be reduced in the second optical window 1102 and the first optical window 1104, and the recognition of the area can be reduced, so that the user cannot observe the structure other than the light emitting module 120 and the receiving module 130 through the second optical window 1102 and the first optical window 1104, thereby improving the consistency of the exposed surface of the electronic device 100. On this basis, by setting the shading member 170 away from the light emitting module 120 and the receiving module 130, it can be avoided that the shading member 170 affects the emission of the first light and the incidence of the second light, ensuring that the electronic device 100 has an accurate and reliable health data detection function.

[0082] The electronic device 100 may be a terminal or other device other than a terminal. For example, the electronic device 100 may be a mobile phone, a tablet computer, a laptop computer, a PDA, a vehicle-mounted electronic device 100, a mobile Internet device (MID), an augmented reality (AR) / virtual reality (VR) device, a robot, a wearable device, an ultra-mobile personal computer (UMPC), a netbook or a personal digital assistant (PDA), etc. It may also be a personal computer (PC), a television (TV), a teller machine or a self-service machine, etc., which is not specifically limited in the embodiments of the present application.

[0083] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0084] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. An electronic device, characterized in that: include: A housing, the housing comprising a first optical window and a second optical window; a light emitting module, arranged opposite to the first optical window, and emitting a first light to the outside of the housing through the first optical window; a receiving module, which is disposed on the same side of the housing as the light emitting module and is disposed opposite to the second optical window, and is used to output an electrical signal based on a received second light, where the second light is the light reflected after the first light is emitted through the first optical window; Among them, at least part of the light-emitting surface of the light-emitting module is located within the projection area of ​​the first optical window on the light-emitting surface, and / or at least part of the receiving surface of the receiving module is located within the projection area of ​​the second optical window on the receiving surface.

2. The electronic device according to claim 1, characterized in that: The receiving surface is located within the projection area of ​​the second optical window on the receiving surface.

3. The electronic device according to claim 1, characterized in that: The distance between the edge of the projection area of ​​the receiving surface and the inner edge of the receiving surface of the second optical window is a first spacing.

4. The electronic device according to claim 3, characterized in that: The second optical window is a circular hole, and the receiving surface is rectangular; The diameter of the circular hole is greater than the length of the receiving surface, and / or the diameter of the circular hole is greater than the width of the receiving surface.

5. The electronic device according to claim 1, characterized in that: Also includes: A first lens is disposed in the first optical window, and is used to converge the first light emitted by the light-emitting surface to the outside of the housing; The second lens is arranged in the second optical window, and is used for converging the second light to the receiving surface.

6. The electronic device according to claim 5, characterized in that: The second lens has a first surface on a side facing the receiving surface, the first surface is provided with Fresnel patterns, and the Fresnel patterns are spaced apart from the receiving surface; In the projection area of ​​the second optical window on the receiving surface, the portion outside the receiving surface is a first area, and the Fresnel patterns at least block the first area between the second optical window and the receiving surface.

7. The electronic device according to claim 6, characterized in that: On the first surface, an area opposite to the receiving surface is a second area, and the Fresnel patterns avoid the second area.

8. The electronic device according to claim 5, characterized in that: In the direction from the second optical window to the receiving surface, the cross-sectional area of ​​the second lens increases.

9. The electronic device according to any one of claims 1 to 8, characterized in that: Also includes: A circuit board is arranged on the same side of the housing as the light emitting module and the receiving module, and the light emitting module and the receiving module are connected to the circuit board.

10. The electronic device according to claim 9, characterized in that: Also includes: A shading member is arranged on a side of the circuit board facing the first optical window and the second optical window, and the shading member surrounds the light-emitting module or the receiving module, and the shading member avoids the first optical window and the second optical window.

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