Electronic device

Abstract

The utility model discloses electronic equipment, and belongs to the technical field of detection, and the electronic equipment comprises a housing which comprises a first optical window and a second optical window; the light-emitting unit is arranged opposite to the first optical window and used for emitting light with the first wavelength; the receiving unit and the light emitting unit are arranged on the same side of the shell, and the receiving unit is arranged opposite to the second optical window and used for receiving the light of the second wavelength and outputting a first electric signal based on the received light of the second wavelength; the light conversion unit is arranged on the first optical window or the second optical window; wherein the light of the first wavelength is converted into the light of the second wavelength through the light conversion unit.

Description

Technical Field

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

[0002] In related technologies, such as Figure 1 As shown, the electronic device includes a housing 102', a light emitting unit 104', a receiving unit 106', a filter 108', a support 110' and a substrate 112', wherein the light emitting unit 104' and the receiving unit 106' are arranged on the substrate 112', and the housing 102' includes a first optical window 1022' and a second optical window 1024'.

[0003] Specifically, the desired path is that the light emitted by the light emitting unit 104' passes through the filter 108', is transmitted to the outside of the housing 102' through the first optical window 1022', is transmitted outside the housing 102', is transmitted to the inside of the housing 102' through the second optical window 1024', and is received by the receiving unit 106'.

[0004] However, since there is an air gap between the light emitting unit 104' and the receiving unit 106' and the housing 102', the air gap is caused by the manufacturing tolerance of the product, and therefore, it cannot be infinitely reduced. In the case of the existence of the air gap, a cross-light path will appear, forming a cross-light phenomenon, and the existence of the cross-light phenomenon will affect the accuracy of the electronic device.

[0005] The cross-light phenomenon is that a part of the light emitted by the light emitting unit 104 ′ will not be transmitted from the first optical window 1022 ′ to the outside of the housing 102 ′, but will be transmitted inside the housing 102 ′ and received by the receiving unit 106 ′. Utility Model Content

[0006] The present application aims to provide an electronic device, which at least solves one of the problems of light crosstalk in the electronic device due to the air gap between the light emitting unit, the receiving unit and the housing.

[0007] An embodiment of the present application proposes an electronic device, comprising: a shell, the shell comprising a first optical window and a second optical window; a light-emitting unit, arranged opposite to the first optical window, for emitting light of a first wavelength; a receiving unit, arranged on the same side of the shell as the light-emitting unit, arranged opposite to the second optical window, for receiving light of a second wavelength, and outputting a first electrical signal based on the received light of the second wavelength; a light conversion unit, arranged in the first optical window or the second optical window; wherein the light of the first wavelength is converted into light of the second wavelength by the light conversion unit.

[0008] In an embodiment of the present application, an electronic device is proposed. Specifically, the electronic device includes a shell, a light emitting unit, a receiving unit and a light conversion unit. The light emitting unit and the receiving unit are arranged on the same side of the shell, so that the light emitted by the light emitting unit can be transmitted to the other side of the shell through the first optical window on the shell, and irradiated into the shell again through the second optical window on the shell. In the above embodiment, the light emitting unit emits light with a wavelength of a first wavelength, and the light conversion unit can be used to convert the light with a wavelength of the first wavelength into light with a wavelength of a second wavelength, which is then received by the receiving unit. The receiving unit cannot sense the light emitted by the light emitting unit, so when there is a gap between the light emitting unit, the receiving unit and the shell, there will be no cross-light phenomenon, thereby improving the accuracy of the electronic device.

[0009] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] 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:

[0011] Figure 1 It is a structural schematic diagram of an electronic device in a related technical solution;

[0012] Figure 2 It is one of the structural schematic diagrams of the electronic device in some embodiments of the present application;

[0013] Figure 3 This is the second structural schematic diagram of the electronic device in some embodiments of the present application;

[0014] Figure 4 This is the third structural schematic diagram of the electronic device in some embodiments of the present application.

[0015] Figure 1 Reference numerals in the figures:

[0016] 102 ′ housing, 1022 ′ first optical window, 1024 ′ second optical window, 104 ′ light emitting unit, 106 ′ receiving unit, 108 ′ optical filter, 110 ′ supporting member, 112 ′ substrate.

[0017] Figure 2 , Figure 3 and Figure 4 Reference numerals in the figures:

[0018] 102 housing, 1022 first optical window, 1024 second optical window, 104 light emitting unit, 106 receiving unit, 1062 second filter, 1064 photosensitizing unit, 108 light conversion unit, 110 first filter, 112 substrate, 114 support, 116 cavity, 118 first shading unit, 120 second shading unit, 122 control circuit. DETAILED DESCRIPTION

[0019] 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.

[0020] The features of the terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. 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.

[0021] 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.

[0022] Combine the following Figure 2 , Figure 3 and Figure 4 An electronic device according to an embodiment of the present application is described.

[0023] like Figure 2 , Figure 3 and Figure 4As shown, an electronic device according to some embodiments of the present application includes: a shell 102, the shell 102 includes a first optical window 1022 and a second optical window 1024; a light-emitting unit 104, arranged opposite to the first optical window 1022, and used to emit light of a first wavelength; a receiving unit 106, which is arranged on the same side of the shell 102 as the light-emitting unit 104 and opposite to the second optical window 1024, and is used to receive light of a second wavelength, and output a first electrical signal based on the received light of the second wavelength; a light conversion unit 108, which is arranged in the first optical window 1022 or the second optical window 1024; wherein the light of the first wavelength is converted into light of the second wavelength by the light conversion unit 108.

[0024] In an embodiment of the present application, an electronic device is proposed. Specifically, the electronic device includes a housing 102, a light emitting unit 104, a receiving unit 106, and a light conversion unit 108. The light emitting unit 104 and the receiving unit 106 are arranged on the same side of the housing 102, so that the light emitted by the light emitting unit 104 can be transmitted to the other side of the housing 102 through the first optical window 1022 on the housing 102, and can be irradiated into the housing 102 again through the second optical window 1024 on the housing 102. In the above embodiment, the light emitting unit 104 emits light with a wavelength of a first wavelength, and the light conversion unit 108 can be used to convert the light with a wavelength of the first wavelength into light with a wavelength of a second wavelength, which is then received by the receiving unit 106. The receiving unit 106 cannot sense the light emitted by the light emitting unit 104, so when there is a gap between the light emitting unit 104, the receiving unit 106 and the housing 102, there will be no cross-light phenomenon, thereby improving the accuracy of the electronic device.

[0025] In addition, even if there is a cross-light path between the light-emitting unit 104 and the receiving unit 106 on the first side A of the shell 102, it will not affect the accuracy of the electronic device. Therefore, there is no need to reduce the gap between the light-emitting unit 104 and the receiving unit 106 and the shell 102 again, thereby reducing the possibility of damage to the shell 102 due to the stress generated by the assembly after the electronic device is assembled, thereby improving the reliability of the electronic device.

[0026] In some embodiments of the present application, the light emitting unit 104 may be a light emitting module including a plurality of light emitting diodes.

[0027] In some embodiments of the present application, the first optical window 1022 and the second optical window 1024 can be understood as holes provided on the housing 102 , and light emitted by the light emitting unit 104 can be transmitted between the first side A and the second side B of the housing 102 through the holes.

[0028] In some embodiments of the present application, the electronic device further includes a light-transmissive protective member disposed on the first optical window 1022 and / or the second optical window 1024 .

[0029] In this embodiment, a light-transmissive protective member is provided to reduce the amount of debris that enters the first side A of the housing 102 , thereby blocking the light emitted by the light-emitting unit 104 and affecting the normal use of the electronic device.

[0030] In addition, by providing a light-transmitting protective member, the entry of liquid into the first side A of the shell 102 can be reduced, thereby causing the light-emitting unit 104, the receiving unit 106 or the components on the first side A of the shell 102 to be soaked in liquid and damaged, ultimately causing failure of the electronic device.

[0031] In some embodiments of the present application, the light-transmissive protective member may be a light-transmissive plastic member.

[0032] In some embodiments of the present application, when the light conversion unit 108 is arranged in the first optical window 1022, the electronic device also includes: a first filter 110, which is arranged in close contact with the light conversion unit 108 and is located on the first side A of the shell 102. The first side A is a side where the light-emitting unit 104 is arranged, and is used to filter out light with a wavelength of the second wavelength.

[0033] In this embodiment, when the light conversion unit 108 is arranged in the first optical window 1022, a first filter 110 is arranged on the first side A of the shell 102, wherein the first filter 110 is used to filter out light with a wavelength of the second wavelength. Obviously, the first filter 110 can partially block the light emitted by the light conversion unit 108, so that the light emitted by the light conversion unit 108 will not be transmitted on the first side A of the shell 102, and then perceived by the receiving unit 106.

[0034] In this process, the light emitted by the light conversion unit 108 can be reduced from entering the first side A of the housing 102 through the first optical window 1022 and being sensed by the receiving unit 106, thereby causing abnormality in the detection result of the electronic device.

[0035] In some embodiments of the present application, the first filter 110 is fitted to the light conversion unit 108, and at least a portion of the first filter 110 is fitted to the shell 102, so that the first filter 110 completely covers the light conversion unit 108, so as to reduce the light with the second wavelength from entering the first side A of the shell 102.

[0036] At the same time, since at least a portion of the first filter 110 is disposed in close contact with the housing 102 , the first filter 110 can be used to strengthen the connection strength between the light conversion unit 108 and the housing 102 , thereby improving the reliability of the electronic device.

[0037] In some embodiments of the present application, the first filter 110 is used to filter out light with a wavelength of the second wavelength and transmit light with a wavelength of the first wavelength.

[0038] In some embodiments of the present application, the electronic device further includes: a substrate 112 disposed on the same side as the receiving unit 106 and the light emitting unit 104 , and the receiving unit 106 and the light emitting unit 104 are disposed on the substrate 112 and close to one side of the housing 102 .

[0039] In this embodiment, since the receiving unit 106 and the light-emitting unit 104 are both arranged on the substrate 112, the substrate 112 can be used to ensure that the receiving unit 106 and the light-emitting unit 104 can maintain a stable relative position, and then the relative position between the receiving unit 106 and the light-emitting unit 104 changes due to vibration, affecting the reliability of the electronic device.

[0040] In addition, since the receiving unit 106 and the light emitting unit 104 are both disposed on the substrate 112 , the substrate 112 can be used to simultaneously supply power to the receiving unit 106 and the light emitting unit 104 , so as to reduce the power supply cost.

[0041] At the same time, since the receiving unit 106 and the light-emitting unit 104 are both arranged on the substrate 112, when assembling the electronic device, the substrate 112 can be used to directly assemble the receiving unit 106 and the light-emitting unit 104 to the positions of the first optical window 1022 and the second optical window 1024, without the need for assemblers to assemble the receiving unit 106 and the light-emitting unit 104 one by one, thereby improving the assembly efficiency.

[0042] In some embodiments of the present application, the electronic device further includes: a support member 114 connecting the substrate 112 and the shell 102 , the substrate 112 , the shell 102 and the support member 114 enclose a cavity 116 , and the receiving unit 106 and the light-emitting unit 104 are located in the cavity 116 .

[0043] In this embodiment, the support member 114 is provided, which can be connected with the substrate 112 and the housing 102, so as to form a cavity 116 for accommodating the receiving unit 106 and the light-emitting unit 104. In this case, the cavity 116 can be used to protect the receiving unit 106 and the light-emitting unit 104, so as to reduce the entry of debris into the cavity 116, which affects the work of the receiving unit 106 and the light-emitting unit 104, or the entry of liquid into the cavity 116, which causes the receiving unit 106 and the light-emitting unit 104 to be damaged due to the entry of liquid.

[0044] In some embodiments of the present application, the support member 114 is a support foam.

[0045] In some embodiments of the present application, Figure 4 As shown, the electronic device also includes: a first shading unit 118, which is provided on the substrate 112, located on the side of the light-emitting unit 104, and is staggered with the first optical window 1022 and the second optical window 1024; and / or a second shading unit 120, which is provided on the substrate 112, located on the side of the receiving unit 106, and is staggered with the first optical window 1022 and the second optical window 1024.

[0046] In this embodiment, a first shading unit 118 is provided on the side of the light emitting unit 104 to block light escaping from the side of the light emitting unit 104, thereby reducing mutual influence between the light emitting units 104 in the housing 102 to affect the measurement accuracy of the electronic device.

[0047] By providing the second shading unit 120 , the side of the receiving unit 106 is shielded, thereby reducing the light entering through other second optical windows 1024 in the housing 102 from being sensed by the receiving unit 106 , thereby reducing the impact on the measurement accuracy of the electronic device.

[0048] In some embodiments of the present application, the light conversion unit 108 is a fluorescent layer made of fluorescent material.

[0049] In this embodiment, the fluorescent layer prepared by using fluorescent materials does not need to be powered, which reduces the difficulty of manufacturing electronic equipment while achieving light wavelength conversion.

[0050] In addition, since the light conversion unit 108 does not need to be powered, the safety requirement of the housing 102 contacting the skin is met.

[0051] In some embodiments of the present application, when the light conversion unit 108 is a fluorescent layer made of a fluorescent material and the light conversion unit 108 is disposed in the first optical window 1022 , the first filter 110 is a fluorescent filter.

[0052] In some embodiments of the present application, the second wavelength is greater than the first wavelength.

[0053] In some embodiments of the present application, the receiving unit 106 includes: a second filter 1062, used to filter out light with a first wavelength and pass light with a second wavelength; a photosensitive unit 1064, which is arranged in close contact with the second filter 1062, used to receive light passing through the second filter 1062, and output a first electrical signal, the first electrical signal is related to a first light intensity, and the first light intensity is the intensity of the light passing through the second filter 1062.

[0054] In this embodiment, the receiving unit 106 includes a second filter 1062 and a photosensitive unit 1064, wherein the second filter 1062 filters out light of the first wavelength, thereby reducing the light emitted by the light-emitting unit 104 being sensed by the photosensitive unit 1064, thereby causing cross-light phenomenon in the electronic device.

[0055] In addition, since the second filter 1062 can transmit light with a second wavelength, it can selectively filter the light passing through the second filter 1062, reducing the light of other wavelengths from irradiating the photosensitive unit 1064 and then being sensed by the photosensitive unit 1064, thereby affecting the accuracy of electronic device detection.

[0056] In some embodiments of the present application, when the light conversion unit 108 is a fluorescent layer made of fluorescent material and the light conversion unit 108 is disposed in the first optical window 1022, the first filter 110 is a fluorescent filter and the second filter 1062 is a long-wave pass filter.

[0057] In some embodiments of the present application, the shell 102 is made of a non-light-transmitting material.

[0058] In this embodiment, since the shell 102 is a structure made of non-light-transmitting material, the light generated by the light-emitting unit 104 located on the first side A of the shell 102 can be effectively reduced from being transmitted through the shell 102 to the second side B of the shell 102, thereby affecting the aesthetics of the electronic device.

[0059] In some embodiments of the present application, the second filter 1062 is a coating prepared on the photosensitive unit 1064 .

[0060] In some embodiments of the present application, the electronic device further includes: a control circuit 122 connected to the light-emitting unit 104 and the receiving unit 106; wherein the control circuit 122 is used to control the light-emitting unit 104 to emit light, and output a second electrical signal corresponding to the first electrical signal.

[0061] In this embodiment, the control circuit 122 is connected to the light emitting unit 104 and the receiving unit 106, thereby controlling the light emitting unit 104 to emit light of a first wavelength and receiving a first electrical signal from the receiving unit 106 to output a second electrical signal corresponding to the first electrical signal.

[0062] The second electrical signal may be understood as an electrical signal obtained by sorting or converting the first electrical signal, and the electronic device may use the second electrical signal to represent a measurement result of the electronic device.

[0063] In some embodiments of the present application, the electronic device is a wearable device, and the shell is a shell of the wearable device.

[0064] In some embodiments of the present application, the wearable device may be a bracelet, a watch, a finger ring, glasses, or headphones.

[0065] In some embodiments of the present application, the wearable device is a watch, wherein the watch measures physiological parameters of the human body by emitting light to human tissue and detecting changes in the intensity of transmitted or reflected light, wherein the physiological parameters include at least one of heart rate and blood oxygen.

[0066] Among them, the physiological parameter can be understood as the second electrical signal mentioned above.

[0067] 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.

[0068] 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 unit, arranged opposite to the first optical window, and configured to emit light of a first wavelength; a receiving unit, disposed on the same side of the housing as the light emitting unit and arranged opposite to the second optical window, for receiving light of a second wavelength and outputting a first electrical signal based on the received light of the second wavelength; A light conversion unit, disposed in the first optical window or the second optical window; Wherein, the light of the first wavelength is converted into the light of the second wavelength by the light conversion unit.

2. The electronic device according to claim 1, characterized in that: In the case where the light conversion unit is disposed in the first optical window, the electronic device further includes: The first filter is fitted with the light conversion unit and is located on a first side of the housing, where the first side is the side where the light emitting unit is disposed, and is used to filter out light with the second wavelength.

3. The electronic device according to claim 1, characterized in that: The electronic device further comprises: The substrate is arranged on the same side as the receiving unit and the light emitting unit. The receiving unit and the light emitting unit are arranged on one side of the substrate close to the housing.

4. The electronic device according to claim 3, characterized in that: The electronic device further comprises: A support member connects the substrate and the shell. The substrate, the shell and the support member are enclosed to form a cavity. The receiving unit and the light emitting unit are located in the cavity.

5. The electronic device according to claim 3, characterized in that: The electronic device further comprises: A first shading unit is provided on the substrate, located at a side of the light-emitting unit, and staggered with the first optical window and the second optical window; and / or The second shading unit is provided on the substrate, located at the side of the receiving unit, and is staggered with the first optical window and the second optical window.

6. The electronic device according to any one of claims 1 to 5, characterized in that: The light conversion unit is a fluorescent layer made of fluorescent material.

7. The electronic device according to any one of claims 1 to 5, characterized in that: The second wavelength is greater than the first wavelength.

8. The electronic device according to any one of claims 1 to 5, characterized in that: The receiving unit comprises: A second filter, used for filtering out light with the first wavelength and transmitting light with the second wavelength; The photosensitive unit is arranged in contact with the second filter, and is used to receive the light passing through the second filter and output the first electrical signal, wherein the first electrical signal is related to the first light intensity, and the first light intensity is the intensity of the light passing through the second filter.

9. The electronic device according to any one of claims 1 to 5, characterized in that: The electronic device further comprises: A control circuit connected to the light emitting unit and the receiving unit; The control circuit is used to control the light-emitting unit to emit light and output a second electrical signal corresponding to the first electrical signal.

10. The electronic device according to any one of claims 1 to 5, characterized in that: The electronic device is a wearable device, and the shell is a shell of the wearable device.

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