CN215738924U - Wearable device - Google Patents

Abstract

The utility model provides wearing equipment which comprises a wearing main body, a belt body with a first connecting belt and a second connecting belt and a monitoring device, wherein the monitoring device comprises a first light-emitting unit and a second light-emitting unit which are arranged at intervals, and a first detection unit and a second detection unit which are arranged at intervals, wherein a connecting line between the first light-emitting unit and the second light-emitting unit is mutually vertical to a connecting line between the first detection unit and the second detection unit, and the connecting line between the first detection unit and the second detection unit is parallel to the first connecting belt and the second connecting belt, so that when the wearing equipment inclines towards a first side part or a second side part of a wrist of a human body, one detection unit is always in close contact with the skin of the wrist, the condition that the detection unit cannot receive light signals is avoided, and the detection accuracy is ensured.

Description

Wearable device

Technical Field

The utility model belongs to the technical field of physiological detection, and particularly relates to wearable equipment.

Background

The monitoring devices in the existing wearable device include modules such as heart rate detection and blood oxygen detection, generally adopt a light detector to correspond a plurality of light emitting elements, lead to the sensing area of accepting light limited, therefore the degree of accuracy is lower and need improve luminous intensity in order to guarantee detection accuracy when setting up the light source of different wavelengths, and detection power consumption is higher. The optical detector is usually placed in the middle of the plurality of light-emitting elements and receives light emitted by the plurality of light-emitting elements, when the wearable device is worn on the wrist of a hand, sometimes the wearing is loose, an included angle between a detection surface of the optical detector and the skin surface of the wrist can be changed and inclines towards the outer side of the wrist, and the optical detector is arranged at the center of the optical detector, so that the detection surface of the optical detector is completely separated from the skin surface of the wrist when the inclination amplitude is large, the optical detector cannot receive light, and the detection accuracy is reduced.

Disclosure of Invention

The embodiment of the utility model aims to provide wearing equipment to solve the technical problems of high detection power consumption and low accuracy of the wearing equipment in the prior art when heart rate detection and blood oxygen detection are carried out.

In order to achieve the purpose, the utility model adopts the technical scheme that: the utility model provides a wearing device, which comprises a wearing main body, a belt body and a monitoring device, wherein the wearing main body is provided with a first connecting end surface and a second connecting end surface which are oppositely arranged, the belt body comprises a first connecting belt and a second connecting belt, the first connecting belt is fixed on the first connecting end surface, the second connecting belt is fixed on the second connecting end surface, the monitoring device is arranged in the wearing main body and is used for detecting human body physiological parameters, the monitoring device comprises a light-emitting component and a detection component, the light-emitting component comprises a first light-emitting unit and a second light-emitting unit which are arranged at intervals, the detection component comprises a first detection unit and a second detection unit which are arranged at intervals, wherein the connecting line between the first light-emitting unit and the second light-emitting unit is mutually vertical to the connecting line between the first detection unit and the second detection unit, and a line between the first detecting unit and the second detecting unit is parallel to the first connecting belt and the second connecting belt.

Further, the first light emitting unit and the second light emitting unit are symmetrically disposed about a connection line between the first detecting unit and the second detecting unit, and the first detecting unit and the second detecting unit are symmetrically disposed about a connection line between the first light emitting unit and the second light emitting unit.

Further, a distance between the first light emitting unit and the second light emitting unit is equal to a distance between the first detecting unit and the second detecting unit.

Further, the first light-emitting unit includes a first light-emitting element and the second light-emitting element, the first light-emitting element is a red light source, and the second light-emitting element is an infrared light source.

Furthermore, an extension line of a connecting line between the first light-emitting piece and the second light-emitting piece is perpendicular to a connecting line between the first detection unit and the second detection unit.

Further, the second light emitting unit is a green light source.

Furthermore, the first detection unit is configured to receive optical signals that are respectively emitted by the first light-emitting element and the second light-emitting element and reflected by wrist skin, and the second detection unit is configured to receive optical signals that are emitted by the second light-emitting unit and reflected by wrist skin.

Further, the wearable device further comprises a light guide assembly, the light guide assembly comprises a first light guide piece and a second light guide piece, the first light guide piece is arranged on the bottom side of the first light emitting unit, and the second light guide piece is arranged on the bottom side of the second light emitting unit.

Further, first leaded light spare includes first refraction portion and the first portion that is in the light, first refraction portion with first light-emitting component with the second light-emitting component is counterpointed and is set up, first portion that is in the light is located week side of first refraction portion.

Furthermore, the second light guide member includes a second refraction portion and a second light blocking portion, the second refraction portion and the second light emitting unit are disposed in an aligned manner, and the second light blocking portion is disposed on the periphery of the second refraction portion.

The wearing equipment and the electronic equipment provided by the utility model have the beneficial effects that: the wearable device is provided with the first detection unit and the second detection unit, the sensing area for receiving light can be enlarged, and the connecting line between the first light-emitting unit and the second light-emitting unit is perpendicular to the connecting line between the first detection unit and the second detection unit and is parallel to the first connecting belt and the second connecting belt, so that when the wearable device inclines to the side face of the wrist of a human body, one detection unit is always in close contact with the skin of the wrist, the situation that the detection unit cannot receive optical signals is avoided, and the detection accuracy is ensured.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a wearable device according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a wearable device acting on a wrist of a human body according to an embodiment of the present invention;

fig. 3 is a schematic view of a window in a monitoring device according to an embodiment of the present invention.

FIG. 4 is a schematic diagram of the distribution of light emitting components and detecting components provided by the embodiment of the present invention;

fig. 5 is a schematic partial cross-sectional structural view of a wearable device according to an embodiment of the present invention;

fig. 6 is a schematic partial cross-sectional structural view of a wearable device according to an embodiment of the present invention;

fig. 7 is a schematic side view of a wearable device according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

110. a first light emitting unit; 111. a first light emitting element; 112. a second light emitting member; 120. a second light emitting unit; 210. a first detection unit; 220. a second detection unit; 310. a first light guide; 311. a first refraction portion; 312. a first light blocking portion; 320. a second light guide; 321. a second refraction section; 322. a second light blocking part; 400. a control panel; 500. a wearing body; 510. a housing; 520. a display screen; 530. a speaker; 540. a light-transmitting window; 600. a belt body; 610. a first connecting belt; 620. a second connecting band; 10. a human wrist; 11. a first side portion; 12. a second side portion.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be 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 be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1 to 7 together, a wearable device according to an embodiment of the present invention will now be described. The wearable device is used in cooperation with a human wrist 10, it should be noted that the human wrist 10 may be a human wrist, an ankle or any other wearable wrist of a human body, and the specific part of the wrist is not limited by the utility model. The wearable device includes a wearable main body 500, a belt body 600, and a monitoring apparatus (not shown). It should be noted that the wearable device may be a smart bracelet, a smart watch, or other electronic detection devices worn on the wrist 10 of the human body, and the monitoring device of the wearable device may be disposed on a position close to the skin of the human body on the back of the electronic device.

Wherein, dress main part 500 has relative first connection terminal surface and the second connection terminal surface that sets up, area body 600 includes first connecting band 610 and second connecting band 620, first connecting band 610 is fixed in first connection terminal surface, second connecting band 620 is fixed in the second connection terminal surface, first connecting band 610 and second connecting band 620 can twine in human wrist, monitoring devices locates in the dress main part 500 and is used for detecting human physiological parameters, monitoring devices includes light emitting component and determine module.

The light emitting assembly comprises a first light emitting unit 110 and a second light emitting unit 120 which are arranged at intervals, the detecting assembly comprises a first detecting unit 210 and a second detecting unit 220 which are arranged at intervals, specifically, a connecting line between the first light emitting unit 110 and the second light emitting unit 120 is perpendicular to a connecting line between the first detecting unit 210 and the second detecting unit 220, and the connecting line between the first detecting unit 210 and the second detecting unit 220 is parallel to a first connecting belt 610 and a second connecting belt 620, so that the distance from the first detecting unit 210 to the first side of the wrist of the human body is far smaller than the distance from the first light emitting unit 110 to the second side of the wrist of the human body, and the distance from the second detecting unit 220 to the second side of the wrist of the human body is far smaller than the distance from the second light emitting unit 120 to the second side of the wrist of the human body. It is understood that a line between the first light emitting unit 110 and the second light emitting unit 120 crosses a line between the first sensing unit 210 and the second sensing unit 220.

Compared with the prior art, the wearable device and the electronic device provided by the utility model comprise a wearable main body 500, a belt body and a monitoring device, wherein the wearable main body 500 is provided with a first connecting end surface and a second connecting end surface which are oppositely arranged, the belt body 600 comprises a first connecting belt 610 fixed on the first connecting end surface and a second connecting belt 620 fixed on the second connecting end surface, the monitoring device comprises a light-emitting component and a detection component, the light-emitting component comprises a first light-emitting unit 110 and a second light-emitting unit 120, the detection component comprises a first detection unit 210 and a second detection unit 220, compared with the prior art in which only one light detector is arranged, the arrangement of the two detection devices can increase the sensing area for receiving light, and by vertically arranging the connecting line between the first light-emitting unit 110 and the second light-emitting unit 120 and the connecting line between the first detection unit 210 and the second detection unit 220, first detecting element 210 is close to the first side 11 setting of human wrist 100, is on a parallel with first connecting band 610 and second connecting band 620 with the line between first detecting element 210 and the second detecting element 220 for wearing equipment has a detecting element and wrist skin in close contact with all the time when inclining to first lateral part 21 or second lateral part 12, has avoided the unable circumstances of receiving light signal of detecting element, has guaranteed the degree of accuracy that detects.

Specifically, as shown in fig. 2, when the wearable device acts on the wrist 100 of the human body of the user, when the user wears the wearable device loosely, the wearable device deflects around the X axis and inclines towards the first side portion 11 or the second side portion 12, so that an included angle between the detection surface of the detection unit and the Y axis and the Z axis changes, and thus a part of light emitted by the light emitting unit beside the detection unit cannot be received by the detection unit, and the larger the deflection amplitude of the wearable device around the X axis is, the larger the change of the included angle between the detection surface and the Y axis and the Z axis is, because the detection unit in the existing wearable device is usually arranged at the central position, when the physiological monitoring deflects around the X axis, the detection surface is easily separated from the skin of the wrist, and thus the light emitted by the light emitting unit cannot be received by the detection unit at all.

It can be understood that, in the wearing device provided in this embodiment, since the first detecting unit 210 and the second detecting unit 220 are distributed along the Y-axis direction and are relatively close to the first side portion 11 and the second side portion 12, when the wearing device deflects and inclines toward the first side portion 11 or the second side portion 12, one detecting unit can be in close contact with the skin of the wrist all the time, so that the change of the included angle between the detecting surface of the detecting unit and the Y-axis and the Z-axis can be ignored, the light signal emitted by the light-emitting component received by the detecting unit is not affected, and the accuracy of detection is ensured.

Referring to fig. 1, as an embodiment of the wearable device provided by the present invention, the first light emitting unit 110 and the second light emitting unit 120 are symmetrically disposed about a connection line between the first detecting unit 210 and the second detecting unit 220, and the first detecting unit 210 and the second detecting unit 220 are symmetrically disposed about a connection line between the first light emitting unit 110 and the second light emitting unit 120. It can be understood that the first light emitting unit 110, the second light emitting unit 120, the first detecting unit 210 and the second detecting unit 220 are arranged in the above manner, which is very neat and beautiful, and improves the use experience of the user.

Referring to fig. 1, as an embodiment of the wearable device provided by the present invention, a distance between the first light emitting unit 110 and the second light emitting unit 120 is equal to a distance between the first detecting unit 210 and the second detecting unit 220. It should be noted that the distance between the first light emitting unit 110 and the second light emitting unit 120 is the distance between the geometric centers of the first light emitting unit 110 and the second light emitting unit 120, and the distance between the first detecting unit 210 and the second detecting unit 220 is the distance between the geometric centers of the first detecting unit 210 and the second detecting unit 220. The two distances are set to be equal, so that the layout is more attractive, and the space utilization rate is improved.

Referring to fig. 3 and 4, as an embodiment of the wearable device provided by the present invention, the first light-emitting unit 110 includes a first light-emitting element 111 and a second light-emitting element 112, the first light-emitting element 111 is a red light source, and the second light-emitting element 112 is an infrared light source. Specifically, the first light emitting unit 110 is configured to emit a first light, which is a combination of red light and infrared light, and the first light emitting element 111 and the second light emitting element 112 are mainly used for blood oxygen detection, and the specific principle is that according to the spectral characteristics of oxyhemoglobin and reduced hemoglobin in the red light and infrared light regions, the absorption of oxyhemoglobin and reduced hemoglobin to red light and infrared light is very different, and the light absorption degree and light scattering degree of blood are related to the blood oxygen saturation and the hemoglobin content, so that the contents of oxyhemoglobin and reduced hemoglobin in blood are different, and the absorption spectra of blood are also different, so that red light and infrared light can be adopted for blood oxygen detection.

Referring to fig. 4, as an embodiment of the wearable device provided by the present invention, an extension line of a connection line between the first light emitting element 111 and the second light emitting element 112 is perpendicular to a connection line between the first detecting unit 210 and the second detecting unit 220.

Referring to fig. 3, as an embodiment of the wearable device provided by the present invention, the second light emitting unit 120 is a green light source. Specifically, the second light emitting unit 120 is used for emitting a green second light, and human blood is red, so that green light emitted from the green light source can be effectively absorbed, and the fluctuation of light reflected from the skin can be more obvious in the green spectrum, so that the first light emitting unit is used for emitting a light signal for detecting blood oxygen.

Referring to fig. 3, as an embodiment of the wearable device provided by the present invention, the first detecting unit 210 is configured to receive optical signals respectively emitted by the first light-emitting element 111 and the second light-emitting element 112 and reflected by the skin of the wrist, and the second detecting unit 220 is configured to receive optical signals emitted by the second light-emitting unit 120 and reflected by the skin of the wrist. Specifically, the light emitting assembly and the detecting assembly are disposed on a side close to the skin, the first detecting unit 210 and the second detecting unit 220 are photodiodes, when the user uses the wearable device, the first light emitting element 111, the second light emitting element 112 and the second light emitting unit 120 respectively emit light with a specific wavelength to irradiate the skin, and the first detecting unit 210 and the second detecting unit 220 receive and measure the light irradiated to the skin and reflected by the skin, so that the physiological parameters of the human body of the user can be determined.

The blood reflects light to feed back the blood oxygen heart rate condition, the blood absorbs light with specific wavelength, and the light with the wavelength is absorbed greatly every time the heart pumps blood, so that the light with the wavelength reflected by the skin changes. The reflected light may thus be captured by a light detector to determine a human blood parameter, such as a user's pulse in the skin, pressure level, blood oxygen value, heart rate value, etc.

The skin forms reflected light rays for the received light rays, and the first detection unit 210 and the second detection unit 220 receive the reflected light rays and perform related algorithm analysis by a calculation logic unit in the wearable device. In another embodiment of the present invention, the first detecting unit 210 and the second detecting unit 220 are configured to receive the reflected light of the first light and the second light together, and form a first reflected light and a second reflected light, where the first reflected light is obtained after the first light is reflected by the skin, and the second reflected light is obtained after the second light is reflected by the skin.

Referring to fig. 3, 5 and 6, as an embodiment of the wearable device of the present invention, the wearable device further includes a light guide assembly, the light guide assembly includes a first light guide 310 and a second light guide 320, the first light guide 310 is disposed at a bottom side of the first light emitting unit 110, and the second light guide 320 is disposed at a bottom side of the second light emitting unit 120.

Specifically, the first light guide 310 is disposed on a path of the first light emitted by the first light emitting unit 110 and used for adjusting an incident angle between the first light and the skin of the wrist, and the first light emitted from the first light emitting unit 110 is refracted after being incident on the first light guide 310, so that when the refracted first light is incident on the skin of the user, the incident angle between the first light and the skin surface of the user is closer to 90 degrees, thereby reducing the size of the beam of the first light emitted to the skin of the user, and since the distance between the first light emitting unit 110 and the first detecting unit 210 is relatively short, the first light can be accurately emitted to the first detecting unit 210 after being reflected on the skin surface of the user, and the signal intensity of the first detecting unit 210 for receiving the optical signal of the first light is improved.

Referring to fig. 5, as an embodiment of the wearable device provided by the present invention, the first light guide 310 includes a first refraction portion 311 and a first light blocking portion 312, the first refraction portion 311 is disposed opposite to the first light emitting element 111 and the second light emitting element 112, and the first light blocking portion 312 is disposed on the periphery of the first refraction portion 311.

Specifically, the first light emitted by the first light emitting element 111 and the second light emitting element 112 can be refracted in the first refraction portion 311, so that the refracted first light has a smaller beam size when being emitted to the skin of the wrist, and the light path reflected on the surface of the skin of the wrist is closer to the first detection unit 210, thereby improving the efficiency of the first detection unit 210 for receiving the optical signal of the first light, and the signal intensity is higher.

The first light blocking part 312 is used for blocking light around the first light emitting unit 110 from being emitted to the first light guiding part, the first light blocking part 312 is positioned in an area outside the first light guiding part, and the ridge of the first light blocking part 312 is used for blocking light around the first light emitting unit 110, so that redundant non-signal light is blocked from being emitted to the first light guiding part, thereby preventing the non-signal light from being emitted to the first detection unit 210, and improving the efficiency of the first detection unit 210 for receiving light signals.

Referring to fig. 3 and fig. 6, as an embodiment of the wearable device of the present invention, the second light guide 320 includes a second refraction portion 321 and a second light blocking portion 322, the second refraction portion 321 and the second light emitting unit 120 are disposed in an opposite position, and the second light blocking portion 322 is disposed on a peripheral side of the second refraction portion 321.

Specifically, the second light emitted by the second light emitting unit 120 can be refracted in the second refraction portion 321, so that the refracted second light has a smaller beam size when being emitted to the wrist skin, and the light path reflected on the surface of the wrist skin is closer to the second detecting unit 220, thereby improving the efficiency and signal intensity of the second detecting unit 220 for receiving the optical signal of the second light.

The second light-blocking part 322 is used for blocking light around the second light-emitting unit 120 from emitting to the second light-guiding part, the second light-blocking part 322 is located in an area outside the first light-guiding part, and the ridge of the second light-blocking part 322 is used for blocking light around the second light-emitting unit 120, so that redundant non-signal light is blocked from emitting to the second light-guiding part, and thus the non-signal light is prevented from emitting to the second detecting unit 220, and the efficiency of the second detecting unit 220 for receiving light signals is improved.

Preferably, the first light guide 310 and the second light guide 320 are both fresnel lenses.

Referring to fig. 3 and 7, as an embodiment of the wearable device provided by the present invention, the wearable main body 500 includes a housing 510, a display 520, a speaker 530, and a plurality of light-transmitting windows 540 located at the back of the housing 510. The monitoring device is disposed inside the casing 510 and further includes a control board 400, the first light emitting unit 110, the second light emitting unit 120, the first detecting unit 210 and the second detecting unit 220 are all fixed on the control board 400 and electrically connected to the control board 400, the control board 400 is electrically connected to the controller of the wearable device, the controller controls the light emitting assembly to emit light through the control board, and the detecting assembly is controlled to receive PPG signals.

The first light emitting unit 110, the second light emitting unit 120, the first detecting unit 210 and the second detecting unit 220 respectively correspond to a light-transmitting window 540, wherein the first light guide 310 is disposed between the first light emitting unit 110 and the light-transmitting window 540, and the second light guide 320 is disposed between the second light emitting unit 120 and the light-transmitting window 540, so as to realize a light-gathering effect and improve the accuracy of heart rate detection and blood oxygen detection.

The light-transmitting window 540 is formed of a transparent partition to isolate the light-emitting elements or the light-sensing elements inside the first light-emitting unit 110, the second light-emitting unit 120, the first detecting unit 210 and the second detecting unit 220 from the outside, and to prevent contamination of external moisture and dust from causing a decrease in the light-emitting efficiency of the light-emitting elements or a decrease in the light-sensing efficiency of the light-sensing elements, and the transparent partition includes transparent glass or the like, which is not limited herein.

Referring to fig. 3 and 7, as an embodiment of the electronic device provided by the present invention, the back of the housing 510 is convex, specifically, the back of the housing 510 is arc-shaped, so that the plurality of light-transmitting windows 540 can be in closer contact with the human body, thereby reducing the environmental noise; on the other hand, when the wearable device is inclined towards the first side 11 or the second side 12 of the wrist 10 of the human body, the first detecting unit 210 or the second detecting unit 220 is in closer contact with the skin of the wrist, so that the accuracy of detection is further ensured.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A wearing device is characterized by comprising a wearing main body, a belt body and a monitoring device, wherein the wearing main body is provided with a first connecting end face and a second connecting end face which are arranged oppositely, the belt body comprises a first connecting belt and a second connecting belt, the first connecting belt is fixed on the first connecting end face, the second connecting belt is fixed on the second connecting end face, the monitoring device is arranged in the wearing main body and is used for detecting physiological parameters of a human body, the monitoring device comprises a light-emitting component and a detection component, the light-emitting component comprises a first light-emitting unit and a second light-emitting unit which are arranged at intervals, the detection component comprises a first detection unit and a second detection unit which are arranged at intervals, wherein a connecting line between the first light-emitting unit and the second light-emitting unit is mutually vertical to a connecting line between the first detection unit and the second detection unit, and a line between the first detecting unit and the second detecting unit is parallel to the first connecting belt and the second connecting belt.

2. The wearable device according to claim 1, wherein the first light emitting unit and the second light emitting unit are symmetrically disposed about a line between the first detection unit and the second detection unit, and the first detection unit and the second detection unit are symmetrically disposed about a line between the first light emitting unit and the second light emitting unit.

3. The wearable device of claim 2, wherein a distance between the first light emitting unit and the second light emitting unit is equal to a distance between the first detection unit and the second detection unit.

4. The wearable device of claim 1, wherein the first light emitting unit comprises a first light emitting element and a second light emitting element, the first light emitting element being a red light source and the second light emitting element being an infrared light source.

5. The wearable device of claim 4, wherein an extension line of a connection line between the first light emitting element and the second light emitting element is perpendicular to a connection line between the first detecting unit and the second detecting unit.

6. The wearable device of claim 1, wherein the second light emitting unit is a green light source.

7. The wearing apparatus as claimed in claim 4, wherein the first detecting unit is configured to receive the light signals emitted by the first and second light-emitting elements respectively and reflected by the skin of the wrist, and the second detecting unit is configured to receive the light signals emitted by the second light-emitting unit and reflected by the skin of the wrist.

8. The wearable device of claim 4, further comprising a light guide assembly, the light guide assembly comprising a first light guide and a second light guide, the first light guide disposed on a bottom side of the first light emitting unit, the second light guide disposed on a bottom side of the second light emitting unit.

9. The wearable device of claim 8, wherein the first light guide comprises a first refraction portion and a first light blocking portion, the first refraction portion is aligned with the first light emitting element and the second light emitting element, and the first light blocking portion is disposed on a peripheral side of the first refraction portion.

10. The wearable device according to claim 8, wherein the second light guide includes a second refraction portion and a second light blocking portion, the second refraction portion is aligned with the second light emitting unit, and the second light blocking portion is disposed on a peripheral side of the second refraction portion.

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