Detection device

Abstract

The invention relates to a detection device which can realize miniaturization and can suppress heating of an acceleration detection part caused by light incidence. A detection device, which is attached to a predetermined site of a subject and has a predetermined first direction upward, is provided with: a base having a surface perpendicular to the first direction; an acceleration detection unit provided on the base unit; a cover part which covers the base part together with the acceleration detection part on the base part; a control unit that is provided on the cover unit and detects the body movement of the subject on the basis of the output of the acceleration detection unit when the detection device is attached to the site; a light-emitting unit that emits light; a light receiving unit that receives the light; and a housing part that houses the base part, the acceleration detection part, the cover part, the control part, the light emitting part, and the light receiving part, the height of the upper surface of the light emitting part in the first direction being equal to or greater than the height of the bottom surface of the cover part in the first direction.

Description

Technical Field

[0001] The present disclosure relates to a detection device. Background Art

[0002] Detection devices for non-invasively detecting biological information such as pulse, pulse rate, and oxygen saturation are being researched and developed.

[0003] In this regard, a detection device is known which is installed at a predetermined target site of a subject. The detection device includes: a biological information detection unit having a light-emitting unit that emits light and a light-receiving unit that receives light, and detecting the biological information of the subject based on the amount of light received by the light-receiving unit from the light emitted by the light-emitting unit and reflected inside the target site; and an acceleration detection unit that detects the acceleration of the target site (see Patent Document 1).

[0004] Patent Document 1: Japanese Unexamined Patent Application Publication No. 2020-000596

[0005] In the detection device described in Patent Document 1, the biological information detection unit and the acceleration detection unit are arranged in different spaces from each other. However, in the case of attempting to miniaturize the detection device, it is preferable that the biological information detection unit and the acceleration detection unit are arranged in the same space as each other. However, when the biological information detection unit and the acceleration detection unit are arranged in the same space as each other, a part of the light emitted from the biological information detection unit may be absorbed by the acceleration detection unit. In addition, the acceleration detection unit is mostly dark gray. In this case, the acceleration detection unit absorbs most of the light irradiated from the biological information detection unit to the acceleration detection unit. Such absorption of light by the acceleration detection unit induces thermal expansion of the acceleration detection unit, resulting in a decrease in the detection accuracy of the acceleration by the acceleration detection unit, and thus is not preferable. Summary of the Invention

[0006] To solve the above problems, one aspect of the present disclosure is a detection device that is installed at a predetermined site of a subject, with a predetermined first direction as the upward direction. The detection device includes: a base having a surface perpendicular to the first direction; an acceleration detection unit provided on the base; a cover that covers the base and the acceleration detection unit together on the base; a control unit provided on the cover that detects the body movement of the subject based on the output of the acceleration detection unit when the detection device is installed at the site; a light-emitting unit that emits light; a light-receiving unit that receives the light; and a storage unit that stores the base, the acceleration detection unit, the cover, the control unit, the light-emitting unit, and the light-receiving unit, and the height of the upper surface of the light-emitting unit in the first direction is higher than the height of the bottom surface of the cover in the first direction. Brief Description of the Drawings

[0007] Figure 1 This is a front view showing an example of the structure of the detection device 1.

[0008] Figure 2 This is Figure 1 the top view of the detection device 1 shown.

[0009] Figure 3 This is a front view showing a first modified example of the structure of the detection device 1.

[0010] Figure 4 This is Figure 3 the top view of the detection device 1 shown.

[0011] Figure 5 This is a front view showing a second modified example of the structure of the detection device 1.

[0012] Figure 6 This is Figure 5 the top view of the detection device 1 shown.

[0013] Figure 7 This is a front view showing a third modified example of the structure of the detection device 1.

[0014] Figure 8 This is Figure 7 the top view of the detection device 1 shown.

[0015] Figure 9 This is a front view showing a fourth modified example of the structure of the detection device 1.

[0016] Figure 10 This is Figure 9 the top view of the detection device 1 shown.

[0017] Figure 11 This is a front view showing a fifth modified example of the structure of the detection device 1.

[0018] Figure 12 This is Figure 11 the top view of the detection device 1 shown.

[0019] Figure 13 This is a front view showing a sixth modified example of the structure of the detection device 1.

[0020] Figure 14 This is Figure 13 the top view of the detection device 1 shown.

[0021] Figure 15 This is a front view showing a seventh modified example of the structure of the detection device 1.

[0022] Figure 16 This is Figure 15Top view of the detection device 1 shown

[0023] Figure 17 Is the front view showing an eighth modification of the structure of the detection device 1

[0024] Figure 18 Is Figure 17 Top view of the detection device 1 shown

[0025] Figure 19 Is the front view showing an example of the structure of the detection device 2

[0026] Figure 20 Is Figure 19 Top view of the detection device 2 shown

[0027] Figure 21 Is the front view showing a first modification of the structure of the detection device 2

[0028] Figure 22 Is Figure 21 Top view of the detection device 2 shown

[0029] Figure 23 Is the front view showing a second modification of the structure of the detection device 2

[0030] Figure 24 Is Figure 23 Top view of the detection device 2 shown

[0031] Figure 25 Is the front view showing a third modification of the structure of the detection device 2

[0032] Figure 26 Is Figure 25 Top view of the detection device 2 shown

[0033] Figure 27 Is the front view showing an example of the structure of the detection device 3

[0034] Figure 28 Is Figure 27 Top view of the detection device 3 shown

[0035] Figure 29 Is the front view showing a first modification of the structure of the detection device 3

[0036] Figure 30 Is Figure 29 Side view of the detection device 3 shown

[0037] Figure 31 Is Figure 29 Top view of the detection device 3 shown

[0038] Figure 32It is a front view showing a second modified example of the structure of the detection device 3.

[0039] Figure 33 It is a front view showing a third modified example of the structure of the detection device 3.

[0040] Reference Numeral Explanation

[0041] 1, 2; 3: Detection device; 11: Base; 12: Acceleration detection unit; 13: Cover part; 14: Control unit; 15: Biological information detection unit; 16: Storage part; 17: First light-shielding member; 18: Second light-shielding member; 19: Third light-shielding member; 20: Fourth light-shielding member; 21: Fifth light-shielding member; 22: Sixth light-shielding member; 23: Filter; 151: Light-emitting part; 152: Light-receiving part; 161: First member; 162: Second member; 163: Adhesive; TC: Three-dimensional coordinate system; W1: First wall; W2: Second wall; W3: Third wall. Detailed Embodiments

[0042] <Summary of the Present Disclosure>

[0043] Hereinafter, an overview of the present disclosure will be described. In the present disclosure, a structure of a detection device for a predetermined target part installed on a target person is described. The detection device includes: a biological information detection unit having a light emitting unit that emits light and a light receiving unit that receives light, and detecting biological information of the target person based on the amount of light received by the light receiving unit that is reflected inside the target part from the light emitted by the light emitting unit; and an acceleration detection unit that detects the acceleration of this part. When the biological information detection unit and the acceleration detection unit are arranged in the same space as each other, miniaturization of the detection device can be achieved as compared with the case where the biological information detection unit and the acceleration detection unit are arranged in different spaces from each other. However, when the biological information detection unit and the acceleration detection unit are arranged in the same space as each other, sometimes an increase in the amount of light that does not pass through the target part and enters the acceleration detection unit from the light emitted by the light emitting unit, an increase in the amount of light that enters the light receiving unit as stray light from the light emitted by the light emitting unit, an increase in the amount of light that is diffusely reflected in this space and enters the light receiving unit from the light emitted by the light emitting unit, etc. occur. An increase in the amount of light that does not pass through the target part and enters the acceleration detection unit from the light emitted by the light emitting unit induces thermal expansion of the acceleration detection unit, resulting in a decrease in the detection accuracy of the acceleration by the acceleration detection unit, and thus is not preferable. An increase in the amount of light that enters the light receiving unit as stray light from the light emitted by the light emitting unit causes a decrease in the detection accuracy of biological information, and thus is not preferable. Also, an increase in the amount of light that is diffusely reflected in the space and enters the light receiving unit from the light emitted by the light emitting unit causes a decrease in the detection accuracy of biological information, and thus is not preferable. Therefore, in the present disclosure, a structure of the detection device that can solve at least one of these problems is described. Such a structure can be realized, for example, by each of the first to third embodiments described below, or a combination of a part or all of these three embodiments. Therefore, hereinafter, these three embodiments will be described in detail respectively. In addition, as long as the functions of the detection device described below are not impaired, each of these three embodiments or a combination of a part or all of these three embodiments can also be combined with other structures.

[0044] <First Embodiment>

[0045] Hereinafter, the first embodiment will be described with reference to the drawings.

[0046] <Outline of the Detection Device of the First Embodiment>

[0047] First, an outline of the detection device of the first embodiment will be described.

[0048] The detection device of the first embodiment is installed at a predetermined part of the subject. In this detection device, a predetermined first direction is treated as the upward direction. In addition, this detection device includes a base, an acceleration detection unit, a lid portion, a control unit, a light emitting unit, a light receiving unit, and a storage unit. The base has a surface perpendicular to the first direction. The acceleration detection unit is provided on the base. The lid portion covers the acceleration detection unit together with the base on the base. The control unit is provided on the lid portion and detects the body movement of the subject based on the output of the acceleration detection unit when the detection device is installed at this part. The light emitting unit emits light. The light receiving unit receives light. The storage unit stores the base, the acceleration detection unit, the lid portion, the control unit, the light emitting unit, and the light receiving unit. Moreover, the height in the first direction of the upper surface of the light emitting unit is higher than the height in the first direction of the bottom surface of the lid portion. In addition, the light emitting unit and the light receiving unit are provided on the same component. Thereby, this detection device can reduce the amount of light irradiated from the light emitting unit to the acceleration detection unit. As a result, this detection device can suppress the heating of the acceleration detection unit due to the incidence of light. Moreover, in this detection device, the light emitting unit and the light receiving unit that function as a biological information detection unit, and the acceleration detection unit are housed in the storage unit. As a result, compared with the case where the light emitting unit and the light receiving unit that function as a biological information detection unit and the acceleration detection unit are housed in respective storage units, this detection device can be miniaturized. That is, this detection device can be miniaturized while suppressing the heating of the acceleration detection unit due to the incidence of light.

[0049] Hereinafter, the structure of the detection device of the first embodiment will be described in detail.

[0050] <Structure of the detection device of the first embodiment>

[0051] Hereinafter, the structure of the detection device of the first embodiment will be described using the detection device 1 as an example. In the first embodiment, for the sake of convenience of explanation, the user of the detection device 1 will be referred to as the first user for explanation. In addition, in the first embodiment, for the sake of convenience of explanation, observing the detection device 1 in a certain direction will be referred to as observing from that direction for explanation. In addition, the first user is an example of the subject.

[0052] Figure 1 is a front view showing an example of the structure of the detection device 1. Figure 2 is Figure 1 the top view of the detection device 1 shown. In addition, in Figure 1 in order to clearly show the internal structure of the detection device 1, the components covering the front of the inside of the detection device 1 are omitted. In addition, in Figure 2In [the figure], in order to clearly show the internal structure of the detection device 1, the component covering the upper surface of the interior of the detection device 1 is omitted. Here, the three-dimensional coordinate system TC is a three-dimensional orthogonal coordinate system representing the directions in the figure depicting the three-dimensional coordinate system TC. In the present disclosure, for ease of explanation, the X-axis in the three-dimensional coordinate system TC is simply referred to as the X-axis for description. Additionally, in the present disclosure, for ease of explanation, the Y-axis in the three-dimensional coordinate system TC is simply referred to as the Y-axis for description. Further, in the present disclosure, for ease of explanation, the Z-axis in the three-dimensional coordinate system TC is simply referred to as the Z-axis for description. Moreover, in the present disclosure, for ease of explanation, the positive direction of the Z-axis is referred to as up or the upward direction, and the negative direction of the Z-axis is referred to as down or the downward direction for description.

[0053] The detection device 1 is a device that uses light to detect biological information. In the first embodiment, as an example, the case where the detection device 1 is a device for detecting the biological information of a person is described. In this case, the detection device 1 detects pulse, pulse rate, oxygen saturation, etc. as biological information and is provided, for example, in vital sign devices such as smartwatches, activity trackers, smart rings, pulse oximeters, smart earphones, etc. In addition, the detection device 1 can also be a structure provided in a wireless mouse, a door handle sensor, a sensor of a car's steering wheel, etc. In the present disclosure, the case where the detection device 1 detects the biological information of a first user is described. In this case, the detection device 1 is installed at a predetermined part of the first user. This part is, for example, the wrist, etc., but is not limited thereto. In the present disclosure, this part is referred to as the target part for description. Additionally, the detection device 1 can be a structure for detecting the biological information of animals other than humans or a structure for detecting the biological information of plants.

[0054] Specifically, the detection device 1 is pressed against the skin of the target part and emits light of a predetermined wavelength band toward the skin. Then, the detection device 1 receives the reflected light of the light emitted toward the skin and detects the pulse rate, oxygen saturation, etc. based on the temporal change in the amount of received light of the received reflected light. Here, the substance that reflects the light emitted by the detection device 1 is, for example, hemoglobin in capillaries, etc., but is not limited thereto. Additionally, for example, when the detection device 1 detects the pulse rate, it uses light in the green wavelength band. The green wavelength band is 500 - 570 [nm]. Also, for example, when the detection device 1 detects the oxygen saturation, it uses light in the red wavelength band, infrared wavelength band, etc. The red wavelength band is 630 - 680 [nm], and the infrared wavelength band is 850 - 1000 [nm].

[0055] The detection device 1 includes, for example, a base 11, an acceleration detection unit 12, a cover portion 13, a control unit 14, a biological information detection unit 15, and a storage unit 16. In addition, the detection device 1 further includes other components such as a transmission path and connection terminals that electrically connect some or all of the base 11, the acceleration detection unit 12, the control unit 14, and the biological information detection unit 15 to each other. The transmission path is, for example, wire bonding, a wire, etc., but is not limited thereto. However, in the present disclosure, descriptions of these other components are omitted. Therefore, in each figure, illustrations of these other components are also omitted.

[0056] In the detection device 1, a direction A1 predetermined with respect to the base 11 is treated as the upward direction. The direction A1 can be any direction. In the present disclosure, the case where the direction A1 coincides with the positive direction of the Z-axis is described. Therefore, in the present disclosure, the position of a certain surface in the direction A1 is described as the height of the surface. The direction A1 is an example of each of the first direction and the height direction.

[0057] The base 11 is, for example, a glass substrate. A semiconductor chip (not shown) is fixed to the surface of the base 11 by a chip mounting material. In addition, the base 11 can also be, for example, a substrate made of phenolic resin, polyimide resin, fluororesin, or epoxy resin. The base 11 has a surface perpendicular to the direction A1. In the present disclosure, as an example, as Figure 1 and Figure 2 shown, the case where the base 11 is a rectangular flat plate-shaped substrate having an upper surface and a lower surface perpendicular to the direction A1 is described. In addition, in the present disclosure, as an example, as Figure 1 and Figure 2 shown, the case where the long side direction of the base 11 is parallel to the Y-axis and the short side direction of the base 11 is parallel to the X-axis is described. In addition, in the examples shown in Figure 1 and Figure 2 a recess for disposing the acceleration detection unit 12 is formed on the upper surface of the base 11. In addition, it can also be a structure in which such a recess is not formed on the upper surface of the base 11. In this case, the acceleration detection unit 12 is disposed on the upper surface of the base 11.

[0058] The acceleration detection unit 12 is a sensor, a device, etc. that detects the acceleration of the target part when the detection device 1 is mounted on the target part. As long as the acceleration detection unit 12 is a sensor capable of detecting acceleration, it can be any sensor, device, etc. The acceleration detection unit 12 outputs information indicating the detected acceleration to the control unit 14. In Figure 1 and Figure 2In the example shown, the acceleration detection unit 12 is composed of a silicon structure provided on the base 11. The structure of the acceleration detection unit 12 as the silicon structure can be a known structure or a structure developed in the future. Therefore, in this disclosure, a detailed description of the structure of the acceleration detection unit 12 will be omitted.

[0059] The acceleration detection unit 12 is provided on the base 11. More specifically, the acceleration detection unit 12 is provided in a recess formed in the upper surface of the base 11. In Figure 1 the example shown, the height of the acceleration detection unit 12 in the direction A1 is higher than the depth of the recess in the direction A1. Therefore, in this example, in Figure 1 it, the upper surface of the acceleration detection unit 12 is above the upper surface of the base 11.

[0060] The cover part 13 is an opaque member that covers the base 11 and the acceleration detection unit 12 together on the base 11. Therefore, in the detection device 1, the incidence of light passing through the cover part 13 to the acceleration detection unit 12 is suppressed. The cover part 13 is, for example, a silicon cap. In Figure 1 and Figure 2 the example shown, a recess covering the upper part of the acceleration detection unit 12 is formed on the lower surface of the cover part 13. In addition, the cover part 13 may be other members that are opaque and can cover the base 11 and the acceleration detection unit 12 together on the base 11 instead of the silicon cap. The other members are, for example, opaque resin members, etc., but are not limited thereto.

[0061] The control unit 14 is an IC (Integrated Circuit) chip that controls the acceleration detection unit 12, the biological information detection unit 15, etc. The control unit 14 is provided on the cover part 13. The control unit 14 detects the body movement of the first user, for example, based on the output of the acceleration detection unit 12 when the detection device 1 is mounted on the target part. In Figure 1 and Figure 2 the example shown, the control unit 14 extends in a direction parallel to the X axis. However, the control unit 14 may also have a structure that extends in a direction not parallel to the X axis.

[0062] The biological information detection unit 15 has a light emitting unit 151 and a light receiving unit 152.

[0063] The light-emitting unit 151 is a light-emitting element, a light-emitting device, etc. that emits light in a predetermined wavelength band. The light-emitting unit 151 is controlled by the control unit 14. The light-emitting unit 151 is, for example, an LED (Light Emitting Diode), but instead, it may be other light-emitting elements or other light-emitting devices such as an OLED (Organic Light Emitting Diode), a μ (Micro) LED, a VCSEL (Vertical Cavity Surface Emitting Laser). When the detection device 1 is installed at the target site, the light-emitting unit 151 emits light toward the target site. This wavelength band is, for example, the aforementioned green wavelength band, red wavelength band, infrared wavelength band, etc., but is not limited thereto. In addition, the depth at which the light emitted from the light-emitting unit 151 penetrates into the target site varies according to the wavelength band, intensity, etc. of the light emitted from the light-emitting unit 151. That is, the detection device 1 can accurately detect the desired biological information by adjusting at least one of the wavelength band, intensity, etc. of the light emitted from the light-emitting unit 151.

[0064] In Figure 1 and Figure 2 In the example shown, the light-emitting unit 151 is provided on the base 11. In addition, in this example, the height of the upper surface of the light-emitting unit 151 is higher than the height of the bottom surface of the cover 13. Here, the upper surface of the light-emitting unit 151 is the uppermost surface among the surfaces of the light-emitting unit 151. In addition, when the uppermost surface among the surfaces of the light-emitting unit 151 does not coincide with the light-emitting surface that emits light in the light-emitting unit 151, the upper surface of the light-emitting unit 151 refers to this light-emitting surface. When the height of the upper surface of the light-emitting unit 151 is higher than the height of the bottom surface of the cover 13, in the detection device 1, as long as the light emitted from the light-emitting unit 151 does not reflect, it will not advance in the direction toward the base 11. Moreover, as described above, the cover 13 is an opaque component. Therefore, in this case, in the detection device 1, the amount of light irradiated from the light-emitting unit 151 to the acceleration detection unit 12 can be reduced. As a result, the detection device 1 can suppress the heating of the acceleration detection unit 12 caused by the incidence of light. In addition, the height of the upper surface of the light-emitting unit 151 may also be the same as the height of the bottom surface of the cover 13. Even in this case, in the detection device 1, the amount of light irradiated from the light-emitting unit 151 to the acceleration detection unit 12 can be reduced. In addition, the light-emitting unit 151 may also be structured to be provided on the base 11 with a component such as a spacer in between.

[0065] The light-receiving unit 152 is a light-receiving element, a light-receiving device, etc. that receive light. When the detection device 1 is installed at the target site, the light-receiving unit 152 receives at least a part of the light emitted from the light-emitting unit 151 and reflected inside the target site. The light-receiving unit 152 outputs information indicating the amount of received light as information indicating the intensity of the received light to the control unit 14.

[0066] Here, the aforementioned control unit 14 detects the biological information of the first user based on the intensity of the light received by the light-receiving unit 152. In such detection of biological information, the control unit 14 corrects the biological information corresponding to the body movement of the first user detected based on the output from the acceleration detection unit 12. Such correction of biological information refers to, but is not limited to, stopping the detection of biological information when the body movement of the first user is a body movement of a predetermined type, removing noise inferred to be generated when the body movement of the first user is a body movement of a predetermined type from the biological information, etc. In addition, the stopping of the detection of biological information when the body movement of the first user is a body movement of a predetermined type is achieved by methods such as the control unit 14 stopping the acquisition of information output from the light-receiving unit 152 and the light-emitting unit 151 stopping the emission of light, but it can also be achieved by methods other than these.

[0067] In Figure 1 and Figure 2 In the example shown, both the light-receiving unit 152 and the light-emitting unit 151 are provided on the base 11. Additionally, in this example, the height of the upper surface of the light-receiving unit 152 is the same as the height of the upper surface of the light-emitting unit 151. Additionally, the height of the upper surface of the light-receiving unit 152 can also be a height different from the height of the upper surface of the light-emitting unit 151. In Figure 1In [the figure], the light-receiving part 152 is hidden behind the light-emitting part 151 and cannot be seen. Additionally, the light-receiving part 152 may also be structured to be disposed on the base 11 with components such as spacers interposed therebetween. When the height of the upper surface of the light-receiving part 152 is different from the height of the upper surface of the light-emitting part 151, the detection device 1 can suppress at least a part of the light emitted from the light-emitting part 151 and directed toward the light-receiving part 152 from directly entering the light-receiving part 152 and being received by the light-receiving part 152. For example, when the upper surface of the light-emitting part 151 is higher than the upper surface of the light-receiving part 152, most of the light emitted from the light-emitting part 151 travels upward rather than toward the light-receiving part 152. On the other hand, for example, when the upper surface of the light-emitting part 151 is lower than the upper surface of the light-receiving part 152, at least a part of the light emitted from the light-emitting part 151 and directed toward the light-receiving part 152 is reflected on the side surface of the light-receiving part 152 and does not reach the light-receiving element of the light-receiving part 152. Therefore, in this case, the detection device 1 can suppress at least a part of the light emitted from the light-emitting part 151 and directed toward the light-receiving part 152 from directly entering the light-receiving part 152 and being received by the light-receiving part 152. In the detection device 1, the structure may be such that a difference in the height of the upper surfaces of the light-emitting part 151 and the light-receiving part 152, which are provided on the same component, is generated by a spacer or the like, or the structure may be generated by using the light-emitting part 151 and the light-receiving part 152 having different heights from each other.

[0068] In addition, in Figure 1 and Figure 2 In the example shown, the light-receiving part 152 is disposed on the base 11 in a manner arranged in the direction A2 intersecting the direction A1 with the light-emitting part 151. In the present disclosure, as an example, as Figure 1 and Figure 2 shown, the case where the direction A2 coincides with the positive direction of the X-axis will be described. In this case, the aforementioned control part 14 extends in the direction A2 in this example. The direction A2 is an example of each of the second direction and the arrangement direction.

[0069] In addition, in Figure 1 and Figure 2 In the example shown, the light-receiving part 152 is disposed on the base 11 in a manner arranged in the direction A3 intersecting the direction A1 and the direction A2 respectively with the control part 14. In the present disclosure, as an example, as Figure 1 and Figure 2 shown, the case where the direction A3 coincides with the positive direction of the Y-axis will be described. The direction A3 is an example of each of the third direction and the width direction.

[0070] In addition, the biological information detection unit 15 may also have the following structure: It further has a processor (not shown), and the processor detects the biological information of the first user based on the temporal change in the amount of light received by the light receiving unit 152. When the processor detects the biological information, it outputs the detected biological information to the control unit 14. That is, in this case, the control unit 14 does not obtain the information output from the light receiving unit 152, but obtains the biological information output from this processor. That is, in this case, the control unit 14 does not perform the detection of biological information. Therefore, this processor is connected to the light receiving unit 152 and the control unit 14 in a communicable manner respectively.

[0071] The storage unit 16 stores the base 11, the acceleration detection unit 12, the lid 13, the control unit 14, and the biological information detection unit 15. The storage unit 16 is, for example, a container having an overall rectangular parallelepiped shape. In this case, the storage unit 16 is composed of a first component 161 and a second component 162, for example.

[0072] The first component 161 is a component that stores the base 11, the acceleration detection unit 12, the lid 13, the control unit 14, and the biological information detection unit 15 and forms a recess with an upper opening. Among the side walls of the first component 161, the side wall on the positive X-axis direction side is a component that covers the front surface of the interior of the detection device 1 and is Figure 1 a component omitted in

[0073] The second component 162 is made of glass and is a rectangular flat plate-shaped component that plugs the recess of the first component 161 from above. The second component 162 is bonded to the first component 161 by an adhesive 163. The second component 162 may also be structured to be assembled to the first component 161 without using the adhesive 163. In addition, the second component 162 is a component that comes into contact with the skin of the object part when the detection device 1 is installed on the object part. In addition, the second component 162 is a component that covers the upper surface of the interior of the detection device 1 and is Figure 2 a component omitted in Figure 2 In addition, in

[0074] the adhesive 163 is also omitted together with the second component 162. In addition, for example, when the recess of the first component 161 is filled with a transparent resin, the storage unit 16 may also be structured without the second component 162. That is, the storage unit 16 may also be composed of the first component 161 and this resin.

[0075] As described above, in Figure 1 and Figure 2 in the detection device 1 shown, the height of the upper surface of the light emitting unit 151 is higher than the height of the bottom surface of the lid unit 13. Thereby, the detection device 1 can reduce the amount of light irradiated from the light emitting unit 151 to the acceleration detection unit 12. As a result, the detection device 1 can suppress heating of the acceleration detection unit 12 due to the incidence of light. Further, in Figure 1 and Figure 2 in the detection device 1 shown, the acceleration detection unit 12 and the biological information detection unit 15 are housed in the housing unit 16. Thereby, compared with the case where the biological information detection unit 15 and the acceleration detection unit 12 are housed in respective housing units, the detection device 1 can be miniaturized. That is, the detection device 1 can suppress heating of the acceleration detection unit 12 due to the incidence of light while being miniaturized.

[0076] Further, in the first embodiment, both the height of the upper surface of the light emitting unit 151 and the height of the upper surface of the light receiving unit 152 are lower than the height of the upper surface of the control unit 14. In this case, the detection device 1 can make the thickness in the direction A1 thinner, and as a result, can be miniaturized as a whole. In order to obtain such an effect, both the height of the upper surface of the light emitting unit 151 and the height of the upper surface of the light receiving unit 152 may be the same as the height of the upper surface of the control unit 14. In the detection device 1, when such an effect may not be obtained, at least one of the height of the upper surface of the light emitting unit 151 and the height of the upper surface of the light receiving unit 152 may be higher than the height of the upper surface of the control unit 14.

[0077] <First Modification of the First Embodiment>

[0078] In the first modification of the first embodiment, both the light emitting unit 151 and the light receiving unit 152 are provided on the lid unit 13. Figure 3 is a front view showing a first modification of the structure of the detection device 1. Figure 4 is Figure 3 a top view of the detection device 1 shown. Further, in Figure 3 , in order to clearly show the internal structure of the detection device 1, the components covering the front surface of the inside of the detection device 1 are omitted. Further, in Figure 4 , in order to clearly show the internal structure of the detection device 1, the components covering the upper surface of the inside of the detection device 1 are omitted.

[0079] In Figure 3 and Figure 4In the example shown, the light-emitting unit 151 is provided on the cover unit 13. Therefore, in this example, the height of the upper surface of the light-emitting unit 151 is also higher than the height of the bottom surface of the cover unit 13. Thus, in this case, in the detection device 1, the amount of light irradiated from the light-emitting unit 151 to the acceleration detection unit 12 can also be reduced. As a result, the detection device 1 can suppress the heating of the acceleration detection unit 12 due to the incidence of light. Additionally, the light-emitting unit 151 may be structured to be provided on the cover unit 13 with a component such as a spacer in between.

[0080] In addition, in Figure 3 and Figure 4 in the example shown, both the light-receiving unit 152 and the light-emitting unit 151 are provided on the cover unit 13. Additionally, in this example, the height of the upper surface of the light-receiving unit 152 is also the same as the height of the upper surface of the light-emitting unit 151. Additionally, the height of the upper surface of the light-receiving unit 152 may also be different from the height of the upper surface of the light-emitting unit 151. In Figure 3 the light-receiving unit 152 is hidden behind the light-emitting unit 151 and cannot be seen. Additionally, the light-receiving unit 152 may be structured to be provided on the cover unit 13 with a component such as a spacer in between.

[0081] In addition, in Figure 3 and Figure 4 in the example shown, the light-receiving unit 152 is provided on the cover unit 13 in a manner arranged with the light-emitting unit 151 in the direction A2.

[0082] In addition, in Figure 3 and Figure 4 in the example shown, the light-receiving unit 152 is provided on the cover unit 13 in a manner arranged with the control unit 14 in the direction A3.

[0083] As described above, in Figure 3 and Figure 4 in the detection device 1 shown, the height of the upper surface of the light-emitting unit 151 is also higher than the height of the bottom surface of the cover unit 13. Thus, the detection device 1 can reduce the amount of light irradiated from the light-emitting unit 151 to the acceleration detection unit 12. As a result, the detection device 1 can suppress the heating of the acceleration detection unit 12 due to the incidence of light. Additionally, in Figure 3 and Figure 4 in the detection device 1 shown, the acceleration detection unit 12 and the biological information detection unit 15 are also housed in the housing unit 16. Thus, compared with the case where the biological information detection unit 15 and the acceleration detection unit 12 are housed in their respective housing units, the detection device 1 can be miniaturized. That is, the detection device 1 can be miniaturized while suppressing the heating of the acceleration detection unit 12 due to the incidence of light.

[0084] In addition, in the first modification of the first embodiment, the heights of the upper surfaces of both the light-emitting unit 151 and the light-receiving unit 152 are lower than the height of the upper surface of the control unit 14. In this case, the detection device 1 can reduce the thickness in the direction A1, and as a result, the overall size can be reduced. To achieve such an effect, the heights of the upper surfaces of both the light-emitting unit 151 and the light-receiving unit 152 may be the same as the height of the upper surface of the control unit 14. In the detection device 1, when such an effect is not required, at least one of the height of the upper surface of the light-emitting unit 151 and the height of the upper surface of the light-receiving unit 152 may be higher than the height of the upper surface of the control unit 14.

[0085] <Second Modification of the First Embodiment>

[0086] In the second modification of the first embodiment, both the light-emitting unit 151 and the light-receiving unit 152 are provided on the control unit 14. Figure 5 It is a front view showing a second modification of the structure of the detection device 1. Figure 6 Is Figure 5 The top view of the detection device 1 shown. In addition, in Figure 5 In order to clearly show the internal structure of the detection device 1, the components covering the front surface of the inside of the detection device 1 are omitted. In addition, in Figure 6 In order to clearly show the internal structure of the detection device 1, the components covering the upper surface of the inside of the detection device 1 are omitted.

[0087] In Figure 5 And Figure 6 In the example shown, the light-emitting unit 151 is provided on the control unit 14. Therefore, in this example, the height of the upper surface of the light-emitting unit 151 is also higher than the height of the bottom surface of the cover unit 13. Therefore, in this case, in the detection device 1, the amount of light irradiated from the light-emitting unit 151 to the acceleration detection unit 12 can also be reduced. As a result, the detection device 1 can suppress the heating of the acceleration detection unit 12 due to the incidence of light. In addition, the light-emitting unit 151 may be structured to be provided on the control unit 14 with components such as a spacer in between.

[0088] In addition, in Figure 5 And Figure 6 In the example shown, both the light-receiving unit 152 and the light-emitting unit 151 are provided on the control unit 14. In addition, in this example, the height of the upper surface of the light-receiving unit 152 is the same as the height of the upper surface of the light-emitting unit 151. In addition, the height of the upper surface of the light-receiving unit 152 may be different from the height of the upper surface of the light-emitting unit 151. In Figure 5In [the figure], the light-receiving unit 152 is hidden behind the light-emitting unit 151 and cannot be seen. Additionally, the light-receiving unit 152 may be structured to be disposed on the control unit 14 with components such as spacers interposed therebetween.

[0089] In addition, in Figure 5 and Figure 6 In the example shown, the light-receiving unit 152 is disposed on the control unit 14 in a manner arranged with the light-emitting unit 151 in the direction A2.

[0090] As described above, in Figure 5 and Figure 6 In the detection device 1 shown, the height of the upper surface of the light-emitting unit 151 is also a height above the bottom surface of the cover unit 13. Thus, the detection device 1 can reduce the amount of light irradiated from the light-emitting unit 151 to the acceleration detection unit 12. As a result, the detection device 1 can suppress the heating of the acceleration detection unit 12 due to the incidence of light. In addition, in Figure 5 and Figure 6 In the detection device 1 shown, the acceleration detection unit 12 and the biological information detection unit 15 are also housed in the housing unit 16. Thus, compared with the case where the biological information detection unit 15 and the acceleration detection unit 12 are housed in their respective housing units, the detection device 1 can be miniaturized. That is, the detection device 1 can be miniaturized while suppressing the heating of the acceleration detection unit 12 due to the incidence of light.

[0091] <Third Modification Example of the First Embodiment>

[0092] In the third modification example of the first embodiment, the size of the light-emitting unit 151 is different from the size of the light-receiving unit 152. Figure 7 is a front view showing the structure of the third modification example of the detection device 1. Figure 8 is Figure 7 a top view of the detection device 1 shown. In addition, in Figure 7 , in order to clearly show the internal structure of the detection device 1, the components covering the front surface of the inside of the detection device 1 are omitted. In addition, in Figure 8 , in order to clearly show the internal structure of the detection device 1, the components covering the upper surface of the inside of the detection device 1 are omitted.

[0093] In Figure 7 and Figure 8 In the example shown, the light-emitting unit 151 and the light-receiving unit 152 are both disposed on the base unit 11 in the same manner as in the examples shown in Figure 1 and Figure 2 However, different from the first embodiment, in Figure 7In [it], a part of the light-receiving portion 152 located behind the light-emitting portion 151 can be seen. This is because, when observing in the direction A2, the size of the light-receiving portion 152 is larger than that of the light-emitting portion 151. In addition, in Figure 8 when observing in the direction opposite to the direction A1, it can be known that the size of the light-receiving portion 152 is also larger than that of the light-emitting portion 151. In addition, the size relationship between the light-emitting portion 151 and the light-receiving portion 152 can also be reversed.

[0094] Here, in Figure 7 and Figure 8 In the example shown, the height of the upper surface of the light-emitting portion 151 is also higher than the height of the bottom surface of the cover portion 13. Therefore, in this case, in the detection device 1, the amount of light irradiated from the light-emitting portion 151 to the acceleration detection portion 12 can also be reduced. That is, in the detection device 1, if the height of the upper surface of the light-emitting portion 151 is higher than the height of the bottom surface of the cover portion 13, the heating of the acceleration detection portion 12 caused by the incidence of light can be suppressed regardless of the size relationship between the light-emitting portion 151 and the light-receiving portion 152. In addition, in Figure 7 and Figure 8 In the example shown, both the light-emitting portion 151 and the light-receiving portion 152 can be structures provided on the cover portion 13 instead of being provided on the base portion 11, or can be structures provided on the control portion 14.

[0095] As described above, in Figure 7 and Figure 8 In the detection device 1 shown, the height of the upper surface of the light-emitting portion 151 is also higher than the height of the bottom surface of the cover portion 13. Thus, the detection device 1 can reduce the amount of light irradiated from the light-emitting portion 151 to the acceleration detection portion 12. As a result, the detection device 1 can suppress the heating of the acceleration detection portion 12 caused by the incidence of light. In addition, in Figure 7 and Figure 8 In the detection device 1 shown, the acceleration detection portion 12 and the biological information detection portion 15 are also housed in the housing portion 16. Thus, compared with the case where the biological information detection portion 15 and the acceleration detection portion 12 are housed in their respective housing portions, the detection device 1 can be miniaturized. That is, the detection device 1 can be miniaturized while suppressing the heating of the acceleration detection portion 12 caused by the incidence of light.

[0096] <The Fourth Modification of the First Embodiment>

[0097] In the fourth modification of the first embodiment, the light-emitting portion 151 and the light-receiving portion 152 are arranged in the direction A3. Figure 9 is a front view showing the structure of the fourth modification of the detection device 1. Figure 10 is Figure 9 The top view of the detection device 1 shown. In addition, inFigure 9 In [description of Figure 1], in order to clearly show the internal structure of the detection device 1, the components covering the front of the interior of the detection device 1 are omitted. Additionally, in Figure 10 In [description of Figure 2], in order to clearly show the internal structure of the detection device 1, the components covering the upper surface of the interior of the detection device 1 are omitted.

[0098] In Figure 9 and Figure 10 In the example shown, the light emitting unit 151 and the light receiving unit 152 are the same as in the examples shown in Figure 1 and Figure 2 and both are provided on the base 11. However, different from the first embodiment, in Figure 9 and Figure 10 In [description of Figure 3], the light emitting unit 151 and the light receiving unit 152 are not arranged in the direction A2, but are arranged with the light receiving unit 152 in the direction A3. Therefore, when observing in the direction A2, in the detection device 1, in the direction A3, the light emitting unit 151, the light receiving unit 152, and the control unit 14 are arranged in the order of the light receiving unit 152, the light emitting unit 151, and the control unit 14.

[0099] Furthermore, the light emitting unit 151 may also be structured to be arranged on the base 11 in a direction different from the direction A2 and the direction A3 with respect to the light receiving unit 152.

[0100] Alternatively, it may be structured such that both the light emitting unit 151 and the light receiving unit 152 are provided on the cover 13 and are arranged in the direction A2. Additionally, it may also be structured such that both the light emitting unit 151 and the light receiving unit 152 are provided on the cover 13 and are arranged on the cover 13 in directions different from the direction A2 and the direction A3 respectively.

[0101] Alternatively, it may be structured such that both the light emitting unit 151 and the light receiving unit 152 are provided on the control unit 14 and are arranged in the direction A2. Additionally, it may also be structured such that both the light emitting unit 151 and the light receiving unit 152 are provided on the control unit 14 and are arranged on the control unit 14 in directions different from the direction A2 and the direction A3 respectively.

[0102] Here, in Figure 9 and Figure 10In the example shown, the height of the upper surface of the light-emitting unit 151 is also higher than the height of the bottom surface of the lid unit 13. Therefore, in this case, in the detection device 1 as well, the amount of light irradiated from the light-emitting unit 151 to the acceleration detection unit 12 can be reduced. That is, in the detection device 1, as long as the height of the upper surface of the light-emitting unit 151 is higher than the height of the bottom surface of the lid unit 13, regardless of the direction in which the light-emitting unit 151 and the light-receiving unit 152 are arranged on any one of the base unit 11, the lid unit 13, and the control unit 14, heating of the acceleration detection unit 12 caused by the incidence of light can be suppressed.

[0103] As described above, in Figure 9 and Figure 10 In the detection device 1 shown, the height of the upper surface of the light-emitting unit 151 is also higher than the height of the bottom surface of the lid unit 13. Thus, the detection device 1 can reduce the amount of light irradiated from the light-emitting unit 151 to the acceleration detection unit 12. As a result, the detection device 1 can suppress heating of the acceleration detection unit 12 due to the incidence of light. In addition, in Figure 9 and Figure 10 In the detection device 1 shown, the acceleration detection unit 12 and the biological information detection unit 15 are also housed in the housing unit 16. Thus, compared with the case where the biological information detection unit 15 and the acceleration detection unit 12 are housed in their respective housing units, the detection device 1 can be miniaturized. That is, the detection device 1 can be miniaturized while suppressing heating of the acceleration detection unit 12 due to the incidence of light.

[0104] <Fifth Modification of the First Embodiment>

[0105] In the fifth modification of the first embodiment, both the light-emitting unit 151 and the light-receiving unit 152 are provided on the base unit 11, the light-emitting unit 151, the light-receiving unit 152, and the control unit 14 are arranged in the direction A3, and the control unit 14 is located between the light-emitting unit 151 and the light-receiving unit 152 in the direction A3. Figure 11 is a front view showing a fifth modification of the structure of the detection device 1. Figure 12 is Figure 11 a top view of the detection device 1 shown. In addition, in Figure 11 , in order to clearly show the internal structure of the detection device 1, the components covering the front surface of the inside of the detection device 1 are omitted. In addition, in Figure 12 , in order to clearly show the internal structure of the detection device 1, the components covering the upper surface of the inside of the detection device 1 are omitted.

[0106] In Figure 11 and Figure 12 In the example shown, the light-emitting unit 151 and the light-receiving unit 152 are the same as Figure 1 and Figure 2Similarly, in the example shown, both are provided on the base 11. However, different from the first embodiment, in Figure 11 and Figure 12 , the light-emitting part 151 and the light-receiving part 152 are not arranged in the direction A2, but are arranged in the direction A3 with the control part 14 and the light-receiving part 152 in the order of the light-emitting part 151, the control part 14, and the light-receiving part 152. That is, in this example, the control part 14 is located between the light-emitting part 151 and the light-receiving part 152 in the direction A3.

[0107] Here, in Figure 11 and Figure 12 In the example shown, the height of the upper surface of the light-emitting part 151 is also higher than the height of the bottom surface of the cover part 13. Therefore, in this case, in the detection device 1, the amount of light irradiated from the light-emitting part 151 to the acceleration detection part 12 can also be reduced. That is, in the detection device 1, if the height of the upper surface of the light-emitting part 151 is higher than the height of the bottom surface of the cover part 13, even if the light-emitting part 151 and the light-receiving part 152 are arranged on the base 11 with the control part 14 therebetween, the heating of the acceleration detection part 12 due to the incident light can be suppressed.

[0108] In addition, in the case of attempting to miniaturize the detection device 1, preferably, the biological information detection part 15 and the acceleration detection part 12 are arranged in the same housing part 16 as each other as in the detection device 1, and the light-emitting part 151 and the light-receiving part 152 are brought close to each other. However, when the light-emitting part 151 and the light-receiving part 152 are brought close to each other in the housing part 16 in which both the biological information detection part 15 and the acceleration detection part 12 are arranged, a part of the light emitted from the light-emitting part 151 is likely to be received by the light-receiving part 152 as stray light without passing through the inside of the object part. This results in a reduction in the detection accuracy of the biological information of the detection device 1, which is not preferable. In addition, the method of solving this problem by arranging a light-shielding member between the light-emitting part 151 and the light-receiving part 152 sometimes hinders the miniaturization of the detection device 1, and there are many cases where it cannot be adopted.

[0109] However, as in Figure 11 and Figure 12 In the detection device 1 shown, by arranging the light-emitting part 151 and the light-receiving part 152 on the base 11 with the control part 14 therebetween, such a problem is solved in the detection device 1. This is because, in Figure 11 and Figure 12In the example shown, the light from the light-emitting unit 151 that is directed toward the light-receiving unit 152 is reflected by the cover unit 13 and the control unit 14, and it is difficult for the light-receiving unit 152 to receive it as stray light. That is, by arranging the control unit 14 between the light-emitting unit 151 and the light-receiving unit 152 in the direction in which the light-emitting unit 151 and the light-receiving unit 152 are arranged within the housing unit 16, the detection device 1 can reduce the amount of stray light incident on the light-receiving unit 152 while miniaturizing. In addition, since the detection device 1 can reduce the amount of stray light incident on the light-receiving unit 152 in this way, there is no need to provide a light-shielding member that blocks light so that stray light does not enter the light-receiving unit 152. As a result, the detection device 1 can be miniaturized more reliably.

[0110] As described above, in Figure 11 and Figure 12 the detection device 1 shown, the height of the upper surface of the light-emitting unit 151 is also a height that is equal to or greater than the height of the bottom surface of the cover unit 13. Thereby, the detection device 1 can reduce the amount of light irradiated from the light-emitting unit 151 to the acceleration detection unit 12. As a result, the detection device 1 can suppress the heating of the acceleration detection unit 12 due to the incident light. In addition, in Figure 11 and Figure 12 the detection device 1 shown, the acceleration detection unit 12 and the biological information detection unit 15 are also housed in the housing unit 16. Thereby, compared with the case where the biological information detection unit 15 and the acceleration detection unit 12 are housed in respective housing units, the detection device 1 can be miniaturized. That is, the detection device 1 can suppress the heating of the acceleration detection unit 12 due to the incident light while miniaturizing. And, in Figure 11 and Figure 12 the detection device 1 shown, the control unit 14 is arranged between the light-emitting unit 151 and the light-receiving unit 152 in the direction in which the light-emitting unit 151 and the light-receiving unit 152 are arranged. Thereby, the detection device 1 can reduce the amount of stray light incident on the light-receiving unit 152 while miniaturizing.

[0111] <Sixth Modification of the First Embodiment>

[0112] In the sixth modification of the first embodiment, both the light-emitting unit 151 and the light-receiving unit 152 are provided on the cover unit 13, the light-emitting unit 151, the light-receiving unit 152, and the control unit 14 are arranged in the direction A3, and the control unit 14 is located between the light-emitting unit 151 and the light-receiving unit 152 in the direction A3. Figure 13 is a front view showing a sixth modification of the structure of the detection device 1. Figure 14 is Figure 13 a top view of the detection device 1 shown. In addition, in Figure 13 , in order to clearly show the internal structure of the detection device 1, the components covering the front of the inside of the detection device 1 are omitted. In addition, in Figure 14In order to clearly show the internal structure of the detection device 1, the component covering the upper surface of the interior of the detection device 1 is omitted.

[0113] In Figure 11 and Figure 12 In the example shown, the light emitting unit 151 and the light receiving unit 152 are the same as those in the example shown in Figure 3 and Figure 4 and are both provided on the lid portion 13. However, different from the first modification of the first embodiment, in Figure 13 and Figure 14 , the light emitting unit 151 and the light receiving unit 152 are not arranged in the direction A2, but are arranged in the direction A3 with the control unit 14 and the light receiving unit 152 in the order of the light emitting unit 151, the control unit 14, and the light receiving unit 152. That is, in this example, the control unit 14 is located between the light emitting unit 151 and the light receiving unit 152 in the direction A3.

[0114] Here, in Figure 13 and Figure 14 In the example shown, the height of the upper surface of the light emitting unit 151 is also higher than the height of the bottom surface of the lid portion 13. Therefore, in this case, in the detection device 1, the amount of light irradiated from the light emitting unit 151 to the acceleration detection unit 12 can also be reduced. That is, in the detection device 1, if the height of the upper surface of the light emitting unit 151 is higher than the height of the bottom surface of the lid portion 13, even if the light emitting unit 151 and the light receiving unit 152 are arranged on the lid portion 13 with the control unit 14 therebetween, the heating of the acceleration detection unit 12 due to the incident light can be suppressed.

[0115] In addition, in Figure 13 and Figure 14 In the example shown, the light emitting unit 151 and the light receiving unit 152 are also provided on the lid portion 13 with the control unit 14 therebetween. Thus, in this example, the light from the light emitting unit 151 that is directed toward the light receiving unit 152 is reflected by the control unit 14 and is less likely to be received by the light receiving unit 152 as stray light. That is, the detection device 1 can reduce the amount of stray light incident on the light receiving unit 152 while miniaturizing by arranging the control unit 14 between the light emitting unit 151 and the light receiving unit 152 in the direction in which the light emitting unit 151 and the light receiving unit 152 are arranged in the storage portion 16. In addition, since the detection device 1 can reduce the amount of stray light incident on the light receiving unit 152 in this way, there is no need to provide a light shielding member that blocks light so that stray light does not enter the light receiving unit 152. As a result, the detection device 1 can be miniaturized more reliably.

[0116] As described above, in Figure 13 and Figure 14In the detection device 1 shown, the height of the upper surface of the light-emitting unit 151 is also a height that is equal to or greater than the height of the bottom surface of the cover unit 13. As a result, the detection device 1 can reduce the amount of light irradiated from the light-emitting unit 151 to the acceleration detection unit 12. As a result, the detection device 1 can suppress the heating of the acceleration detection unit 12 due to the incidence of light. In addition, in Figure 13 and Figure 14 In the detection device 1 shown, the acceleration detection unit 12 and the biological information detection unit 15 are also housed in the housing unit 16. As a result, compared with the case where the biological information detection unit 15 and the acceleration detection unit 12 are housed in their respective housing units, the detection device 1 can be miniaturized. That is, the detection device 1 can suppress the heating of the acceleration detection unit 12 due to the incidence of light while being miniaturized. And, in Figure 13 and Figure 14 In the detection device 1 shown, the control unit 14 is also provided between the light-emitting unit 151 and the light-receiving unit 152 in the direction in which the light-emitting unit 151 and the light-receiving unit 152 are arranged. As a result, the detection device 1 can reduce the amount of stray light incident on the light-receiving unit 152 while being miniaturized.

[0117] <The seventh modification of the first embodiment>

[0118] In the seventh modification of the first embodiment, both the light-emitting unit 151 and the light-receiving unit 152 are provided on the base unit 11, the light-emitting unit 151 and the control unit 14 are arranged in the direction A3, and the light-receiving unit 152 and the control unit 14 are arranged in the direction A2. Figure 15 is a front view showing the seventh modification of the structure of the detection device 1. Figure 16 is Figure 15 a top view of the detection device 1 shown. In addition, in Figure 15 , in order to clearly show the internal structure of the detection device 1, the components covering the front surface of the inside of the detection device 1 are omitted. In addition, in Figure 16 , in order to clearly show the internal structure of the detection device 1, the components covering the upper surface of the inside of the detection device 1 are omitted.

[0119] In Figure 15 and Figure 16 In the examples shown, the light-emitting unit 151 and the light-receiving unit 152 are the same as in the examples shown in Figure 1 and Figure 2 and are both provided on the base unit 11. However, different from the first embodiment, in Figure 15 and Figure 16 , the light-emitting unit 151 is not arranged with the light-receiving unit 152 in the direction A2, but is arranged with the control unit 14 in the direction A3. In addition, in Figure 15 and Figure 16 , the light-receiving unit 152 is arranged with the control unit 14 in the direction A2.

[0120] Here, in Figure 15 and Figure 16 In the example shown, the height of the upper surface of the light-emitting unit 151 is also higher than the height of the bottom surface of the lid unit 13. Therefore, in this case, in the detection device 1, the amount of light irradiated from the light-emitting unit 151 to the acceleration detection unit 12 can also be reduced. That is, in the detection device 1, if the height of the upper surface of the light-emitting unit 151 is higher than the height of the bottom surface of the lid unit 13, even if the light-emitting unit 151 and the control unit 14 are arranged in the direction A3, and the light-receiving unit 152 and the control unit 14 are arranged in the direction A2, heating of the acceleration detection unit 12 due to the incidence of light can be suppressed.

[0121] In addition, in Figure 15 and Figure 16 In the example shown, when viewed in the direction A2, the light-emitting unit 151 does not overlap with both the lid unit 13 and the light-receiving unit 152. On the other hand, in this example, when viewed in the direction A2, the light-receiving unit 152 overlaps with the lid unit 13. In addition, in this example, when viewed in the direction A1, the light-emitting unit 151 overlaps with the lid unit 13, and the light-emitting unit 151 does not overlap with the light-receiving unit 152. Therefore, at least a part of the light emitted from the light-emitting unit 151 toward the light-receiving unit 152 is reflected by the lid unit 13, and it is difficult for the light-receiving unit 152 to receive it as stray light. That is, the detection device 1 is provided with a biological information detection unit 15 and an acceleration detection unit 12 in the storage unit 16, the light-emitting unit 151 and the control unit 14 are arranged in the direction A3, and the light-receiving unit 152 and the control unit 14 are arranged in the direction A2, so that the amount of stray light incident on the light-receiving unit 152 can be reduced while miniaturizing. In addition, the farther the distance between the light-emitting unit 151 and the light-receiving unit 152, the greater this effect. Therefore, in this example, it is preferable that the light-emitting unit 151 and the light-receiving unit 152 are separated.

[0122] As described above, in Figure 15 and Figure 16 In the detection device 1 shown, the height of the upper surface of the light-emitting unit 151 is also higher than the height of the bottom surface of the lid unit 13. Thus, the detection device 1 can reduce the amount of light irradiated from the light-emitting unit 151 to the acceleration detection unit 12. As a result, the detection device 1 can suppress heating of the acceleration detection unit 12 due to the incidence of light. In addition, in Figure 15 and Figure 16In the detection device 1 shown, the acceleration detection unit 12 and the biological information detection unit 15 are also housed in the housing unit 16. Thus, compared with the case where the biological information detection unit 15 and the acceleration detection unit 12 are housed in their respective housing units, the detection device 1 can be miniaturized. That is, the detection device 1 can be miniaturized while suppressing the heating of the acceleration detection unit 12 caused by the incidence of light. And, in Figure 15 and Figure 16 In the detection device 1 shown, at least a part of the light from the light emitting unit 151 that is directed toward the light receiving unit 152 is reflected by the cover unit 13 and is less likely to be received by the light receiving unit 152 as stray light. Thus, the detection device 1 can reduce the amount of stray light incident on the light receiving unit 152 while being miniaturized.

[0123] <Eighth Modification of the First Embodiment>

[0124] In the eighth modification of the first embodiment, both the light emitting unit 151 and the light receiving unit 152 are provided on the cover unit 13. The light emitting unit 151 and the control unit 14 are arranged in the direction A3, and the light receiving unit 152 and the control unit 14 are arranged in the direction A2. Figure 17 It is a front view showing the eighth modification of the structure of the detection device 1. Figure 18 is Figure 17 A top view of the detection device 1 shown. In addition, in Figure 17 , in order to clearly show the internal structure of the detection device 1, the components covering the front of the inside of the detection device 1 are omitted. Also, in Figure 18 , in order to clearly show the internal structure of the detection device 1, the components covering the upper surface of the inside of the detection device 1 are omitted.

[0125] In Figure 17 and Figure 18 In the example shown, the light emitting unit 151 and the light receiving unit 152 are both provided on the cover unit 13 as in the example shown in Figure 3 and Figure 4 However, different from the first modification of the first embodiment, in Figure 17 and Figure 18 , the light emitting unit 151 is not arranged with the light receiving unit 152 in the direction A2, but is arranged with the control unit 14 in the direction A3. Also, in Figure 17 and Figure 18 , the light receiving unit 152 and the control unit 14 are arranged in the direction A2.

[0126] Here, in Figure 17 and Figure 18In the example shown, the height of the upper surface of the light-emitting unit 151 is also higher than the height of the bottom surface of the lid unit 13. Therefore, in this case, in the detection device 1, the amount of light irradiated from the light-emitting unit 151 to the acceleration detection unit 12 can also be reduced. That is, in the detection device 1, if the height of the upper surface of the light-emitting unit 151 is higher than the height of the bottom surface of the lid unit 13, even if the light-emitting unit 151 and the control unit 14 are arranged in the direction A3 and the light-receiving unit 152 and the control unit 14 are arranged in the direction A2, heating of the acceleration detection unit 12 due to light incidence can be suppressed.

[0127] In addition, in Figure 17 and Figure 18 In the example shown, when viewed in the direction A2, the light-emitting unit 151 does not overlap with both the control unit 14 and the light-receiving unit 152. On the other hand, in this example, when viewed in the direction A2, the light-receiving unit 152 overlaps with the control unit 14. In addition, in this example, when viewed in the direction A1, the light-emitting unit 151 overlaps with the control unit 14, and the light-emitting unit 151 does not overlap with the light-receiving unit 152. Therefore, at least a part of the light from the light-emitting unit 151 directed toward the light-receiving unit 152 is reflected by the control unit 14 and is difficult to be received by the light-receiving unit 152 as stray light. That is, the detection device 1 is provided with the biological information detection unit 15 and the acceleration detection unit 12 in the housing unit 16, the light-emitting unit 151 and the control unit 14 are arranged in the direction A3, and the light-receiving unit 152 and the control unit 14 are arranged in the direction A2, so that the amount of stray light incident on the light-receiving unit 152 can be reduced while miniaturization is achieved.

[0128] As described above, in Figure 17 and Figure 18 In the detection device 1 shown, the height of the upper surface of the light-emitting unit 151 is also higher than the height of the bottom surface of the lid unit 13. Thereby, the detection device 1 can reduce the amount of light irradiated from the light-emitting unit 151 to the acceleration detection unit 12. As a result, the detection device 1 can suppress heating of the acceleration detection unit 12 due to light incidence. In addition, in Figure 17 and Figure 18 In the detection device 1 shown, the acceleration detection unit 12 and the biological information detection unit 15 are also housed in the housing unit 16. Thereby, compared with the case where the biological information detection unit 15 and the acceleration detection unit 12 are housed in respective housing units, the detection device 1 can be miniaturized. That is, the detection device 1 can suppress heating of the acceleration detection unit 12 due to light incidence while being miniaturized. And, in Figure 17 and Figure 18In the detection device 1 shown, at least a part of the light emitted from the light-emitting unit 151 and directed toward the light-receiving unit 152 is reflected by the control unit 14, and it is difficult for the light-receiving unit 152 to receive it as stray light. As a result, the detection device 1 can reduce the amount of stray light incident on the light-receiving unit 152 while miniaturizing itself.

[0129] In addition, in the first embodiment, the first to eighth modification examples of the first embodiment described above, the positional relationship between the light-emitting unit 151 and the light-receiving unit 152 may be reversed. Further, in the first embodiment, the first to eighth modification examples of the first embodiment described above, the shapes of the light-emitting unit 151 and the light-receiving unit 152 may be any shapes, may be different from each other, or may be the same as each other. Additionally, the first embodiment, the first to eighth modification examples of the first embodiment described above may be arbitrarily combined with each other.

[0130] <Second Embodiment>

[0131] Hereinafter, the second embodiment will be described with reference to the drawings.

[0132] <Outline of the Detection Device of the Second Embodiment>

[0133] First, the outline of the detection device of the second embodiment will be described.

[0134] The detection device of the second embodiment is installed at a predetermined part of the subject. In this detection device, a predetermined first direction is regarded as the upward direction. In addition, this detection device includes a base, an acceleration detection unit, a cover part, a control unit, a light-emitting unit, a light-receiving unit, and a storage part. The base has a surface perpendicular to the first direction. The acceleration detection unit is provided on the base. The cover part covers the base and the acceleration detection unit together on the base. The control unit is provided on the cover part and detects the body movement of the subject based on the output of the acceleration detection unit when the detection device is installed at this part. The light-emitting unit emits light. The light-receiving unit receives light. The storage part stores the base, the acceleration detection unit, the cover part, the control unit, the light-emitting unit, and the light-receiving unit. Moreover, the height of the upper surface of the light-emitting unit in the first direction is different from the height of the upper surface of the light-receiving unit in the first direction. In addition, the light-emitting unit and the light-receiving unit are provided on different components. As a result, this detection device can suppress at least a part of the light emitted from the light-emitting unit and directed toward the light-receiving unit from directly entering the light-receiving unit and being received by the light-receiving unit.

[0135] Hereinafter, the structure of the detection device of the second embodiment will be described in detail. In addition, in the second embodiment, the same reference numerals are given to the same structural parts as those in the first embodiment and the description thereof is omitted.

[0136] <Structure of the Detection Device of the Second Embodiment>

[0137] Hereinafter, taking the detection device 2 as an example, the structure of the detection device according to the second embodiment will be described. In the second embodiment, for ease of explanation, the case of observing the detection device 2 in a certain direction is described as the case of observing from that direction.

[0138] The detection device 2 has the same structure as the detection device 1 except that the light emitting unit 151 and the light receiving unit 152 are provided on different components from each other. Figure 19 This is a front view showing an example of the structure of the detection device 2. Figure 20 This is Figure 19 a top view of the detection device 2 shown. In addition, in Figure 19 , in order to clearly show the internal structure of the detection device 2, the components covering the front surface of the inside of the detection device 2 are omitted. Also, in Figure 20 , in order to clearly show the internal structure of the detection device 2, the components covering the upper surface of the inside of the detection device 2 are omitted.

[0139] In Figure 19 and Figure 20 the example shown, the light emitting unit 151 is provided on the base 11. On the other hand, in this example, the light receiving unit 152 is provided on the cover 13. Therefore, in this example, the height of the upper surface of the light receiving unit 152 is higher than the height of the upper surface of the light emitting unit 151. As a result, in the detection device 2, at least a part of the light emitted from the light emitting unit 151 and directed toward the light receiving unit 152 is reflected by the side surface of the cover 13 and the side surface of the light receiving unit 152 respectively and does not reach the light receiving element included in the light receiving unit 152. Thus, the detection device 2 can suppress at least a part of the light emitted from the light emitting unit 151 and directed toward the light receiving unit 152 from directly entering the light receiving unit 152 and being received by the light receiving unit 152.

[0140] In addition, in Figure 19 and Figure 20 the example shown, the positional relationship between the light emitting unit 151 and the light receiving unit 152 may be reversed. In this case, the height of the upper surface of the light emitting unit 151 is higher than the height of the upper surface of the light receiving unit 152. As a result, in the detection device 2, most of the light emitted from the light emitting unit 151 does not go toward the light receiving unit 152 but advances upward. Thus, the detection device 2 can also suppress at least a part of the light emitted from the light emitting unit 151 and directed toward the light receiving unit 152 from directly entering the light receiving unit 152 and being received by the light receiving unit 152.

[0141] Here, in Figure 19 and Figure 20In the example shown, the light emitting unit 151, the light receiving unit 152, and the control unit 14 are arranged in the direction A3 in the order of the light emitting unit 151, the light receiving unit 152, and the control unit 14. However, in the detection device 2, the effect of suppressing at least a part of the light emitted from the light emitting unit 151 and directed toward the light receiving unit 152 from being received by the light receiving unit 152 is obtained by making the height of the upper surface of the light receiving unit 152 different from the height of the upper surface of the light emitting unit 151 regardless of the arrangement order of the light emitting unit 151, the light receiving unit 152, and the control unit 14 in the direction A3.

[0142] In addition, the light emitting unit 151 may also be structured to be provided on the base portion 11 with a spacer or the like interposed therebetween. In addition, the light receiving unit 152 may also be structured to be provided on the cover portion 13 with a spacer or the like interposed therebetween.

[0143] In Figure 19 and Figure 20 In the example shown, the height of the upper surface of the light emitting unit 151 is also higher than the height of the bottom surface of the cover portion 13. Therefore, in this case, in the detection device 2, the amount of light irradiated from the light emitting unit 151 to the acceleration detection unit 12 can also be reduced. As a result, the detection device 2 can suppress the heating of the acceleration detection unit 12 due to the incidence of light.

[0144] In addition, in Figure 19 and Figure 20 In the example shown, the biological information detection unit 15 is also housed in the housing unit 16 together with the acceleration detection unit 12. Therefore, in the detection device 2, miniaturization can be achieved as compared with the case where the biological information detection unit 15 and the acceleration detection unit 12 are housed in their respective housing units.

[0145] In addition, in Figure 19 and Figure 20 In the example shown, both the height of the upper surface of the light emitting unit 151 and the height of the upper surface of the light receiving unit 152 are lower than the height of the upper surface of the control unit 14. In this case, the detection device 2 can reduce the thickness in the direction A1, and as a result, the overall size can be reduced. In order to obtain such an effect, both the height of the upper surface of the light emitting unit 151 and the height of the upper surface of the light receiving unit 152 may be the same as the height of the upper surface of the control unit 14.

[0146] As described above, in Figure 19 and Figure 20 In the detection device 2 shown, the height of the upper surface of the light emitting unit 151 is different from the height of the upper surface of the light receiving unit 152. Thereby, the detection device 2 can suppress at least a part of the light emitted from the light emitting unit 151 and directed toward the light receiving unit 152 from being received by the light receiving unit 152. In addition, in Figure 19 andFigure 20 In the detection device 2 shown, the acceleration detection unit 12 and the biological information detection unit 15 are also housed in the housing unit 16. Thus, compared with the case where the biological information detection unit 15 and the acceleration detection unit 12 are housed in their respective housing units, the detection device 2 can be miniaturized. That is, the detection device 2 can reduce the amount of stray light incident on the light receiving unit 152 while being miniaturized.

[0147] <First modification of the second embodiment>

[0148] In the first modification of the second embodiment, the light emitting unit 151 is provided on the base unit 11, while the light receiving unit 152 is provided on the control unit 14. Figure 21 It is a front view showing a first modification of the structure of the detection device 2. Figure 22 Is Figure 21 The top view of the detection device 2 shown. In addition, in Figure 21 In order to clearly show the internal structure of the detection device 2, the components covering the front surface of the inside of the detection device 2 are omitted. In addition, in Figure 22 In order to clearly show the internal structure of the detection device 2, the components covering the upper surface of the inside of the detection device 2 are omitted.

[0149] In Figure 21 And Figure 22 In the example shown, the light emitting unit 151 is provided on the base unit 11 in the same manner as in the second embodiment. On the other hand, in this example, the light receiving unit 152 is provided on the control unit 14. Therefore, in this example, the height of the upper surface of the light receiving unit 152 is also higher than the height of the upper surface of the light emitting unit 151. As a result, in the detection device 2, at least a part of the light emitted from the light emitting unit 151 toward the light receiving unit 152 is reflected by the side surface of the cover unit 13, the side surface of the control unit 14, and the side surface of the light receiving unit 152, and does not reach the light receiving element included in the light receiving unit 152. Thus, the detection device 2 can suppress at least a part of the light emitted from the light emitting unit 151 toward the light receiving unit 152 from directly entering the light receiving unit 152 and being received by the light receiving unit 152.

[0150] In addition, in Figure 21 And Figure 22 In the example shown, the positional relationship between the light emitting unit 151 and the light receiving unit 152 may be reversed. In this case, the height of the upper surface of the light emitting unit 151 is higher than the height of the upper surface of the light receiving unit 152. As a result, in the detection device 2, most of the light emitted from the light emitting unit 151 does not go toward the light receiving unit 152 but advances upward. Thus, the detection device 2 can also suppress at least a part of the light emitted from the light emitting unit 151 toward the light receiving unit 152 from being received by the light receiving unit 152.

[0151] Here, inFigure 21 and Figure 22 In the example shown, the light-emitting unit 151, the light-receiving unit 152, and the control unit 14 are also arranged in the direction A3 in the order of the light-emitting unit 151, the light-receiving unit 152, and the control unit 14. However, in the detection device 2, the effect of suppressing at least a part of the light emitted from the light-emitting unit 151 and directed toward the light-receiving unit 152 from being received by the light-receiving unit 152 is obtained by making the height of the upper surface of the light-receiving unit 152 different from the height of the upper surface of the light-emitting unit 151 regardless of the arrangement order of the light-emitting unit 151, the light-receiving unit 152, and the control unit 14 in the direction A3.

[0152] In addition, the light-emitting unit 151 may also be structured to be provided on the base 11 with a spacer or the like interposed therebetween. In addition, the light-receiving unit 152 may also be structured to be provided on the control unit 14 with a spacer or the like interposed therebetween.

[0153] In Figure 21 and Figure 22 In the example shown, the height of the upper surface of the light-emitting unit 151 is also higher than the height of the bottom surface of the lid unit 13. Therefore, in this case, in the detection device 2, the amount of light irradiated from the light-emitting unit 151 to the acceleration detection unit 12 can also be reduced. As a result, the detection device 2 can suppress the heating of the acceleration detection unit 12 due to the incidence of light.

[0154] In addition, in Figure 21 and Figure 22 In the example shown, the biological information detection unit 15 is also housed in the housing unit 16 together with the acceleration detection unit 12. Therefore, in the detection device 2, miniaturization can be achieved as compared with the case where the biological information detection unit 15 and the acceleration detection unit 12 are housed in their respective housing units.

[0155] As described above, in Figure 21 and Figure 22 In the detection device 2 shown, the height of the upper surface of the light-emitting unit 151 is also different from the height of the upper surface of the light-receiving unit 152. Thereby, the detection device 2 can suppress at least a part of the light emitted from the light-emitting unit 151 and directed toward the light-receiving unit 152 from being received by the light-receiving unit 152. In addition, in Figure 21 and Figure 22 In the detection device 2 shown, the acceleration detection unit 12 and the biological information detection unit 15 are also housed in the housing unit 16. Thereby, as compared with the case where the biological information detection unit 15 and the acceleration detection unit 12 are housed in their respective housing units, the detection device 2 can be miniaturized. That is, the detection device 2 can reduce the amount of stray light incident on the light-receiving unit 152 while being miniaturized.

[0156] <Second Modified Example of the Second Embodiment>

[0157] In the second modification of the second embodiment, the light emitting unit 151 is provided on the cover unit 13, while the light receiving unit 152 is provided on the control unit 14. Figure It is a front view showing a second modification of the structure of the detection device 2. ​ It is ​ The top view of the detection device 2 shown. In addition, in ​ In order to clearly show the internal structure of the detection device 2, the components covering the front of the inside of the detection device 2 are omitted. In addition, in ​ In order to clearly show the internal structure of the detection device 2, the components covering the upper surface of the inside of the detection device 2 are omitted.

[0158] In ​ and ​ In the example shown, the light emitting unit 151 is provided on the cover unit 13. On the other hand, in this example, the light receiving unit 152 is provided on the control unit 14 in the same manner as in the second embodiment. Therefore, in this example, the height of the upper surface of the light receiving unit 152 is also higher than the height of the upper surface of the light emitting unit 151. As a result, in the detection device 2, at least a part of the light emitted from the light emitting unit 151 toward the light receiving unit 152 is reflected by the side surface of the control unit 14 and the side surface of the light receiving unit 152 respectively, and does not reach the light receiving element provided in the light receiving unit 152. Thus, the detection device 2 can suppress at least a part of the light emitted from the light emitting unit 151 toward the light receiving unit 152 from directly entering the light receiving unit 152 and being received by the light receiving unit 152.

[0159] In addition, in ​ and ​ In the example shown, the positional relationship between the light emitting unit 151 and the light receiving unit 152 may be reversed. In this case, the height of the upper surface of the light emitting unit 151 is higher than the height of the upper surface of the light receiving unit 152. As a result, in the detection device 2, most of the light emitted from the light emitting unit 151 does not go toward the light receiving unit 152 but advances upward. Thus, the detection device 2 can also suppress at least a part of the light emitted from the light emitting unit 151 toward the light receiving unit 152 from directly entering the light receiving unit 152 and being received by the light receiving unit 152.

[0160] Here, in ​ and ​In the example shown, the light emitting unit 151 and the light receiving unit 152 are also arranged in the direction A3 in the order of the light emitting unit 151 and the light receiving unit 152. However, in the detection device 2, the effect of suppressing at least a part of the light emitted from the light emitting unit 151 and directed toward the light receiving unit 152 from directly entering the light receiving unit 152 and being received by the light receiving unit 152 is obtained by the height of the upper surface of the light receiving unit 152 being different from the height of the upper surface of the light emitting unit 151, regardless of the arrangement order of the light emitting unit 151 and the light receiving unit 152 in the direction A3.

[0161] In addition, the light emitting unit 151 may also be configured to be provided on the base 11 with a spacer or the like interposed therebetween. In addition, the light receiving unit 152 may also be configured to be provided on the control unit 14 with a spacer or the like interposed therebetween.

[0162] In ​ and ​ In the example shown, the height of the upper surface of the light emitting unit 151 is also higher than the height of the bottom surface of the cover unit 13. Therefore, in this case, in the detection device 2, the amount of light irradiated from the light emitting unit 151 to the acceleration detection unit 12 can also be reduced. As a result, the detection device 2 can suppress the heating of the acceleration detection unit 12 by the incident light.

[0163] In addition, in ​ and ​ In the example shown, the biological information detection unit 15 is also housed in the housing unit 16 together with the acceleration detection unit 12. Therefore, in the detection device 2, miniaturization can be achieved as compared with the case where the biological information detection unit 15 and the acceleration detection unit 12 are housed in their respective housing units.

[0164] As described above, in ​ and ​ In the detection device 2 shown, the height of the upper surface of the light emitting unit 151 is also different from the height of the upper surface of the light receiving unit 152. Thereby, the detection device 2 can suppress at least a part of the light emitted from the light emitting unit 151 and directed toward the light receiving unit 152 from being received by the light receiving unit 152. In addition, in ​ and ​ In the detection device 2 shown, the acceleration detection unit 12 and the biological information detection unit 15 are also housed in the housing unit 16. Thereby, as compared with the case where the biological information detection unit 15 and the acceleration detection unit 12 are housed in their respective housing units, the detection device 2 can be miniaturized. That is, the detection device 2 can reduce the amount of stray light incident on the light receiving unit 152 while being miniaturized.

[0165] <Third Modified Example of the Second Embodiment>

[0166] In the third modification of the second embodiment, similarly to the second embodiment, the light-emitting unit 151 is provided on the base 11, and the light-receiving unit 152 is provided on the lid portion 13. However, in the third modification of the second embodiment, different from the second embodiment, in the direction A3, the control unit 14 is located between the light-emitting unit 151 and the light-receiving unit 152. ​ It is a front view showing a third modification of the structure of the detection device 2. ​ is ​ a top view of the detection device 2 shown. In addition, in ​ , in order to clearly show the internal structure of the detection device 2, the components covering the front of the inside of the detection device 2 are omitted. Further, in ​ , in order to clearly show the internal structure of the detection device 2, the components covering the upper surface of the inside of the detection device 2 are omitted.

[0167] In ​ and ​ the example shown, the light-emitting unit 151 is provided on the base 11. On the other hand, in this example, the light-receiving unit 152 is provided on the lid portion 13. Therefore, in this example, the height of the upper surface of the light-receiving unit 152 is also higher than the height of the upper surface of the light-emitting unit 151. Further, in this example, the light-emitting unit 151, the light-receiving unit 152, and the control unit 14 are arranged in the order of the light-emitting unit 151, the control unit 14, and the light-receiving unit 152 in the direction A3. That is, the control unit 14 is located between the light-emitting unit 151 and the light-receiving unit 152 in the direction A3. In this case, the light from the light-emitting unit 151 that is directed toward the light-receiving unit 152 will not reach the light-receiving unit 152 unless it undergoes reflection, refraction, diffraction, etc. Therefore, in this example, the detection device 2 can more reliably suppress at least a part of the light from the light-emitting unit 151 that is directed toward the light-receiving unit 152 from directly entering the light-receiving unit 152 and being received by the light-receiving unit 152.

[0168] Further, in ​ and ​ the example shown, the positional relationship between the light-emitting unit 151 and the light-receiving unit 152 may be reversed. In this case, the height of the upper surface of the light-emitting unit 151 is higher than the height of the upper surface of the light-receiving unit 152. As a result, in the detection device 2, the light from the light-emitting unit 151 will not be directed toward the light-receiving unit 152 but will travel upward unless it undergoes reflection, refraction, diffraction, etc. Thus, the detection device 2 can also suppress at least a part of the light from the light-emitting unit 151 that is directed toward the light-receiving unit 152 from directly entering the light-receiving unit 152 and being received by the light-receiving unit 152.

[0169] In addition, the light-emitting unit 151 may also be a structure disposed on the base portion 11 with a spacer or the like interposed therebetween. In addition, the light-receiving unit 152 may also be a structure disposed on the control unit 14 with a spacer or the like interposed therebetween.

[0170] In addition, in ​ and ​ In the example shown, both the height of the upper surface of the light-emitting unit 151 and the height of the upper surface of the light-receiving unit 152 are lower than the height of the upper surface of the control unit 14. In this case, the detection device 2 can reduce the thickness in the direction A1, and as a result, the overall size can be reduced. To obtain such an effect, both the height of the upper surface of the light-emitting unit 151 and the height of the upper surface of the light-receiving unit 152 may be the same as the height of the upper surface of the control unit 14.

[0171] In addition, in ​ and ​ In the example shown, the height of the upper surface of the light-emitting unit 151 is also higher than the height of the bottom surface of the lid portion 13. Therefore, in this case, in the detection device 2, the amount of light irradiated from the light-emitting unit 151 to the acceleration detection unit 12 can also be reduced. As a result, the detection device 2 can suppress the heating of the acceleration detection unit 12 due to the incident light.

[0172] In addition, in ​ and ​ In the example shown, the biological information detection unit 15 is also housed in the housing unit 16 together with the acceleration detection unit 12. Therefore, in the detection device 2, miniaturization can be achieved as compared with the case where the biological information detection unit 15 and the acceleration detection unit 12 are housed in their respective housing units.

[0173] As described above, in ​ and ​ In the detection device 2 shown, the height of the upper surface of the light-emitting unit 151 is also different from the height of the upper surface of the light-receiving unit 152. In addition, in ​ and ​ In the detection device 2 shown, in the direction A3, the control unit 14 is located between the light-emitting unit 151 and the light-receiving unit 152. Thereby, the detection device 2 can more reliably suppress at least a part of the light emitted from the light-emitting unit 151 and directed toward the light-receiving unit 152 from being received by the light-receiving unit 152. In addition, in ​ and ​In the detection device 2 shown, the acceleration detection unit 12 and the biological information detection unit 15 are also housed in the housing unit 16. Thus, compared with the case where the biological information detection unit 15 and the acceleration detection unit 12 are housed in their respective housing units, the detection device 2 can be miniaturized. That is, the detection device 2 can reduce the amount of stray light incident on the light receiving unit 152 while being miniaturized. In addition, since the detection device 2 can reduce the amount of stray light incident on the light receiving unit 152 in this way, there is no need to provide a light shielding member that blocks light so that stray light does not enter the light receiving unit 152. As a result, the detection device 1 can be miniaturized more reliably.

[0174] In addition, in the second embodiment, the first modification to the third modification of the second embodiment described above, the shapes of the light emitting unit 151 and the light receiving unit 152 can be arbitrary shapes, can be different from each other, or can be the same as each other. In addition, the second embodiment, the first modification to the third modification of the second embodiment described above can be arbitrarily combined with each other. In addition, the second embodiment, the first modification to the third modification of the second embodiment described above can be arbitrarily combined with the first embodiment, the first modification to the eighth modification of the first embodiment, respectively.

[0175] <Third Embodiment>

[0176] Hereinafter, the third embodiment will be described with reference to the drawings.

[0177] <Outline of the Detection Device of the Third Embodiment>

[0178] First, the outline of the detection device of the third embodiment will be described.

[0179] The detection device of the third embodiment is attached to a predetermined part of the subject. In this detection device, the predetermined height direction is treated as the upper side. In addition, this detection device includes a base, an acceleration detection unit, a cover unit, a control unit, a light emitting unit, a light receiving unit, a first light shielding member, and a housing unit. The base has a surface perpendicular to the height direction. The acceleration detection unit is provided on the base. The cover unit covers the acceleration detection unit together with the base on the base. The control unit is provided on the cover unit and detects the body movement of the subject based on the output of the acceleration detection unit when the detection device is attached to this part. The biological information detection unit includes a light emitting unit that emits light and a light receiving unit that receives light. The first light shielding member is located between the biological information detection unit and the control unit in the width direction that intersects the height direction. The housing unit houses the base, the acceleration detection unit, the cover unit, the control unit, the biological information detection unit, and the first light shielding member. Thus, this detection device can block a part of the light reflected on the control unit in the housing unit. As a result, this detection device can reduce the incidence of stray light generated by the diffuse reflection of light in the housing unit on the light receiving unit while being miniaturized.

[0180] Hereinafter, the structure of the detection device according to the third embodiment will be described in detail. In addition, in the third embodiment, the same reference numerals are assigned to the structural parts that are the same as those in the first embodiment, and the description thereof is omitted.

[0181] <Structure of the Detection Device According to the Third Embodiment>

[0182] Hereinafter, the structure of the detection device according to the third embodiment will be described using the detection device 3 as an example. In the third embodiment, for the sake of convenience of explanation, the case of observing the detection device 3 in a certain direction is referred to as the case of observing from that direction for explanation.

[0183] The detection device 3 has the same structure as the detection device 1 except for the part that is an example of the first light-shielding member. ​ This is a front view showing an example of the structure of the detection device 3. ​ This is ​ a top view of the detection device 3 shown. In addition, in ​ order to clearly show the internal structure of the detection device 3, the part covering the front of the inside of the detection device 3 is omitted. Also, in ​ order to clearly show the internal structure of the detection device 3, the part covering the upper surface of the inside of the detection device 3 is omitted.

[0184] In ​ and ​ the example shown, the detection device 3 includes a base portion 11, an acceleration detection portion 12, a lid portion 13, a control portion 14, a biological information detection portion 15, a storage portion 16, and a first light-shielding member 17.

[0185] The first light-shielding member 17 is a part that is an example of the above-mentioned first light-shielding member. The first light-shielding member 17 can be any member as long as it can block light. The first light-shielding member 17 is, for example, a member made of blackened resin or opaque resin, but is not limited thereto. However, in this case, the first light-shielding member 17 can efficiently absorb light. In ​ and ​In the example shown, the first light-shielding member 17 is a rectangular flat plate-shaped member whose long side direction extends along direction A2 and whose short side direction extends along direction A1. The first light-shielding member 17 is located between the biological information detection unit 15 and the control unit 14 in direction A3. Therefore, the detection device 3 can block a part of the light reflected on the control unit 14 in the storage unit 16. This helps to suppress the diffuse reflection of light in the storage unit 16. As a result, the detection device 3 can reduce the situation where stray light generated due to the diffuse reflection of light in the storage unit 16 enters the light-receiving unit 152. In addition, since the detection device 3 can reduce the stray light from the control unit 14 side toward the light-receiving unit 152 through the first light-shielding member 17, the range in which the light-receiving unit 152 can receive light available for detecting biological information can be expanded. In addition, the first light-shielding member 17 can be provided on the cover portion 13 together with the control unit 14 as shown in ​ and ​ or can be a structure supported by other supporting members so as to be located between the biological information detection unit 15 and the control unit 14 in direction A3. However, most of the light reflection that causes diffuse reflection in the storage unit 16 occurs on the control unit 14. This is because the cover portion 13 as a silicon cap easily absorbs light, and the base portion 11 as a glass substrate easily transmits light. Therefore, the first light-shielding member 17 is preferably provided on the control unit 14. This is because, in this case, the first light-shielding member 17 can absorb the light reflected in the control unit 14 before it enters other components.

[0186] In addition, the first light-shielding member 17 is in contact with the control unit 14. In other words, the first light-shielding member 17 is adjacent to the control unit 14. Therefore, in the detection device 3, when the control unit 14 is provided on the cover portion 13, positioning using the first light-shielding member 17 can be performed. This is beneficial for the assembly of the detection device 3.

[0187] In addition, in ​ and ​ the example shown, the light-emitting unit 151 is provided on the base portion 11. Therefore, in this example, the height of the upper surface of the light-emitting unit 151 is also higher than the height of the bottom surface of the cover portion 13. Therefore, in this case, in the detection device 3, the amount of light irradiated from the light-emitting unit 151 to the acceleration detection unit 12 can also be reduced. As a result, the detection device 3 can suppress the heating of the acceleration detection unit 12 due to the incidence of light. In addition, the light-emitting unit 151 can also be a structure provided on the base portion 11 with a spacer or other components interposed therebetween.

[0188] In addition, in ​ and ​In the example shown, the light-receiving unit 152 and the light-emitting unit 151 are both provided on the base 11. Additionally, in this example, the height of the upper surface of the light-receiving unit 152 is the same as the height of the upper surface of the light-emitting unit 151. Additionally, the height of the upper surface of the light-receiving unit 152 may also be a height different from the height of the upper surface of the light-emitting unit 151. In ​ the light-receiving unit 152 is hidden behind the light-emitting unit 151 and cannot be seen. Additionally, the light-receiving unit 152 may also be structured to be provided on the cover unit 13 with components such as a spacer in between.

[0189] Additionally, in ​ and ​ the example shown, the light-receiving unit 152 is also provided on the base 11 in a manner arranged with the light-emitting unit 151 in the direction A2.

[0190] Additionally, in ​ and ​ the example shown, the light-receiving unit 152 is also provided on the base 11 in a manner arranged with the control unit 14 in the direction A3.

[0191] As described above, ​ and ​ the detection device 3 shown includes the first light-shielding member 17. Thus, the detection device 3 can block a part of the light reflected on the control unit 14 within the storage unit 16. This helps to suppress the diffuse reflection of light within the storage unit 16. As a result, the detection device 3 can reduce the amount of stray light incident on the light-receiving unit 152 due to the diffuse reflection of light within the storage unit 16. In addition, since the detection device 3 can reduce the stray light from the control unit 14 side toward the light-receiving unit 152 through the first light-shielding member 17, the range in which the light-receiving unit 152 can receive the light available for detecting biological information can be expanded. Additionally, in ​ and ​ the detection device 3 shown, the acceleration detection unit 12 and the biological information detection unit 15 are also housed in the storage unit 16. Thus, compared with the case where the biological information detection unit 15 and the acceleration detection unit 12 are housed in their respective storage units, the detection device 3 can be miniaturized. That is, the detection device 3 can be miniaturized, and the stray light generated due to the diffuse reflection of light within the storage unit 16 incident on the light-receiving unit 152 can be reduced.

[0192] <First Variation of the Third Embodiment>

[0193] In the first variation of the third embodiment, the detection device 3 further includes a second light-shielding member 18, a third light-shielding member 19, a fourth light-shielding member 20, and a fifth light-shielding member 21 in addition to the structure described in the third embodiment. ​ is a front view showing the structure of the first variation of the detection device 3. ​ is​ Side view of the detection device 3 shown ​ is ​ Top view of the detection device 3 shown. In addition, in ​ , in order to clearly show the internal structure of the detection device 3, the components covering the front of the inside of the detection device 3 are omitted. In addition, in ​ , in order to clearly show the internal structure of the detection device 3, the components covering the side of the inside of the detection device 3 are omitted. In addition, in ​ , in order to clearly show the internal structure of the detection device 3, the components covering the upper surface of the inside of the detection device 3 are omitted.

[0194] Hereinafter, for the sake of convenience of explanation, the inner wall on the negative Y-axis side among the inner walls of the storage part 16 is referred to as the first wall W1 for explanation, the inner wall on the negative X-axis side among the inner walls of the storage part 16 is referred to as the second wall W2 for explanation, and the inner wall on the positive X-axis side among the inner walls of the storage part 16 is referred to as the third wall W3 for explanation. That is, the third wall W3 is the inner wall of the storage part 16 that faces the second wall W2 in the direction A2.

[0195] In ​ In the example shown, the second light-shielding member 18 only needs to be a sheet-like member that blocks light, and can be any member. For example, it is a light-shielding sheet made of blackened resin or opaque resin, etc., but is not limited thereto. However, in this case, the second light-shielding member 18 can efficiently absorb light. The second light-shielding member 18 is disposed on the bottom surface in such a manner as to be located between the bottom surface of the storage part 16 and the base part 11 in the direction A1. In this example, when viewed in the direction opposite to the direction A1, the second light-shielding member 18 is a rectangular light-shielding sheet disposed on the bottom surface so as to extend from the first wall W1 toward the direction A3 to the cover part 13. Therefore, the second light-shielding member 18 overlaps with both the light-emitting part 151 and the light-receiving part 152 in the direction A1. Thereby, the second light-shielding member 18 can absorb the light that is not completely shielded by the cover part 13. Hereinafter, the region on the bottom surface that overlaps with the second light-shielding member 18 in ​ is referred to as the target region for explanation. The second light-shielding member 18 may be a structure that covers a part of the target region, or may be a structure that covers the entire target region as shown in ​ . In addition, the second light-shielding member 18 may also be a structure that together covers at least a part of the target region and at least a part of the region on the bottom surface other than the target region. In addition, the second light-shielding member 18 may be a structure that overlaps with either the light-emitting part 151 or the light-receiving part 152, or may be a structure that does not overlap with both the light-emitting part 151 and the light-receiving part 152.

[0196] When the detection device 3 is provided with the second light-shielding member 18, at least a part of the light incident on the bottom surface of the storage portion 16, such as the light transmitted through the base portion 11, can be absorbed by the second light-shielding member 18. As a result, the detection device 3 can suppress the diffuse reflection of light in the storage portion 16. That is, in this case, the detection device 3 can more reliably reduce the amount of stray light received by the light-receiving portion 152 due to the diffuse reflection of light in the storage portion 16.

[0197] In addition, in ​ In the example shown, the third light-shielding member 19 can be any member as long as it is a sheet-like member that blocks light, such as a light-shielding sheet made of blackened resin or opaque resin, but is not limited thereto. However, in this case, the third light-shielding member 19 can efficiently absorb light. The third light-shielding member 19 is provided on the first wall W1. In this example, the third light-shielding member 19 entirely covers the first wall W1. However, the third light-shielding member 19 can also be configured to cover a part of the first wall W1.

[0198] When the detection device 3 is provided with the third light-shielding member 19, at least a part of the light incident on the first wall W1, such as the light reflected on the metal on the surface of the acceleration detection portion 12 which is a silicon structure, can be absorbed by the third light-shielding member 19. As a result, the detection device 3 can suppress the diffuse reflection of light in the storage portion 16. That is, in this case, the detection device 3 can more reliably reduce the incidence of stray light generated due to the diffuse reflection of light in the storage portion 16 on the light-receiving portion 152.

[0199] In addition, in ​ In the example shown, the fourth light-shielding member 20 can be any member as long as it is a sheet-like member that blocks light, such as a light-shielding sheet made of blackened resin or opaque resin, but is not limited thereto. However, in this case, the fourth light-shielding member 20 can efficiently absorb light. The fourth light-shielding member 20 is provided on the second wall W2. In this example, the fourth light-shielding member 20 covers the entire second wall W2. However, the fourth light-shielding member 20 can also be configured to cover a part of the second wall W2.

[0200] When the detection device 3 is provided with the fourth light-shielding member 20, at least a part of the light incident on the second wall W2, such as the light reflected on the metal on the surface of the acceleration detection portion 12 which is a silicon structure, can be absorbed by the fourth light-shielding member 20. As a result, the detection device 3 can suppress the diffuse reflection of light in the storage portion 16. That is, in this case, the detection device 3 can more reliably reduce the incidence of stray light generated due to the diffuse reflection of light in the storage portion 16 on the light-receiving portion 152.

[0201] In addition, in ​In the example shown, the fifth light-shielding member 21 can be any member as long as it is a sheet-like member that shields light. For example, it can be a light-shielding sheet made of resin painted black, etc., but is not limited thereto. However, in this case, the fifth light-shielding member 21 can efficiently absorb light. The fifth light-shielding member 21 is provided on the third wall W3. In this example, the fifth light-shielding member 21 covers the entire third wall W3. However, the fifth light-shielding member 21 can also be configured to cover a part of the third wall W3.

[0202] When the detection device 3 includes the fifth light-shielding member 21, at least a part of the light incident on the third wall W3, such as the light reflected on the metal on the surface of the acceleration detection unit 12 which is a silicon structure, can be absorbed by the fifth light-shielding member 21. As a result, the detection device 3 can suppress the diffuse reflection of light in the storage unit 16. That is, in this case, the detection device 3 can more reliably reduce the situation where stray light generated due to the diffuse reflection of light in the storage unit 16 enters the light-receiving unit 152.

[0203] In addition, the detection device 3 can also be configured not to include a part of the second light-shielding member 18 to the fifth light-shielding member 21. However, in the detection device 3, the more the number of the light-shielding members among the four light-shielding members of the second light-shielding member 18 to the fifth light-shielding member 21, the easier it is to absorb the light that becomes stray light in the storage unit 16. Therefore, it is preferable that the detection device 3 includes two or more of the second light-shielding member 18 to the fifth light-shielding member 21.

[0204] As described above, Figures 29 to 31 the detection device 3 shown includes the second light-shielding member 18 to the fifth light-shielding member 21. Thereby, the detection device 3 can suppress the diffuse reflection of light in the storage unit 16. That is, the detection device 3 can more reliably reduce the situation where stray light generated due to the diffuse reflection of light in the storage unit 16 enters the light-receiving unit 152.

[0205] <Second Variation of the Third Embodiment>

[0206] In the second variation of the third embodiment, the detection device 3 further includes a sixth light-shielding member 22 in addition to the structure described in the first variation of the third embodiment. Figure 32 is a front view showing the second variation of the structure of the detection device 3. In addition, in Figure 32 in order to clearly show the internal structure of the detection device 3, the member covering the front of the inside of the detection device 3 is omitted.

[0207] The sixth light-shielding member 22 can be any member as long as it is a sheet-like member that shields light. For example, it can be a light-shielding sheet made of blackened resin or opaque resin, etc., but it is not limited thereto. However, in this case, the sixth light-shielding member 22 can efficiently absorb light. The sixth light-shielding member 22 is provided on the second member 162 in such a manner as to cover at least a part of the region on the upper surface of the second member 162 that does not overlap with the object region in the direction A1. Thereby, the detection device 3 can make the light reflected by the object part among the light emitted from the light-emitting part 151 enter the storage part 16, and on the other hand, can suppress the entry of light other than this light, such as ambient light, into the storage part 16. As a result, the detection device 3 can more reliably suppress the diffuse reflection of light in the storage part 16. That is, the detection device 3 can more reliably reduce the situation where stray light generated due to the diffuse reflection of light in the storage part 16 enters the light-receiving part 152.

[0208] As described above, Figure 32 the detection device 3 shown has the sixth light-shielding member 22. Thereby, the detection device 3 can suppress the diffuse reflection of light in the storage part 16. That is, the detection device 3 can more reliably reduce the situation where stray light generated due to the diffuse reflection of light in the storage part 16 enters the light-receiving part 152.

[0209] <Third Modified Example of the Third Embodiment>

[0210] In the third modified example of the third embodiment, the detection device 3 further includes a filter 23 in addition to the structure described in the third embodiment. Figure 33 It is a front view showing a third modified example of the structure of the detection device 3. In addition, in Figure 33 in order to clearly show the internal structure of the detection device 3, the member covering the front of the inside of the detection device 3 is omitted.

[0211] The filter 23 is provided on the upper surface of the light-receiving part 152. In addition, in Figure 33 the light-receiving part 152 is hidden behind the light-emitting part 151 and cannot be seen. The filter 23 is, for example, an angle-limiting filter. When the filter 23 is an angle-limiting filter, the detection device 3 can make the light-receiving part 152 receive only the light incident at a specified angle with the imaginary axis perpendicular to the upper surface of the light-receiving part 152 as the central axis. The specified angle is, for example, 30°. Thereby, the detection device 3 can make the light-receiving part 152 receive the light reflected by the object part among the light emitted from the light-emitting part 151, and on the other hand, can suppress the light-receiving part 152 from receiving light other than this light, such as ambient light. In addition, the specified angle can be an angle less than 30° or an angle greater than 30°. However, the larger the specified angle is greater than 30°, the easier it is for the light-receiving part 152 to receive this light. Therefore, the specified angle is preferably 30° or less.

[0212] In addition, the filter 23 can also be, for example, an optical filter that transmits light in a predetermined wavelength band. When the filter 23 is an optical filter, the detection device 3 can cause the light-receiving unit 152 to selectively receive the light reflected from the object part among the light emitted from the light-emitting unit 151. As a result, it is possible to suppress the light-receiving unit 152 from receiving light other than this light, such as ambient light.

[0213] In addition, the filter 23 can also be a filter formed by laminating an angle-limiting filter and an optical filter. Thereby, the detection device 3 can cause the light-receiving unit 152 to receive the light reflected from the object part among the light emitted from the light-emitting unit 151. On the other hand, it is possible to suppress the light-receiving unit 152 from receiving light other than this light, such as ambient light.

[0214] In addition, in the detection device 3 described above, a slit can also be formed in the second member 162 of the storage unit 16. In this case, this slit can obtain the same effect as the effect obtained when the filter 23 is an angle-limiting filter. That is, in this case, the detection device 3 can also cause the light-receiving unit 152 to receive the light reflected from the object part among the light emitted from the light-emitting unit 151. On the other hand, it is possible to suppress the light-receiving unit 152 from receiving light other than this light, such as ambient light.

[0215] In addition, the detection device 3 described above can also have a structure including a light-shielding wall that surrounds the periphery of the light-receiving unit 152 in the circumferential direction A1 and extends from the light-receiving unit 152 to the lower surface of the second member 162 of the storage unit 16. In this case, the detection device 3 can also cause the light-receiving unit 152 to receive the light reflected from the object part among the light emitted from the light-emitting unit 151. On the other hand, it is possible to suppress the light-receiving unit 152 from receiving light other than this light, such as ambient light. In addition, the height of this light-shielding wall can also be a height that does not reach the lower surface of the second member 162.

[0216] Here, in each of the detection device 1, the detection device 2, and the detection device 3 described above, the biological information detection unit 15 can also have a structure including a plurality of light-receiving units including the light-receiving unit 152. However, as described above, the detection device 1, the detection device 2, and the detection device 3 can each detect the desired biological information with high accuracy by adjusting at least one of the wavelength band, intensity, etc. of the light emitted from the light-emitting unit 151. Therefore, the biological information detection unit 15 does not necessarily need to have the plurality of light-receiving units. Therefore, in each of the above-described examples, the biological information detection unit 15 has one light-receiving unit 152. In addition, in each of the detection device 1, the detection device 2, and the detection device 3, it is preferable that the biological information detection unit 15 has one light-receiving unit 152 instead of a plurality of light-receiving units, which is related to suppressing an increase in power consumption.

[0217] In addition, in each of the detection devices 1, 2, and 3 described above, the control unit 14 may also be structured such that it is surrounded by a light-shielding member. This is because the IC chip that constitutes the control unit 14 may malfunction due to light. For the same reason, a structure may also be adopted in which a light-shielding member that blocks the incidence of light to the control unit 14 is provided in the storage unit 16 of each of the detection devices 1, 2, and 3 described above.

[0218] In addition, in each of the detection devices 1, 2, and 3 described above, the biological information detection unit 15 may also be structured to include a plurality of light-receiving units including the light-receiving unit 152. However, as described above, the detection devices 1, 2, and 3 can detect desired biological information with high precision by adjusting at least one of the wavelength band, intensity, etc. of the light emitted from the light-emitting unit 151. Therefore, the biological information detection unit 15 does not necessarily need to include the plurality of light-receiving units. Thus, in each of the examples described above, the biological information detection unit 15 includes one light-receiving unit 152. In addition, in each of the detection devices 1, 2, and 3, the biological information detection unit 15 includes one light-receiving unit 152 instead of a plurality of light-receiving units, which is related to suppressing an increase in power consumption and is preferable.

[0219] In addition, the matters described above can be combined arbitrarily.

[0220] <Supplementary Note 1> [1]

[0222] A detection device is installed at a predetermined part of a subject, with a predetermined first direction as the upward direction. The detection device includes: a base having a surface perpendicular to the first direction; an acceleration detection unit provided on the base; a cover portion covering the base and the acceleration detection unit together on the base; a control unit provided on the cover portion, detecting a body movement of the subject based on an output of the acceleration detection unit when the detection device is installed at the part; a light-emitting unit emitting light; a light-receiving unit receiving the light; and a storage unit storing the base, the acceleration detection unit, the cover portion, the control unit, the light-emitting unit, and the light-receiving unit, wherein a height of an upper surface of the light-emitting unit in the first direction is higher than a height of a bottom surface of the cover portion in the first direction. [2]

[0224] According to the detection device described in [1], wherein the control unit detects biological information of the subject based on an intensity of the light received by the light-receiving unit, and corrects the biological information according to the detected body movement. [3]

[0226] The detection device according to [1] or [2], wherein both the light emitting unit and the light receiving unit are provided on the control unit. [4]

[0228] The detection device according to [1] or [2], wherein both the light emitting unit and the light receiving unit are provided on the cover unit or the base unit. [5]

[0230] The detection device according to [4], wherein the height of the upper surface of the light emitting unit in the first direction and the height of the upper surface of the light receiving unit in the first direction are respectively heights below the height of the upper surface of the control unit in the first direction. [6]

[0232] The detection device according to [4], wherein the control unit extends in a second direction intersecting the first direction, the light emitting unit is arranged with the control unit in a third direction intersecting the first direction and the second direction respectively, the light receiving unit is arranged with the control unit in the third direction, and is arranged with the light emitting unit in the second direction. [7]

[0234] The detection device according to [4], wherein the control unit extends in a second direction intersecting the first direction, the light emitting unit is arranged with the control unit in a third direction intersecting the first direction and the second direction respectively, the light receiving unit is arranged with the control unit and the light emitting unit in the third direction respectively, and is arranged to be located between the light emitting unit and the control unit. [8]

[0236] The detection device according to [4], wherein the control unit extends in a second direction intersecting the first direction, the light emitting unit is arranged with the control unit in a third direction intersecting the first direction and the second direction respectively, and the light receiving unit is arranged with the control unit in the second direction. [9]

[0238] The detection device according to any one of [1] to [8], wherein, when viewed from the first direction, the size of the light emitting unit is different from the size of the light receiving unit.

[10]

[0240] The detection device according to [9], wherein, when viewed from the first direction, the light receiving unit is larger than the light emitting unit.

[0241] <Addendum 2> [1]

[0243] A detection device is installed at a predetermined part of a subject, with a predetermined first direction as the upward direction. The detection device includes: a base having a surface perpendicular to the first direction; an acceleration detection unit provided on the base; a cover part covering the base and the acceleration detection unit together on the base; a control unit provided on the cover part, detecting the body movement of the subject based on the output of the acceleration detection unit when the detection device is installed at the part; a light emitting part emitting light; a light receiving part receiving the light; and a storage part storing the base, the acceleration detection unit, the cover part, the control unit, the light emitting part, and the light receiving part. The height of the upper surface of the light emitting part in the first direction is higher than the height of the bottom surface of the cover part in the first direction. The control unit is provided between the light emitting part and the light receiving part in the direction in which the light emitting part and the light receiving part are arranged. [2]

[0245] The detection device according to [1], wherein the control unit detects the biological information of the subject according to the intensity of the light received by the light receiving part, and corrects the biological information according to the detected body movement. [3]

[0247] The detection device according to [1] or [2], wherein both the light emitting part and the light receiving part are provided on the cover part or the base. [4]

[0249] The detection device according to [3], wherein the height of the upper surface of the light emitting part in the first direction and the height of the upper surface of the light receiving part in the first direction are respectively lower than the height of the upper surface of the control unit in the first direction. [5]

[0251] The detection device according to [3], wherein the control unit extends in a second direction intersecting the first direction, and the direction in which the light emitting part and the light receiving part are arranged is a third direction intersecting the first direction and the second direction respectively. [6]

[0253] The detection device according to any one of [1] to [5], wherein the size of the light emitting part is different from the size of the light receiving part when observed from the first direction. [7]

[0255] The detection device according to [6], wherein the light receiving part is larger than the light emitting part when observed from the first direction.

[0256] <Supplementary Note 3> [1]

[0258] A detection device is installed at a predetermined part of a subject, with a predetermined first direction being the upward direction. The detection device includes: a base having a surface perpendicular to the first direction; an acceleration detection part provided on the base; a cover part covering the base and the acceleration detection part together on the base; a control part provided on the cover part for detecting the body movement of the subject based on the output of the acceleration detection part when the detection device is installed at the part; a light-emitting part for emitting light; a light-receiving part for receiving the light; and a housing part for housing the base, the acceleration detection part, the cover part, the control part, the light-emitting part, and the light-receiving part. The height of the upper surface of the light-emitting part in the first direction is different from the height of the upper surface of the light-receiving part in the first direction. [2]

[0260] The detection device according to [1], wherein the control part detects the biological information of the subject according to the intensity of the light received by the light-receiving part, and corrects the biological information according to the detected body movement. [3]

[0262] The detection device according to [1] or [2], wherein the control part extends in a second direction intersecting the first direction, the light-emitting part is arranged in a third direction intersecting the first direction and the second direction respectively with the control part, the light-receiving part is arranged in the third direction with the control part, and is arranged in the second direction with the light-emitting part. [4]

[0264] The detection device according to [1] or [2], wherein the control part extends in a second direction intersecting the first direction, the light-emitting part is arranged in a third direction intersecting the first direction and the second direction respectively with the control part, the light-receiving part is arranged in the third direction with the control part and the light-emitting part respectively. [5]

[0266] The detection device according to [4], wherein the control part is arranged between the light-emitting part and the light-receiving part in the third direction. [6]

[0268] The detection device according to any one of [1] to [5], wherein the height of the upper surface of the light-emitting part in the first direction and the height of the upper surface of the light-receiving part in the first direction are both heights below the height of the upper surface of the control part in the first direction. [7]

[0270] The detection device according to [1] or [2], wherein the light-emitting part is provided on any one of the base part, the cover part, and the control part, and the light-receiving part is provided on any one of the two parts among the base part, the cover part, and the control part where the light-emitting part is not provided. [8]

[0272] The detection device according to any one of [1] to [6], wherein the height of the upper surface of the light-receiving part in the first direction is higher than the height of the upper surface of the light-emitting part in the first direction. [9]

[0274] The detection device according to any one of [1] to [6], wherein the height of the upper surface of the light-emitting part in the first direction is higher than the height of the upper surface of the light-receiving part in the first direction.

[10]

[0276] The detection device according to any one of [1] to [9], wherein, when observed from the first direction, the size of the light-emitting part is different from the size of the light-receiving part.

[11]

[0278] The detection device according to

[10] , wherein, when observed from the first direction, the light-receiving part is larger than the light-emitting part.

[0279] <Appendix 4> [1]

[0281] A detection device is installed at a predetermined part of a subject. When a predetermined height direction is regarded as upward, the detection device includes: a base having a surface perpendicular to the height direction; an acceleration detection unit disposed on the base; a cover portion covering the base and the acceleration detection unit together on the base; a control unit disposed on the cover portion, and detecting a body movement of the subject based on an output of the acceleration detection unit when the detection device is installed at the part; a biological information detection unit having a light-emitting portion that emits light and a light-receiving portion that receives the light; a first light-shielding member located between the biological information detection unit and the control unit in a width direction intersecting the height direction; and a storage portion that stores the base, the acceleration detection unit, the cover portion, the control unit, the biological information detection unit, and the first light-shielding member. [2]

[0283] The detection device according to [1], wherein the control unit detects biological information of the subject based on an intensity of the light received by the light-receiving portion, and corrects the biological information according to the detected body movement. [3]

[0285] The detection device according to [1] or [2], wherein the first light-shielding member is provided on the cover portion. [4]

[0287] The detection device according to any one of [1] to [3], wherein the light-emitting portion and the light-receiving portion are provided between the cover portion and a first wall of the storage portion in the width direction. [5]

[0289] The detection device according to any one of [1] to [4], wherein the light-emitting portion and the light-receiving portion are provided on the base. [6]

[0291] The detection device according to any one of [1] to [5], wherein the first light-shielding member is provided to be adjacent to the control unit in the width direction. [7]

[0293] The detection device according to any one of [1] to [6], wherein a second light-shielding member is provided between a bottom surface of the storage portion and the base in the height direction. [8]

[0295] The detection device according to [7], wherein the second light-shielding member overlaps at least one of the light-emitting portion and the light-receiving portion in the height direction. [9]

[0297] The detection device according to [8], wherein, when observed in a direction opposite to the height direction, the second light-shielding member extends from the first wall of the storage portion toward the width direction to the cover portion.

[10]

[0299] The detection device according to [9] includes a third light-shielding member provided on the first wall.

[11]

[0301] The detection device according to

[10] , wherein the storage portion has a second wall and a third wall, the second wall intersects the height direction and the width direction respectively, and faces the third wall in the arrangement direction in which the light-receiving portion and the light-emitting portion are arranged, and the detection device includes a fourth light-shielding member provided on the second wall and a fifth light-shielding member provided on the third wall.

[12]

[0303] The detection device according to any one of [1] to

[11] , wherein an angle-limiting filter is provided in the light-receiving portion.

[13]

[0305] The detection device according to any one of [1] to

[12] , wherein an optical filter is provided in the light-receiving portion.

[14]

[0307] The detection device according to any one of [1] to

[13] , wherein the first light-shielding member is made of an opaque resin.

[0308] As described above, the embodiments of the present disclosure have been described in detail with reference to the drawings, but the specific structure is not limited to this embodiment, and changes, replacements, deletions, etc. can be made as long as the gist of the present disclosure is not deviated from.

Claims

1. A detection device, which is installed at a predetermined position of a subject, With the predetermined first direction as the top, The detection device comprises: a base having a surface perpendicular to the first direction; an acceleration detection unit, which is disposed on the base; a cover portion, which covers the base portion and the acceleration detection portion on the base portion; a control unit provided on the cover portion and configured to detect a body movement of the subject based on an output of the acceleration detection unit when the detection device is mounted on the portion; a light emitting portion that emits light; a light receiving part for receiving the light; as well as a storage portion that stores the base portion, the acceleration detection portion, the cover portion, the control portion, the light emitting portion, and the light receiving portion, A height of an upper surface of the light emitting portion in the first direction is greater than a height of a bottom surface of the cover portion in the first direction.

2. The detection device according to claim 1, wherein: The control unit detects biological information of the subject based on the intensity of the light received by the light receiving unit, and corrects the biological information based on the detected body movement.

3. The detection device according to claim 1, wherein: Both the light emitting unit and the light receiving unit are arranged on the control unit.

4. The detection device according to claim 1, wherein: Both the light emitting part and the light receiving part are arranged on the cover part or the base part.

5. The detection device according to claim 4, wherein: The height of the upper surface of the light emitting portion in the first direction and the height of the upper surface of the light receiving portion in the first direction are respectively lower than the height of the upper surface of the control portion in the first direction.

6. The detection device according to claim 4, wherein: The control portion extends in a second direction intersecting the first direction, The light emitting unit is arranged in a row with the control unit in a third direction intersecting the first direction and the second direction respectively. The light receiving unit is arranged in parallel with the control unit in the third direction, and is arranged in parallel with the light emitting unit in the second direction.

7. The detection device according to claim 4, wherein: The control portion extends in a second direction intersecting the first direction, The light emitting unit is arranged in a row with the control unit in a third direction intersecting the first direction and the second direction respectively. The light receiving unit is arranged in parallel with the control unit and the light emitting unit in the third direction, and is arranged to be located between the light emitting unit and the control unit.

8. The detection device according to claim 4, wherein: The control portion extends in a second direction intersecting the first direction, The light emitting unit is arranged in a row with the control unit in a third direction intersecting the first direction and the second direction respectively. The light receiving unit is arranged in parallel with the control unit in the second direction.

9. The detection device according to claim 1, wherein: When viewed from the first direction, the size of the light emitting portion is different from the size of the light receiving portion.

10. The detection device according to claim 9, wherein: When viewed from the first direction, the light receiving portion is larger than the light emitting portion.

Images