Biological information measuring device

Abstract

To suppress the decrease in the accuracy of body temperature measurement by the temperature detection member due to the influence of light emitted from a pair of light-emitting members. [Solution] The biological information measuring device 100 includes a first light-emitting member 211 that emits a first light L1 toward a living body HB, a first light-receiving member 221 that receives the first light L1 from the living body HB, a housing member 29 that houses the first light-emitting member 211 and the first light-receiving member 221, and a first temperature-detecting member 231 that detects the temperature of the living body HB. The housing member 29 has a first wall portion 261 and a second wall portion 262 provided between the first light-emitting member 211 and the first light-receiving member 221. At least a part of the first wall portion 261 has higher thermal conductivity than the second wall portion 262 and is thermally coupled to the first temperature-detecting member 231. In the direction in which the first light-emitting member 211 and the first light-receiving member 221 are aligned, the first light-receiving member 221 is provided between the first wall portion 261 and the second wall portion 262.

Description

Technical Field

[0001] The present invention relates to a biological information measuring device that is attached to the body and optically detects biological information.

Background Art

[0002] As a biological information measuring device, there is known one that includes a sensor module having a pair of light emitting parts that emit light including near-infrared light and a light receiving part that is sensitive to near-infrared light, and measures the body temperature of a subject by a temperature detection element via a conduction part or a substrate (Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the biological information measuring device of Patent Document 1 described above, since the light emitted from the pair of light emitting elements directly enters the conduction part, the heat due to the light entering the conduction part is transmitted to the temperature detection element, and the accuracy of body temperature measurement decreases.

Means for Solving the Problems

[0005] A first biological information measuring device according to one aspect of the present invention includes a first light emitting member that emits first light toward a living body, a first light receiving member that receives the first light from the living body, a housing member that houses the first light emitting member and the first light receiving member, and a first temperature detection member that detects the temperature of the living body. The housing member has a first wall part and a second wall part provided between the first light emitting member and the first light receiving member. At least a part of the first wall part has higher thermal conductivity than the second wall part and is thermally coupled to the first temperature detection member. In the direction in which the first light emitting member and the first light receiving member are arranged side by side, the first light receiving member is provided between the first wall part and the second wall part.

[0006] A second biological information measuring device in one aspect of the present invention comprises a first light-emitting member that emits first light toward a living body, a first light-receiving member that receives first light from the living body, a housing member that houses the first light-emitting member and the first light-receiving member, and a first temperature-detecting member that detects the temperature of the living body, wherein the housing member has a first wall portion and a second wall portion provided between the first light-emitting member and the first light-receiving member, and at least a part of the first wall portion has higher thermal conductivity than the second wall portion and is thermally coupled with the first temperature-detecting member, and the first wall portion is provided so as to be aligned with the first light-receiving member in a direction intersecting the direction in which the first light-emitting member and the first light-receiving member are aligned. [Brief explanation of the drawing]

[0007] [Figure 1] This is a bottom view of the biological information measuring device according to the first embodiment. [Figure 2] This is a lateral cross-sectional view of the biological information measuring device according to the first embodiment. [Figure 3] This is a magnified view of the bottom of the sensor device. [Figure 4] This is an enlarged side cross-section view of the sensor device. [Figure 5] This is a diagram illustrating a modified example of a biological information measurement device. [Figure 6] This is a bottom view of the biological information measuring device according to the second embodiment. [Figure 7] This is a lateral cross-sectional view of the biological information measuring device according to the second embodiment. [Figure 8] This is a diagram illustrating a modified example of a biological information measurement device. [Figure 9] This diagram illustrates another modified example of a biometric information measuring device. [Figure 10] This diagram illustrates yet another modified example of a biological information measurement device. [Figure 11] This is a bottom view of the biological information measuring device according to the third embodiment. [Figure 12] This is a diagram illustrating a modified example of a biological information measurement device. [Figure 13] This diagram illustrates another modified example of a biometric information measuring device. [Figure 14] This diagram illustrates yet another modified example of a biological information measurement device. [Modes for carrying out the invention]

[0008] A first embodiment of the biological information measuring device according to the present invention will be described below with reference to the drawings.

[0009] Figure 1 is a conceptual bottom view illustrating the first embodiment of the biological information measuring device, and Figure 2 is a conceptual side cross-sectional view illustrating the first embodiment of the biological information measuring device.

[0010] The biometric information measuring device 100 has the appearance of a wristwatch and can be worn on the arm, which is part of the human body, i.e., the living body (HB). It comprises a main unit 100a and a pair of wristbands 100b attached to the main unit 100a and extending in opposite directions. The main unit 100a includes a sensor device 20, a control circuit device 30, a battery 40, a display 50, and a case 70.

[0011] In the main unit 100a, the sensor device 20 includes a first light-emitting member 211, a first light-receiving member 221, a first temperature detection member 231, a circuit board 25, a partition member 26, and a lens member 27. The first light-emitting member 211 is a light-emitting diode that emits irradiation light DL, which is, for example, green light, red light, infrared light, etc. The first light-emitting member 211 emits the first light L1, which is the irradiation light DL, towards the target, which is a living organism HB, through the window member 27w of the lens member 27. The first light-receiving member 221 is a photodiode that receives the reflected light SL, which is, for example, green light, red light, infrared light, etc. The first light-receiving member 221 receives the first light L1, which is the reflected light SL that has returned through the window member 27w, and outputs a signal corresponding to the intensity of the first light L1. The combination of the first light-emitting member 211 and the first light-receiving member 221 is called the light sensor 20a. The optical sensor 20a can detect blood flow pulsation as, for example, fluctuations in the intensity of the first light L1, which is the return light SL from the artery, and obtain information such as pulse rate.

[0012] The first temperature detection member 231 is, for example, a temperature sensor having a thermistor, and its resistance value changes with temperature. The first temperature detection member 231 is connected to the second wall portion 261 of the partition member 26. The second wall portion 261 has high thermal conductivity as will be described later, and efficiently transmits the temperature of the upper end 26i of the second wall portion 261 to the lower end 26j of the second wall portion 261. The first temperature detection member 231 can accurately measure the temperature of the living body HB or the body temperature on the lens member 27. The first temperature detection member 231 is provided on the lower surface 25v opposite to the upper surface 25u on which the housing member 29 for accommodating the optical sensor 20a is provided, with reference to the circuit board 25 described later. In this case, there is no need to secure a space for providing the first temperature detection member 231 in the measurement region where the optical sensor 20a, which is the first light emitting member 211 or the first light receiving member 221, exists, and space saving becomes easy.

[0013] The circuit board 25 supports and fixes the first light emitting member 211, the first light receiving member 221, and the partition member 26 on the upper surface 25u. The circuit board 25 supports and fixes the first temperature detection member 231 on the lower surface 25a. The circuit board 25 has a first drive circuit 25a for operating the first light emitting member 211 and the first light receiving member 221, and a second drive circuit 25b for operating the first temperature detection member 231. The circuit board 25 functions as a housing member 29 by combining with the partition member 26. From the first drive circuit 25a, information regarding the optical response of the target, which is the living body HB, specifically information regarding the pulse, is output to the control circuit device 30. From the second drive circuit 25b, information regarding the body temperature and the like of the target, which is the living body HB, is output to the control circuit device 30.

[0014] As shown enlarged in FIGS. 3 and 4, the partition member 26 is composed of a first light shielding wall 26a, a second light shielding wall 26b, a third light shielding wall 26c, a fourth light shielding wall 26d, a fifth light shielding wall 26e, a sixth light shielding wall 26f, and a seventh light shielding wall 26g. The partition member 26 forms a space S1 for accommodating the first light emitting member 211 and a space S2 for accommodating the first light receiving member 221 on the circuit board 25.

[0015] Among these light-shielding walls 26a to 26g, the first light-shielding wall 26a is the second wall portion 262, and the seventh light-shielding wall 26g is the first wall portion 261. The first wall portion 261 is formed of, for example, aluminum, copper, or an alloy containing at least one of these, and is thermally coupled to the first temperature detection member 231 via a connecting portion 26k embedded in the circuit board 25. Also, the upper end 26i of the first wall portion 261 is fixed so as to be fitted into a heat conducting portion 27c made of a heat conductor formed in the lens member 27. Thereby, the body temperature of the living body HB in contact with the lens member 27 is efficiently transmitted to the first temperature detection member 231 via the first wall portion 261. The second wall portion 262 is formed of, for example, a black resin material, has low thermal conductivity, and has light-shielding properties. That is, the first wall portion 261 has higher thermal conductivity than the second wall portion 262. The second wall portion 262 is provided between the first light emitting member 211 and the first light receiving member 221 to prevent the first light L1 emitted from the first light emitting member 211 from directly entering the first light receiving member 221. The second wall portion 262 prevents the radiant heat of the first light emitting member 211 from being transmitted to the first light receiving member 221.

[0016] In the partition member 26, the first light receiving member 221 is provided between the first wall portion 261 and the second wall portion 262 in the ±X direction in which the first light emitting member 211 and the first light receiving member 221 are arranged side by side. As a result, the first wall portion 261 is disposed behind or at the back of the second wall portion 262 and the first light receiving member 221 when viewed from the first light emitting member 211, and suppresses the first light L1 emitted from the first light emitting member 211 from directly entering the first wall portion 261.

[0017] The second light-shielding wall 26b to the sixth light-shielding wall 26f excluding the first light-shielding wall 26a and the seventh light-shielding wall 26g are formed of the same material as the first light-shielding wall 26a or the second wall portion 262, have low thermal conductivity, and have light-shielding properties. Note that the main body material of the circuit board 25 is also formed of a material having low thermal conductivity and light-shielding properties. As a result, the spaces S1 and S2 in the housing member 29 are optically open only in the direction of the window member 27w of the lens member 27.

[0018] Referring to Figure 4, the lens member 27 has a central window member 27w and a peripheral outer frame member 27p, and is positioned overlapping the first light-emitting member 211 and the first light-receiving member 221 in a plan view or bottom view from the +Z direction. The lens member 27 is made of, for example, glass or resin, and has light transmittance that efficiently transmits the first light L1. The outer frame member 27p may also be made of light-shielding material. The window member 27w and the outer frame member 27p may be made of the same material or different materials. The lens member 27 has a heat conduction portion 27c in the outer frame member 27p, and the heat conduction portion 27c is exposed on its surface. The heat conduction portion 27c is thermally coupled to the first wall portion 261, and enables the detection of the temperature of the living body via the lens member 27 interposed between the light sensor 20a, which is the first light-emitting member 211 or the first light-receiving member 221, and the living body. The heat conduction portion 27c does not need to have the same shape as the upper end 26i of the first wall portion 261; it may be formed to be wider or narrower than the upper end 26i.

[0019] Returning to Figures 1 and 2, the control circuit 30 includes a microprocessor, operates the sensor device 20, measures pulse rate using the optical sensor 20a, and measures body temperature using the first temperature detection member 231. The control circuit 30 can display the measurement results from the sensor device 20 on the display 50. The control circuit 30 may also include a communication circuit and an antenna that enable digital communication with external devices.

[0020] The battery 40 supplies power to the sensor device 20 and the control circuit device 30, and operates the sensor device 20 and the control circuit device 30. The battery 40 may be a rechargeable secondary battery. In this case, a charging circuit and the like can be incorporated into the case 70 of the main unit 100a.

[0021] The display 50 is a liquid crystal panel or an LED display, and performs display operations under the control of the control circuit device 30, displaying various information such as measurement results. The display 50 is positioned in the case 70 on the opposite side from the detection-side opening 70a, relative to the circuit board 25, and is covered by a plate-shaped window member 70w that is light-transmitting and seals the front-side opening 70o.

[0022] Figure 5 illustrates a modified example of the bio-information measuring device 100. In this case, the upper end 26i of the first wall portion 261 is joined to the heat conduction portion 27c provided on the lens member 27 using solder paste or the like, and a joint portion 26n is formed between the first wall portion 261 and the heat conduction portion 27c.

[0023] The biological information measuring device 100 of the first embodiment described above comprises a first light-emitting member 211 that emits first light L1 toward a living body HB, a first light-receiving member 221 that receives the first light L1 from the living body HB, a housing member 29 that houses the first light-emitting member 211 and the first light-receiving member 221, and a first temperature-detecting member 231 that detects the temperature of the living body HB. The housing member 29 has a first wall portion 261 and a second wall portion 262 provided between the first light-emitting member 211 and the first light-receiving member 221. At least a part of the first wall portion 261 has higher thermal conductivity than the second wall portion 262 and is thermally coupled to the first temperature-detecting member 231. In the direction in which the first light-emitting member 211 and the first light-receiving member 221 are aligned, the first light-receiving member 221 is provided between the first wall portion 261 and the second wall portion 262.

[0024] In the above-described biological information measuring device, a second wall portion 262 is provided between the first light-emitting member 211 and the first light-receiving member 221, so that the first light L1 emitted from the first light-emitting member 211 does not directly enter the first light-receiving member. Furthermore, since at least a portion of the first wall portion 261 has higher thermal conductivity than the second wall portion and is thermally coupled to the first temperature detection member 231, the temperature of the biological body HB can be accurately detected via the first wall portion 261. In this configuration, the first light-receiving member 221 is positioned between the first wall portion 261 and the second wall portion 262 in the direction in which the first light-emitting member 211 and the first light-receiving member 221 are aligned. As a result, the first wall portion 261 is positioned behind the second wall portion 262 and the first light-receiving member 221 when viewed from the first light-emitting member 211. This suppresses the first light L1 emitted from the first light-emitting member 211 from directly entering the first wall portion 261, thereby improving the accuracy of temperature detection.

[0025] [Second Embodiment] The second embodiment of the biological information measuring device will now be described. Note that the second embodiment of the biological information measuring device is a partial modification of the first embodiment, and the parts common to both the first embodiment and the second embodiment will not be described.

[0026] Figure 6 is a bottom view illustrating the second embodiment of the biological information measuring device, and Figure 7 is a side cross-sectional view illustrating the second embodiment of the biological information measuring device. The second embodiment of the biological information measuring device 100 comprises a sensor device 20, a first light-emitting member 211, a first light-receiving member 221, a first temperature detection member 231, and a second temperature detection member 232.

[0027] The second temperature detection member 232, like the first temperature detection member 231, is a temperature sensor, for example, having a thermistor. The first temperature detection member 231 is directly connected to the seventh light-shielding wall 26g of the partition wall member 26, and the second temperature detection member 232 is directly connected to the fourth light-shielding wall 326d of the partition wall member 26. Here, the fourth light-shielding wall 326d, the adjacent second light-shielding wall 326b, and the similarly adjacent third light-shielding wall 326c are made of aluminum, copper, etc., and have higher thermal conductivity than the first light-shielding wall 26a or the second wall portion 262. These light-shielding walls 326b, 326c, and 326d are joined to each other, increasing the thermal conductivity between them. The seventh light-shielding wall 26g, the adjacent fifth light-shielding wall 326e, and the similarly adjacent sixth light-shielding wall 326f are made of aluminum, copper, etc., and have higher thermal conductivity than the first light-shielding wall 26a or the second wall portion 262. These light-shielding walls 326e, 326f, and 26g are joined to each other, increasing the thermal conductivity between them. The greater the distance between the first temperature detection member 231 and the second temperature detection member 232, the easier it is to improve the accuracy of temperature measurement.

[0028] A white paint layer 26q is formed on the inside of the second light-shielding wall 326b, the third light-shielding wall 326c, and the fourth light-shielding wall 326d, that is, on the surface facing the first light-emitting member 211, creating a white wall. By making the light-shielding walls 326b, 326c, and 326d white, the first light L1 emitted from the first light-emitting member 211 is reflected, and heating of the light-shielding walls 326b, 326c, and 326d by the first light-emitting member 211 can be suppressed.

[0029] In the above configuration, the seventh light-shielding wall 26g is the first wall portion 261 which is thermally coupled to the first temperature detection member 231, and the fourth light-shielding wall 326d is the third wall portion 263 which is thermally coupled to the second temperature detection member 232. The first wall portion 261 and the third wall portion 263 have higher thermal conductivity than the second wall portion 262. In this case as well, the first light-receiving member 221 is positioned between the first wall portion 261 and the second wall portion 262 in the ±X direction where the first light-emitting member 211 and the first light-receiving member 221 are aligned. Furthermore, the first light-emitting member 211 is provided between the second wall portion 262 and the third wall portion 263 in the ±X direction where the first light-emitting member 211 and the first light-receiving member 221 are aligned.

[0030] If the sensor device 20 includes a first temperature detection member 231 and a second temperature detection member 232, temperature detection can be performed at two locations. For example, the accuracy of temperature detection can be improved by averaging the body temperature obtained by the first temperature detection member 231 and the body temperature obtained by the second temperature detection member 232. In this case, the paint layer 26q on the light-shielding walls 326b, 326c, and 326d can suppress heating of the light-shielding walls 326b, 326c, and 326d, thereby improving the accuracy of temperature measurement by the second temperature detection member 232.

[0031] Figure 8 illustrates a modified example of the bio-information measuring device 100. In this case, the second light-shielding wall 26b and the third light-shielding wall 26c have lower thermal conductivity and light-shielding properties than the fourth light-shielding wall 326d or the third wall portion 263, similar to the first embodiment. Furthermore, the fifth light-shielding wall 26e and the sixth light-shielding wall 26f have lower thermal conductivity and light-shielding properties than the seventh light-shielding wall 26g or the first wall portion 261, similar to the first embodiment.

[0032] The white paint layer 26q formed on the second light-shielding wall 26b and the third light-shielding wall 26c can be omitted.

[0033] Figure 9 illustrates another modified example of the bio-information measuring device 100. In this case, a reflective member 26r is provided inside the second light-shielding wall 326b, the third light-shielding wall 326c, and the fourth light-shielding wall 326d, instead of the white paint layer 26q shown in Figure 6. The reflective member 26r is, for example, a metal film, but it may also be a thin plate provided independently of the light-shielding walls 326b, 326c, and 326d, or it may be arranged spaced inward from the light-shielding walls 326b, 326c, and 326d.

[0034] Figure 10 illustrates another modified example of the bio-information measuring device 100. In this case, the first temperature detection member 231 and the second temperature detection member 232 are spaced apart in the ±Y direction, which intersects the ±X direction in which the first light-emitting member 211 and the first light-receiving member 221 are aligned. The fifth light-shielding wall 326e, which is thermally coupled to the first temperature detection member 231, is the first wall portion 261, and the sixth light-shielding wall 326f, which is thermally coupled to the second temperature detection member 232, is the third wall portion 263. In this case, the first light-receiving member 221 is provided between the first wall portion 261 and the third wall portion 263 in the ±Y direction, which intersects the ±X direction in which the first light-emitting member 211 and the first light-receiving member 221 are aligned. The third wall portion 263 faces the first light-receiving member 221 and is provided in the ±Y direction intersecting the direction in which the first light-emitting member 211 and the first light-receiving member 221 are aligned.

[0035] In the second embodiment of the biological information measuring device 100, the first temperature detection member 231 and the second temperature detection member 232 are arranged separately, which improves the accuracy of temperature detection.

[0036] In particular, the biological information measuring device 100 shown in Figure 10 comprises a first light-emitting member 211 that emits a first light L1 toward a living body HB, a first light-receiving member 221 that receives the first light L1 from the living body HB, a housing member 29 that houses the first light-emitting member 211 and the first light-receiving member 221, and a first temperature-detecting member 231 that detects the temperature of the living body HB. The housing member 29 has a first wall portion 261 and a second wall portion 262 provided between the first light-emitting member 211 and the first light-receiving member 221. At least a portion of the first wall portion 261 has higher thermal conductivity than the second wall portion 262 and is thermally coupled to the first temperature-detecting member 231. In a direction intersecting the direction in which the first light-emitting member 211 and the first light-receiving member 221 are aligned, the first wall portion 261 is provided so as to be aligned with the first light-receiving member 221.

[0037] In the above-described biological information measuring device, a second wall portion 262 is provided between the first light-emitting member 211 and the first light-receiving member 221, thereby suppressing the direct incidence of the first light L1 emitted from the first light-emitting member 211 to the first light-receiving member. Furthermore, since at least a portion of the first wall portion 261 has higher thermal conductivity than the second wall portion 262 and is thermally coupled to the first temperature detection member, the temperature of the biological body HB can be accurately detected via the first wall portion 261. Here, since the first wall portion 261 is provided so as to be aligned with the first light-receiving member 221 in a direction intersecting the direction in which the first light-emitting member 211 and the first light-receiving member 221 are aligned, the first wall portion 261 can be positioned behind the second wall portion 262 when viewed from the first light-emitting member 211, thereby suppressing the direct incidence of the first light L1 emitted from the first light-emitting member 211 to the first wall portion 261 and improving the accuracy of temperature detection.

[0038] [Third Embodiment] The third embodiment of the biological information measuring device will now be described. Note that the third embodiment of the biological information measuring device is a partial modification of the first embodiment of the biological information measuring device.

[0039] Figure 11 is a bottom view illustrating the third embodiment of the biological information measuring device. The third embodiment of the biological information measuring device 100 includes, as a light sensor 20a, a first light-emitting member 211, a second light-emitting member 212, a third light-emitting member 213, a first light-receiving member 221, and a second light-receiving member 222.

[0040] The first light-emitting member 211 is a light-emitting diode that emits green light as the first light L1, the second light-emitting member 212 is a light-emitting diode that emits red light with a longer wavelength than the first light L1 as the second light L2, and the third light-emitting member 213 is a light-emitting diode that emits infrared light with a longer wavelength than the second light L2 as the third light L3. On the other hand, the first light-receiving member 221 is a photodiode that receives the first light L1, which is the green reflected light, and outputs a signal corresponding to the intensity of the first light L1, and the second light-receiving member 222 is a photodiode that receives the second light L2 and third light L3, which are the red or infrared reflected light, and outputs a signal corresponding to the intensity of the second light L2 and third light L3.

[0041] An eighth light-shielding wall 26h is positioned between the first light-receiving member 221 and the second light-receiving member 222, and extends parallel to the seventh light-shielding wall 26g. The eighth light-shielding wall 26h is a shielding body that separates the first light-receiving member 221 and the second light-receiving member 222.

[0042] The first light-emitting member 211, the second light-emitting member 212, the third light-emitting member 213, etc., can be operated at different timings, and the second light-receiving member 222 can detect the intensity ratio of the red and infrared reflected light, namely the second light L2 and the third light L3. By measuring in this way, which combines the green first light L1, the red second light L2, and the infrared third light L3, it becomes possible to measure not only pulse rate but also blood oxygen saturation.

[0043] The first wall portion 261, which is related to temperature measurement, is positioned behind the second wall portion 262 and the first light-receiving member 221, etc., when viewed from the first light-emitting member 211, etc. The second wall portion 262 is positioned between the light-emitting members 211, 212, 213 and the first light-receiving member 221. The second light-receiving member 222 for long wavelengths is positioned between the first light-receiving member 221 for short wavelengths and the first wall portion 261.

[0044] Figure 12 illustrates a modified example of the bio-information measuring device 100. In this case, the eighth light-shielding wall 26h functions as the first wall portion 261. That is, the eighth light-shielding wall 26h, or the first wall portion 261, is positioned between the first light-receiving member 221 and the second light-receiving member 222, and has higher thermal conductivity than the second wall portion 262. Consequently, the first wall portion 261, which is related to temperature measurement, is positioned behind the second wall portion 262 and the first light-receiving member 221 when viewed from the first light-emitting member 211, etc. In other words, the first temperature detection member 231 is less susceptible to thermal influence from the first light-emitting member 211.

[0045] Figure 13 illustrates another modified example of the bio-information measuring device 100. In this case, a second temperature detection member 232 is added, similar to the second embodiment. A portion 426e of the fifth light-shielding wall 26e on the side of the first light-emitting member 211 functions as a third wall portion 263 and is thermally coupled to the second temperature detection member 232. The first wall portion 261 and the third wall portion 263 have higher thermal conductivity than the second wall portion 262. The first wall portion 261 and the third wall portion 263 are arranged such that light L1, L2, L3 from the three light-emitting members 211, 212, and 213 are not directly incident on them, considering them as a group.

[0046] Figure 14 illustrates another modified example of the bio-information measuring device 100. In this case, the arrangement of the third wall portion 263 is different compared to Figure 13. A portion 426f of the sixth light-shielding wall 26f on the side of the first light-emitting member 211 functions as the third wall portion 263 and is thermally coupled to the second temperature detection member 232.

[0047] [Variations and other variations] Although the present invention has been described in reference to the embodiments described above, the present invention is not limited to the embodiments described above, and can be implemented in various forms without departing from the spirit thereof, for example, the following modifications are also possible.

[0048] The biometric information measuring device 100 is not limited to a wristwatch-like wearable device that measures pulse rate, etc., but can also be applied to smartwatches, activity trackers, and other devices with a variety of functions.

[0049] The biometric information measuring device 100 is not limited to one worn on the wrist; it can be any device in which the sensor device 20 is in close contact with any part of the body.

[0050] In a specific embodiment, the first biological information measuring device comprises a first light-emitting member that emits first light toward a living body, a first light-receiving member that receives first light from the living body, a housing member that houses the first light-emitting member and the first light-receiving member, and a first temperature-detecting member that detects the temperature of the living body, wherein the housing member has a first wall portion and a second wall portion provided between the first light-emitting member and the first light-receiving member, and at least a part of the first wall portion has higher thermal conductivity than the second wall portion and is thermally coupled with the first temperature-detecting member, and in the direction in which the first light-emitting member and the first light-receiving member are aligned, the first light-receiving member is provided between the first wall portion and the second wall portion.

[0051] In the above-described biological information measuring device, a second wall is provided between the first light-emitting member and the first light-receiving member, so that the first light emitted from the first light-emitting member does not directly enter the first light-receiving member. Furthermore, since at least a portion of the first wall has higher thermal conductivity than the second wall and is thermally coupled to the first temperature detection member, the temperature of the living body can be accurately detected through the first wall. Here, in the direction in which the first light-emitting member and the first light-receiving member are aligned, the first light-receiving member is provided between the first wall and the second wall. As a result, the first wall is positioned behind the second wall and the first light-receiving member when viewed from the first light-emitting member, so that the first light emitted from the first light-emitting member does not directly enter the first wall, and the accuracy of temperature detection can be improved.

[0052] In a specific embodiment, the second biological information measuring device comprises a first light-emitting member that emits first light toward a living body, a first light-receiving member that receives first light from the living body, a housing member that houses the first light-emitting member and the first light-receiving member, and a first temperature-detecting member that detects the temperature of the living body, wherein the housing member has a first wall portion and a second wall portion provided between the first light-emitting member and the first light-receiving member, and at least a part of the first wall portion has higher thermal conductivity than the second wall portion and is thermally coupled with the first temperature-detecting member, and the first wall portion is provided so as to be aligned with the first light-receiving member in a direction intersecting the direction in which the first light-emitting member and the first light-receiving member are aligned.

[0053] In the above-described biological information measuring device, a second wall is provided between the first light-emitting member and the first light-receiving member, thereby suppressing the direct incidence of the first light emitted from the first light-emitting member onto the first light-receiving member. Furthermore, since at least a portion of the first wall has higher thermal conductivity than the second wall and is thermally coupled to the first temperature detection member, the temperature of the living body can be accurately detected through the first wall. Here, since the first wall is provided so as to be aligned with the first light-receiving member in a direction intersecting the direction in which the first light-emitting member and the first light-receiving member are aligned, the first wall can be positioned behind the second wall when viewed from the first light-emitting member, thereby suppressing the direct incidence of the first light emitted from the first light-emitting member onto the first wall and improving the accuracy of temperature detection.

[0054] In specific aspects, the device includes a lens member that overlaps the first light-emitting member and the first light-receiving member and is in contact with the living body. The lens member has a heat-conducting portion, and the first wall portion and the heat-conducting portion of the lens are thermally coupled. In this case, the temperature of the living body can be detected through the lens member interposed between the light sensor, which is the first light-emitting member and the first light-receiving member, and the living body.

[0055] In specific aspects, the first temperature detection member is positioned opposite the first light-emitting member and the first light-receiving member, with respect to the housing member. In this case, there is no need to secure space for the first temperature detection member in the measurement area where the first light-emitting member and the first light-receiving member (the light sensor) are located, making space saving easier.

[0056] In specific aspects, the housing member includes a second temperature detection member, and at least a portion of the third wall has higher thermal conductivity than the second wall and is thermally coupled to the second temperature detection member. The first and second temperature detection members allow temperature detection at two locations, improving the accuracy of temperature detection.

[0057] In specific aspects, the third wall portion is provided in a direction intersecting the direction in which the first light-emitting member and the first light-receiving member are aligned. This allows temperature to be detected through at least a portion of the third wall portion, which can be positioned so that the first light emitted by the first light-emitting member does not directly enter it.

[0058] In specific terms, the first light-receiving member is provided between the first wall and the third wall in the intersecting direction. In this case, the temperature can be detected at a distance greater than the width of the first light-receiving member, thus improving the accuracy of temperature detection.

[0059] In specific aspects, the third wall is a white wall, and the first light-emitting member is provided between the second wall and the third wall in the direction in which the first light-emitting member and the first light-receiving member are aligned. Because the third wall is a white wall, it reflects the first light emitted from the first light-emitting member, and the temperature can be detected by utilizing the third wall, which is located at a different position from the second wall.

[0060] In specific aspects, the device includes a reflective member that reflects the first light, the first light-emitting member is provided between the second wall and the third wall in the direction in which the first light-emitting member and the first light-receiving member are aligned, and the reflective member is provided between the first light-emitting member and the third wall in the direction in which the first light-emitting member and the first light-receiving member are aligned. By providing the reflective member between the second wall and the third wall, the first light emitted from the first light-emitting member can be reflected, and the temperature can be detected by utilizing the third wall, which is located at a different position from the second wall.

[0061] In specific aspects, the device includes a second light-emitting member that emits a second light with a different wavelength band than the first light, and a second light-receiving member that receives the second light. This enables the measurement of biological information corresponding to multiple wavelength bands, and allows for accurate monitoring of temperature during such measurements.

[0062] In specific aspects, the second light has a longer wavelength than the first light, the second light-emitting member is located on the opposite side of the second wall from the first light-receiving member, and the second light-receiving member is provided between the first light-receiving member and the first wall. In this case, it is possible to suppress the incidence of light emitted by each light-emitting member onto the first wall.

[0063] In specific aspects, the first wall portion is provided between the first light-receiving member and the second light-receiving member. In this case, ambient light incident on the first wall portion is suppressed, thereby reducing the influence of ambient light on temperature detection. [Explanation of Symbols]

[0064] 20...Sensor device, 20a...Light sensor, 25...Circuit board, 25a...Bottom surface, 25u...Top surface, 26...Partition member, 26a~26g...Light-shielding wall, 26i...Upper end, 26j...Lower end, 26k...Connecting part, 26n...Joint part, 26q...Paint layer, 26r...Reflective member, 27...Lens member, 27c...Heat conduction part, 27p...Outer frame member, 27w...Window member, 29...Housing member, 30...Control circuit device, 40...Battery, 50...Display, 70...Case, 70a...Opening, 70w...Window member, 100...Biometric information measuring device, 100a...Main unit, 100b...Squirrel Band, 211...First light-emitting member, 212...Second light-emitting member, 213...Third light-emitting member, 221...First light-receiving member, 222...Second light-receiving member, 231...First temperature-detecting member, 232...Second temperature-detecting member, 261...First wall section, 262...Second wall section, 26a, 326b, 326c, 326d, 326e, 326f, 26g...Light-shielding walls, 426e...Part of the fifth light-shielding wall 26e, 426f...Part of the sixth light-shielding wall 26f, DL...Irradiated light, SL...Reflected light, L1, L2, L3...First light, Second light, Third light, S1, S2...Space, OB...Target, HB...Living organism

Claims

1. A first light-emitting component that emits a first light towards living organisms, A first light-receiving member that receives the first light from a living organism, A housing member that houses the first light-emitting member and the first light-receiving member, It comprises a first temperature detection member for detecting the temperature of a living organism, The housing member has a first wall portion and a second wall portion provided between the first light-emitting member and the first light-receiving member. At least a portion of the first wall has higher thermal conductivity than the second wall and is thermally coupled to the first temperature sensing member. In a direction in which the first light-emitting member and the first light-receiving member are aligned, the first light-receiving member is provided between the first wall portion and the second wall portion, in a biological information measuring device.

2. A first light-emitting component that emits a first light towards living organisms, A first light-receiving member that receives the first light from a living organism, A housing member that houses the first light-emitting member and the first light-receiving member, It comprises a first temperature detection member for detecting the temperature of a living organism, The housing member has a first wall portion and a second wall portion provided between the first light-emitting member and the first light-receiving member. At least a portion of the first wall has higher thermal conductivity than the second light-shielding wall and is thermally coupled to the first temperature detection member. A biological information measuring device wherein the first wall portion is provided so as to be aligned with the first light-receiving member in a direction intersecting the direction in which the first light-emitting member and the first light-receiving member are aligned.

3. The first light-emitting member and the first light-receiving member are overlapped by a lens member that comes into contact with a living body, The biological information measuring device according to any one of claims 1 and 2, wherein the lens member has a heat conduction portion, and the first wall portion and the heat conduction portion of the lens are thermally coupled.

4. The biological information measuring device according to claim 3, wherein the first temperature detection member is provided in the opposite direction between the first light-emitting member and the first light-receiving member, with reference to the housing member.

5. A second temperature detection member is provided, The aforementioned housing member includes a third wall portion, The biological information measuring device according to claim 4, wherein at least a portion of the third wall has higher thermal conductivity than the second wall and is thermally coupled to the second temperature sensing member.

6. The biological information measuring device according to claim 5, wherein the third wall portion is provided in a direction intersecting the direction in which the first light-emitting member and the first light-receiving member are aligned.

7. The biological information measuring device according to claim 6, wherein the first light-receiving member is provided between the first wall portion and the third wall portion in the intersecting direction.

8. The third wall section is a white wall, The biological information measuring device according to claim 5, wherein the first light-emitting member is provided between the second wall portion and the third wall portion in the direction in which the first light-emitting member and the first light-receiving member are aligned.

9. The device comprises a reflective member that reflects the first light, The first light-emitting member is provided between the second wall portion and the third wall portion in the direction in which the first light-emitting member and the first light-receiving member are aligned. The biological information measuring device according to claim 5, wherein the reflective member is provided between the first light-emitting member and the third wall in the direction in which the first light-emitting member and the first light-receiving member are aligned.

10. The biological information measuring device according to claim 4, comprising a second light-emitting member that emits a second light with a wavelength band different from that of the first light, and a second light-receiving member that receives the second light.

11. The second light has a longer wavelength than the first light. The second light-emitting member is located on the opposite side of the first light-receiving member, with the second wall portion in between. The biological information measuring device according to claim 10, wherein the second light-receiving member is provided between the first light-receiving member and the first wall portion.

12. The biological information measuring device according to claim 10, wherein the first wall portion is provided between the first light-receiving member and the second light-receiving member.

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