Optical data sensing device of a bio-information measurement device capable of improving motion artifacts
By setting an opaque isolation element and controlling the emission direction of light in the optical sensing device, the measurement inaccuracy problem caused by motion artifacts is solved, and the accuracy of biological information measurement is improved.
Patent Information
- Application Number
- CN202111543268.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2021-07-12
- Filing Date
- 2021-12-16
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2041-12-16
AI Technical Summary
When traditional smart wearable devices measure biological information, the motion artifact problem caused by motion interference has not been effectively solved, affecting the measurement accuracy.
By adopting an optical sensing device, by providing an opaque isolation element between the optical sensor and the light emitting device, the emission direction and path of light are controlled, the reception of unnecessary light is reduced, and the measurement accuracy is improved by using light in different directions or wavelengths.
It effectively reduces the impact of motion artifacts on biological information measurement and improves the accuracy and accuracy of measurement.
Smart Images

Figure CN115590467B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to an optical data sensing device of a bioinformation measurement device, and particularly to an optical data sensing device of a bioinformation measurement device that can improve the motion artifact problem. Background Art
[0002] In recent years, intelligent wearable electronic devices such as smart watches and smart bracelets have become increasingly popular. Such intelligent wearable electronic devices usually have the function of measuring bioinformation (such as blood pressure, heart rate). When a user wears an intelligent wearable electronic device, the user's movements (such as jogging, walking...) may interfere with the bioinformation measurement, or be called motion artifact. However, traditional intelligent wearable electronic devices do not have an appropriate mechanism to improve the motion artifact problem. Summary of the Invention
[0003] Therefore, an object of the present invention is to disclose an optical data sensing device used in a bioinformation measurement device, which can reduce unnecessary light received by the optical sensor.
[0004] Another object of the present invention is to disclose an optical data sensing device used in a bioinformation measurement device, which can increase the accuracy of bioinformation measurement.
[0005] An embodiment of the present invention discloses an optical data sensing device used in a bioinformation measurement device, which is characterized in that it includes: an optical sensor; a first light emitting device for emitting first light, the traveling direction of the first light being away from the optical sensor; and a first opaque isolation element located between the optical sensor and the first light emitting device for reducing the first light sensed by the optical sensor.
[0006] Another embodiment of the present invention discloses an optical sensing device used in a bioinformation measurement device, which is characterized in that it includes: an optical sensor; a first light emitting device emitting first light in a first direction; a second light emitting device emitting second light in a second direction, the first direction being different from the second direction; a first opaque isolation element located between the optical sensor and the first light emitting device and between the optical sensor and the second light emitting device for reducing the first light and the second light sensed by the optical sensor.
[0007] According to the above embodiments, since the optical sensor can be prevented from receiving unnecessary light, the inaccuracy of bioinformation measurement caused by motion artifacts can be improved. In addition, since light with different emission directions or light with different wavelengths is applied, the accuracy of bioinformation measurement can be further improved. Brief Description of the Drawings
[0008] Figure 1 FIG. 1 shows a schematic diagram of an optical data sensing device according to an embodiment of the present invention.
[0009] Figure 2 FIG. 2 shows another perspective view of the optical data sensing device according to an embodiment of the present invention. Figure 1 FIG. 3 shows a schematic diagram of an optical data sensing device according to another embodiment of the present invention.
[0010] Figure 3 FIG. 4 shows another perspective view of the optical data sensing device according to an embodiment of the present invention.
[0011] Figure 4 FIG. 5 shows a schematic diagram of an optical data sensing device according to an embodiment of the present invention. Figure 3 FIG. 6 shows another perspective view of the optical data sensing device according to an embodiment of the present invention.
[0012] Figure 5 And Figure 6 FIG. 7 shows a schematic diagram of an optical data sensing device according to different embodiments of the present invention.
[0013] Figure 7 FIG. 8 shows a schematic diagram of an opaque isolation element according to an embodiment of the present invention.
[0014] Figure 8 And Figure 9 FIG. 9 shows a schematic diagram of an optical data sensing device including optical sensing devices with different light emission directions according to different embodiments of the present invention.
[0015] Among them, the reference numerals are explained as follows:
[0016] 100, 300, 500, 600, 800 optical data sensing device
[0017] 101 optical sensor
[0018] 103_1, 103_2 cover
[0019] 105_1, 105_2 light transmissive part
[0020] 107 sensor cover
[0021] 109 substrate
[0022] 111 surface
[0023] 200 biological information measurement device
[0024] L1 first light
[0025] L2 second light
[0026] L3 third light
[0027] L4 fourth light
[0028] Additional light
[0029] LS1 First light-emitting device
[0030] LS2 Second light-emitting device
[0031] LS3 Third light-emitting device
[0032] LS4 Fourth light-emitting device
[0033] LSa Additional light-emitting device
[0034] OC1 First opaque isolation element
[0035] OC2 Second opaque isolation element
[0036] OCa Additional opaque isolation element
[0037] PL1, PLs Planes
[0038] P1, P2 Protrusions
[0039] W1 Width
[0040] W2 Minimum width
[0041] θa, θ1, θ2 Included angles Detailed implementation manners
[0042] The content of the present invention will be described below with multiple embodiments. The "first", "second" and similar descriptions in the following description are only used to define different elements, parameters, data, signals or steps, and are not used to limit their order. For example, the first device and the second device may have the same structure but be different devices.
[0043] Figure 1 The schematic diagram of an optical data sensing device 100 according to an embodiment of the present invention is shown. The optical data sensing device 100 can be used in but not limited to a biological information measurement device. The biological information measurement device can measure biological information such as heart rate, blood pressure or blood oxygen concentration. In the following embodiments, the biological information measurement device is a smart watch. However, the biological information measurement device can be any other type of electronic device.
[0044] As Figure 1As shown, the optical data sensing device 100 includes an optical sensor 101 (such as an image sensor), a cover 103_1, and a first light-emitting device LS1. The first light-emitting device LS1 emits a first light L1. The traveling direction of the first light L1 is away from the optical sensor 101. Various mechanisms can be applied to achieve the effect of "the first light-emitting device LS1 emits the first light L1 away from the optical sensor 101". For example, such an effect can be achieved through the emission direction of the first light L1, or through the structure of the cover 103_1. A detailed description of how to achieve such effects will be explained later.
[0045] The first light-impervious isolation element OC1 is located between the optical sensor 101 and the first light-emitting element LS1 to reduce the first light L1 received by the optical sensor 101. The first light L1 in "the first light L1 received by the optical sensor 101" can refer to the first light L1 directly from the first light-emitting device L1, or the reflected light of the first light L1 from the first light-emitting device LS1, or the scattered light of the first light L1 from the first light-emitting device LS1. In addition, in Figure 1 the embodiments and other embodiments, the light-emitting device has a light source. However, the light-emitting device may include at least one light source and at least one lens, and the lens is used to determine the emission direction / range (direction or range) of the light from the light source. In such an embodiment, the light source emits an initial light and the lens is used to refract / expand (refract or expand) the initial light to generate the first light L1. The emission direction of the first light L1 can be changed by changing the structure of the first light-emitting device LS1.
[0046] In one embodiment, the first light-impervious isolation element OC1 can completely block the passage of light. In another embodiment, the light can partially penetrate the first light-impervious isolation element OC1. In this way, the first light-impervious isolation element OC1 can reduce the first light L1 received by the optical sensor 101.
[0047] In one embodiment, the first light-impervious isolation element OC1 is used to determine the emission direction of the first light L1 such that the included angle θ1 between the emission direction of the first light L1 and the sensing surface of the optical sensor 101 is greater than 90°. In addition, in another embodiment, the included angle θ between the surface of the first light-impervious isolation element OC1 facing the first light-emitting element LS1 and the substrate 109 a is less than 90°. More specifically, the angle θ1 faces the sensor cover 107.
[0048] The cover 103_1 covers the first light-emitting device LS1. The cover 103_1 includes at least one light-transmitting part ( Figure 1Only one light-transmitting portion 105_1) is shown, such that the first light L1 can pass through the light-transmitting portion 105_1 away from the optical sensor 101. The emission direction of the first light L1 can be changed by changing the position or material of the light-transmitting portion.
[0049] According to Figure 1 the embodiment shown, since the first light-emitting device LS1 emits the first light L1 away from the optical sensor 101 and the first opaque isolation element OC1 reduces the first light L1 received by the first optical sensor 101, even if the user wearing the biometric measurement device has some strenuous exercises, such as jogging or weight training, it is possible to prevent the light L1 from entering the optical sensor 101 before entering the user's skin. Moreover, since the biometric information is measured based on the first light L1 received by the optical sensor 101, it is possible to prevent the biometric measurement from being interfered by motion artifacts.
[0050] The optical data sensing device 100 is not limited to including only one light-emitting device and only one opaque isolation element. For example, in Figure 1 the embodiment shown, the optical data sensing device 100 further includes an additional light-emitting device LSa, an additional opaque isolation element OCa, and a cover 105_2. Note that the term "additional" here is only used to distinguish from the term "first" and does not imply any limitation. The relationship between the additional light-emitting element LSa, the additional opaque isolation element OCa, and the cover 105_2 is the same as the relationship between the first light-emitting element LS1, the first opaque isolation element OC1, and the cover 105_2. Additionally, the functions of the additional opaque isolation element OCa and the cover 105_2 are the same as the functions of the first opaque isolation element OC1 and the cover 105_1. Therefore, for the sake of brevity, the detailed description of the additional light-emitting device LSa, the additional opaque isolation element OCa, and the cover 105_2 is omitted here. Note that the emission direction of the first light L1 from the first light-emitting element LS1 and the emission direction of the additional light La from the additional light-emitting element LSa may be the same or different. Also, it should be understood that the optical data sensing device disclosed in the present invention may have more than two opaque isolation elements and more than two light-emitting devices. In one embodiment, the first opaque isolation element OC1 and the additional opaque isolation element OCa are cylinders with a width gradually decreasing from top to bottom, but it is not limited thereto.
[0051] In one embodiment, the first light-emitting element LSl and the additional light-emitting element LSa are symmetrically arranged with respect to the optical sensor 101. Additionally, in another embodiment, the distance between the optical sensor 101 and the first light-emitting element LSl is greater than or less than the distance between the optical sensor 101 and the additional light-emitting element LSa.
[0052] The distance between the first light-emitting element LSl / additional light-emitting element LSa and the optical sensor 101, as well as the distance between the first light-emitting element LSl / additional light-emitting element LSa and the first opaque isolation element OCl / additional opaque isolation component OCa, may have different effects on different operations. For example, if there is a small distance between the first light-emitting element LS1 / additional light-emitting element LSa and the first opaque isolation element OC1 / additional opaque isolation element OCa, better isolation can be provided when the user has strong movement. On the contrary, if there is a large distance between the first light-emitting element LS1 / additional light-emitting element LSa and the first opaque isolation element OC1 / additional opaque isolation element OCa, better isolation can be provided when the intensity of the user's movement action is low.
[0053] In one embodiment, the optical data sensing device 100 further includes a sensor cover 107 to cover the optical sensor 101. The sensor cover 107 can be a cover independent of the covers 105_1, 105_2. In addition, the sensor cover 107 and the covers 105_1, 105_2 can be integrated into a single cover.
[0054] In one embodiment, the optical data sensing device 100 is disposed on a substrate 109. In addition, the projected image of the first light-emitting device LSl onto the substrate 109 does not overlap with the projected image of the optical sensor 101 onto the substrate 109. In one embodiment, the substrate 109 is located inside the biometric measurement device and may include at least one element of the biometric measurement device. In another embodiment, the substrate 109 is inside the biometric measurement device and is independent of the elements of the biometric measurement device.
[0055] In one embodiment, the covers 103_1 and 103_2 protrude from the surface 111 of the biometric measurement device. Figure 2 Illustrated according to an embodiment of the present invention, Figure 1 A schematic diagram of another perspective of the optical data sensing device shown. Please refer to Figure 1 and Figure 2 to more clearly understand the concept of the present invention. As Figure 2 shown, the surface 111 is the back of the biometric measurement device 200 (e.g., a smart watch). In addition, as Figure 2 shown, the optical data sensing device 100 protrudes from the surface 111 such that the light-transmitting portions 105_1, 105_2 are exposed at the surface 111 and the light-emitting devices inside the biometric measurement device 200 can emit light outward through the light-transmitting portions 105_1, 105_2.
[0056] In addition, in Figure 1Among them, the plane PLl that emits the first light Ll outward and the plane PLs on which the optical sensor 101 receives light are different planes. In one embodiment, the plane PL1 is parallel to the tangent plane of a part of the light-transmitting portion 105_1, and the first light L1 is emitted outward from the tangent plane of this part of the light-transmitting portion 105_1. Alternatively, the plane PL1 is the surface on the light-transmitting portion 105_1 from which the first light L1 is emitted outward. In addition, in one embodiment, the plane PLs is the sensing surface of the optical sensor 101 for receiving light.
[0057] In addition, in one embodiment, a color filter is disposed on the surface of the light-transmitting portion 105_1 from which the first light is emitted outward, or on the sensing surface of the optical sensor 101.
[0058] The color filter can define an angular range through which light of a specific wavelength can pass. For example, the color filter can define the angular range through which light of the first wavelength can pass as 30° - 50°, and can also define the angular range through which light of the second wavelength can pass as 20° - 60°. That is to say, for the color filter, the angular range through which light of the first wavelength can pass is smaller than the angular range through which light of the second wavelength can pass. Therefore, a color filter can be provided to limit the angular range of light that the optical sensor 101 can receive. In this way, some reflected light from the skin that may cause noise can be prevented from directly entering the optical sensor 101.
[0059] However, the optical data sensing device 100 is not limited to protruding from the surface 111. Figure 3 The schematic diagram of an optical data sensing device according to another embodiment of the present invention is shown. Figure 4 Shown is according to an embodiment of the present invention, Figure 3 The schematic diagram of another perspective of the shown optical data sensing device. Please refer to Figure 3 and Figure 4 to more clearly understand the concept of the present invention. As Figure 3 and Figure 4 shown, the optical data sensing device 300 is located inside the biological information measuring device 200, and the light-transmitting portions 105_1, 105_2 are still exposed on the surface 111. In this way, the light-emitting device inside the biological information measuring device 200 can emit light outward through the light-transmitting portions 105_1, 105_2.
[0060] In Figure 1 the embodiment, the emission directions of the first light Ll and the additional light La are not perpendicular to the surface 111. Additionally, in Figure 3 the embodiment, because the optical data sensing device 300 is inside the biological information measuring device 200, the emission directions of the first light L1 and the additional light La (i.e., the aforementioned traveling directions) are perpendicular to the surface 111. However, the light emission direction is not limited to Figure 1 andFigure 3 The illustrated embodiments. Moreover, the positions and / or dimensions of the light-transmitting portions 105_1 and 105_2 can be changed corresponding to the emission direction of light.
[0061] The structures of the cover bodies 103_1 and 103_2 and the emission direction of light are not limited to the above embodiments. Figure 5 FIG. shows a schematic diagram of an optical data sensing device according to another embodiment of the present invention. As Figure 5 shown, in the optical data sensing device 500, the emission directions of the first light L1 and the additional light La are perpendicular to the surface 111. Additionally, in Figure 5 the embodiment, the light-transmitting portions 105_1 and 105_2 are light guide plates and cover all the cover bodies 103_1 and 103_2. Therefore, the structures of the cover bodies 103_1 and 103_2 and the light emission direction can be changed according to different requirements. Such variations should also fall within the scope of the present invention.
[0062] Furthermore, the shapes of the first opaque isolation element OCl and the additional opaque isolation element OCa are not limited to the above embodiments. Any shape that can prevent the light emitted by the light-emitting element from being received by the optical sensor also belongs to the scope of the present invention.
[0063] Figure 6 FIG. shows a schematic diagram of an optical data sensing device 100 according to another embodiment of the present invention. As Figure 6 shown, in the optical data sensing device 600, the first opaque isolation element OC1 includes at least one protrusion ( Figure 6 only one protrusion P1 is shown in ). The protrusion P1 is used to partially or completely block the optical sensor 101 from receiving the first light L1 and partially or completely block the first light L1 emitted from the first light-emitting element LS1. Similarly, the additional opaque isolation element OCa in the optical data sensing device 600 includes at least one protrusion ( Figure 6 only one protrusion P2 is shown in ). The protrusion P2 is used to partially or completely block the optical sensor 101 from receiving the additional light La and partially or completely block the additional light La emitted from the additional light-emitting device LSa. Note that although Figure 6 the illustrated embodiment applies Figure 1 the illustrated embodiment, Figure 6 the light-emitting elements LS1 and LSa shown in can have any other structure or position.
[0064] In one embodiment, the protrusions P1 and P2 are respectively located at the top of the first opaque isolation element OC1. And, the protrusion facing the light-emitting element (e.g., the protrusion P1) protrudes from one side of the first opaque isolation element OC1. The additional opaque isolation element OCa can follow the same rule.
[0065] Figure 7 Shows a schematic diagram of an opaque isolation element according to an embodiment of the present invention. As Figure 7 shown, the width W1 of the protrusion P1 is greater than the minimum width W2 of the first opaque isolation element OC1. The additional opaque isolation element OCa also follows such a rule.
[0066] In the foregoing embodiment, the first opaque isolation element OCl and the additional opaque isolation element OCa are located between only one optical sensor 101 and a light-emitting element. However, the first opaque isolation element OCl and the additional opaque isolation element OCa can be respectively located between multiple optical sensors 101 and a light-emitting element.
[0067] Figure 8 and Figure 9 Shows a schematic diagram of an optical data sensing device including an optical sensing device with different light-emitting directions according to different embodiments of the present invention. Please also note that, for ease of illustration, Figure 8 and Figure 9 some elements are not shown in Figure 8 , such as the cover bodies 103_1 and 103_5. The optical data sensing device 800 includes an optical sensor 101, a first light-emitting device LS1, a second light-emitting device LS2, and a first opaque isolation element OC1. The first light-emitting element LS1 is used to emit a first light L1 in a first direction, and the second light-emitting element LS2 is used to emit a second light L2 in a second direction different from the first direction. In
[0068] the embodiment of
[0069]
[0070] , the first direction is parallel to the substrate 109, and the second direction is perpendicular to the substrate 109.
[0068] The first opaque isolation element OCl is located between the optical sensor 101 and the first light-emitting element LSl, and is also located between the optical sensor 101 and the second light-emitting element LS2. The first opaque isolation element OC1 is used to reduce the first light L1 and the second light L2 received by the optical sensor 101.
[0069] It should also be understood that the "first light L1, second light L2" in the description of "the first light L1, second light L2 received by the optical sensor 101" can represent the first light L1, second light L2 directly from the first light-emitting element L1, second light-emitting element L2, or the reflected light of the first light L1, second light L2 directly from the first light-emitting element L1, second light-emitting element L2, or the scattered light of the first light L1, second light L2 directly from the first light-emitting element L1, second light-emitting element L2.
[0070] In one embodiment, the first light L1 and the second light L2 are not emitted simultaneously. Moreover, the first light L1 and the second light L2 are respectively used for different functions. In one embodiment, when a biological information measuring device including the optical data sensing device 800 calculates the heart rate, the second light emitting device LS2 emits the second light L2 for calculating the heart rate, but the first light emitting device LS1 does not emit the first light L1. In addition, in one embodiment, when a biological information measuring device including the optical data sensing device 800 calculates the blood oxygen saturation, the first light emitting device LS1 emits the first light L1 for calculating the blood oxygen saturation, but the second light emitting device LS2 does not emit the second light L2.
[0071] In one embodiment, more than one optical sensor can be used. For example, two optical sensors with different color filters can be used. In this case, the first light L1 and the second light L2 can be emitted simultaneously.
[0072] In addition to the above biological information, the first light L1 and the second light L2 can be respectively used in modes with different noise levels. For example, when a biological information measuring device including the optical data sensing device 800 operates in a low-noise mode, the second light emitting device LS2 emits the second light L2, but the first light emitting device LS1 does not emit the first light L1. In one embodiment, the low-noise mode means that the user wearing the biological information measuring device is not moving, not jogging, or not running. Also, for example, when a biological information measuring device including the optical data sensing device 800 operates in a high-noise mode, the first light emitting device LS1 emits the first light L1, but the second light emitting device LS2 does not emit the second light L2. In one embodiment, the high-noise mode means that the user wearing the biological information measuring device including the optical data sensing device 800 is moving, jogging, or running. Since different movements may cause different light responses to light emitted in different directions (with different traveling directions), the inaccuracy of biological information measurement caused by motion artifacts can be further improved by light emitted in different directions.
[0073] In another embodiment, the first light L1 and the second light L2 are still not emitted simultaneously. However, the first light L1 and the second light L2 are used for the same function instead of different functions. For example, a biological information measuring device including an optical data sensing device 800 determines its wearing state based on the difference between the amount of the first light L1 received by the optical sensor 101 and the amount of the second light L2 received by the optical sensor 101. Specifically, when the user does not wear the biological information measuring device including the optical data sensing device 800, since neither the first light L1 nor the second light L2 is reflected by the user's skin, the difference between the amount of the first light L1 received by the optical sensor 101 and the amount of the second light L2 is small. In addition, when the user wears the biological information measuring device including the optical data sensing device 800, since the first light L1 and the second light L2 are reflected by the user's skin and the emission directions of the first light L1 and the second light L2 are different, the difference between the amount of the first light L1 received by the optical sensor 101 and the amount of the second light L2 is large.
[0074] Please refer to again Figure 8 , in one embodiment, the optical data sensing device 800 is disposed on the substrate 109 described above. The projected image of the first light-emitting device LS1 onto the substrate 109 does not overlap with the projected image of the optical sensor 101 onto the substrate 109, and the projected image of the second light-emitting element LS2 onto the substrate does not overlap with the projected image of the optical sensor 101 onto the substrate 109.
[0075] The optical data sensing device 800 may further include a third light-emitting device LS3, a fourth light-emitting device LS4, and a second opaque isolation element OC2. The third light-emitting element LS3 emits a third light L3 in a third direction. The fourth light-emitting element LS4 emits a fourth light L4 in a fourth direction different from the third direction. In one embodiment, the third direction is parallel to the substrate 109 described above, and the fourth direction is perpendicular to the substrate 109.
[0076] The second opaque isolation element OC2 is located between the optical sensor 101 and the third light-emitting element LS3, and is located between the optical sensor 101 and the fourth light-emitting element LS4, for reducing the third light L3 and the light L4 received by the optical sensor. The relationship and operation of the third light-emitting element LS3, the fourth light-emitting element LS4, and the second opaque isolation element OC2 are the same as those of the first light-emitting element LS1, the second light-emitting element LS2, and the first opaque isolation element OC1, and will not be described in detail herein.
[0077] In one embodiment, the first light L1 and the third light L3 have different wavelengths, while the second light L2 and the fourth light L4 have different wavelengths. For example, the first light L1 and the second light L2 are infrared lights, while the third light L3 and the fourth light L4 are blue lights. In this case, the first light L1 and the third light L3 are selectively emitted in different modes, and the second light L2 and the fourth light L4 are selectively emitted in different modes. For example, if the skin of a user wearing a biometric measurement device including an optical data sensing device 800 is fair, the biometric information of the user is measured using the first light L1 and the second light L2, rather than using the third light L3 and the fourth light L4. In addition, if the skin color of a user wearing a biometric measurement device including an optical data sensing device 800 is dark, the third light L3 and the fourth light L4 are used to measure the biometric information of the user, but the first light L1 and the second light L2 are not used to measure the biometric information of the user.
[0078] In Figure 8 the embodiment, the first direction is parallel to the substrate 109 and the second direction is perpendicular to the substrate 109. However, the emission directions of the first light Ll and the second light L2 are not limited to these examples. In Figure 9 the embodiment, the first light L1 is Figure 8 offset counterclockwise by some compared to Figure 8 and the second light L2 is offset clockwise by some compared to Figure 9 The first light L1 and the second light L2 in Figure 8 and the first light L1 and the second light L2 in Figure 9 can still be used for the same function. In other words, as long as the minimum angle θ1 between the first direction and the substrate 109 is less than the minimum angle θ2 between the second direction and the substrate 109, Figure 8 the first light L1 and the second light L2 in
[0079] According to the above embodiments, since unnecessary light received by the optical sensor can be prevented, the inaccuracy of biometric measurement caused by motion artifacts can be improved. In addition, since light with different emission directions or light with different wavelengths is applied, the accuracy of biometric measurement can be further improved.
[0080] The above description is only the preferred embodiments of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims
1. An optical data sensing device of a biological information measuring device capable of improving motion artifacts, which is used in a biological information measuring device, and is characterized in that, Comprising: An optical sensor disposed on the surface of a substrate; A first light-emitting device for emitting a first light, the traveling direction of the first light being away from the optical sensor; And A first opaque isolation element disposed on the surface of the substrate, between the optical sensor and the first light-emitting device, for reducing the first light sensed by the optical sensor; The first light-emitting device is disposed on the surface of the first opaque isolation element and does not contact the surface of the substrate.
2. The optical data sensing device according to claim 1, wherein, Further comprising: A cover covering the first light-emitting device, wherein the cover includes a light-transmitting portion such that the first light can pass through the light-transmitting portion away from the optical sensor.
3. The optical data sensing device as described in claim 2, wherein, The cover protrudes or is located within the surface of the biometric measurement device.
4. The optical data sensing device according to claim 2, wherein, The traveling direction of the first light is not perpendicular to the surface.
5. The optical data sensing device according to claim 1, wherein, Wherein the first light-emitting device includes: A light source for emitting an initial light; and A lens for refracting the initial light to generate the first light.
6. The optical data sensing device according to claim 1, wherein, Further comprising: An additional light-emitting element for emitting additional light, the traveling direction of the additional light being away from the optical sensor, wherein the additional light-emitting element does not overlap with the optical sensor and the first light-emitting element; And An additional opaque isolation element located between the optical sensor and the additional light-emitting element, for reducing the additional light sensed by the optical sensor.
7. The optical data sensing device as described in claim 1, wherein The first opaque isolation element includes a protruding portion for blocking the first light that would be received by the optical sensor and the first light emitted by the first light-emitting element.
8. The optical data sensing device according to claim 7, wherein, The width of the protruding portion is greater than the minimum width of the first opaque isolation element.
9. The optical data sensing device according to claim 1, wherein The plane from which the first light is emitted and the plane of the optical sensor for receiving light are different planes.
10. The optical data sensing device according to claim 1, wherein, Further comprising a color filter, the color filter being located on the surface of the light-transmitting portion from which the first light is emitted or on the sensing surface of the optical sensor, wherein the sensing surface is for receiving light.
11. An optical sensing device of a biological information measuring device capable of improving motion artifacts, which is used in a biological information measuring device, and is characterized in that, Comprising: An optical sensor; A first light-emitting device emitting a first light in a first direction; A second light-emitting device emitting a second light in a second direction, the first direction being different from the second direction; And A first opaque isolation element located between the optical sensor and the first light-emitting device and between the optical sensor and the second light-emitting device, for reducing the first light and the second light sensed by the optical sensor; The first light and the second light are not emitted simultaneously; Wherein the optical sensing device is disposed on a substrate, and the minimum angle between the first direction and the substrate is less than the minimum angle between the second direction and the substrate; Wherein, when the biometric measurement device operates in a low-noise mode, the second light-emitting device emits the second light, but the first light-emitting device does not emit the first light.
12. The optical sensing device according to claim 11, wherein, When the biometric measurement device calculates the heart rate, the second light-emitting device emits the second light to calculate the heart rate, but the first light-emitting device does not emit the first light.
13. The optical sensing device according to claim 11, wherein When the biometric measurement device calculates the blood oxygen concentration, the first light-emitting device emits the first light to calculate the blood oxygen concentration, but the second light-emitting device does not emit the second light.
14. The optical sensing device according to claim 11, wherein, The low-noise mode means that the user wearing the biometric measurement device does not move or does not jog.
15. The optical sensing device according to claim 11, wherein When the bio-information measuring device operates in a high-noise mode, the first light-emitting device emits the first light, but the second light-emitting device does not emit the second light.
16. The optical sensing device according to claim 15, wherein The high-noise mode represents that the user wearing the bio-information measuring device is moving or jogging.
17. The optical sensing device according to claim 11, wherein The bio-information measuring device determines the wearing state of the bio-information measuring device based on the difference in the amount of the first light received by the optical sensor and the amount of the second light received.
18. The optical sensing device according to claim 11, wherein, Further comprising: A third light-emitting device that emits a third light in a third direction; A fourth light-emitting device that emits a fourth light in a fourth direction, the third direction being different from the fourth direction; A second opaque isolation element located between the optical sensor and the third light-emitting device and between the optical sensor and the fourth light-emitting device for reducing the third light and the fourth light sensed by the optical sensor; Wherein the first light and the third light have different wavelengths, and the second light and the fourth light have different wavelengths; Wherein the first light and the third light are selectively emitted in different modes, and the second light and the fourth light are selectively emitted in different modes.
19. An optical sensing device of a biological information measurement device capable of improving motion artifacts, used in a biological information measurement device, characterized in that, Comprising: An optical sensor; A first light-emitting device that emits a first light in a first direction; A second light-emitting device that emits a second light in a second direction, the first direction being different from the second direction; And A first opaque isolation element located between the optical sensor and the first light-emitting device and between the optical sensor and the second light-emitting device for reducing the first light and the second light sensed by the optical sensor; Wherein the first light and the second light are not emitted simultaneously; Wherein the optical sensing device is disposed on a substrate, and the minimum angle between the first direction and the substrate is smaller than the minimum angle between the second direction and the substrate; When the bio-information measuring device operates in a high-noise mode, the first light-emitting device emits the first light, but the second light-emitting device does not emit the second light.
Citation Information
Patent Citations
Method and apparatus for detecting a physiological parameter
US20020007114A1
Portable Biometric Monitoring Devices and Methods of Operating Same
US20140107493A1
Apparatus and method for detecting biological information
US20170000350A1
Dual Optical Path Sensor Module
US20200085316A1