CN218068607U - Light detection system and intelligent wearable device - Google Patents

Abstract

The utility model discloses a light detection system and intelligent wearing equipment, this light detection system is including the apron, light emitting component and light receiving component, the apron includes first portion and second portion, the second portion is at least partly around the first portion setting, and first portion and second portion are configured to at least partial optoisolation, light emitting component establishes in the apron below, light emitting component is used for sending the light that passes first portion, light receiving component establishes in the apron below, light receiving component is used for receiving the light that passes the second portion. The light detection system can well prevent light rays emitted by the light emitting part from entering the light receiving part under the condition that the light rays are not reflected by the surface to be detected, and measurement accuracy is improved.

Description

Light detection system and intelligent wearable device

Technical Field

The utility model relates to a field smart machine technical field especially relates to an optical detection system and intelligent wearing equipment.

Background

With the improvement of living standard, people begin to pay more and more attention to health monitoring, in recent years, along with the coming of intelligent wearing hot tide, smart watches on the market are also more and more equipped with heart rate monitoring function. One of the ways of heart rate monitoring by a watch is optical heart rate monitoring.

The optical heart rate monitoring adopted by the wristwatch is based on PPG (photo plethysmography) heart rate monitoring, called OHRM (optical heart rate monitor), and its principle is: a light beam emitted from the watch to the skin of the wrist, the light beam impinging on the skin of the wrist, a portion of which is absorbed by blood in the blood vessel and a portion of which is reflected back into the watch. Due to the beating of the heart, the blood volume in the blood vessel changes rhythmically, with the greater the blood volume, the more light is absorbed and the less light is reflected back. Therefore, the intensity of the reflected light detected by the wristwatch changes with the change in the blood volume in the blood vessel in accordance with the rhythm of the heart beat, and therefore the wristwatch can recognize the fluctuation of the heart rate based on the detected intensity of the reflected light.

A watch light detection system generally includes a light emitting unit, a light receiving unit, and a transparent cover plate located outside the light emitting unit and the light receiving unit. The light emitting member of a wristwatch is typically an LED lamp that emits light, typically including red, infrared and green light. The light emitted by the LED lamp of the light emitting unit of the watch needs to penetrate through the transparent cover plate to reach the skin of the wrist, and the heart rate of the human body is measured. But because the divergence angle of LED lamp is very big to transparent cover plate possesses the top surface of certain thickness and apron and is the arc curved surface setting, incides to the inside light of transparent cover plate and takes place the reflection easily when shining transparent cover plate's top surface, thereby incides to light receiving element along transparent cover plate's internal reflection, measures the consumption that introduces the noise and still can promote intelligent wrist-watch for the rhythm of the heart.

SUMMERY OF THE UTILITY MODEL

A first object of the utility model is to provide a light detection system, this light detection system can avoid the light that the light emission piece sent to get into the light receiving piece under the condition of the reflection of waiting to detect the face betterly, has promoted measurement accuracy.

A second object of the utility model is to provide an intelligence is dressed and is set up, and this intelligence wearing equipment can avoid the light that light emission spare sent to get into light receiving spare under the condition of human skin reflection not betterly, has promoted measurement accuracy.

For realizing the above technical effect, the technical scheme of the utility model as follows:

the utility model discloses an optical detection system, include: a cover plate comprising a first portion and a second portion, the second portion disposed at least partially around the first portion, and the first portion and the second portion configured to be at least partially optically isolated; a light emitting member disposed under the cover plate, the light emitting member for emitting light passing through the first portion; a light receiving part disposed under the cover plate, the light receiving part for receiving light passing through the second portion.

In some embodiments, the first portion and the second portion are provided separately.

In some specific embodiments, the second portion has a fitting hole, the first portion fits in the fitting hole, and a light shielding layer is provided on an inner wall of the fitting hole.

In some more specific embodiments, the fitting hole includes a first hole and a second hole, the diameter of the first hole is larger than the diameter of the second hole, the first portion is fitted in the first hole, and a light shielding layer is provided on an inner wall of the first hole, an inner wall of the second hole, and a step surface between the first hole and the second hole.

In some embodiments, the cover plate further comprises a light blocking wall connected between the first portion and the second portion, and the first portion, the second portion and the light blocking wall are integrally formed.

In some embodiments, the light detecting system further comprises a first retaining wall located between the light emitting element and the light receiving element.

In some embodiments, the light detection system further includes a second blocking wall located radially outside the light receiving element.

In some embodiments, the light detection system further comprises a lens disposed under the cover plate, the lens is located between the cover plate and the light emitting element and the light receiving element, and the lens covers the light receiving element and an area where the light emitting element is located.

In some specific embodiments, the light detection system further comprises: a first light shielding member provided between the lens and the cover plate and corresponding to an area between the light receiving part and the light emitting part; and/or: the second light shading part is arranged between the lens and the cover plate, one part of the second light shading part is arranged corresponding to the area where the light receiving part is arranged, and the other part of the second light shading part is arranged corresponding to the radial outer side of the area where the light receiving part is arranged; or: the inner peripheral wall of the second light shielding member is flush with the outer peripheral wall of the light receiving member.

The utility model discloses still include an intelligence and dress the setting, including lid shell and the foreland light detection system, be equipped with the cooperation groove on the lid shell, light detection system establishes the cooperation inslot.

The utility model discloses an optical detection system's beneficial effect owing to be provided with part or whole ground light isolation at the first portion of apron and second portion, can avoid incidenting to the light of first portion under the condition of outside detection face reflection not, directly propagate to the second portion then by the phenomenon emergence that the light receiving piece received along the inside of apron, has reduced optical detection system's measuring error betterly, promotes optical detection system's measurement accuracy.

The utility model discloses an intelligence wearing equipment's beneficial effect, owing to have the preceding light detection system, can avoid incidenting to apron central part's light under the condition of human skin reflection not, directly propagate to the apron edge part along the inside of apron then by the phenomenon emergence that light receiving piece received, reduced intelligent wearing equipment's measuring error betterly, promote intelligent wearing equipment's measurement accuracy.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is a schematic cross-sectional view of a light detection system according to a first embodiment of the present invention;

fig. 2 is a schematic cross-sectional view of a light detection system according to a second embodiment of the present invention.

Fig. 3 is the utility model discloses intelligence wearing equipment's of embodiment structural schematic.

Reference numerals are as follows:

1. a cover plate; 11. a first portion; 12. a second portion; 121. a mating hole; 1211. a first hole; 1212. a second hole; 13. a light blocking wall; 2. a light emitting member; 3. a light receiving element; 4. a substrate; 5. a lens; 51. a first region; 52. a second region; 6. a first retaining wall; 7. a second retaining wall; 8. a first light shielding member; 9. a second light shielding member; 10. a light-shielding layer; 100. a cover shell; 110. the mating grooves.

Detailed Description

In order to make the technical problems, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further explained below by means of specific embodiments in conjunction with the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between descriptive features, non-sequential, non-trivial and non-trivial. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The specific structure of the optical detection system according to the embodiment of the present invention is described below with reference to fig. 1 to 2.

The utility model discloses a light detection system, as shown in fig. 1-2, this light detection system including apron 1, light emitting part 2 and light receiving part 3, apron 1 includes first portion 11 and second portion 12, second portion 12 at least partially encircles first portion 11 setting, and first portion 11 and second portion 12 are configured to at least partial optoisolation, light emitting part 2 is established in apron 1 below, light emitting part 2 is used for emitting the light that passes first portion 11, light receiving part 3 establishes in apron 1 below, light receiving part 3 is used for receiving the light that passes second portion 12. It will be appreciated that in actual operation, since the cover plate 1 comprises the first and second portions 11 and 12 which are at least partially optically isolated, and the light emitter 2 is used to emit light through the first portion 11, light which has passed through the first portion 11 after being incident into the cover plate 1 will not enter the second portion 12, even if the light is reflected at the top wall of the cover plate 1, and will not enter the second portion 12. That is, during operation, light emitted by the light emitting element 2 can only encounter the surface to be detected (which may be human skin) after passing through the first portion 11, and is reflected by the surface to be detected and received by the light receiving element 3 through the second portion 12. That is, the light detection system of the embodiment can better prevent the light emitted by the light emitting element 2 from entering the light receiving element 3 without being reflected by the surface to be detected, thereby improving the measurement accuracy.

It should be added that, in some embodiments, the cover plate 1 is made of a transparent material, such as glass or plastic; in another embodiment, the cover plate 1 is composed of both a transparent material and an opaque material. Specifically, a transparent material may be disposed above the light emitting element 2 and the light receiving element 3, and an opaque material may be disposed in other areas; alternatively, a transparent material is provided in the middle portion covering the light receiving element 3 and the light emitting element 2 directly above, and an opaque material is provided around the transparent material.

In some embodiments, the cover plate 1 is circular, the first portion 11 is provided as a central portion of the cover plate 1, and the second portion 12 is provided as a surrounding portion around the first portion 11. Therefore, the appearance consistency of the cover plate 1 can be better improved, and the aesthetic degree of the optical detection system is improved.

Alternatively, the light emitting member 2 is positioned at the center of the first portion 11 in the vertical direction. This ensures that the light emitted by the light emitter 2 emerges uniformly from the first portion 11.

Alternatively, the light receiving element 3 is arranged directly below the second portion 12 of the cover plate 1. This ensures that the light receiving element 3 stably receives the light incident from the second portion 12.

Further alternatively, the light receiving part 3 includes a plurality of light receiving elements arranged to be centered symmetrically with respect to the light emitting part 2. Thus, the reflected light from the surface to be detected can be received as much as possible, and the phenomenon that the photodetection system cannot normally operate due to the detection result abnormality of some of the light receiving elements caused by the incorrect mounting manner of the photodetection system can be prevented.

Preferably, the number of light receiving elements is 4, 6, 8 or 12. Of course, the number of the light receiving elements can be specifically selected according to actual needs.

In some embodiments, the light emitting element 2 and the light receiving element 3 are provided on the same substrate 4. Thus, the optical detection system is convenient to assemble, and the volume of the optical detection system is reduced.

In some embodiments, the light emitting member 2 preferably emits light of three wavelength bands, such as red light, infrared light, and green light. When the light detection system of this embodiment is used for intelligent wearing equipment, just can measure information such as user's blood pressure, blood oxygen, rhythm of the heart simultaneously to promote intelligent wearing equipment's user satisfaction.

Alternatively, the light emitting members 2 may be integrally provided as one, and the single light emitting member 2 may emit red light, infrared light, and green light at the same time. Thus, the structure of the optical detection system can be simplified, and the size of the optical detection system can be further reduced.

Alternatively, the light emitting member 2 may be plural, the plural light emitting members 2 may be arranged in central symmetry, or the plural light emitting members 2 may be distributed at different positions below the first portion 11. The plurality of light emitting members 2 can increase the monitoring effect of the light detection system.

In some embodiments, the first portion 11 and the second portion 12 are provided separately. It can be understood that, after the first portion 11 and the second portion 12 are separately disposed, only a light-tight layer needs to be disposed therebetween to realize that the first portion 11 and the second portion 12 are configured to be at least partially optically isolated, so that the assembly is convenient, and the assembly efficiency of the optical detection system is improved.

Optionally, the opaque layer is formed as an opaque adhesive layer, and the opaque adhesive layer can block light incident on the first portion 11 of the cover plate 1 from propagating to the second portion 12 through the inside, so that it is ensured that light passing through the second portion 12 of the cover plate 1 comes from reflected light of the surface to be detected as much as possible, and the first portion 11 and the second portion 12 can be firmly connected, thereby ensuring the waterproof performance of the cover plate 1.

Preferably, the material of the opaque adhesive layer is a material that reflects light emitted from the light emitting member 2, and the material enables light incident on the opaque adhesive layer to be reflected back into the first portion 11 of the cover plate 1 and then to be emitted from the top surface of the first portion 11. For example, the light emitting member 2 emits green light having a wavelength of 490 to 570nm, red light having a wavelength of 600 to 800nm, and infrared light having a wavelength of 800 to 1000nm, and the material of the opaque adhesive layer is preferably a material capable of reflecting light having a wavelength band covering the above range, that is, a material capable of reflecting light having a wavelength of 490 to 1000 nm. The arrangement of the opaque adhesive layer made of the reflecting material can ensure that light emitted by the light emitting element 2 is emitted from the top surface of the first part 11 of the cover plate 1 to the surface to be detected as much as possible, thereby effectively reducing the loss of energy in the light transmission process and ensuring the endurance of the light detection system.

Preferably, the opaque adhesive layer is a thermo-sensitive adhesive layer. Thereby, the first part 11 and the second part 12 can be connected together very easily during the actual assembly process. Of course, in other embodiments of the present invention, the opaque adhesive layer may also be another adhesive layer or another material layer according to actual needs, and is not limited to the thermosensitive adhesive layer.

In some embodiments, as shown in fig. 1, the second portion 12 has a fitting hole 121, the first portion 11 is fitted in the fitting hole 121, and the light shielding layer 10 is disposed on an inner wall of the fitting hole 121. It will be appreciated that placing the first portion 11 in the fitting hole 121 can improve the stability of the connection between the first portion 11 and the second portion 12, thereby improving the strength of the entire cover plate 1, and at the same time, can better ensure the appearance consistency of the cover plate 1. The light shielding layer 10 provided on the inner wall of the fitting hole 121 can ensure the light shielding property of the first portion 11 and the second portion 12.

In some more specific embodiments, as shown in FIG. 1, the mating bore 121 includes a first bore 1211 and a second bore 1212, the first bore 1211 having a diameter greater than a diameter of the second bore 1212, the first portion 11 fitting within the first bore 1211. It can be understood that the matching hole 121 is formed as a stepped hole, and the first portion 11 is placed in one stepped hole, so that on one hand, the connection stability of the first portion 11 and the second portion 12 can be improved, the phenomenon that the first portion 11 falls out of the second portion 12 after long-term use is avoided, on the other hand, the consistency of the appearance of the cover plate 1 is better ensured, and the aesthetic degree of the whole optical detection system is improved.

Optionally, the depth of the first hole 1211 is equal to the thickness of the first portion 11, so that the appearance uniformity of the cover plate 1 can be ensured, and the aesthetic degree of the whole light detection system can be improved.

Optionally, the depth of the first hole 1211 is less than the thickness of the first portion 11, and the top surfaces of the first portion 11 and the second portion 12 of the cover plate 1 are maintained consistent in appearance by subsequent machining, thereby ensuring the aesthetic appearance of the light detection system.

Optionally, as shown in fig. 1, the inner wall of the first hole 1211 and the step surface between the first hole 1211 and the second hole 1212 are both provided with a light shielding layer 10. Therefore, the optical isolation of the first part 11 and the second part 12 is well ensured, so that light rays emitted by the light emitting element 2 are prevented from entering the light receiving element 3 without being reflected by the surface to be detected, and the measurement accuracy is improved.

Further optionally, the light shielding layer 10 is an opaque adhesive layer. Therefore, the connection stability of the first part 11 and the second part 12 is further improved on the premise that the optical isolation of the first part 11 and the second part 12 is ensured, and the waterproof performance of the cover plate 1 can be ensured.

It should be added that, when the light shielding layer 10 is an opaque adhesive layer, for easy assembly, an opaque adhesive layer (for example, a thermal sensitive adhesive) is first coated on a step surface between the first hole 1211 and the second hole 1212, and then the first portion 11 of the cover plate 1 is pressed onto the step surface; then, by a dispensing process, an opaque adhesive, such as an opaque resin, preferably an epoxy resin, is injected into the gap between the first portion 11 and the second portion 12 of the cover 1 (i.e., the inner wall surface of the first hole 1211), thereby completing the assembly process of the cover 1.

Optionally, a light shielding layer 10 is disposed on an inner wall of the second hole 1212. Therefore, the optical isolation of the first part 11 and the second part 12 is well ensured, so that light rays emitted by the light emitting element 2 are prevented from entering the light receiving element 3 without being reflected by the surface to be detected, and the measurement accuracy is improved.

Further alternatively, the light shielding layer 10 disposed on the inner wall of the second hole 1212 may be a material capable of absorbing light emitted from the light emitting member, such as a dark mask or an ink mask. It can be understood that when the light emitted from the light emitting element 2 is irradiated to the inner wall of the second hole 1212, the light can be absorbed by the light shielding layer 10, so as to avoid the light from entering the position of the light receiving element 3 through the inner wall of the second hole 1212.

Further alternatively, the light shielding layer 10 provided on the inner wall of the second hole 1212 is a material that can reflect light emitted from the light emitting member 2. It can be understood that when the light emitted from the light emitting element 2 irradiates the inner wall of the second hole 1212, the light can be reflected on the inner wall to be emitted, so that more light is incident on the surface to be detected through the first portion 11 of the cover plate 1, and at the same time, the light can be prevented from being incident on the position of the light receiving element 3 through the inner wall of the second hole 1212.

In some embodiments, as shown in fig. 1-2, the light detection system further comprises a first wall 6, and the first wall 6 is located between the light emitting element 2 and the light receiving element 3. It will be appreciated that the added first wall 6 serves to completely block the direct light transmission between the light emitting element 2 and the light receiving element 3, thereby preventing the light emitted from the light emitting element 2 from directly entering the light receiving element 3.

Optionally, a first retaining wall 6 is provided around the light emitting member 2. Therefore, the phenomenon that the light rays emitted by the light emitting element 2 directly enter the light receiving element 3 can be well avoided.

Alternatively, the first retaining wall 6 is made of a light absorbing material or a light reflecting material for absorbing or reflecting light in a wavelength range covering the wavelength of light emitted from the light emitting member 2. Thereby, the phenomenon that the light emitted from the light emitting element 2 directly enters the light receiving element 3 can be further prevented.

Alternatively, both ends of the first retaining wall 6 may be respectively stopped against the cover plate 1 and the base plate 4 on which the light emitting element 2 and the light receiving element 3 are mounted. Thereby, the first blocking wall 6 can completely separate the light emitting element 2 and the light receiving element 3, thereby further preventing the light emitted from the light emitting element 2 from directly entering the light receiving element 3.

Further alternatively, an opaque film layer is disposed between the first retaining wall 6 and the cover plate 1, and the additional opaque film layer can prevent the light emitted from the light emitting element 2 from entering the second portion 12 of the cover plate 1 through the gap between the first retaining wall 6 and the cover plate 1, so as to be received by the light receiving element 3. It should be noted that the opaque film layer can be a dark film or an ink mask or made of other opaque materials.

Preferably, the opaque film layer extends out of the thickness range of the first retaining wall 6 in the radial direction. It can be understood that the opaque film layer extends beyond the thickness range of the first retaining wall 6 in the radial direction, which can improve the light blocking range of the opaque film layer, thereby greatly avoiding the phenomenon that the light emitted from the light emitting element 2 directly enters the light receiving element 3.

In some embodiments, as shown in fig. 1-2, the light detection system further includes a second retaining wall 7, and the second retaining wall 7 is located at the radial outer side of the light receiving element 3. It can be understood that the phenomenon that the external light enters the light receiving part 3 can be better avoided by the additionally arranged second baffle wall 7, so that the environmental error is reduced, and the detection precision of the light detection system is improved.

Alternatively, both ends of the second retaining wall 7 may be respectively stopped against the cover plate 1 and the base plate 4 on which the light emitting element 2 and the light receiving element 3 are mounted. Therefore, the light receiving element 3 can be separated from the external environment in the radial direction, and the phenomenon that external light enters the light receiving element 3 is better avoided.

Further alternatively, the second barrier 7 is bonded to the substrate 4 by an opaque adhesive layer. Therefore, the connection stability of the second barrier 7 and the substrate 4 is improved.

In some embodiments, as shown in fig. 1-2, the light detection system further includes a lens 5, the lens 5 is disposed under the cover plate 1, the lens 5 is located between the cover plate 1 and the light emitting element 2 and the light receiving element 3, and the lens 5 covers the light receiving element 3 and the area where the light emitting element 2 is located. It can be understood that the lens 5 is added to make the light emitted from the light emitting element 2 form a converging effect to pass through the cover plate 1, so as to increase the proportion of the light passing through the cover plate 1. That is, the addition of the lens 5 corresponds to an increase in the emission angle of the light emitting member 2. Similarly, because the angle of the reflected light reflected from the surface to be detected is large, and the light receiving element 3 requires that the incident angle of the light incident on the light receiving element 3 is as small as possible, the added lens 5 reduces the angle of the part of the light with the large incident angle in the reflected light of the surface to be detected, which is incident on the light receiving element 3, and meets the receiving requirement of the light receiving element 3, so that the proportion of the reflected light received by the light receiving element 3 is increased, and the light detection effect is improved.

Preferably, the lens 5 is a fresnel lens.

Alternatively, as shown in fig. 1-2, the lens 5 includes a first region 51 and a second region 52, and the second region 52 is spaced apart from the first region 51. The first region 51 is located directly below the first portion 11 and the second region 52 is located directly below the second portion 12. Therefore, the first area 51 can improve the proportion of light rays passing through the cover plate 1, the second area 52 can improve the proportion of reflected light received by the light receiving element 3, and the second area 52 and the first area 51 are arranged at intervals, namely the second area 52 and the first area 51 are not interfered with each other, so that the phenomenon that the light rays of the first area 51 and the light rays in the second area 52 are interfered with each other is avoided.

In some specific embodiments, as shown in fig. 1-2, the light detection system further includes a first light-shielding member 8, and the first light-shielding member 8 is disposed between the lens 5 and the cover plate 1 and is disposed corresponding to an area between the light receiving member 3 and the light emitting member 2. It can be understood that, after the lens 5 is added, when the light emitted from the light emitting element 2 irradiates on the lens 5, the light may directly enter the area where the light receiving element 3 is located under the reflection action of the lens 5, thereby improving the detection error of the light detection system. In this embodiment, the first light shielding member 8 is disposed corresponding to the area between the light receiving element 3 and the light emitting element 2, and the first light shielding member 8 can better prevent the light emitted by the light emitting element 2 from entering the area where the light receiving element 3 is located under the reflection action of the lens 5, so as to improve the accuracy of the light detection system. It should be noted that the material of the first light-shielding member 8 may be selected according to actual needs, and the material of the first light-shielding member 8 is not specifically limited herein.

In some specific embodiments, as shown in fig. 1-2, the light detection system further includes a second light shielding member 9, the second light shielding member 9 is disposed between the lens 5 and the cover plate 1, a portion of the second light shielding member 9 is disposed corresponding to the area where the light receiving element 3 is located, and another portion is disposed corresponding to the radially outer side of the area where the light receiving element 3 is located; or: the inner peripheral wall of the second light-shielding member 9 is disposed flush with the outer peripheral wall of the light-receiving member 3. It can be understood that after the lens 5 is added, when external ambient light irradiates on the lens 5, it is possible to directly enter the area where the light receiving element 3 is located under the reflection action of the lens 5, and in this embodiment, the added second light shielding element 9 can better prevent the ambient light from entering the area where the light receiving element 3 is located under the reflection action of the lens 5, thereby improving the precision of the light detection system. It should be noted that the material of the second light-shielding member 9 may be selected according to actual needs, and the material of the second light-shielding member 9 is not specifically limited herein.

In some embodiments, as shown in fig. 2, the cover plate 1 further includes a light blocking wall 13, the light blocking wall 13 is connected between the first portion 11 and the second portion 12, and the first portion 11, the second portion 12 and the light blocking wall 13 are integrally formed. Therefore, the integrated cover plate 1 has better strength and more beautiful appearance than the cover plate 1 of the separate body. It should be additionally noted that the light blocking wall 13 may be formed by a laser engraving process, or different material layers may be disposed on the cover plate 1, and the cover plate 1 may be formed integrally by a co-molding process, or the cover plate 1 may be formed by various injection molding processes using different materials. That is, in the present embodiment, the integrated cover plate 1 having the light blocking wall 13 may be processed by selecting a process according to actual needs.

Optionally, the light detection system further includes a first retaining wall 6, the first retaining wall 6 is located between the light emitting element 2 and the light receiving element 3, and the light blocking wall 13 is disposed corresponding to the first retaining wall 6. From this, under first barricade 6 and the combined action of the wall 13 that is in the light, can furthest avoid the light that light emission piece 2 sent directly to get into light receiving piece 3, promoted optical detection system's detection precision.

Preferably, the light blocking wall 13 is disposed outside the side of the first retaining wall 6 away from the light emitting member 2, whereby the emission angle of the light emitting member 2 can be raised to some extent, thereby indirectly raising the detection accuracy of the light detection system.

The light detection system of two embodiments of the present invention is described below with reference to fig. 1-2.

The first embodiment is as follows:

as shown in fig. 1, the light detecting system includes a cover plate 1, a light emitting element 2, a light receiving element 3, a substrate 4, a lens 5, a first retaining wall 6, a second retaining wall 7, a first light shielding element 8 and a second light shielding element 9, the cover plate 1 includes a first portion 11 and a second portion 12 separately disposed, the second portion 12 has a fitting hole 121, the fitting hole 121 includes a first hole 1211 and a second hole 1212, the diameter of the first hole 1211 is larger than that of the second hole 1212, the first portion 11 fits in the first hole 1211 and abuts against a step between the first hole 1211 and the second hole 1212, and light shielding layers 10 are disposed on an inner wall of the first hole 1211, a step surface between the first hole 1211 and the second hole 1212, and an inner wall of the second hole 1212. The light emitting element 2 is disposed under the cover plate 1, the light emitting element 2 for emitting light passing through the first portion 11, the light receiving element 3 is disposed under the cover plate 1, the light receiving element 3 includes a plurality of light receiving elements symmetrically disposed centering on the light emission, and the light receiving element 3 for receiving light passing through the second portion 12. The substrate 4 is located below the cover plate 1, and the light emitting element 2 and the light receiving element 3 are both provided on the substrate 4. The lens 5 is arranged between the cover plate 1 and the light emitting and receiving elements 2, 3, the lens 5 comprising a first area 51 and a second area 52, the second area 52 being arranged spaced apart from the first area 51. The first region 51 is located directly below the first portion 11 and the second region 52 is located directly below the second portion 12. The first wall 6 is located between the light emitting element 2 and the light receiving element 3, both ends of the first wall 6 are respectively stopped on the substrate 4 and the lens 5, and the first wall 6 covers a gap between the first area 51 and the second area 52. The second retaining wall 7 is located radially outside the light receiving element 3 and the lens 5. The first light-shielding member 8 is disposed between the lens 5 and the cover plate 1, and is disposed corresponding to an area between the light receiving element 3 and the light emitting element 2. The second light shielding member 9 is disposed between the lens 5 and the cover plate 1, and a part of the second light shielding member 9 is disposed corresponding to an area where the light receiving element 3 is located, and the other part is disposed corresponding to a radially outer side of the area where the light receiving element 3 is located.

The second embodiment:

as shown in fig. 2, the light detecting system includes a cover plate 1, a light emitting element 2, a light receiving element 3, a substrate 4, a lens 5, a first barrier 6, a second barrier 7, a first light shielding element 8, and a second light shielding element 9, wherein the cover plate 1 includes a first portion 11, a second portion 12, and a light blocking wall 13, the light blocking wall 13 is connected between the first portion 11 and the second portion 12, and the first portion 11, the second portion 12, and the light blocking wall 13 are integrally formed. The light emitting element 2 is disposed under the cover plate 1, the light emitting element 2 for emitting light passing through the first portion 11, the light receiving element 3 is disposed under the cover plate 1, the light receiving element 3 includes a plurality of light receiving elements symmetrically disposed centering on the light emission, and the light receiving element 3 for receiving light passing through the second portion 12. The base plate 4 is located below the cover plate 1, and the light emitting element 2 and the light receiving element 3 are both disposed on the base plate 4. The lens 5 is disposed between the cover plate 1 and the light emitting element 2 and the light receiving element 3, and the lens 5 includes a first region 51 and a second region 52, and the second region 52 is disposed spaced apart from the first region 51. The gap between the first region 51 and the second region 52 is provided corresponding to the light blocking wall 13. The first wall 6 is located between the light emitting element 2 and the light receiving element 3, both ends of the first wall 6 are respectively stopped on the substrate 4 and the lens 5, and the first wall 6 covers a gap between the first area 51 and the second area 52. The second retaining wall 7 is located radially outside the light receiving element 3 and the lens 5. The first light-shielding member 8 is disposed between the lens 5 and the cover plate 1, and is disposed corresponding to an area between the light receiving element 3 and the light emitting element 2. The second light shielding member 9 is disposed between the lens 5 and the cover plate 1, and a part of the second light shielding member 9 is disposed corresponding to a region where the light receiving member 3 is located, and another part is disposed corresponding to a radially outer side of the region where the light receiving member 3 is located.

The following describes a specific structure of the intelligent wearable device according to an embodiment of the present invention with reference to fig. 3.

The utility model discloses still include an intelligence and dress the setting, including the optical detection system who covers shell 100 and before, be equipped with cooperation groove 110 on the lid shell 100, optical detection system establishes in cooperation groove 110.

The utility model discloses an intelligence wearing equipment, owing to have before light detection system, can avoid incidenting to 1 central part's of apron light under the condition of human skin reflection not, directly propagate to 1 marginal part of apron then by the phenomenon emergence that light receiving part 3 received along the inside of apron 1, reduced intelligence wearing equipment's measuring error betterly, promote intelligence wearing equipment's measurement accuracy.

What need supplementarily explain here, the utility model discloses an intelligence wearing equipment can be any intelligent equipment that can wear such as intelligent wrist-watch, intelligent bracelet, does not make the restriction to the specific kind of intelligence wearing equipment here.

In the description herein, references to the description of "some embodiments," "other embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims (10)

1. A light detection system, comprising:

a cover plate (1), the cover plate (1) comprising a first portion (11) and a second portion (12), the second portion (12) being at least partially disposed around the first portion (11), and the first portion (11) and the second portion (12) being configured to be at least partially optically isolated;

a light emitting member (2), said light emitting member (2) being disposed below said cover plate (1), said light emitting member (2) being for emitting light rays passing through said first portion (11);

a light receiving element (3), the light receiving element (3) being disposed below the cover plate (1), the light receiving element (3) being configured to receive light passing through the second portion (12).

2. A light detection system as claimed in claim 1, characterized in that the first portion (11) and the second portion (12) are provided separately.

3. A light detection system as claimed in claim 2, wherein said second portion (12) has a fitting hole (121), said first portion (11) is fitted in said fitting hole (121), and a light shielding layer (10) is provided on an inner wall of said fitting hole (121).

4. A light detection system according to claim 3, wherein the fitting hole (121) comprises a first hole (1211) and a second hole (1212), a diameter of the first hole (1211) is larger than a diameter of the second hole (1212), the first portion (11) is fitted in the first hole (1211), and the light shielding layer (10) is provided on an inner wall of the first hole (1211), an inner wall of the second hole (1212), and a step surface between the first hole (1211) and the second hole (1212).

5. A light detection system as claimed in claim 1, wherein the cover plate (1) further comprises a light blocking wall (13), the light blocking wall (13) is connected between the first portion (11) and the second portion (12), and the first portion (11), the second portion (12) and the light blocking wall (13) are integrally formed.

6. A light detecting system according to any one of claims 1-5, wherein the light detecting system further comprises a first retaining wall (6), the first retaining wall (6) being located between the light emitting element (2) and the light receiving element (3).

7. A light detection system as claimed in any one of claims 1-5, further comprising a second retaining wall (7), said second retaining wall (7) being located radially outside said light receiving element (3).

8. A light detection system according to any one of claims 1-5, further comprising a lens (5), wherein the lens (5) is arranged below the cover plate (1), wherein the lens (5) is located between the cover plate (1) and the light emitting element (2) and the light receiving element (3), and wherein the lens (5) covers the light receiving element (3) and an area where the light emitting element (2) is located.

9. A light detection system as claimed in claim 8, further comprising:

a first light-shielding member (8), the first light-shielding member (8) being provided between the lens (5) and the cover plate (1) and being disposed corresponding to an area between the light receiving member (3) and the light emitting member (2); and/or:

the second light shading part (9), the second light shading part (9) is arranged between the lens (5) and the cover plate (1), one part of the second light shading part (9) is arranged corresponding to the area where the light receiving part (3) is located, and the other part of the second light shading part (9) is arranged corresponding to the radial outer side of the area where the light receiving part (3) is located; or: the inner peripheral wall of the second light shading part (9) is flush with the outer peripheral wall of the light receiving part (3).

10. An intelligent wearable arrangement, comprising a cover housing (100) and a light detection system as claimed in any of claims 1-9, wherein a mating slot (110) is provided on the cover housing (100), and the light detection system is provided in the mating slot (110).

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