CN208973838U - Optical module and photoelectric detection system - Google Patents
Optical module and photoelectric detection system Download PDFInfo
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- CN208973838U CN208973838U CN201721477168.7U CN201721477168U CN208973838U CN 208973838 U CN208973838 U CN 208973838U CN 201721477168 U CN201721477168 U CN 201721477168U CN 208973838 U CN208973838 U CN 208973838U
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Abstract
The utility model belongs to health monitoring technique field, is related to a kind of optical module and photoelectric detection system.The optical module include light source column, photosensitive column and be arranged between light source column and photosensitive column every light part；Light source column and photosensitive column are optics silicagel column；The both ends of light source column are respectively formed the light source column plane of incidence and light source column exit facet, assemble directive human body soft tissue by light source column exit facet by the incident light that the light source column plane of incidence enters light source column；The both ends of photosensitive column are respectively formed the photosensitive column plane of incidence and photosensitive column exit facet, after the light of human body soft tissue reflection is by the aggregation of photosensitive column, are projected by photosensitive column exit facet；Every light part for direct projection and scattering of the incident light to photosensitive column to be isolated.The optical module can effectively reduce the signal interference of photoelectric detection system in the detection process, improve the data accuracy of heart rate detection and blood oxygen saturation detection.
Description
Technical field
The utility model belongs to health monitoring technique field, more particularly to a kind of optical module and photoelectric detection system.
Background technique
Development with wearable equipment and the technology phase using reflecting light electrical method detection heart rate and blood oxygen saturation
To maturation, the technical application for detecting heart rate and blood oxygen saturation with reflecting light electrical method is more and more extensive.Utilize the Technology design
Photoelectric detection system structure it is simple, can directly be worn on user, the heart rate and blood oxygen saturation of real-time detection user
Signal provides data in real time and supports for movement and health monitoring.
But in the detection process of existing photoelectric detection system, often deposited between the detection sensor and user's skin of device
It can not be in close contact in gap, environment light is easy to enter detection sensor by gap and form testing result to interfere；Simultaneously
Detection sensor and skin, which cannot be in close contact, be easy to cause user to generate between skin and detection sensor during the motion
Displacement, so that the testing result to photoelectric detection system interferes, declines the accuracy rate of photoelectric detection system detection data.
Utility model content
The technical problem to be solved by the utility model is to detection sensor and people for existing photoelectric detection system
There are gap between body skin, the technical issues of declining the accuracy rate of photoelectric detection system detection data, a kind of optics group is provided
Part and photoelectric detection system.
In order to solve the above technical problems, on the one hand, the utility model embodiment provides a kind of optical module, including light source
Column, photosensitive column and be arranged between the light source column and the photosensitive column every light part；The light source column and the photosensitive column
It is optics silicagel column；
The both ends of the light source column are respectively formed the light source column plane of incidence and light source column exit facet, by the light source column plane of incidence
Incident light into the light source column assembles directive human body soft tissue by the light source column exit facet；
The both ends of the photosensitive column are respectively formed the photosensitive column plane of incidence and photosensitive column exit facet, anti-through the human body soft tissue
After the light penetrated is by the photosensitive column aggregation, projected by the photosensitive column exit facet；
It is described to be used to that direct projection and scattering of the incident light to the photosensitive column be isolated every light part.
Optionally, the light source column exit facet is cambered surface, and the photosensitive column plane of incidence is cambered surface.
Optionally, the both ends every light part protrude from the gap between the light source column and the photosensitive column.
Optionally, the photosensitive column is concordant with the light source column bottom；
It is described concordant every light part, the light source column and the photosensitive column top.
Optionally, described seamless spliced every the one side wall of the relatively described photosensitive column of light part and the photosensitive column；
It is described seamless spliced every the one side wall of the relatively described light source column of light part and the light source column.
Optionally, the cross-sectional area of the light source column is less than the cross-sectional area of the photosensitive column.
On the other hand, the utility model embodiment additionally provides a kind of photoelectric detection system, including sensor, light source, electricity
Road plate, hood and above-mentioned optical module；The circuit board is electrically connected with the sensor and the light source respectively；
Photosensitive area and light source region are formed on the inside of the hood, the sensor is arranged in the photosensitive area, the light
Source is arranged in the light source region；
The top of the light source column connects with the light source region, and the top of the photosensitive column connects with the photosensitive area；
The center of the light source column plane of incidence is directed at the center of the light source, and the center of the photosensitive column exit facet is directed at institute
State the center of sensor.
Optionally, the hood is opaque silica gel part.
Optionally, the photoelectric detection system further includes shell, the light source column exit facet and the photosensitive column plane of incidence
The bottom surface of the shell is protruded from, the circuit board, the sensor, the light source and hood setting are described outer
In shell.
Optionally, described to be integrally formed every light part and the hood.
According to the optical module and photoelectric detection system of the utility model embodiment, the beneficial effect is that:
(1) material of the optics silica gel as light source column and photosensitive column is used, the light transmittance of incident light, and light can be effectively improved
Learning silica gel has certain elasticity, and can increase the frictional force and contact area between optical module and human skin when human contact,
Displacement when to reduce movement between optical module and human skin.
(2) incident light is assembled directive human body soft tissue through light source column exit facet by light source column, reduces the scattering of incident light.
(3) direct projection and scattering of the incident light to photosensitive column can be effectively isolated every light part.
(4) photosensitive column assembles the light reflected through human body soft tissue, enhances the intensity of the light projected by photosensitive column exit facet.
(5) it can effectively reduce the signal interference of photoelectric detection system in the detection process, improve heart rate detection and blood oxygen is full
With the data accuracy of degree detection.
(6) by the center of the center alignment light source of the light source column plane of incidence, the incident light for projecting light source preferably passes through light
Source column reduces scattering in favor of the aggregation of incident light.
(7) by the center of the center alignment sensor of photosensitive column exit facet, keep the light reflected through human body soft tissue better
It is focused on sensor by photosensitive column, while isolation environment light.
Detailed description of the invention
Fig. 1 is the schematic diagram for the photoelectric detection system that an embodiment of the present invention provides；
Fig. 2 is the schematic diagram of optical module in Fig. 1.
Appended drawing reference in specification is as follows:
1, circuit board；
2, sensor；
3, light source；
4, hood；
5, optical module；501, light source column；502, photosensitive column；503, every light part；
6, shell.
Specific embodiment
The technical issues of in order to keep the utility model solved, technical solution and beneficial effect are more clearly understood, below
In conjunction with accompanying drawings and embodiments, the utility model is described in further detail.It should be appreciated that specific reality described herein
It applies example to be only used to explain the utility model, is not used to limit the utility model.
As depicted in figs. 1 and 2, the photoelectric detection system that an embodiment of the present invention provides, including circuit board 1, sensing
Device 2, light source 3, hood 4 and optical module 5.Circuit board 1 is electrically connected with sensor 2 and light source 3 respectively.4 inside of hood
Photosensitive area and light source region are formed, sensor 2 is arranged in the photosensitive area, and light source 3 is arranged in the light source region.
In one embodiment, optical module 5 includes light source column 501, photosensitive column 502 and setting in light source column 501 and sense
Between light beam 502 every light part 503, light source column 501 and photosensitive column 502 are optics silicagel column.Distinguish at the both ends of light source column 501
The light source column plane of incidence and light source column exit facet are formed, the both ends of photosensitive column 502 are respectively formed the photosensitive column plane of incidence and photosensitive column goes out
Penetrate face.Every light part 503 for direct projection and scattering of the incident light to photosensitive column 502 to be isolated.
When the photoelectric detection system to be worn on human body, entering for light source column 501 is entered by the light source column plane of incidence
It penetrates light (being issued by light source 3) and directive human body soft tissue is assembled by the light source column exit facet, reflected through the human body soft tissue
Light by the aggregation of photosensitive column 502 after, projected by the photosensitive column exit facet.
In one embodiment, the top of light source column 501 connects with the light source region, the top of photosensitive column 502 and the sense
Light area connects.The center of the center alignment light source 3 of 501 plane of incidence of light source column, the center alignment sensor of photosensitive 502 exit facet of column
2 center.
The electric signal received is converted into optical signal and is issued it should be understood that can control light source 3 by circuit board 1
Incident light, incident light is assembled by light source column 501 injects human body soft tissue, and scattering occurs in human body soft tissue and forms scattering
Light；Light is scattered after human body soft tissue injection, assembles through photosensitive column 502 and projects to sensor 2, sensor 2 can will sense
Optical signal be converted into electric signal and be delivered to circuit board, to obtain the heart rate and blood oxygen saturation data of user.
In one embodiment, as depicted in figs. 1 and 2,501 exit facet of light source column is cambered surface, and photosensitive 502 plane of incidence of column is arc
Face.The scattering of light is reduced by the cambered surface on setting light source column 501 and photosensitive column 502 in favor of the aggregation of light.
In one embodiment, the gap between light source column 501 and photosensitive column 502 is protruded from every the both ends of light part 503.This
When, every light part 503 by completely isolated light source column 501 and photosensitive column 502, while enhancing the isolation of direct projection and the scattering to incident light
Effect.
In one embodiment, photosensitive column 502 is concordant with 501 bottom of light source column, it is described every light part 503, light source column 501 and
Photosensitive 502 top of column is concordant.Enhanced every light part 503 every the position of light part 503 every light effect by being arranged.
In one embodiment, seamless spliced every the one side wall of the relatively photosensitive column 502 of light part 503 and photosensitive column 502, every light part
The one side wall and light source column 501 of 503 facing light sources columns 501 are seamless spliced.By reducing every light part 503 and photosensitive column 502 and
Gap between light source column 501 enhances every light part 503 every light effect.
In one embodiment, the cross-sectional area of light source column 501 is less than the cross-sectional area of photosensitive column 502.
In one embodiment, as shown in Figure 1, hood 4 is opaque silica gel part.Photoelectric detection system further includes shell 6,
Light source column exit facet and the photosensitive column plane of incidence protrude from the bottom surface of shell 6, circuit board 1, sensor 2, light source 3 and hood 4
It is arranged in shell 6.It should be understood that shell 6 is by circuit board 1, sensor 2, light source 3 and the shading to being provided at its inner portion
4 fixations and protective effect are covered, component wear is prevented.Further, since light source column 501 and photosensitive column 502 are made of silica gel materials,
And silica gel has elasticity, light source column exit facet and the photosensitive column plane of incidence is protruded to the bottom surface of shell 6, it is ensured that Photoelectric Detection
Device is comfort level when human contact, avoids discomfort caused by due to shell 6 oppresses skin.
In one embodiment, as shown in Figure 1, being integrally formed every light part 503 and hood 4.Certainly, in some embodiments
In, it is also possible to independent two components every light part 503 and hood 4, is fixedly connected on hood 4 every light part 503.
In one embodiment, photoelectric detection system is additionally provided with the control button of control photoelectric detection system switch (in figure
It is not shown).
In the use process of photoelectric detection system, which can be fixed on ear, refer to portion, wrist by user
Or the positions such as head.Start the control button, which will be converted the electric signal of circuit board 1 by light source 3
At optical signal and launch incident light, incident light will be assembled through light source column 501 injects human body soft tissue, and in human body soft tissue
Form scattering light.Scattering light is projected by human body soft tissue and is focused on sensor 2 through photosensitive column 502, is controlled by circuit board 1
Sensor 2 senses the scattering light focused on sensor 2, and the optical signal sensed is converted into electric signal by sensor 2
Circuit board 1 is passed to, to obtain the heart rate detection of user and the data of blood oxygen saturation detection.
According to optical module 5 provided in this embodiment and photoelectric detection system, the beneficial effect is that:
(1) material of the optics silica gel as light source column 501 and photosensitive column 502 is used, the light transmission of incident light can be effectively improved
Rate, and optics silica gel has certain elasticity, can increase the frictional force between optical module 5 and user's skin when contacting with user and connect
Contacting surface product, to reduce displacement when movement between optical module 5 and user's skin.
(2) incident light is assembled directive human body soft tissue through light source column exit facet by light source column 501, reduces dissipating for incident light
It penetrates.
(3) direct projection and scattering of the incident light to photosensitive column 502 can be effectively isolated every light part 503.
(4) photosensitive column 502 assembles the light reflected through human body soft tissue, enhances the strong of the light projected by photosensitive column exit facet
Degree.
(5) it can effectively reduce the signal interference of photoelectric detection system in the detection process, improve heart rate detection and blood oxygen is full
With the data accuracy of degree detection.
It (6), will be in the center alignment light source 3 of the light source column plane of incidence by the position of setting 501 facing light sources 3 of light source column
The heart, the incident light for projecting light source 3 preferably passes through light source column 501, while being conducive to the aggregation of incident light, reduces scattering.
(7) by the way that the position of photosensitive 502 relative sensors 2 of column is arranged, by the center alignment sensor 2 of photosensitive column exit facet
Center, focus on the light reflected through human body soft tissue preferably on sensor 2 by photosensitive column 502, while isolation environment light.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (10)
1. a kind of optical module, which is characterized in that including light source column, photosensitive column and setting in the light source column and described photosensitive
Between column every light part；The light source column and the photosensitive column are optics silicagel column；
The both ends of the light source column are respectively formed the light source column plane of incidence and light source column exit facet, are entered by the light source column plane of incidence
The incident light of the light source column assembles directive human body soft tissue by the light source column exit facet；
The both ends of the photosensitive column are respectively formed the photosensitive column plane of incidence and photosensitive column exit facet, reflect through the human body soft tissue
After light is by the photosensitive column aggregation, projected by the photosensitive column exit facet；
It is described to be used to that direct projection and scattering of the incident light to the photosensitive column be isolated every light part.
2. optical module according to claim 1, which is characterized in that the light source column exit facet is cambered surface, described photosensitive
The column plane of incidence is cambered surface.
3. optical module according to claim 1, which is characterized in that the both ends every light part protrude from the light source column
Gap between the photosensitive column.
4. optical module according to claim 1, which is characterized in that the photosensitive column is concordant with the light source column bottom；
It is described concordant every light part, the light source column and the photosensitive column top.
5. optical module according to claim 1, which is characterized in that the one side wall every the relatively described photosensitive column of light part
It is seamless spliced with the photosensitive column；
It is described seamless spliced every the one side wall of the relatively described light source column of light part and the light source column.
6. optical module according to claim 1, which is characterized in that the cross-sectional area of the light source column is less than described photosensitive
The cross-sectional area of column.
7. a kind of photoelectric detection system, which is characterized in that including sensor, light source, circuit board, hood and claim 1-
Optical module described in 6 any one；The circuit board is electrically connected with the sensor and the light source respectively；
Photosensitive area and light source region are formed on the inside of the hood, the sensor is arranged in the photosensitive area, and the light source is set
It sets in the light source region；
The top of the light source column connects with the light source region, and the top of the photosensitive column connects with the photosensitive area；
The center of the light source column plane of incidence is directed at the center of the light source, and the center of the photosensitive column exit facet is directed at the biography
The center of sensor.
8. photoelectric detection system according to claim 7, which is characterized in that the hood is opaque silica gel part.
9. photoelectric detection system according to claim 7, which is characterized in that the photoelectric detection system further includes shell,
The light source column exit facet and the photosensitive column plane of incidence protrude from the bottom surface of the shell, the circuit board, the sensor,
The light source and the hood are arranged in the shell.
10. photoelectric detection system according to claim 7, which is characterized in that described every light part and hood one
Molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721477168.7U CN208973838U (en) | 2017-11-08 | 2017-11-08 | Optical module and photoelectric detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721477168.7U CN208973838U (en) | 2017-11-08 | 2017-11-08 | Optical module and photoelectric detection system |
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| Publication Number | Publication Date |
|---|---|
| CN208973838U true CN208973838U (en) | 2019-06-14 |
Family
ID=66777058
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721477168.7U Active CN208973838U (en) | 2017-11-08 | 2017-11-08 | Optical module and photoelectric detection system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107928646A (en) * | 2017-11-08 | 2018-04-20 | 聚动（厦门）科技有限公司 | Optical module and photoelectric detection system |
| WO2021253451A1 (en) * | 2020-06-19 | 2021-12-23 | 深圳市汇顶科技股份有限公司 | Biological characteristic detection apparatus and smart wearable device |
-
2017
- 2017-11-08 CN CN201721477168.7U patent/CN208973838U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107928646A (en) * | 2017-11-08 | 2018-04-20 | 聚动（厦门）科技有限公司 | Optical module and photoelectric detection system |
| WO2021253451A1 (en) * | 2020-06-19 | 2021-12-23 | 深圳市汇顶科技股份有限公司 | Biological characteristic detection apparatus and smart wearable device |
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