CN105763774B - A kind of camera module, electronic equipment and image-pickup method - Google Patents
A kind of camera module, electronic equipment and image-pickup method Download PDFInfo
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- CN105763774B CN105763774B CN201610113419.7A CN201610113419A CN105763774B CN 105763774 B CN105763774 B CN 105763774B CN 201610113419 A CN201610113419 A CN 201610113419A CN 105763774 B CN105763774 B CN 105763774B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/667—Camera operation mode switching, e.g. between still and video, sport and normal or high- and low-resolution modes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/30—Transforming light or analogous information into electric information
- H04N5/33—Transforming infrared radiation
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- Signal Processing (AREA)
- Blocking Light For Cameras (AREA)
- Studio Devices (AREA)
- Color Television Image Signal Generators (AREA)
Abstract
The invention discloses a kind of camera module, electronic equipment and image-pickup method, which includes: the lens module being oppositely arranged and optical sensor；Light wave selection device between the lens module and the optical sensor is set；The light wave selection device is used to penetrate infrared light through visible light and selectivity.For the camera module by the light wave selection device, the property of can choose penetrates infrared light.The camera module can not only carry out visual light imaging, but also can carry out infrared imaging.Therefore, with the electronic equipment of the camera module, relative to the existing electronic equipment using two camera modules, low manufacture cost, and it is small in size.
Description
Technical field
The present invention relates to technical field of electronic equipment, more specifically, being related to a kind of camera module, electronic equipment and figure
As acquisition method.
Background technique
With the continuous development of science and technology, with image collecting function electronic equipment, as mobile phone, tablet computer and
Access control system etc. is more and more applied in daily life and work, is daily life and work
Huge convenience is brought, the indispensable important tool of current people is become.
The information security of electronic equipment is a key property of electronic equipment.Iris recognition since accuracy rate is high and
Safety is good, becomes a kind of important means of identification.Therefore, the side that more and more electronic equipments pass through iris recognition
Formula carries out identification, to guarantee the information security of electronic equipment.When carrying out iris recognition, need to carry out iris imaging, iris
Imaging needs to incude infrared light, but common visual light imaging needs to filter out infrared light with optical filter to promote the picture of image
Quality.
Electronic equipment is imaged by camera module.The prior art in order to avoid iris imaging and visual light imaging phase
Mutually interference usually integrates two camera modules in the electronic device, and one is used to carry out visual light imaging, and one is used for iris
Imaging.But it will lead to the increase of electronic equipment volume in this way, and increase cost of manufacture.
Summary of the invention
To solve the above-mentioned problems, the present invention provides a kind of camera module, electronic equipment and image-pickup method, it is
Camera module increases a light wave selection device, can make camera module while have infrared imaging and visual light imaging function
Can, infrared imaging and visual light imaging can be realized using a camera module in electronic equipment, and low manufacture cost is small in size.
To achieve the goals above, the invention provides the following technical scheme:
A kind of camera module, the camera module include:
The lens module and optical sensor being oppositely arranged；
Light wave selection device between the lens module and the optical sensor is set；The light wave selection device is used
Infrared light is penetrated in transmission visible light and selectivity.
Preferably, in above-mentioned camera module, the light wave selection device passes through visible light at the first moment, at second
It carves and passes through visible light and infrared light.
Preferably, in above-mentioned camera module, further includes: controller, the controller by preset voltage for being believed
Number control light wave selection device penetrates visible light at first moment, and stops infrared light, at described second
It carves and penetrates visible light and infrared light.
Preferably, in above-mentioned camera module, the controller is also used to according to the optical sensor at described first
Carve the first image information of photosensitive acquisition of information, according to the optical sensor second moment photosensitive acquisition of information second
Image information forms infrared image according to the first image information and second image information.
Preferably, in above-mentioned camera module, further includes: trigger switch；The trigger switch includes first switch mode
And second switch mode；
When the trigger switch is in the first switch mode, it is saturating that the controller controls the light wave selection device
Visible light is crossed, and stops infrared light；When the trigger switch is in the second switch mode, the controller control
The light wave selection device penetrates visible light at first moment, and reflects infrared light, at second moment through visible
Light and infrared light.
Preferably, in above-mentioned camera module, the light wave selection device includes: photon crystal film；
When the voltage signal is zero, the photon crystal film penetrates visible light, and stops infrared light；Work as institute
State voltage signal be given threshold when, the photon crystal film penetrate visible light and infrared light.
Preferably, in above-mentioned camera module, the light wave selection device further include: be arranged in the photon crystal film
Biobelt pass filter between the lens module, the biobelt pass filter have the first transmission region and the second light transmission
Wave band；Wherein, first transmission region includes the visible light wave range；Second transmission region includes the infrared waves
Section.
Preferably, in above-mentioned camera module, when the trigger switch is in the first switch mode, the control
Device is also used to form visible images according to the photosensitive information of the optical sensor.
The present invention also provides a kind of electronic equipment, which includes: memory and above-mentioned camera module.
The present invention also provides a kind of image-pickup methods, are used for above-mentioned camera module, which is characterized in that the Image Acquisition
Method includes:
The light transmission state of light wave selection device is controlled, by different voltage signals to obtain the first image and the second figure
Picture；Wherein, when penetrating visible light in the light wave selection device, and stopping infrared light, the first image is obtained；Institute
When stating light wave selection device through visible light and infrared light, second image is obtained；
Infrared image is formed according to the first image and second image.
As can be seen from the above description, camera module provided by the invention includes: that the lens module being oppositely arranged and light pass
Sensor；Light wave selection device between the lens module and the optical sensor is set；The light wave selection device is used for
Infrared light is penetrated through visible light and selectivity.The camera module passes through the light wave selection device, the property of can choose
Through infrared light.When needing to carry out visual light imaging, infrared light is stopped by light wave selection device, to guarantee visual light imaging
Quality.When needing to carry out infrared imaging, using light wave selection device to the selective penetrated property of infrared light, camera module can be with
The first image information for being formed according to visible optical information is obtained at the first moment, in the acquisition of the second moment according to visible light and red
The second image information that outer light is formed forms infrared image according to the first image information and second image information.
As it can be seen that the camera module can not only carry out visual light imaging, but also infrared imaging can be carried out.Therefore, there is institute
The electronic equipment for stating camera module, relative to the existing electronic equipment using two camera modules, low manufacture cost, and volume
It is small.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of structural schematic diagram of camera module provided by the embodiments of the present application；
Fig. 2 is a kind of schematic illustration of infrared imaging provided by the embodiments of the present application；
Fig. 3 is Transmission curves figure of the photon crystal film provided by the embodiments of the present application when voltage signal is zero；
Fig. 4 is Transmission curves of the photon crystal film provided by the embodiments of the present application when voltage signal is given threshold
Figure；
Fig. 5 is a kind of Transmission curves of biobelt pass filter provided by the embodiments of the present application；
Fig. 6 is a kind of structural schematic diagram of the light wave selection device provided by the embodiments of the present application at the first moment；
Fig. 7 is a kind of structural schematic diagram of the light wave selection device provided by the embodiments of the present application at the second moment；
Fig. 8 is the structural schematic diagram of another light wave selection device provided by the embodiments of the present application；
Fig. 9 provides a kind of flow diagram of image-pickup method for the embodiment of the present application.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As described in the background art, existing electronic equipment in order to realize infrared imaging and visual light imaging simultaneously
Function usually integrates two camera modules in the electronic device, one for carrying out visual light imaging, one for iris at
Picture.But it will lead to the increase of electronic equipment volume in this way, and increase cost of manufacture.
To solve the above-mentioned problems, the embodiment of the present application provides a kind of camera module, and the camera module includes:
The lens module and optical sensor being oppositely arranged；
Light wave selection device between the lens module and the optical sensor is set；The light wave selection device is used
Infrared light is penetrated in transmission visible light and selectivity.
For the camera module by the light wave selection device, the property of can choose penetrates infrared light.When needs progress can
When light-exposed imaging, infrared light is stopped by light wave selection device, to guarantee the quality of visual light imaging.When need to carry out it is infrared at
When picture, using light wave selection device to the selective penetrated property of infrared light, camera module can be obtained at the first moment according to visible
The first image information that optical information is formed obtains at the second moment and is believed according to the second image that visible light and infrared light are formed
Breath forms infrared image according to the first image information and second image information.
As it can be seen that the camera module can not only carry out visual light imaging, but also infrared imaging can be carried out.Therefore, there is institute
The electronic equipment for stating camera module, relative to the existing electronic equipment using two camera modules, low manufacture cost, and volume
It is small.
In order to make the technical scheme provided by the embodiment of the invention clearer, above scheme is carried out with reference to the accompanying drawing detailed
Thin description.
With reference to Fig. 1, Fig. 1 is a kind of structural schematic diagram of camera module provided by the embodiments of the present application, the camera module packet
It includes: the lens module 21 and optical sensor 23 being oppositely arranged.Setting the lens module 21 and the optical sensor 23 it
Between light wave selection device 25；The light wave selection device 25 is used to penetrate infrared light through visible light and selectivity.
Wherein, the light wave selection device 25 at the first moment by visible light, the second moment by visible light and
Infrared light.Therefore, when needing to carry out infrared imaging, using light wave selection device 25 to the selective penetrated property of infrared light, camera shooting
Mould group can obtain the first image information formed according to visible optical information at the first moment, obtain at the second moment according to visible
The second image information that light and infrared light are formed, forms red according to the first image information and second image information
Outer image.
Optionally, the camera module further include: controller, the controller by preset voltage signal for being controlled
The light wave selection device penetrates visible light at first moment, and stops infrared light, penetrates at second moment
Visible light and infrared light.It should be noted that the controller is not shown in Fig. 1.The camera module further includes shell 24.Institute
Controller, the optical sensor 23 and light wave selection device 25 is stated to be arranged in the shell 24.
The controller is also used to the first figure of photosensitive acquisition of information according to the optical sensor 23 at first moment
As information, the second image information of photosensitive acquisition of information according to the optical sensor at second moment, according to described first
Image information and second image information form infrared image.
Specifically, controller is stopped infrared by photocontrol light wave selection device 25 when needing to carry out visual light imaging
Light carries out visual light imaging according to the photosensitive acquisition of information visible light image information of the optical sensor 23.It is red when needing to carry out
When outer imaging, controller controls light wave selection device 25 at the first moment by visible light, according to the optical sensor 23 the
The photosensitive information at one moment forms the first image；And it controls light wave selection device 25 and passes through visible light and infrared at the second moment
Light forms the second image information in the second moment photosensitive information according to the optical sensor 23.The controller can be according to institute
It states the first image information and second image information forms infrared image.Specifically, the controller passes through image procossing
Second image information and the first image information are done subtraction process by method, can obtain infrared image.
As can be seen from the above description, the camera module needs to control light wave selection device when carrying out visual light imaging
25 by visible light, and infrared light is stopped to pass through, and visible images both can be generated further according to the photosensitive information of optical sensor 23.
When carrying out infrared imaging, needs to control light wave selection device 25 by visible light and infrared light, need optical sensor at this time
23 carry out photosensitive imaging twice at the first moment and the second moment, can obtain infrared image by image subtraction operation.For
Pattern switching, the camera module are carried out between visual light imaging and infrared imaging convenient for camera module further include: touching
Hair switch；The trigger switch includes first switch mode and second switch mode.When the trigger switch is in described the
When one switching mode, the controller controls the light wave selection device and penetrates visible light, and stops infrared light；When described
When trigger switch is in the second switch mode, it is saturating at first moment that the controller controls the light wave selection device
Visible light is crossed, and reflects infrared light, penetrates visible light and infrared light at second moment.The trigger switch can be set
It sets in the outer surface of the shell.When the trigger switch is in the first switch mode, the controller is also used to root
Visible images are formed according to the photosensitive information of the optical sensor.When the trigger switch is in the second switch mode,
The controller carries out infrared imaging for the photosensitive information according to the optical sensor at the first moment and the second moment.
With reference to Fig. 2, Fig. 2 is a kind of schematic illustration of infrared imaging provided by the embodiments of the present application.Optical sensor includes
Multiple pixel units, camera module carry out infrared imaging or visual light imaging according to the photosensitive information of pixel unit.Show in Fig. 2
A pixel unit of optical sensor is gone out, the pixel unit includes four sub-pixels 11.
At the second moment, since light wave selection device at this time can be by the visible light and infrared light, pixel list at this time
Each sub-pixel 11 of member incudes the visible light of corresponding color, it is seen that light includes feux rouges R, green light G and blue light B, while each
Sub-pixel 11 incudes infrared light IR, forms the second image information, corresponds to a figure in Fig. 2.
At the first moment, since light wave selection device can be by the visible light at this time, and stop infrared light, at this time
Each sub-pixel 11 of pixel unit can only incude the visible light of corresponding color, form the first image information, correspond to b in Fig. 2
Figure.
Therefore photosensitive imaging twice is carried out at the first moment and the second moment, can be obtained by image subtraction operation red
Outer image corresponds to c figure in Fig. 2.
Optionally, the light wave selection device 25 includes photon crystal film.Photon crystal film is a kind of automatically controlled film.
When applying different voltages thereon, thus it is possible to vary the arrangement of its internal crystal framework, so that the light of different-waveband is reflected, so that photon is brilliant
Body pipe film has different transmission regions.Using this characteristic of photon crystal film, corresponding voltage signal can be passed through
It controls photon crystal film and penetrates visible light in first time, and stop infrared light, at second moment through visible
Light and infrared light.Photonic crystal described in the embodiment of the present application, when the voltage signal is zero, the photon crystal film is saturating
Visible light is crossed, and stops infrared light；When the voltage signal is given threshold, the photon crystal film is through visible
Light and infrared light.
It is Transmission curves of the photon crystal film provided by the embodiments of the present application when voltage signal is zero with reference to Fig. 3, Fig. 3
Figure.As it can be seen that the photon crystal film runs the transmission of 400nm-700nm visible light when voltage signal is zero, stop 800nm-
The transmission of 900nm infrared light, can be used for visual light imaging at this time, eliminate interference of the infrared light to visual light imaging, guarantee
The quality of visual light imaging.
It is that photon crystal film provided by the embodiments of the present application is saturating when voltage signal is given threshold with reference to Fig. 4, Fig. 4
Distribution curve flux.As it can be seen that allowing the optical band of 400nm-900nm to penetrate when voltage signal is given threshold, that is, allow visible light
And the transmission of infrared light.
Therefore, according to above-mentioned infrared imaging process, photonic crystal Transmission curves is controlled by corresponding voltage signal and are carried out
Switching, is imaged iris twice at the first moment and the second moment, can be formed by the screening-mode of infrared imaging
Iris image.
As shown in Figure 1, the light wave selection device further include: be arranged in the photon crystal film and the lens module
Biobelt pass filter 22 between 21, the biobelt pass filter 22 have the first transmission region and the second transmission region.Its
In, first transmission region includes the visible light wave range；Second transmission region includes the infrared band.
Optical filter is biobelt pass filter in electronic equipment described in the embodiment of the present application.The light transmission of the biobelt pass filter
Curve is as shown in Figure 5.
With reference to Fig. 5, Fig. 5 is a kind of Transmission curves of biobelt pass filter provided by the embodiments of the present application.The dual band pass
The transmission region of optical filter includes the first transmission region and the second transmission region.The first transmission region range is 400nm-
The visible light wave range of 700nm.The second transmission region range is the infrared band of 800nm-900nm.The dual band pass filter
Mating plate only allows the light wave of first band and second band to penetrate, can be to avoid other light other than visible light and infrared light
Interference of the wave to camera module image quality.
Camera module described in the embodiment of the present application integrates a light wave selection device in visible image capturing mould group, does not need
Increase other high costs and large volume o components, is conducive to miniaturization of the electronic equipment when realizing infrared imaging function, integrated
Change and inexpensive.It, can be with hotel infrared light by light wave selection device to the barrier properties of infrared light in visual light imaging
Interference, guarantee the picture quality of visual light imaging.And when carrying out infrared imaging, when such as carrying out iris recognition, infrared image
Resolution ratio be that the resolution ratio of optical sensor is conducive to the mirror for increasing camera module so that infrared image covers more pixels
Head visual field, increases operating distance, improves accuracy of identification.Camera module carries out Shot change without increasing mobile switching device,
To select passing through for infrared light, reliability and high stability, small volume.
In the above-described embodiments, the light wave selection device uses photon crystal film, using photonic crystal in different electricity
The light transmission features under signal are pressed, realize light wave selection device in the selective penetrated property to infrared light.Specifically, realizing light wave selection
Device, by visible light, passes through visible light and infrared light at the second moment at the first moment.The embodiment is to utilize crystal
Characteristic realizes light wave selection device in the selective penetrated property to infrared light.
In other embodiments, the structure of the light wave selection device can also be as shown in Fig. 6 and Fig. 7.Fig. 6 is this
Apply for that a kind of structural schematic diagram of the light wave selection device of embodiment offer at the first moment, Fig. 7 provide for the embodiment of the present application
A kind of structural schematic diagram of light wave selection device at the second moment, light wave selection device described in the embodiment includes: red
Outer filter coating 61 and light hole 62, the infrared filtering film 61 can be by visible light, and infrared light is stopped to pass through.First
Moment controls the infrared filtering film 61 and is parallel to light hole 63, to cover the light hole 62, at this point, only visible light can lead to
Cross the light hole.At the second moment, the infrared fileter 61 is controlled perpendicular to light hole 63, it is seen that light and infrared light can be with
Pass through light hole 63.As it can be seen that light wave selection device equally may be implemented in the selective penetrated property to infrared light in the embodiment.Figure
6 with Fig. 7, and solid arrow indicates that visible light, dotted arrow indicate infrared light.
Optionally, the rotation of the infrared filtering film 61 can be automatically controlled by controller, realize control infrared light
Pass through.Specifically, controller, which controls the infrared filtering film 61 by preset control signal, is parallel to light passing at the first moment
Hole 63, at the second moment perpendicular to light hole 63.
The structure of the light wave selection device can be as shown in figure 8, Fig. 8 be another light provided by the embodiments of the present application
The structural schematic diagram of wave selection device, the light wave selection device include: the light-dividing device 81 and optical beam selector being oppositely arranged
82.In camera module, optical beam selector 82 is between light-dividing device 81 and optical sensor.
Wherein, optical beam selector 82 includes: the first transmission region A and the second transmission region B, the first transmission region A setting
There is infrared light optical filter, visible light can be penetrated, stop infrared light.Second area B can be simultaneously through visible light and infrared
Light.In Fig. 8, solid arrow indicates that visible light, dotted arrow indicate infrared light.The light-dividing device 81 is for incident light to be averaged
It is divided into the first light beam and the second light beam.First light beam the first transmission region A of incidence, the second transmission region B of the second light beam incidence.
Using the light wave selection device of Fig. 8 illustrated embodiment, when carrying out visual light imaging, optical sensor and institute are obtained
The photosensitive information for stating the corresponding part the first transmission region A, according to the two of the photosensitive information times of formation visible images.Work as progress
When infrared imaging, optical sensor and the corresponding part the first transmission region A and corresponding with the second transmission region B
Part can carry out photosensitive simultaneously, obtain the two-part photosensitive information, by image subtraction operation, obtain optical sensor and the
The photosensitive information of the corresponding part two transmission region B, according to the two of the photosensitive information times of formation infrared images.
Visual light imaging and infrared imaging in Fig. 8 illustrated embodiment can be realized by controller.Work as progress
When visual light imaging, controller obtains the photosensitive information of optical sensor part corresponding with the first transmission region A, according to this
Two times of formation visible images of photosensitive information.When carrying out infrared imaging, optical sensor is corresponding with the first transmission region A
Part and part corresponding with the second transmission region B can carry out simultaneously photosensitive, it is two-part that controller obtains this
Photosensitive information obtains the photosensitive information of optical sensor part corresponding with the second transmission region B, root by image subtraction operation
According to two times of formation infrared images of the photosensitive information.
As can be seen from the above description, camera module described in the embodiment of the present application can be by control light wave selection device to red
Outer light carries out selective transmission, carries out infrared imaging, therefore iris can be imaged, and identifies for red film.May be used also simultaneously
Selective transmission is carried out to control light wave selection device to infrared light, carries out visual light imaging.Using a camera module
Have the function of infrared imaging and visual light imaging simultaneously, relative to realized simultaneously using two camera modules infrared imaging and
The embodiment of visual light imaging function reduces cost of manufacture and volume.
Based on the above embodiment, another embodiment of the application additionally provides a kind of electronic equipment, on which includes:
State camera module described in embodiment and memory.The memory is for storing image information.
Optionally, the electronic equipment further includes display.The display is for performing image display.Specifically, institute
It states display and is displayed for the infrared image that camera module carries out generation when infrared imaging, such as iris image can be used for
Show the visible images of camera module generation when carrying out visual light imaging.The electronic equipment can be mobile phone, plate electricity
Brain and access control system etc. have the electronic equipment of camera function.
The electronic equipment can have the function of infrared imaging and visual light imaging, phase using a camera module simultaneously
For the existing electronic equipment using two camera modules, low manufacture cost, and it is small in size.
Based on above-mentioned camera module embodiment, another embodiment of the application additionally provides a kind of image-pickup method, is used for
Above-mentioned camera module, the image-pickup method is as shown in figure 9, Fig. 9 provides a kind of image-pickup method for the embodiment of the present application
Flow diagram, comprising:
Step S11: controlling the light transmission state of light wave selection device by different voltage signal, with obtain the first image with
And second image.
Wherein, when penetrating visible light in the light wave selection device, and stopping infrared light, first figure is obtained
Picture；When the light wave selection device penetrates visible light and infrared light, second image is obtained；
Step S12: infrared image is formed according to the first image and second image.
It should be noted that the embodiment of the present application described image acquisition method be based on above-mentioned camera module, it is same and similar it
Place can be complementary to one another explanation.Its realization principle can be with reference to described in above-described embodiment, and details are not described herein.
The embodiment of the present application described image acquisition method can make electronic equipment by a camera module while have can
Light-exposed imaging and infrared imaging function, driving method is simple, at low cost.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (7)
1. a kind of camera module, which is characterized in that the camera module includes:
The lens module and optical sensor being oppositely arranged；
Light wave selection device between the lens module and the optical sensor is set；The light wave selection device is for saturating
Visible light and selectivity are crossed through infrared light；The light wave selection device passes through visible light at the first moment, at the second moment
Pass through visible light and infrared light；
Controller and trigger switch, the trigger switch include first switch mode and second switch mode；
When the trigger switch is in the first switch mode, the controller is also used to the sense according to the optical sensor
Optical information forms visible images；When the trigger switch is in the second switch mode, the controller is used for basis
The optical sensor the first moment photosensitive information formed the first image information and according to the optical sensor second when
The photosensitive information carved forms the second image information, and the controller passes through image processing method for the second image information and the first figure
As information does subtraction process, progress infrared imaging, acquisition infrared image.
2. camera module according to claim 1, which is characterized in that the controller is used to pass through preset voltage signal
The light wave selection device is controlled at first moment through visible light, and stops infrared light, at second moment
Through visible light and infrared light.
3. camera module according to claim 1, which is characterized in that when the trigger switch is in the first switch mould
When formula, the controller controls the light wave selection device and penetrates visible light, and stops infrared light；When the trigger switch
When in the second switch mode, the controller controls the light wave selection device at first moment through visible
Light, and infrared light is reflected, visible light and infrared light are penetrated at second moment.
4. camera module according to claim 2, which is characterized in that the light wave selection device includes: that photonic crystal is thin
Film；
When the voltage signal is zero, the photon crystal film penetrates visible light, and stops infrared light；When the electricity
When pressure signal is given threshold, the photon crystal film penetrates visible light and infrared light.
5. camera module according to claim 4, which is characterized in that the light wave selection device further include: be arranged in institute
The biobelt pass filter between photon crystal film and the lens module is stated, the biobelt pass filter has the first light transmission wave
Section and the second transmission region；Wherein, first transmission region includes the visible light wave range；The second transmission region packet
Include the infrared band.
6. a kind of electronic equipment characterized by comprising memory and camera shooting mould as described in any one in claim 1-5
Group.
7. a kind of image-pickup method is used for camera module as claimed in claims 1-5 characterized by comprising
The light transmission state of light wave selection device is controlled, by different voltage signals to obtain the first image and the second image；
Wherein, when penetrating visible light in the light wave selection device, and stopping infrared light, the first image is obtained；Described
When light wave selection device penetrates visible light and infrared light, second image is obtained；
Infrared image is formed according to the first image and second image, is believed the second image by image processing method
Breath does subtraction process with the first image information, to obtain the infrared image.
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| CN201610113419.7A CN105763774B (en) | 2016-02-29 | 2016-02-29 | A kind of camera module, electronic equipment and image-pickup method |
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| WO2018064875A1 (en) * | 2016-10-08 | 2018-04-12 | 深圳市金立通信设备有限公司 | Camera, method for preparing filter plate, terminal and imaging method therefor |
| CN106547160A (en) * | 2016-10-08 | 2017-03-29 | 深圳市金立通信设备有限公司 | A kind of preparation method of camera, terminal and filter |
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