CN109274862A - Image sensor and iris recognition camera head mould group - Google Patents
Image sensor and iris recognition camera head mould group Download PDFInfo
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- CN109274862A CN109274862A CN201710582508.0A CN201710582508A CN109274862A CN 109274862 A CN109274862 A CN 109274862A CN 201710582508 A CN201710582508 A CN 201710582508A CN 109274862 A CN109274862 A CN 109274862A
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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
- H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/10—Image acquisition
- G06V10/12—Details of acquisition arrangements; Constructional details thereof
- G06V10/14—Optical characteristics of the device performing the acquisition or on the illumination arrangements
- G06V10/147—Details of sensors, e.g. sensor lenses
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/18—Eye characteristics, e.g. of the iris
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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
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/2628—Alteration of picture size, shape, position or orientation, e.g. zooming, rotation, rolling, perspective, translation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/268—Signal distribution or switching
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- General Health & Medical Sciences (AREA)
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- Ophthalmology & Optometry (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Studio Devices (AREA)
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Abstract
The present invention provides a kind of image sensor and iris recognition camera head mould group, belongs to camera encapsulation technology field.The image sensor includes: the first pixel group, the second pixel group, control unit and reader block；First control signal is sent to the first pixel group, second control signal is sent to the second pixel group, third control signal is sent to reader block by control unit for obtaining first control signal, second control signal and third control signal；First pixel group is used to capture visual signals according to first control signal, converts the first picture signal for visual signals and is transmitted to reader block；Second pixel group is used to capture infrared signal according to second control signal, converts the second picture signal for infrared signal and is transmitted to reader block；Reader block is used to control signal according to third, exports the first picture signal and the second picture signal.Since iris image can be acquired based on the second picture signal, so that subsequent iris identifying function can be realized.
Description
Technical field
The present invention relates to camera encapsulation technology fields, take the photograph more particularly, to a kind of image sensor and iris recognition
As head mould group.
Background technique
Iris is a component part of eyes, is the annular tissue between pupil and sclera, the iris figure of each eye
Case is different, and unchangeable.Iris recognition has many advantages, such as that uniqueness is high, stability is strong, non-infringement property, by successfully
Applied to airport, customs, bank, the identity authentication of the occasions such as prison.Mobile device (such as mobile phone, tablet computer, notes at present
This computer etc.) personal information security and the problems such as network interaction information security it is more prominent.In order to ensure information safety, very much
Manufacturer has been integrated with a variety of devices for identification on the mobile apparatus.For example, mobile device is successfully integrated with
Recognition of face or fingerprint identification device are used for identification.The image sensor in terminal is typically only capable to be enough in and take pictures at present,
It can not be used for iris recognition, to be badly in need of a kind of image sensor, now to acquire iris image.
Summary of the invention
It takes pictures since the image sensor in current terminal is typically only capable to be enough in, iris recognition can not be used for, in order to
It solves the above problems, the present invention provides a kind of image sensor for overcoming the above problem or at least being partially solved the above problem
And iris recognition camera head mould group.
According to the first aspect of the invention, a kind of image sensor is provided, comprising:
First pixel group, the second pixel group, control unit and reader block；
Control unit believes the first control for obtaining first control signal, second control signal and third control signal
Number it is sent to the first pixel group, second control signal is sent to the second pixel group, third control signal is sent to reader
Block；First pixel group is used to capture visual signals according to first control signal, converts the first image letter for visual signals
Number and be transmitted to reader block；Second pixel group is used to capture infrared signal according to second control signal, by infrared signal
It is converted into the second picture signal and is transmitted to reader block；Reader block is used to control signal according to third, exports the first image
Signal and the second picture signal.
The possible implementation of with reference to first aspect the first, in the second possible implementation, described first
The time for exposure of pixel group is identical as the time for exposure of the second pixel group.
The possible implementation of with reference to first aspect the first, in the third possible implementation, described first
The time for exposure of pixel group is different from the time for exposure of the second pixel group.
The possible implementation of with reference to first aspect the first, in the fourth possible implementation, described first
The unit pixel size of pixel group is identical as the unit pixel size of the second pixel group.
The possible implementation of with reference to first aspect the first, in a fifth possible implementation, described first
The unit pixel size of pixel group is different from the unit pixel size of the second pixel group.
Image sensor provided by the invention, the first control signal that the first pixel group can be issued according to control unit capture
Visual signals, and it is translated into the first picture signal.The second control that second pixel group can be issued according to control unit is believed
Number capture infrared signal, and is translated into the second picture signal.And the third that reader block can be issued according to control unit
Control signal, the first picture signal of output and the second picture signal.Wherein, it can be realized based on the first picture signal and be taken pictures accordingly
Function can acquire iris image based on the second picture signal, to realize subsequent iris identifying function.
According to the second aspect of the invention, a kind of iris recognition camera head mould group is provided, comprising:
Image sensor, optical filter, pedestal, camera lens and wiring board assembly parts；
Light hole is provided on pedestal, camera lens is placed in light hole；Camera lens is located at the top of optical filter, and optical filter is located at
The top of image sensor；Image sensor is covered and is installed on assist side assembly parts by pedestal, the carrying of wiring board assembly parts
Image sensor and pedestal.
In conjunction with the first possible implementation of second aspect, in the second possible implementation, optical filter
It is provided with filtering coating on one side, is provided with antireflecting coating on the another side of optical filter.
In conjunction with second of possible implementation of second aspect, in the third possible implementation, filtering coating
It is divided into the first filter area and the second filter area；The filtering coating of corresponding first filter area, the second pixel group above first pixel group
The filtering coating of corresponding second filter area in top.
In conjunction with the third possible implementation of second aspect, in the fourth possible implementation, first filters
Area is used to be in the visible rays of 400nm to 650nm by wavelength, and the second filter area is used to be in 700nm extremely by wavelength
The infrared light of 1000nm.
In conjunction with second of possible implementation of second aspect, in a fifth possible implementation, optical filter packet
Include the first optical filter and the second optical filter；The filtering coating of corresponding first optical filter above first pixel group, in the second pixel group
The filtering coating of corresponding second optical filter in side.
In conjunction with the 5th kind of possible implementation of second aspect, in a sixth possible implementation, first filters
Piece is used to be in the visible rays of 400nm to 650nm by wavelength, and the second optical filter is used to be in 700nm extremely by wavelength
The infrared light of 1000nm.
In conjunction with the third or the 4th kind of possible implementation of second aspect, in the 7th kind of possible implementation,
The first light hole and the second light hole are provided on pedestal, camera lens includes the first camera lens and the second camera lens；Above first pixel group
Corresponding first light hole, the second corresponding second light hole in pixel group top；First camera lens is placed in the first light hole, the second mirror
Head is placed in the second light hole；First camera lens is located at the top of the first filter area, and the second camera lens is located at the upper of the second filter area
Side.
In conjunction with the 5th kind of second aspect or the 6th kind of possible implementation, in the 8th kind of possible implementation,
The first light hole and the second light hole are provided on pedestal, camera lens includes the first camera lens and the second camera lens；Above first pixel group
Corresponding first light hole, the second corresponding second light hole in pixel group top；First camera lens is placed in the first light hole, the second mirror
Head is placed in the second light hole；First camera lens is located at the top of the first optical filter, and the second camera lens is located at the upper of the second optical filter
Side.
In conjunction with the 7th kind of possible implementation of second aspect, in the 9th kind of possible implementation, the first camera lens
For wide-angle lens or narrow angle mirror head, the second camera lens is narrow angle mirror head.
In conjunction with the 8th kind of possible implementation of second aspect, in the 9th kind of possible implementation, the first camera lens
For wide-angle lens or narrow angle mirror head, the second camera lens is narrow angle mirror head.
It should be understood that above general description and following detailed description be it is exemplary and explanatory, can not
The limitation present invention.
Detailed description of the invention
Fig. 1 is a kind of configuration diagram of image sensor of the embodiment of the present invention；
Fig. 2 is a kind of diagrammatic cross-section of iris recognition camera head mould group of the embodiment of the present invention；
Fig. 3 is a kind of front schematic view of optical filter of the embodiment of the present invention；
Fig. 4 is a kind of optical texture relation schematic diagram of iris recognition camera head mould group of the embodiment of the present invention；
Fig. 5 is a kind of diagrammatic cross-section of iris recognition camera head mould group of the embodiment of the present invention；
Fig. 6 is the front schematic view of the first optical filter of one kind of the embodiment of the present invention；
Fig. 7 is the front schematic view of the second optical filter of one kind of the embodiment of the present invention；
Fig. 8 is a kind of optical texture relation schematic diagram of iris recognition camera head mould group of the embodiment of the present invention；
Fig. 9 is a kind of diagrammatic cross-section of iris recognition camera head mould group of the embodiment of the present invention；
Figure 10 is a kind of optical texture relation schematic diagram of iris recognition camera head mould group of the embodiment of the present invention；
Figure 11 is a kind of diagrammatic cross-section of iris recognition camera head mould group of the embodiment of the present invention；
Figure 12 is a kind of optical texture relation schematic diagram of iris recognition camera head mould group of the embodiment of the present invention.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
Iris is a component part of eyes, is the annular tissue between pupil and sclera, the iris figure of each eye
Case is different, and unchangeable.Iris recognition has many advantages, such as that uniqueness is high, stability is strong, non-infringement property, by successfully
Applied to airport, customs, bank, the identity authentication of the occasions such as prison.Mobile device (such as mobile phone, tablet computer, notes at present
This computer etc.) personal information security and the problems such as network interaction information security it is more prominent.In order to ensure information safety, very much
Manufacturer has been integrated with a variety of devices for identification on the mobile apparatus.For example, mobile device is successfully integrated with
Recognition of face or fingerprint identification device are used for identification.The image sensor in terminal is typically only capable to be enough in and take pictures at present,
It can not be used for iris recognition, to be badly in need of a kind of image sensor, now to acquire iris image.
For the problems in the relevant technologies, the embodiment of the invention provides a kind of image sensor 10, the image sensors
On mountable mobile terminal.Wherein, mobile terminal can be desktop computer, tablet computer, cell phone, smart home, TV
Machine, game machine, AR/VR/MR device etc., the embodiment of the present invention do not make specific limit to the type of mobile terminal.In addition, image sense
Surveying device can be mounted on the corresponding position of mobile terminal according to design requirement, and the embodiment of the present invention is not to image sensor 10
Installation site make specific limit.Referring to Fig. 1, which includes: the first pixel group 11, the second pixel group 12, control
Unit 13 and reader block 14 processed；
Control unit 13 is for obtaining first control signal, second control signal and third control signal, by the first control
Signal is sent to the first pixel group 11, and second control signal is sent to the second pixel group 12, and third control signal is sent to
Reader block 14；First pixel group 11 is used to capture visual signals according to first control signal, converts visual signals to
First picture signal is simultaneously transmitted to reader block 14；Second pixel group 12 is used to capture infrared ray letter according to second control signal
Number, the second picture signal is converted by infrared signal and is transmitted to reader block 14；Reader block 14 is used for according to third control
Signal processed exports the first picture signal and the second picture signal.
Wherein, the time for exposure of the first pixel group 11 and the second pixel group 12 may be the same or different, and the present invention is real
It applies example and this is not especially limited.In addition, the unit pixel size of the unit pixel size of the first pixel group and the second pixel group
Can be equally big, can also be with different big, the embodiment of the present invention is also not especially limited this.
Image sensor 10 provided in an embodiment of the present invention, the first pixel group 11 can be according to the first of the sending of control unit 13
Signal capture visual signals are controlled, and are translated into the first picture signal.Second pixel group 12 can be according to control unit 13
The second control signal of sending captures infrared signal, and is translated into the second picture signal.And reader block 14 can basis
The third that control unit 13 issues controls signal, the first picture signal of output and the second picture signal.Wherein, it is based on the first image
Signal can realize corresponding camera function, can acquire iris image based on the second picture signal, to realize subsequent iris recognition
Function.
As a kind of alternative embodiment, the time for exposure of the time for exposure of the first pixel group and the second pixel group
It is identical.
As a kind of alternative embodiment, the time for exposure of the time for exposure of the first pixel group and the second pixel group
It is different.
As a kind of alternative embodiment, the unit of the unit pixel size of the first pixel group and the second pixel group
Pixel Dimensions are identical.
As a kind of alternative embodiment, the unit of the unit pixel size of the first pixel group and the second pixel group
Pixel Dimensions are different.
All the above alternatives can form alternative embodiment of the invention using any combination, herein no longer
It repeats one by one.
Based on the content of above-mentioned Fig. 1 corresponding embodiment, the embodiment of the invention provides a kind of iris recognition camera head mould groups.
On the mountable mobile terminal of the camera module.Wherein, mobile terminal can be desktop computer, tablet computer, cell phone, intelligence
Energy household, television set, game machine, AR/VR/MR device etc., the embodiment of the present invention do not make specific limit to the type of mobile terminal.
In addition, camera module can be mounted on the corresponding position of mobile terminal according to design requirement, the embodiment of the present invention is not to taking the photograph
As the installation site of head mould group makees specific limit.Referring to fig. 2, which includes: image sensor 10, wiring board assembly
Part 20, optical filter 30, pedestal 40 and camera lens 50；
Light hole is provided on pedestal 40, camera lens 50 is placed in light hole；Camera lens 50 is located at the top of optical filter 30, filter
Mating plate 30 is located at the top of image sensor 10；Image sensor 10 is covered and installs assist side assembly parts 20 by pedestal 40
On, wiring board assembly parts 20 carry image sensor 10 and pedestal 40.Wherein, by the content of above-described embodiment it is found that image sense
Surveying device 10 can be used for capturing visual optical signal and infrared light signal.
Iris recognition camera head mould group provided in an embodiment of the present invention captures optical signal by camera lens 50, by optical filter 30
It filters to the optical signal of capture, so that image sensor 10 can capture visual optical signal and infrared light signal, and exports
First picture signal and the second picture signal.Wherein, corresponding camera function can be realized based on the first picture signal, is based on second
Picture signal can acquire iris image, to realize subsequent iris identifying function.Therefore, it can meet to take pictures simultaneously and know with iris
Other application scenarios.
In addition, due to being applicable to take pictures by a camera module and iris capturing scene, and do not have to single respectively
The solely structure of two camera modules of design, so that the difficulty of mobile terminal design and manufacture is reduced, so that mobile terminal is more
It is lightening.
In order to allow more light to pass through optical filter 30, and visual optical signal and infrared light signal can be distinguished.
As a kind of alternative embodiment, it is provided with filtering coating 30a in the one side of optical filter 30, is provided on the another side of optical filter 30
Antireflecting coating 30b.Specifically, optical filter 30 is towards may be provided with antireflecting coating 30b in the side of camera lens, and optical filter 30 is backwards
It may be provided with filtering coating 30a in the side of camera lens.
In order to distinguish visual optical signal and infrared light signal, as a kind of alternative embodiment, filtering coating 30a can divide
For the first filter area 31 and the second filter area 32；Corresponding first filter area 31 above first pixel group 11, in the second pixel group 12
Corresponding second filter area 32 in side.As shown in figure 3, Fig. 3 is the front schematic view of optical filter 30.
As a kind of alternative embodiment, the first filter area 31 is used to be in the visible light of 400nm to 650nm by wavelength
Line, the second filter area 32 are used to be in the infrared light of 700nm to 1000nm by wavelength.Specifically, due to the first filter area
31 can be by visible rays, so that visual signals can be captured by being located at the first pixel group of the lower section of the first filter area 31, can
The first picture signal is converted into depending on change signal and is transmitted to reader block 14.Due to the second filter area 32 can by infrared light,
Infrared light signal can be captured to be located at the second pixel group of 32 lower section of the second filter area, converts infrared light signal to
Second picture signal is simultaneously transmitted to reader block 14.The first picture signal and the second image letter that image sensor 10 exports
Number, it can be used for later period progress image merging treatment and depth calculation processing, with obtain taking pictures image and iris image.Such as Fig. 4
Shown, Fig. 4 is the optical texture relation schematic diagram of iris recognition camera head mould group.
In addition, iris recognition camera head mould group after the completion of assembling test, generally require image quality is carried out it is automatic white
Balance and color rendition correction.As a kind of alternative embodiment, image parameter compensation can be carried out by consistency routine burning.
All the above alternatives can form alternative embodiment of the invention using any combination, herein no longer
It repeats one by one.
Content based on the above embodiment, the embodiment of the invention provides a kind of iris recognition camera head mould groups.The camera shooting
On the head mountable mobile terminal of mould group.Wherein, mobile terminal can be desktop computer, tablet computer, cell phone, intelligent family
Residence, television set, game machine, AR/VR/MR device etc., the embodiment of the present invention do not make specific limit to the type of mobile terminal.Separately
Outside, camera module can be mounted on the corresponding position of mobile terminal, the embodiment of the present invention is not to camera shooting according to design requirement
The installation site of head mould group makees specific limit.Referring to Fig. 5, which includes: image sensor 10, wiring board assembly parts
20, the first optical filter 30, the second optical filter 60, pedestal 40 and camera lens 50；
Light hole is provided on pedestal 40, camera lens 50 is placed in light hole；Camera lens 50 is located at the top of optical filter, and first
Optical filter 30 is located at the top of the first pixel group 11 in image sensor 10, and the second optical filter 60 is located in image sensor 10
The top of two pixel groups 12；Image sensor 10 is covered and is installed on assist side assembly parts 20 by pedestal 40, wiring board assembly
Part 20 carries image sensor 10 and pedestal 40.
Wherein, by the content of above-described embodiment it is found that image sensor 10 can be used for capturing visual optical signal and infrared
Light signal.First optical filter 30 and the second optical filter 60 are for distinguishing visual optical signal and infrared light signal.Image sense
The structure and its function of surveying device 10 can refer to the content of above-described embodiment, and details are not described herein again.
As shown in fig. 6, Fig. 6 is the front schematic view of the first optical filter 30.As shown in fig. 7, Fig. 7 is the second optical filter 60
Front schematic view.
Iris recognition camera head mould group provided in an embodiment of the present invention captures optical signal by camera lens 50, is filtered by first
Piece 30 and the optical signals of 60 pairs of the second optical filter captures filter, so that image sensor 10 can capture visual optical signal and red
UV light signal, and export the first picture signal and the second picture signal.Wherein, it can be realized accordingly based on the first picture signal
Camera function can acquire iris image based on the second picture signal, to realize subsequent iris identifying function.Therefore, Neng Goutong
When meet the application scenarios taken pictures with iris recognition.
In addition, due to being applicable to take pictures by a camera module and iris capturing scene, and do not have to single respectively
The solely structure of two camera modules of design, so that the difficulty of mobile terminal design and manufacture is reduced, so that mobile terminal is more
It is lightening.
In order to allow more light to pass through optical filter, and visual optical signal and infrared light signal can be distinguished.Make
For a kind of alternative embodiment, it is provided with filtering coating in the one side of optical filter, is provided with antireflecting coating on the another side of optical filter.
Specifically, the first optical filter 30 is towards may be provided with antireflecting coating in the side of camera lens, and the first optical filter 30 is backwards to camera lens
It may be provided with filtering coating in the side.Second optical filter 60 is towards may be provided with antireflecting coating in the side of camera lens, and second
Optical filter 60 may be provided with filtering coating in the side of camera lens.Corresponding first optical filter 30 above first pixel group 11
Filtering coating, the filtering coating of corresponding second optical filter 60 above the second pixel group 12.
As a kind of alternative embodiment, the first optical filter 30 is used to be in the visible light of 400nm to 650nm by wavelength
Line, the second optical filter 60 are used to be in the infrared light of 700nm to 1000nm by wavelength.Specifically, due to the first optical filter
30, so that visual signals can be captured by being located at the first pixel group 11 of 30 lower section of the first optical filter, can be incited somebody to action by visible rays
Visual signals are converted into the first picture signal and are transmitted to reader block 14.Since the second optical filter 60 can pass through infrared light
Line, so that infrared light signal can be captured by being located at the second pixel group 12 of 60 lower section of the second optical filter, by infrared light signal
It is converted into the second picture signal and is transmitted to reader block 14.The first picture signal and the second figure that image sensor 10 exports
As signal, it can be used for later period progress image merging treatment and depth calculation processing, with obtain taking pictures image and iris image.Such as
Shown in Fig. 8, Fig. 8 is the optical texture relation schematic diagram of iris recognition camera head mould group.
In addition, iris recognition camera head mould group after the completion of assembling test, generally require image quality is carried out it is automatic white
Balance and color rendition correction.As a kind of alternative embodiment, image parameter compensation can be carried out by consistency routine burning.
All the above alternatives can form alternative embodiment of the invention using any combination, herein no longer
It repeats one by one.
Content based on the above embodiment, the embodiment of the invention provides a kind of iris recognition camera head mould groups.The camera shooting
On the head mountable mobile terminal of mould group.Wherein, mobile terminal can be desktop computer, tablet computer, cell phone, intelligent family
Residence, television set, game machine, AR/VR/MR device etc., the embodiment of the present invention do not make specific limit to the type of mobile terminal.Separately
Outside, camera module can be mounted on the corresponding position of mobile terminal, the embodiment of the present invention is not to camera shooting according to design requirement
The installation site of head mould group makees specific limit.Referring to Fig. 9, which includes: image sensor 10, wiring board assembly parts
20, optical filter 30, pedestal 40, the first camera lens 50 and the second camera lens 60；
The first light hole and the second light hole are provided on pedestal 40, the first camera lens 50 is placed in the first light hole, the
Two camera lenses 60 are placed in the second light hole；First camera lens 50 and the second camera lens 60 are located at the top of optical filter 30, optical filter 30
Positioned at the top of image sensor 10；Image sensor 10 is covered and is installed on assist side assembly parts 20 by pedestal 40, route
Plate assembly parts 20 carry image sensor 10 and pedestal 40.
Wherein, by the content of above-described embodiment it is found that image sensor 10 can be used for capturing visual optical signal and infrared
Light signal.Corresponding first light hole above first pixel group, the second corresponding second light hole in pixel group top.Image sensor
10 structure and its function can refer to the content of above-described embodiment, and details are not described herein again.
Iris recognition camera head mould group provided in an embodiment of the present invention captures light by the first camera lens 50 and the second camera lens 60
Signal, the optical signal captured by 30 Duis of optical filter filter, so that image sensor 10 can capture visual optical signal and infrared
Light signal, and export the first picture signal and the second picture signal.Wherein, corresponding bat can be realized based on the first picture signal
According to function, iris image can be acquired based on the second picture signal, to realize subsequent iris identifying function.It therefore, can be simultaneously
Meet the application scenarios taken pictures with iris recognition.
In addition, due to being applicable to take pictures by a camera module and iris capturing scene, and do not have to single respectively
The solely structure of two camera modules of design, so that the difficulty of mobile terminal design and manufacture is reduced, so that mobile terminal is more
It is lightening.
In order to allow more light to pass through optical filter 30, and visual optical signal and infrared light signal can be distinguished.
As a kind of alternative embodiment, it is provided with filtering coating 30a in the one side of optical filter 30, is provided on the another side of optical filter 30
Antireflecting coating 30b.Specifically, optical filter 30 is towards may be provided with antireflecting coating 30b in the side of camera lens, and optical filter 30 is backwards
It may be provided with filtering coating 30a in the side of camera lens.
In order to distinguish visual optical signal and infrared light signal, as a kind of alternative embodiment, filtering coating 30a can divide
For the first filter area 31 and the second filter area 32；Corresponding first filter area 31 above first pixel group 11, in the second pixel group 12
Corresponding second filter area 32 in side.First camera lens 50 is located at the top of the first filter area 31, and the second camera lens 60 is located at the second filter area
32 top.
As a kind of alternative embodiment, the first camera lens 50 is wide-angle lens or narrow angle mirror head, and the second camera lens 60 is narrow angle mirror
Head.
As a kind of alternative embodiment, the first filter area 31 is used to be in the visible light of 400nm to 650nm by wavelength
Line, the second filter area 32 are used to be in the infrared light of 700nm to 1000nm by wavelength.Specifically, due to the first filter area
31, so that visual signals can be captured by being located at the first pixel group 11 of 31 lower section of the first filter area, can be incited somebody to action by visible rays
Visual signals are converted into the first picture signal and are transmitted to reader block 14.Since the second filter area 32 can pass through infrared light
Line, so that infrared light signal can be captured by being located at the second pixel group 12 of 32 lower section of the second filter area, by infrared light signal
It is converted into the second picture signal and is transmitted to reader block 14.The first picture signal and the second figure that image sensor 10 exports
As signal, it can be used for later period progress image merging treatment and depth calculation processing, with obtain taking pictures image and iris image.Such as
Shown in Figure 10, Figure 10 is the optical texture relation schematic diagram of iris recognition camera head mould group.
In addition, iris recognition camera head mould group after the completion of assembling test, generally require image quality is carried out it is automatic white
Balance and color rendition correction.As a kind of alternative embodiment, image parameter compensation can be carried out by consistency routine burning.
All the above alternatives can form alternative embodiment of the invention using any combination, herein no longer
It repeats one by one.
Content based on the above embodiment, the embodiment of the invention provides a kind of iris recognition camera head mould groups.The camera shooting
On the head mountable mobile terminal of mould group.Wherein, mobile terminal can be desktop computer, tablet computer, cell phone, intelligent family
Residence, television set, game machine, AR/VR/MR device etc., the embodiment of the present invention do not make specific limit to the type of mobile terminal.Separately
Outside, camera module can be mounted on the corresponding position of mobile terminal, the embodiment of the present invention is not to camera shooting according to design requirement
The installation site of head mould group makees specific limit.Referring to Figure 11, which includes: image sensor 10, wiring board assembly
Part 20, the first optical filter 30, the second optical filter 60, pedestal 40, the first camera lens 50 and the second camera lens 70；
The first light hole and the second light hole are provided on pedestal 40, the first camera lens 50 is placed in the first light hole, the
Two camera lenses 70 are placed in the second light hole；First optical filter 30 and the second optical filter 60 are located at the top of image sensor 10,
First optical filter 30 is located at the top of the first pixel group 11 in image sensor 10, and the second optical filter 60 is located at image sensor 10
In the second pixel group 12 top；First camera lens 50 is located at the top of the first optical filter 30, and the second camera lens 70 is located at second and filters
The top of piece 60；Image sensor 10 is covered and is installed on assist side assembly parts 20 by pedestal 40, and wiring board assembly parts 20 are held
Carry image sensor 10 and pedestal 40.
Wherein, by the content of above-described embodiment it is found that image sensor 10 can be used for capturing visual optical signal and infrared
Light signal.First optical filter 30 and the second optical filter 60 are for distinguishing visual optical signal and infrared light signal.First picture
Corresponding first light hole in element group top, the second corresponding second light hole in pixel group top.The structure and its function of image sensor 10
The content of above-described embodiment can be can refer to, details are not described herein again.
Iris recognition camera head mould group provided in an embodiment of the present invention captures light by the first camera lens 50 and the second camera lens 60
Signal, the optical signal captured by 30 Duis of the first optical filter filter, and obtain visual optical signal, are captured by 60 Duis of the second optical filter
Optical signal filter, obtain infrared signal.Image sensor 10 is based on the visual optical signal captured and infrared light
Signal, the first picture signal of output and the second picture signal.Wherein, function of taking pictures accordingly can be realized based on the first picture signal
Can, iris image can be acquired based on the second picture signal, to realize subsequent iris identifying function.Therefore, can meet simultaneously
The application scenarios taken pictures with iris recognition.
In addition, due to being applicable to take pictures by a camera module and iris capturing scene, and do not have to single respectively
The solely structure of two camera modules of design, so that the difficulty of mobile terminal design and manufacture is reduced, so that mobile terminal is more
It is lightening.
In order to allow more light to pass through optical filter 30, and visual optical signal and infrared light signal can be distinguished.
As a kind of alternative embodiment, it is provided with filtering coating 30a in the one side of optical filter 30, is provided on the another side of optical filter 30
Antireflecting coating 30b.Specifically, the first optical filter 30 is towards may be provided with antireflecting coating, the first optical filter in the side of camera lens
30 may be provided with filtering coating in the side of camera lens.Second optical filter 60 is towards may be provided with increasing in the side of camera lens
Antireflective coating layer, the second optical filter 60 may be provided with filtering coating in the side of camera lens.Corresponding the above first pixel group 11
The filtering coating of one optical filter 30, the filtering coating of corresponding second optical filter 60 above the second pixel group 12.
As a kind of alternative embodiment, the first camera lens 50 is wide-angle lens or narrow angle mirror head, and the second camera lens 60 is narrow angle mirror
Head.
As a kind of alternative embodiment, the first filter area 31 is used to be in the visible light of 400nm to 650nm by wavelength
Line, the second filter area 32 are used to be in the infrared light of 700nm to 1000nm by wavelength.Specifically, due to the first filter area
31, so that visual signals can be captured by being located at the first pixel group 11 of 31 lower section of the first filter area, can be incited somebody to action by visible rays
Visual signals are converted into the first picture signal and are transmitted to reader block 14.Since the second filter area 32 can pass through infrared light
Line, so that infrared light signal can be captured by being located at the second pixel group 12 of 32 lower section of the second filter area, by infrared light signal
It is converted into the second picture signal and is transmitted to reader block 14.The first picture signal and the second figure that image sensor 10 exports
As signal, it can be used for later period progress image merging treatment and depth calculation processing, with obtain taking pictures image and iris image.Such as
Shown in Figure 12, Figure 12 is the optical texture relation schematic diagram of iris recognition camera head mould group.
In addition, iris recognition camera head mould group after the completion of assembling test, generally require image quality is carried out it is automatic white
Balance and color rendition correction.As a kind of alternative embodiment, image parameter compensation can be carried out by consistency routine burning.
All the above alternatives can form alternative embodiment of the invention using any combination, herein no longer
It repeats one by one.
Finally, the present processes are only preferable embodiment, it is not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification, equivalent replacement, improvement and so on should be included in protection of the invention
Within the scope of.
Claims (15)
1. a kind of image sensor characterized by comprising the first pixel group, the second pixel group, control unit and reader
Block；
Described control unit believes the first control for obtaining first control signal, second control signal and third control signal
Number it is sent to the first pixel group, second control signal is sent to the second pixel group, third control signal is sent
To reader block；The first pixel group is used to capture visual signals according to the first control signal, by the visualization
Signal is converted into the first picture signal and is transmitted to the reader block；The second pixel group is used for according to second control
Signal capture infrared signal converts the second picture signal for the infrared signal and is transmitted to the reader block；Institute
Reader block is stated for controlling signal according to the third, exports the first image signal and second picture signal.
2. image sensor according to claim 1, which is characterized in that the time for exposure of the first pixel group with it is described
The time for exposure of second pixel group is identical.
3. image sensor according to claim 1, which is characterized in that the time for exposure of the first pixel group with it is described
The time for exposure of second pixel group is different.
4. image sensor according to claim 1, which is characterized in that the unit pixel size of the first pixel group with
The unit pixel size of the second pixel group is identical.
5. image sensor according to claim 1, which is characterized in that the unit pixel size of the first pixel group with
The unit pixel size of the second pixel group is different.
6. a kind of iris recognition camera head mould group characterized by comprising in claim 1 to 5 described in any claim
Image sensor, optical filter, pedestal, camera lens and wiring board assembly parts；
Light hole is provided on the pedestal, the camera lens is placed in the light hole；The camera lens is located at the optical filter
Top, the optical filter is located at the top of described image sensor；Described image sensor is covered and is installed by the pedestal
On the wiring board assembly parts, the wiring board assembly parts carrying described image sensor and the pedestal.
7. camera module according to claim 6, which is characterized in that be provided with filtering in the one side of the optical filter and apply
Layer, antireflecting coating is provided on the another side of the optical filter.
8. camera module according to claim 7, which is characterized in that the filtering coating is divided into the first filter area and
Two filter areas；The filtering coating of corresponding first filter area above the first pixel group, the second pixel group top are right
Answer the filtering coating of second filter area.
9. camera module according to claim 8, which is characterized in that first filter area by wavelength for being in
The visible rays of 400nm to 650nm, the second filter area are used to be in the infrared light of 700nm to 1000nm by wavelength.
10. camera module according to claim 7, which is characterized in that the optical filter includes the first optical filter and the
Two optical filters；The filtering coating of corresponding first optical filter above the first pixel group, the second pixel group top are right
Answer the filtering coating of second optical filter.
11. camera module according to claim 10, which is characterized in that first optical filter is used for by wavelength
In the visible rays of 400nm to 650nm, second optical filter is used to be in the infrared light of 700nm to 1000nm by wavelength
Line.
12. camera module according to claim 8 or claim 9, which is characterized in that be provided with the first light hole on the pedestal
And second light hole, the camera lens include the first camera lens and the second camera lens；Corresponding described first is logical above the first pixel group
Unthreaded hole, corresponding second light hole in the second pixel group top；First camera lens is placed in first light hole,
Second camera lens is placed in second light hole；First camera lens is located at the top of first filter area, described
Second camera lens is located at the top of second filter area.
13. camera module described in 0 or 11 according to claim 1, which is characterized in that be provided with the first light passing on the pedestal
Hole and the second light hole, the camera lens include the first camera lens and the second camera lens；Corresponding described first above the first pixel group
Light hole, corresponding second light hole in the second pixel group top；First camera lens is placed on first light hole
In, second camera lens is placed in second light hole；First camera lens is located at the top of first optical filter, institute
State the top that the second camera lens is located at second optical filter.
14. camera module according to claim 12, which is characterized in that first camera lens is wide-angle lens or narrow angle
Camera lens, second camera lens are narrow angle mirror head.
15. camera module according to claim 13, which is characterized in that first camera lens is wide-angle lens or narrow angle
Camera lens, second camera lens are narrow angle mirror head.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710582508.0A CN109274862A (en) | 2017-07-17 | 2017-07-17 | Image sensor and iris recognition camera head mould group |
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| CN201710582508.0A CN109274862A (en) | 2017-07-17 | 2017-07-17 | Image sensor and iris recognition camera head mould group |
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Effective date of registration: 20191230 Address after: 518109 first floor, building 1b, yunantong Industrial Park, langrong Road, Dalang community, Dalang street, Longhua District, Shenzhen City, Guangdong Province Applicant after: Shenzhen Jinghong Technology Co., Ltd Address before: 201203 Shanghai City, Pudong New Area free trade zone fanchun Road No. 400 Building 1 layer 3 Applicant before: Shanghai Jinghong Electronic Technology Co., Ltd. |
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