CN108713203A - A kind of light source module group, image acquiring device, identity recognition device and electronic equipment - Google Patents
A kind of light source module group, image acquiring device, identity recognition device and electronic equipment Download PDFInfo
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- CN108713203A CN108713203A CN201880000787.8A CN201880000787A CN108713203A CN 108713203 A CN108713203 A CN 108713203A CN 201880000787 A CN201880000787 A CN 201880000787A CN 108713203 A CN108713203 A CN 108713203A
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- light
- light source
- source module
- module group
- speculum
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; 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
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; 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
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- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
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- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The application is suitable for optical technical field, provides a kind of light source module group.Light source module group includes laser, Beam former and speculum.The laser is for emitting non-collimated infrared laser beam.Speculum reflects infrared laser beam, to extend the light path of infrared laser beam, increases the transmission distance of infrared laser beam so that the area that area source is formed by by the infrared laser beam that the speculum reflects increases.Beam former receives the infrared laser beam that speculum is reflected, and the infrared laser beam received is modulated, and forms patterned structure light.The application also provides a kind of image acquiring device, identity recognition device and electronic equipment using light source module group.The infrared laser beam that the smaller laser of light-emitting area is emitted is converted into the area source of larger area by the application, the expensive laser with larger light-emitting area need not be used, to effectively reduce production cost.
Description
Technical field
The application is belonged to optical technical field more particularly to a kind of light source module group and is obtained using the image of the light source module group
Device, identity recognition device and electronic equipment.
Background technology
" structure light (structure light) " refers to the light with specific modality, is designed to striped form, rule
Then dot matrix form, grid form, speckle form, coding form etc., the light shape of even more complicated form.It is fluffy with optical technology
The exhibition of breaking out, will be used wider and wider for structure light is general, such as face recognition, projecting apparatus, the reproduction of 3D profiles, range measurement, anti-
Puppet identification etc..Therefore how a kind of emphasis that light source module group that capableing of emitting structural light is studied as people is provided.For example, when defeated
When going out the structure light of the forms such as striped, an area source is needed, but typically now uses light source of the laser as structure light,
The light-emitting area of laser is generally smaller, somewhat expensive according to the laser with larger light-emitting area, can greatly improve life
Produce cost.
Invention content
Technical problems to be solved in this application are to provide a kind of light source module group, image acquiring device, identification dress
It sets and electronic equipment, it is intended to can effectively reduce production cost.
The application is achieved in that a kind of light source module group comprising laser, Beam former and speculum.This swashs
Light device is for emitting infrared laser beam.The speculum is for reflecting the infrared laser beam, to extend the infrared laser beam
Light path, increase the transmission distance of the infrared laser beam so that face light is formed by by the infrared laser beam that the speculum reflects
The area in source increases.The Beam former is used to receive the infrared laser beam that the speculum is reflected, and infrared by what is received
Laser beam is modulated, and forms patterned structure light.
In some embodiments, which further includes a hollow packaging body.The laser, the light beam are formed
Device and the speculum are accommodated in the packaging body.
In some embodiments, which includes a light out part.The light out part is corresponding with the Beam former to be set
It sets so that the Beam former is formed by structure light and can be projected from the light out part.
In some embodiments, light-emitting surface of the light-emitting surface of the laser perpendicular to the light out part.
In some embodiments, which is located at the lower section of the Beam former, and positioned at the light extraction of the laser
The side in face.
In some embodiments, which is [ relative to the range of tilt angles of the light-emitting surface of the laser;30,
60]Degree.
In some embodiments, which is 45 degree relative to the range of tilt angles of the light-emitting surface of the laser.
In some embodiments, which is transparent or translucent.
In some embodiments, which further includes the accommodating cavity and storage tank being mutually communicated, the laser and should
Speculum is accommodated in the accommodating cavity, which is accommodated in the storage tank.
In some embodiments, the laser and the speculum are separately positioned on the opposite of the length direction of the accommodating cavity
Both ends, to further increase the transmission distance of the infrared laser beam.
In some embodiments, which further includes collimation optics.It is anti-that the collimation optics are located at this
It penetrates in the light path between mirror and the Beam former, the infrared laser beam for being reflected the speculum is calibrated, and is formed
Collimated light beam；The collimated light beam, which enters in the Beam former, is modulated into the patterned structure light.
In some embodiments, which is microlens array or Fresnel Lenses.
In some embodiments, which includes diffraction optical element.
Present invention also provides a kind of image acquiring devices comprising sensing module and above-mentioned light source module group.The light source
Module is used to emit patterned structure light, and will be on the project structured light a to object.The sensing module is for obtaining quilt
The image for the structure light that the object is reflected.
In some embodiments, which further comprises processor, for being obtained according to the sensing module
The image taken exports the 3D figures of the object.
Present invention also provides a kind of identity recognition devices comprising sensing module, identification module and above-mentioned light source die
Group.The light source module group is for emitting patterned structure light, and by the project structured light a to object under test.The sensing module is used
In the image for obtaining the structure light reflected by the object under test.The identification module is used for according to acquired in the image acquiring device
Image carry out identification.
In some embodiments, which includes face authentification device.
Present invention also provides a kind of electronic equipment, including it is any one of above-mentioned described in identity recognition device, it is described
Electronic equipment is used to whether execute corresponding function according to the recognition result of the identity recognition device to correspond to.
In some embodiments, corresponding function includes unlock, payment, starts appointing in the application program to prestore
Meaning is one or more of.
Compared with prior art, advantageous effect is the application：The light source module group is emitted infrared using the laser
The angle of divergence of laser beam extends the light path of the non-collimated infrared laser beam by way of speculum reflection, non-to increase this
The transmission distance of the infrared laser beam of collimation so that the area that the non-collimated infrared laser beam is formed by area source increases,
To which the infrared laser beam that the smaller laser of light-emitting area is emitted is converted into the area source of larger area, therefore do not need
Using the expensive laser with larger light-emitting area, production cost is effectively reduced.
Description of the drawings
Fig. 1 is the structural schematic diagram for the light source module group that the application first embodiment provides.
Fig. 2 is the structural schematic diagram for the image acquiring device that the application second embodiment provides.
Fig. 3 is the structural schematic diagram for the identity recognition device that the application 3rd embodiment provides.
Fig. 4 is the structural schematic diagram for the electronic equipment that the application fourth embodiment provides.
Specific implementation mode
It is with reference to the accompanying drawings and embodiments, right in order to make the object, technical solution and advantage of the application be more clearly understood
The application is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the application, and
It is not used in restriction the application.
Following disclosure provides many different embodiments or example is used for realizing the different structure of the application.In order to
Simplify disclosure herein, hereinafter to the component of specific examples and being set for describing.Certainly, they are merely examples, and
And purpose does not lie in limitation the application.In addition, the application can in different examples repeat reference numerals and/or reference letter,
This repetition is for purposes of simplicity and clarity, itself not indicate between discussed various embodiments and/or setting
Relationship.
Further, described feature, structure can be incorporated in one or more embodiment party in any suitable manner
In formula.In the following description, many details are provided to fully understand presently filed embodiment to provide.So
And one of ordinary skill in the art would recognize that, without one or more in the specific detail, or using other structures,
Constituent element etc. can also put into practice the technical solution of the application.In other cases, it is not shown in detail or describes known features or behaviour
Make to avoid fuzzy the application.
As shown in Figure 1, a kind of light source module group 100 that the application first embodiment is provided comprising a hollow envelope
Dress body 10 and laser 20, speculum 30, the Beam former 40 being accommodated in the packaging body 10.
The packaging body 10 includes 11, storage tanks 12 of an accommodating cavity and a light out part 13.The storage tank 12 with should
Accommodating cavity 11 is connected.The light out part 13 is arranged in side of the storage tank 12 far from the accommodating cavity 11.The light out part 13 is used for
It receives and the Beam former 40 is allowed to be formed by structure light and project the packaging body 10.The light out part 13 be, for example, it is transparent or
It is translucent.
In the present embodiment, the substantially rectangular-shape of packaging body 10, the bottom surface for being parallel to the packaging body 10 using one
And the packaging body 10 is divided into first part and second part by the cross section of top surface, which is inside the first part
Space, the storage tank 12 are to be located on the length direction of the packaging body the wherein space of the inside of one end in the second part, should
Part in second part other than the storage tank 12 is for example solid construction.
The laser 20 is arranged in the accommodating cavity 11, for emitting infrared laser beam.The infrared laser beam for example with
Certain dispersion angle is non-collimated.The present embodiment uses the infrared laser of lateral emitting, and the laser 20 is luminous
Light-emitting surface of the face 21 perpendicular to the light out part 13.The laser 20 can be semiconductor edge-emitting laser device (Edge Emitting
Laser), vertical cavity surface-emitting laser (VerticalCavity Surface Emitting Laser, VCSEL) or
Other types of laser.
Ground is changed, in other embodiments, which can also be the luminous light source in front, when the laser 20
When being assembled into the accommodating cavity 11, which puts, light-emitting surface of the light-emitting surface 21 perpendicular to the light out part 13.
The speculum 30 is arranged in the accommodating cavity 11, and the light path of the infrared laser beam emitted positioned at the laser 20
On, the infrared laser beam emitted for receiving the laser 20, and the infrared laser beam received is reflected, to prolong
The light path of the long infrared laser beam, increases the transmission distance of the infrared laser beam so that is reflected by the speculum 30 infrared sharp
The area that light beam is formed by area source increases.In the present embodiment, the light-emitting surface of the speculum 30 relative to the laser 20
21 range of tilt angles Li Ruwei [30,60]Degree.Correspondingly, the light-emitting surface 21 of the speculum 30 relative to the laser 20
Angle of inclination Li Ruwei [30,60]Any one numerical value in degree.In the present embodiment, which is preferably 45 degree.
The angle of divergence of the infrared laser beam emitted by the laser 20 is smaller, the laser 20 and this is anti-
The opposite end that mirror 30 is separately positioned on the length direction of the accommodating cavity 11 is penetrated, to efficiently use the space of the accommodating cavity 11, into
One step increases the distance between the speculum 30 and the laser 20, extends the light path of the infrared laser beam, to further increase
The big infrared beam is formed by the area of area source.
In addition, other optical elements are not arranged in the top for corresponding to the laser 20 in the packaging body 10, to advantageous yet
It radiates in the laser 20.
The Beam former 40 setting is correspondingly arranged in the storage tank 12, and with the light out part 13.The Beam former
40 are located in the light path of the speculum 30, the infrared laser beam that is reflected for receiving the speculum 30, and will be received
Infrared laser beam is modulated, and forms patterned structure light.In the present embodiment, the Beam former 40 is for example substantially long
Cube shape, and include transparent substrate and be formed in the upper phase wavestrip diffraction structure of transparent substrate.By the Beam former
Treated that infrared laser beam can project to any plane appropriate or spatially, form swashing with certain pattern for 40 diffraction
Optical lattice.By changing the phase wavestrip diffraction structure, the Beam former 40 can be changed treated infrared laser beam
Pattern.The Beam former 40 is such as, but not limited to include diffraction optical element (Diffractive Optical
Element, DOE).However, ground is changed, and in other embodiments, the Beam former 40 or other suitable types
Device, can realize to form patterned structure light.The patterned structure light is for example in striped formula, dot matrix, net
Format, coding type etc..
The course of work of the light source module group 100 is：The laser 20 emits infrared laser beam, and reaches the speculum 30,
It is reflected by the speculum 30, to increase the transmission distance of the infrared laser beam so that the infrared laser beam is formed by area source
Area increase；The Beam former 40 receives the area source, and the infrared laser beam in the area source received is adjusted
System, forms patterned structure light, and finally the structure light is projected by the light out part 13.
In other embodiments, a standard is set in light path that also can be between the speculum 30 and the Beam former 40
Straight optical element (such as microlens array or Fresnel Lenses) non-collimated infrared swashs for reflected the speculum 30
Light beam is calibrated, and directional light is formed, to obtain the area source of a uniform intensity distribution.The area source quilt of uniform intensity distribution
After the Beam former 40 modulation, the structure light of uniform intensity distribution can be obtained, and the transfer efficiency of structure light can be improved
And pattern accuracy.At this point, the course of work of the light source module group 100 is：The non-collimated infrared laser that the laser 20 is launched
After beam is reflected by the speculum 30, the larger area source of an area is formed；Non-collimated infrared laser beam in the area source
The infrared laser beam to form collimation is calibrated into the collimation optics, the infrared laser beam then collimated enters the light beam shape
It grows up to be a useful person and 40 is modulated into structure light, finally the structure light is projected from the light out part 13.
Further, as shown in Fig. 2, the application second embodiment provides a kind of image acquiring device 200 comprising sensing
Module 201 and such as above-mentioned light source module group 100.The light source module group 100 is for emitting patterned structure light, and by the structure light
It is projected on an object.The sensing module 201 is used to obtain the image of the structure light reflected by the object.
In addition, in certain embodiments, which further comprises processor 203, for according to the biography
The image that sense module 201 obtains exports the 3D figures of the object.
Further, as shown in figure 3, the application 3rd embodiment provides a kind of identity recognition device 300 comprising sensing
Module 301, identification module 302 and above-mentioned light source module group 100.The light source module group 100 is used to emit patterned structure light, and
By the project structured light a to object under test.The sensing module 301 is for obtaining the structure light reflected by the object under test
Image.The identification module 302 is used to carry out identification according to the image that the sensing module 301 is obtained.
The identity recognition device 300 is, for example, face authentification device.So, which can also be used for identifying
Other proper sites of human body, or even other organisms or inorganic matter for identification.
Further, as shown in figure 4, the application fourth embodiment provides a kind of electronic equipment 400, such as but do not limit to
In the electronics for suitable types such as consumer electrical product, household formula electronic product, vehicular electronic product, financial terminal products
Product.Wherein, consumer electrical product for example but is not limited to mobile phone, tablet computer, laptop, tabletop display, electricity
Brain all-in-one machine etc..Household formula electronic product such as but being not limited to intelligent door lock, TV, refrigerator, Wearable.Vehicular
Electronic product such as but being not limited to automatic navigator, vehicle-carrying DVD.Financial terminal product for example but be not limited to ATM machine, from
Help the terminal etc. of transacting business.The electronic equipment 400 includes above-mentioned identity recognition device 300.400 basis of the electronic equipment
Whether the identification result of the identification authentication device 300 executes corresponding function to correspond to.Corresponding function is for example
But to be not limited to include unlock, payment, starts any one or a few in the application program that prestores.
In the present embodiment, it is illustrated so that electronic equipment 400 is mobile phone as an example.What the mobile phone for example, shielded comprehensively
Mobile phone, the identity recognition device 300 are for example arranged on the positive top of mobile phone.Certainly, the mobile phone is also not restricted to entirely
Face mobile phone.
For example, when user needs to boot up unlock, the screen for lifting mobile phone or touch mobile phone can act as wake-up
The effect of the identity recognition device 300.After the identity recognition device 300 is waken up, identify that the user in front of the mobile phone is
When legal user, then lock screen is solved.
Compared with prior art, the light source module group 100 of the application, image acquiring device 100, identity recognition device 300
And electronic equipment 400, using the laser 20 transmitting infrared laser beam possessed by the angle of divergence, pass through the speculum 30 reflect
Mode extend the light path of the infrared laser beam, to increase the transmission distance of the infrared laser beam so that the infrared laser beam institute
The area of the area source of formation increases, to by the infrared laser beam that the smaller laser 20 of light-emitting area is emitted be converted into compared with
The area source of large area need not use the expensive laser with larger light-emitting area, effectively reduce production cost.Together
When, since the speculum 30 bends the light path of the infrared laser beam, it can effectively reduce the body of the light source module group 100
Product.
In the description of this specification, reference term " embodiment ", " certain embodiments ", " schematically implementation
What the description of mode ", " example ", " specific example " or " some examples " etc. meant to describe in conjunction with the embodiment or example
Particular features, structures, materials, or characteristics are contained at least one embodiment or example of the application.In this specification
In, schematic expression of the above terms are not necessarily referring to identical embodiment or example.Moreover, the specific spy of description
Sign, structure, material or feature can be combined in any suitable manner in any one or more embodiments or example.
The foregoing is merely the preferred embodiments of the application, not limiting the application, all essences in the application
All any modification, equivalent and improvement etc., should be included within the protection domain of the application made by within refreshing and principle.
Claims (19)
1. a kind of light source module group comprising laser and Beam former, which is characterized in that the light source module group further includes reflection
Mirror；The laser is for emitting non-collimated infrared laser beam；The speculum is for reflecting the infrared laser beam, to prolong
The light path of the long infrared laser beam, increases the transmission distance of the infrared laser beam so that the infrared laser reflected by the speculum
The area that beam is formed by area source increases；The Beam former is used to receive the infrared laser beam that the speculum is reflected, and
The infrared laser beam received is modulated, patterned structure light is formed.
2. light source module group as described in claim 1, which is characterized in that the light source module group further includes a hollow packaging body,
The laser, the Beam former and the speculum are accommodated in the packaging body.
3. light source module group as claimed in claim 2, which is characterized in that the packaging body include a light out part, the light out part with
The Beam former is correspondingly arranged so that the Beam former is formed by structure light and can be projected from the light out part.
4. light source module group as claimed in claim 3, which is characterized in that the light-emitting surface of the laser goes out perpendicular to the light out part
Smooth surface.
5. light source module group as claimed in claim 4, which is characterized in that the speculum is located at the lower section of the Beam former, and
Positioned at the side of the light-emitting surface of the laser.
6. light source module group as claimed in claim 5, which is characterized in that the speculum inclines relative to the light-emitting surface of the laser
Rake angle Fan Weiwei [30,60]Degree.
7. light source module group as claimed in claim 5, which is characterized in that the speculum inclines relative to the light-emitting surface of the laser
Ranging from 45 degree of rake angle.
8. light source module group as claimed in claim 3, which is characterized in that the light out part is transparent or translucent.
9. light source module group as claimed in claim 2, which is characterized in that the packaging body further includes the accommodating cavity being mutually communicated and appearance
Slot is set, the laser and the speculum are accommodated in the accommodating cavity, which is accommodated in the storage tank.
10. light source module group as claimed in claim 9, which is characterized in that the laser and the speculum are separately positioned on the appearance
The opposite end for setting the length direction of chamber, to further increase the transmission distance of the infrared laser beam.
11. light source module group as described in claim 1, which is characterized in that the light source module group further includes collimation optics, the standard
Straight optical element is located in the light path between the speculum and the Beam former, infrared sharp for being reflected the speculum
Light beam is calibrated, and collimated light beam is formed；The collimated light beam, which enters in the Beam former, is modulated into the patterned structure
Light.
12. light source module group as claimed in claim 11, which is characterized in that the collimation optics are microlens array or luxuriant and rich with fragrance alunite
That lens.
13. the light source module group as described in any one of claim 1-12, which is characterized in that the Beam former includes diffraction
Optical element.
14. a kind of image acquiring device, which is characterized in that it includes sensing module and any one of such as the claims 1-13
The light source module group, the light source module group are used to emit patterned structure light, and will be on the project structured light a to object；
The sensing module is used to obtain the image of the structure light reflected by the object.
15. image acquiring device as claimed in claim 14, which is characterized in that the image acquiring device further comprises handling
Device, the image for being obtained according to the sensing module export the 3D figures of the object.
16. a kind of identity recognition device, which is characterized in that it includes appointing in sensing module, identification module and claim 1-13
Light source module group described in one, the light source module group is for emitting patterned structure light, and by the project structured light to one to be measured
Object；The sensing module is used to obtain the image of the structure light reflected by the object under test；The identification module is used for basis should
It senses the image acquired in module and carries out identification.
17. identity recognition device as claimed in claim 16, which is characterized in that the identity recognition device includes face recognition dress
It sets.
18. the identity recognition device described in any one of a kind of electronic equipment, including claim 16-17, the electronics is set
It is ready for use on and whether corresponding function is executed to correspond to according to the recognition result of the identity recognition device.
19. electronic equipment as claimed in claim 18, it is characterised in that：Corresponding function includes unlock, payment, starts
Any one or a few in the application program to prestore.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2018/086148 WO2019213861A1 (en) | 2018-05-09 | 2018-05-09 | Light source module, image acquisition device, identity recognition device, and electronic apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108713203A true CN108713203A (en) | 2018-10-26 |
Family
ID=63873591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880000787.8A Pending CN108713203A (en) | 2018-05-09 | 2018-05-09 | A kind of light source module group, image acquiring device, identity recognition device and electronic equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108713203A (en) |
| WO (1) | WO2019213861A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113050067A (en) * | 2021-02-26 | 2021-06-29 | 嘉兴驭光光电科技有限公司 | Laser projection module |
| US11287734B2 (en) * | 2019-11-20 | 2022-03-29 | Triple Win Technology (Shenzhen) Co. Ltd. | Light projection device and electronic device using same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113688642B (en) * | 2020-05-19 | 2024-03-22 | 中国电子科技集团公司第十一研究所 | Identity recognition system and method |
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| US20180100733A1 (en) * | 2015-06-23 | 2018-04-12 | Hand Held Products, Inc. | Optical pattern projector |
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| WO2012132086A1 (en) * | 2011-03-25 | 2012-10-04 | 三洋電機株式会社 | Information acquisition device and object detection device having information acquisition device mounted therein |
| TWI583991B (en) * | 2014-11-14 | 2017-05-21 | 華錦光電科技股份有限公司 | Doe and laser diode-doe module |
| CN205356533U (en) * | 2015-12-24 | 2016-06-29 | 深圳奥比中光科技有限公司 | Compact structure's image information processing apparatus , sharp optical module and light path structure |
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| US20180100733A1 (en) * | 2015-06-23 | 2018-04-12 | Hand Held Products, Inc. | Optical pattern projector |
| CN105450949A (en) * | 2015-12-24 | 2016-03-30 | 深圳奥比中光科技有限公司 | Image information processing device with compact structure and laser module used therein |
| CN107423716A (en) * | 2017-07-31 | 2017-12-01 | 广东欧珀移动通信有限公司 | Face state monitoring method and device |
| CN209044199U (en) * | 2018-05-09 | 2019-06-28 | 深圳阜时科技有限公司 | A kind of light source module group, image acquiring device, identity recognition device and electronic equipment |
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| US11287734B2 (en) * | 2019-11-20 | 2022-03-29 | Triple Win Technology (Shenzhen) Co. Ltd. | Light projection device and electronic device using same |
| CN113050067A (en) * | 2021-02-26 | 2021-06-29 | 嘉兴驭光光电科技有限公司 | Laser projection module |
| WO2022179346A1 (en) * | 2021-02-26 | 2022-09-01 | 嘉兴驭光光电科技有限公司 | Laser projection module |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019213861A1 (en) | 2019-11-14 |
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Application publication date: 20181026 |
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