CN208174825U - A kind of lens module, image acquiring device, identity recognition device and electronic equipment - Google Patents
A kind of lens module, image acquiring device, identity recognition device and electronic equipment Download PDFInfo
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- CN208174825U CN208174825U CN201820686047.1U CN201820686047U CN208174825U CN 208174825 U CN208174825 U CN 208174825U CN 201820686047 U CN201820686047 U CN 201820686047U CN 208174825 U CN208174825 U CN 208174825U
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- reflecting mirror
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- imaging lens
- lens
- light
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Abstract
The utility model is suitable for optical technical field, provides a kind of lens module comprising imaging lens, the first reflecting mirror and the second reflecting mirror.The light that the imaging lens are reflected object is assembled.First reflecting mirror and second reflecting mirror are parallel to each other, and the image side of the imaging lens is arranged in both with respect to the inclined light shaft of the imaging lens.The light projected from the imaging lens is reflexed to second reflecting mirror by first reflecting mirror.New focal point of the light focusing that second reflecting mirror is reflected first reflecting mirror in the imaging lens image side.The new focus is less than the focal length of the imaging lens itself between the imaging lens at a distance from optical axis direction.The utility model also provides a kind of image acquiring device, identity recognition device and electronic equipment using the lens module.The utility model effectively shortens lens module along the length of optical axis direction, reduces the volume of lens module.
Description
Technical field
The utility model belongs to optical technical field more particularly to a kind of lens module, image acquiring device, identification
Device and electronic equipment.
Background technique
As people are to the miniaturization of electronic product and the craving of portability, the volume for how reducing lens module becomes urgently
Technical problem to be solved.As shown in Figure 1, existing lens module 100 is in imaging, it is necessary to the light for being reflected object
It is assembled, being gathered on the imaging surface 101 at the rear original focal F1 of imaging lens 101 could blur-free imaging.That is,
After the completion of optical design inside lens module, the position of original focal F1 is just fixed and invariable, and leads to lens module
It is difficult to shorten along the length of its optical axis direction, so that the volume of lens module is difficult to reduce, to the miniaturization of lens module
Bring very big difficulty.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of lens module, image acquiring device, identity to know
Other device and electronic equipment, it is intended to can be realized miniaturization.
The utility model is realized in this way a kind of lens module comprising imaging lens, the first reflecting mirror and second are anti-
Penetrate mirror.The light that the imaging lens are used to be reflected object is assembled.First reflecting mirror and the second reflecting mirror phase
Mutually in parallel, and both with respect to the inclined light shaft of the imaging lens image side of the imaging lens is set.First reflecting mirror is used for
The light projected from the imaging lens is reflexed into second reflecting mirror.Second reflecting mirror is used for first reflecting mirror institute is anti-
New focal point of the light focusing penetrated in the imaging lens image side.Between the new focus and the imaging lens along optical axis direction away from
From the focal length for being less than the imaging lens itself.
The utility model additionally provides a kind of image acquiring device comprising imaging sensor and above-mentioned lens module.It should
The light focusing that lens module is used to be reflected object is in the imaging sensor.The imaging sensor is for will be received
The light of object be converted into electric signal, to obtain the image of object.
The utility model additionally provides a kind of identity recognition device comprising identification mould group and above-mentioned image acquiring device,
The image acquiring device is used to obtain the image of the object.The identification mould group is used for according to acquired in the image acquiring device
Image carries out identification.
The utility model additionally provides a kind of electronic equipment comprising the identification dress described in any one of above-mentioned
It sets, the electronic equipment is for corresponding to whether execute corresponding function according to the recognition result of the identity recognition device.
Compared with prior art, beneficial effect is the utility model：The lens module of the utility model, image obtain dress
It sets, identity recognition device and electronic equipment, by the first reflecting mirror of setting and the second reflecting mirror, the light that imaging lens are assembled
The optical path of line is bent, to focus on the position F2 relative to original focal F1 closer to imaging lens, to effectively shorten
Lens module reduces the volume of lens module along the length of optical axis direction, realizes miniaturization.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the lens module that the prior art provides.
Fig. 2 is the structural schematic diagram for the lens module that the utility model first embodiment provides.
Fig. 3 is the structural schematic diagram for the image acquiring device that the utility model second embodiment provides.
Fig. 4 is the structural schematic diagram for the identity recognition device that the utility model 3rd embodiment provides.
Fig. 5 is the structural schematic diagram for the electronic equipment that the utility model fourth embodiment provides.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
As shown in Fig. 2, a kind of lens module 200 provided by the utility model first embodiment comprising imaging lens
201, the first reflecting mirror 202 and the second reflecting mirror 203.
The light that the imaging lens 201 are used to be reflected object is assembled.The imaging lens 201 include at least one
Lens.In the present embodiment, which is a convex lens.Certainly, lens included by the imaging lens 201
Quantity, type (such as convex lens or concavees lens) and arrangement mode can be according to the demand designed, designeds of user.
First reflecting mirror 202 and second reflecting mirror 203 are parallel to each other, and both with respect to the light of the imaging lens 201
Axis O is inclined at the image side of the imaging lens.First reflecting mirror 202 is used for the light that will be projected from the imaging lens 201
Reflex to second reflecting mirror 203.Second reflecting mirror 203 is for existing the light focusing that first reflecting mirror 202 is reflected
At the new focus F2 of 201 image side of imaging lens.
The reflecting surface of first reflecting mirror 202 faces and parallel to the reflecting surface of second reflecting mirror 203.
Since the light being emitted from the imaging lens 201 passes through first reflecting mirror 202 and second reflecting mirror 203 twice
After reflection, optical path is bent, and is focused again, and therefore, the new focus F2 is relative to original focal F1 closer to this
Imaging lens 201.That is, the new focus F2 between the imaging lens 201 along optical axis direction distance f2 be less than this at
As the focal length f1 of camera lens 201 itself.
Since the position at the rear new focus F2 needs to place imaging sensor (not shown), in order to avoid imaging sensor
Mechanical interference occurs with the first reflecting mirror 202 and the second reflecting mirror 203, it can be by adjusting first, second reflecting mirror
202, the distance between relative positional relationship between 203 and optical axis O and/or first, second reflecting mirror 202,203 etc. are joined
Number, is located at 202,203 side far from the imaging lens 201 of the first, second reflecting mirror to control the new focus F2.Certainly,
Also it can control the new focus F2 between the first, second reflecting mirror 202,203.
In the present embodiment, the reflecting surface of the reflecting surface of first reflecting mirror 202 and second reflecting mirror 203 and optical axis O
Between acute angle be 45 degree.Certainly, first reflecting mirror 202 and the angle of the second reflecting mirror 203 relative to optical axis O
It is not limited to the present embodiment, it can (for example lens module 200 be along the length in the direction optical axis O and perpendicular to optical axis O according to actual needs
The width etc. in direction) it is changed (such as 30 degree etc.).If the angle of first, second reflecting mirror 202,203 and optical axis O are not
Together, will lead to the new focus F2 position (vertical range, new focus F2 and the imaging lens 201 of i.e. new focus F2 and optical axis O it
Between along the direction optical axis O vertical range) change.
As can be seen from FIG. 2, in order to reduce the lens module 200 as far as possible along the length in the direction optical axis O, first reflecting mirror
The distance between 202 and the imaging lens 201 can reduce as far as possible, so as to cause all light being emitted from the imaging lens 201
When reaching first reflecting mirror 202 progress first reflection, it is not high to assemble degree, so that the imaging lens 201 are emitted
Projected area of the light on first reflecting mirror 202 it is larger.And the light of the imaging lens 201 outgoing first is reflected by this
After mirror 202 reflects, during being reflected, the light of the imaging lens 201 outgoing still can be assembled, so that the light
It is smaller than the projected area on first reflecting mirror 202 in the projected area on second reflecting mirror 203, therefore second reflection
The area of the reflecting surface of mirror 203 can be less than the area of the reflecting surface of first reflecting mirror 202.
As shown in figure 3, the utility model second embodiment also provides a kind of image acquiring device 300, it is shot for obtaining
The image of object.The image acquiring device 300 not only includes above-mentioned lens module 200, further includes a light source module group 301, one figures
As sensor 302 and a memory 303.
The light source module group 301 is used to project a light (such as infrared ray etc.) to object.
The light-ray condensing that the lens module 200 is used to be reflected object is in the imaging sensor 302.
The imaging sensor 302 be used for by the light of received object be converted into electric signal, to obtain object
Image.In the present embodiment, the imaging sensor 302 can for charge-coupled device (Charge Coupled Device,
) or complementary metal oxide semiconductor (Complementary Metal Oxide Semiconductor, CMOS) CCD.
The memory 303 is used to store the image of the object acquired in the imaging sensor 302.
In some embodiments, which further comprises processor (not shown), should for basis
The 3D figure for the image export object that imaging sensor 302 obtains.
As shown in figure 4, the utility model 3rd embodiment also provides a kind of identity recognition device 400 comprising above-mentioned figure
As acquisition device 300 and identification mould group 401.
The image acquiring device 300 is used to obtain the image of the object.
The identification mould group 401 carries out identification for the image according to acquired in the image acquiring device 300.
The identity recognition device 400 for example but is not limited to face authentification device.The identity recognition device 400 can also be use
In other suitable positions of identification human body, or the other suitable organisms of identification or inorganic matter.
As shown in figure 5, the utility model fourth embodiment also provides a kind of electronic equipment 500, it is such as, but not limited to
It is produced for the electronics of the suitable types such as consumer electrical product, household formula electronic product, vehicular electronic product, financial terminal product
Product.Wherein, consumer electrical product for example but is not limited to mobile phone, tablet computer, laptop, tabletop display, computer
All-in-one machine etc..Household formula electronic product for example but is not limited to intelligent door lock, TV, refrigerator, wearable device etc..Vehicular electricity
Sub- product for example but is not limited to automatic navigator, vehicle-carrying DVD etc..Financial terminal product for example but is not limited to ATM machine, self-service
The terminal etc. of transacting business.The electronic equipment 500 includes above-mentioned identity recognition device 400.The electronic equipment 500 is according to institute
Whether the identification result for stating identity recognition device 400 executes corresponding function to correspond to.Corresponding function for example but
It is not limited to include unlock, payment, any one or a few in the application program that prestores of starting.
In the present embodiment, it is illustrated so that electronic equipment 500 is mobile phone as an example.What the mobile phone for example, shielded comprehensively
The positive top of mobile phone is for example arranged in mobile phone, the identity recognition device 400.Certainly, the mobile phone is also not restricted to entirely
Face mobile phone.
For example, the screen for lifting mobile phone or touch mobile phone can act as wake-up when user needs to boot up unlock
The effect of the identity recognition device 400.After the identity recognition device 400 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 lens module 200 of the utility model, image acquiring device 300, identity recognition device
400 and electronic equipment 500, by the first reflecting mirror 201 of setting and the second reflecting mirror 202, the light that imaging lens 201 are assembled
The optical path of line is bent, to focus on the position F2 relative to original focal F1 closer to imaging lens 201, to effectively contract
Short lens module 200 along optical axis direction length, and then reduce lens module 200 volume, realize miniaturization.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (14)
1. a kind of lens module comprising imaging lens, the light which is used to be reflected object are assembled,
It is characterized in that, the lens module further includes the first reflecting mirror and the second reflecting mirror, first reflecting mirror and second reflecting mirror
It is parallel to each other, and the image side of the imaging lens is set both with respect to the inclined light shaft of the imaging lens；First reflecting mirror is used
In the light projected from the imaging lens is reflexed to second reflecting mirror；Second reflecting mirror is used for the first reflecting mirror institute
New focal point of the light focusing of reflection in the imaging lens image side；Along optical axis direction between the new focus and the imaging lens
Distance is less than the focal length of the imaging lens itself.
2. lens module as described in claim 1, which is characterized in that the reflecting surface of first reflecting mirror faces and parallel to this
The reflecting surface of second reflecting mirror.
3. lens module as claimed in claim 2, which is characterized in that the reflecting surface of first reflecting mirror and second reflecting mirror
Reflecting surface and the imaging lens optical axis between acute angle be 45 degree.
4. lens module as claimed in claim 2, which is characterized in that the area of the reflecting surface of second reflecting mirror be less than this
The area of the reflecting surface of one reflecting mirror.
5. lens module as described in claim 1, which is characterized in that the new focus is located at first reflecting mirror and this is second anti-
Penetrate side of the mirror far from the imaging lens.
6. a kind of image acquiring device, which is characterized in that it includes imaging sensor and any one of such as the claims 1-5
The lens module, the light focusing which is used to be reflected object is in the imaging sensor；The image
Sensor be used for by the light of received object be converted into electric signal, to obtain the image of object.
7. image acquiring device as claimed in claim 6, which is characterized in that the imaging sensor be charge-coupled device or
Complementary metal oxide semiconductor.
8. image acquiring device as claimed in claim 6, which is characterized in that the image acquiring device further includes memory, should
Memory is used to store the image of the object acquired in the imaging sensor.
9. image acquiring device as claimed in claim 6, which is characterized in that the image acquiring device further includes light source module group,
The light source module group is used to project a light to the object.
10. image acquiring device as claimed in claim 6, which is characterized in that the image acquiring device further comprises processing
Device, the image for being obtained according to the imaging sensor export the 3D figure of the object.
11. a kind of identity recognition device, which is characterized in that it includes identification mould group and such as above-mentioned image as claimed in claim 6
Acquisition device, the image acquiring device are used to obtain the image of the object；The identification mould group is used to be obtained according to the image and fill
It sets acquired image and carries out identification.
12. identity recognition device as claimed in claim 11, which is characterized in that the identity recognition device includes face recognition dress
It sets.
13. a kind of electronic equipment, which is characterized in that including identity recognition device described in any one of claim 11-12,
The electronic equipment is for corresponding to whether execute corresponding function according to the recognition result of the identity recognition device.
14. electronic equipment as claimed in claim 13, it is characterised in that：Corresponding function includes unlock, payment, starting
Any one or a few in the application program prestored.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820686047.1U CN208174825U (en) | 2018-05-09 | 2018-05-09 | A kind of lens module, image acquiring device, identity recognition device and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820686047.1U CN208174825U (en) | 2018-05-09 | 2018-05-09 | A kind of lens module, image acquiring device, identity recognition device and electronic equipment |
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| Publication Number | Publication Date |
|---|---|
| CN208174825U true CN208174825U (en) | 2018-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820686047.1U Active CN208174825U (en) | 2018-05-09 | 2018-05-09 | A kind of lens module, image acquiring device, identity recognition device and electronic equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11796893B2 (en) | 2019-05-05 | 2023-10-24 | Huawei Technologies Co., Ltd. | Compact camera module and terminal device |
-
2018
- 2018-05-09 CN CN201820686047.1U patent/CN208174825U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11796893B2 (en) | 2019-05-05 | 2023-10-24 | Huawei Technologies Co., Ltd. | Compact camera module and terminal device |
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