CN110456591A - A kind of focal length adjustment device and mobile terminal - Google Patents
A kind of focal length adjustment device and mobile terminal Download PDFInfo
- Publication number
- CN110456591A CN110456591A CN201910668735.4A CN201910668735A CN110456591A CN 110456591 A CN110456591 A CN 110456591A CN 201910668735 A CN201910668735 A CN 201910668735A CN 110456591 A CN110456591 A CN 110456591A
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- deformation layer
- installation cavity
- loop coil
- focal length
- adjustment device
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- 238000009434 installation Methods 0.000 claims abstract description 46
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 239000011521 glass Substances 0.000 claims description 13
- 230000006978 adaptation Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000005389 magnetism Effects 0.000 claims 1
- 230000003287 optical effect Effects 0.000 abstract description 13
- 238000004891 communication Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000008859 change Effects 0.000 description 9
- 230000006698 induction Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000012528 membrane Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/02—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the intensity of light
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/32—Means for focusing
- G03B13/34—Power focusing
-
- 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
-
- 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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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
Abstract
The present invention provides a kind of focal length adjustment device and mobile terminals, are related to field of communication technology.Wherein focal length adjustment device includes: the deformation layer and pressure assembly of bracket, light transmission；The inside of the bracket has installation cavity, and the open at both ends setting of the installation cavity；The limit installation of the deformation layer is in the first end of the installation cavity, and the second end of the installation cavity is for installing camera module；Side of the deformation layer far from the first end is connect with the pressure assembly, the pressure assembly exports the pressure on the extending direction of the installation cavity, and the pressure acts on the deformation layer, so that the deformation layer forms concavees lens structure or convex lens structures.This programme provides the pressure along installation cavity extending direction by the pressure assembly being arranged for deformation layer, the pressure can make deformation layer, and deformation occurs, to the first end of installation cavity or the second extreme direction protrusion, convex lens or concavees lens form are formed relative to camera module, to realize optical zoom.
Description
Technical field
The present invention relates to fields of communication technology, in particular to a kind of focal length adjustment device and mobile terminal.
Background technique
With the fast development of smart phone, requirement of the user for performance of taking pictures is higher and higher.The mobile phone of present mainstream
Manufacturer has released containing there are four the mobile phones of camera, it is therefore an objective to by different Shot changes, the focal length of corresponding fixed-focus is obtained,
The photography completed under more scenes uses.
The mode that camera device of mobile phone changes focal length at present is divided into two kinds: optical zoom and Digital Zoom.Digital Zoom is
By the processor built in camera, each elemental area in original picture is increased, reaches subject amplification purpose；Number becomes
The picture of coke amplification can lead to the problem of that pixel is low, and the picture of imaging can be unintelligible compared with the picture of optical zoom.Optical zoom
Be to be completed by changing the focal length of camera lens, need to adjust the position of camera lens, therefore the disadvantage is that need certain space shape, often by
It is formed on mobile phone narrow space；The periscopic camera that part cell phone manufacturer releases is also based on optical zoom principle, by more
Change camera towards position, protrude camera will not very much.Therefore how optical zoom is used on mobile phone, while as far as possible
Camera module the space occupied is reduced, is the difficult point for needing to overcome.
Summary of the invention
To solve the bad technical problem of Digital Zoom effect in the prior art, it is a primary object of the present invention to be provided
A kind of effective control volume, focal length adjustment device and mobile terminal in the way of optical zoom.
In a first aspect, the embodiment of the invention provides a kind of focal length adjustment devices, comprising: bracket, light transmission deformation layer with
And pressure assembly；
The inside of the bracket has installation cavity, and the first end and second end opening setting of the installation cavity；The shape
Change layer is mounted in the installation cavity, and the second end of the installation cavity is for installing camera module, deformation layer position
Between the first end and the camera module；Side of the deformation layer far from the first end and the pressure assembly
Connection, the pressure assembly exports the pressure on the installation cavity extending direction, and the pressure acts on the deformation layer,
So that the deformation layer forms concavees lens structure or convex lens structures.
Further, in a preferred embodiment of the invention, ring is provided between the deformation layer and pressure assembly
The power of shape coil, the pressure assembly acts on the deformation layer by the loop coil.
Further, in a preferred embodiment of the invention, the pressure assembly includes magnetic part；The magnetic part
It is set on side of the loop coil far from the deformation layer, the loop coil is connected with energized structural；
Be powered the loop coil generate magnetic field, by change loop coil current direction so that loop coil with
The magnetic part opposite side is magnetic identical or on the contrary, attraction or repulsion is generated between the magnetic part and the loop coil
Power, to drive the deformation layer opposite with the second direction to first direction or second direction protrusion, the first direction.
Further, in a preferred embodiment of the invention, the side wall of the installation cavity is provided with the first clamping knot
One end of structure, first clamping structure is adapted to the camera module, the other end of first clamping structure with it is described
Deformation layer adaptation；First clamping structure is provided with first step portion along the axial direction of the installation cavity, the loop coil and
The magnetic part is successively assemblied in the first step portion.
Further, in a preferred embodiment of the invention, first clamping structure is used for and the camera
One end of mould group adaptation is provided with avoiding structure, and the avoiding structure is adapted with the shape of camera module.
Further, in a preferred embodiment of the invention, the first end of the installation cavity is provided with limiting section, institute
Deformation layer is stated to be limited between the limiting section and the loop coil.
Further, in a preferred embodiment of the invention, the first end of the installation cavity is provided with protection glass,
The deformation layer has between the protection glass and the loop coil, and between the deformation layer and the protection glass
There is default spacing.
Further, in a preferred embodiment of the invention, the first end of the installation cavity is provided with the second clamping
Structure, the protection glass are limited between second clamping structure and the limiting section.
Second aspect, the present invention provides a kind of mobile terminals, including camera module and coke described in any of the above embodiments
Away from regulating device.
A kind of focal length adjustment device and mobile terminal provided in an embodiment of the present invention, the camera module phase with mobile terminal
Cooperation, realizes the optical zoom of auxiliary；The pressure along installation cavity extending direction is provided for deformation layer by the pressure assembly of setting,
The pressure can make deformation layer, and deformation occurs, to the first end of installation cavity or the second extreme direction protrusion, relative to camera module
Convex lens or concavees lens form are formed, to realize zoom；Due to it is provided in this embodiment be to be applied in the outside of camera module
Add focal length adjustment device to realize optical zoom, do not need the position of moving lens or eyeglass, therefore does not need as camera lens setting
Excessive space length, thus can with suitable control camera module mobile terminal spatial volume.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of embodiment of the present invention
Attached drawing be briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not to be seen as
It is the restriction to range, it for those of ordinary skill in the art, without creative efforts, can be with root
Other relevant attached drawings are obtained according to these attached drawings.
Fig. 1 is the structural schematic diagram for the focal length adjustment device that one embodiment of the invention provides；
Fig. 2 is the focal length adjustment device partial schematic diagram that one embodiment of the invention provides；
Fig. 3 is the explosive view for the focal length adjustment device that one embodiment of the invention provides；
Fig. 4 is the schematic diagram for the pressure assembly that one embodiment of the invention provides；
Fig. 5 is the stress diagram in Fig. 4；
The loop coil current direction schematic diagram that Fig. 6 one embodiment of the invention provides；
Fig. 7 be another embodiment of the present invention provides loop coil current direction schematic diagram.
Appended drawing reference:
1, bracket, the 11, first clamping structure, 111, first step portion, 112, avoiding structure, 12, limiting section, 13, second
Clamping structure, 2, deformation layer, 3, loop coil, 4, pressure assembly, 41, magnetic part, 5, camera module, 6, protection glass.
Specific embodiment
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the application embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not to be seen as
It is the restriction to range, it for those of ordinary skill in the art, without creative efforts, can be with root
Other relevant attached drawings are obtained according to these attached drawings.
As shown in figs. 1-7, one embodiment of the invention provide a kind of focal length adjustment device, comprising: bracket 1, light transmission shape
Change layer 2 and pressure assembly 4；The inside of bracket 1 has installation cavity, and the first end and second end opening setting of installation cavity；Shape
Change layer 2 is mounted in installation cavity, and the circumferential edge of deformation layer 2 limit in installation cavity it is fixed (following embodiments detailed descriptions,
It is limited in stop zone 13), deformation is realized under the drive of its edge stress in the intermediate position of deformation layer 2；The second of installation cavity
End is for installing camera module 5, and deformation layer 2 is between first end and camera module 5；Deformation layer 2 is far from first end
Side is connect with pressure assembly 4, and pressure assembly 4 exports the pressure on installation cavity extending direction, and pressure acts on deformation layer
2, so that deformation layer 2 forms concavees lens structure or convex lens structures.A kind of focal length adjustment device provided in an embodiment of the present invention, with
The camera module 5 of mobile terminal matches, and realizes the optical zoom of auxiliary；Pressure assembly 4 by setting is that deformation layer 2 mentions
For the pressure along installation cavity extending direction, which can make deformation layer 2, and deformation occurs, to the first end or second end of installation cavity
Direction protrusion forms convex lens or concavees lens form relative to camera module 5, to realize zoom；Since the present embodiment mentions
What is supplied is to apply focal length adjustment device in the outside of camera module 5 to realize optical zoom, does not need moving lens or eyeglass
Position, therefore do not need that excessive space length is arranged for camera lens, thus can with suitable control camera module 5 it is mobile eventually
The spatial volume at end.
Wherein, bracket 1 may be configured as the tubular structure with decorative effect；The deformation layer 2 of light transmission can take plastics material
The lens of matter, the lens of resin material meet deformable lens material under external force, alternatively, in the present embodiment
Membrane structure can be used, and in the central filler transparency liquid of membrane structure, so that membrane structure is integrally formed in external force
Lower deformable lens structure；Form according to the difference of 2 Impact direction of deformation layer, deformation can be convex lens or recessed
Mirror realizes the focal length for changing camera lens.
Driving mechanism, such as micromotor can be used in pressure assembly 4, and the side space set along deformation layer 2 is several micro-
The output shaft of type motor, micromotor is connect with the edge of deformation layer 2, starts micromotor, and the output shaft of micromotor moves,
Driving deformation layer 2, deformation occurs along the extending direction of installation cavity.To prevent motor shaft and deformation layer 2 directly contact damaging deformation layer
2, excessive baffle can be set between motor shaft and deformation layer 2, promote the forced area of deformation layer 2, avoid damaging deformation layer 2,
Also capable of more effectively driving deformation layer 2 simultaneously, deformation occurs.
Alternatively, SMA (shape memory alloys, marmem) can be used in pressure assembly 4, in deformation layer 2
A loop-shaped memorial alloy is arranged in circumferential edge, and marmem deforms at the first temperature, drives deformation layer 2 raised, shape
Shape memory alloys restore at the second temperature, deformation layer 2 is driven to restore or indent, the deformation extent control in the present embodiment compared with according to
Rely in material itself.
In one embodiment of the invention, to prevent pressure assembly 4 and deformation layer 2 directly contact damaging deformation layer 2, in deformation layer
Loop coil 3 is provided between 2 and pressure assembly 4, loop coil 3 can use glue Nian Jie with the circumferential edge of deformation layer 2, ring
The movement of shape coil 3 drives deformation layer 2, and deformation occurs.The power of pressure assembly 4 acts on deformation layer 2, toroid by loop coil 3
The forced area of deformation layer 2 can be improved in the setting of circle 3, so that the deformation effects of deformation layer 2 are more preferable, while can also prevent shape
Change layer 2 is damaged.
As shown in Figs. 1-5, in a preferred embodiment of the invention, the pressure assembly 4 taken includes magnetic part 41, wherein
41 side of magnetic part is the pole N, and side is the pole S；Polarity close to the side of loop coil can be set as needed, such as this implementation
The side of close loop coil is the pole S in example；Magnetic part 41 is set on side of the loop coil 3 far from deformation layer 2, this implementation
In example, loop coil 3 is connected with energized structural, and energized structural can be the circuit board being separately provided or loop coil 3 and move
The circuit board communication connection of the setting controller of dynamic terminal, controls loop coil 3 by controller and is powered.Magnetic part 41 can be magnetic
Iron.The loop coil 3 being powered generates magnetic field, by changing the current direction of loop coil 3, so that loop coil 3 and institute
It is magnetic identical or on the contrary, attraction or row are generated between the magnetic part 41 and the loop coil 3 to state 41 opposite side of magnetic part
Repulsion, to drive the deformation layer 2 to first direction or second direction protrusion, the first direction and the second direction phase
Instead.The protrusion direction of deformation layer 2 is different, and the camera lens relative to camera module 5 will form two kinds of forms of convex lens and concavees lens,
When convex lens and concavees lens are superimposed with camera lens, the effect focused is all had for camera lens, to realize camera module 5
Focus adjustment.
Wherein, the size of current of loop coil 3 and direction can be directly controlled by controller, and size of current changes, then
The size of attraction or repulsive force between loop coil 3 and magnetic part 41 can change correspondingly, and then deformation layer 2 is driven to deform
Pressure can also change correspondingly, and realize the deformation degree of adjustment deformation layer 2 to adjust focal length.Current direction changes, then loop coil 3
The direction of produced magnetic induction line changes correspondingly, thus reversing of the loop coil 3 close to 41 side of magnetic part, and then drive shape
Deformation occurs to different directions for change layer 2, realizes the focal length of adjustment camera lens.
Specifically, as shown in fig. 6-7, loop coil 3 can be it is rectangular, by taking the magnetic induction line direction of square coil as an example, I in figure
For current direction, according to Ampere's law (right-hand screw rule), it is straight that energization the magnetic field that generates in electromotion straight wire: is held with the right hand
Conducting wire allows thumb to be directed toward sense of current, then four directions are exactly the circular direction of magnetic induction line.Sentence respectively in this way
The magnetic induction line direction that disconnected 3 four sides of loop coil generate, when loop coil 3 be passed through be alternating current when, can produce magnetic induction line side
To different magnetic field, while the side of close magnetic part 41 can generate the pole N, S of transformation, therefore meeting and fixed magnetic part 41 produce
Life is attracting or repels each other, to drive film of the invention, deformation occurs.
As shown in fig. 6, in the loop coil 3 current direction be it is counterclockwise, the magnetic induction line direction on each side of loop coil 3 is equal
Are as follows: it is the pole N that vertical paper is the pole S, vertical paper outward in figure inwardly, if magnetic part 41 is close to the side of loop coil 3
For the pole S, loop coil 3 and magnetic part 41 are mutually exclusive at this time, and deformation layer 2 carries out camera lens along the direction protrusion far from camera lens burnt
Away from adjusting；As shown in fig. 7, the current direction in loop coil 3 is clockwise, the magnetic induction line direction on each side of loop coil 3
Are as follows: it is the pole S that vertical paper is the pole N, vertical paper outward in figure inwardly, and loop coil 3 and magnetic part 41 are mutual at this time
Attract, deformation layer 2 carries out focus adjustment to camera lens along the direction protrusion by portrait attachment；It is achieved in optical zoom, is realized different
Clear image under focal length.The present invention can make coil and deformation layer 2 by different size or side under the current conditions of variation
To power, to generate the thin film lens of different concave-convex states.After the lens that deformation layer 2 is formed are superimposed with camera, it can obtain
More different focal lengths is obtained, the optical zoom of camera lens is completed, takes clear photograph.
As shown in Figs. 1-2, in one embodiment of the invention, the side wall of installation cavity is provided with the first clamping structure 11, the first card
One end of binding structure 11 is adapted to the camera module 5, and the other end of first clamping structure 11 and the deformation layer 2 are suitable
Match；First clamping structure 11 is provided with first step portion 111, loop coil 3 and the magnetic along the axial direction of the installation cavity
Property part 41 is successively assemblied in the first step portion 111.The integrally-built circumferential edge of loop coil 3 and magnetic part 41 is formed
One step structure being adapted to first step portion 111, enables integrally-built edge to be connected to first step portion 111.
Above-mentioned first step portion 111 can be set to annular, or being provided at circumferentially spaced along installation cavity side wall.
As shown in the figures 1 and 2, in the present embodiment, the first clamping structure 11 is used for the one end being adapted to the camera module 5
It is provided with avoiding structure 112, avoiding structure 112 is adapted with the shape of camera module 5, such as in the present embodiment, cooperation is taken the photograph
As head mould group 5 round camera at, avoiding structure 112 can be provided in round.
As shown in Figure 1, for the limit for realizing deformation layer 2 and loop coil 3, in one embodiment of the invention, the of installation cavity
One end is provided with limiting section 12, and deformation layer 2 is limited between limiting section 12 and loop coil 3.
It is dust-proof in view of deformation layer 2, as shown in Figure 1-3, the first end of installation cavity is provided in one embodiment of the invention
Protection glass 6, for deformation layer 2 between protection glass 6 and loop coil 3, protection glass 6 prevents 2 effective protection of deformation layer
Extraneous dust or water enter the effect for influencing deformation layer 2；And there is default spacing between deformation layer 2 and protection glass 6, it does not influence
Deformation layer 2 realizes protrusion.
In the present embodiment, the first end of installation cavity is provided with the second clamping structure 14, and protection glass 6 is mounted in second
Between clamping structure 14 and limiting section 12, realizes and fix.
Another embodiment of the present invention provides a kind of mobile terminal, including camera module 5 and focal length adjustment device, it is burnt
Light away from the camera lens that should ensure that camera module 5 during each structure setting of regulating device is interference-free, and light can be by anti-
Protecting lens 6, deformation layer 2 and camera lens.
In the description of the present invention, it is to be understood that, term " on ", "lower", "vertical", "horizontal", "top", "bottom",
The orientation or positional relationship of the instructions such as "inner", "outside", " clockwise ", " counterclockwise " is that orientation based on the figure or position are closed
System.It is merely for convenience of description of the present invention and simplification of the description, rather than the equipment of indication or suggestion meaning or element must have
Specific orientation is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
The foregoing is merely the preferred embodiment of the present invention, are not intended to restrict the invention, for this field
For technical staff, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any
Modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of focal length adjustment device characterized by comprising bracket (1), light transmission deformation layer (2) and pressure assembly
(4)；
The inside of the bracket (1) has installation cavity, and the first end and second end opening setting of the installation cavity；The deformation
Layer (2) is mounted in the installation cavity, and the second end of the installation cavity is for installing camera module (5), the deformation
Layer (2) is between the first end and the camera module (5)；Side of the deformation layer (2) far from the first end
It is connect with the pressure assembly (4), the pressure assembly (4) exports the pressure on the extending direction of the installation cavity, and institute
It states pressure and acts on the deformation layer (2), so that the deformation layer (2) forms concavees lens structure or convex lens structures.
2. focal length adjustment device according to claim 1, which is characterized in that the deformation layer (2) and the pressure assembly
(4) it is provided between loop coil (3), the power of the pressure assembly (4) acts on the deformation by the loop coil (3)
Layer (2).
3. focal length adjustment device according to claim 2, which is characterized in that the pressure assembly (4) includes magnetic part
(41)；The magnetic part (41) is set on the side of the loop coil (3) the separate deformation layer (2), the toroid
Circle (3) is connected with energized structural；
The loop coil (3) being powered generates magnetic field, by changing the current direction of loop coil (3), so that loop coil
(3) identical as the magnetic part (41) opposite side magnetism or on the contrary, produced between the magnetic part (41) and the loop coil (3)
Raw attraction or repulsive force, to drive the deformation layer (2) to first direction or second direction protrusion, the first direction and institute
It is opposite to state second direction.
4. focal length adjustment device according to claim 3, which is characterized in that the side wall of the installation cavity is provided with the first card
One end of binding structure (11), first clamping structure (11) is adapted to the camera module (5), first clamping structure
(11) the other end is adapted to the deformation layer (2)；First clamping structure (11) is provided with along the axial direction of the installation cavity
First step portion (111), the loop coil and the magnetic part are successively assemblied in the first step portion (111).
5. focal length adjustment device according to claim 4, which is characterized in that first clamping structure (11) is used for and institute
The one end for stating camera module (5) adaptation is provided with avoiding structure (112), the avoiding structure (112) and camera module (5)
Shape be adapted.
6. focal length adjustment device according to claim 4, which is characterized in that the first end of the installation cavity is provided with limit
Portion (12), the deformation layer (2) are limited between the limiting section (12) and the loop coil (3).
7. focal length adjustment device according to claim 6, which is characterized in that the first end of the installation cavity is provided with protection
Eyeglass (6), the deformation layer (2) is between the protection glass (6) and the loop coil (3), and the deformation layer (2)
There is default spacing between the protection glass (6).
8. focal length adjustment device according to claim 7, which is characterized in that the first end of the installation cavity is provided with second
Clamping structure (14), the protection glass (6) are limited between second clamping structure (14) and the limiting section (12).
9. a kind of mobile terminal, which is characterized in that including camera module (5) and the described in any item focal lengths of claim 1-8
Regulating device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910668735.4A CN110456591A (en) | 2019-07-23 | 2019-07-23 | A kind of focal length adjustment device and mobile terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910668735.4A CN110456591A (en) | 2019-07-23 | 2019-07-23 | A kind of focal length adjustment device and mobile terminal |
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| CN110456591A true CN110456591A (en) | 2019-11-15 |
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| CN201910668735.4A Pending CN110456591A (en) | 2019-07-23 | 2019-07-23 | A kind of focal length adjustment device and mobile terminal |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114138217A (en) * | 2021-10-27 | 2022-03-04 | 珠海格力电器股份有限公司 | Terminal device and image display method |
| CN114910984A (en) * | 2021-02-10 | 2022-08-16 | 宁波舜宇光电信息有限公司 | Lens assembly, optical lens, camera module and continuous zooming method |
| CN114994883A (en) * | 2021-03-01 | 2022-09-02 | 宁波舜宇光电信息有限公司 | Optical lens and camera module |
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| CN114910984A (en) * | 2021-02-10 | 2022-08-16 | 宁波舜宇光电信息有限公司 | Lens assembly, optical lens, camera module and continuous zooming method |
| WO2022170962A1 (en) * | 2021-02-10 | 2022-08-18 | 宁波舜宇光电信息有限公司 | Lens assembly, optical lens, camera module and continuous zooming method |
| CN114910984B (en) * | 2021-02-10 | 2023-12-26 | 宁波舜宇光电信息有限公司 | Lens assembly, optical lens, camera module and continuous zooming method |
| CN114994883A (en) * | 2021-03-01 | 2022-09-02 | 宁波舜宇光电信息有限公司 | Optical lens and camera module |
| WO2022183960A1 (en) * | 2021-03-01 | 2022-09-09 | 宁波舜宇光电信息有限公司 | Optical lens and camera module |
| CN114994883B (en) * | 2021-03-01 | 2023-10-27 | 宁波舜宇光电信息有限公司 | Optical lens and camera module |
| CN114138217A (en) * | 2021-10-27 | 2022-03-04 | 珠海格力电器股份有限公司 | Terminal device and image display method |
| CN114138217B (en) * | 2021-10-27 | 2024-05-31 | 珠海格力电器股份有限公司 | Terminal device and image display method |
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