CN108227109A - Optical drive mechanism - Google Patents
Optical drive mechanism Download PDFInfo
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- CN108227109A CN108227109A CN201711020082.6A CN201711020082A CN108227109A CN 108227109 A CN108227109 A CN 108227109A CN 201711020082 A CN201711020082 A CN 201711020082A CN 108227109 A CN108227109 A CN 108227109A
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- Prior art keywords
- drive mechanism
- coil
- movable part
- optical drive
- sensing component
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- 230000003287 optical effect Effects 0.000 title claims abstract description 74
- 230000007246 mechanism Effects 0.000 title claims abstract description 52
- 239000007787 solid Substances 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 5
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 230000005389 magnetism Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 11
- 235000014676 Phragmites communis Nutrition 0.000 description 9
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 230000004907 flux Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000008278 dynamic mechanism Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
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- 238000012360 testing method Methods 0.000 description 1
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/09—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted for automatic focusing or varying magnification
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- 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
- G03B13/36—Autofocus systems
-
- 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
- G03B5/00—Adjustment of optical system relative to image or object surface other than for focusing
Abstract
The present invention provides a kind of optical drive mechanism, is set in an electronic device.Optical drive mechanism mainly includes a movable part, a fixed part and a sensing component.Aforementioned active portion has a load-bearing part, to carry an optical module.Aforementioned fixed part is fixed in electronic device and movable part connecting, wherein movable part can be moved by applying a magnetic force relative to fixed part.Aforementioned sensing component has a coil and a magnet assembly, to sense the relative position that movable part is moved relative to fixed part.
Description
Technical field
The present invention relates to a kind of optical drive mechanism more particularly to it is a kind of by coil and magnet assembly to sense movable part
With the optical drive mechanism of the relative position of fixed part.
Background technology
With the development of science and technology, many electronic devices (such as tablet computer or intelligent mobile phone) move towards miniaturization, and
Have the function of to take a picture equipped with camera lens module or record a video.It, may when user uses the electronic device equipped with camera lens module
There is the situation of shaking, obscured so that the image captured by camera lens module generates.Now, people are for high quality image
And the requirement of electronic product easy to carry is increasingly prosperous, makes the electronics for having the camera lens module of excellent shockproof function and miniaturization
Product is increasingly important.
Invention content
It is a primary object of the present invention to provide a kind of optical drive mechanism, to solve above-mentioned technical problem.
The present invention provides a kind of optical drive mechanism, is set in an electronic device.Optical drive mechanism mainly includes one
Movable part, a fixed part and a sensing component.Aforementioned active portion has a load-bearing part, to carry an optical module.It is aforementioned solid
Determine that portion is fixed in electronic device and movable part connecting, wherein movable part can be moved by applying a magnetic force relative to fixed part
It is dynamic.Aforementioned sensing component has a coil and a magnet assembly, to sense the relative position of movable part and fixed part.
In an embodiment, by apply the alternating current of a fixed frequency to aforementioned sensing component with sense movable part with it is solid
Determine the relative position in portion.
In an embodiment, moved by measuring the variation of inductance value of aforementioned coil with sensing movable part relative to fixed part
Dynamic relative position.
In an embodiment, the direction of winding of aforementioned coil is parallel to the pole orientation of the magnet assembly.
In an embodiment, aforementioned sensing component is driving movable part to be moved relative to fixed part.
In an embodiment, when a direct current applies to aforementioned sensing component, sensing component drives movable part relative to solid
Determine portion's movement, and when the alternating current of a fixed frequency applies to sensing component, sensing component is sensing movable part and fixed part
Relative position.
In an embodiment, aforementioned optical driving mechanism further includes a drive component, to drive movable part relative to solid
Determine portion's movement.
In an embodiment, aforementioned sensing component has multiple magnet assemblies, corresponding aforementioned coil.
In an embodiment, aforementioned magnet assembly has multiple magnetic poles.
In an embodiment, aforementioned sensing component has multiple coils, corresponding aforementioned magnet assembly.
In an embodiment, aforesaid plurality of coil is respectively around one first central shaft and one second central shaft, and first, the
Two central shafts are not parallel.
The beneficial effects of the present invention are the present invention provides a kind of optical drive mechanism, is set in an electronic device.Light
It learns driving mechanism and mainly includes a movable part, a fixed part and a sensing component.Wherein, movable part has a load-bearing part, to
Carry an optical module, fixed part is fixed in electronic device and movable part connecting, and movable part can by apply a magnetic force and
It is moved relative to fixed part.Sensing component then has a coil and a magnet assembly, to sense movable part relative to fixed part
Mobile relative position.Thus, be used as the relative position of sensing movable part and fixed part by coil and magnet assembly
Sensing component can be saved and set additional sensing component and the overall volume of optical drive mechanism be enable to reduce, and coil with
The setting of magnet assembly can be no longer influenced by additional sensing component limitation and be reduced the situation that magnetic thrust is caused to decline, this
Outside, integrated circuit structure can be simplified and reduces the electromagnetic interference between each component and simplify production process with reducing manufacture
Cost.
Description of the drawings
Fig. 1 is the explosive view of the optical drive mechanism of one embodiment of the invention.
Fig. 2 is the schematic diagram (omitting shell 50) of the optical drive mechanism combination in Fig. 1.
Fig. 3 is a coil at different frequencies and positioned at an initial position and the schematic diagram of the inductance value of a commitment positions.
Fig. 4 A are the schematic diagram of coil C1, C2 and magnet assembly M1, M2 configuration in Fig. 1.
Fig. 4 B-4C are the schematic diagram that coil C1 is moved to a commitment positions relative to magnet assembly M1 from an initial position.
Fig. 5 is that the magnet assembly of another embodiment of the present invention corresponds to the schematic diagram of coil.
Fig. 6 is that the magnet assembly of another embodiment of the present invention corresponds to the schematic diagram of coil.
Fig. 7 is the schematic diagram of the optical drive mechanism of another embodiment of the present invention.
Fig. 8 is the schematic diagram (omitting shell 50) of the optical drive mechanism combination in Fig. 7.
Fig. 9 be omit shell in Fig. 8, bottom plate and frame optical drive mechanism side view.
Reference numeral is as follows：
1st, 2~optical drive mechanism；
10~pedestal, bottom plate；
20~frame；
30~load-bearing part；
50~shell；
70~upper reed plate；
80~lower reed；
A~region；
C1, C2, C3~coil；
E~elastic component；
F~fixed part；
I~in the coil inductance of initial position；
M1, M2, M3~magnet assembly；
O~optical axis；
P~in the coil inductance of commitment positions；
The central shaft of Q1, Q2~first, second；
S~sensing component；
V~movable part.
Specific embodiment
Illustrate the optical drive mechanism of the embodiment of the present invention below.However, it can will readily appreciate that offer of the embodiment of the present invention is permitted
More suitable concept of the invention and may be implemented in wide variety of specific background.Revealed specific embodiment be merely illustrative with
Ad hoc approach is using the present invention, not limiting to the scope of the present invention.
Unless otherwise defined, whole terms (including technology and scientific words) as used herein have discloses ability with this piece
The normally understood identical connotation of field technique personnel institute.It is appreciated that these terms, such as defined in usually used dictionary
Term, should be interpreted to have a meaning consistent with the background or context of the relevant technologies and the disclosure, without Ying Yiyi
Idealization or excessively formal mode are understood, unless especially definition herein.In addition, attached drawing or specification description in, it is similar or
Identical part uses identical symbol.
Fig. 1 is the explosive view of the optical drive mechanism 1 of one embodiment of the invention.Aforementioned optical driving mechanism 1 can for example be set
The inside of the electronic devices such as a camera, tablet computer or mobile phone is placed in, and can be used to one optical module of carrying (is, for example, optics
Camera lens, non-icon), and optical lens can be made to be moved relative to the photosensory assembly in electronic device, to reach auto-focusing
The purpose of (Auto-Focusing, AF) or optical anti-shake (Optical Image Stabilization, OIS), thus carries
Rise the quality of image.
As shown in Figure 1, optical drive mechanism 1 mainly includes a shell 50, a frame 20, a fixed part F, a movable part V
With a sensing component S.Wherein, fixed part F is integrally fixed in an electronic device, and has a pedestal 10, and aforesaid frame 20 is then solid
It is scheduled on pedestal 10, and pedestal 10, frame 20, movable part V and sensing component S are to be located in shell 50 and be protected by it.It is aforementioned
Movable part V includes a load-bearing part 30, can carry an optical lens, by photosensory assembly (non-icon) in electronic device receive come
From light (from the optical axis O directions of optical lens) extraneous and across optical lens, image can be obtained.
Also referring to Fig. 1~Fig. 2, the schematic diagram after the combination of optical drive mechanism 1 that wherein Fig. 2 is Fig. 1 (omits shell
50).Aforesaid frame 20 is set on the pedestal 10 of fixed part F.The load-bearing part 30 of movable part V is set on pedestal 10, and pass through
One first reed 70 of optical drive mechanism 1 and one second reed, 80 (being, for example, springs) difference connect base 10 and frame
20 so that movable part V is the connecting portion F in a manner of actively.Sensing component S is then configured in the outside of load-bearing part 30, and can
On load-bearing part 30 on the first reed 70.It will be detailed below sensing component S.
As shown in Fig. 2, sensing component S includes multiple coil C1, C2 and mutual corresponding multiple magnet assemblies (such as magnetic
Iron) M1, M2, it is separately positioned on the side of load-bearing part 30 and the lower surface of the first reed 70.Aforementioned coil C1, C2, which can be received, to be passed through
The signal (such as electric current to drive) that one external power supply (not being painted) is applied, thus can be between magnet assembly M1, M2
Generate magnetic force so that sensing component S can drive load-bearing part 30 (movable part V) together with the optical lens being located therein to be relatively fixed
Portion F is mobile along the optical axis O directions (Z axis) of optical lens, and then reaches automatic focusing function or have rolling movable property in optical lens
When raw, good compensation effect can be obtained by aforementioned mobile mechanism, to reach the purpose of anti-hand shake.In addition, it is driven applying
Signal before, first, second reed 70,80 can allow load-bearing part 30 to be relatively fixed portion F and be maintained at an initial position.
In this present embodiment, coil C1, C2 can be electrically connected by multiple conducting wires and coil C1, C2 are connected to load-bearing part
30.In addition, other multiple conducting wires (not being painted) can be with insert molding (Insert Molding) or with three dimensional mold interconnection pair
As the mode of (3D Molded Interconnect Device) technology is formed in bottom plate 10, frame 20 on load-bearing part 30, making
Sensing component S can be electrically connected to (comprising coil C1, C2 and magnet assembly M1, M2) by these conducting wires an external power supply with
Drive signal is received, so that movable part V is relatively fixed portion F movements.Since aforementioned wire is mutual with insert molding or three dimensional mold
The mode of connection object technology is formed on bottom plate 10, therefore can reduce the entirety for setting additional conducting wire and making optical drive mechanism 1
Number of components reduces, and substantially reduces its volume.
It is worth noting that, aforementioned sensing component S is also sensing movable part V (load-bearing part 30) relative to fixed part F (bases
The displaced posi of seat 10).Specifically, coil C1, C2 in optical drive mechanism 1 are that have an inductance value
(inductance value), and this inductance value can be with the power frequency (such as being applied by external power supply) inputted to it
Different and magnetic field is changed by the magnetic flux (magnetic flux) of coil.As shown in figure 3, horizontal axis is is input to coil
Power frequency, the longitudinal axis be coil inductance value, can be observed when input power frequency (may be, for example, line in a specific frequency
The parasitic capacitance value of circle starts to be changed between humorous resonant frequency) under range (the region A in such as figure) and when coil with it is magnetic
(coil has relative movement with magnet assembly, and being moved to one from an initial position had both positioned during the relative position difference of component
Put), the inductance value of coil generates significant change (initial, commitment positions inductance values I, P in such as figure).Thus, pass through
The electric current (such as electric current of alternating current) for inputting a fixed frequency senses coil and magnetic via the variable quantity of the inductance value of coil
Property component relative position relation, thus judge both relative position.It can so save and other are set in optical drive mechanism 1
Position sensing component, with reach miniaturization.
Fig. 4 A are the schematic diagram of the configuration of aforementioned coil C1, C2 and magnet assembly M1, M2, and Fig. 4 B- Fig. 4 C are then with Fig. 4 A's
Coil C1 is explained with magnet assembly M1, and one is moved to from an initial position (Fig. 4 B) relative to magnet assembly M1 for coil C1
Commitment positions (Fig. 4 C).
When coil C1 applies it in signal (such as electric current of direct current) of driving by an external power supply, coil C1 with
Magnetic force is generated between magnet assembly M1 and has relative movement, at this point, can generate change by the magnetic flux of coil C1 so that coil
The inductance value of C1 also changes correspondingly, this inductance value is measured by (such as passing through an integrated circuit (integrated circuit))
Variation it can be seen that the relative position of coil C1 and magnet assembly M1 at present, thus, you can sense movable part V (coils
C1 is set on the load bearing member 30) it is moved relative to fixed part F (magnet assembly M1 is located on frame 20, and frame 20 is fixed with pedestal 10)
Dynamic relative position, to allow optical drive mechanism 1 that there is excellent auto-focusing or sway compensating.And in the another of load-bearing part 30
Lateral coil C2 and magnet assembly M2 also can change the magnetic flux by coil C2 by mobile, its inductance value is made to generate variation
And it is measured, to sense the two relative position.In other words, driving current is inputted to coil C1 (or C2) by external power supply
(direct current) and sensing electric current (alternating current), with reach by coil can perform driving movable part V and sensing movable part V relative to
The purpose of the position of fixed part F.In an embodiment, external power supply can be to coil C1 (or C2) while to input driving current (straight
Galvanic electricity) and sensing electric current (alternating current).
In the present embodiment, setting is parallel to coil corresponding to the pole orientation of magnet assembly M1, M2 of coil C1, C2
Direction of winding.Specifically, Fig. 4 A, Fig. 4 B are please referred to, coil C1, C2 are around one first central shaft Q1, and its coiling side
To the first central shaft Q1 is parallel to, the pole orientation of magnet assembly M1, M2 are then also parallel to the first central shaft Q1.Thus,
By aforementioned configuration, it can allow and be improved by the magnetic flux of coil C1, C2 so that coil C1, C2 are relative to magnet assembly M1, M2
The magnetic flux change for (being moved to commitment positions from initial position) during relative movement becomes apparent from, so promoted judge fixed part F and
The accuracy of the relative movement of movable part V.In addition, in this present embodiment, aforementioned first central shaft Q1 is generally parallel to optical axis
O。
In another embodiment, aforementioned coil C1 (or C2) can correspond to multiple magnet assembly M1 (or M2).As shown in figure 5,
Two magnet assembly M1 correspond to coil C1 in a manner of (Z axis) to be arranged above and below, wherein both pole orientation on the contrary, and having one
Gap is formed between two magnet assembly M1.In a manner that a coil corresponds to multiple magnet assemblies, sensing component S can be promoted
Movable part V is driven relative to the magnetic thrust of fixed part F and improves sensing precision.In another embodiment, aforementioned coil C1 is corresponded to
One has the magnet assembly M1 of multiple a magnetic poles (such as four magnetic poles), as shown in fig. 6, also can reach similar effect.
In an embodiment, aforementioned coil C1, C2 are mutually electrically independent, and indivedual drivings can be applied independently in external power supply
Signal is to preceding coil C1, C2.When optical drive mechanism 1 is by foreign impacts or shock, external power supply can input difference respectively
Driving current (such as current value size also different) to coil C1, C2 so that the two generates the displacement of different distance, and then band
Dynamic movable part V is rotated (relative to fixed part F), to reach the effect of correction for inclined, in addition, can via be input to coil C1,
The sensing electric current of C2 senses respective location, to calculate angle of inclination, promotes control and compensation precision.In another embodiment,
There are four coils for configuration on aforementioned active portion V, for example, can be set around the mode of the load-bearing part 30 of movable part V, and
Electric current can be applied independently to multiple coils in external power supply, by applying appropriate separate current, so that movable part V can be into
Row relative to fixed part F along the moving of optical axis O directions, relative to fixed part F in the translation perpendicular to the direction of optical axis O and phase
For the inclined rotations of fixed part F.
It should be noted that in another embodiment, it can be by coil C1, C2 and magnet assembly M1, M2 in sensing component S
It redefines：Coil C1, magnet assembly M1 are defined as sensing the relative position that movable part V moves relative to fixed part F
A sensing component, and coil C2, magnet assembly M2 are defined as the drivings moved relative to fixed part F of driving movable part V
Component.
Fig. 7-Fig. 8 is the schematic diagram of the optical drive mechanism 2 of another embodiment of the present invention.Optical drive mechanism 2 mainly wraps
Include a shell 50, a frame 20, a fixed part F, a movable part V and a sensing component S.Wherein, fixed part F includes a bottom plate
10, and bottom plate 10 is affixed in an electronic device, shell 50 is then set on bottom plate 10 and can be used to protection movable part V and fixation
Portion F.Then a load-bearing part 30, wherein load-bearing part 30 are movably connected with frame 20 to aforementioned active portion V by a upper and lower reed 70,80,
And an optical lens can be carried, it is received by the photosensory assembly (such as may be provided on bottom plate 10, not shown) in electronic device
From light extraneous and across optical lens, image can be obtained.Multiple elastic component E (such as having the suspension ring line of elasticity) connections
The bottom plate 10 of fixed part F and upper reed plate 70, allow movable part V to be movably connected with fixed part F.
Aforementioned sensing component S then comprising be arranged above and below each two of (Z axis) and positioned at homonymy magnet assembly M1, M2 (in
Also magnet assembly M1, a M2 can be only included in another embodiment) and two magnet assembly M3 that not homonymy is set, and these
Magnet assembly is around load-bearing part 30.Sensing component S also includes coil C1, C2, C3 of corresponding magnet assembly M1, M2, M3, wherein
Coil C3 is, for example, a plate coil, and is fixed on bottom plate 10.It is worth noting that, coil C1, C2 are in one first
Mandrel Q1 (is parallel to its direction of winding), and for coil C3 then around one second central shaft Q2 (being parallel to its direction of winding), the two is mutual
Not parallel, in the present embodiment, first, second central shaft Q1, Q2 is substantially vertical.
Optical drive mechanism 2 and a main difference of aforementioned optical driving mechanism 1 (Fig. 1-Fig. 2) are：Optical drive machine
The sensing component S of structure 2 not only comprising coil C1, C2, also comprising the coil C3 being set to below magnet assembly M1, M2, M3, passes through
The signal for applying driving gives coil C3, it is made to generate magnetic force with magnet assembly M1, M2, M3, and then drive movable part V (load-bearing parts
30) it is being moved in the plane of optical axis O (X/Y plane) relative to fixed part F or is tilting (i.e. movable part relative to fixed part F
V is rotated).Allow movable part V that can move or turn on multiple and different directions relative to fixed part F so that optical drive mechanism 2 has
Dynamic mechanism makes it have good optics sway compensating.
Fig. 9 is the side view of optical drive mechanism 2, wherein omitting shell 50, bottom plate 10 with frame 20 to clearly show that
The configuration of each coil and magnet assembly.In this present embodiment, can activity be sensed by coil C3 and magnet assembly M1, M2, M3
Portion V is relatively fixed the relative position of portion F movements.It is similar to the coil C1 and magnet assembly M1 of previous embodiment (Fig. 4 B- Fig. 4 C)
Sensing mode, the inductance value variable quantity of throughput test coil C3 is (when coil C3 and magnet assembly M3 (and/or M1, M2) has phase
Its inductance value is made to generate variation to displacement), and its relative position with magnet assembly M3 (and/or M1, M2) is sensed, thus
Judge the relative position of movable part V and fixed part F.
Furthermore it is noted that in this present embodiment, the magnet assembly M1 (or M2) positioned at downside can be corresponded to and is located at
The coil C1 (or C2) of its side and coil C3 being disposed below, in other words, positioned at downside magnet assembly M1 (or
M2 it can be) a shared magnet assembly (i.e. a magnet assembly corresponds to multiple coils), can so be not required to set additional magnetic again
Property component, to reduce the overall volume of optical drive mechanism 2, allows product being capable of microminiaturization to correspond to coil C3.
In conclusion the present invention provides a kind of optical drive mechanism, it is set in an electronic device.Optical drive mechanism master
To include a movable part, a fixed part and a sensing component.Wherein, movable part has a load-bearing part, to carry an optics group
Part, fixed part is fixed in electronic device and movable part connecting, and movable part can be by applying a magnetic force and relative to fixed part
It is mobile.Sensing component then has a coil and a magnet assembly, to sense the opposite position that movable part is moved relative to fixed part
It puts.Thus, be used as the sensing component of the relative position of sensing movable part and fixed part by coil and magnet assembly, can save
It saves and additional sensing component is set and the overall volume of optical drive mechanism is enable to reduce, and the setting of coil and magnet assembly
Additional sensing component limitation can be no longer influenced by and reduced the situation that magnetic thrust is caused to decline, in addition, whole electricity can be simplified
Line structure and reduce the electromagnetic interference between each component and simplify production process with reduce manufacture cost.
Ordinal number in this description and in the claims, such as " first ", " second " etc., each other not
Precedence relationship sequentially is only used for mark and distinguishes two different components with same name.
The above embodiments enable those skilled in the art to implement this hair by the description above with enough details narrations
Bright disclosed device and it will be appreciated that in the spirit and scope for not departing from the present invention, when a little change can be done
With retouching, therefore protection scope of the present invention is subject to the range that be defined depending on appended claims.
Claims (11)
1. a kind of optical drive mechanism is set in an electronic device, including：
One movable part has a load-bearing part, to carry an optical module；
One fixed part is fixed in the electronic device and connects the movable part, wherein the movable part can by apply a magnetic force and
It is moved relative to the fixed part；And
One sensing component has a coil and a magnet assembly, to sense the relative position of the movable part and the fixed part.
2. optical drive mechanism as described in claim 1, wherein by applying the alternating current of a fixed frequency to the sensing group
Part is to sense the relative position of the movable part and the fixed part.
3. optical drive mechanism as claimed in claim 2, wherein the variation of the inductance value by measuring the coil is to sense this
The relative position that movable part is moved relative to the fixed part.
4. the direction of winding of optical drive mechanism as described in claim 1, the wherein coil is parallel to the magnetic of the magnet assembly
Extreme direction.
5. optical drive mechanism as described in claim 1, the wherein sensing component are driving the movable part solid relative to this
Determine portion's movement.
6. optical drive mechanism as claimed in claim 5, wherein when a direct current applies to the sensing component, the sensing component
The movable part is driven to be moved relative to the fixed part, and the alternating current for working as a fixed frequency applies to the sensing component, the sensing
Component is sensing the relative position of the movable part and the fixed part.
7. optical drive mechanism as described in claim 1 further includes a drive component, to drive the movable part relative to this
Fixed part moves.
8. optical drive mechanism as described in claim 1, the wherein sensing component have multiple magnet assemblies, the corresponding line
Circle.
9. optical drive mechanism as described in claim 1, the wherein magnet assembly have multiple magnetic poles.
10. optical drive mechanism as described in claim 1, the wherein sensing component have multiple coils, the corresponding magnetism group
Part.
11. optical drive mechanism as claimed in claim 10, the plurality of coil respectively around one first central shaft with
One second central shaft, and first, second central shaft is not parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US15/840,288 US11070152B2 (en) | 2016-12-21 | 2017-12-13 | Optical driving mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201662437247P | 2016-12-21 | 2016-12-21 | |
| US62/437,247 | 2016-12-21 |
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| CN108227109A true CN108227109A (en) | 2018-06-29 |
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| CN201711020082.6A Pending CN108227109A (en) | 2016-12-21 | 2017-10-27 | Optical drive mechanism |
| CN201721399402.9U Active CN207408653U (en) | 2016-12-21 | 2017-10-27 | Optical drive mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110784625A (en) * | 2018-07-25 | 2020-02-11 | 台湾东电化股份有限公司 | Driving mechanism of photosensitive assembly |
| CN111522118A (en) * | 2019-02-01 | 2020-08-11 | 台湾东电化股份有限公司 | Driving mechanism |
| CN112711116A (en) * | 2019-10-09 | 2021-04-27 | 台湾东电化股份有限公司 | Tactile feedback mechanism and optical element drive mechanism |
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| TW202003277A (en) | 2018-05-31 | 2020-01-16 | 宏碁股份有限公司 | Electronic device |
| CN110764570B (en) * | 2018-07-26 | 2024-01-16 | 宏碁股份有限公司 | electronic device |
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| CN110784625A (en) * | 2018-07-25 | 2020-02-11 | 台湾东电化股份有限公司 | Driving mechanism of photosensitive assembly |
| CN110784625B (en) * | 2018-07-25 | 2022-04-15 | 台湾东电化股份有限公司 | Driving mechanism of photosensitive assembly |
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| CN111522118B (en) * | 2019-02-01 | 2023-08-18 | 台湾东电化股份有限公司 | Driving mechanism |
| CN112711116A (en) * | 2019-10-09 | 2021-04-27 | 台湾东电化股份有限公司 | Tactile feedback mechanism and optical element drive mechanism |
| CN112711116B (en) * | 2019-10-09 | 2023-09-19 | 台湾东电化股份有限公司 | Haptic feedback mechanism and optical element driving mechanism |
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