CN207799306U - Optical system - Google Patents

Optical system Download PDF

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Publication number
CN207799306U
CN207799306U CN201721257237.3U CN201721257237U CN207799306U CN 207799306 U CN207799306 U CN 207799306U CN 201721257237 U CN201721257237 U CN 201721257237U CN 207799306 U CN207799306 U CN 207799306U
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CN
China
Prior art keywords
optical system
pedestal
optical
circuit
circuit board
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Active
Application number
CN201721257237.3U
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Chinese (zh)
Inventor
胡朝彰
黄诗婷
高国峻
聂奕心
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TDK Taiwan Corp
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TDK Taiwan Corp
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    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B13/00Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
    • G03B13/32Means for focusing
    • G03B13/34Power focusing
    • G03B13/36Autofocus systems
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C19/00Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V7/00Measuring gravitational fields or waves; Gravimetric prospecting or detecting
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B5/00Adjustment of optical system relative to image or object surface other than for focusing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50Constructional details
    • H04N23/54Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50Constructional details
    • H04N23/55Optical parts specially adapted for electronic image sensors; Mounting thereof
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/57Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Studio Devices (AREA)
  • Adjustment Of Camera Lenses (AREA)

Abstract

The utility model provides a kind of optical system, including an optical element and a drive module.The drive module includes a fixed part and an electromagnetic drive component.The fixed part has a shell and a circuit unit.The circuit unit is to be connected to the shell, and the circuit unit includes a pedestal and a circuit element.The electromagnetic drive component is disposed in the shell and is electrically connected to the circuit element, which is that the optical element is driven to be moved relative to the pedestal, does not include any position sensing element in the drive module wherein.

Description

Optical system
Technical field
The utility model is related to a kind of optical system and its drive modules, more particularly to one kind not having position sensing element Optical system and its drive module.
Background technology
With the development of science and technology, many electronic devices (such as smart mobile phone) all have the function of taking a picture or making video recording now. By the photographing module being set on electronic device, user can operate electronic device to capture miscellaneous photo.
In general, photographing module includes a position sensor, a control unit and a lens driving unit, and The lens driving unit can be used to that a camera lens is driven to move along an optical axis of camera lens.When photographing module is shaken, position Sensor can detect the displacement of camera lens, and control unit can drive camera lens toward phase according to this Bit andits control lens driving unit Negative direction displacement, to achieve the purpose that anti-hand shakes.However, position sensor can occupy the inner space of photographing module so that be The purpose of micromation and when needing to reduce the thickness of electronic device, the thickness of photographing module can not be into because of the position sensor due to One step is reduced.
Therefore, how to be avoided that position sensor occupies the inner space of photographing module and reduces the thickness of photographing module, It is worth discussion now and the project solved.
Utility model content
In view of this, the utility model proposes a kind of optical systems, to solve the above problem.
The embodiments of the present invention disclose a kind of optical system, including an optical element and a drive module.It should Drive module includes a fixed part and an electromagnetic drive component.The fixed part has a shell and a circuit unit.It should Circuit unit is to be connected to the shell, and the circuit unit includes a pedestal and a circuit element.The electromagnetic drive component is It is set in the shell and is electrically connected to the circuit element, which is to drive the optical element relative to this Pedestal moves, and does not include any position sensing element in the drive module wherein.
In some embodiments, which also includes a sensing unit and a control unit.The sensing unit is It is set to outside the shell, and the sensing unit is to sense the movement of the optical system and export a sensing signal.The control Unit is disposed on outside the shell, which generates a driving current according to a reference data and the sensing signal, and The electromagnetic drive component is to drive the optical element to be moved relative to the pedestal according to the driving current.
In some embodiments, which includes a relationship of the displacement distance and the driving current of the optical element Curve.
In some embodiments, optical element definition has an optical axis direction, and the drive module and the sensing unit edge The optical axis direction is not overlapped when observing.
In some embodiments, which includes multiple first induction coils, which is to set It is placed in pedestal, to drive the optical element to be moved along a first direction, and those first induction coils are in a second direction Equal length, and the first direction is vertical with the second direction.
In some embodiments, which includes multiple second induction coils, which is to set It is placed in pedestal, to drive the optical element to be moved along a second direction, and those second induction coils are in a first direction Equal length.
In some embodiments, which includes also a circuit board, is set on the pedestal, wherein the electromagnetic drive Component includes multiple first induction coils and multiple second induction coils, is set in the circuit board.
In some embodiments, which be embedded in the pedestal in a manner of injection molding in mould.
In some embodiments, which includes also a circuit board, is set on the pedestal, wherein the electromagnetic drive Component includes multiple first induction coils and multiple second induction coils, and those first, second induction coils and the electricity Circuit component is disposed in the circuit board.
In some embodiments, which also includes a first circuit board and a second circuit board, and the electromagnetism Drive component includes multiple first induction coils and multiple second induction coils, and wherein those first, second induction coils are It is set in the first circuit board, and the circuit element is disposed on the second circuit board.
In some embodiments, which includes also a circuit board, is set on the pedestal, and the electromagnetic drive group Part includes multiple first induction coils and multiple second induction coils, and wherein those first, second induction coils are disposed on In the circuit board, and the circuit element is to mold the mode of interconnection object (Molded Interconnect Device, MID) It is formed on the pedestal.
In some embodiments, which is made of with metal material, and wherein the circuit unit also includes an insulating layer, if It is placed on the pedestal, and the circuit element is disposed on the insulating layer.
In some embodiments, which includes a gyroscope, to detect the vibrations of the optical system.
In some embodiments, which includes a gravity sensor, to detect the acceleration of the optical system.
In some embodiments, which also includes an image sensing unit and a control unit.The image sense It surveys unit to be disposed in the shell, and the image sensing unit is to sense the light of the optical element and export an image Sensing signal.The control unit is disposed on outside the shell, and the control unit is according to the image sensing signal and a reference number According to generating a driving current, and the electromagnetic drive component is to drive the optical element to be moved relative to the pedestal according to the driving current It is dynamic.
In conclusion a kind of optical system of the utility model offer and a drive module, can drive an optical element It is moved relative to pedestal.Wherein, there is no the inside that drive module is occupied comprising any position sensing element is empty in drive module Between, therefore the induction coil in drive module can reduce height, so that the thickness of drive module entirety is reduced, and reach The purpose of micromation.
In addition, optical system includes a sensing unit and a control unit, sensing unit can sensing optical system A sensing signal is moved and exports, and control unit generates a driving current according to a reference data and the sensing signal, So that the electromagnetic drive component in drive module drives the optical element to be moved relative to the pedestal according to the driving current, to reach The purpose shaken to anti-hand.
Middle disclosure will be explained below in additional features and benefits in the utility model, and part can be by aftermentioned explanation It has a clear understanding of, or can be learnt via practice by disclosed principle in book.The features and benefits of the utility model can be by rear It states the combination of instrument specifically noted in claims or device and realizes and obtain.The utility model these and other Feature can be become more apparent upon or can be passed through by principle disclosed in the utility model by aftermentioned specification and claims It is learnt by practicing.
Description of the drawings
Fig. 1 is the schematic diagram of the electronic device of one embodiment of the utility model.
Fig. 2 is the explosive view of the optical system of one embodiment of the utility model.
Fig. 3 shows the sectional view of the A-A ' line segments along Fig. 1.
Fig. 4 is the schematic diagram of the first induction coil of one embodiment of the utility model, the second induction coil and pedestal.
Fig. 5 is the schematic diagram of the first induction coil of another embodiment of the utility model, the second induction coil and pedestal.
Fig. 6 is the block diagram of the optical system of one embodiment of the utility model.
Fig. 7 and Fig. 8 is the relational graph of driving current and displacement distance.
Fig. 9 is the explosive view of a drive module of another embodiment of the utility model.
Figure 10 is the explosive view of a drive module of another embodiment of the utility model.
Figure 11 is the schematic diagram of the circuit board and circuit unit of another embodiment of the utility model.
Figure 12 is the schematic diagram of the circuit board and circuit unit of another embodiment of the utility model.
Reference sign:
50 electronic devices
100 optical systems
101 sensing units
1011 gyroscopes
1013 gravity sensors
102 shells
1021 opening in shell
1023 accommodating spaces
103 control units
104 frames
1041 grooves
1043 central openings
105 storage elements
1051 reference datas
106 upper reed plates
107 image sensing units
1071 Image Sensors
108 camera lens load-bearing parts
1081 through holes
109 drive modules
109A drive modules
109B drive modules
110 times reeds
111 circuit units
111A circuit units
111B circuit units
112 pedestals
1121 holes on base
112A pedestals
112B pedestals
114 circuit elements
116 elastic elements
118 circuit boards
120 first circuit boards
122 second circuit boards
124 insulating layers
700 relation curves
800 relation curves
The first induction coils of CL1
The second induction coils of CL2
CLD driving coils
D1, D2 distance
DI driving currents
L1~L4 length
ME magnetic elements
O optical axises
Specific implementation mode
In order to which the purpose of this utility model, feature and advantage can be clearer and more comprehensible, special embodiment below, and coordinate institute Attached drawing elaborates.Wherein, each element in embodiment is configured to purposes of discussion, not new to limit this practicality Type.And the part of drawing reference numeral repeats in embodiment, is the association being not meant as between different embodiments to simplify the explanation Property.The direction term being previously mentioned in following embodiment, such as:Upper and lower, left and right, front or rear etc. are only to refer to attached drawings Direction.Therefore, the direction term used is intended to be illustrative and not intended to limit the utility model.
In addition, the term of relativity, such as " relatively low " or " bottom " and " higher " or " top " may be used in embodiment, To describe relativeness of the element for another element of attached drawing.It is appreciated that, if the device overturning of attached drawing made It turns upside down, then the element described in " relatively low " side will be as in the element of " higher " side.
Here, the term of " about ", " about " is generally represented within the 20% of a given value or range, preferably 10% it It is interior, and be more preferably within 5%.Given quantity is quantity about herein, implies that in the case of no certain illustrated, still may be used The meaning of implicit " about ", " about ".
It is the schematic diagram of an electronic device 50 of one embodiment of the utility model to please refer to Fig.1 to Fig. 3, Fig. 1, and Fig. 2 is this The subelement explosive view of one optical system 100 of one embodiment of utility model, and Fig. 3 shows cuing open for along Fig. 1 A-A ' line segments View.Electronic device 50 can be fixed electronic device or portable electronic devices, a for example, tablet computer or an intelligent hand Machine, and optical system 100 is mountable on electronic device 50, and the function of image capture is executed for user.Such as Fig. 1 and figure Shown in 2, optical system 100 may include a sensing unit 101, a control unit 103, a storage element 105, an image sensing list Member 107 and a drive module 109.Wherein, sensing unit 101 is disposed on outside drive module 109, and to sense optics The movement of system 100 simultaneously exports a sensing signal.Storage element 105 can be that any type of store media (may be, for example, random Access/memory body), to store the data about electronic device 50 or optical system 100.Control unit 103 is disposed on driving Outside module 109, and can according in storage element 105 data and sensing unit 101 export the sensing signal come Control drive module 109.Wherein, as shown in Figure 1, when being watched by Z-direction, drive module 109 is not weighed with sensing unit 101 It is folded.
As shown in Fig. 2, image sensing unit 107 includes an Image Sensor 1071, to export one after receiving light Image sensing signal, and drive module 109 is disposed on image sensing unit 107.In some embodiments, drive module 109 can be the voice coil motor (VCM) for having auto-focusing (AF) function.In this embodiment, the drive module of optical system 100 109 can have auto-focusing (AF) and optical anti-shake (OIS) function.
With continued reference to FIG. 2, Fig. 2 shows drive module 109 in optical system 100 and image sensing unit 107 Explosive view (for the sake of succinct, sensing unit 101, control unit 103 and storage element 105 are not drawn in Fig. 2).Its In, drive module 109 includes a shell 102, a frame 104, a upper reed plate 106, a camera lens load-bearing part 108, a driving coil CLD, two the first induction coil CL1, two the second induction coil CL2, four magnetic element ME, once reeds 110 and one Circuit unit 111.Wherein, circuit unit 111 may include thering is a pedestal 112 and an at least circuit element 114, and the circuit Unit 111 is that can connect shell 102 to constitute a fixed part.Aforementioned shell 102 has a hollow structure, and is formed with thereon One opening in shell 1021 is formed with a holes on base 1121 on pedestal 112, and the center of opening in shell 1021 corresponds to camera lens and holds The optical axis O for the optical element (not shown) that holder 108 is carried, and holes on base 1121 corresponds to be arranged in pedestal The Image Sensor 1071 of 112 lower sections.Shell 102 can have an accommodating space 1023, to accommodating aforesaid frame 104, on Reed 106, driving coil CLD, two the first induction coil CL1, two the second induction coil CL2, is somebody's turn to do at camera lens load-bearing part 108 A little magnetic element ME and lower reed 110.In addition, shell 102 can also house circuit unit 111 and image sensing unit 107. Furthermore those first induction coils CL1, the second induction coil CL2 and magnetic element ME may make up an electromagnetic drive component, electricity Property be connected to circuit element 114 and can drive camera lens load-bearing part 108 relative to pedestal 112 move.First induction coil CL1 and The not limited to of two induction coil CL2 is in this embodiment.It is worth noting that, not including any position in drive module 109 Sensing element.
As shown in Fig. 2, camera lens load-bearing part 108 has a hollow annular structure, and there is pass through aperture 1081, wherein passing through It is configured with corresponding sealed screwed tooth structure (not shown) between perforation 1081 and the optical element, the optical element can be enabled to lock It is fixed in through hole 1081.Furthermore driving coil CLD is can to surround to be set on camera lens load-bearing part 108.In addition, frame 104 has There are multiple grooves 1041 and a central opening 1043.In this embodiment, there are four grooves 1041 for the tool of frame 104, to hold Set aforementioned four magnetic element ME, but the quantity embodiment without being limited thereto of groove 1041 and magnetic element ME.Camera lens load-bearing part 108 It is disposed in central opening 1043 and can be moved relative to frame 104 with aforementioned optical element.More specifically, such as Fig. 3 institutes Show (section that Fig. 3 only indicates drive module 109), camera lens load-bearing part 108 can be connected to by upper reed plate 106 and lower reed 110 Frame 104 and be suspended in central opening 1043.When driving coil CLD is powered, four magnetic element ME meetings and driving coil CLD generates electromagnetic driving force, mobile along optical axis O (Z-direction) relative to frame 104 so as to driving camera lens load-bearing part 108, with into Row auto-focusing (Auto Focusing).
Furthermore as seen from Figure 2, optical system 100 also includes four elastic elements 116, wherein each elasticity member Part 116 all has string configuration, for example, a column or linear structure, but not limited to this.Wherein, each elastic element 116 one end is connection upper reed plate 106, and the other end of elastic element 116 is to be connected to pedestal 112 and be electrically connected at electricity Circuit component 114.It is configured by aforementioned structure, camera lens load-bearing part 108 and its optical element (not shown) carried and frame 104 can by elastic element 116 of four deflections opposite pedestal 112 along the direction displacement for being parallel to X-Y plane.
It please also refer to Fig. 2 to Fig. 4, Fig. 4 is the first induction coil CL1 of one embodiment of the utility model, the second induction The schematic diagram of coil CL2 and pedestal 112.As shown in Figures 2 to 4, the first induction coil CL1 and the second induction coil CL2 is Be set on pedestal 112, and as shown in figure 4, two the first induction coil CL1 in X-direction (second direction) have phase Same length L1, and two the second induction coil CL2 are in length L2 having the same in Y direction (first direction).Wherein, institute It states first direction and is perpendicular to the second direction, and length L1 can be equal to length L2 in this embodiment, but be not limited to This.Such as in other embodiment, length L1 is can be not equal to length L2.
When the CL1 energizations of those first induction coils incude with corresponding magnetic element ME, electromagnetic driving force will produce It drives camera lens load-bearing part 108 mobile along Y direction (first direction) with the optical element, and works as those second induction coils When CL2 energizations incude with corresponding magnetic element ME, electromagnetic drive power drive camera lens load-bearing part 108 and the optics will produce Element is mobile along X-direction (second direction).Therefore, when optical system 100 is shaken, camera lens load-bearing part 108 can be preceding State electromagnetic driving force drive and in being moved on X-Y plane, to reach optical anti-shake (Optical Image Stabilization purpose).
Referring to FIG. 5, Fig. 5 is the first induction coil CL1, the second induction coil CL2 of another embodiment of the utility model And the schematic diagram of pedestal 112.In this embodiment, the first induction coil CL1 and the second induction coil CL2 are disposed on pedestal 112 corner.Wherein, two the first induction coil CL1 length L3 having the same, two the second induction coil CL2 have Identical length L4, and length L3 is can be equal to length L4.The setting of first induction coil CL1 and the second induction coil CL2 Position embodiment without being limited thereto and previous embodiment, depending on installation position can be according to actual demand.
Fig. 6 to Fig. 8 is please referred to, Fig. 6 is the block diagram of the optical system 100 of one embodiment of the utility model, and Fig. 7 and figure 8 be the relational graph of driving current and displacement distance.As shown in fig. 6, the control unit 103 in optical system 100 is electrical respectively It is connected to sensing unit 101, storage element 105, image sensing unit 107 and drive module 109.Wherein, sensing unit 101 It may include a gyroscope 1011 and a gravity sensor 1013, to the vibrations and acceleration of detection optical system 100 respectively It spends and accordingly exports sensing signal to control unit 103.In addition, a reference data 1051 can be stored in storage element 105, It may include multiple data about driving current and displacement distance.Then, control unit 103 can according to the sensing signal with And reference data 1051 generates a driving current DI so that the electromagnetic drive component drives camera lens according to driving current DI Load-bearing part 108 is moved with the optical element relative to pedestal 112.
As shown in fig. 7, relation curve 700 indicates that the drive module 109 drives camera lens load-bearing part 108 and optics member The relationship of displacement distance and driving current when part is moved toward X-direction, relation curve 700 are to may be included in reference number above-mentioned In 1051.For example, when camera lens load-bearing part 108 and the optical element are shaken, control unit 103 can be according to sense Survey the sensing signal that unit 101 exports and learn camera lens load-bearing part 108 it is past-X-direction moves a distance D1, therefore control unit 103, which can provide driving current DI, gives drive module 109 (size of driving current DI is A1 milliamperes at this time), camera lens can be enabled to hold Holder 108 is toward X-direction displacement distance D1, so as to the shaking suffered by compensation camera lens load-bearing part 108.Similarly, the relationship of Fig. 8 Curve 800 indicates the shifting when drive module 109 drives camera lens load-bearing part 108 to be moved toward Y direction with the optical element The relationship of dynamic distance and driving current.Relation curve 800 is may be included in reference data 1051 above-mentioned.For example, when When camera lens load-bearing part 108 is shaken with the optical element, control unit 103 can be according to the sensing of the output of sensing unit 101 Signal and learn camera lens load-bearing part 108 it is past-Y direction move a distance D2 when, control unit 103 can provide driving current at this time DI gives drive module 109 (size of driving current DI is A2 milliamperes at this time), and camera lens load-bearing part 108 can be enabled toward Y direction Displacement distance D2, so as to the shaking suffered by compensation camera lens load-bearing part 108.
Specifically, the utility model not relationship between qualified relation curve 700 and 800.Implement one In example, the slope of relation curve 700 may be same or different from the slope of relation curve 800.Furthermore by the pass in Fig. 7 and Fig. 8 It is curve 700 and 800 it will be evident that camera lens load-bearing part 108 is restricted to the displacement distance of Xmax-Xmin and Ymax-Ymin In range.
In addition, the control unit 103 image sensing signal that can be exported according to Image Sensor 1071 controls camera lens Distance of the load-bearing part 108 along Z-direction relative to pedestal 112.For example, control unit 103 can control drive module 109 with Driving camera lens load-bearing part 108 moves along Z-direction and obtains multiple image sensing signals.Control unit 103 can be according to those shadows As sensing signal judges an optimal images sensing signal and an opposite position, then control unit 103 can control mirror Head load-bearing part 108 is moved to this opposite position, so as to enabling the image of 100 shooting clear of optical system.Control unit 103 into The control method of one step can refer to the TaiWan, China patent No. I 569081 of on 2 1st, 2017 bulletin.
Referring to FIG. 9, Fig. 9 is the explosive view of a drive module 109A of another embodiment of the utility model.In this implementation In example, drive module 109A can further include a circuit board 118, be set on pedestal 112, and aforementioned first induction coil CL1 and the second induction coil CL2 are disposed in circuit board 118.In addition, the circuit element of this embodiment and the embodiment of Fig. 2 114 are embedded in pedestal 112 in a manner of injection molding in mould.Configuration in this way can make drive module 109A in Z The thickness of axis direction is reduced, to reach the purpose of micromation.
In addition, in another embodiment, aforementioned first induction coil CL1, the second induction coil CL2 and circuit element 114 are also designed to be set to jointly in circuit board 118, to be further reduced drive module in the thickness of Z-direction.
Referring to FIG. 10, Figure 10 is the explosive view of a drive module 109B of another embodiment of the utility model.In this reality It applies in example, drive module 109B can further include a first circuit board 120 and a second circuit board 122, wherein the second electricity Road plate 122 can be a flexible PCB (Flexible Printed Circuit, FPC), be set on pedestal 112, and the One circuit board 120 is disposed on second circuit board 122.Aforementioned first induction coil CL1 and the second induction coil CL2 is setting In in first circuit board 120, and circuit element 114 is disposed on second circuit board 122.In addition, this embodiment may include two A driving coil CLD, is set to the two opposite sides of camera lens load-bearing part 108.
It is the circuit board 118 of another embodiment of the utility model and showing for a circuit unit 111A to please refer to Fig.1 1, Figure 11 It is intended to.In this embodiment, circuit board 118 is disposed on the pedestal 112A of circuit unit 111A, and aforementioned first line of induction Circle CL1 and the second induction coil CL2 is disposed in circuit board 118.It is worth noting that, pedestal 112A is plastic cement material system At, and circuit element 114 is formed in the mode for molding interconnection object (Molded Interconnect Device, MID) In on pedestal 112A.Design in this way can be such that pedestal 112A is reduced in the thickness of Z-direction, further reach miniature The purpose of change.
It is the circuit board 118 of another embodiment of the utility model and showing for a circuit unit 111B to please refer to Fig.1 2, Figure 12 It is intended to.It is similar to previous embodiment, in this embodiment, circuit board 118 is disposed on the pedestal 112B of circuit unit 111B, And aforementioned first induction coil CL1 and the second induction coil CL2 are disposed in circuit board 118.It is worth noting that, pedestal 112B is with (such as iron-containing alloy) made by metal material, and pedestal 112B can be with the shell 102 of Fig. 9 with the side of welding Formula combines.Furthermore in this embodiment, circuit unit 111B can also include an insulating layer 124, be set on pedestal 112B, And circuit element 114 is disposed on insulating layer 124.Due to pedestal 112B made of circuit element 114 and metal material it Between be provided with insulating layer 124, therefore circuit element 114 will not be electrically connected with pedestal 112B.Design in this way, Ke Yizeng The structural strength of strong pedestal 112B, and pedestal 112B can be reduced in the thickness of Z-direction, so as to reaching the purpose of micromation.
In conclusion a kind of optical system of the utility model offer and a drive module, can drive an optical element It is moved relative to pedestal.Wherein, there is no the inside that drive module is occupied comprising any position sensing element is empty in drive module Between, therefore the induction coil in drive module can reduce height, so that the thickness of drive module entirety is reduced, and reach The purpose of micromation.
In addition, optical system includes a sensing unit and a control unit, sensing unit can sensing optical system A sensing signal is moved and exports, and control unit generates a driving current according to a reference data and the sensing signal, So that the electromagnetic drive component in drive module drives the optical element to be moved relative to the pedestal according to the driving current, to reach The purpose shaken to anti-hand.
Although the embodiments of the present invention and its advantage have been disclosed as above, it will be appreciated that people in the art Member without departing from the spirit and scope of the utility model, when can change, substitutes with retouch.In addition, the guarantor of the utility model Shield range be not necessarily limited by technique in specification in the specific embodiment, machine, manufacture, material composition, device, method and Step, those skilled in the art can understand from the utility model disclosure existing or following the developed technique, machine, Manufacture, material composition, device, method and step, as long as more or less the same function can be implemented in the embodiment here or obtained Obtaining more or less the same result can all use according to the utility model.Therefore, the scope of protection of the utility model includes above-mentioned technique, machine Device, manufacture, material composition, device, method and step.In addition, each claims constitute an other embodiment, and this practicality Novel protection domain also includes the combination of each claims and embodiment.

Claims (15)

1. a kind of optical system, which is characterized in that the optical system includes:
One optical element;And
One drive module includes:
One electromagnetic drive component is set in the shell and is electrically connected to the circuit element, which is to drive It moves the optical element to move relative to the pedestal, does not include any position sensing element in the drive module wherein;And
One fixed part, has:
One shell;And
One circuit unit is connected to the shell, which includes a pedestal and a circuit element.
2. optical system as described in claim 1, which is characterized in that the optical system also includes:
One sensing unit is set to outside the shell, which is to sense the movement of the optical system and export a sense Survey signal;And
One control unit is set to outside the shell, which generates one according to a reference data and the sensing signal and drive Streaming current, and the electromagnetic drive component is to drive the optical element to be moved relative to the pedestal according to the driving current.
3. optical system as claimed in claim 2, which is characterized in that the reference data includes the displacement distance of the optical element With a relation curve of the driving current.
4. optical system as claimed in claim 3, which is characterized in that optical element definition has an optical axis direction, and the drive Dynamic model block is not be overlapped when being observed along the optical axis direction with the sensing unit.
5. optical system as described in claim 1, which is characterized in that the electromagnetic drive component includes multiple first lines of induction Circle, which is disposed on pedestal, to drive the optical element to be moved along a first direction, and first sense Answer coil in the equal length of a second direction, and the first direction is vertical with the second direction.
6. optical system as claimed in claim 5, which is characterized in that the electromagnetic drive component includes multiple second lines of induction Circle, which is disposed on pedestal, to drive the optical element to be moved along a second direction, and second sense Answer coil in the equal length of a first direction.
7. optical system as described in claim 1, which is characterized in that the optical system includes also a circuit board, is set to this On pedestal, wherein the electromagnetic drive component includes multiple first induction coils and multiple second induction coils, is set to the electricity In the plate of road.
8. optical system as claimed in claims 6 or 7, which is characterized in that the circuit element is with the side of injection molding in mould Formula is in the pedestal.
9. optical system as described in claim 1, which is characterized in that the optical system includes also a circuit board, is set to this On pedestal, the wherein electromagnetic drive component includes multiple first induction coils and multiple second induction coils, and described the One induction coil and second induction coil are disposed on the circuit element in the circuit board.
10. optical system as described in claim 1, which is characterized in that the optical system also include a first circuit board and One second circuit board, and the electromagnetic drive component includes multiple first induction coils and multiple second induction coils, wherein institute It states the first induction coil and second induction coil is disposed in the first circuit board, and the circuit element is disposed on this On second circuit board.
11. optical system as described in claim 1, which is characterized in that the optical system includes also a circuit board, is set to this On pedestal, and the electromagnetic drive component includes multiple first induction coils and multiple second induction coils, wherein described first Induction coil and second induction coil are disposed in the circuit board, and the circuit element is to mold interconnection object The mode of (Molded Interconnect Device, MID) is formed on the pedestal.
12. optical system as described in claim 1, which is characterized in that the pedestal is made of the wherein circuit with metal material Unit includes also an insulating layer, is set on the pedestal, and the circuit element is disposed on the insulating layer.
13. optical system as claimed in claim 2, which is characterized in that the sensing unit includes a gyroscope, to detect this The vibrations of optical system.
14. optical system as claimed in claim 2, which is characterized in that the sensing unit includes a gravity sensor, to examine Survey the acceleration of the optical system.
15. optical system as described in claim 1, which is characterized in that the optical system also includes:
One image sensing unit is set in the shell, which is to sense the light of the optical element simultaneously Export an image sensing signal;And
One control unit is set to outside the shell, which generates according to the image sensing signal and a reference data One driving current, and the electromagnetic drive component is to drive the optical element to be moved relative to the pedestal according to the driving current.
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