CN101542386A - Image blur correction device and imaging apparatus equipped therewith - Google Patents

Abstract

An image blur correction device includes: a movable frame which is equipped with a lens or an imaging element and has a guide part; a fixed frame having a guide supporting part which movably supports the movable frame by coming into contact with the guide part; and a drive mechanism which drives the movable frame for correcting image blur by moving the movable frame relative to the fixed frame. The fixed frame has magnetic bodies, and the movable frame has urging magnets at positions corresponding to the magnetic bodies. Specifically, the urging magnets use attractive force between the magnets and the magnetic bodies, so as to urge the movable frame in a direction in which the guide part and the guide supporting part come into contact with each other.

Description

Image blur compensation device and be equipped with the imaging device of this device

Right of priority

The application requires right of priority based on each of Japanese patent application Nos.2006-226290 that submitted on August 23rd, 2006 and the 2006-226291 that submitted on August 23rd, 2006 and to it, and its whole contents merges to come at this by reference.

Technical field

The present invention relates to a kind of image blur compensation device, it is fuzzy at correcting image when allowing subject image to be imaged on the image-forming component subject image taken, this image-forming component produces view data, with the formation subject image, and relates to a kind of imaging device.More particularly, the present invention relates to have the image blur compensation device of image blur correcting function, it is followed because the subject image that camera shake causes moves by allowing image-forming component, can take through the subject image of overcorrect fuzzy, and relate to the imaging device that is provided with this image blur compensation device.

Background technology

As imaging device, the common known digital photographing apparatus that comprises camera shake correction mechanism.In the imaging device described in the Japanese Patent Application Publication instructions No.2004-274242, the example of camera shake correction mechanism is disclosed.In this imaging device, be installed on the removable framework of Y as the CCD of image-forming component.The removable framework of this Y is arranged on the end of stationary pipes, and this stationary pipes is held the lens barrel of taking on the optical axis.This stationary pipes is installed on the body shell.The removable framework of this Y by the guiding dressing table along keeping movably perpendicular to X-Y plane as the shooting optical axis of Z-direction.This guiding dressing table is fixed in the body shell and takes on the optical axis.The removable framework of this Y is arranged to a structure (driving mechanism), this structure by guiding on the dressing table permanent magnet and the magnetive attraction that forms in the face of the coil of magnet operate.In this tradition imaging device, processor is arranged in the body shell.X that causes in this processor sonde body housing and the inclination on the Y direction.And, by changing the electric current of distributing to coil according to the detection output valve that tilts, this processor control CCD, with servo-actuated because the moving of the subject image that camera shake causes.

Summary of the invention

During this time, in above-mentioned imaging device, if in guide, have loose fit as the movable mechanism of lens and image-forming component and so on, in other words, if owing to keep the removable framework of Y so that the removable framework of Y has given space along the smooth-going mobile some place of X-Y plane at the guiding dressing table, and cause between guiding dressing table and the removable framework of Y, loose fit taking place, then the removable framework of this Y can't smooth-goingly move.So existence comprises the problem that the image blur correcting performance of above-mentioned camera shake correction affects adversely.And this imaging device exists loose fit that lens or image-forming component are tilted, and causes aberration or focal shift to increase, thus the problem that imaging performance is also degenerated.The result, Jap.P. No.3728094 discloses a mechanism, and it has by the magnetic body being set in the position in the face of the permanent magnet in the driving mechanism and utilizing the attractive force between this magnetic body and permanent magnet to eliminate the camera shake correction performance that loose fit strengthens.Yet,,, influential to the distribution of magnetic field that is used to drive if the magnetic body is arranged in the magnetic field of driving mechanism as disclosed mechanism among the Jap.P. No.3728094.As a result, there is the danger cause that driving force descends, on unnecessary direction, to produce driving force etc. in the driving force fluctuation in the moving range, driving mechanism.And, in Jap.P. No.3728094, in the disclosed mechanism, promote the same out of trim of power of the supporting part of the removable framework of mobile-bearing.So, possibly can't carry out the elimination of loose fit definitely.

In view of foregoing problems, make the present invention and the purpose of this invention is to provide a kind of image blur compensation device, loose fit by eliminating targeting part definitely, prevent because the image degradation of tilting to cause and eliminate influence on the magnetic field of driving mechanism, it can smooth-going ground mobile imaging element or lens, and the present invention also aims to, the imaging device that uses this image blur compensation device is provided.

To achieve these goals, image blur compensation device of the present invention comprises: removable framework, and this removable framework is provided with lens or image-forming component and has targeting part; Fixed frame with guided bearing part, this guided bearing part is by contacting this removable framework of supporting movably with targeting part; And driving mechanism, it drives this removable framework by move this removable framework with respect to fixed frame, and it is fuzzy to be used for correcting image.This fixed frame has the magnetic body, and wherein this removable framework has the promotion magnet in the position corresponding to the moving body of this magnetic.Especially, this promotes the attractive force between magnet use magnet and the magnetic body, thereby forms the removable framework of promotion on the direction that contacts each other at targeting part and guided bearing part.

Herein, the combination that preferably promotes magnet and magnetic body is arranged on the both sides of lens or image-forming component.

And preferably this driving mechanism is a voice coil motor, and this voice coil motor comprises the yoke made by soft magnetic material, be fixed to permanent magnet on the yoke, and coil, and wherein forms this magnetic body by extending yoke.

And, preferably this driving mechanism is a voice coil motor, this voice coil motor comprises the yoke made by soft magnetic material, be fixed to permanent magnet on the yoke, and coil, and wherein to promote magnet be a plurality of permanent magnets, and they have different magnetic direction and be arranged in parallel with permanent magnet in the driving mechanism.

And to achieve these goals, image blur compensation device of the present invention comprises: the first removable framework, and this first removable framework is provided with lens or image-forming component and has the first direction targeting part; The second removable framework, this second removable framework have the second direction targeting part with by contact the first direction guided bearing part that supports this first removable framework movably with the first direction targeting part; Fixed frame, this fixed frame have the second direction guided bearing part that supports the second removable framework movably by contacting with the second direction targeting part; And driving mechanism, this driving mechanism drives the first and second removable frameworks by at least one that moves with respect to fixed frame in the first and second removable frameworks, and it is fuzzy to be used for correcting image.This fixed frame has the magnetic body, and wherein this first removable framework has the promotion magnet in the position corresponding to this magnetic body.Especially, this promotes the attractive force between magnet use magnet and the magnetic body, thereby on the direction that first direction targeting part and first direction guided bearing partly contact with each other, promote the first removable framework, thereby and on the direction that second direction targeting part and second direction guided bearing partly contact with each other, promote the second removable framework.

And to achieve these goals, imaging device of the present invention comprises this image blur compensation device.

To achieve these goals, image blur compensation device of the present invention comprises: removable framework, and this removable framework is provided with lens or image-forming component and has guide; Fixed frame with axis of guide, this axis of guide is by supporting removable framework movably with guide contacts; And driving mechanism, this driving mechanism drives this removable framework by move this removable framework with respect to fixed frame, and it is fuzzy to be used for correcting image.This axis of guide is made by magnetic material, and wherein permanent magnet is arranged in the removable framework in the part on the axis of guide.Especially, this permanent magnet uses the attractive force between the magnet and the axis of guide, thereby promotes removable framework on the direction that guide and the axis of guide contact with each other.

And, in image blur compensation device of the present invention, wherein this fixed frame as the axis of guide has two axis of guides that be arranged in parallel, wherein this removable framework as guide has first and second guides that contact with one of two axis of guides, and the 3rd guide that contacts with another axis of guide.These three guides comprise permanent magnet respectively.

And, in image blur compensation device of the present invention, this fixed frame as the axis of guide has two axis of guides that be arranged in parallel, and this removable framework as guide has first and second guides that contact with one of two axis of guides, and the 3rd guide that contacts with another axis of guide.This fixed frame comprises permanent magnet on the center section between first and second guides and the 3rd guide.

And to achieve these goals, image blur compensation device of the present invention comprises removable framework, and this removable framework is provided with lens or image-forming component and has the axis of guide; Fixed frame with guide, this guide supports removable framework movably by contacting with the axis of guide; And driving mechanism, this driving mechanism drives removable framework by move this removable framework with respect to fixed frame, and it is fuzzy to be used for correcting image.This axis of guide is made by magnetic material, and wherein permanent magnet is arranged in the removable framework in the part on the axis of guide.Especially, this permanent magnet uses the attractive force between the magnet and the axis of guide, thereby promotes removable framework on the direction that guide and the axis of guide contact with each other.

To achieve these goals, image blur compensation device of the present invention comprises: the first removable framework, and this first removable framework is provided with lens or image-forming component and has the first direction guide; The second removable framework, this second removable framework have the second direction guide and by supporting the first direction axis of guide of this first removable framework movably with the first direction guide contacts; Fixed frame, this fixed frame have by supporting the second direction axis of guide of the second removable framework movably with the second direction guide contacts; And driving mechanism, this driving mechanism drives the first and second removable frameworks by at least one that moves with respect to fixed frame in the first and second removable frameworks, and it is fuzzy to be used for correcting image.This first direction axis of guide is made by magnetic material, and wherein this first removable framework position on the first direction axis of guide in the first removable framework has permanent magnet.Especially, this permanent magnet uses the attractive force between the magnet and the first direction axis of guide, thereby forms the promotion first removable framework on the direction that contacts each other at the first direction guide and the first direction axis of guide.

And in image blur compensation device of the present invention, this second direction axis of guide is made by magnetic material, and this second removable framework position on the second direction axis of guide in the second removable framework has permanent magnet.Especially, this permanent magnet uses the attractive force between the magnet and the second direction axis of guide, thereby promotes this second removable framework on the direction that second direction guide and the second direction axis of guide contact with each other.

And to achieve these goals, imaging device of the present invention comprises aforesaid image blur compensation device.

Effect of the present invention

According to the present invention, except the driving mechanism that drives removable framework, this promotion magnet (permanent magnet) also is arranged in the removable framework, and, eliminated the loose fit between middle targeting part of moving of removable framework and the guided bearing part by magnetic body in the use fixed frame and the attractive force between the magnet.So, the distribution of magnetic field that is used to drive is not influenced, and does not have the generation equivalent risk of the driving force on the fluctuation increase that causes driving force reduction, moving range inner drive, the unnecessary direction.

And according to the present invention, the combination that promotes magnet and magnetic body is arranged on the both sides of lens or image-forming component.So,, can eliminate the loose fit between middle targeting part of moving of removable framework and the guided bearing part definitely because bias voltage does not take place in to the expulsive force of removable framework.

And, according to an aspect of the present invention,, form this magnetic body by in voice coil motor, extending yoke as driving mechanism.So, can under the situation that does not increase magnetic part newly, realize eliminating the loose fit between middle targeting part of moving of removable framework and the guided bearing part.

And, according to an aspect of the present invention,, have a plurality of permanent magnets of different magnetic direction and the permanent magnet in the driving mechanism and be arranged in parallel as promoting magnet.So, can eliminate acting on as the permanent magnet of magnet and the magnetive attraction between the promotion magnet.As a result, can prevent to proofread and correct the reduction of control performance, perhaps, and cause the coil current sinking to increase because attractive force or repulsive force add on the required power of the correction that produces by drive coil.Especially, promote magnet and produce attractive force or repulsive force, to act on the permanent magnet as magnet.

According to the present invention, except the driving mechanism that drives the first removable framework, this promotion magnet (permanent magnet) also is arranged in the first removable framework, and, eliminated the loose fit between first targeting part and first guided bearing part during the first removable framework moves by using the attractive force between the magnetic body in magnet and the fixed frame.So, the distribution of magnetic field that is used to drive is not influenced, and does not have the risk of the reduction that causes driving force, the generation of the driving force on the fluctuation increase of moving range inner drive, unnecessary direction etc.And, because the structure that has adopted the first removable framework to promote towards fixed frame, so do not adding under the situation of new parts, also can eliminate the loose fit between second targeting part and second guided bearing part in the second removable framework to the second removable framework.

According to the present invention, this imaging device comprises the image blur compensation device that can carry out driven in the loose fit in eliminating the moving of removable framework (the first and second removable frameworks).So, can obtain the image of correct blur correction mode.

Image blur compensation device of the present invention comprises: removable framework, and this removable framework is provided with lens or image-forming component, and has guide; And having the fixed frame of the axis of guide, this axis of guide is by supporting this removable framework movably with guide contacts.This axis of guide is made by magnetic material, and permanent magnet is arranged in the removable framework in the part on the axis of guide.Especially, this permanent magnet uses the attractive force between the magnet and the axis of guide, thereby forms the removable framework of promotion on the direction that contacts each other at the guide and the axis of guide.So lens or image-forming component can move smooth-goingly, and can prevent because the image degradation that tilts to cause.And, not only eliminate loose fit, and can eliminate as the coil of drive unit and the influence in the magnetic field between the permanent magnet.

And, as an aspect of of the present present invention, can be arranged on first to the 3rd guide position corresponding to the axis of guide as three permanent magnets that promote magnet.In the case, aspect its location, the distance that promotes between the magnet and the axis of guide can be set accurately.So, do not change under the too many situation in expulsive force, can carry out the stable elimination of loose fit.

And, as an aspect of of the present present invention, can be arranged on the centre position between first and second guides and on the 3rd guide as two permanent magnets that promote magnet.In the case, even reduce the quantity that promotes magnet, also can eliminate the loose fit between the guide and the axis of guide definitely.

Description of drawings

Fig. 1 is the decomposition diagram as the described CCD dressing table of first embodiment of image blur compensation device of the present invention.

Fig. 2 is the cut-open view that the structure of the described image blur compensation device of first embodiment of the present invention is shown.

Fig. 3 is the enlarged perspective that permanent magnet, yoke (yoke) is shown and promotes the setting of magnet (urging magnet).

Fig. 4 is the view that when optical axis direction is observed permanent magnet is shown and promotes the setting of magnet.

Fig. 5 A is a synoptic diagram, shows to act on as the permanent-magnet pieces of the part of driving mechanism and promote power between one of them permanent magnet of magnet.

Fig. 5 B is a synoptic diagram, shows to act on as the permanent-magnet pieces of the part of driving mechanism and promote power between another permanent magnet of magnet.

Fig. 6 is a cut-open view, shows first structure that improves embodiment of first embodiment of image blur compensation device of the present invention.

Fig. 7 is a cut-open view, shows second structure that improves embodiment of first embodiment of image blur compensation device of the present invention.

Fig. 8 is the decomposition diagram as the CCD dressing table of second embodiment of image blur compensation device of the present invention.

Fig. 9 is the explanatory as the CCD dressing table of second embodiment of image blur compensation device of the present invention, the schematic side elevation of the installation dressing table the CCD dressing table when directions X is observed has been shown in its underpart, and illustrated at an upper portion thereof, the relation between two axis of guides is installed in corresponding guide in the dressing table, corresponding promotion magnet disposed thereon and the Y direction dressing table.

Figure 10 is the explanatory as the CCD dressing table of second embodiment of image blur compensation device of the present invention, shows in corresponding guide in the Y direction dressing table, corresponding promotion magnet disposed thereon and the directions X dressing table relation between two axis of guides.

Figure 11 is an explanatory of improving the CCD dressing table of embodiment as first of second embodiment of image blur compensation device of the present invention, the schematic side elevation that dressing table is installed the CCD dressing table when directions X is observed has been shown in its underpart, and the relation of installing in corresponding guide in the dressing table, corresponding promotion magnet disposed thereon and the Y direction dressing table between two axis of guides has been shown at an upper portion thereof.

Figure 12 is an explanatory of improving the CCD dressing table of embodiment as first of second embodiment of image blur compensation device of the present invention, shows in corresponding guide in the Y direction dressing table, corresponding promotion magnet disposed thereon and the directions X dressing table relation between two axis of guides.

Figure 13 is the front elevation as the digital camera of the described imaging device of embodiment of the present invention.

Figure 14 is the rear view as the digital camera of the described imaging device of embodiment of the present invention.

Figure 15 is the top view as the digital camera of the described imaging device of embodiment of the present invention.

Figure 16 is a circuit diagram, has schematically shown the structure as the built-in system of the digital camera of the described imaging device of embodiment of the present invention.

Figure 17 is the process flow diagram that is used to explain as the integrated operation of the digital camera of the described imaging device of embodiment of the present invention.

Figure 18 A is used to explain the view of conduct according to the principle of the camera shake correction of the digital camera of the imaging device of embodiment of the present invention.

Figure 18 B is the view that is used to explain as according to the principle of the camera shake correction of the digital camera of the imaging device of embodiment of the present invention, and is the part zoomed-in view, shows the relation between the imaging surface of the capture lens of this digital camera and CCD.

Figure 19 is the front elevation of stationary pipes of lens barrel that the digital camera of embodiment of the present invention is shown.

Figure 20 is the vertical sectional view of the stationary pipes of the line I-I in Figure 19.

Figure 21 A is the rear view of stationary pipes shown in Figure 19, and the uninstalled state of flexible PCB is shown.

Figure 21 B is the rear view of stationary pipes shown in Figure 19, and the state that flexible PCB is installed is shown.

Figure 22 is the part amplification view of the line II-II intercepting in Figure 21 B.

Figure 23 A is an explanatory, show origin position of the present invention and force the major part of maintaining body (origin position forced retention mechanism), and be skeleton view, show the annexation between CCD dressing table, stepper motor and the throw-over gear.

Figure 23 B is an explanatory, shows the major part that origin position of the present invention is forced maintaining body, and is the part enlarged perspective of throw-over gear.

Figure 24 A is the explanatory view that the cam groove of rotation transmission gear is shown, and is the backplan of this rotation transmission gear.

Figure 24 B is the explanatory view that the cam groove of this rotation transmission gear is shown, and shows the cut-open view that obtains along annular broken V shown in Figure 24 A.

Figure 24 C is a synoptic diagram, shows the cam groove of this rotation transmission gear, and shows the state that cam pin slides on the inclined surface part of cam groove and the rotation transmission gear quilt upwards pushes away towards base member.

Figure 24 D is a synoptic diagram, shows the cam groove of this rotation transmission gear, and shows the flat part of this cam pin contact cam groove and the state that this rotation transmission gear is upwards pushed away always.

Figure 24 E is a synoptic diagram, shows the cam groove of this rotation transmission gear, and shows this cam pin contact the state that Pinggu bottom parts and this rotation transmission gear are pushed away always downwards after by precipitous vertical plane.

Figure 25 A is an explanatory, shows the installment state that keeps shown in Figure 23 A between pin and the recess, and is the part amplification view that tight contact condition between this maintenance pin and the recess perisporium is shown.

Figure 25 B is an explanatory, shows the installment state that keeps shown in Figure 23 A between pin and the recess, and is the part amplification view, shows the released state between this maintenance pin and the recess perisporium.

Figure 26 shows the view of folding flexible PCB before when observing from the front side.

Figure 27 shows the view that folding this flexible PCB before is connected the state on the CCD dressing table.

Figure 28 shows the view that connects the overlap condition of extension in the circuit board.

Figure 29 A is the skeleton view that schematically shows the relation that is provided with between this CCD dressing table and the flexible PCB.

Figure 29 B is the skeleton view of the direction from be different from Figure 29 A when observing, and schematically shows the relation that is provided with between CCD dressing table and the flexible PCB.

Figure 29 C is the skeleton view when the direction that is different from Figure 29 A and 29B is observed, and schematically shows the relation that is provided with between CCD dressing table and the flexible PCB.

Figure 30 is the circuit diagram that the described origin position of embodiments of the present invention is forced the retentive control circuit.

Figure 31 shows the process flow diagram of the embodiment of the control procedure of this origin position pressure maintaining body in the described camera shake correction of the embodiments of the present invention mechanism.

Figure 32 shows the circuit diagram of the embodiment of the described camera shake detection circuit of embodiments of the present invention.

Figure 33 is the circuit block diagram of the described camera shake correction control circuit of embodiments of the present invention.

Figure 34 shows the process flow diagram that the embodiment of setting up procedure is proofreaied and correct in the described change of embodiments of the present invention.

Figure 35 shows the process flow diagram of the embodiment of the described camera shake correction control circuit of embodiments of the present invention.

Figure 36 is the circuit block diagram that the improvement embodiment of feedback circuit shown in Figure 31 is shown.

Figure 37 is the process flow diagram that the series of steps of camera shake correction process in the described imaging device of embodiments of the present invention is shown.

Figure 38 shows the sequential chart of an embodiment of camera shake correction process in the situation about pressing entirely in the described imaging device of embodiments of the present invention.

Figure 39 shows the sequential chart of an embodiment of dispose procedure of the camera shake correction process of the described imaging device of embodiments of the present invention.

The sequential chart of an embodiment of camera shake correction process in the situation that Figure 40 presses in showing and once taking in the described imaging device of embodiments of the present invention entirely.

Figure 41 is a vertical sectional view, schematically shows the primary structure of lens barrel in the described image blur compensation device of embodiments of the present invention.

Figure 42 is a decomposition diagram, schematically shows the concrete structure of lens barrel in the described image blur compensation device of embodiments of the present invention.

Attached Reference numeral is described

101 (as image-forming component) CCD

1241 camera shake acquisition sensors

1251 CCD dressing tables

1252 position detection devices

1252a X position transducer

1252b Y position transducer

1263 origin positions are forced maintaining body

13 (as fixed frame) directions X dressing table

13a, 13b (directions X) axis of guide

14Y (as the removable framework of X) direction dressing table

14a, 14b (Y direction) axis of guide

15 (as the removable framework of Y) installation dressing table

15a, 15b, 15c, 15d coil web joint part

15g, 15g ', 15h (Y direction) guide

15e, 15f promotes magnet

15mg, 15mg ', 15mh promotes magnet (the Y direction moves)

15i promotes the magnet retaining part

16a, 16b, 16b ', 16c, 16d, 16i, 16j (being used to drive) permanent magnet

16a1, the 16a2 permanent-magnet pieces

16e, 16f, 16g, 16h, 16m, 16n yoke part

16e1,16f1,16f1 ' yoke part

16e2,16f2,16f2 ' extension

17a, 17a ', 17b, 17b ', 17b " (directions X) guide

17c promotes the magnet retaining part

17ma, 17ma ', 17mb ", 17mc (directions X) guide

19 fenders

The 19a recess

COL1, COL1 ', COL2, COL2 ' (being used to drive) coil body

Embodiment

With reference to accompanying drawing, will image blur compensation device of the present invention and the embodiment that is provided with the imaging device of this device be described.Yet the present invention not only is confined to following embodiment.

First embodiment of image blur compensation device of the present invention will be described below.

First embodiment of image blur compensation device of the present invention is an image blur compensation device, comprising: removable framework, and this removable framework is provided with lens or image-forming component and has targeting part; Fixed frame with guided bearing part, this guided bearing part supports this removable framework movably by contacting with targeting part; And driving mechanism, this driving mechanism drives removable framework by move this removable framework with respect to fixed frame, and it is fuzzy to be used for correcting image.This fixed frame has the magnetic body, and removable framework has the promotion magnet in the position corresponding to the magnetic body.Particularly, this promotes the attractive force between magnet use magnet and the magnetic body, thereby forms the removable framework of promotion on the direction that contacts each other at targeting part and guided bearing part.More particularly, first embodiment of image blur compensation device of the present invention is an image blur compensation device, comprising: the first removable framework, and this first removable framework is provided with lens or image-forming component and has the first direction targeting part; The second removable framework with second direction targeting part and first direction guided bearing part, this first direction guided bearing part supports the first removable framework movably by contacting with the first direction targeting part; Fixed frame with second direction guided bearing part, this second direction guided bearing part supports the second removable framework movably by contacting with the second direction targeting part; And driving mechanism, this driving mechanism drives the first and second removable frameworks by move at least one in the first and second removable frameworks with respect to fixed frame, and it is fuzzy to be used for correcting image.This fixed frame has the magnetic body, and the first removable framework has the promotion magnet in the position corresponding to this magnetic body.Particularly, this promotes the attractive force between magnet use magnet and the magnetic body, thereby form the promotion first removable framework on the direction that contacts each other at first direction targeting part and first direction guided bearing part, thereby and on second direction targeting part and the second direction guided bearing part direction that formation contacts each other, promote the second removable framework.

Fig. 1 shows the structure example as the CCD dressing table 1251 of first embodiment of image blur compensation device of the present invention.Herein, Fig. 1 is a decomposition diagram, shows the image blur compensation device of the CCD (charge-coupled device (CCD)) that is provided with as image-forming component.In Fig. 1, optical axis direction is arranged to the Z direction in the imaging device that will be described later (camera), and the both direction that is perpendicular to one another on the plane of Z axle as normal is arranged to directions X and Y direction respectively.

Comprise as the CCD dressing table 1251 of first embodiment of image blur compensation device of the present invention dressing table 15, Y direction dressing table 14 and directions X dressing table 13 are installed.It is the removable framework of Y (the first removable framework) that dressing table 15 is installed, and CCD101 and removable on the Y direction is installed above it.This Y direction dressing table 14 is the removable framework of X (second removable frameworks), and it moves on directions X, and is to be used for moving on the Y direction dressing table that dressing table 15 is installed.This directions X dressing table 13 is fixed frames, and it is fixed in the imaging device on the lens barrel main body, and is the dressing table that is used for moving at directions X Y direction dressing table 14.

This directions X dressing table 13 is annular frames, and this annular frame has the hole, and the middle section of this annular frame is passed through in this hole on the Z direction, and this annular frame is fixed on the base member 11 of the camera that will be described later.In this directions X dressing table 13,, a pair of axis of guide 13a and the 13b that extend on directions X are provided, and between them, on the Y direction, have had the space as second direction (X-direction) guided bearing part.In directions X dressing table 13, four rectangular parallelepiped permanent magnet 16a to 16d are set to magnet.These four permanent magnet 16a to 16d are provided with in pairs.Be set parallel to each other in X-Y plane as wherein a pair of this permanent magnet 16a to 16b, and on the Y direction, between them, have living space.In the first embodiment, adopted this that axis of guide 13a and 13b are passed this structure to permanent magnet 16a and 16b.Yet the present invention not only is confined to this.This can be parallel to this to axis of guide 13a and 13b setting to permanent magnet 16a and 16b.Yet, be set parallel to each other in X-Y plane as another right permanent magnet 16c and 16d, on directions X, between them, have living space.

In addition, in the bottom of directions X dressing table 13, the tabular yoke 16e to 16h that makes with the soft magnetic metal member is arranged to correspond respectively to permanent magnet 16a to 16d.This yoke 16e to 16h can be separately positioned on the pre-position on permanent magnet 16a to 16d.Yet this yoke 16e to 16h can directly be fixed to respectively on the permanent magnet 16a to 16d, perhaps can be fixed on the base member 11 outside the permanent magnet 16a to 16d for example.

In addition, yoke 16g and 16h make with having with the bottom surface same size of permanent magnet 16c and 16d and the rectangular slab of shape.Simultaneously, yoke 16e and 16f make with plate, are made up of yoke part (referring to Reference numeral 16e1 and the 16f1 among Fig. 2) and extension (referring to Reference numeral 16e2 and the 16f2 among Fig. 2).Yoke part (referring to the Reference numeral 16e1 and 16f1 among Fig. 2) forms the identical size and dimension in bottom surface that has with permanent magnet 16a and 16h.This extension (referring to Reference numeral 16e2 and the 16f2 among Fig. 2) is partly extended and is formed the middle section that is projected into directions X dressing table 13 respectively from the bottom surface of permanent magnet 16a and 16b from yoke.In addition, the extension of yoke 16e and 16f is arranged on the position on the both sides of CCD101.

Y direction dressing table 14 is rectangular frames, has the hole of passing through its middle section on the Z direction.In Y direction dressing table 14, as first direction (Y direction) guided bearing part, provide upwardly extending a pair of axis of guide 14a and 14b in Y side, on directions X, between them, have the space.In Y direction dressing table 14, guide 17a, 17a ', 17b and 17b ' are set to second direction (X-direction) targeting part.Guide 17a, 17a ', 17b and 17b ' formation have bearing shape (bearing shape) and ((17a and 17a ') and (17b and 17b ')) are set in pairs, and each is to all having the guide that faces with each other, and have the space on directions X between them.Two pairs of guides (17a and 17a ') and (17b and 17b ') are provided with the space between them on the Y direction.The guide of corresponding pairs (17a and 17a ') and (17b and 17b ') are supported to state of contact with it movably by paired axis of guide 13a and the 13b in the directions X dressing table 13.So Y direction dressing table 14 can move on directions X.

Dressing table 15 is installed is had a pair of coil web joint part 15a and 15b outstanding on directions X, and a pair of coil web joint part 15c and the 15d that on the Y direction, give prominence to.This CCD101 is fixed in the central authorities that dressing table 15 is installed.In dressing table 15 is installed, the guide (not shown) with the imaging surface same side of CCD101 on be set to first direction (Y direction) targeting part.Not shown guide forms has the bearing shape, and is provided with in pairs, and each has the space to all having the guide that faces with each other between them on the Y direction.In addition, each all is provided with the space to guide between them on directions X.Ying Dui guide is supported to state of contact with it movably by paired axis of guide 14a and 14b in the Y direction dressing table 14 mutually.So dressing table 15 is installed can be whole mobile on X and Y direction.Therefore, directions X dressing table 13 and Y direction dressing table 14 play the effect of guiding dressing table, and this guiding dressing table keeps installing dressing table 15 to be made it and can move along X-Y plane.Yet, because directions X dressing table 13 is arranged in the base member 11 in the fixed lens barrel 10, so dressing table is fixed with respect to the shooting optical axis in the body shell.Notice that in the first embodiment, first direction is set to Y direction, and second direction is set to X-direction.Yet first and second directions are not limited in first embodiment such, but can be any both directions that tilts in the plane perpendicular to optical axis direction.

In addition, in the base of frame that dressing table 15 is installed, be provided with and promote magnet 15e and 15f.Promote magnet 15e and 15f and be arranged on, in other words, be arranged on place, next-door neighbour top position, extension along the position of Z direction in the face of the extension of yoke 16e and 16f.Especially, being combined to form of the extension of the combination of the extension of promotion magnet 15e and yoke 16e and promotion magnet 15f and yoke 16f is a pair of, makes CCD101 be arranged between them along Y direction.In addition, promote the combination of the extension of magnet 15e and yoke 16e, and promote magnet 15f and be arranged to respect to the X-Z plane that comprises the center line that is connected corresponding coil body COL1 and COL1 ', and with respect to the Y-Z plane symmetry of the center line that comprises corresponding coil body COL2 of connection and COL2 ' with the combination of the extension of yoke 16f.

In addition, fender 19 is connected on the surface of CCD101, and this surface is relative with imaging surface.This fender 19 is formed with conical depression 19a in the central.Will be described later the function of this recess 19a.

Flatly be connected respectively on a pair of coil web joint part 15a and the 15b with coil body COL1 spiral and COL1 '.Coil body COL1 and COL1 ' are connected in series.Flatly be connected respectively on a pair of coil web joint part 15c and the 15d with coil body COL2 spiral and COL2 '.Coil body COL2 is also connected in series in the mode identical with COL1 ' with coil body COL1 with COL2 '.

Coil body COL1 is in the face of permanent magnet 16c, and coil body COL1 ' is in the face of permanent magnet 16d.In addition, coil body COL2 is in the face of permanent magnet 16a, and coil body COL2 ' is in the face of permanent magnet 16b.This is used for mobile CCD101 on directions X (dressing table 15 is installed) to coil body COL1 and COL1 '.In addition, this is used for mobile CCD101 on the Y direction (dressing table 15 is installed) to coil body COL2 and COL2 '.So in the present embodiment, this plays the effect of first coil to coil body COL1 and COL1 ', and each permanent magnet 16a and 16b play the effect of first permanent magnet.In addition, this plays the effect of second coil to coil body COL2 and COL2 ', and each permanent magnet 16a and 16b play the effect of second permanent magnet.

Especially, the combination of yoke part (16e1), permanent magnet 16a and the coil body COL2 of yoke 16e, and the effect that is used for the device of drive installation dressing table 15 on the Y direction is played in the combination of the yoke of yoke 16f part (16f2), permanent magnet 16b and coil body COL2 ', in other words, play the effect of driving mechanism on the Y direction.And, the combination of yoke 16g, permanent magnet 16c and coil body COL1, and the combination of yoke 16h, permanent magnet 16d and coil body COL1 ' plays the effect that is used for the device of drive installation dressing table 15 on directions X, in other words plays the effect of driving mechanism on the directions X.Therefore, being used for moving the driving mechanism (drive unit) that dressing table 15 is installed on X and Y direction is the motor (voice coil motor that electrification causes translation to be moved) that comprises coil and permanent magnet.

And, in one of them coil web joint part 15b, position detection device 1252a is set as in pairs coil web joint part 15a and 15b.Similarly, in one of them coil web joint part 15d, position detection device 1252b is set as in pairs coil web joint part 15c and 15d.This position detection device 1252a is used to survey the X position transducer that the position of dressing table 15 (CCD101) is installed on the directions X.This position detection device 1252b is used to survey the Y position transducer that the position of dressing table 15 (CCD101) is installed on the Y direction.As position detection device 1252a and 1252b, use Hall element in the first embodiment.

Herein, in the described image blur compensation device of first embodiment of the present invention, not shown fuzzy sniffer is arranged on the side of the camera of being installed.In this image blur compensation device, the position of dressing table 15 is installed on the directions X surveys, and the position of installation dressing table 15 is surveyed by Hall element 1252b on the Y direction by Hall element 1252a.And the position of CCD101 is controlled to by not shown control circuit and moves to the precalculated position, thus eliminate CCD101 go up owing to camera shake cause image blurring.

Fig. 2 is a cut-open view, shows the structure of the described image blur compensation device of first embodiment of the present invention.Fig. 2 shows the cut-open view of image blur compensation device shown in Fig. 1, and this cut-open view central position on directions X is cut open along the Y direction.For the position relation that makes CCD101, coil body COL2 and COL2 ', promote between magnet 15e and 15f, permanent magnet 16a and 16b and yoke 16e and the 16f is clear, other parts of this image blur compensation device have been omitted.

Fig. 2 shows directions X dressing table 13, Y direction dressing table 14 and the state that dressing table 15 correctly is provided with successively from the bottom is installed.Herein, yoke 16e and 16f are respectively fixed on the surface of permanent magnet 16a and 16b, this surface surperficial relative with in the face of coil body COL2 and COL2 '.And yoke 16e and 16f comprise yoke part 16e1 and 16f1 and extension 16e2 and 16f2 respectively.Yoke part 16e1 and 16f1 are arranged to have the identical size and dimension in bottom surface with permanent magnet 16a and 16b.Extension 16e2 and 16f2 extend from yoke part 16e1 and 16f respectively, and form the middle section that is projected into directions X dressing table 13 from the bottom surface of permanent magnet 16a and 16b.In addition, in the base of frame that dressing table 15 is installed, promotion magnet 15e is set and is 15f.Promote magnet 15e and 15f and can have the size that can apply expulsive force, this expulsive force can make between the guide (not shown) installed in the dressing table 15 and axis of guide 14a and the 14b and guide 17a, 17a ', eliminate in the gap between 17b and 17b ' and axis of guide 13a and the 13b.Herein, the meaning of the elimination in gap is as follows.Especially, on the Y direction, move, between the guide (not shown) in dressing table 15 is installed and axis of guide 14a in the Y direction dressing table 14 and the 14b given space (gap) is set with respect to the smooth-going of Y direction dressing table 14 for dressing table 15 is installed.When dressing table 15 being installed moving with respect to Y direction dressing table 14 on Y direction, this given space can cause the displacement on the Z-direction, so-called loose fit.And, for Y direction dressing table 14 moves with respect to the smooth-going of directions X dressing table 13 on directions X, guide 17a in Y direction dressing table 14,17a ' also provides given space (gap) between axis of guide 13a in 17b and 17b ' and the directions X dressing table 13 and the 13b.Therefore, the given space between Y direction dressing table 14 and the directions X dressing table 13 also can cause loose fit.In order to handle this loose fit, promote to install dressing table 15 towards directions X dressing table 13.The upper surface (surface that keeps axis of guide 14a and 14b from the top) that this promotes to allow axis of guide 14a to contact with 14b installs the guide (not shown) in the dressing table 15.And this upward promotion also allows axis of guide 13a to contact guide 17a in the Y direction dressing table 14 with 13b, 17a ', the upper surface of 17b and 17b ' (surface that keeps axis of guide 14a and 14b from the top).Contact with each other like that as mentioned above by the surface that allows the axis of guide and guide, do not hindering under its smooth-going mobile situation, installing between dressing table 15 and the Y direction dressing table 14 and preventing between Y direction dressing table 14 and the directions X dressing table 13 owing to displacement on the Z-direction, so-called loose fit take place given spatial joint clearance.This elimination that prevents to be called the gap of the generation of loose fit.And preferably each extension 16e2 and 16f2 have a zone at least, and this zone covers each scope that moves with installation dressing table 15 that promotes among magnet 15e and the 15f.

As mentioned above, in CCD dressing table 1251, the extension 16e2 of yoke 16e and 16f and 16f2 extend to respectively on the Z direction promoting the position of magnet 15e and 15f.So, work in the attractive force that promotes to act between magnet 15e and 15f and extension 16e2 and the 16f2, thereby in Fig. 2, promote to install dressing table 15 downwards.The result, in CCD dressing table 1251, the guide installed in the moving of dressing table 15 in the dressing table 15 and the elimination in the gap between axis of guide 14a and the 14b can be installed, and the mobile middle guide 17a of Y direction dressing table 14,17a ', the elimination in gap between 17b and 17b ' and axis of guide 13a and the 13b.

And, in CCD dressing table 1251,, promote magnet 15e and 15f and extension 16e2 and 16f2 and be arranged on the both sides of CCD101, thereby clamp CCD101 when when the Y direction is observed.Therefore, in CCD dressing table 1251, between the guide in dressing table 15 is installed and axis of guide 14a and the 14b and guide 17a, between 17b and 17b ' and axis of guide 13a and the 13b, there is not bias voltage in 17a '.So, can carry out the elimination in gap definitely.

And, in CCD dressing table 1251, the combination that promotes the extension 16e2 of magnet 15e and yoke 16e is arranged to the combination of the extension 16f2 that promotes magnet 15f and yoke 16f, with respect to the X-Z plane that comprises the center line that connects corresponding coil body COL1 and COL1 ', and with respect to the Y-Z plane symmetry that comprises the center line that connects corresponding coil body COL2 and COL2 '.Therefore, in CCD dressing table 1251, in being applied to the downward expulsive force of installing on the dressing table 15, there is not bias voltage.So, can carry out the elimination in gap definitely.

Simultaneously, in CCD dressing table 1251, for in the combination of the combination of the extension 16e2 that promotes magnet 15e and yoke 16e and the extension 16f2 that promotes magnet 15f and yoke 16f each, be provided with under the situation not having other members, the especially magnetisable material between them, it is close to each other that magnet and extension are provided with.So, in CCD dressing table 1251, can carry out the elimination in gap definitely with faint magnetive attraction.As a result, in CCD dressing table 1251, can prevent that unnecessary magnetive attraction from acting on the driving mechanism that is used for moving installation dressing table 15 (CCD101) on X and Y direction, this driving mechanism is the motor that comprises coil and permanent magnet.And, in CCD dressing table 1251, may suppress driving mechanism to the control of the moving restriction of dressing table 15 on X and Y direction is installed.

In CCD dressing table 1251, the combination that promotes the extension 16e2 of magnet 15e and yoke 16e is arranged between permanent magnet 16a and the coil body COL2, between permanent magnet 16b and the coil body COL2 ', between permanent magnet 16c and the coil body COL1, and Uncrossed position between permanent magnet 16d and the coil body COL1 ', they all are arranged to the driving mechanism that faces with each other.And, in CCD dressing table 1251, the combination that promotes the extension 16f2 of magnet 15f and yoke 16f also is arranged between permanent magnet 16a and the coil body COL2, Uncrossed position between permanent magnet 16b and the coil body COL2 ', between permanent magnet 16c and the coil body COL1 and between permanent magnet 16d and the coil body COL1 ', and they all are arranged to the driving mechanism that faces with each other.As a result, in CCD dressing table 1251, can prevent that unwanted magnetive attraction from acting on the driving mechanism that is used for moving installation dressing table 15 on X and Y direction.And, in CCD dressing table 1251, may suppress driving mechanism to the control of the moving restriction of dressing table 15 on X and Y direction is installed.

Although in the present embodiment, when when the Y direction is observed, promote magnet 15e and 15f and extension 16e2 and 16f2 and be arranged on the both sides of CCD101, when when directions X is observed, this magnet and extension also can be arranged on the both sides of CCD101.

Fig. 3 is an enlarged perspective, shows permanent magnet 16a, yoke 16e and promotes magnet 15e.And Fig. 4 is a view, shows as permanent magnet 16a when optical axis direction is observed and promotes the relation that is provided with between the magnet 15e.Promote magnet 15e and comprise two permanent magnet 15e1 and 15e2.These two permanent magnet 15e1 and 15e2 are being set parallel to each other on the horizontal direction of permanent magnet 16a, in other words, be arranged in parallel on the bearing of trend (X-direction) of permanent magnet 16a.The adjacent setting with 15e2 of these two permanent magnet 15e1 has magnetic direction positioned opposite to each other simultaneously.Herein, permanent magnet 15e1 makes the extension 16e2 of its S pole-face to yoke 16e, and makes its N utmost point in contrast.And on the contrary, permanent magnet 15e2 makes its N pole-face to extension 16e2, and makes its S utmost point in contrast.Notice that permanent magnet 16a comprises permanent-magnet pieces 16a1 and the 16a2 that is arranged on the Y direction.Especially, this permanent-magnet pieces 16a1 makes its S pole-face to yoke 16e, and makes its N utmost point in contrast, and permanent-magnet pieces 16a2 makes its N pole-face to yoke 16e, and makes its S utmost point in contrast.This permanent-magnet pieces 16a1 is arranged on and promotes on magnet 15e one side.

Fig. 5 A and 5B show the power of work (effect) between permanent-magnet pieces 16a1 and permanent magnet 15e1 and 15e2.As shown in Fig. 5 A, permanent-magnet pieces 16a1 is identical with the magnetic direction of permanent magnet 15e1 near the magnetic direction of the promotion magnet 15e of permanent magnet 16a.Therefore, repulsive force acts between permanent-magnet pieces 16a1 and the permanent magnet 15e1.Simultaneously, as shown in Fig. 5 B, the magnetic direction of permanent-magnet pieces 16a1 is opposite with the magnetic direction of permanent magnet 15e2.Therefore, attraction force acts is between permanent-magnet pieces 16a1 and permanent magnet 15e2.Herein, during in permanent magnet 15e1 and 15e2 only are set one, only be equipped with thereon on the installation dressing table 15 of CCD101 with respect to the attractive force of permanent magnet 16a and an effect in the repulsive force.So aforesaid attractive force or repulsive force do not add to by on permanent magnet 16a and the needed power of the image blur correcting that coil body COL2 produced that is oppositely arranged with it with needing.Therefore, proofread and correct control performance and descend, perhaps the energy consumption of coil increases.In the first embodiment, promoting magnet 15e is formed by two adjacent permanent magnet 15e1 with magnetic direction toward each other and 15e2.So, offset two permanent magnet 15e1 acting on the permanent magnet 16a and repulsive force and the attractive force of 15e2.As a result, can prevent to promote magnet 15e and produce above-mentioned unwanted power.And if preferably use same material, then permanent magnet 15e1 and 15e2 have same size.

Although a structure example of image blur compensation device of the present invention described above can add also as the permanent magnet of magnet and yoke or also can change that the position being set.Fig. 6 and 7 shows the structure example that first and second of first embodiment of the present invention improves the described image blur compensation device of embodiment.

Fig. 6 shows this first improvement embodiment, and wherein the permanent magnet as magnet and yoke adds in the structure of the image blur compensation device shown in Fig. 2.Herein, permanent magnet 16i and 16j and yoke 16m and 16n are arranged in above the side relative with the set side of permanent magnet 16a and 16b coil body COL2 and COL2 ', and described permanent magnet 16a and 16b and coil body COL2 and COL2 ' are paired.This permanent magnet 16i and 16j and yoke 16m and 16n can arbitrarily be arranged in the base member 11 that will be described later etc. (referring to Figure 19).When by permanent magnet is set as mentioned above, make it clamp coil body COL2 and COL2 ', when the magnetive attraction of per unit volume is arranged to equate, and compare in the structure shown in Fig. 2, can reduce permanent magnet 16a, 16b, the volume of 16i and 16j.As a result, can reduce its thickness.

Fig. 7 shows this and second improves embodiment, and wherein the position that is provided with as the permanent magnet of magnet and yoke changes in the structure of the image blur compensation device shown in Fig. 2.Herein, changed permanent magnet 16b and yoke 16f among Fig. 2 yoke part 16f1 the position is set.Especially, the yoke part 16fT of permanent magnet 16b ' and yoke 16f is arranged in the face of the coil body COL2 ' on the opposite side of coil body COL2 ' (coil body COL2 ' top among Fig. 7).In the case, yoke part 16f1 ' and extension 16f1 can be connected to each other by the coupling part, and this coupling part is extended around the coil web joint part 15d that wherein is provided with coil body COL2 ' and represented by doublet.So, can improve the design freedom of image blur compensation device.

With reference to Fig. 8 to 12, the described image blur compensation device of various details second embodiment.Herein, will the example that CCD101 is installed on the removable framework be described.

The described image blur compensation device of second embodiment of the present invention is a kind of image blur compensation device, and it comprises: removable framework, and it is provided with lens or image-forming component and has guide; Fixed frame with axis of guide, this axis of guide is by supporting this removable framework movably with guide contacts; And driving mechanism, by move this removable framework with respect to fixed frame, this removable framework of this drive mechanism is used for correcting image and blurs.In this image blur compensation device, this axis of guide is made by magnetic material, and permanent magnet is arranged on axis of guide top in the removable framework.Especially, this permanent magnet uses the attractive force between the magnet and the axis of guide, thereby forms this removable framework of promotion on the direction that contacts each other at the guide and the axis of guide.

Fig. 8 is a decomposition diagram, shows the CCD dressing table 1251 ' as second embodiment of image blur compensation device of the present invention.This CCD dressing table 1251 ' has and the identical essential structure of CCD dressing table 1251 in first embodiment.Represent the part of identical function with Reference numeral identical in the use and first embodiment, and will omit its detailed description.

As in the situation of CCD dressing table 1251 in first embodiment, comprise as the CCD dressing table 1251 ' of second embodiment of image blur compensation device of the present invention dressing table 15 ' is installed, this installation dressing table is the first removable framework and also is the removable framework of Y, CCD101 is installed above it; Y direction dressing table 14 ', it is the second removable framework and also is the removable framework of X, and as the directions X dressing table 13 ' of fixed frame.

In Y direction dressing table 14 ', first and second axis of guide 14a ' and 14b ' are parallel to each other fixing, and they are first direction (Y direction) axis of guides and make with magnetic material.Dressing table 15 is different with installing in first embodiment, installs not to be provided with in the dressing table 15 ' to promote magnet 15e and 15f.In dressing table 15 ' is installed, setting be the first and second guide 15g and 15g ' (referring to Fig. 9), they have the hole, first axis of guide 14a ' inserts in this hole; And the 3rd guide 15h (referring to Fig. 9), the 3rd guide has the U-shaped groove, and second axis of guide 14b ' inserts wherein.So the first guide 15g, the second guide 15g ' and the 3rd guide 15h play the effect of first direction (Y direction) guide.Corresponding guide 15g, 15g ' and 15h will install dressing table 15 ' and remain on three some places movably, and the while contacts with 14b ' with corresponding axis of guide 14a ' in the Y direction dressing table 14 '.So dressing table 15 ' is installed can be on the bearing of trend of axis of guide 14a ' and 14b ', in other words, on Y direction, move as the guide direction of first direction guide, keep its posture simultaneously.

And, different with directions X dressing table 13 in first embodiment, yoke 16e to 16h is not set in directions X dressing table 13 '.In directions X dressing table 13 ', first and second axis of guide 13a ' and 13b ' are parallel to each other fixing, and they are second direction (X-direction) axis of guides and make with magnetic material.In Y direction dressing table 14 ', setting be to have first and second guide 17a and the 17a ' that first axis of guide 13a ' inserts hole wherein; And have the 3rd a guide 17b of U-shaped groove ", this second axis of guide 13b ' is inserted in this groove.So, the first guide 17a, the second guide 17a ' and the 3rd guide 17b " and play the effect of second direction (X-direction) guide.Corresponding guide 17a, 17a ' and 17b " movably Y direction dressing table 14 ' is remained on three some places, simultaneously with directions X dressing table 13 ' in axis of guide 13a ' contact with 13b '.So this Y direction dressing table 14 ' can be on the bearing of trend of axis of guide 13a ' and 13b ', in other words, on directions X, move as the guide direction of second direction guide, keep its posture simultaneously.So being installed in the CCD101 that installs on the dressing table 15 ' can move on the random direction on the X-Y plane.

Fig. 9 installs the schematic side elevation of dressing table 15 ' its underpart shows the CCD dressing table 1251 ' of second embodiment when directions X is observed.And Fig. 9 also shows two axis of guide 14a ' installing in corresponding guide 15g, 15g ' and 15h in the dressing table 15 ', corresponding promotion magnet 15mg, 15mg ' disposed thereon and 15mh and the Y direction dressing table 14 ' and the relation between the 14b ' at an upper portion thereof.

Herein, the promotion magnet 15mg that makes with permanent magnet is arranged on the first guide 15g.The promotion magnet 15mg ' that makes with permanent magnet is arranged on the second guide 15g '.The promotion magnet 15mh that makes with permanent magnet is arranged on the 3rd guide 15h.Corresponding promotion magnet 15mg, 15mg ' and 15mh are arranged in above the Z-direction two axis of guide 14a ' and 14b '.First and second axis of guide 14a ' and the 14b ' that corresponding promotion magnet 15mg, 15mg ' and 15mh promotion are faced with it, thus by attracting the axis of guide, two axis of guide 14a and 14b are attracted towards a side among each guide 15g, 15g ' and the 15h.So, carry out the elimination in gap in the above described manner.

As mentioned above, in CCD dressing table 1251 ', promote magnet 15mg, 15mg ' and 15mh and be connected on guide 15g, 15g ' and the 15h.So, in CCD dressing table 1251 ', promote magnet 15mg, 15mg ' and 15mh with as the axis of guide 14a ' of magnet and 14b ' between in the good range accuracy of realization aspect its location.And expulsive force does not almost change yet.So, can realize the stable elimination in gap.

And, in CCD dressing table 1251 ', promote magnet 15mg, 15mg ' and 15mh and axis of guide 14a ' and 14b ' and be arranged on the both sides of CCD101, thereby clamp CCD101.Therefore, in CCD dressing table 1251 ', when the side draught in each guide 15g, 15g and 15h drew as axis of guide 14a and 14b, acting in the expulsive force of installing on the dressing table 15 did not have bias voltage.So, can carry out the elimination in gap definitely.

And, in CCD dressing table 1251 ', promote magnet 15mg, 15mg ' and 15mh and be connected on guide 15g, 15g and the 15h.So in CCD dressing table 1251 ', it is close to each other that promotion magnet 15mg, 15mg ' and 15mh and first and second axis of guide 14a ' and 14b ' can be provided with, this promotion magnet and first and second axis of guides are promoted, thereby attract by the attractive force of magnet.So, in CCD dressing table 1251 ', can carry out the elimination in gap definitely with faint magnetive attraction.As a result, in CCD dressing table 1251 ', can prevent that unwanted magnetive attraction from acting on the driving mechanism that is used for moving installation dressing table 15 ' on X and Y direction.And, might be suppressed at driving mechanism to the obstruction aspect the control of moving of dressing table 15 ' on X and Y direction is installed.

In CCD dressing table 1251 ', the combination that promotes magnet 15mg, 15mg ' and 15mh and two axis of guide 14a ' and 14b ' is arranged between permanent magnet 16a and the coil body COL2, between permanent magnet 16b and the coil body COL2 ', between permanent magnet 16c and the coil body COL1, and Uncrossed position between permanent magnet 16d and the coil body COL1 ', they all are arranged to face with each other, thereby play the effect that is used for moving the driving mechanism that dressing table 15 ' is installed on X and Y direction.As a result, in CCD dressing table 1251 ', can prevent that unwanted magnetive attraction from acting on the driving mechanism that is used for moving installation dressing table 15 ' on X and Y direction.And, may be suppressed at driving mechanism to the obstruction aspect the control of moving of dressing table 15 ' on X and Y direction is installed.

And Figure 10 shows corresponding guide 17a, 17a ' and the 17b in the Y direction dressing table 14 ' ", promote magnet 17ma, 17ma ' and 17mb " with CCD dressing table 1251 ' middle directions X dressing table 13 ' in relation between two axis of guide 13a ' and the 13b '.

In Y direction dressing table 14 ', the promotion magnet 17ma that makes with permanent magnet is arranged on the first guide 17a.And the promotion magnet 17ma ' that makes with permanent magnet is arranged on the second guide 17a '.And, the promotion magnet 17mb that makes with permanent magnet " be arranged on the 3rd guide 17b " on.Promote magnet 17ma, 17ma ' and 17mb " be arranged in above the Z direction axis of guide 13a ' and 13b '.Corresponding promotion magnet 17ma, 17ma ' and 17mb " first and second axis of guide 13a ' and the 13b ' in the directions X dressing table 13 ' that promotes to face with it so that by the attraction axis of guide two towards two guide 17a, 17a ' and 17b " a side draught draw two axis of guide 13a ' and 13b '.So, carry out the elimination in gap in the above described manner.

As mentioned above, in CCD dressing table 1251 ', promote magnet 17ma, 17ma ' and 17mb " be connected to corresponding guide 17a, 17a ' and 17b in the Y direction dressing table 14 " on.So, in CCD dressing table 1251 ', promoting magnet 17ma, 17ma ' and 17mb " with as between the axis of guide 13a ' of magnet and the 13b ' in the good range accuracy of realization aspect its location.And expulsive force does not almost change yet.So, can carry out the stable elimination in gap.

And, in CCD dressing table 1251 ', promote magnet 17ma, 17ma ' and 17mb " and the combination of two axis of guide 13a ' and 13b ' be arranged on the both sides of CCD101, thereby clamp this CCD101.Therefore, in CCD dressing table 1251 ', by with two axis of guide 13a ' and 13b ' towards guide 17a, 17a ' and 17b " in each a side draught draw, bias voltage does not take place in the expulsive force on acting on Y direction dressing table 14.So, can carry out the elimination in gap definitely.

And, in CCD dressing table 1251 ', promote magnet 17ma, 17ma ' and 17mb and " be connected on guide 17a, 17a ' and the 17b ' '.So, in CCD dressing table 1251 ', promote magnet 17ma, 17ma ' and 17mb " with first and second axis of guide 13a ' and 13b ' can be provided with close to each other ' this promotions magnet promoted with first and second axis of guides, thereby pass through the attractive force attraction of magnet.So, in CCD dressing table 1251 ', can carry out the elimination in gap definitely with faint magnetive attraction.As a result, can prevent that unwanted magnetive attraction from acting on the driving mechanism that is used for moving installation dressing table 15 ' on X and Y direction, the motor that this driving mechanism is made up of coil and permanent magnet.And, may be suppressed at driving mechanism and aspect the control of moving of installation dressing table 15 ' on X and Y direction, be restricted.

In CCD dressing table 1251 ', promote magnet 17ma, 17ma ' and 17rnb " be arranged between permanent magnet 16a and the coil body COL2 with the combination of two axis of guide 13a ' and 13b ', between permanent magnet 16b and the coil body COL2 ', between permanent magnet 16c and the coil body COL1; and Uncrossed position between permanent magnet 16d and the coil body COL1 '; they all are arranged to face with each other, thus play the effect of the driving mechanism that is used on X and Y direction, moving installation dressing table 15.As a result, in CCD dressing table 1251 ', can prevent that unwanted magnetive attraction from acting on the driving mechanism that is used for moving installation dressing table 15 ' on X and Y direction.And, may be suppressed at driving mechanism to the restriction that is subjected to aspect the control of moving of dressing table 15 ' on X and Y direction is installed.

In second embodiment, even the position of guide and the place-exchange of guide in the structure shown in Fig. 8 also can obtain same effect.Especially, in Y direction dressing table 14 ', be provided with: first guide (15g) and second guide (15g '), they all have first axis of guide (14a ') and insert hole wherein; And the 3rd guide (15h) with U-shaped groove, and second axis of guide (14b ') be inserted in this U-shaped groove.And, in dressing table 15 ' is installed, first axis of guide (14a ') and second axis of guide (14b ') parallel to each other fixing.By supporting the installation dressing table 15 ' that CCD101 is installed on it at three some places as mentioned above, dressing table 15 ' is installed on the bearing of trend of the axis of guide (14a ' and 14b '), is subjected to supporting movably, keep its posture simultaneously.Promote magnets (15mg, 15mg ' and 15mh) be separately positioned on three guides (15g, 15g ' and 15h) and go up on Z-direction position as three of permanent magnet to the axis of guide.By using the attractive force between the magnet and the axis of guide (14a ' and 14b '), three promote magnets (15mg, 15mg ' and 15mh) and can eliminate gap between the guide (15g, 15g ' and 15h) and the axis of guide in the moving of dressing table 15 ' is installed (14a ' and 14b ') definitely.Especially, be connected on the guide owing to promote magnet, thus promote magnet (15mg, 15mg ' and 15mh) with as the axis of guide of magnet (14a ' and 14b ') between in the good range accuracy of realization aspect its location.And, and expulsive force does not almost change yet.So, can realize the stable elimination in gap.

And, in second embodiment, adopt to promote magnet 17mb " guide 17b disposed thereon " keep the structure of the end of axis of guide 13b ' in the Y direction dressing table 14 '.In addition, the present invention not only is confined to above-mentioned example.For example, also may adopt permanent magnet 16b to be arranged on the two ends of axis of guide 13b ' separately, axis of guide 13b ' remains on the structure between them simultaneously.In the case, carry out the gap when eliminating when act on the attractive force that promotes between magnet and two axis of guides by use, Y direction dressing table 14 ' and directions X dressing table 13 ' can stably attract each other.So, can carry out the elimination in gap definitely.

With reference to Figure 11, will the improvement embodiment of second embodiment of image blur compensation device of the present invention be described.

Figure 11 is the cut-open view on the directions X, shows as the installation dressing table 15 '-1 in the CCD dressing table 1251 '-1 of the described image blur compensation device of improvement embodiment of second embodiment of the present invention.

In dressing table 15 '-1 is installed, promotes magnet retaining member 15i and be arranged in the center section between the first guide 15g and the second guide 15g.In dressing table 15 '-1 is installed, promote magnet 15mi and be arranged on the promotion magnet retaining member 15i, rather than on the promotion magnet 15mg ' on the promotion magnet 15mg on the first guide 15g and the second guide 15g '.

In CCD dressing table 1251 '-1, be arranged on the promotion magnet 15mi that promotes on the magnet retaining member 15i and installing between dressing table 15 '-1 and the Y direction dressing table 14 ' in the face of first axis of guide 14a ' on the Z-direction.And, in CCD dressing table 1251 '-1, be arranged on promotion magnet 15mh on the 3rd guide 15h on Z-direction to second axis of guide 14b '.So, in CCD dressing table 1251 '-1,, can eliminate the gap between two axis of guide 14a ' and 14b ' and corresponding guide 15g, 15g ' and the 15h definitely by two attractive forces that promote between magnet 15mh and 15mi and two axis of guide 14a and the 14b.And, can reduce the quantity that promotes magnet.Notice, except above-mentioned promotion magnet retaining member 15i and promotion magnet 15mi disposed thereon, and be not provided with outside promotion magnet 15mg and the 15mg ', the structure of the described image blur compensation device of improvement embodiment of second embodiment is identical with the structure of second embodiment.

And, in the described CCD dressing table 1251 '-1 of the improvement embodiment of second embodiment, in the support relation between Y direction dressing table 14 '-1 and directions X dressing table 13 '-1, can adopt the structure shown in Figure 11.Especially, as shown in Figure 12, in Y direction dressing table 14 '-1, promote magnet retaining member 17c and be arranged in the center section between the first guide 17a and the second guide 17a '.In Y direction dressing table 14 '-1, promote magnet 17mc and be arranged on the promotion magnet retaining member 17c, rather than the promotion magnet 17ma ' on the promotion magnet 17ma on the first guide 17a and the second guide 17a '.

In CCD dressing table 1251 '-1, be arranged on the promotion magnet 17ci that promotes on the magnet retaining member 17c and between Y direction dressing table 14 '-1 and directions X dressing table 13 '-1, facing first axis of guide 13a ' on the Z-direction.And, in CCD dressing table 1251 '-1, be arranged on the 3rd guide 17b " on promotion magnet 17mb " on Z-direction to second axis of guide 13b '.So, in CCD dressing table 1251 '-1,, can eliminate the gap between two axis of guide 13a and 13b and corresponding guide 17a, 17a ' and the 17b definitely by two attractive forces that promote between magnet 17mb and 17mc and two axis of guide 13a ' and the 13b '.And, can reduce the quantity that promotes magnet.Notice, except above-mentioned promotion magnet retaining member 17c and promotion magnet 17mc disposed thereon, and be not provided with outside promotion magnet 17ma and the 17ma ', the structure of the described image blur compensation device of improvement embodiment of second embodiment is identical with the structure of second embodiment.

Next, with the camera of describing as the embodiment of imaging device of the present invention.The imaging device of present embodiment comprises the above-mentioned first or second described image blur compensation device of embodiment (any one in those shown in Fig. 1 to 12).And the image blur correcting among the present invention is represented camera shake correction, movement of objects correction etc.Camera shake correction will be described herein.

(essential structure of digital camera)

Figure 13 is a front elevation, shows the example of the digital camera (hereinafter being also referred to as camera) as imaging device of the present invention.Figure 14 is the rear view of this camera.Figure 15 is the top view of this camera.Figure 16 is a circuit block diagram, schematically shows the structure of the built-in system of this digital camera.

In Figure 13, on the upper surface of camera main-body (body shell), the release-push shown in Figure 15 (release shutter) SW1, pattern dial SW2 and sub-LCD (being also referred to as sub-LCD) 1 are set.

On the front surface of camera main-body, the lens barrel unit 7, optical finder 4, flashlamp radiating portion 3, range cells 5 and the remote control light receiving part 6 that comprise capture lens are set.

As shown in Figure 14, on the rear surface of camera, power switch SW13, LCD monitor 18, AF LED8, flashlamp LED9, optical finder 4, wide-angle zoom switch SW 3, optical zoom switch SW 4, self-timer setting/reset switch SW5, menu switch SW6 are set, move up/stroboscopic is provided with switch SW 7, the switch SW that moves right 8, display switch SW9, move down/microspur (macro) switch SW 1O, be moved to the left/image confirms switch SW 11, OK switch SW 12 and camera shake correction switch SW 14.On the side of camera main-body, be provided for the lid 2 of storage card/battery loading chute.

Because the function of above-mentioned respective members and operation are known, so the descriptions thereof are omitted.Next, will the structure of the built-in system of camera be described.

In Figure 16, Reference numeral 104 expression digital camera processors (hereinafter being also referred to as processor).

This processor 104 has A/D converter 10411, CCD1 signal processing module 1041, CCD2 signal processing module 1042, CPU module 1043, local SRAM1044, USB module 1045, serial module 1046, JPEG CODEC module 1047 (it carries out the JPEG compression and decompression), RESIZE module 1048 (it increases and reduce the size of view data by interpolation), TV signal display module 1049 (it converts view data to vision signal, thereby this view data is presented on the exterior display device as LCD monitor and TV and so on) and memory card controller module 10410 (it stores the control of the storage card of captured view data).Above-mentioned corresponding each module is connected to each other by bus.

On the outside of processor 104, SDRAM103 is set.This SDRAM103 is connected on the processor 104 through Memory Controller (not shown) and bus.This SDRAM103 storage RAW-RGB view data (through the view data of white balance setting and Υ setting), YUV view data (through the view data of brightness data and chromatism data conversion) and jpeg image data (through the view data of JPEG compression).

On processor 104 outsides, also be provided with RAM107, internal memory 120 (being used for storer) in the captured view data of storage under the situation of memory card loading at memory card slot, reach the ROM108 of storage control program, parameter etc., all these also are connected on the processor 104 through bus.

When the power switch SW13 of camera opened, control program was loaded in the primary memory (not shown) of processor 104.Processor 104 is according to the operation of control program control appropriate section, and also control data, parameter etc. is stored among the RAM107 etc. temporarily.

Lens barrel unit 7 comprises lens barrel, and this lens barrel comprises the varifocal optical system 71 with zoom lens 71a, the Focused Optical system 72 with condenser lens 72a, the aperture unit 73 with aperture 73a and the mechanical shutter unit 74 with mechanical shutter 74a.

This varifocal optical system 71 is driven by zoom motor 71b, and Focused Optical system 72 drives by focusing on motor 72b.And aperture unit 73 is driven by aperture motor 73b, and mechanical shutter unit 74 is driven by mechanical shutter motor 74b.

Corresponding motor is driven by motor driver 75, and this motor driver is by CPU module 1043 controls of processor 104.

Subject image is formed on the CCD101 by each lens combination of lens barrel unit 7.This CCD101 converts subject image to picture signal, and this picture signal is outputed to F/E-IC 102.This F/E-IC 102 comprise carry out correlated-double-sampling with the CDS1021 of removal of images noise, be used for the AGC1022 of gain-adjusted and carry out analog-to-digital A/D converter 1023.Especially, 102 pairs of picture signals of this F/E-IC are carried out predetermined process, converting analog picture signal to digital signal, and this digital signal are outputed to the CCD1 signal processing module 1041 of processor 104.

These signal controlling are handled according to the vertical synchronizing signal VD and the horizontal-drive signal HD that export from the CCD1 signal processing module 1041 of processor 104 and are carried out through TG1024.This TG1024 produces the drive clock signal according to vertical synchronizing signal VD and horizontal-drive signal HD.

The CPU module 1043 of processor 104 is configured to by voice recording circuit 1151 control sound recording operations.Sound converts sound recording signal to by microphone 1153, and this signal is amplified by amplifier of microphone 1152.This voice recording circuit 1151 is according to the command record amplifying signal.CPU module 1043 is also controlled the operation of sound reproducing circuit 1161.This audio reproduction circuit 1161 reproduces the voice signal that suitably is stored in the storer by order, and voice signal is outputed to note amplifier 1162, thereby from loudspeaker 1163 output sounds.

And, these CPU module 1043 control flash lamp circuits 114, thereby from flashlamp radiating portion 3 emissive lighting light.In addition, this CPU module 1043 is also controlled range cells 5.

This CPU module 1043 is connected on the son-CPU109 of processor 104, and should the demonstration of son-CPU109 on lcd driver 111 control-LCD1.This son-CPU109 is also connected to AF LED8, flashlamp LED9, remote control light receiving part 6, the operating key unit with operating switch SW1 to SW14 and hummer 113.

This USB module 1045 is connected on the USB connector 122, and serial module 1046 is connected on the RS-232C connector 1232 by serial driver circuit 1231.This TV signal display module 1049 is connected on the LCD monitor 18 through lcd driver 117, and is connected to video jacks 119 (being used for camera is connected to exterior display device as TV and so on) through the video amplifier 118.This video amplifier 118 is to be used for amplifier that the input impedance of the output impedance of video jacks 119 and the splicing ear that is attached thereto is mated.In the present embodiment, the output impedance of these video amplifier 118 video jacks 119 is set to 75Q, thereby meets the input impedance standard setting in the splicing ear.Memory card controller module 10410 is connected on the contact that is arranged in the memory card slot 121, with become be inserted into memory card slot 121 in the electric connection point that is connected of the card contact of storage card (not shown).

This lcd driver 117 drives LCD monitor 118, and also will convert the signal that will be presented on the LCD monitor 18 to from the vision signal of TV signal display module 1049 outputs.This LCD monitor 18 be used for monitoring take before object state, confirm captured image and displayed record view data at storage card or internal memory 120.

In the main body of camera, stationary pipes (will be described later) has constituted the part of lens barrel unit 7.In this stationary pipes, CCD dressing table 1251 is arranged to and can be moved on X and Y direction.This CCD101 is installed on the CCD dressing table 1251 of a part that constitutes camera shake correction mechanism.The concrete physical construction of this CCD dressing table 1251 as mentioned above.

This CCD dressing table 1251 is driven by actuator 1255.This actuator 1255 is by driver 1254 controls.This driver 1254 comprises coil actuator MD1 and MD2.This driver 1254 is connected on the analog-digital converter IC1.This analog-digital converter IC1 is connected on the ROM108, and receives control data from ROM108.

In stationary pipes, origin position is set forces maintaining body 1263.Close or power switch SW13 when closing when camera shake correction switch SW 14, this origin position forces maintaining body 1263 that CCD dressing table 1251 is remained on middle position.This origin position forces maintaining body 1263 by the stepper motor STM1 control as actuator.This stepper motor STM1 is driven by driver 1261, and control data is input to this driver from ROM108.

Position detection device 1252 is connected on the CCD dressing table 1251.The detection of position detection device 1252 is input to amplifier 1253.Amplifier 1253 amplifies the detection output valve that receives of position detection device 1252, and the output valve that will amplify outputs to A/D converter 10411.Gyrosensor 1251 is arranged in the main body of camera, to survey the rotation (around the rotation of X and Y-axis) on X and the Y direction.The amplifier 1242 of the detection output valve of this gyrosensor 1251 through also playing the low-pass filter effect outputs to A/D converter 10411.

Next, will the basic operation of the described camera of present embodiment be described schematically.

If pattern dial SW2 is arranged to screening-mode, then camera is started working with screening-mode.Simultaneously, if this pattern dial SW2 is arranged to replay mode, then camera is started working with replay mode.It still is replay mode (S1 among Figure 17) that the on off state of processor 104 judgment model dial SW2 is in screening-mode.

And, but processor 104 control motor drivers 75 move to the camera site with the lens barrel of lens barrel unit 7.And processor 104 will be as the related circuit energising of CCD101, F/E-IC 102 and LCD monitor 18 and so on, to start working.When related circuit was switched on, the operation under the viewfmder mode began.

Under viewfmder mode, go up the light that forms incident at image-forming component (CCD101) by each lens combination and become to deliver to R, the G of CDS circuit 1021 and A/D converter 1023 and the simulating signal of B by opto-electronic conversion.This A/D converter 1023 becomes digital signal with analog signal conversion.Subsequently, digital signal converts yuv data to by the YUV converter that is arranged among the digital signal processor IC (SDRAM103), and is written in the frame memory by the Memory Controller (not shown).

This YUV signal is read by Memory Controller and delivers to TV (not shown) or LCD monitor 18 by TV signal display module 1049.So captured image is presented on TV (not shown) or the LCD monitor 18.This processing is carried out with 1/30 second interval.So the demonstration under the viewfmder mode on TV (not shown) or the LCD monitor 18 refreshed with per 1/30 second.More particularly, monitor processing (among Figure 17 S.2).Next, whether the setting of processor 104 judgment model dial SW2 changes (among Figure 17 S.3).If the setting of pattern dial SW2 remains under the screening-mode, then carry out photographing process by operation release-push SW1.

Under reproduction mode, processor 104 is presented at captured image on the LCD monitor 18 (among Figure 17 S.5).Next, whether the setting of processor 104 judgment model dial SW2 changes (among Figure 17 S.6).If the setting of pattern dial SW2 changes, then handle moving to S.1.If the setting of pattern dial SW2 does not change as yet, then repeat processing S.5.

(principle of camera shake correction)

Figure 18 A is the view that is used to explain the principle of camera shake correction.Figure 18 A shows the state that there is not the situation of camera shake in digital camera, shown in solid line, and by its heeling condition shown in the dotted line.And Figure 18 B is the view that is used to explain the principle of camera shake correction, and also is the part zoomed-in view, shows the relation between the imaging surface of the capture lens of camera main-body and CCD101.

When the imaging surface that does not have camera shake and CCD101 is in the P1 position, in other words, when being in the middle position of its moving range, subject image presents and is projected initial point O.Herein, if camera because camera shake and tilting in θ (θ x, θ y) direction, then imaging surface moves to position P2 and subject image moves to O '.In the case, imaging surface parallel mobile dx on the directions X and on the Y direction parallel mobile dy, thereby the position of imaging surface is set to P1.So subject image is returned initial point O.

(mechanical realization of image blur correcting mechanism)

Figure 19 is the front elevation of this stationary pipes.Figure 20 is the vertical sectional view of this stationary pipes.Figure 21 is the rear view of this stationary pipes.In Figure 19 to 21, Reference numeral 10 these stationary pipes of expression.This stationary pipes 10 has box-like, and it is inboard with acting on the storage space that keeps lens barrel.This stationary pipes 19 is arranged in the body shell (camera main-body) with respect to the qualification position of taking optical axis.The panel-shaped base body member 11 that integral body has essentially rectangular is connected on the rear surface of this stationary pipes 10.Helicoid 12 is formed on the internal perisporium place of this stationary pipes 10, is used for extending or folding lens barrel.This stationary pipes 10 has at least two nicked corner parts.One of them corner part 10a is as the mounting portion of the stepper motor STM that will be described later, and another corner part 10b is as the sweep of the flexible PCB that will be described later.

CCD dressing table 1251 is arranged in this base member 11.This CCD dressing table 1251 is the described image blur compensation devices of embodiments of the present invention, and can adopt any one shown in Fig. 1 to 12.Hereinafter, will the situation that adopt CCD dressing table 1251 shown in Fig. 1 to 5 be described.

CCD101 on the CCD dressing table 1251 is electrically connected to (referring to Figure 22) on the F/E IC 102 through this flexible PCB 20.The Hall element 1252a and the 1252b that are arranged in this CCD dressing table 1251 are electrically connected on the operational amplifier 1253 through this flexible PCB 20.And corresponding coil body COL1, the COL1 ', COL2 and the COL2 ' that are arranged in the CCD dressing table 1251 are electrically connected on the coil actuator 1254 through this flexible PCB 20.

(origin position is forced the mechanical realization of maintaining body)

As shown in the zoomed-in view of Figure 22 and 23, this origin position forces maintaining body 1263 to have stepper motor STM1.Force the mechanical realization of maintaining body 1263 with at first describing this position of components, and will be described below driving and the control of this stepper motor STM1.

As shown in Figure 19 and 22, this stepper motor STM1 is arranged on the corner part 10a place of stationary pipes 10.Output gear 21 is arranged on the output shaft 30 of this stepper motor STM1.Convert the corner part 10a place that linearly moving throw-over gear 22 is arranged on stationary pipes 10 to rotating to move.

This throw-over gear 22 roughly comprises rotation transmission gear 23, reciprocating shaft 24, coil bias spring 25, forces retainer plate 26 and spring load member 27.At the corner part 10a place of stationary pipes 10, a pair of support section 28 and 29 is formed with the space between them on Z-direction.This support section 28 is formed by connecting plate for electric motor.By connecting plate for electric motor 28 and support section 29 intersections are supported reciprocating shaft 24.Rotation transmission gear 23 is positioned at this between support section 28 and 29, to be supported rotationally by reciprocating shaft 24 and to mesh with output gear 21.

An end portion of this reciprocating shaft 24 penetrates support section 29, and faces the rear surface of base member 11.Coil bias spring 25 is arranged between spring load member 27 and the support section 29.Reciprocating shaft 24 by coil bias spring 25 towards support section 28 bias voltages.This reciprocating shaft 24 comprise with the step part 24a of the end face engagement of the axis hole of rotation transmission gear 23.

As shown in Figure 24 A to 24E, cam groove 31 is formed on a terminal part office of this rotation transmission gear 23.This cam groove 31 extends on the circumferencial direction of rotation transmission gear 23, and comprises Pinggu bottom parts 31a, flat peak part 31b, and from this Pinggu bottom parts 31a the inclined surface part 31c towards flat peak part 31b continuous tilt.Between this Pinggu bottom parts 31a peace peak part 31b, precipitous section 31d forms the contact wall that the cam pin that will be described later contacts with it from rotation direction.

Cam pin 32 is fixed on the support section 28, and the top of this cam pin 32 contacts with cam groove 31 slidably.Length on the rotation direction of Pinggu bottom parts 31a, in other words, the length of the inclination starting position 31e from precipitous section 31d to inclined surface part 31c is equivalent to two pulses of the rotation control signal of stepper motor STM1.

In other words length on the rotation direction of inclined surface 31c, be equivalent to 30 pulses of the rotation control signal of stepper motor STM1 to the inclination final position 31f length of leading to flat peak part 31b from inclination starting position 31e on the rotation direction.

Length on the rotation direction of flat peak part 31b, in other words, the length from inclination final position 31f to precipitous section 31d on the rotation direction is equivalent to 3 pulses of the rotation control signal of stepper motor STM1.Like this, 35 of stepping electrode STM1 pulses are enclosed corresponding to one of rotation transmission gear 23.By a circle of this rotation transmission gear 23, reciprocating shaft 24 is finished once reciprocal on the Z-direction.

Force retainer plate 26 to be arranged on the rear surface of base member 11.This forces retainer plate 26 to extend towards the central authorities of CCD101, as shown in Figure 21 A and 21B.This pressure retainer plate 26 is fixed on the end of reciprocating shaft 24 its bottom part 26a, and has the taper maintenance pin 33 free terminal part 26b that are fixed to the upper.And axis of guide 26c forms in the central authorities of the bearing of trend of forcing retainer plate 26 outstanding.

In base member 11, locator protrusions 11a is set is connected projection 11e and copulational protuberance 11d with 11b, coil.Coil connects projection 11c and has the winding part 34a that reverses disc spring 34 that is connected thereto.This reverses disc spring 34 makes an one end portion 34b engage with copulational protuberance 11d, and another end portion 34c engages with axis of guide 26c.In base member 11, form the pilot hole (not shown) that axis of guide 26c is led.

By when reversing disc spring 34 and locator protrusions 11a contacts, force retainer plate 26 separating with base member 11 or approaching upward to-and-fro movement of direction (Z-direction) along with the reciprocal of reciprocating shaft 24.This axis of guide 26c plays the stable reciprocal effect of forcing retainer plate 26.

Keep pin (installation projection) 33 to be configured to be installed among recess (mounting hole) 19a, remain on function on the origin position O thereby realize to install dressing table 15.As shown in the zoomed-in view of Figure 25 A, keep the perisporium 33a of pin 33 to tightly fit to state on the depression perisporium 19b of fender 19 corresponding to the maintenance holding fix of cam pin 32.Shown in the zoomed-in view of Figure 25 B, the state that the perisporium 33a that keeps pin 33 separates with the depression perisporium 19b of fender 19 with largest interval is corresponding to the release holding fix of cam pin 32.The maintenance holding fix of this cam pin 32 also is the pressure origin position that dressing table 15 is installed.

(how folding electric circuit plate)

Flexible printed circuit board 20 (hereinafter being also referred to as printed circuit board (PCB) 20) comprises CCD coupling part 201, coil coupling part 202, position detection device coupling part 203, modular circuit coupling part 204 and is connected extension 205.Figure 26 is the stretch-out view from the circuit board 20 of the front side observation of CCD coupling part 201.Figure 27 is the stretch-out view of the circuit board 20 observed from the rear side of CCD coupling part 201, shows circuit board and is connected state on the CCD dressing table 1251.

As shown in Figure 26, this CCD coupling part 201 has corresponding to the connection pattern part 201a of the connecting pin of CCD101 with corresponding to the through hole 201b of the recess 19a of fender 19.And, although it is not shown in Figure 26, but this coil coupling part 202 has the connection pattern part that is arranged on wherein, and this connection pattern part can be electrically connected on each coil body COL1, COL1 ', COL2 and the COL2 ' (hereinafter being also referred to as each coil body COL).And position detection device coupling part 203 has the connection pattern part that is arranged on wherein, and this connection pattern part is electrically connected on the position detection device 1252.Modular circuit coupling part 204 has and connects pattern part 204a, and this connection pattern part is electrically connected on the system module circuit as F/E-IC 102, operational amplifier 1253 and coil actuator 1254 and so on.So this system module circuit is electrically connected on CCD coupling part 201, coil coupling part 202 and the position detection device coupling part 203 by connecting extension 205.

In the present embodiment, connecting extension 205 is branched off into first and connects extension 206 and be connected extension 207 with second.When this connects extension 205 along straight line a and b when folding, this second connects that extension 207 forms and first to be connected extension 206 overlapping.When the second front and back side that connects extension 207 was put upside down, this second connected extension 207 and has and be connected the identical structure in extension 206 with first.So, will omit its detailed description.

This first connection extension 206 has first straight portion 208, first sweep 209, second straight portion 210, second sweep 211 and the 3rd straight portion 212.Along extending with the directions (towards the direction of corner part 10b) that about 45 degree tilt with respect to Y direction and X-direction, this CCD coupling part is arranged in assembling on the rear surface of CCD101 (referring to Figure 27) first straight portion 208 from CCD coupling part 201.These first sweep, 209 integral body have fan-shaped, and have the drift angle of about 45 degree.And first sweep 209 connects first straight portion 208 and second straight portion 210 under the situation that does not change their width dimensions.This second straight portion 210 is extended along X-direction.Second sweep, 211 integral body have fan-shaped, and have the drift angle of about 90 degree.And second sweep 211 connects second straight portion 210 and the 3rd straight portion 212 under the situation that does not change their width dimensions.The 3rd straight portion 212 forms has the length identical with second straight portion 210, and along the direction perpendicular to second straight portion 210, in other words, Y direction is extended.

Next, how mounting circuit boards 20 will be described.

As shown in Figure 27, under the state that the connecting pin of the connection pattern part 201a of CCD coupling part 201 and CCD101 matches and through hole 201b and recess 19a match, this circuit board 20 is installed on the CCD dressing table 1251 from fender 19 sides.

FPC accessory plate 213 is installed on the circuit board 20.This FPC accessory plate 213 is board members, and its shape is connected first straight portion 208 of extension 206 with the part and first of CCD coupling part 201 and the shape of first sweep 209 is complementary.In this FPC accessory plate 213, the first side part 213a that will be described later, be provided for the folding of support circuit plate 20 along the second side part 213b of the boundary line between first sweep 209 and second straight portion 210 and along the 3rd side part 213c of line d along straight line a.

Circuit board 20 is folding with straight line a and b as fold line, and is overlapping thereby the second connection extension 207 and first is connected extension 206, with (referring to Figure 28) between FPC accessory plate 213 is clipped in.

Circuit board 20 is folding with the straight line c as fold line, thereby position detection device coupling part 203 is overlapping with CCD coupling part 201, position detection device coupling part 203 is electrically connected to (referring to Figure 28) on the position detection device 1252.

This circuit board 20 is folding with the straight line d as fold line, thereby coil coupling part 202 is overlapping with CCD coupling part 201, goes up (referring to Figure 28) coil coupling part 202 is electrically connected to each coil body COL.According to above-mentioned steps, circuit board 20 is connected on the CCD dressing table 1251, thereby is positioned in the X-Y plane on the base member 11, as shown in Figure 28.

Next, as shown in Figure 21 B, 22,29A and 29B, the connection extension 205 of circuit board 20 is shown right angle fold greatly along fold line e, thereby second straight portion 210 is extended along the Y-Z plane at the corner part 10b place of stationary pipes 10.

And, the connection extension 205 of circuit board 20 is shown right angle fold greatly along fold line f, thereby compare with second straight portion 210, second sweep 211 is extending in the X-Y plane that the lens barrel lateral deviation is moved from base member 11 along Z-direction, and also extends towards stationary pipes 10.

Next, the connection extension 205 of circuit board 20 is shown right angle fold greatly along fold line g, thereby the 3rd straight portion 212 is extended along the X-Z plane at the corner part 10b place of stationary pipes 10.

The connection extension 205 of circuit board 20 is shown right angle fold greatly along fold line h, thereby extend along X-Y plane on the outside of stationary pipes 10 modular circuit coupling part 204.By folding along straight line h, form folded part 214, this folded part is along the X-Z plane.Modular circuit coupling part 204 is connected to (referring to Figure 19 and 21B) on the base member 11 by this folded part 214.

When carrying out camera shake correction, dressing table 15 is installed on base member 11, in X-Y plane, is moved.So, be fixed to the installation dressing table of installing on the dressing table 15 and connect side and be fixed to the relative distance that the modular circuit on the base member 11 connects between the side and in circuit board 20, change.In order to prevent that the variation of relative distance causes between them power from disturbing moving of dressing table 15 is installed, circuit board 20 has and is present in second straight portion 210 the Y-Z plane in and is present in the 3rd straight portion 212 in the X-Z plane.This second and the 3rd straight portion 210 and 212 location that is perpendicular to one another.Because circuit board 20 is easy in its thickness direction distortion, so by the power on the distortion absorption X-direction of crooked second straight portion 210.And, by the distortion of crooked the 3rd straight portion 212, absorb the power on the Y direction.As a result, can absorb the power that the variation of the distance in the X-Y plane causes.

And circuit board 20 has second sweep 211, this second sweep be present in by second straight portion 210, the 3rd straight portion 212 and stationary pipes 10 around X-Y plane in.Therefore, in circuit board 20, when power went up by the mobile folded part (straight line e) that is applied between the installation dressing table connection side and second straight portion 210 that dressing table 15 is installed, second straight portion 210 bent to the C shape of only launching in one direction.As a result, can reduce twisting stress.So, in circuit board 20, can reduce repulsive force, and can absorb the power that is caused that moves that dressing table 15 is installed effectively.On the other hand, if second sweep 211 be present in by second straight portion 210, the 3rd straight portion 212 and stationary pipes 10 around the outside in space on X-Y plane in, then by being applied to the power on the folded part (straight line e), second straight portion 210 bends to the S shape of launching on two relative directions.As a result, twisting stress increases relatively.Therefore, increase repulsive force, and reduced to install the uptake of the mobile power that causes of dressing table 15.This occurs on the 3rd straight portion 212 that absorbs the power on the Y direction equally.Therefore, when carrying out camera shake correction, circuit board 20 does not disturb moving of dressing table 15 is installed in the X-Y plane.

This circuit board 20 makes its folded part form along the corner part 10b place of Z-direction in stationary pipes 10.So, basically form around the space of lens barrel and to have circle, in other words, can use the corner part 10b of stationary pipes 10 effectively.As a result, may prevent to increase by the camera size that provides folded part to cause.

The first connection extension 206 that this circuit board 20 is branched off into connection extension 205 and can overlaps each other is connected extension 207 with second.So, under the situation that does not increase the width that connects extension 205, increase the quantity of power transfer path.And, may in the finite space of the corner part 10b of stationary pipes 10, provide folded part.Therefore, if too many power transfer path is not provided, then do not need to provide second to connect extension 207.

Circuit board 20 has the FPC accessory plate 213 that is connected thereto.So circuit board 20 is not crooked through the part of first straight portion, 208 to first sweeps 209 in the CCD coupling part 201 from circuit board 20.And the mobile power that is caused that dressing table 15 is installed can be applied on the 3rd straight portion 212.As a result, this power can absorb in folded part definitely.

(the retentive control circuit of camera shake correction mechanism)

This stepper motor STM1 is controlled by the retentive control circuit shown in Figure 30.This stepper motor STM1 has two phase control structures and comprises the first coil STMC and the second coil STMC ', this first coil has by output line 40a and 40a ' and is connected to terminal on the motor driver MD3, and this second coil has by output line 40b and 40b ' and is connected to terminal on the motor driver MD3.This output line 40a has the resistor R 18 that is used to limit the electric current that wherein provides, and output line 40b has the resistor R 19 that is used to limit the electric current that wherein provides.Capacitor C7 is arranged between this output line 40a and the 40a ', and capacitor C8 is arranged between this output line 40b and the 40b '.

The retentive control signal is input to motor driver MD3 from the port IN1 and the IN2 of processor 104.In addition, enabling signal (enable signal) is input to the port ENA of processor 104.This motor driver MD3 comes the distributing electric power of control step motor STM1 according to this retentive control signal and enabling signal.

Figure 31 is the process flow diagram that is used to explain the operation of the circuit of retentive control shown in Figure 30.This operation comprises three steps as reseting procedure, dispose procedure and maintenance process and so on.

When opening the power switch SW13 of digital camera, at first carry out this reseting procedure (S.1) according to the control of processor 104.In this reseting procedure, the control of stepper motor STM1 by processor 104 in the counterclockwise direction with 200pps (pulse/per second) than 2 pulses of jogging speed pivotable drive.Next, this stepper motor STM1 drives 33 pulses rotationally with the fast speed of 1000pps (pulse/per second) in the counterclockwise direction.At last, this stepper motor STM1 drives 2 pulses with 200pps (pulse/per second) than jogging speed in the clockwise direction rotationally.

No matter cam pin 32 is in any position on the rotation direction of cam groove 31, and by about 35 pulses of rotaty step motor STM1 in the counterclockwise direction, this cam pin 32 all contacts with the precipitous section 31d physics of cam groove 31.

When this stepper motor STM1 in the clockwise direction when the precipitous section 31d position contacting with cam pin 32 is activated 2 pulses, this cam pin 32 is arranged on the inclination starting position 31e (referring to Figure 24 E) of cam groove 31.The state that cam pin is arranged among the inclination starting position 31e of cam groove 31 is the reset position of cam pin 32, and it forces to remain on the state of origin position O corresponding to CCD101.This origin position O also is by shape dressing table 15 middle position in the scope movably.From power supply opening to the needed time of finishing that resets is about 53mese (millisecond).

In this camera shake correction mechanism, carry out camera shake correction by opening camera shake correction switch SW 14, and when closing camera shake correction switch SW 14 or finish shooting, discharge camera shake correction.

If open camera shake correction switch SW 14, then carry out dispose procedure (S.2) by processor controls 104.In this dispose procedure, stepper motor STM1 drives 2 pulses with 200pps (pulse/per second) than jogging speed at first in the clockwise direction rotationally.Next, stepper motor STM1 drives 28 pulses rotationally with the fast speed of 1000pps (pulse/per second) in the clockwise direction.Subsequently, be assigned to the electric power maintenance 5msec (millisecond) of this stepper motor STM1.Next, stop to be assigned to the electric power of stepper motor STM1 by motor driver MD1.

By above-mentioned dispose procedure, cam pin 32 is positioned at the inclination final position 31f (referring to Figure 24 D) of cam groove 31.From inclination starting position 31e to the required time of inclination final position 31f is about 43msec (millisecond).More particularly, cam pin 32 is about 43msec (millisecond) from keep holding fix to move to discharging the required time of holding fix.Camera shake correction is controlled at this release holding fix and carries out.

Next, when camera shake correction switch SW 14 is closed or taken when carrying out, processor 104 is carried out maintenance processes (S.3).In this maintenance process, by the control of processor 104, stepper motor STM1 drives 2 pulses with 200pps (pulse/per second) than jogging speed in the clockwise direction rotationally.After this, stepper motor STM1 drives 3 pulses rotationally with the fast speed of 1000pps (pulse/per second) in the clockwise direction.So cam pin 32 passes through the flat peak part 31b of cam groove 31, and drops to Pinggu bottom parts 31a, bottom parts 31a contacts with this Pinggu.Subsequently, be assigned to the electric power maintenance 5msec (millisecond) of this stepper motor STM1.

Next, motor driver MD1 stops the distributing electric power to stepper motor STM1.So cam pin 32 is arranged on the inclination starting position 31e of cam groove 31, and CCD101 remains on middle position.Although in a single day supply capability if carry out reseting procedure, is then carried out these dispose procedures and is kept the wait process.Notice that moving to the maintenance required time of holding fix from the release holding fix is about 18msec (millisecond).

This camera shake correction mechanism has the structure that the maintenance pin 33 that is formed in the pressure retainer plate 26 is forced the installation dressing table 15 of CCD101 to remain on middle position.So, do not need to control and be used for the distributing electric power that dressing table 15 remains on origin position O will be installed.As a result, though camera shake correction mechanism when work can reduce power consumption.

(circuit structure of camera shake detection circuit)

Figure 32 is the view that the circuit structure of camera shake detection circuit is shown.This camera shake detection circuit comprises the directions X rotation detection part of surveying the rotation on the directions X and the Y direction rotation detection part of surveying the rotation on the Y direction.

This directions X rotation detection partly has for example piezoelectric vibration gyro sensor S1B.This piezoelectric vibration gyro sensor S1B has: be connected to second terminal on the plus end of operational amplifier OP3 through the first terminal of capacitor C13J ground connection, the capacitor C10 of central authorities through being arranged on connecting line 42 '; And the resistor R 23 of the central authorities through being arranged on connecting line 43 is connected to the 3rd terminal on the negative terminal of operational amplifier OP3.

And, the 4th terminal ground connection of this piezoelectric vibration gyro sensor S1B, and also be connected on the connecting line 43 through capacitor C11.This operational amplifier OP3 has through resistor R 20 and is connected to plus end on the connecting line 43.The serial body that comprises resistor R 21 and switch ASW1 is parallel to resistor R 20 and is connected between connecting line 42 and 43.

This operational amplifier OP3 has through capacitor C12 and is connected to lead-out terminal on the negative terminal of operational amplifier OP3.Resistor R 22 is connected on the capacitor C12 with it abreast.This capacitor C1O and resistor R 20 are formed Hi-pass filter HPF1, and capacitor C12 and resistor R 22 composition low-pass filter LPF1.This operational amplifier OP3 amplifies the output of piezoelectric vibration gyro sensor S1B, and exports directions X detectable signal OUT1 from the lead-out terminal of operational amplifier OP3.

This Y direction rotation detection partly has piezoelectric vibration gyro sensor S2A.This piezoelectric vibration gyro sensor S2A has: through the first terminal of capacitor C17 ground connection; The capacitor C14 of the central authorities through being arranged on connecting line 44 is connected to second terminal on the plus end of operational amplifier OP4; The resistor R 26 of the central authorities through being arranged on connecting line 45 is connected to the 3rd terminal on the negative terminal of operational amplifier OP4 and ground connection and is connected to the 4th terminal on the connecting line 45 through capacitor C15.

This operational amplifier OP4 has through resistor R 24 and is connected to plus end on the connecting line 45.The serial body and the resistor R 24 that comprise resistor R 25 and switch ASW2 are connected between connecting line 44 and 45 abreast.This operational amplifier OP4 has through capacitor C16 and is connected to lead-out terminal on the negative terminal of operational amplifier OP4.This capacitor C14 and resistor R 24 are formed Hi-pass filter HPF2, and capacitor C16 and resistor R 27 composition low-pass filter LPF2.This operational amplifier OP4 amplifies the output of piezoelectric vibration gyro sensor S2A, and exports directions X detectable signal OUT2 from the lead-out terminal of operational amplifier OP4.

Changeover control signal SWC1 is input to switch ASW1 and ASW2 through signal wire 46.Each switch ASW1 and ASW2 have each the function of charging that is used for speed-up condenser C11 and C15, thereby improve each the response speed of Hi-pass filter HPF1 and HPF2.Processor 104 outputs to changeover control signal SWC1 the switch ASW1 and the ASW2 schedule time after opening power.So switch ASW1 and ASW2 open the schedule time.Every T second, detection output OUT1 and the OUT2 of gyrosensor S1B and S2A is read into A/D converter 10411.

Wherein

ω yaw (t) ... the instantaneous angular velocity of YAW direction

ω pitch (t) ... the instantaneous angular velocity of PITCH direction

θ yaw (t) ... the angle of YAW direction changes

θ pitch (t) ... the angle of PITCH direction changes

Dyaw (t) ... rotate the amount of movement of corresponding image at directions X with the YAW direction

Dpitch (t) ... rotate the amount of movement of corresponding image in the Y direction with the PITCH direction

θ yaw (t) and θ pitch (t) obtain by following relational expression

θyaw(t)＝∑ωyaw(i)T

θpitch(t)＝∑ωpitch(i)T

And, determine focal distance f from zoom point zp to focus fp.Following equation is based upon and the YAW direction rotate corresponding image amount of movement Dyaw (t), and the PITCH direction angle of rotating amount of movement Dpitch (t), the YAW direction of corresponding image change between the angle variation θ pitch (t) of θ yaw (t) and PITCH direction.

Dyaw(t)＝f*tan(θyaw(t))... (I)

Dpitch(t)＝f*tan(θpitch(t))... (ii)

Especially, the amount of movement Dpitch (t) that rotates the amount of movement Dyaw (t) of corresponding image and rotate corresponding image with the PITCH direction with the YAW direction is corresponding with the amount that CCD101 should move on the X-Y direction.

If camera shake causes the rotatable displacement on YAW direction and the PITCH direction, the target location of (ii) calculating CCD then by above-mentioned equation (i) and.And drive installation dressing table 15 makes, eliminate desired value and the X-Y direction surveyed by position detection device 1252 on poor between the physical location of CCD101.Every T carries out this control second.

Notice that when the detection output valve of gyrosensor S1B and S2A was " 0 ", dressing table 15 was installed in control, thereby CCD101 is by the translation motion along with the translation moving displacement Xd of mobile camera main body.

(camera shake correction control circuit)

Figure 33 is the block scheme that an example of camera shake correction control circuit is shown.This camera shake correction control circuit comprises that roughly feedback circuit 50 and position corresponding voltage are provided with circuit 51.

Hall element H1 and H2 ( Hall element 1252a and 1252b shown in Fig. 1) constitute the part that this position corresponding voltage is provided with circuit 51.Predetermined voltage Vh1 is applied on Hall element (1252a) H1.This Hall element H1 has through resistor R 2 and is connected to a terminal on the negative terminal of operational amplifier OP1 and is connected to another terminal on the plus end of operational amplifier OP1 through resistor R 3.

This operational amplifier OP1 has a lead-out terminal, and this lead-out terminal is connected on the input port L1 of processor 104 through resistor R 5, and also is connected on the negative terminal of operational amplifier OP1 through resistor R 1.In addition, the tie point between resistor R 5 and the input port L1 is through capacitor C1 ground connection.

Predetermined voltage Vh2-is applied on Hall element (1252b) H2.This Hall element H2 has through resistor R 7 and is connected to a terminal on the negative terminal of operational amplifier OP2 and is connected to another terminal on the plus end of operational amplifier OP2 through resistor R 8.

This operational amplifier OP2 has a lead-out terminal, and this lead-out terminal is connected on the input port L2 of processor 104 through resistor R 9, and is connected to through resistor R 6 on the negative terminal of operational amplifier OP2.In addition, the tie point between resistor R 9 and the input port L2 is through capacitor C2 ground connection.

Processor 104 has: output port L3, this output port are connected to and constitute on the D/A change-over circuit IC2 of a part that the position corresponding voltage is provided with circuit 51; Be connected to output port L4 and L6 on D/A change-over circuit IC2 and the D/A change-over circuit IC1, and be connected to the output port L5 on the D/A change-over circuit IC1.

Two output lines 61 and 62 are connected on the D/A change-over circuit IC2.Wherein output line 61 is input to the plus end of operational amplifier OP1 through resistor R 4, and another root output line 62 is input to the plus end of operational amplifier OP2 through resistor R 10.

From the chip selector signal D1 of output port L3, be input to D/A change-over circuit IC2 from the clock signal SCLK of output port L4 with from the correcting digital data DIN of output port L6.This D/A change-over circuit IC2 has the function of the digital-to-analog conversion of carrying out the correcting digital data.

This D/A change-over circuit IC1 constitutes the part of feedback circuit 50.Concentric line 63 and two output lines 64 and 65 are connected on the D/A change-over circuit IC1.This concentric line 63 is connected on coil driver MD1 and the MD2.Output line 64 is connected on the input terminal L7 of coil driver MD1 through resistor R 14.Output line 65 is connected on the input terminal L8 of coil driver MD2 through resistor R 15.

Tie point between resistor R 14 and the input terminal L7 is connected on the ground terminal ER1 of coil driver MD1 through capacitor C3.Tie point between resistor R 16 and the input terminal L8 is connected on the ground terminal ER2 of coil driver MD2 through capacitor C4.Concentric line 63 is connected on the power Vcc through resistor R 12 and R11.Tie point between them is through resistor R 13 ground connection.

The control signal CONT1 of from processor 104 is input to two coil driver MD1 and MD2.This coil driver MD1 has a lead-out terminal, and this lead-out terminal is connected to coil COL1 through resistor R 16 " on (the series connection body of coil body COL1 and COL1 ').Capacitor C5 is parallel to resistor R 16 and coil COL1 " the series connection body be connected.Coil driver MD2 has a lead-out terminal, and this lead-out terminal is connected to coil COL2 through resistor R 17 " on (the series connection body of coil body COL2 and COL2 ').Capacitor C6 is parallel to resistor R 17 and coil COL2 " the series connection body be connected.Coil COL1 " be used for drive installation dressing table 15 on directions X, and coil COL2 " be used for drive installation dressing table 15 on the Y direction.

Herein, be applied on the Hall element H1 and predetermined voltage Vh2-is applied under the state on the Hall element H2 at predetermined voltage Vh1-, when the detection output valve of gyrosensor S1B and S2A is 0 (referring to Figure 32), the detection output voltage values of Hall element H1 and H2 is set to Vh1 and Vh2, and CCD101 also is present in the middle position (initial point O) of moving area.In the case, the analog output voltage value of the respective input mouth L1 of processor 104 and L2 is set to VlADin and V2ADin.These output voltage values VlADin and V2ADin actual measurement.

According to about assembly error factor, Hall element H1 and the H2 of the mechanical location between magnet (permanent magnet) 16a to 16d and Hall element H1 and H2 relation with respect to installation site and coil COL1 that dressing table 15 is installed " and COL2 " with respect to the assembly error factor between the installation site that dressing table 15 is installed etc., this output voltage values (actual measured value) V1ADin and V2ADin variation.In addition, according to the characteristic of Hall element H1 and H2, output voltage values (actual measured value) V1ADin and V2ADin also can change.

Therefore, if do not proofread and correct, then all different for each camera corresponding to the probe value of the Hall element H1 of origin position O and H2.So, can't carry out the actual camera jitter correction.

In order to address this problem, correction voltage Vr1 ' and Vr2 ' are set to make, output voltage values V1Adin and V2Adin before proofreading and correct are arranged to constant voltage values (the reference voltage value is set), and this correction voltage is input to corresponding operational amplifier OP1 and OP2 from analog/digital converter IC2.More particularly, this correction voltage Vr1 ' and Vr2 ' are arranged so that, when CCD101 is present in origin position O and does not control CCD101 (when not giving coil COL1 " and COL2 " when powering), the variation of proofreading and correct output voltage values (probe value) V1Adin and V2Adin.

Herein, for correction voltage Vr1 ' and Vr2 ' are arranged to be provided with the reference voltage value, for example 1.7 volts, processor 104 carries out following calculating, and this is provided with the median that the reference voltage value is the mobile range voltage of operational amplifier OP1 and OP2 substantially.

Herein, for convenience, resistor is arranged to R2=R3=R7=R8 and R1=R4=R10=R6.In addition, the present invention is not limited thereto.

Under the situation of R2=R3=R7=R8 and R1=R4=R10=R6, set up following relational expression.

V1ADin＝R1/R2*((Vh1+)-(Vh1-))+Vr1’

V2ADin＝R1/R2*((Vh2+)-(Vh2-))+Vr2’

Processor 104 is configured to obtain correction voltage Vr1 ' and Vr2 ' according to above-mentioned expression formula by calculating.The result, even according to assembly error factor, Hall element H1 and H2 and coil COL1 about the mechanical location between magnet (permanent magnet) 16a-16d and Hall element H1 and H2 relation " and COL2 " with respect to the assembly error factor between installation dressing table 15 link positions etc., the probe value that is in Hall element H1, the H2 of the reference position of CCD101 or initial point O changes, and also can come mobile CCD101 according to the correcting value that gyrosensor is surveyed.

This processor 104 comprises a part that changes correcting circuit with D/A change-over circuit IC2, and no matter how the probe value of Hall element H1 and H2 changes, and this variation correcting circuit is all exported and is used for the corrected value that probe value is set to be provided with the reference voltage value.And processor 104 also plays and is used for by calculating the function that acquisition is provided with the correction value calculation device of reference voltage value.

Before the delivery of the last inspection of the factory that is used for assembling camera, this initial setting up is set, as shown in the process flow diagram of Figure 34 (referring to S.1 to S.3).

As shown in the process flow diagram of Figure 35, in working control, processor 104 at first reads according to the detection output valve OUT1 of camera shake detection circuit (S.11) and OUT2 and passes through to calculate the control target that obtains.Next, processor 104 reads the physical location corresponding voltage value V1ADin and the V2ADin (S.12) of Hall element H1 and H2 acquisition.So, poor between processor 104 calculation control desired values and position corresponding voltage value V1ADin and the V2ADin.

This processor 104 outputs to D/A conversion circuit IC1 according to the output valve of this difference with control data.This D/A conversion circuit IC1 output is corresponding to the control voltage Vdac1 and the Vdac2 (S.14) of control data.This control voltage Vdac1 and Vdac2 are input to coil driver MD1 and MD2.This coil driver MD1 and MD2 output to corresponding coil COL1 with driving voltage Vout1 and Vout2 " and COL2 ".

Suppose that Vr is a component voltage, then is provided with driving voltage Vout1 and Vout2 according to following equation:

Vout1＝(Vdac1-Vr)*K

Vout2＝(Vdac2-Vr)*K

Herein, parameter K is based on the proportionality constant of component voltage Vr.

CCD101 is subjected to magnet 16a to 16d and coil COL1 " and COL2 " magnetic field suction and repulsion, still be mobile on " negative voltage " direction of being controlled for " positive voltage " by among driving voltage Vout1 and the Vout2 each.So, changed the probe value of Hall element H1 and H2.Position corresponding voltage value V1ADin and V2ADin change corresponding to the change of probe value.This position corresponding voltage value feeds back to processor 104.So,, also can allow the smooth-going target location (S.15) of following of CCD101 even the detection output valve of camera shake detection circuit changes control target.When finishing shooting, stop control (S.16).

(improvement embodiment)

Figure 36 is the circuit diagram that the improvement embodiment of feedback circuit 50 is shown.Herein, processor 104 utilizes PWM to control the driving of control coil driver MD4, thereby control is to coil COL1 " and COL2 " distributing electric power.

More particularly, normal direction signal CON1 and reverse signal CON2 are input to coil controller MD4, and pulse voltage Vin1 and Vin2 also are input to coil actuator.Along with the high-level duration of pulse signal is elongated, to the distributing electric power voltage increase of coil COL1 and COL2.

(by opening the details that camera shake correction mechanism takes)

As shown in Figure 37, when opening camera shake correction switch SW 14 (S.1), gyrosensor S1B and S2A energising (S.2).When pressing release-push SW1, when pressing (S.3) to finish partly, (focusing operation) (S.4) operated in beginning focusing automatically.With the beginning of automatic focusing operation simultaneously, discharge the mechanical forced that dressing table 15 is installed and fix, and by to coil COL1 " and COL2 " carry out distributing electric power, the central retentive control of beginning CCD.

Next, the monitoring process of beginning camera shake.Processor 104 judges whether partly pressing of release-push SW1 continues (S.6).If this release-push SW1 partly presses release, then S.3 flow process returns step.During this time, if this release-push SW1 partly press continuation, then processor 104 determines whether to carry out the pressing entirely of release-push SW1 (S.7).If do not carry out pressing entirely of release-push SW1, then S.6 flow process returns step.

If finish pressing entirely of release-push SW1, then the servo-actuated of CCD101 on the image moving direction begins (S.8).Next, expose (S.9).When finishing exposure (S.10), the servo-actuated of CCD101 stops.(S.11)。Therefore, by processor 104 control to coil COL1 " and COL2 " distributing electric power (S.11), dressing table 15 is installed is returned origin position O.Processor 104 judges whether dressing table 15 is installed returns origin position O (S.12).Return if dressing table 15 is installed, then processor 104 mechanically (is forced maintaining body 1263 mechanically to force to remain on origin position O by origin position) dressing table 15 (CCD101) pressure will be installed to be fixed to origin position O (S.13).

Two kinds of patterns that have the operation timing that makes things convenient for release-push SW1.

Figure 38 is the sequential chart that camera shake correction is handled under the situation about pressing fully of release-push SW1.Herein, press fully and mean the releasing operation that has uncontinuity from half push of release-push SW1 to the complete push of release-push SW1.For example, press fully and mean that the user carries out shooting operation, this user carries out half push of release-push SW1, carries out the transition to exposure by pressing fully of in good time execution release-push SW1 then and begins operation.

If partly press release-push SW1, then begin the focusing operation of digital camera.Under this state, origin position forces maintaining body 1263 to discharge the pressure maintenance that dressing table 15 is installed as yet.Not to coil COL1 " and COL2 " power supply.And, dressing table 15 is installed is mechanically secured to middle position, and subject image is presented on the LCD monitor 18.

When finishing the focusing operation, processor 104 begins to force the stepper motor STM1 of maintaining body 1263 to carry out distributing electric power to origin position.So, discharge the mechanical forced that dressing table 15 is installed and keep.With the release while of forcing to keep, processor 104 begins coil COL1 " and COL2 " power supply.By to coil COL1 " and COL2 " the above-mentioned control of distributing electric power, carry out camera shake correction process during half push (discharging 1) of release-push SW1.When release-push SW1 presses (discharge 2) fully, by to coil COL1 " and COL2 " the control of distributing electric power, dressing table 15 is installed is once returned middle position.Subsequently, close after 18 a period of times of LCD monitor, and be arranged to not show the state of subject image.

Next, when the exposure of beginning rest image, according to camera shake, dressing table 15 is installed in control, makes it to follow image and moves.When finishing rest image when exposure, according to coil COL1 " and COL2 " the control of distributing electric power, dressing table 15 is installed is returned middle position.Next, processor 104 begins to force the stepper motor STM1 of maintaining body 1263 to carry out distributing electric power to origin position.So, the mechanical forced of dressing table 15 is installed fixes.Subsequently, stop coil COL1 " and COL2 " distributing electric power.

As mentioned above, even camera shake, the user is identification LCD monitor 18 visually also, with monitor discharge 1 during subject image, and can not have camera shake.

And in a single day when returning middle position during installation dressing table 15 is discharging 2, the composition that discharges during 2 is shifted with respect to the composition that discharges subject image during 1.But, according to the embodiment of the present invention, because in a single day return under the state of middle position at installation dressing table 15, just the subject image before taking is presented on the LCD monitor 18, so the user can confirm the composition (near expose) of subject image near shooting the time.

Figure 39 shows and is partly pressing release-push SW1, does not carry out complete push then, discharges under the situation about partly pressing of this release-push SW1 the sequential chart that camera shake correction is handled.

In partly the pressing of release-push SW1, begin the focusing operation.When finishing the focusing operation, processor 104 begins to force the stepper motor STM1 of maintaining body 1263 to carry out distributing electric power to origin position.So, discharge the mechanical forced that dressing table 15 is installed and keep.In the release that force to keep, begin coil COL1 " and COL2 " carry out distributing electric power.By to coil COL1 " and COL2 " the control of distributing electric power, carry out the camera shake correction process of (discharging 1) during partly the pressing of release-push SW1.

If during partly the pressing of release-push SW1, discharge half push of this release-push SW1, dressing table 15 then is installed according to coil COL1 " and COL2 " the control of distributing electric power return middle position.Next, processor 104 begins to force the stepper motor STM1 of maintaining body 1263 to carry out distributing electric power to origin position.So, mechanical fixation and maintenance that dressing table 15 is installed.Next, stop coil COL1 " and COL2 " carry out distributing electric power.

Figure 40 is when release-push SW1 presses in once taking fully, the sequential chart of camera shake correction process.Press half push (discharging 1) that means from release-push SW1 fully in once taking herein, and have successional releasing operation to its complete push (release 2).For example, press fully in once taking and mean that the shooting operation that is undertaken by the user, this user carry out half push of release-push SW1,, carrying out the transition to exposure at once and beginning operation then by carrying out pressing fully of release-push SW1.

If partly press release-push SW1, then begin the focusing operation of digital camera.Subject image is presented on the LCD monitor 18.And horse back carries out the complete push of release-push SW1 after half push of release-push SW1.Simultaneously, LCD monitor 18 cuts out, and is arranged under the state that does not show subject image.

When finishing the focusing operation, processor 104 begins to force the stepper motor STM of maintaining body 1263 to carry out distributing electric power to origin position.So, discharge the machinery that dressing table 15 is installed and keep.In the release that keeps, begin coil COL1 " and COL2 " distributing electric power.By control to coil COL1 " and COL2 " distributing electric power, dressing table 15 is installed is remained on central position.So, carry out the camera shake correction process.

By to coil COL1 " and COL2 " carry out distributing electric power, dressing table 15 is installed is remained on central position.So, the exposure of beginning rest image, and according to camera shake, dressing table 15 is installed is controlled, move to follow image.When finishing rest image when exposure, according to coil COL1 " and COL2 " the control of distributing electric power, dressing table 15 is installed is returned middle position.Next, processor 104 begins to force the stepper motor STM of maintaining body 1263 to carry out distributing electric power to origin position.So, mechanical fixation and maintenance that dressing table 15 is installed.Next, stop coil COL1 " and COL2 " carry out distributing electric power.

In once taking, under this situation about pressing fully, consider the operating period user who discharges 1 and finished the affirmation of composition, and do not need to discharge the affirmation of composition during 2.In a single day therefore, under the situation of considering in once taking, to press fully, during discharging 2, return middle position, also do not need reaffirming of composition even dressing table 15 is installed.So, owing to the composition that does not need to discharge during 2 is presented on the LCD monitor 18, so can simplify the camera shake correction control procedure.

And, owing to close LCD monitor 18 in the operating period of focusing, so can avoid unnecessary battery consumption.

In addition, when installation dressing table 15 was mechanically forced to remain on origin position O, the perisporium 33a of maintenance pin 33 pushed the depression perisporium 19b of fender 19.Therefore, the installation dressing table as the removable framework of Y is pressed towards object on Z-direction.So suppressed to install the loose fit of dressing table 15 on Z-direction.And, when installation dressing table 15 is not mechanically forced to remain on origin position O, by promoting magnet 15e and the extension 16e2 of 15f and yoke 16e and 16f and the attractive force between the 16f2, on Z-direction, be pressed towards object as the installation dressing table 15 of the removable framework of Y.So, suppressed to install the loose fit of dressing table 15 on Z-direction.As mentioned above, by will keep the pin 33 push direction be arranged to extension 16e2 that promotes magnet 15e and 15f and yoke 16e and 16f and 16f2 between attractive force push the installation dressing table 15 direction identical, CCD101 does not go up at optical axis direction (Z-direction) and moves carrying out camera shake correction operation constantly and force to keep and do not carry out between the moment of camera shake correction.So it is constant that the focal position keeps.

In camera shake correction device as embodiments of the present invention, promote magnet 15e and 15f along Z-direction by towards extension 16e2 and the 16f2 of corresponding yoke 16e and 16f attract with it.So in the camera shake correction device, installation dressing table 15 can be attracted the guiding dressing table to Y direction dressing table 14 and directions X dressing table 13 compositions, in other words, can be attracted to directions X dressing table 13.Therefore, the position of this guiding dressing table (under the situation between Y direction dressing table 14 is arranged on, forming position contacting with directions X dressing table 13) can be arranged to contact in the position that dressing table 15 is installed when Z-direction is observed.So, in the camera shake correction device, can prevent to be installed in the loose fit of CCD101 on Z-direction (pickup light direction of principal axis) of installing on the dressing table 15.And CCD101 can receive light at suitable focal length place.It should be noted that extension 16e2 and 16f2 are arranged at least promotes in the zone that magnet 15e and 15f move therein.So,, also can allow attraction force acts promoting between magnet 15e and 15f and extension 16e2 and the 16f2 even promotion magnet 15e and 15f move with moving on the Y direction of the Y direction dressing table 14 that is used for image blur correcting.

In the camera shake correction device of embodiment as mentioned above, corresponding coil body COL1, COL1 ', COL2 and COL2 ' are arranged on and install in the dressing table 15, and corresponding permanent magnet 16a to 16d is arranged in the directions X dressing table 13 that is included in the guiding dressing table.In addition, the present invention not only is confined to above-mentioned embodiment, is arranged on and installs in the dressing table 15 and corresponding coil body COL1, COL1 ', COL2 and COL2 ' are arranged on situation in the directions X dressing table 13 but can be applied to corresponding permanent magnet 16a to 16d.

As the described camera shake correction device of above-mentioned embodiment in, the rotation on X and the Y direction is surveyed by gyrosensor 1241, to survey the camera shake that causes in the camera main-body (body shell).In addition, the present invention not only is confined to above-mentioned embodiment, but can be applied to for example handle monitoring picture to survey the situation of camera shake.

As the described camera shake correction device of above-mentioned embodiment in, thereby thereby the guiding dressing table comprises supporting to be installed dressing table 15 and can and support the directions X dressing table 13 that this Y direction dressing table 14 can move on X-direction at the Y direction dressing table 14 that moves on the Y direction.But the present invention is not limited to above-mentioned embodiment, is kept movably along X-Y plane and be fixed in the body shell taking on the optical axis as long as dressing table 15 is installed.

It should be noted that, in the above-described embodiment, described such example, that is: wherein in camera, adopted CCD101 to come the fuzzy image blur compensation device of correcting image by moving as image-forming component with respect to the inclination (shake) of camera.In addition, the present invention also can be applicable to such image blur compensation device, and this image blur compensation device has the lens that are installed in wherein, rather than CCD101, and comes correcting image fuzzy by moving these lens with respect to the inclination (shake) of camera.In this case, by the corrected lens framework in the lens barrel is used as removable framework, can construct image blur compensation device of the present invention.

For example, Figure 41 and 42 shows the structure of a lens barrel, has the image blur compensation device of constructing described in the above-mentioned embodiment and may be used on this lens barrel.Figure 41 is a vertical sectional view, schematically shows the primary structure of lens barrel.Figure 42 is a decomposition diagram, schematically shows the detailed structure of this lens barrel.

Lens barrel shown in Figure 41 and 42 comprises first group of optical system L1, second group of optical system L2, the 3rd group of optical system L3, stationary pipes L4, cam tube L5, first group of drive pin L6, direct current generator L7, gear set L8, aperture L9, spring L10, lead screw L11, main shaft L12, countershaft L13, pulse motor L14, optical chopper (photointerruptors) L15 and L16, second group of drive pin L17 and pedestal L18.

In above-mentioned lens barrel, lensed image blur compensation device of the present invention can be installed on it be set to the 3rd group of optical system L3 for example being used to focus on, the 3rd group of optical system can move on X and Y direction.

Although described the present invention with respect to illustrative embodiments, the present invention is not limited thereto.What will be appreciated that is that under the situation that does not break away from scope of the present invention defined by the following claims, those skilled in the art can change above-mentioned embodiment.

Claims (13)

1. image blur compensation device comprises:

Removable framework, this removable framework is provided with any one in lens and the image-forming component and has targeting part;

The fixed frame that the guided bearing part is arranged, this guided bearing part is by contacting this removable framework of supporting movably with targeting part; And

Driving mechanism, this driving mechanism drives this removable framework by move this removable framework with respect to fixed frame, and it is fuzzy to be used for correcting image,

Wherein this fixed frame has the magnetic body, and

Wherein this removable framework has the promotion magnet in the position corresponding to the moving body of this magnetic, this promotes magnet and uses attractive force between magnet and the magnetic body, thereby promotes described removable framework on the direction that targeting part and guided bearing partly contact with each other.

2. image blur compensation device as claimed in claim 1, the combination that wherein promotes magnet and magnetic body are arranged in lens and the image-forming component on the both sides of any one.

3. image blur compensation device as claimed in claim 1, wherein

Described driving mechanism is a voice coil motor, and this voice coil motor comprises the yoke made by soft magnetic material, is fixed to permanent magnet and coil on the yoke, and

Wherein said magnetic body forms by extending described yoke.

4. image blur compensation device as claimed in claim 1, wherein

This driving mechanism is a voice coil motor, and this voice coil motor comprises the yoke made by soft magnetic material, is fixed to permanent magnet and coil on the yoke, and

Wherein promoting magnet is a plurality of permanent magnets, and described a plurality of permanent magnets have different magnetic direction and be arranged in parallel with permanent magnet in the driving mechanism.

5. image blur compensation device comprises:

The first removable framework, this first removable framework is provided with any one in lens and the image-forming component and has the first direction targeting part;

The second removable framework, this second removable framework have second direction targeting part and the first direction guided bearing part that supports this first removable framework by contacting with the first direction targeting part movably;

Fixed frame, this fixed frame have the second direction guided bearing part that supports the second removable framework by contacting with the second direction targeting part movably; And

Driving mechanism, this driving mechanism drives the first and second removable frameworks by at least one that moves with respect to described fixed frame in the described first and second removable frameworks, and it is fuzzy to be used for correcting image,

Wherein said fixed frame has the magnetic body, and

The wherein said first removable framework has the promotion magnet in the position corresponding to this magnetic body, this promotion magnet uses the attractive force between described magnet and the magnetic body, thereby on the direction that first direction targeting part and first direction guided bearing partly contact with each other, promote the first removable framework, thereby and on the direction that second direction targeting part and second direction guided bearing partly contact with each other, promote the second removable framework.

6. imaging device that comprises image blur compensation device as claimed in claim 1.

7. image blur compensation device comprises:

Removable framework, this removable framework is provided with any one in lens and the imaging device and has guide;

Fixed frame with axis of guide, this axis of guide is by supporting described removable framework movably with guide contacts; And

Driving mechanism, this driving mechanism drives removable framework by move this removable framework with respect to fixed frame, is used for correcting image,

The wherein said axis of guide is made by magnetic material, and

Wherein permanent magnet is arranged in the removable framework in the part on the axis of guide, and this permanent magnet uses the attractive force between the magnet and the axis of guide, thereby promotes removable framework on the direction that guide and the axis of guide contact with each other.

8. image blur compensation device as claimed in claim 7, wherein

This fixed frame as the axis of guide has two axis of guides that be arranged in parallel,

Wherein this removable framework as guide has first and second guides that contact with one of two axis of guides, and the 3rd axis of guide that contacts with another axis of guide, and wherein these three guides comprise permanent magnet respectively.

9. image blur compensation device as claimed in claim 7, wherein

This fixed frame as the axis of guide has two axis of guides that be arranged in parallel,

Wherein this removable framework as guide has and contacted first and second guides of one of two axis of guides, and and contacted the 3rd axis of guide of another axis of guide, and

Wherein this fixed frame is comprising permanent magnet on the center section between first and second axis of guides He on the 3rd axis of guide.

10. image blur compensation device comprises:

Removable framework, this removable framework is provided with lens or imaging device and has the axis of guide;

Fixed frame with guide, this guide supports removable framework movably by contacting with the axis of guide; And

Driving mechanism, this driving mechanism drives removable framework by move this removable framework with respect to fixed frame, and it is fuzzy to be used for correcting image,

The wherein said axis of guide is made by magnetic material, and

Wherein permanent magnet is arranged in the fixed frame in the part on the axis of guide, and this permanent magnet uses the attractive force between the magnet and the axis of guide, thereby promotes described removable framework on the direction that guide and the axis of guide contact with each other.

11. an image blur compensation device comprises:

The first removable framework, this first removable framework is provided with any one in lens and the image-forming component and has the first direction guide;

The second removable framework, this second removable framework have the second direction guide and by supporting the first direction axis of guide of this first removable framework movably with the first direction guide contacts;

Fixed frame, this fixed frame have by supporting the second direction axis of guide of the second removable framework movably with the second direction guide contacts; And

Driving mechanism, this driving mechanism drives the first and second removable frameworks by at least one that moves with respect to fixed frame in the first and second removable frameworks, and it is fuzzy to be used for correcting image, and

Wherein this first direction axis of guide is made by magnetic material, and

Wherein the position on the first direction axis of guide of this first removable framework in the first removable framework has permanent magnet, this permanent magnet uses the attractive force between the magnet and the first direction axis of guide, thereby promotes the first removable framework on the direction that first direction guide and the first direction axis of guide contact with each other.

12. image blur compensation device as claimed in claim 11, wherein

The described second direction axis of guide is made by magnetic material, and

Wherein the position on the second direction axis of guide of this second removable framework in the second removable framework has permanent magnet, this permanent magnet uses the attractive force between the magnet and the second direction axis of guide, thereby promotes this second removable framework on the direction that second direction guide and the second direction axis of guide contact with each other.

13. an imaging device comprises image blur compensation device as claimed in claim 7.

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