CN101324737A - Image blur correction unit, image blur correction apparatus and imaging apparatus - Google Patents
Image blur correction unit, image blur correction apparatus and imaging apparatus Download PDFInfo
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- CN101324737A CN101324737A CNA2008101082516A CN200810108251A CN101324737A CN 101324737 A CN101324737 A CN 101324737A CN A2008101082516 A CNA2008101082516 A CN A2008101082516A CN 200810108251 A CN200810108251 A CN 200810108251A CN 101324737 A CN101324737 A CN 101324737A
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Abstract
The invention provides an image blurring correction unit, an image blurring correction device incorporating the image blurring correction unit, a camera incorporating the image blurring correction device, and a mobile device having the camera. The holding module (202) is in the shape that the part (202P) on the opposite angles of the axial point of the optic axis of the lens (100a), opposite to the side of the cover (201), reduces from the direction away from the cover (201). In addition, even if the cover (201) is small, it can also hole the rocking range of the module (202).
Description
Technical field
The present invention relates to a kind of hand that can be used as and tremble image blur correcting unit, the image blur compensation device that possesses this image blur correcting unit that aligning gear is useful in the camera heads such as mobile phone of digital camera for example or band camera, possess the camera of this image blur compensation device, and the mobile device that possesses this camera.
Background technology
From in the past,, tremble aligning gear (with reference to patent documentation 1,2,3) at the various hands of employings such as digital camera in order to suppress to tremble and the photographs that causes fuzzy by user's hand.
Tremble aligning gear as this hand, adopt to keep photography with the maintenance module of lens bow to inclining (ピ Star チ Application グ) direction and spiral the rotation of (ヨ one イ Application グ) direction freely what is called be called as the mode of omnidirectional mechanism.
Yet the situation of patent documentation 1 disclosed omnidirectional mechanism as described is necessary rotation swivel adapter head freely etc. is configured in 4 positions up and down that keep module, and therefore, hand is trembled aligning gear and always tended to maximize.
Therefore, by having asked following such driving structure among the applicant: promptly shake any the axle point that supports freely as along the periphery that keeps module, and keep the periphery of module along this, by the 1st drive point and the 2nd drive point that leaves to the 1st different mutually directions and the 2nd direction respectively from described axle point, drive the drives structure of described maintenance module, and, patented claim 2006-269712 number, patented claim 2006-269713 number, patented claim 2006-269714 number, patented claim 2006-269715 number etc. have been proposed as unexposed application.And the applicant is as patented claim 2007-035341 number image blur correcting unit, also proposes so that these are improved and the position detection accuracy that improves the maintenance module when keeping module to shake is the technology of purpose in first to file.If be implemented in the drives structure that these applications are proposed, then can realize the miniaturization of image blur correcting unit, and can be loaded into mobile device.
Fig. 8 is the figure of the effect of the described image blur correcting unit of explanation.
Be illustrated in to take place when fuzzy to close at Fig. 8 (a), Fig. 8 (b) and fasten the unfavorable condition of generation in the position of lens and sensor, in Fig. 8 (c) expression by the image blur correcting unit that possesses lens and the sensor situation of blur correction mode how.
Shown in Fig. 8 (a), in when, hand not taking place trembling, the optical axis of the optical axis of lens and the sensitive surface of sensor (sensor cover) consistent with each other on correct position the imaging body light that is taken.To this, tremble if hand takes place, then shown in Fig. 8 (b), lens and sensor cover rotate to the direction of arrow, the optical axis of lens and the light shaft offset of sensor cover and can not be on correct position the imaging body light that is taken.
So, shown in Fig. 8 (c), on the mobile devices such as mobile phone of band camera, load above-mentioned image blur correcting unit, and when hand taking place tremble in when photography, by carrying out as gyrostatic action at the image blur correcting unit that forms by lens and sensor, thereby the body light that is taken always images on the correct position of sensor cover.So, if image blur correcting unit is loaded in the mobile devices such as mobile phone of band camera, even mobile device rotates because of shooting operation, the posture of image blur correcting unit always remains on the posture before the shooting operation, therefore can carry out suitable photography.
But, when the above-mentioned image blur correcting unit that the applicant is proposed is loaded in mobile device, preferably the physical dimension of the swing range that comprises the maintenance module that image blur correcting unit possesses is clearly set.So,, can consider to cover all members such as maintenance module that above-mentioned image blur correcting unit possesses with sealing cover for clear and definite physical dimension.Yet, in the above-mentioned ambiguity correction unit that the applicant proposed, owing to be along the periphery that keeps module, respectively by driving the formation that keeps module to the 1st drive point and the 2nd drive point that the 1st different mutually directions and the 2nd direction are left respectively from above-mentioned axle point, therefore, if consider to keep the swing range of module, in any case that the size of sealing cover all will become is big.If dwindle the swing range of this maintenance module, then can dwindle sealing cover, but the image blur correcting scope determined with the swing range of this maintenance module, therefore, become and dwindle the result that this swing range just equals limited images ambiguity correction performance.
The flat 7-274056 communique of [patent documentation 1] patent disclosure
[patent documentation 2] patent disclosure 2005-326807 communique
No. 2612371 communique of [patent documentation 3] patent
Summary of the invention
The present invention in view of the above problems, its purpose is, though provide a kind of size of sealing cover little, also can guarantee to keep in the same old way the swing range of module image blur correcting unit, possess the image blur compensation device of this image blur correcting unit, the mobile device that possesses the camera of this image blur compensation device and possess this camera head.
In order to achieve the above object, image blur correcting unit of the present invention, a kind of image blur correcting unit is characterized in that, possesses: keep module, it keeps lens;
Supporting member, it has the support portion, and described support portion is by means of any the axle point as the periphery that keeps module along this, shakes to any direction and supports described maintenance module freely;
Two driving mechanisms, it is respectively by along the periphery of described maintenance module, the 1st drive point and the 2nd drive point that leave to the 1st different mutually directions and the 2nd direction respectively from described axle point, drive this maintenance module, described two driving mechanisms, constitute by the 1st driving mechanism and the 2nd driving mechanism, described the 1st driving mechanism makes described maintenance module around the 1st rotation that connects described axle point and described the 2nd drive point by described the 1st drive point, described the 2nd driving mechanism makes described maintenance module around the 2nd rotation that connects described axle point and described the 1st drive point by described the 2nd drive point
Described maintenance module has following such shape: promptly be maintained at the part of diagonal side of described axle point of optical axis face, that clip these lens of the body light inlet side that is taken on the lens of this maintenance module, descend to the direction of leaving from the body that is taken.
Image blur correcting unit according to the invention described above, the part of the diagonal side of the described axle point of optical axis face, that clip these lens of the body light inlet side that is taken on the above-mentioned lens that are maintained at this maintenance module descends to the direction of leaving from the body that is taken.Therefore, and compare so far, can obtain to dwindle the effect in the space when keeping module to shake.Even this thing means the size of dwindling sealing cover and also can guarantee the fact of swing range till now.
That is, if above-mentioned image blur correcting unit also possesses sealing cover, described sealing cover covers described maintenance module, described supporting member and described driving mechanism, and determines the profile of this image blur correcting unit then can make the size of its sealing cover littler than in the past.
If the invention described above is useful in patented claim 2007-035341 number, then obtain more superior effect.
That is, described the 1st drive point and described the 2nd drive point are formed at the line segment that connects the 1st drive point and described axle point and are connected line segment that the 2nd drive point and described axle put mutually with each position of 90 angular cross of spending roughly.
And be preferably, above-mentioned the 1st driving mechanism possesses:
The 1st arm, described the 1st drive point is supported in its rotation freely;
The 1st coil, it is maintained at described the 1st arm, accepts the effect of magnetic force and energising and produces the driving force of optical axis direction, makes the 1st arm drive described the 1st drive point along optical axis direction;
The 1st magnet, it is maintained on the described supporting member, with respect to the optical axis horizontal extension, and to described the 1st coil effect magnetic force;
The 1st guiding elements, it is fixed on the described supporting member, and guides described the 1st arm, so that the 1st application point described the 1st arm, that give driving force to described the 1st drive point moves to optical axis direction,
Described the 2nd driving mechanism possesses:
The 2nd arm, described the 2nd drive point is supported in its rotation freely;
The 2nd coil, it is maintained at described the 2nd arm, and accepts the effect of magnetic force and energising and produce the driving force of optical axis direction, makes the 2nd arm drive described the 2nd drive point along optical axis direction;
The 2nd magnet, it is maintained on the described supporting member, with respect to the optical axis horizontal extension, and to described the 2nd coil effect magnetic force;
The 2nd guiding elements, it is fixed on the described supporting member, and guides the 2nd arm, so that the 2nd application point described the 2nd arm, that give driving force to described the 2nd drive point moves along optical axis direction.
And, be preferably,
Also possess:
The 1st sensor, it is supported by described the 1st arm, and the variation of the magnetic force of accepting from described the 1st magnet that the 1st arm causes along optical axis direction mobile when being driven described the 1st drive point by the 1st arm detects,
The 2nd sensor, it is supported by described the 2nd arm, and the variation of the magnetic force that the 2nd arm causes along moving of optical axis direction when being driven described the 2nd drive point by described the 2nd arm accepts from described the 2nd magnet detects.
And, also can be that described maintenance module keeps lens, and keeps catching the imageing sensor that is taken body light and generates picture signal.
And, being preferably, described maintenance module has spherical protuberance on described axle point, and described supporting member has the spherical concave surface that bears this protuberance in described support portion.
And, be preferably, described maintenance module has spherical protuberance respectively at described the 1st drive point and described the 2nd drive point, described the 1st arm and described the 2nd arm, has each spherical recess respectively at described the 1st application point and described the 2nd application point, so that bear each protuberance of purchasing respectively at described the 1st drive point and described the 2nd drive point, described the 1st arm and described the 2nd arm are given driving force by described recess to described each protuberance.
For reaching the image blur compensation device of the present invention of above-mentioned problem, possess any the ambiguity correction unit in the above-mentioned image blur correcting unit, it is characterized in that also possessing:
Fuzzy test section, it detects ambiguity;
Fuzzy control portion, it makes described two driving mechanisms rotation drive described maintenance module based on the testing result of described fuzzy test section.
Reach the camera of the present invention of above-mentioned problem, it is characterized in that: possess above-mentioned image blur compensation device, described maintenance module keeps described lens and then also keeps catching the imageing sensor that is taken body and generates picture signal,
This camera by the action of this image blur compensation device, generates the fuzzy picture signal that has been lowered.
Reach the mobile device of the present invention of above-mentioned problem, it is characterized in that, possess above-mentioned camera.
As described above, though can be implemented in the little image blur correcting unit that also can guarantee to keep the swing range of module of a kind of size of sealing cover, possess the image blur compensation device of this image blur correcting unit, the mobile device that possesses the camera of this image blur compensation device and possess this camera head in the same old way.
Description of drawings
Fig. 1 is the stereoscopic figure that is suitable for the mobile phone of 1 embodiment of the present invention.
Fig. 2 is the piece figure that the inside of the mobile phone 100 of presentation graphs 1 constitutes.
Fig. 3 is the exploded perspective view of image blur correcting unit.
Fig. 4 is the figure of expression by the state behind each represented member assembling image blur correcting unit of the exploded perspective view of Fig. 3.
Fig. 5 is that explanation keeps the shape of module and keeps the figure of the action of module.
Among the figure: 100-mobile phone, 101-liquid crystal panel, 102-mouth piece, 103a-the 1st antenna, 104-selector button, 105-button, the 106-receiving mouth, 107-confirming button, 108-power knob, 109a-the 2nd antenna, 112-CCD, 113-A/D converter section, the 120-interface portion, 121-microphone, 122-loudspeaker, 130-imports controller, 140-picture signal handling part, 150-video encoder, the 160-image display device, 170-storer, 180-CPU, the various switches of 181-, 200-image blur correcting unit, 100a-lens, the 201-sealing cover, 202-keeps module, 203A, the 203B-substrate, 204A, the 204B-yoke, 2051,2052, the 2053-guiding elements, FR1, the FR2-flexible base, board, ARM1, the ARM2-arm, PB-axle point (spherical protuberance), D1-the 1st drive point (spherical protuberance), D2-the 2nd drive point (spherical protuberance).
Embodiment
Below, with reference to the description of drawings embodiments of the present invention.
Fig. 1 is the stereoscopic figure that is suitable for the mobile phone of 1 embodiment of the present invention.
Prior figures at Fig. 1 (A) expression mobile phone 100.Front at mobile phone 100 is equipped with: the liquid crystal panel 101 of display menu picture, photographs etc.; The sound that is equipped with loudspeaker (with reference to Fig. 2) and is used for sending from loudspeaker in inside is released to the receiving mouth 102 in space; Select various functions or when photographing as the employed selector button 104 of shutter release button; Be used to import the button 105 of telephone number; Be equipped with microphone (with reference to Fig. 3) in inside and be used for sound is conveyed to the mouth piece 106 of microphone; Determine the confirming button 107 of telephone number that the user imports etc.; Power knob 108; And be used for not passing through closely radio communication transmission of usefulness or the 2nd antenna 109a of reception image or address information etc. by telecommunication bureau.
Back view at Fig. 1 (B) expression mobile phone 100.The 1st antenna 103a and the photographic lens 100a that is used for sending or receiving data such as sound or mail be equipped with by telecommunication bureau at the back side of mobile phone 100.This photographic lens 100a is maintained at image blurring (Block レ) described later correcting unit.
Fig. 2 is the piece figure that the inside of the mobile phone 100 of presentation graphs 1 constitutes.
Inside at mobile phone 100, possess: various switches 181 such as selector button 104 that image blur correcting unit 200, A/D (Analog/Degital) converter section 113, microphone 121, loudspeaker 122, interface portion the 120, the 1st antenna 103a, the 1st transmission acceptance division 103, input controller 130, picture signal handling part 140, video encoder 150, image display device the 160, the 2nd antenna 109a, the 2nd transmission receiving portion 109, storage part 170, CPU180, media controller 190 and Fig. 1 represent or button 105, and, also be connected with recording medium 190a.In present embodiment, constitute an example of the image blur compensation device described in the present invention by image blur correcting unit 200, CPU180, gyro sensor 182, driver DR, this image blur compensation device and input controller 130, picture signal handling part 140, video encoder 150, image display device 160, liquid crystal panel 101, media controller 190, recording medium 190a constitute an example of camera of the present invention.
CPU180 passes on to the various key elements of mobile phone shown in Figure 2 100 and handles indication, and controls various key elements.For example, if under the state that the photograph mode of photographing is set, press the selector button 104 of Fig. 1, then pass on indication to the CCD112 that image correction unit 200 possesses from CPU180, simultaneously, pass on indication for driver DR1, DR2 so that the maintenance module (aftermentioned) that image blur correcting unit 200 possesses is shaken to eliminating the direction of being trembled by gyro sensor 182 detected hands, tremble simultaneously and photograph thereby proofread and correct hand.To the formation of this image blur correcting unit 200, describe in detail in the back.
The selector button 104 of Fig. 1 (A) is pressed, and CPU180 sets electronic shutter and begin photograph processing for the CCD112 in the image blur correcting unit 200.
It is detected and be notified to CPU180 by gyro sensor 182 that hand during at this moment, by select button 104 is trembled direction.CPU180 accepts the testing result of this gyro sensor 182 to driver DR1, DR2 notice orientation, make driver DR1, DR2 drive the coil (aftermentioned) in the image blur correcting unit 200, with shake maintenance module (aftermentioned) limit in the image blur correcting unit 200 being shaken, photographs in the limit.Hand during so by selector button 104 is trembled and is corrected, thereby non-jitter ground is at the CCD112 imaging body light that is taken.
And CCD112 accepts the body light that is taken that comes by photographic lens 100a in electronic shutter button in the time, and will read as being taken the body signal of simulating signal based on the body image that is taken of the body light that is taken.Converted to the digital photograph images data at the body signal that is taken that this CCD112 generated by A/D converter section 113, the photographic image data after the conversion is transported to picture signal handling part 140 by input controller 130.
At picture signal handling part 140, the Flame Image Process that the adjusting, γ that view data is carried out the RGB level adjusted etc., and, the view data after the Flame Image Process is compressed processing.View data after the compression temporarily is sent to storer 170.
At storer 170, store the program of in this mobile phone 100, carrying out, comprising: as the fast SDRAM of the employed storage speed of intermediate buffer; Store the data of the data that various menu screens use, setting content of user etc. and preserve memory-aided SRAM; Store the VRAM of compressed view data.VRAM is divided into a plurality of fields, and view data is stored in a plurality of fields successively, and stored view data is read by video encoder 150 or media controller 190 successively.
And, use the button 105 input telephone numbers shown in Fig. 1 (A), press confirming button 107, then telephone number is set and begins and the communicating by letter of the other side's device.At this moment, from the communication information of CPU180 to the telephone number of the 1st transmission acceptance division 103 reception and registration mobile phones 100 and the telephone number of being imported etc., and the communication information is converted into electric wave and is communicated to antenna 103a, and sends electric wave from antenna 103a.The common antenna (not shown) of the each place of the electric wave that sends from the 1st antenna 103a by being arranged on buildings or electric post etc. passes to telecommunication bureau, and sets up the connection of the other side's device of being furnished with designated telephone number in telecommunication bureau.
If establishment is connected with the other side's device, the sound that the user sends to mobile phone 100 concentrates on microphone 121, this sound that is collected converts the electric wave of representing speech data in interface portion 120, sends to the other side's device by the 1st the 1st antenna 103a that sends acceptance division 103.And the voice electric wave by the 1st antenna 103a receives converts speech data at interface 120, sounds from loudspeaker 122.The 1st sends acceptance division the 103, the 1st antenna 103a, not only can send the reception speech data, can also replace telephone number to use addresses of items of mail to send and receive the mail data of expressing (table わ The) mail.Receive with the 1st antenna 103a, and be stored in storer 170 by the mail data of datumization by input controller 130 at the 1st transmission acceptance division 103.
In addition, at this mobile phone 100, with the communication interface that is used for communicating by letter (the 1st sends acceptance division the 103, the 1st antenna 103a) body in addition, possess not by telecommunication bureau by the wireless communication interface that closely communicates (the 2nd transmission acceptance division the 109, the 2nd antenna 109a) with radio communication by the other side's device of telecommunication bureau and other mobile phones etc.As the communication interface that wireless near field communication is used, can be suitable for infrared communication or blue pressure (Bluetooth) etc.In present embodiment, be suitable for infrared communication as communication interface, if receive from directly transmission and next infrared ray such as other mobile phones, then based on ultrared electric signal that this received with the 2nd antenna 109a, it is picked to send acceptance division 109 the 2nd, converts numerical data to.On the contrary, when external device (ED) sent data, data were sent to the 2nd and send acceptance division 109, and these data send acceptance division 109 the 2nd and convert electric wave to, sent from the 2nd antenna 109a.
If the infrared ray with the 2nd antenna 109a receives presentation video then sends acceptance division 109 the 2nd and is converted into view data based on ultrared electric signal.The view data that is converted, identical with photographic image data, be sent to image display device 160, the image of presentation video data is displayed on liquid crystal panel 101, perhaps is stored in recording medium 190a by media controller 190.
Basic as the above-mentioned formation of mobile phone 100.
Then, describe the formation of image ambiguity correction unit 200 in detail, the part of the camera that this image blur correcting unit formation mobile phone 100 is possessed.
Fig. 3 is the exploded perspective view of image blur correcting unit.And Fig. 4 is the figure of image blur correcting unit 200 behind each member shown in the exploded perspective view of expression assembly drawing 3.
Be equivalent to the side that is taken in Fig. 3, Fig. 4 lower-left.
In be taken side successively the state representation separately to be decomposed of Fig. 3: sealing cover 201 from the lower-left; Keep module 202; Picture signal transmits uses flexible base, board FR1; Flexible base, board FR2 for each coil electricity of the substrate 203B both sides that will be formed at the substrate 203A that extends along the 1st direction of Fig. 3 and extend along the 2nd direction of figure; Maintenance is formed with a pair of arm ARM1, the ARM2 of substrate 203A, the 203B of coil respectively; With be formed on each substrate 203A, 203B on the mode faced mutually of coil, to the N utmost point and S utmost point magnet MAG1 side by side, Japanese " コ " word shape yoke (ヨ one) 204A, the 204B that MAG2 keeps; And supporting member 205, it moves and supports two arms freely, and two yoke 204A, 204B are separately fixed at the face that extends to the 1st direction and the 2nd direction.Assembling then becomes shape shown in Figure 4 if so.
At first, with reference to Fig. 3 formation is described.
Show the supporting member 205 of Japanese " く " word shape in the rightmost side of Fig. 3, the supporting member 205 of described Japanese " く " word shape supports two driving mechanisms that keep module 202 to shake in order to make.To support two driving mechanisms that keep module to shake in order making at this supporting member 205, and to shake and supporting the maintenance module freely.
3 positions at this supporting member 205 are provided with guiding elements 2051,2052,2053, and described guiding elements 2051,2052,2053 is inserted respectively and led at the hole at the both ends that are arranged at above-mentioned two arm ARM1, the ARM2 H1 of portion, H2, H3, H4.These guiding elements 2051～2053 are arranged at each apex of the supporting member 205 of " Japanese " く " " the word shape shape that has Japanese respectively, insert hole H1 and H3 in the hole at both ends of the arm ARM1, the ARM2 that are connected with both sides together at the guiding elements 2051 of central authorities.
Promptly, an arm ARM1 in two is in the guiding elements 2051 on summit at center of Japanese " く " word shape of supporting member 205 and the guiding elements 2052 on summit of end side that is in the opposing party of Japanese " く " word shape and inserts logically, and another root arm ARM2 is in the guiding elements 2051 on summit at center of Japanese " く " word shape and the guiding elements 2053 on summit that is in the opposing party's end side and inserts and lead to.In addition, though not shown, be respectively arranged with the recess that cooperates with the spherical protuberance that keeps module side in the maintenance module side of the side's of these arms ARM1, ARM2 end side (position of porose H2, hole H4).And the maintenance module side at the central part of Japanese " く " the word shape of supporting member 205 is useful on and supports the support portion that keeps module 202, is provided with recess in this support portion.
And, face that to be the center on the summit with the central authorities of Japanese " く " the word shape of supporting member 205 extend along the 1st direction of Fig. 3 and the face that extends along the 2nd direction, yoke 204A, the 204B of Japanese " コ " the word shape that is adhesively fixed respectively form.Because yoke 204A, the 204B of these Japanese " コ " word shape are adapted to the side of its opening towards the substrate 203A that is formed with coil, 203B place, therefore, quilt is set to making and is accommodated substrate 203A, 203B abreast from separately open side and magnet MAG1, MAG2.At this each substrate 203A, 203B, be connected with for flexible base, board FR2 to the coil electricity on the substrate.In addition, possess Hall element at the substrate 203A, the 203B that form this coil, this Hall element is used to detect the position of the maintenance module 202 of shaking corresponding to the action of arm ARM1, ARM2.
As mentioned above, be provided with in maintenance module 202 sides of the apex of the central authorities of the supporting member 205 of Japanese " く " word shape and cooperate with the spherical protuberance that keeps module 202 and become the recess that supports the support portion that keeps module 202, therefore, if keep the protuberance PB of module 202 to cooperate with this recess, and move two arm ARM1 that support freely at beared part 205, the spherical recess that is provided with respectively on the ARM2, cooperate with the protuberance of the 1st drive point D1 that keeps module 202 and the protuberance of the 2nd drive point D2, then as shown in Figure 4, keep module 202 to shake and be supported on supporting member 205 freely.
In this example, by supporting member 205, arm ARM1, be formed with coil substrate 203A, paste to pay the example that the yoke 204A that magnet MAG1 is arranged constitutes the 1st driving mechanism of the present invention, by supporting member 205, arm ARM2, be formed with coil substrate 203B, paste the example that the yoke 204B that pays magnet MAG2 constitutes the 2nd driving mechanism of the present invention.The 1st driving mechanism makes by the 1st drive point D1 and keeps the 1st spool rotation of module 202 around coupling shaft point PB and the 2nd drive point D2, simultaneously, the 2nd driving mechanism makes by the 2nd drive point D2 and keeps the 2nd spool rotation of module 202 around coupling shaft point PB and the 1st drive point D1, keeps module to shake thereby make.
In addition, in the present embodiment, be provided with sealing cover 201 for clear and definite physical dimension, therefore, be of a size of purpose to dwindle sealing cover, keep module 202, with sealing cover 201 mutually in the face of the part of diagonal side optical axis face, that clip lens 100a, axle point PB of a side, be formed shape to the direction decline of leaving from sealing cover 201.The effect of this shape below is described.
In addition, at Fig. 3, in order to represent the 1st drive point D1 and the 2nd drive point D2, expression has bar-shaped member 2021A, the 2021B of spherical protuberance and is inserted logical spring 2022A, 2022B by these bar-shaped members 2021 respectively.Each spring 2022 is to have to make each two arm ARM1, ARM2 keep the member of the function of motionless state respectively when the coil no power, each spring has following function: promptly when the coil no power by the spring angular force with protuberance (the 1st drive point D1, the 2nd drive point D2) by the recess that is pressed in the arm side, thereby arm is still on the position when cutting off energising.
And, in this embodiment, show lens CCD112 in addition and also remain on the formation that keeps module 202, therefore, on the maintenance module 202 of shaking, be connected with picture signal transmission flexible base, board FR1.The end of this flexible base, board FR1 is connected the sensor base plate PCB that CCD112 is installed, the part of extending at least at first from this sensor base plate PCB is connected to, from keeping module 202 laterally, with respect to the 1st direction of coupling shaft point PB and the 1st drive point D1 and the direction extension of this both sides' inclination of the 2nd direction of coupling shaft point PB and the 2nd drive point D2.So constitute, shake and then be difficult to be conveyed to flexible base, board.
Arrive the explanation here, this and the explanation content much at one that is proposed for patented claim 2007-035341 number about image blur correcting unit 200.
In the present embodiment, except that patented claim 2007-035341 number formation, also descended the time, therefore its formation has been described for the shape that keeps module.
Fig. 5 is that explanation keeps the shape of module and keeps the figure of the action of module.
Remove sealing cover 201 shown in Figure 4 in Fig. 5 (a) expression and see the figure that keeps module 202 from oblique upper.The figure of the state of the maintenance module 202 when the following direction from Fig. 5 (a) when Fig. 5 (b) is illustrated in the installation sealing cover is seen non-action, the figure of the state of the maintenance module 202 the when lower side from Fig. 5 (a) when Fig. 5 (c) is illustrated in the installation sealing cover is seen action.
Shown in Fig. 5 (a), in the present embodiment, for diminishing also can make, the size of the sealing cover 201 of realizing promptly being used in clear and definite physical dimension keep module normally to move, and make keep module 202, with sealing cover 201 mutually in the face of the part 202P of diagonal side optical axis face, that clip lens 100a, axle point PB of a side, form shape to the direction decline of leaving from sealing cover 201.
For this reason, make the diagonal side of a putting part of maintenance module 202 shake even be in maintenance module 202 actions of the position shown in Fig. 5 (c) with the maximum magnitude in the swing range up to now, shown in Fig. 5 (c), keep module 202 also can normally move.In the past, if in statu quo keep swing range then can not dwindle sealing cover, but according to the present invention, because the maximum of having sought the maintenance module is shaken the miniaturization of portion, therefore, even dwindled sealing cover, also can be to shake the maintenance module with same up to now swing range.
As mentioned above, realized that though the size of sealing cover is little, also can guarantee to keep in the same old way the swing range of module image blur correcting unit, possess the image blur compensation device of this image blur correcting unit, the mobile device that possesses the camera of this image blur compensation device and possess this camera head.
Claims (11)
1. an image blur correcting unit is characterized in that,
Possess:
Keep module, it keeps lens;
Supporting member, it has the support portion, and described support portion is by means of any the axle point as the periphery that keeps module along this, shakes to any direction and supports described maintenance module freely;
Two driving mechanisms, it is respectively by along the periphery of described maintenance module, the 1st drive point and the 2nd drive point that leave to the 1st different mutually directions and the 2nd direction respectively from described axle point, drive this maintenance module, described two driving mechanisms, constitute by the 1st driving mechanism and the 2nd driving mechanism, described the 1st driving mechanism makes described maintenance module around the 1st rotation that connects described axle point and described the 2nd drive point by described the 1st drive point, described the 2nd driving mechanism makes described maintenance module around the 2nd rotation that connects described axle point and described the 1st drive point by described the 2nd drive point
Described maintenance module has following such shape: promptly be maintained at the part of diagonal side of described axle point of optical axis face, that clip these lens of the body light inlet side that is taken on the lens of this maintenance module, descend to the direction of leaving from the body that is taken.
2. image blur correcting unit according to claim 1 is characterized in that,
Also possess sealing cover, described sealing cover covers described maintenance module, described supporting member and described driving mechanism, and determines the profile of this image blur correcting unit.
3. image blur correcting unit according to claim 1 is characterized in that,
Described the 1st drive point and described the 2nd drive point are formed at the line segment that connects the 1st drive point and described axle point and are connected line segment that the 2nd drive point and described axle put mutually with each position of 90 angular cross of spending roughly.
4. image blur correcting unit according to claim 1 is characterized in that,
Described the 1st driving mechanism possesses:
The 1st arm, described the 1st drive point is supported in its rotation freely;
The 1st coil, it is maintained at described the 1st arm, accepts the effect of magnetic force and energising and produces the driving force of optical axis direction, makes the 1st arm drive described the 1st drive point along optical axis direction;
The 1st magnet, it is maintained on the described supporting member, with respect to the optical axis horizontal extension, and to described the 1st coil effect magnetic force;
The 1st guiding elements, it is fixed on the described supporting member, and guides described the 1st arm, so that the 1st application point described the 1st arm, that give driving force to described the 1st drive point moves to optical axis direction,
Described the 2nd driving mechanism possesses:
The 2nd arm, described the 2nd drive point is supported in its rotation freely;
The 2nd coil, it is maintained at described the 2nd arm, and accepts the effect of magnetic force and energising and produce the driving force of optical axis direction, makes the 2nd arm drive described the 2nd drive point along optical axis direction;
The 2nd magnet, it is maintained on the described supporting member, with respect to the optical axis horizontal extension, and to described the 2nd coil effect magnetic force;
The 2nd guiding elements, it is fixed on the described supporting member, and guides the 2nd arm, so that the 2nd application point described the 2nd arm, that give driving force to described the 2nd drive point moves along optical axis direction.
5. image blur correcting unit according to claim 4 is characterized in that,
Also possess:
The 1st sensor, it is supported by described the 1st arm, and the variation of the magnetic force of accepting from described the 1st magnet that the 1st arm causes along optical axis direction mobile when being driven described the 1st drive point by the 1st arm detects,
The 2nd sensor, it is supported by described the 2nd arm, and the variation of the magnetic force that the 2nd arm causes along moving of optical axis direction when being driven described the 2nd drive point by described the 2nd arm accepts from described the 2nd magnet detects.
6. image blur correcting unit according to claim 1 is characterized in that,
Described maintenance module keeps lens, and keeps catching the imageing sensor that is taken body light and generates picture signal.
7. image blur correcting unit according to claim 3 is characterized in that,
Described maintenance module has spherical protuberance on described axle point, described supporting member has the spherical concave surface that bears this protuberance in described support portion.
8. image blur correcting unit according to claim 3 is characterized in that,
Described maintenance module has spherical protuberance respectively at described the 1st drive point and described the 2nd drive point, described the 1st arm and described the 2nd arm, has each spherical recess respectively at described the 1st application point and described the 2nd application point, so that bear each protuberance of purchasing respectively at described the 1st drive point and described the 2nd drive point, described the 1st arm and described the 2nd arm are given driving force by described recess to described each protuberance.
9. an image blur compensation device possesses each described image blur correcting unit in the claim 1 to 8, it is characterized in that,
Also possess:
Fuzzy test section, it detects ambiguity;
Fuzzy control portion, it makes described two driving mechanisms rotation drive described maintenance module based on the testing result of described fuzzy test section.
10. a camera is characterized in that,
Possess the described image blur compensation device of claim 9, described maintenance module keeps described lens and then also keeps catching the imageing sensor that is taken body and generates picture signal,
This camera by the action of this image blur compensation device, generates the fuzzy picture signal that has been lowered.
11. a mobile device is characterized in that,
Possesses the described camera of claim 10.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007159265A JP2008310171A (en) | 2007-06-15 | 2007-06-15 | Image blur correction unit, image blur correction device, photographing device and portable apparatus |
| JP2007159265 | 2007-06-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101324737A true CN101324737A (en) | 2008-12-17 |
Family
ID=40188330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101082516A Pending CN101324737A (en) | 2007-06-15 | 2008-06-05 | Image blur correction unit, image blur correction apparatus and imaging apparatus |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2008310171A (en) |
| CN (1) | CN101324737A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112513730A (en) * | 2018-07-27 | 2021-03-16 | 富士胶片株式会社 | Image shake correction device and imaging device |
-
2007
- 2007-06-15 JP JP2007159265A patent/JP2008310171A/en not_active Withdrawn
-
2008
- 2008-06-05 CN CNA2008101082516A patent/CN101324737A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112513730A (en) * | 2018-07-27 | 2021-03-16 | 富士胶片株式会社 | Image shake correction device and imaging device |
| CN112513730B (en) * | 2018-07-27 | 2022-06-03 | 富士胶片株式会社 | Image shake correction device and imaging device |
| US11740484B2 (en) | 2018-07-27 | 2023-08-29 | Fujifilm Corporation | Image shake correction device and imaging device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2008310171A (en) | 2008-12-25 |
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