CN101207343A - Driving apparatus and image pickup apparatus - Google Patents
Driving apparatus and image pickup apparatus Download PDFInfo
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- CN101207343A CN101207343A CNA2007101957689A CN200710195768A CN101207343A CN 101207343 A CN101207343 A CN 101207343A CN A2007101957689 A CNA2007101957689 A CN A2007101957689A CN 200710195768 A CN200710195768 A CN 200710195768A CN 101207343 A CN101207343 A CN 101207343A
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Abstract
The present invention provides a driving apparatus and an image pickup apparatus, the driving apparatus has miniature drive force and high efficiency. An X-axis transducer (320x) generating elliptical vibration is used as driving source, alternatively on side of a mobile body (311x), according to separation construction of X frame (301) forming desired size as mobile object and a sliding body (330x) small than the X frame (301), both of them are fixed and integrated, by a slicing plate (332x) and a bearing (331x) on the small sliding body (330x), driving force transmission function and mobile direction guide function are collected, a large X frame (301) and a sliding body (330x) are integrated to only carry out follow movement, thus high efficiency of driving force transmission can be carried out only by forming rigidity on the sliding body (330x) side, alternatively, the high rigidity like on the sliding body (330x) side is unnecessary to the X frame (301) side, form of desired size by adopting light quality material is satisfied, and special guide mechanism for restraining the mobile direction of the X frame (301) is unnecessary.
Description
Technical field
The present invention relates to utilize the elliptical vibration of oscillator to drive moving body and make its drive unit that moves by predetermined direction and the camera heads such as digital camera that carry out jitter correction by this drive unit.
Background technology
In the past, as camera head, camera was for example arranged with image shake correction function.The image shake correction function that has as camera, known have following hand to tremble calibration function: the tilt shake of (ヨ one) direction of shake vibration and the camera that uses shake detecting unit such as angular-rate sensor to detect on the camera (the ピ Star チ) direction that has a down dip is vibrated, according to the dither signal that is detected, on the direction of offsetting shake with the camera axis plane orthogonal in along continuous straight runs and vertical direction a part or the imaging apparatus of dollying optical system independently respectively, the shake of proofreading and correct the image on the shooting face of imaging apparatus thus.
Tremble the hand of calibration function trembles in the aligning gear at the such hand of realization, tremble and use driver element in order to proofread and correct hand, this driver element with the camera axis plane orthogonal in a part of camera lens or the imaging apparatus itself of along continuous straight runs and vertical direction travelling shot camera lens.This driver element is trembled and is moved owing to following hand, so require to have the height responsiveness, accurately drive (small driving) even and cut off the electricity supply and still can keep self retentivity of movable body position.
For such requirement, in patent documentation 1, disclose and used the hand of impact actuator to tremble aligning gear.Disclose vibration wave linear motor in the patent documentation 2 in addition, this vibration wave linear motor is pushed with respect to axle by two oscillators that the surface produced elliptical vibration, make the axle with respect to oscillator by Linear Driving.Adopt following structure in the driving mechanism of this vibration wave linear motor: cylindrical shaft relatively moves because of oscillator, and the projection that is arranged on the axle drives the camera lens frame, and the camera lens frame is by being set to the guide guiding moving direction that the camera lens frame uses and moving.
[patent documentation 1] TOHKEMY 2005-331549 communique
[patent documentation 2] TOHKEMY 2006-67712 communique
But, tremble in the aligning gear as the hand of driving mechanism in the impact actuator shown in the use patent documentation 1, can access height responsiveness, accurate driving and self retentivity, but owing to utilize inertia force to drive, can not be so exist by the small-sized problem that obtains high output.For example in camera etc., the front of imaging apparatuss such as CCD and membrane filter etc. are integrated, are not suitable for the situation of bigger, heavy image unit as driven object.Need strengthen inertia mass in order to increase actuating force, make driving mechanism become big.In addition, according to the principle that the inertia force by overcome friction drives, friction slip certainly leads to energy loss, also has the unfavorable condition of the essence that not too can raise the efficiency.
On the other hand, utilized the so-called vibration wave motor of the elliptical vibration of oscillator to be fit to the efficient height, to obtain the driving of the image unit etc. of big actuating force and bigger, weight easily.But, in order to produce big actuating force, must use bigger power to make oscillator by being pressed on the moving body, if the rigidity of moving body is low, then moving body can (vibration amplitude of vibration wave motor be that a few μ m are so little originally because of the pressing force deflection, even so the deflection about a few μ m also can become problem), make the inefficiency of driving mechanism, can produce under extreme case that actuating force is absorbed and the problem of not moving.In order to prevent that such problem from taking place, shown in patent documentation 2, forming the moving body that makes direct contact oscillator is that columned axle improves rigidity, makes the camera lens frame that becomes the actual object that moves adopt the structure of coming transmission of drive force to move it by projection.In such structure, the guide that the actuating force transmission mechanism of camera lens frame one side, camera lens frame one side are used etc. need other approach, the problem that exists mechanism to become complexity and become large-scale, heavy.Based on this point, constituting mobile object self rigidity such as making the camera lens frame uprises, can directly drive by the elliptical vibration of oscillator, but when coming transmission of drive force, the elliptical vibration at the oscillator by having the natural resonance frequency that is determined by shape, material etc. produces intrinsic unfavorable conditions such as vibration, must carry out needed above maximization, weightization, so just run counter to the requirement of miniaturization.
Summary of the invention
The present invention makes in view of foregoing, and its objective is provides a kind of small-sized, that actuating force is bigger, high efficiency drive unit and camera head.
Achieve the goal in order to solve above-mentioned problem, the drive unit that the present invention relates to is characterised in that to have: oscillator, and it makes drive division produce elliptical vibration by applying predetermined all wave voltages; Fixed part, it has the maintaining part that keeps described oscillator; And moving body, its elliptical vibration by described oscillator drives, and moves with respect to described fixed part, and described moving body comprises: the 1st moves body, and it forms wishes size; And the 2nd move body, it has that described drive division is pressed and the sliding part that contacts, with the opposition side that is arranged on this sliding part, moving direction by engaging the directed section that is directed with guide portion that described fixed part is had, the 2nd rigidity that moves body moves the body height than the described the 1st, and, form to such an extent that to move body than the described the 1st little, and be fixed on the 1st and move on the body.
In addition, the drive unit that the present invention relates to is characterised in that, in foregoing invention, with the described the 2nd move that the body one moves the described the 1st move the described guide portion and described 2nd of body by described fixed part and move engaging between the directed section of body and guide moving direction.
And the drive unit that the present invention relates to is characterised in that in foregoing invention, the described the 1st moves body is formed by resin material, aluminium or magnesium.
And, the drive unit that the present invention relates to is characterised in that, in foregoing invention, this drive unit has bullet and pushes away the unit, this bullet pushes away the unit to carry out bullet to above-mentioned oscillator and pushes away, and makes to move body and described oscillator is pushed from the opposition side of described guide portion described drive division to described sliding part across the described the 2nd.
And, the drive unit that the present invention relates to is characterised in that, in foregoing invention, described guide portion and described directed section have the rotor that is arranged in 1 row along moving direction, on the position of the direction different away from described guide portion with moving direction, a rotor with location usefulness, this rotor is provided in the described the 1st and moves between body and the described fixed part under the clamp position that plays thrust.
And the drive unit that the present invention relates to is characterised in that to have: the 1st oscillator, and it makes drive division produce elliptical vibration by applying predetermined all wave voltages; Fixed part, it has the 1st maintaining part that keeps described the 1st oscillator; The 1st moving body, it pushes the described drive division of described the 1st oscillator, and moving direction is restricted to the 1st direction by the guide portion that described fixed part had, and the 1st moving body is driven by the elliptical vibration of described the 1st oscillator, moves along the 1st direction with respect to described fixed part; The 2nd oscillator, it is maintained in described the 1st moving body with the 2nd maintaining part, makes drive division produce elliptical vibration by applying predetermined all wave voltages; And the 2nd moving body, it pushes the described drive division of described the 2nd oscillator, and the guide portion that moving direction is had by described the 1st moving body is restricted to 2nd direction different with the 1st direction, the 2nd moving body is driven by the elliptical vibration of described the 2nd oscillator, move along the 2nd direction with respect to described the 1st moving body, at least one moving body in described the 1st, the 2nd moving body comprises: the 1st moves body, and it forms wishes size; And the 2nd move body, it has the sliding part that described drive division contacts, with the opposition side that is arranged on this sliding part, moving direction by engaging the directed section that is directed with described guide portion, the 2nd rigidity that moves body moves the body height than the described the 1st, and, form to such an extent that to move body than the described the 1st little, and be fixed on the 1st and move on the body.
And, the camera head that the present invention relates to has the microcomputer of this camera head molar behavior of control, with the camera axis plane orthogonal in, on the 1st direction of quadrature and the 2nd direction, the imaging apparatus displacement is moved, with compensate for jitter, it is characterized in that this camera head has: the 1st oscillator, it makes drive division produce elliptical vibration according to the indication of described microcomputer by applying predetermined all wave voltages; Fixed part, it has the 1st maintaining part that keeps described the 1st oscillator, and is fixedly mounted on the camera head main body; The 1st moving body, it pushes the described drive division of described the 1st oscillator, and moving direction is restricted to the 1st direction by the guide portion that described fixed part had, and the 1st moving body is driven by the elliptical vibration of described the 1st oscillator, moves along the 1st direction with respect to described fixed part; The 2nd oscillator, it is maintained in described the 1st moving body with the 2nd maintaining part, according to the indication of described microcomputer, makes drive division produce elliptical vibration by applying predetermined all wave voltages; And the 2nd moving body, it pushes the described drive division of described the 2nd oscillator, and moving direction is restricted to the 2nd direction by the guide portion that described the 1st moving body is had, the 2nd moving body is driven by the elliptical vibration of described the 2nd oscillator, move along the 2nd direction with respect to described the 1st moving body, and keep described imaging apparatus on camera axis, at least one moving body in described the 1st, the 2nd moving body comprises: the 1st moves body, and it forms wishes size; And the 2nd move body, it has the sliding part that described drive division contacts, with the opposition side that is arranged on this sliding part, moving direction by engaging the directed section that is directed with described guide portion, the 2nd rigidity that moves body moves the body height than the described the 1st, and, form to such an extent that to move body than the described the 1st little, and be fixed on the 1st and move on the body.
And, the camera head that the present invention relates to has the microcomputer of this camera head molar behavior of control, with the camera axis plane orthogonal in, on the 1st direction of quadrature and the 2nd direction, the imaging apparatus displacement is moved, with compensate for jitter, it is characterized in that this camera head has: the 1st oscillator, it makes drive division produce elliptical vibration according to the indication of described microcomputer by applying predetermined all wave voltages; Fixed part, it forms the shaped as frame shape that surrounds camera axis opening on every side, and has the 1st maintaining part that keeps described the 1st oscillator, and is fixedly installed on the camera head main body; The 1st moves body, and it wishes size to surround the camera axis shaped as frame shape formation of opening on every side; The 2nd moves body, its described drive division with described the 1st oscillator is pressed and the sliding part that contacts, with the opposition side that is arranged on this sliding part, moving direction by engaging and to directed section that the 1st direction is directed with guide portion that described fixed part is had, the 2nd rigidity that moves body moves the body height than the described the 1st, and, form to such an extent that to move body than the described the 1st little, and being fixed on the 1st moves on the body, elliptical vibration by described the 1st oscillator drives, and moves along the 1st direction with respect to described fixed part; The 2nd oscillator, it is maintained at has the described the 1st of the 2nd maintaining part and moves in the body, according to the indication of described microcomputer, makes drive division produce elliptical vibration by applying predetermined all wave voltages; The 3rd moves body, and it keeps described imaging apparatus on camera axis, and is provided in the described the 1st and moves in the described opening of body, forms to wish size; And the 4th move body, its described drive division with described the 2nd oscillator is pressed and the sliding part that contacts, with the opposition side that is arranged on this sliding part, moving direction by moving with the described the 1st that guide portion that body has engages and to directed section that the 2nd direction is directed, the 4th rigidity that moves body moves the body height than the described the 3rd, and, form to such an extent that to move body than the described the 3rd little, and being fixed on the 3rd moves on the body, elliptical vibration by described the 2nd oscillator drives, and moves body with respect to the described the 1st and moves along the 2nd direction.
According to drive unit that the present invention relates to and camera head, high and the oscillator of generation elliptical vibration that obtains big actuating force easily of service efficiency is as drive source, on the other hand, on mobile side, wish that according to forming the 1st of size moves body as mobile object, with move the 2nd little structure of cutting apart that moves body of body than the 1st, fixing the two makes them integrated, by moving sliding part and the directed section that is applied in big power is set on the body the little the 2nd, the actuating force propagation function and the moving direction guiding function that have compiled oscillator, the big the 1st moves body and the 2nd moves body and becomes one, only follow mobile, by only making the little the 2nd to move the body side and form rigidity and uprise, can realize the high efficiency that actuating force is transmitted, on the other hand, the 1st moves the body side does not need the 2nd and moves like that high rigidity of body side, wish size as long as adopt the material of lightweight to form, and, do not need to limit the 1st specific boot mechanism that moves the moving direction of body, can realize large driving force as a whole, high efficiency and miniaturization and.
Description of drawings
Fig. 1 is the block diagram of structure of main electrical system that the camera of embodiments of the present invention roughly is shown.
Fig. 2 is the vertical profile end view of the structure example of expression image unit.
Fig. 3 is the schematic diagram of the operating principle of expression oscillator.
Fig. 4 is the exploded perspective view of the structure example of expression vibrationproof unit.
Fig. 5 simplifies the shape of each one shown in Figure 4 and the summary side elevation of the vibrationproof unit that illustrates.
Fig. 6 be extract out and enlarged drawing 5 in X-axis driving mechanism portion and the summary side elevation that illustrates.
Fig. 7 is the cutaway view of expression pilot bearing structure.
Fig. 8 is expression produces the situation of deflection because of the pressing force to oscillator a key diagram.
The general flowchart of the corrective action when Fig. 9 is the expression still image photographing.
Embodiment
Below, with reference to the accompanying drawings the drive unit implementing the present invention relates to and the best mode of camera head are described.The camera head of present embodiment is equipped with the hand that is used to carry out image unit and trembles the drive unit of correction, this image unit comprises the imaging apparatus that obtains picture signal according to light-to-current inversion, here, as an example, the application examples of the single-lens reflex Electrofax (digital camera) that can change camera lens is described.And, the invention is not restricted to execution mode, so long as do not break away from the scope of aim of the present invention, can carry out various distortion.
At first, with reference to Fig. 1 the structure example of the camera arrangement of present embodiment is described.Fig. 1 is the block diagram that the main electrical system architecture of camera of present embodiment roughly is shown.The camera of present embodiment is by systematically constituting as the main computer unit 100 of camera body with as the lens unit 10 that an accessories apparatus is promptly changed camera lens.
The illustrated lens bracket of not doing of the front of lens unit 10 by being arranged on main computer unit 100 freely loads and unloads.The camera lens control that the control of lens unit 10 is had by self is carried out with microcomputer (hereinafter referred to as " Lucom ") 5.The control of main computer unit 100 is carried out with microcomputer (hereinafter referred to as " Bucom ") 50 by host computer control.These Lucom 5 and Bucom 50 is connected into by being electrically connected under main computer unit 100 is equipped with the state of lens unit 10 and can communicates by communications connector 6.And,, from the possession Bucom 50 cooperated on one side and carries out work Yi Bian constitute Lucom 5 as camera arrangement.
Lens unit 10 possesses phtographic lens 1 and aperture 3.Phtographic lens 1 is by the illustrated DC motor driven of not doing that is arranged in the lens driving mechanism 2.Aperture 3 is driven by the illustrated stepping motor of not doing that is arranged in the aperture device 4.Lucom 5 is according to these each motor of commands for controlling of Bucom 50.
Be equipped with following component parts in the main computer unit 100 as shown in figure.For example, be provided with focal plane formula shutter 15 on component parts as the single-lens reflex of optical system (pentaprism 12, quick-return mirror 11, eyepiece 13, auxiliary mirror 11a), the camera axis, receive the AF sensor unit 16 that is used to detect defocus amount from the folded light beam of auxiliary mirror 11a.AF sensor unit 16 is based on the device of phase difference detection mode, possesses single-lens 16a, speculum 16b and utilizes the AF transducer 16c of CCD etc.
And, be provided with to AF sensor unit 16 carry out drive controlling AF sensor drive driving circuit 17, quick-return mirror 11 is carried out the mirror driving mechanism 18 of drive controlling, shutter cocking mechanism 19 that the spring of the preceding curtain that drives shutter 15 and back curtain is tightened, is controlled the shutter control circuit 20 of the action of curtain and back curtain before these and carry out the light measuring circuit 21 that photometry is handled according to the photometry sensor 21a that detects from the light beam of pentaprism 12.
On camera axis, be provided with the image unit 30 that is used for the subject image by above-mentioned optical system is carried out light-to-current inversion.Image unit 30 by as the CCD 31 of imaging apparatus and the optical low-pass filter (LPF) 32, membrane filter 33 that are provided in its front as the unit and integrated formation.Circumference at membrane filter 33 is equipped with piezoelectric element 34.Piezoelectric element 34 has two electrodes, constitutes by membrane filter control circuit 48 to make piezoelectric element 34 with predetermined frequency vibration, makes membrane filter 33 vibrations thus, thereby can remove attached to the dust on the filter surfaces.For the image unit 30 additional vibrationproof unit that have the hand of narrating later to tremble correction usefulness.
In addition, the camera arrangement of present embodiment constitutes, and possesses: be connected the CCD interface circuit 23 on the CCD 31; Wait the image process controller 28 that carries out image processing with the SDRAM 25, the FlashROM 26 that utilize monitoring lcd device 24, play a role, can provide the electronical record Presentation Function with the electro-photographic function as storage area.Here, recording medium 27 is various storage cards and external recording mediums such as HDD in addition, is installed into by communications connector and can communicates by letter with camera body and can change.And, the view data that chronophotography obtains in this recording medium 27.As other storage area, the nonvolatile memory 29 that for example is made of EEPROM of the expectant control parameter that photokymograph control is required is set to and can carries out access from Bucom 50.
In Bucom 50, be provided with by showing that output informs that to the user action demonstration of the operate condition of this camera shows with LED 51a, camera operation switch 52 with LCD 51 and action.Camera operation switch 52 is to comprise the required operating knob of these cameras of operation such as for example release-push, mode altering switch and mains switch in interior switches set.And, be provided with battery 54, the voltage transformation of battery 54 is the power circuit 53 that the essential voltage of each circuit unit that constitutes this camera arrangement provides, also be provided with the voltage detecting circuit of the change in voltage of detection when external power source provides electric current by socket as power supply.
Each one of the camera arrangement of above-mentioned formation roughly carries out following work.At first, image process controller 28 is controlled CCD interface circuit 23 according to the instruction of Bucom 50, is taken into view data from CCD 31.This view data is transformed into vision signal by image process controller 28, is output demonstration on monitoring lcd device 24.The user can confirm the image of being photographed from the display image of this monitoring lcd device 24.
SDRAM 25 is temporary transient keeping memories of view data, the working region during as the view data conversion etc.In addition, keeping was in recording medium 27 after view data was transformed to jpeg data.
Then, with reference to Fig. 2 the image unit 30 that comprises CCD 31 is described.Fig. 2 is the vertical profile end view of the structure example of expression image unit 30.Image unit 30 possesses: as the CCD 31 of imaging apparatus, it obtains shining with seeing through photographic optical system the corresponding picture signal of light on self the photoelectric conversion surface; Optical low-pass filter (LPF) 32, it is provided in the photoelectric conversion surface side of CCD 31, the intrafascicular removal radio-frequency component of object light that shines from seeing through photographic optical system; Membrane filter 33, its front face side at this optics LPF 32 separate predetermined space and this optics LPF 32 configuration opposed to each other mutually; And piezoelectric element 34, it is configured in the circumference of this membrane filter 33, the vibration that membrane filter 33 is scheduled to.
Here, the CCD chip 31a of CCD 31 is directly installed on the flexible substrate 31b that is equipped on the fixed head 35, and connecting portion 31c, the 31d that stretches out from the two ends of flexible substrate 31b is connected with main circuit substrate 36 sides by connector 36a, the 36b that is arranged on the main circuit substrate 36.In addition, the cover glass 31e that has of CCD 31 is fixedly mounted on the flexible substrate 31b by pad 31f.
In addition, be equipped with the filter support component 37 that constitutes by elastomeric element etc. between CCD 31 and the optics LPF 32.This filter support component 37 constitutes, avoid by the front face side circumference that is provided in CCD 31 on the position of effective range of photoelectric conversion surface, and be connected to optics LPF32 the rear side circumference near, can roughly keep the air-tightness between CCD 31 and the optics LPF 32.Then, set the retainer 38 that hermetic covers CCD 31 and optics LPF 32.The substantial middle of retainer 38 around camera axis partly has rectangular-shaped opening 38a, be formed with section in the inner peripheral portion of membrane filter 33 sides of this opening 38a and be the stage portion 38b of L word shape roughly, be equipped with optics LPF 32 and CCD 31 from its rear side with respect to opening 38a.Here by being configured to that the front face side circumference of optics LPF 32 roughly is contacted with stage portion 38b airtightly, can limit the position of optics LPF 32, prevent that its inside from retainer 38 breaks away to front face side by stage portion 38b in the camera axis direction.
On the other hand, circumference in the front face side of retainer 38, for membrane filter 33 being remained on with separating predetermined space the front of optics LPF 32, complete cycle ground forms than stage portion 38b to the side-prominent membrane filter support portion 38c in front around stage portion 38b.Forming circular or polygonal tabular membrane filter 33 is as a whole formed by the elastomer of leaf spring etc., be pressed parts 40 in the pressed state lower support on the 38c of membrane filter support portion, this pressing component 40 is fixed on the 38c of membrane filter support portion by screw 39.Here, on piezoelectric element 34 parts of the outer peripheral edges portion of the rear side that is provided in membrane filter 33, and membrane filter support portion 38c between get involved cyclic sealing gasket 41 arranged, guarantee airtight conditions.Image unit 30 constitutes possesses the air tight construction that forms the retainer 38 of wishing size, and this retainer 38 is installed CCD 31 like this.
Then, the hand of the camera of present embodiment being trembled calibration function describes.In the present embodiment, direction at camera axis is under the situation of Z-direction, with the XY plane of camera axis quadrature in, to move as CCD 31 displacements of imaging apparatus in the X-direction of mutually orthogonal conduct the 1st direction with on as the Y direction of the 2nd direction, with compensate for jitter, comprise hand tremble the vibrationproof unit of the drive unit of proofreading and correct usefulness will produce elliptical vibration by applying predetermined all wave voltages on drive division oscillator as drive source, with the installation in the image unit 30 retainer 38 of CCD 31 constitute mobile object.
At first, the operating principle that is used as the oscillator of drive source in the drive unit to present embodiment describes.Fig. 3 is the schematic diagram of the operating principle of expression oscillator.Oscillator 200 possesses with pre-sizing and forms rectangular-shaped piezoelectrics 201, is biased in a side of these piezoelectrics 201 and forms centrosymmetric a pair of drive electrode 202,203, be arranged at the driver 204,205 as drive division on the surface location of the piezoelectrics 201 corresponding with drive electrode 202,203 by polarization.If apply positive voltage to drive electrode 202, then shown in Fig. 3 (a), the drive electrode 202 part extensional deformations of polarization structure, piezoelectrics 201 parts of its rear side extensional deformation not on the other hand is so integral body is circular-arc distortion.On the contrary, if apply negative voltage to drive electrode 202, then shown in Fig. 3 (c), the drive electrode 202 part contraction distortions of polarization structure, piezoelectrics 201 parts at its back side are not shunk on the other hand, so integral body is and the rightabout circular-arc distortion of Fig. 3 (a).Drive electrode 203 sides too.
Therefore, want to produce elliptical vibration on the surface of driver 204,205, need on a polarized drive electrode 202 of piezoelectrics 201, apply all wave voltages of the sine wave of preset frequency, apply simultaneously all wave voltages of the sine wave of but phase shifting identical with the cycle electric voltage frequency that applies to drive electrode 202 to another drive electrode 203.The frequency of all wave voltages that apply is set to following predetermined numerical value: the central authorities of piezoelectrics 201 become the joint of flexural vibrations, driver 204,205 parts become the abdomen of flexural vibrations, and, the joint homogeneity value of the joint of the compressional vibration of piezoelectrics 201 and flexural vibrations.So, being accompanied by the positive and negative variation of all wave voltages that apply, oscillator 200 comprises the reset condition shown in Fig. 3 (b) interior, and the flexural vibrations shown in Fig. 3 (a)～(c) repeatedly produce elliptical vibration on the surface of driver 204,205.Therefore, set by the moving body that face contact becomes driven object in driver 204,205 sides of oscillator 200, thus the elliptical vibration that moving body produces along with the surface of driver 204,205 towards moving.
At this moment, be applied to the phase difference of all wave voltages on the drive electrode 202,203, can change the shape of the elliptical vibration that produces on the surface of driver 204,205, therefore can change the translational speed of the moving body that is driven by oscillator 200 and move by change.For example, if the phase difference of all wave voltages is 0 °, then speed is 0, but phase difference is when increasing, speed improves gradually, and phase difference is 90 ° and reaches maximal rate, and in addition, phase difference is greatly to above 90 ° the time, speed descends on the contrary gradually, and when phase difference was 180 °, speed was 0 once more.If phase difference is a negative value, then the direction of rotation counter-rotating of the elliptical vibration of driver 204,205 generations can drive moving body in the other direction.Also be that phase difference reaches maximal rate when being-90 ° under this situation.
Then, describe as the vibrationproof unit of the present embodiment of drive source using such oscillator with reference to Fig. 4～Fig. 7.Fig. 4 is the exploded perspective view of structure example of the vibrationproof unit of expression present embodiment, Fig. 5 simplifies the shape of each one shown in Figure 4 and the summary side elevation of the vibrationproof unit that illustrates, Fig. 6 be extract out and enlarged drawing 5 in X-axis driving mechanism portion shown in summary side elevation, Fig. 7 is the cutaway view of its pilot bearing structure of expression.
At first, the vibrationproof unit 300 of present embodiment is the final mobile object that retainer 38 that CCD 31 has been installed is moved along X-direction and Y direction with optics LPF 32, membrane filter 33 etc., possess: X frame (the 1st moving body) 301, it is according to the shaped as frame shape with the 301b of frame portion that surrounds camera axis opening 301a on every side, retainer 38 is installed as and can moves along Y direction, and form the hope size; And framework (fixed part) 302, it is installed as X frame 301 can move along X-direction according to the shaped as frame shape with the 302b of frame portion that surrounds camera axis opening 302a on every side, and forms the hope size, and is fixed on the not shown camera body.
And, possess the X-axis driving mechanism 310x of portion that X frame 301 is moved along the X-direction displacement with respect to framework 302, the Y-axis driving mechanism 310y that retainer 38 is moved along the Y direction displacement with respect to X frame 301, by retainer 38 is moved along the X-direction displacement with respect to framework 302 with X frame 301, move along the Y direction displacement with respect to X frame 301 simultaneously, the CCD 31 that is installed on the retainer 38 moves along X-direction and Y direction displacement in the XY plane, with compensate for jitter.
Here, the structure to the X-axis driving mechanism 310x of portion describes.The X-axis driving mechanism 310x of portion possesses: X-axis oscillator (the 1st oscillator) 320x; Slide mass (the 2nd moves body) 330x, it is fixed on the X frame 301 integratedly, becomes moving body (the 1st moving body) 311x of driven object with X frame 301; And pressing mechanism (bullet pushes away the unit) 340x, it carries out bullet to slide mass 330x side to X-axis oscillator 320x and pushes away.
In addition, slide mass 330x is fixed with sliding panel (sliding part) 332x on bearing (directed section) 331x. Bearing 331x driver 321x, the 322x of X-axis oscillator 320x be pressed and with sliding panel 332x position contacting on, with respect to the part of X frame 301, for example fixedly make it integrated by screw 333x.And slide mass 330x fixedly is not limited to screw with respect to X frame 301, also can be bonding etc., and fixed form does not specify.Here, slide mass 330x compares with forming the X frame 301 of wishing size as can be seen from Figure 4, and size forms than its little (with the suitable size of X-axis oscillator 320x).In addition, X frame 301 uses resin material or aluminium alloy or the high formation such as magnesium alloy of absorption of vibrations, and that sliding panel 332x uses pottery with mar proof etc. to form is higher than X frame 301 rigidity, and bearing 331x improves rigidity by the hardenable materials such as stainless steel of ferrite class are quenched.
In addition, framework 302 possesses bearing (guide portion) 304x, and this bearing 304x is configured on the installation portion of the opening shape that is formed at framework 302, is fixed to mutually opposed with the bearing 331x of slide mass 330x by screw 303x.On this bearing 304x, as shown in Figure 7, form the V frid 306x that is fixed with the usefulness that prevents to wear and tear along the V groove 305x of X-direction.On bearing 331x, as shown in Figure 7, be formed with the opposed V groove 334 of V groove 305x (V frid 306x) with bearing 304x.Here, be clipped between V groove 305x, the 334x by making two the ball 336x (rotor) by locator 335x location, bearing 304x, 331x are constructed to have two ball 336x that are arranged in 1 row along X-direction.Two ball 336x are as shown in Fig. 6 waits, and are positioned near the position under driver 321x, the 322x, by moving of locator 335x restriction X-direction.And, being not limited to ball as rotor, roller also can.
And, bearing 331x is by the center of ball 336x, can be around the axle rotation that is parallel to V groove 334x, but, bearing 331x and X frame 301 are integrated, on the position away from bearing 331x of the direction different (on the frame 302b of portion farthest the position at almost diagonal angle), between framework 302 and X frame 301, be equipped with a ball 307x (rotor) with X-direction.This ball 307x carries out following location: blocked the bullet thrust of ending the spring 308x between near framework the ball 307x 302 and X frame 301 and be maintained clamp position, keep X frame 301 with respect to the interval of framework 302 in camera axis (Z axle) direction.Here, as long as the bullet thrust of spring 308x can be kept the clamp position of ball 307x, can set for than by a little less than the bullet thrust of pressing spring 347x what.Thus, the moving body 311x that is made of X frame 301 and slide mass 330x constitutes, and can move by the supported at three point of being made up of two ball 336x and ball 307x with respect to framework 302.In addition, ball 307x can separate the distance between ball 307x and the ball 336x by be configured in the opposition side of ball 336x across camera axis and opening 301a, therefore can form stable supported at three point structure.Like this,, use three balls (rotor) can also the regulation gradient in the guiding of the moving direction that carries out moving body 311x, can carry out stable driving according to present embodiment.
On the other hand, the Y-axis driving mechanism 310y of portion also is that essential structure and the X-axis driving mechanism 310x of portion are same, at same or counterpart prosign are enclosed subscript y and represent, and omit explanation.And, for the Y-axis driving mechanism 310y of portion, replace framework 302 with X frame 301 as fixed part, replace X frame 301 that retainer 38 the 1st is moved body (perhaps the 3rd moving body) as what become mobile object, and possesses slide mass (the 2nd moves body or the 4th moves body) 330y, this slide mass 330y is fixed on the retainer 38 integratedly, becomes moving body (the 2nd moving body) 311y of driven object with retainer 38.
In addition, the vibrationproof unit 300 of present embodiment is equipped with the X-axis gyroscope 350x of the shake around X-axis (shake of incline direction up and down) that detects main computer unit 100 and the Y-axis gyroscope 350y of the shake around Y-axis (shake of the direction that tilts) that detects main computer unit 100 on framework 302.In addition, possess position-detection sensor 353, this position-detection sensor 353 by be provided on the framework 302 Hall element 351 with constitute with magnet 352 that Hall element 351 is provided on the part of retainer 38 mutually opposed to each other.And, also possess Vibroisolating control circuit 355, this Vibroisolating control circuit 355 is according to the oscillator drive circuit of controlling from the signal of these X-axis gyroscopes 350x, Y-axis gyroscope 350y and position-detection sensor 353 at X-axis oscillator 320x, Y-axis oscillator 320y 354.Vibroisolating control circuit 355 is carried out control action according to the indication from Bucom 50.
Then, the action to X-axis driving mechanism 310x describes.When on driver 321x, 322x, producing elliptical vibration applying predetermined all wave voltages on the X-axis oscillator 320x, driver 321x, the 322x of X-axis oscillator 320x is pressed the strong bullet thrust face contact of mechanism 340 on sliding panel 332x, and slide mass 330x drives to the direction of rotation of the elliptical vibration of driver 321x, 322x.
At this moment, because the pressing force that is applied on the X-axis oscillator 320x is strong, if so a little less than the rigidity of the sliding panel 332x of formation slide mass 330x or bearing 331x, then as shown in phantom in Figure 8, additional pressing force makes sliding panel 332x or bearing 331x deflection, and driver 321x, 322x partly contact with sliding panel 332x and become action instability or no longer action.
Based on this point, in the present embodiment, owing to constitute the sliding panel 332x of slide mass 330x and the rigidity height of bearing 331x, so the face contact of driver 321x, 322x and sliding panel 332x is in stable condition, follow the actuating force of elliptical vibration to be passed to reliably on the sliding panel 332x, can be expeditiously drive in the direction of rotation of elliptical vibration.At this moment, having the slide mass 330x side of sliding panel 332x is not the face contact with respect to framework 302, in of the rotating manner contact of bearing 331x, 304x part, so even pressing force is strong, slide mass 330x also can move under the very little state of friction reliably with respect to framework 302 with ball 336x.And bearing 331x, 304x are owing to being made of 1 row ball location bearing along X-direction, so slide mass 330x only moves in X-direction under the situation of the driving that is subjected to X-axis oscillator 320x.Like this, when slide mass 330x moved, fixedly the X frame 301 of slide mass 330x also moved along X-direction integratedly with slide mass 330x.That is, the moving direction of X frame 330x also comes channeling conduct by bearing 331x, 304x engaging each other, and this bearing 331x, 304x are made of 1 row ball location bearing along X-direction.
In such action, bearing 331x is by the center of ball 336x, can be around the axle rotation that is parallel to V groove 334x, but, bearing 331x and X frame 301 are integrated, on the position of the direction different away from bearing 331x with X-direction, set a ball 307x between framework 302 and the X frame 301, the moving body 311x that is made of X frame 301 and slide mass 330x carries out three somes supports with respect to framework 302 by two ball 336x and a ball 307x on the position that separates, so can stably not move because of producing repercussions around the axle rotation that is parallel to V groove 334x in framework 302 upper edge X-directions.Therefore, so long as get final product, can realize miniaturization/simple structureization at the guide support mechanism of the strong pressing part of X-axis oscillator 320x along the 1 row ball location bearing structure of the X-direction of bearing 331x, 304x.
Y-axis driving mechanism 310y also with the same action of situation of X-axis driving mechanism 310x.
Then, the adversary trembles corrective action and describes.Do not make illustrated hand in the unlatching camera operation switch 52 and tremble correcting switch, when not making illustrated master switch and being unlocked, the signal that oscillator drive circuit 354 is carried out initial actuating is passed to Vibroisolating control circuit 355 from Bucom 50, apply predetermined all wave voltages from oscillator drive circuit 354 to X-axis oscillator 320x and Y-axis oscillator 320y, X frame 301 and retainer 38 are driven on X-direction and Y direction, make the center of CCD 31 move on on the camera axis.
Then, the dither signal of the main computer unit 100 that X-axis gyroscope 350x, Y-axis gyroscope 350y are detected is taken into Vibroisolating control circuit 355.Here, in X-axis gyroscope 350x, Y-axis gyroscope 350y, the signal of exporting around the angular-rate sensor of the shake of an one axle from detection carries out the A/D conversion after the process signal amplification treatment circuit, be transfused to Vibroisolating control circuit 355 then.
In Vibroisolating control circuit 355, come computing jitter correction amount according to the output signal of X-axis gyroscope 350x, Y-axis gyroscope 350y, and export the signal corresponding to oscillator drive circuit 354 with the jitter correction amount of institute computing.Retainer 38 and X frame 301 that CCD 31 has been installed are driven by Y-axis oscillator 320y, X-axis oscillator 320x, and this Y-axis oscillator 320y, X-axis oscillator 320x move according to the signal of telecommunication that oscillator drive circuit 354 is generated.The activation point of CCD 31 (retainer 38) is detected by position-detection sensor 353, and delivers to Vibroisolating control circuit 355 and carry out FEEDBACK CONTROL.
That is, in Vibroisolating control circuit 355, come the computing fiducial value according to the signal of being imported (below be also referred to as " dither signal " or " shake angular velocity signal ") from X-axis gyroscope 350x, Y-axis gyroscope 350y.The computing of fiducial value from the main power source of connecting camera, till carry out exposure that still image photographing uses during carry out.As this computing, the method for the moving average of calculating more long dither signal is arranged or obtain method of DC composition etc. by the lower low pass filter of cut-off frequency, can use arbitrary method.By from dither signal, deducting the fiducial value that this computing is obtained, the signal of the low-frequency component of the dither signal that has been removed.Then, control oscillator drive circuit 354, the position of CCD 31 (retainer 38) is moved, with compensate for jitter according to the output signal of this signal and position-detection sensor 353.
Here, the corrective action during to still image photographing describes with reference to Fig. 9.The general flowchart of the corrective action when Fig. 9 is the expression still image photographing.And this action (before 1R ON) before beginning is prepared in release-push indication photography is not carried out, and (during 1R ON) just began when beginning was prepared in release-push indication photography.
During this action beginning, use the said reference value to come the computing correcting value, begin jitter correction according to the correcting value of calculating and drive (step S11).Then, judge whether to remove the photography that release-push carries out and prepare to begin indication (whether being 1R OFF) (step S12), (step S12 under situation about removing; Be), stop at the jitter correction that has begun among the step S11 and drive, and CCD 31 is felt relieved (step S17), become the indication wait state (1R wait state) that beginning is prepared in photography.
On the other hand, do not removing (step S12: not) under the situation that photography that release-push carries out prepares to begin to indicate, judge then whether release-push indicates photography beginning (whether being 2R ON) (step S13), (step S13: not) under the situation of not indication, return step S12, waiting for standby under the indicating status.Indicated at release-push under the situation of photography beginning (step S13: be), stopped at the jitter correction that has begun among the step S11 and drive, and to CCD 31 feel relieved (step S14).Then, use the fiducial value that is kept to come the computing correcting value, begin jitter correction according to this correcting value and drive (step S15).Then, expose (step S16) when end exposure, stops jitter correction and drives, and CCD 31 is felt relieved (step S17), becomes the indication wait state (1R wait state) that beginning is prepared in photography.
According to present embodiment, service efficiency is high and obtain the oscillator 320x of the generation elliptical vibration of big actuating force easily, 320y is as drive source, on the other hand, at moving body 311x, the 311y side, according to form as original mobile object the X frame 301 of wishing size and retainer 38 such the 1st move body, with move the 2nd such structure of cutting apart that moves body of the little slide mass 330x of body and slide mass 330y than the 1st, fixing the two makes them integrated, by moving sliding panel 332x is set on the body the little the 2nd, 332y and bearing 331x, 331y, compiled oscillator 320x, the actuating force propagation function of 320y and moving direction guiding function, the big the 1st moves body and the 2nd moves body and becomes one, only follow mobile, by only making the little the 2nd to move the body side and form rigidity and uprise, can realize the high efficiency that actuating force is transmitted, on the other hand, the 1st moves the body side does not need the 2nd and moves like that high rigidity of body side, wish size as long as adopt the material of lightweight to form, and, do not need to limit the 1st specific boot mechanism that moves the moving direction of body, can realize large driving force as a whole, high efficiency and miniaturization and.
Claims (12)
1. a drive unit is characterized in that, this drive unit has:
Oscillator, it makes drive division produce elliptical vibration by applying predetermined all wave voltages;
Fixed part, it has the maintaining part that keeps described oscillator; And
Moving body, its elliptical vibration by described oscillator drives, moves with respect to described fixed part,
Described moving body comprises:
The 1st moves body, and it forms wishes size; And
The 2nd moves body, it has that described drive division is pressed and the sliding part that contacts, with the opposition side that is arranged on this sliding part, moving direction by engaging the directed section that is directed with guide portion that described fixed part is had, the 2nd rigidity that moves body moves the body height than the described the 1st, and, form to such an extent that to move body than the described the 1st little, and be fixed on the 1st and move on the body.
2. drive unit according to claim 1, it is characterized in that, with the described the 2nd move that the body one moves the described the 1st move the described guide portion and described 2nd of body by described fixed part and move engaging between the directed section of body and guide moving direction.
3. drive unit according to claim 1 is characterized in that, the described the 1st moves body is formed by resin material, aluminium or magnesium.
4. drive unit according to claim 1, it is characterized in that, this drive unit has bullet and pushes away the unit, and this bullet pushes away the unit to carry out bullet to above-mentioned oscillator and push away, and makes to move body and described oscillator is pushed from the opposition side of described guide portion described drive division to described sliding part across the described the 2nd.
5. drive unit according to claim 1 is characterized in that, described guide portion and described directed section have the rotor that is arranged in 1 row along moving direction,
On the position of the direction different away from described guide portion with moving direction, have a rotor of location usefulness, this rotor is provided in the described the 1st and moves between body and the described fixed part under the clamp position that plays thrust.
6. a drive unit is characterized in that, this drive unit has:
The 1st oscillator, it makes drive division produce elliptical vibration by applying predetermined all wave voltages;
Fixed part, it has the 1st maintaining part that keeps described the 1st oscillator;
The 1st moving body, it pushes the described drive division of described the 1st oscillator, and moving direction is restricted to the 1st direction by the guide portion that described fixed part had, and the 1st moving body is driven by the elliptical vibration of described the 1st oscillator, moves along the 1st direction with respect to described fixed part;
The 2nd oscillator, it is maintained in described the 1st moving body with the 2nd maintaining part, makes drive division produce elliptical vibration by applying predetermined all wave voltages; And
The 2nd moving body, it pushes the described drive division of described the 2nd oscillator, and the guide portion that moving direction is had by described the 1st moving body is restricted to 2nd direction different with the 1st direction, the 2nd moving body is driven by the elliptical vibration of described the 2nd oscillator, move along the 2nd direction with respect to described the 1st moving body
At least one moving body in described the 1st, the 2nd moving body comprises:
The 1st moves body, and it forms wishes size; And
The 2nd moves body, it has the sliding part that described drive division contacts, with the opposition side that is arranged on this sliding part, moving direction by engaging the directed section that is directed with described guide portion, the 2nd rigidity that moves body moves the body height than the described the 1st, and, form to such an extent that to move body than the described the 1st little, and be fixed on the 1st and move on the body.
7. camera head, it has the microcomputer of this camera head molar behavior of control, with the camera axis plane orthogonal in, on the 1st direction of quadrature and the 2nd direction, the imaging apparatus displacement is moved, with compensate for jitter, it is characterized in that this camera head has:
The 1st oscillator, it makes drive division produce elliptical vibration according to the indication of described microcomputer by applying predetermined all wave voltages;
Fixed part, it has the 1st maintaining part that keeps described the 1st oscillator, and is fixedly mounted on the camera head main body;
The 1st moving body, it pushes the described drive division of described the 1st oscillator, and moving direction is restricted to the 1st direction by the guide portion that described fixed part had, and the 1st moving body is driven by the elliptical vibration of described the 1st oscillator, moves along the 1st direction with respect to described fixed part;
The 2nd oscillator, it is maintained in described the 1st moving body with the 2nd maintaining part, according to the indication of described microcomputer, makes drive division produce elliptical vibration by applying predetermined all wave voltages; And
The 2nd moving body, it pushes the described drive division of described the 2nd oscillator, and moving direction is restricted to the 2nd direction by the guide portion that described the 1st moving body is had, the 2nd moving body is driven by the elliptical vibration of described the 2nd oscillator, move along the 2nd direction with respect to described the 1st moving body, and on camera axis, keep described imaging apparatus
At least one moving body in described the 1st, the 2nd moving body comprises:
The 1st moves body, and it forms wishes size; And
The 2nd moves body, it has the sliding part that described drive division contacts, with the opposition side that is arranged on this sliding part, moving direction by engaging the directed section that is directed with described guide portion, the 2nd rigidity that moves body moves the body height than the described the 1st, and, form to such an extent that to move body than the described the 1st little, and be fixed on the 1st and move on the body.
8. camera head according to claim 7 is characterized in that, has the pick-up lens that can load and unload on the camera axis of described imaging apparatus.
9. camera head according to claim 7, it is characterized in that, described the 2nd moving body is in the front face side of described imaging apparatus, with airtight conditions membrane filter and optical low-pass filter are installed with this imaging apparatus, described membrane filter has makes add the shake parts of this membrane filter along the vibration of camera axis direction.
10. camera head, it has the microcomputer of this camera head molar behavior of control, with the camera axis plane orthogonal in, on the 1st direction of quadrature and the 2nd direction, the imaging apparatus displacement is moved, with compensate for jitter, it is characterized in that this camera head has:
The 1st oscillator, it makes drive division produce elliptical vibration according to the indication of described microcomputer by applying predetermined all wave voltages;
Fixed part, it forms the shaped as frame shape that surrounds camera axis opening on every side, and has the 1st maintaining part that keeps described the 1st oscillator, and is fixedly installed on the camera head main body;
The 1st moves body, and it wishes size to surround the camera axis shaped as frame shape formation of opening on every side;
The 2nd moves body, its described drive division with described the 1st oscillator is pressed and the sliding part that contacts, with the opposition side that is arranged on this sliding part, moving direction by engaging and to directed section that the 1st direction is directed with guide portion that described fixed part is had, the 2nd rigidity that moves body moves the body height than the described the 1st, and, form to such an extent that to move body than the described the 1st little, and being fixed on the 1st moves on the body, elliptical vibration by described the 1st oscillator drives, and moves along the 1st direction with respect to described fixed part;
The 2nd oscillator, it is maintained at has the described the 1st of the 2nd maintaining part and moves in the body, according to the indication of described microcomputer, makes drive division produce elliptical vibration by applying predetermined all wave voltages;
The 3rd moves body, and it keeps described imaging apparatus on camera axis, and is provided in the described the 1st and moves in the described opening of body, forms to wish size; And
The 4th moves body, its described drive division with described the 2nd oscillator is pressed and the sliding part that contacts, with the opposition side that is arranged on this sliding part, moving direction by moving with the described the 1st that guide portion that body has engages and to directed section that the 2nd direction is directed, the 4th rigidity that moves body moves the body height than the described the 3rd, and, form to such an extent that to move body than the described the 3rd little, and being fixed on the 3rd moves on the body, elliptical vibration by described the 2nd oscillator drives, and moves body with respect to the described the 1st and moves along the 2nd direction.
11. camera head according to claim 10 is characterized in that, has the pick-up lens that can load and unload on the camera axis of described imaging apparatus.
12. camera head according to claim 10, it is characterized in that, the described the 3rd moves body installs membrane filter and optical low-pass filter with this imaging apparatus with airtight conditions in the front face side of described imaging apparatus, and described membrane filter has makes add the shake parts of this membrane filter along the vibration of camera axis direction.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006338715 | 2006-12-15 | ||
| JP2006-338715 | 2006-12-15 | ||
| JP2006338715 | 2006-12-15 | ||
| JP2007-291313 | 2007-11-08 | ||
| JP2007291313A JP5230994B2 (en) | 2006-12-15 | 2007-11-08 | Driving device and imaging device |
| JP2007291313 | 2007-11-08 |
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| Publication Number | Publication Date |
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| CN101207343A true CN101207343A (en) | 2008-06-25 |
| CN101207343B CN101207343B (en) | 2012-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007101957689A Expired - Fee Related CN101207343B (en) | 2006-12-15 | 2007-12-14 | Driving apparatus and image pickup apparatus |
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| JP (1) | JP5230994B2 (en) |
| CN (1) | CN101207343B (en) |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1011090B (en) * | 1985-04-01 | 1991-01-02 | 株式会社岛津制作所 | X-ray multi-track tomography device |
| JP2001141977A (en) * | 1999-11-15 | 2001-05-25 | Sony Corp | Lens driving device and electronic apparatus having it |
| JP3842093B2 (en) * | 2001-10-01 | 2006-11-08 | コニカミノルタフォトイメージング株式会社 | Imaging device |
| JP2006330077A (en) * | 2005-05-23 | 2006-12-07 | Canon Inc | Optical equipment |
-
2007
- 2007-11-08 JP JP2007291313A patent/JP5230994B2/en active Active
- 2007-12-14 CN CN2007101957689A patent/CN101207343B/en not_active Expired - Fee Related
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Also Published As
| Publication number | Publication date |
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| JP2008172995A (en) | 2008-07-24 |
| JP5230994B2 (en) | 2013-07-10 |
| CN101207343B (en) | 2012-05-09 |
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