CN104834151A - Shake correction apparatus, lens unit and imaging apparatus - Google Patents
Shake correction apparatus, lens unit and imaging apparatus Download PDFInfo
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- CN104834151A CN104834151A CN201510061946.3A CN201510061946A CN104834151A CN 104834151 A CN104834151 A CN 104834151A CN 201510061946 A CN201510061946 A CN 201510061946A CN 104834151 A CN104834151 A CN 104834151A
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B5/00—Adjustment of optical system relative to image or object surface other than for focusing
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/64—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
- G02B27/646—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image compensating for small deviations, e.g. due to vibration or shake
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Abstract
The invention provides a shake correction apparatus, a lens unit and an imaging apparatus and an imaging apparatus. The shake correction apparatus comprises a fixing frame, a mobile frame that holds the lens or fixes a shooting element, abut standard parts that are set on the fixing frame and the mobile frame respectively, a leading mechanism that can make the mobile frame move relative the fixing frame in the surface crossing the optical shaft of the lens; a driving part that drives the mobile frame in a preset direction; a position test part that tests the position of the mobile frame; a buffer member that is set between the mobile frame in the preset direction and the fixing frame. When the position of the lens or the fixing shooting element is corrected, the buffer member is squeezed under the effect of the moved mobile frame and is transformed while the driving part moves toward the fixing frame; the abut standard part of the mobile frame abuts the abut standard part of the fixing frame.
Description
Technical field
The present invention relates to jitter correction device and there is the video camera of jitter correction device, the lens unit of digital camera or the mobile device with camera function etc. and camera head.
Background technology
In the past, in the jitter correction device being located at camera etc., utilize and employ the hand shaking that the hand shaking testing circuit detection camera of angular-rate sensor etc. occurs, based on this detection limit, driver is utilized to make maintenance such as the correction lens of a part for imaging lens system or the movable frame displacement of imaging apparatus, and make the optical axis relative displacement of imaging apparatus and image pickup optical system, suppress the shake of image thus.
But the driver be located in common jitter correction device carries out action by being energized.Thus, owing to losing the acting force of driver when non-energized, so when not having the structure of self confining force, the movable frame maintaining lens or imaging apparatus freely moves under the effect of its deadweight and inertial force.In this case, when the abutting reference section of the movable range of moving-limiting frame abuts to the abutting reference section of fixed frame, likely cause against time clash, impact the breakage of the lens that bring or lens barrel.In order to avoid problem as described above, although bolster can be arranged in the abutting reference section of fixed frame or movable frame, but the words of bolster are only merely set, bolster can hinder and carry out shaking the abutting reference section contact each other revised desired position timing and need, and produces the problem cannot carrying out position correction accurately.
At this, position correction is described.Because the magnet coil Hall element that common jitter correction device adopts etc. and movable frame fixed frame etc. are containing manufacture deviation (error), if therefore only merely arrange them, the adjustment for carrying out shaking the reference position revised mostly cannot be carried out accurately.For this reason, in order to determine that the lens that movable frame keeps or imaging apparatus are relative to the position of fixed frame, need to carry out position correction.Specifically, first, drive movable frame along the 1st direction orthogonal with the optical axis, make it to be connected to fixed frame (the 1st abuts reference section), determine the reference position in the 1st direction thus.Then, drive movable frame along the 2nd direction orthogonal with the optical axis, make it to be connected to fixed frame (the 2nd abuts reference section), determine the reference position in the 2nd direction thus.Carry out the position determining movable frame according to the reference position on the 1st direction and the 2nd direction, feed back the position detection signal obtained by position detection component (Hall element), and make movable frame move to the operation of destination locations.Thus, when movable frame reliably conflicts the abutting reference section in the 1st direction of fixed frame and the 2nd direction, cannot reference position be determined, if therefore arrange the bolster relaxing impact absorbing abutting reference section, obstacle be produced to position correction.
To this, patent documentation 1 discloses when detecting acceleration (impact), makes the action simultaneously of two driver parts and by movable frame by the jitter correction device be pressed on bolster.Moving range when the shake correction of the movable frame driven drives and when position correction drives arranges bolster to angular direction outward.Adopt this structure, in the optical devices being equipped with jitter correction device, the pooling feature of bolster can be utilized to suppress the impulsive force be subject to when impacting to be applied to shake and revise in optical system.
Prior art document
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2011-128415 publication
In addition, the jitter correction device of above-mentioned prior art, when there being impact to be applied on movable frame, makes the action of shake drive unit, drives movable frame and conflict on bolster to angular direction, avoid thus abutting reference section each other against.Thus, in order to play this pooling feature, needing to make the action of shake drive unit all the time, therefore camera etc. cannot be set to non-power status, there is the problem that power consumption increases.
Summary of the invention
The present invention completes in view of the above problems, the abutting reference section of movable frame can be made to be connected to the abutting reference section of fixed frame and when non-energized, the abutting reference section of movable frame also can be suppressed to abut to the jitter correction device of the abutting reference section of fixed frame, lens unit and camera head at position timing even if its object is to obtain.
At least one object to achieve these goals, reflects that the picture shake when jitter correction device of a side of the present invention is made a video recording is revised, wherein,
This jitter correction device comprises:
Fixed frame;
Movable frame, it keeps lens or fixing imaging apparatus;
Abut reference section, it is located at above-mentioned fixed frame and above-mentioned movable frame respectively;
Guide, it can make above-mentioned movable frame move in the face orthogonal with the optical axis of said lens relative to above-mentioned fixed frame;
Driver part, it drives above-mentioned movable frame along prescribed direction;
Position detection component, it detects the position of above-mentioned movable frame;
Buffer component, it is arranged between above-mentioned movable frame on afore mentioned rules direction and above-mentioned fixed frame;
When the position correction of lens or fixing imaging apparatus, when above-mentioned driver part drives above-mentioned movable frame towards above-mentioned fixed frame, after above-mentioned buffer component is extruded distortion under the effect of the above-mentioned movable frame moved, the abutting reference section of above-mentioned movable frame abuts with the reference section that abuts of above-mentioned fixed frame.
According to this jitter correction device, when the position correction of lens or fixing imaging apparatus, after above-mentioned buffer component is extruded distortion under the effect of the above-mentioned movable frame moved towards above-mentioned fixed frame, the abutting reference section of above-mentioned movable frame abuts with the abutting reference section with its relative above-mentioned fixed frame, therefore, by making above-mentioned abutting reference section forcibly abut each other, the position correction of lens or fixing imaging apparatus suitably can be carried out.On the other hand, when impulsive force is applied on above-mentioned jitter correction device, when the above-mentioned abutting reference section of movable frame due to inertia towards the abutting reference section high-speed mobile of above-mentioned fixed frame, owing to first being reduced the kinetic energy of above-mentioned movable frame efficiently by above-mentioned buffer component, even if therefore above-mentioned abutting reference section can not abut or each other when just in case also significantly can reduce the speed in the moment abutted with above-mentioned fixed frame or above-mentioned movable frame when having abutted, therefore can reduce clash or suppression against time the breakage of part or dislocation.In addition, owing to not needing to be energized in order to avoid above-mentioned abutting reference section abutting each other to above-mentioned driver part, therefore power saving is achieved.
This lens unit comprises above-mentioned jitter correction device, has the optical system of multiple lens and keeps the lens barrel of above-mentioned multiple lens.
In said lens unit, preferred above-mentioned optical system is the optical system of the flexure type comprising the reflecting member that light path is bent.When the optical system of flexure type, mostly can make the lower thickness of camera head, movable frame against time clash easily drain to outside, therefore above-mentioned particular significant effect.
Above-mentioned camera head comprises said lens unit and solid-state imager.
In addition, the lens be located in jitter correction device can be single lens, also can be multiple lens.In addition, although the abutting reference section of movable frame and the abutting reference section of fixed frame abut at position timing, also can will abut reference section and make shape for lugs with at least one party abutted in counterpart that reference section abuts.And movable frame, fixed frame can be single parts, it also can be the part combining multiple part.
According to the present invention, the abutting reference section of movable frame can be made to be connected to the abutting reference section of fixed frame and when non-energized, the abutting reference section of movable frame also can be suppressed to abut to the jitter correction device of the abutting reference section of fixed frame, lens unit and camera head at position timing even if can obtain.
Accompanying drawing explanation
Fig. 1 is the main parallax stereogram of the camera head 10 of present embodiment.
Fig. 2 is the rear perspective view of the camera head 10 of present embodiment.
Fig. 3 is the stereographic map of the state represented after lens unit 50 pulled down by camera head 10.
Fig. 4 be comprise IV-IV line carry out cutting and the figure that obtains of the structure of observing Fig. 3 in the direction of the arrow in the face of the structure of Fig. 3.
Fig. 5 is the stereographic map of jitter correction device 100.
Fig. 6 be comprise VI-VI line carry out cutting and the figure that obtains of the structure of observing Fig. 5 in the direction of the arrow in the face of the structure of Fig. 5.
Fig. 7 be comprise VII-VII line carry out cutting and the figure that obtains of the structure of observing Fig. 6 in the direction of the arrow in the face of the structure of Fig. 6.
Fig. 8 be comprise VIII-VIII line carry out cutting and the figure that obtains of the structure of observing Fig. 6 in the direction of the arrow in the face of the structure of Fig. 6, (a) represents the neutral condition after position correction, and (b) represents state during position correction.
Fig. 9 is that the position represented the arrow IX of the structure by Fig. 8 is amplified and the figure obtained, and (a) represents state during position correction, and (b) represents the state be subject to when impacting.
Figure 10 is the stereographic map of retainer 101.
Figure 11 is the stereographic map of fixed frame 100.
Embodiment
The camera head of embodiments of the present invention is described with reference to accompanying drawing.Fig. 1 is the main parallax stereogram of the camera head 10 of present embodiment, and camera head 10 is digital cameras, and Fig. 2 is the rear perspective view of the camera head 10 of present embodiment.
Camera head 10 as digital camera has the exterior housing 12 of formation.As shown in Figure 1 and Figure 2, housing 12 has the thickness of fore-and-aft direction, the height of above-below direction that size is larger than thickness and size than the width of highly large left and right directions, is formed as flat thinner rectangular plate-like.
As shown in Figure 1, be provided with opening 12a at the position of the sidepiece of keeping right on the front surface top of housing 12, the 1st lens combination of aftermentioned camera-lens system faces front by opening 12a and establishes.In addition, front surface is provided with the cover component 14 that can block opening 12a.
As shown in Figure 2, be provided with display 32 at the back side of housing 12, display 32 shows the image (view data) photographed, and display is for carrying out and shooting, the operation screen playing relevant various setting operations etc. or menu screen etc.Display part is formed by display 32.As display 32, the known display device such as liquid crystal indicator or organic EL display can be adopted.
Shutter release button 34, power switch 36 is provided with at the upper surface of housing 12.Zoom operation switch 38 and multiple operating switch 40 is provided with in the right side of the rear surface of housing 12, zoom operation switch 38 is for adjusting the zoom ratio of camera-lens system to side of looking in the distance (tele side) or wide-angle side (wide side), multiple operating switch 40 carries out the various operation such as switching of image pickup mode, play mode, or carries out the selection operation of option, the setting operation etc. of setting item of the menu screen being shown in display 32.
Fig. 3 is the stereographic map of the state represented after lens unit 50 pulled down by camera head 10.Fig. 4 be comprise IV-IV line carry out cutting and the figure that obtains of the structure of observing Fig. 3 in the direction of the arrow in the face of the structure of Fig. 3.
As shown in Figure 3, lens unit 50 entirety, in rectangular-shaped, has lens barrel 51 connected to each other and jitter correction device 52.
In the diagram, lens unit 50 has the camera-lens system OS of bending class.Camera-lens system OS is made up of the 1st lens combination L1, the 2nd lens combination L2, the 3rd lens combination L3, the 4th lens combination L4, the 5th lens combination L5 and not shown IR-CUT filter successively from object side., although not shown, but be provided with imaging apparatus in the below of lens unit 50 by fixed frame 100 in addition.
1st lens combination L1 is successively by concavees lens L1a, form as the prism PZ of the reflecting member making the optical axis of camera-lens system bend and convex lens L1b from object side, and they are installed in lens barrel 51.
2nd lens combination L2 is the lens combination of zoom, and the concavees lens L2a be arranged in order from object side, concavees lens L2b and convex lens L2c are integrally installed on retainer HLD1, and can move along optical axis direction relative to lens barrel 51.
3rd lens combination L3 is made up of 1 convex lens, is installed on lens barrel 51.4th lens combination L4 is the lens combination of zoom and focusing, and the concavees lens L4a be arranged in order from object side and convex lens L4b is integrally installed on retainer HLD2, and can move along optical axis direction relative to lens barrel 51.
5th lens combination L5 from object side successively by being held in the concavees lens L5a of lens barrel 51, the convex lens L5b being held in retainer 101 (movable frame) and the concavees lens L5c that is held in fixed frame 100 is formed.
The jitter correction device 52 of present embodiment is described.Fig. 5 is the stereographic map of jitter correction device 52, Fig. 6 be comprise VI-VI line carry out cutting and the figure that obtains of the structure of observing Fig. 5 in the direction of the arrow in the face of the structure of Fig. 5, Fig. 7 be comprise VII-VII line carry out cutting and the figure that obtains of the structure of observing Fig. 6 in the direction of the arrow, Fig. 8 are the structures in the face of Fig. 6 that comprise VIII-VIII line carries out cutting and the figure that obtains of the structure of observing Fig. 6 in the direction of the arrow in the face of the structure of Fig. 6.Figure 10 is the stereographic map of retainer 101.Figure 11 is the stereographic map of fixed frame 100.
In figure 6, the retainer 101 be contained in jitter correction device 52 is the elongated tabular extended along the direction orthogonal with the optical axis of convex lens L5b, and at one end side maintains convex lens L5b, stacked yoke YK1, the YK2 maintaining tabular in another side.On retainer 101, be adjacent to be provided with the yoke YK1 of object side the magnet MG1 that working direction drives.Above magnet MG1, fixed frame 100 is provided with sensor (Hall element) S1 of coil CL1 and the working direction position detection driven from the working direction of externally fed.Working direction drive division is formed by magnet MG1, yoke YK1, YK2, coil CL1.
Although can't see in Fig. 6, retainer 101 is adjacent to be provided with the magnet MG2 (with reference to Fig. 7) that sense of rotation drives with the yoke YK2 of imaging apparatus side.In the below of magnet MG2, fixed frame 100 is provided with sensor (Hall element) S2 of coil CL2 and the sense of rotation position detection driven from the sense of rotation of externally fed.Sense of rotation drive division is formed by magnet MG2, yoke YK1, YK2 and coil CL2.
In figure 6, be formed with in the both ends of the surface of retainer 101 slit 101a, 101b, 101c, 101d (with reference to Figure 10) that the left and right directions along Fig. 6 extends.In slit 101d, engaging has from fixed frame 100 vertically (with the direction that optical axis is almost parallel) turning axle 53 of extending.Thus, retainer 101 can move on the bearing of trend of elongated hole 101d relative to forming the turning axle 53 rotating guide mechanism, and can rotate around the rotation AX of turning axle 53 (with reference to Fig. 5).
As shown in figure 11, the relative sidewall of fixed frame 100 is formed porose 100a, 100b (be blocked and can't see, but relative with 100a), 100c, 100d, and pin 54,55,56 runs through this some holes abreast.Pin 54 runs through fixed frame 100 ground and extends, and is sticked in the slit 101a of retainer 101.The two side of pin 55 and pin 56 self-retaining frame 100 respectively inwardly just extends, and the top of pin 55 is sticked in the slit 101b of retainer 101, and the top of pin 56 is sticked in the slit 101c of retainer 101.Adopt such structure, retainer 101 utilizes pin 54,55,56 to remain and can slide in face orthogonal with the optical axis.
The action of jitter correction device 52 is described.When the acceleration transducer etc. that camera head is located in utilization detects that there occurs image shakes, carry out shake correction by making retainer 101 and convex lens L5b together move.Specifically, when convex lens L5b will be driven along sense of rotation, be energized by the coil CL2 driven to sense of rotation and give magnet MG2 magnetic force, in Figure 5, convex lens L5b and by pin 54,55,56 guide retainer 101 together rotate around the rotation AX (θ direction) of turning axle 53, FEEDBACK CONTROL, by detecting with Hall element S2, is carried out in its position.
On the other hand, when convex lens L5b will be driven along working direction, the coil CL1 driven by forward direction is energized and gives magnet MG1 magnetic force, in Figure 5, convex lens L5b and the retainer 101 guided by pin 54,55,56 mobile to the orthogonal direction (r direction) of the rotation AX with turning axle 53, FEEDBACK CONTROL, by detecting with Hall element S1, is carried out in its position.Thus, convex lens L5b can be displaced to the optional position on direction orthogonal with the optical axis relative to imaging apparatus.
But, in order to carry out high-precision shake correction, need the position correction carrying out retainer 101.Position correction such as can be carried out when assembling.When carrying out position correction, need to make the abutting reference section of the θ direction of retainer 101 and the respective of r direction be connected to the abutting reference section of fixed frame, detect this state by Hall element S1, S2, determine the position of movable frame, obtain the neutral position of lens.Illustrate such positional structure.
In Fig. 7, Fig. 8, be formed with small projection (abutting reference section) 101e in the two sides of retainer 101.On the other hand, be provided with shallow recess 100f in the two sides relative with projection 101e of fixed frame 100, in recess 100f, be adhesively fixed with laminal sponge member (buffer component) 102.In addition, through by the above-mentioned pin 54 of a part of providing holes also for the maintenance being used in retainer 101 at bolster, thus Anti-fall countermeasure can also be obtained.Projection 101e and sponge member 102 stagger in the direction of the optical axis.In addition, the neutral position of the lens shown in (a) of Fig. 7 and Fig. 8, retainer 101 is spaced apart Δ with sponge member 102.When shaking correction, the maximum amount of movement of retainer 101 is less than Δ.That is, the moving range of the retainer 101 when shake is revised contacts the position of sponge member 102 by optical axis side than retainer 101.In addition, in face orthogonal with the optical axis, with rotation AX for benchmark, configure convex lens L5b that turning axle 53, retainer 101 keep successively, abut reference section.Become and abut the shape for lugs of reference section and can not be that retainer (movable frame) 101 has but fixed frame 100 had, also can both all have.
When the position correction in θ direction, the coil CL2 driven to sense of rotation is energized, and drives retainer 101 along sense of rotation.Above-mentioned state is represented at (b) of Fig. 8.So, retainer 101 exceedes amount of movement Δ when shake is revised, while make sponge member 102 crimp ((a) with reference to Fig. 9) in the side of retainer 101, projection 101e is made to be connected to the side 100e (the abutting reference section of fixed frame side) of fixed frame 100.Because the rotation of retainer 101 is limited in this condition, therefore it can be used as abut reference section and undertaken by Hall element S2 the θ direction of retainer 101 position detect.Then, to the electric power of the coil CL2 supply antiphase that sense of rotation drives, thus, make sponge member 102 crimp in the side of opposition side, while make projection 101e be connected to the side 100e (the abutting reference section of fixed frame side) of fixed frame 100.It can be used as the abutting reference section of opposition side and undertaken by Hall element S2 the θ direction of retainer 101 position detect.When retainer 101 moves to neutral position, sponge member 102 is from the recovering state after crimp to original shape.
When the position correction in r direction, the coil CL1 driven to sense of rotation is energized, thus makes retainer 101 displacement along its length.Now, because turning axle 53 is connected to wall 101f (Fig. 6), the 101g (Fig. 6) of retainer 101, therefore, it can be used as abut reference section and undertaken by Hall element S1 the r direction of retainer 101 position detect.Based on by 4 positions of abutting reference section detecting the retainer 101 obtained above, the position of convex lens L5b can be determined, control to perform shake well and revise mobile.
The action of camera head 10 is described.In Fig. 1, Fig. 2, when carrying out making operation to power switch 36, by the power supply of coil CL1, CL2, retainer 101 is restrained in assigned position, and convex lens L5b is positioned on optical axis.In this state, moved along optical axis direction with the relation of regulation by operation zoom operation switch the 38,2nd lens combination L2, the 4th lens combination L4, realize zoom.In addition, utilize known image planes AF function, the 4th lens combination L4 moves along optical axis direction, realizes focusing.
Have again, when pressing shutter release button 34, object light via imaging lens system incidence incides the imaging surface of not shown imaging apparatus and is converted to picture signal, shows the subject image based on this picture signal after the image procossing be therefore fixed on the display 32.Now, according to the hand shaking of camera head, jitter correction device 52 makes convex lens L5b move together with retainer 101, thus realizes shake correction.
On the other hand, when carrying out shutoff operation to power switch 36, stop powering to coil CL1, CL2, magnetic binding force disappears, and therefore retainer 101 can freely move.Thus, when user hold camera head 10 firmly rock time, retainer 101 may be caused to move significantly along θ direction.But, adopt present embodiment, even if move due to inertia, due to such as Fig. 9 (b) shown in, the side of retainer 101 contacts with sponge member 102, and therefore further larger movement is prevented from.Thus, can suppress the side 100e of projection 101e and fixed frame 100 against, the generation of clash or the breakage of part can be suppressed.
In addition, be, along the θ direction of retainer 101 movement, sponge member 102 is set between retainer 101 and fixed frame 100 in the above embodiment, but along r direction, sponge member 102 be not set between retainer 101 and fixed frame 100.Its reason is: the resistance surface during position correction in θ direction is away from rotation AX, the amount of movement of projection 101e is larger, therefore, phase Charpy easily become large so that position close to the surface from camera head 10 against clash easily propagate into outside situation, it is little for the impulse ratio in r direction.In addition, the resistance surface during position correction in θ direction, away from rotation AX, also easily guarantees the space arranging sponge member 102.But, along r direction, sponge member 102 can be set between retainer 101 and fixed frame 100.
Below, the optimal way of the above-mentioned jitter correction device of summary description.
Preferably, the moving range of the above-mentioned movable frame during shake correction of above-mentioned jitter correction device contacts the position of above-mentioned buffer unit by described optical axis side than above-mentioned movable frame.Thus, when the shake correction of above-mentioned jitter correction device, movable frame can not contact described buffer component and hinder driving, therefore can carry out the good correction of precision.
In addition, preferably, above-mentioned movable frame keeps described lens, above-mentioned guide comprises and guides the rotation guide of above-mentioned movable frame around the axis almost parallel with described optical axis and can guide the advance guide of above-mentioned movable frame along the direction intersected with the rotation of above-mentioned rotation guide, above-mentioned driver part have around the above-mentioned movable frame of the axis drives almost parallel with described optical axis sense of rotation drive division and the optical axis orthogonal directions drive division of above-mentioned movable frame can be driven along the direction intersected with the rotation of above-mentioned rotation guide, in the face orthogonal with above-mentioned optical axis, with above-mentioned rotation for benchmark, configure turning axle successively, the lens that above-mentioned movable frame keeps and above-mentioned abutting reference section, near above-mentioned abutting reference section, above-mentioned driver part is set.Thus, move owing to can make above-mentioned movable frame to both direction orthogonal with the optical axis, therefore the picture shake of any direction can be revised, but when this mode, the mobile quantitative change of sense of rotation is large, and arranges driver part near abutting reference section, and energy when impacting thus exists the large tendency of change, therefore easily produce the collision of above-mentioned movable frame, the present invention is effective especially.In addition, there is the advantage that the easy sense of rotation along above-mentioned movable frame arranges the space for loading described buffer component.
In addition, preferably, above-mentioned buffer component is made up of the raw material that automatically can recover shape after being under pressure between above-mentioned movable frame and above-mentioned fixed frame at above-mentioned buffer component and being out of shape when this pressure is removed.Thereby, it is possible to repeatedly play the pooling feature of above-mentioned buffer component for a long time.As buffer component, preferably be there is the elasticity of the degree that to be crushed under the driving of above-mentioned movable frame by above-mentioned driver part, sponge, resin material (the Port ロ Application (ProductName) etc. of Co., Ltd. ロ ジ ャ ー ス イ ノ ア ッ Network (exabyte)) or elastomeric material, spring material, gelling material can be used.
In addition, preferably, above-mentioned buffer component is located at the recess of above-mentioned fixed frame or above-mentioned movable frame.Thus, easily assemble bolster, the size of bolster can be increased; and the maximum amount of movement of the above-mentioned movable frame shaken when revising can not be hindered, also can not cause the maximization of above-mentioned fixed frame, surge capability can be improved; and the thickness of bolster can be guaranteed, can by driving crimp.
The present invention is not limited to the embodiment that this instructions is recorded, and also comprises other embodiments, variation, this to those skilled in the art, the embodiment recorded according to this instructions, technological thought are apparent.Such as, also sponge member 102 can be arranged on retainer 101 side.In addition, also solid-state imager can be equipped on retainer 101 and make it move in both direction orthogonal with the optical axis.
10: camera head; 12: housing; 12a: opening; 14: cover component; 32: display; 34: shutter release button; 36: power switch; 38: zoom operation switch; 40: operating switch; 50: lens unit; 51: lens barrel; 52: jitter correction device; 53: turning axle; 54,55,56: pin; 100: fixed frame; 100a: hole; 100b: hole; 100c: hole; 100d: hole; 100e: side; 100f: recess; 101: retainer; 101a: slit; 101b: slit; 101c: slit; 101d: slit; 101e: projection: 101f; Wall; 101g: wall; 102: sponge member; AX: rotation; CL1: the 1 coil; CL2: the 2 coil; HLD1: retainer; HLD2: retainer; L1 ~ L5: lens combination; MG1: magnet; MG2: magnet; PZ: prism; S1: Hall element; S2: Hall element; YK1: yoke; YK2: yoke.
Claims (8)
1. a jitter correction device, picture shake when it is made a video recording is revised, and it is characterized in that,
This jitter correction device comprises: fixed frame; Movable frame, it keeps lens or fixing imaging apparatus; Abut reference section, it is located at above-mentioned fixed frame and above-mentioned movable frame respectively; Guide, it can make above-mentioned movable frame move in the face orthogonal with the optical axis of said lens relative to above-mentioned fixed frame; Driver part, it drives above-mentioned movable frame along prescribed direction; Position detection component, it detects the position of above-mentioned movable frame; Buffer component, it is arranged between above-mentioned movable frame on afore mentioned rules direction and above-mentioned fixed frame;
When the position correction of lens or fixing imaging apparatus, when above-mentioned driver part drives above-mentioned movable frame towards above-mentioned fixed frame, after above-mentioned buffer component is extruded distortion under the effect of the above-mentioned movable frame moved, the abutting reference section of above-mentioned movable frame abuts with the reference section that abuts of above-mentioned fixed frame.
2. jitter correction device according to claim 1, is characterized in that,
The moving range of the above-mentioned movable frame during shake correction of above-mentioned jitter correction device contacts the position of above-mentioned buffer unit by above-mentioned optical axis side than above-mentioned movable frame.
3. jitter correction device according to claim 1 and 2, is characterized in that,
Above-mentioned movable frame keeps said lens,
Above-mentioned guide comprises and guides the rotation guide of above-mentioned movable frame around the axis almost parallel with described optical axis and can guide the advance guide of above-mentioned movable frame movement along the direction intersected with the rotation of above-mentioned rotation guide,
Above-mentioned driver part have around the above-mentioned movable frame of the axis drives almost parallel with described optical axis sense of rotation drive division and drive the optical axis orthogonal directions drive division of above-mentioned movable frame along the direction intersected with the rotation of above-mentioned rotation guide,
In the face orthogonal with above-mentioned optical axis, with above-mentioned rotation for benchmark, configure turning axle successively, lens that above-mentioned movable frame keeps and above-mentioned abutting reference section, above-mentioned driver part is set near above-mentioned abutting reference section.
4. the jitter correction device according to any one of claims 1 to 3, is characterized in that,
Above-mentioned buffer component is made up of the raw material that automatically can recover shape after being under pressure between above-mentioned movable frame and above-mentioned fixed frame at above-mentioned buffer component and being out of shape when this pressure is removed.
5. the jitter correction device according to any one of Claims 1 to 4, is characterized in that,
Above-mentioned buffer component is located at the recess of above-mentioned fixed frame or above-mentioned movable frame.
6. a lens unit, is characterized in that,
This lens unit comprises jitter correction device according to any one of Claims 1 to 5, has the optical system of multiple lens and keep the lens barrel of above-mentioned multiple lens.
7. lens unit according to claim 6, is characterized in that,
Above-mentioned optical system is the optical system of the flexure type comprising the reflecting member that light path is bent.
8. a camera head, is characterized in that,
Above-mentioned camera head comprises lens unit described in claim 6 or 7 and solid-state imager.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-021942 | 2014-02-07 | ||
| JP2014021942A JP2015148737A (en) | 2014-02-07 | 2014-02-07 | Tremor correction device, lens unit and imaging device |
Publications (2)
| Publication Number | Publication Date |
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| CN104834151A true CN104834151A (en) | 2015-08-12 |
| CN104834151B CN104834151B (en) | 2018-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510061946.3A Expired - Fee Related CN104834151B (en) | 2014-02-07 | 2015-02-05 | Jitter correction device, lens unit and camera device |
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| JP (1) | JP2015148737A (en) |
| CN (1) | CN104834151B (en) |
Cited By (6)
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| CN106444224A (en) * | 2016-11-29 | 2017-02-22 | 河南省皓泽电子有限公司 | Periscopic automatic focusing device |
| CN106444223A (en) * | 2016-11-29 | 2017-02-22 | 河南省皓泽电子有限公司 | Periscopic double auto-focusing device |
| CN108427235A (en) * | 2017-02-15 | 2018-08-21 | 三星电机株式会社 | For the reflecting module of optical anti-vibration, camera model and portable electronic device |
| CN111492286A (en) * | 2017-12-21 | 2020-08-04 | 富士胶片株式会社 | Lens barrel and image pickup apparatus |
| CN113542565A (en) * | 2021-07-13 | 2021-10-22 | 中山联合光电科技股份有限公司 | Optical zoom lens and mobile terminal |
| CN115220278A (en) * | 2021-04-20 | 2022-10-21 | 日本电产三协株式会社 | Optical unit and optical apparatus |
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| WO2013105515A1 (en) * | 2012-01-13 | 2013-07-18 | パナソニック株式会社 | Lens barrel |
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| CN101364027A (en) * | 2007-08-09 | 2009-02-11 | 柯尼卡美能达精密光学株式会社 | Imaging unit and electronic device using the same |
| CN101369086A (en) * | 2007-08-13 | 2009-02-18 | 柯尼卡美能达精密光学株式会社 | Position detecting apparatus and electronic equipment |
| JP2011128415A (en) * | 2009-12-18 | 2011-06-30 | Nikon Corp | Image stabilizing apparatus |
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| CN106444224A (en) * | 2016-11-29 | 2017-02-22 | 河南省皓泽电子有限公司 | Periscopic automatic focusing device |
| CN106444223A (en) * | 2016-11-29 | 2017-02-22 | 河南省皓泽电子有限公司 | Periscopic double auto-focusing device |
| CN108427235A (en) * | 2017-02-15 | 2018-08-21 | 三星电机株式会社 | For the reflecting module of optical anti-vibration, camera model and portable electronic device |
| CN111492286A (en) * | 2017-12-21 | 2020-08-04 | 富士胶片株式会社 | Lens barrel and image pickup apparatus |
| CN111492286B (en) * | 2017-12-21 | 2022-03-18 | 富士胶片株式会社 | Lens barrel and image pickup apparatus |
| CN115220278A (en) * | 2021-04-20 | 2022-10-21 | 日本电产三协株式会社 | Optical unit and optical apparatus |
| CN115220278B (en) * | 2021-04-20 | 2024-05-31 | 日本电产三协株式会社 | Optical unit and optical apparatus |
| CN113542565A (en) * | 2021-07-13 | 2021-10-22 | 中山联合光电科技股份有限公司 | Optical zoom lens and mobile terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104834151B (en) | 2018-03-30 |
| JP2015148737A (en) | 2015-08-20 |
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