CN105103047A - Lens barrel and imaging device - Google Patents
Lens barrel and imaging device Download PDFInfo
- Publication number
- CN105103047A CN105103047A CN201480018036.0A CN201480018036A CN105103047A CN 105103047 A CN105103047 A CN 105103047A CN 201480018036 A CN201480018036 A CN 201480018036A CN 105103047 A CN105103047 A CN 105103047A
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- China
- Prior art keywords
- lens barrel
- lens
- optical axis
- drive division
- bolster
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Classifications
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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
- 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
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/02—Bodies
- G03B17/04—Bodies collapsible, foldable or extensible, e.g. book type
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/021—Mountings, adjusting means, or light-tight connections, for optical elements for lenses for more than one lens
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/023—Mountings, adjusting means, or light-tight connections, for optical elements for lenses permitting adjustment
-
- 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
- G03B2205/00—Adjustment of optical system relative to image or object surface other than for focusing
-
- 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
- G03B2205/00—Adjustment of optical system relative to image or object surface other than for focusing
- G03B2205/0007—Movement of one or more optical elements for control of motion blur
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Adjustment Of Camera Lenses (AREA)
- Structure And Mechanism Of Cameras (AREA)
- Studio Devices (AREA)
Abstract
Provided is a lens barrel which has a simple configuration and excellent energy conservation capability, and which enables an image blur correction function during imaging, and retraction from the light axis when the lens barrel is collapsed; also provided is an imaging device using this lens barrel. When image blur correction is performed a movable body (122) rotates and slides with respect to a support shaft (125), in a plane orthogonal to the light axis, and when the lens barrel is collapsed the movable body (122) rotates to a large extent around the support shaft (125), so by using the support shaft (125) in common the driven mechanism is simplified and the mass thereof is reduced, thereby reducing the power consumed during driving, and thus conserving energy.
Description
Technical field
The present invention relates to lens barrel and camera head, particularly relate to and can carry out image blur correcting and regain the lens barrel of lens barrel and use the camera head of this lens barrel.
Background technology
As the lens barrel of heavy cartridge type, there is following lens barrel: in order to shorten optical axis direction length during storage further, when regaining lens barrel, a part of lens combination being kept out of the way outside optical axis.On the other hand, following lens barrel is also known: in order to correct hand shaking during shooting is dynamic, can to image blur correcting lens combination at the enterprising row cutting of optical axis orthogonal directions.The lens barrel in the lump with lens barrel drawing back function as described above and hand image shake correction function is open in patent documentation 1.
In the lens barrel shown in patent documentation 1, under shooting state, the 3rd lens combination LG3 is positioned at the 4th lens combination LG4 the position be separated in the direction of the optical axis, to second mounting table of maintenance the 3rd lens combination LG3 in the first mounting table 30 at the enterprising row cutting of optical axis orthogonal directions, thus carry out image blur correcting.On the other hand, when receiving, make the second mounting table 31 upper mobile at optical axis orthogonal directions (Y-direction) relative to the first mounting table 30, make to leave optical axis and the 3rd lens combination LG3 moved and the 4th lens combination LG4 stayed on optical axis O are positioned at overlapping position in the Y direction, thus shorten optical axis direction length.
At first technical literature
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2011-215389 publication
Patent documentation 2: Jap.P. No. 4830512 instructions
Summary of the invention
The problem that invention will solve
But, in the structure of patent documentation 1, when carrying out image blur correcting, in the X direction in order to make the first mounting table 30 and the second mounting table 31 move integratedly, driving mechanism becomes complicated and huge structure, and, drive electric power increase and existence can not seek energy-conservation problem.
On the other hand, in patent documentation 2, disclose following structure: when regaining lens barrel, ambiguity correction lens combination room 19 is swung around the turning axle of vibrating frame 17, thus make it keep out of the way on optical axis orthogonal directions.But, when image blur correcting, be relative to the structure of fixed frame 16 at the enterprising row cutting of optical axis orthogonal directions by vibrating frame 17, therefore, in the same manner as patent documentation 1, driving mechanism becomes huge structure, and, drive electric power increase and existence can not seek energy-conservation problem.
The present invention is to solve for the purpose of above-mentioned problem, its object is to the camera head a kind of lens barrel being provided and using this lens barrel, keeping out of the way from optical axis when image blur correcting when can take with simple structure and withdrawal lens barrel, and energy saving is excellent.
For solving the scheme of problem
The feature of lens barrel of the present invention is to have:
Multiple lens combination, described multiple lens combination comprises the image blurring correcting lens group corrected;
Mobile lens barrel, described mobile lens barrel can move in the direction of the optical axis and regain;
Stationary magazine creel, described stationary magazine creel is configured in the outside of described mobile lens barrel;
Bolster, described bolster is arranged at described mobile lens barrel;
Lens frame, makes described lens frame rotate relative to described bolster and slide and described correcting lens group can be kept movably in face orthogonal with the optical axis;
First drive division, when carrying out image blur correcting, described first drive division makes described lens frame move in the face orthogonal with described optical axis; And
Second drive division, when regaining lens barrel, described second drive division makes described lens frame rotate larger when described bolster compares described image blur correcting.
According to the present invention, when carrying out image blur correcting, the first drive division makes lens frame move in face orthogonal with the optical axis relative to bolster, when regaining lens barrel, second drive division makes lens frame rotate larger when bolster compares image blur correcting, therefore, by shared bolster, drives structure can be simplified, and its quality reduces, thus, power consumption during driving reduces, and then can seek to shorten lens barrel when regaining lens barrel.
Camera head of the present invention has: said lens lens barrel and the image formed by described lens combination is carried out to the imaging apparatus of opto-electronic conversion.
The effect of invention
According to the present invention, a kind of lens barrel can be provided and use the camera head of this lens barrel, keeping out of the way from optical axis when can realize image blur correcting function when taking with simple structure and regain lens barrel, and energy saving is excellent.
Accompanying drawing explanation
Fig. 1 is the outside drawing of the digital camera of an example of camera head as the lens unit with present embodiment, and (a) is the front view of digital camera, (b) is rear view.
Fig. 2 is the stereographic map of the lens unit 100 of the lens barrel comprising present embodiment, represents state during shooting.
Fig. 3 is the stereographic map of the lens unit 100 of the lens barrel comprising present embodiment, represents state when regaining lens barrel.
Fig. 4 is structure along IV-IV line cutaway view 2 and the figure seen in the direction of the arrow.
Fig. 5 is the cut-open view of the equidirectional of the state represented when regaining lens barrel.
Fig. 6 is the figure of the track of lens combination when representing zoom.
The figure that figure, Fig. 7 (b) that Fig. 7 (a) is structure along A-A line cutaway view 4 and sees in the direction of the arrow are structure along B-B line cutaway view 4 and see in the direction of the arrow, represents state during shooting.
The cut-open view identical with Fig. 7 (b) that the cut-open view identical with Fig. 7 (a) that Fig. 8 (a) is the state represented when regaining lens barrel, Fig. 8 (b) are the states represented when regaining lens barrel.
Fig. 9 (a) be only chosen the figure of critical piece from Fig. 7 (a), (b) be only chosen the figure of critical piece from Fig. 7 (b), (c) be look up in the arrow C side figure of structure of (b), (d) be the figure of structure of (b) of looking up in arrow DC side.
The stereographic map of the mechanism that Figure 10 (a) makes moving body keep out of the way when being and representing and regain lens barrel, (b) are cut-open views.
Embodiment
Hereinafter, with reference to the accompanying drawings of embodiments of the present invention.Fig. 1 is the outside drawing of the digital camera of an example of camera head as the lens barrel and imaging apparatus with present embodiment.Fig. 1 (a) is the front view of digital camera 1, Fig. 1 (b) is rear view.
As shown in Fig. 1 (a) (b), digital camera 1 keeps the lens barrel of zoom lens and the image pickup part 2 of imaging apparatus and camera body portion 3 to form by having.
The solid-state imager such as lens barrel and CCD, CMOS that image pickup part 2 can carry out the zoom lens of zoom action by maintenance such shown in aftermentioned embodiment is formed, and utilizes solid-state imager that the reference object image obtained via the zoom lens imaging in lens barrel is converted to picture signal.
Camera body portion 3 has: the LCD display part 6 be made up of LCD (LiquidCrystalDisplay: liquid crystal display cells), EVF (ElectronicViewFinder: electronic viewfinder) 7 and the external connection terminals be connected with not shown personal computer by digital camera 1, the picture signal that is taken into by image pickup part 2 is implemented to the signal transacting of regulation, and carry out showing to the image of LCD display part 6, EVF7, to the recording mediums such as not shown storage card image record or transmit such process to the image of personal computer.
Before camera body portion 3, appropriate location, top is provided with flashlamp illuminating part 4.In addition, at the back side in camera body portion 3, be provided with carry out take image display, record image regeneration display LCD display part 6 and EVF7.
On camera body portion 3, be provided with shutter release button 5, near shutter release button 5, be provided with the not shown screening-mode change-over switch carrying out switching setting to " logging mode " and " regeneration mode ".Logging mode is the pattern carrying out arriving from shooting holding state through the process of spectrum assignment the photograph taking of shooting, and regeneration mode is the pattern making the shooting image of card recorded carry out regenerating display on LCD display part 6, EVF7.
At the back side in camera body portion 3, be provided with for carry out reproduced picture frame by frame play, take time for carrying out the regeneration playback switch frame by frame/varifocal switch 9 of varifocal operation.Regenerate playing frame by frame to refer to and camera settings being regeneration mode and the form that shows successively of the LCD display part 6 that the image of card recorded and frame number one coexisted of the reproduced picture in playback switch/varifocal switch 9 frame by frame.In addition, also the image display of subtend LCD display part 6 can carry out change to ascending order direction (shooting order direction) or descending direction (direction contrary with shooting order) and indicate.In addition, the operation of varifocal during shooting regenerates playback switch/varifocal switch 9 frame by frame by operation, makes image pickup optical system as zoom lens to long sight direction or wide-angle direction zoom.
Further, at the back side in camera body portion 3, the EVF change-over switch 8 that the LCD display part 6 and EVF7 for carrying out image display is selected is provided with.
In addition, inner in the bottom surface in camera body portion 3, be provided with the battery (not shown) as the work power supply of digital camera 1.
Fig. 2,3 is stereographic maps of the lens unit 100 of the lens barrel comprising present embodiment, and Fig. 2 represents state during shooting, and Fig. 3 represents state when regaining lens barrel.The figure that Fig. 4 is structure along IV-IV line cutaway view 2 and sees in the direction of the arrow, state when representing shooting, Fig. 5 is the cut-open view of the equidirectional of the state represented when regaining lens barrel.
For the zoom lens of three groups of structures, the lens unit 100 of present embodiment is described.Lens unit 100 is made up of the first lens combination L1, the second lens combination (correcting lens group) L2, the 3rd lens combination L3 successively from object side.And, move along the direction of optical axis O while the first lens combination L1, the second lens combination L2, the 3rd lens combination L3 make mutual group distance change and carry out zoom.In addition, the 3rd lens combination L3 also moves along the direction of optical axis O independently and focuses.
The schematic configuration of lens unit 100 is described with reference to Fig. 4.The base plate 101 being fixed on camera body portion 3 has opening 101a in central authorities, remains IR cutoff filter 102 at its object side.Base plate 101 is provided with stationary magazine creel 104.The inner peripheral surface of stationary magazine creel 104 is provided with not shown cam path and straight ahead guiding groove.
First rotating cylinder 105 is the cylindrical shells of the internal side diameter being incorporated in stationary magazine creel 104, utilize not shown actuator, obtain revolving force via the not shown gear part being arranged on periphery, image side and rotate relative to stationary magazine creel 104, and being moved along optical axis direction with the engaging of above-mentioned cam path by the not shown cam pin being arranged on outside surface.
In the inner circumferential of the first rotating cylinder 105, be provided with the through hole that not shown rotation is transmitted key and supplied the cam pin of the second rotating cylinder 109 through.The inner side of the first rotating cylinder 105 arrange the first straight ahead guiding piece 106 be connected with the first rotating cylinder 105 trough of belt inverted cone (Japanese: バ ヨ ネ ッ ト Knot closes), engage with the straight ahead guiding groove of stationary magazine creel 104 and non rotating together move along optical axis direction with the first rotating cylinder 105.In the inner circumferential of the first straight ahead guiding piece 106, be formed with the straight ahead guiding groove, the cam path of the second rotating cylinder 109 and the straight ahead guiding groove of straight ahead key ring 110 that engage with the second straight ahead guiding piece 107.
In the inner side of the first straight ahead guiding piece 106, be provided with the second straight ahead guiding piece 107, be connected with the second rotating cylinder 109 trough of belt inverted cone, and non rotating ground together moves along optical axis direction with the second rotating cylinder 109.Further, in the inner side of the second straight ahead guiding piece 107, be provided with and the straight ahead guiding groove keeping first holding cylinder 108 of the first lens combination L1 to engage.
First holding cylinder 108 by the second straight ahead guiding piece 107 straight ahead guiding groove non rotating engage with the cam path of the second rotating cylinder 109 periphery, thus to move along optical axis direction.
The inner side of the first holding cylinder 108 is provided with the second rotating cylinder 109.Second rotating cylinder 109 makes the follower peg portion of giving prominence to from periphery, end engage with the groove of the inner circumferential being formed in the first rotating cylinder 105, thus together rotates with rotating cylinder 105.In addition, engage by carrying out cam with the first straight ahead guiding piece 106, thus move along optical axis direction.Second rotating cylinder 109 is connected with straight ahead key ring 110 trough of belt inverted cone.The cam for driving the second holding cylinder 111 is formed in the inner circumferential of the second rotating cylinder 109.
Straight ahead key ring 110 by the first straight ahead guiding piece 106 straight ahead guiding groove non rotating be connected with the second rotating cylinder 109 trough of belt inverted cone, thus to move integratedly along optical axis direction.
In the inner side of the second rotating cylinder 109, be provided with second holding cylinder (mobile lens barrel) 111 of maintenance second lens combination L2.Second holding cylinder 111 is by engaging with straight ahead key ring 110, thus non rotating ground carries out cam with the second rotating cylinder 109 and engages, and thus, moves along optical axis direction.
The object side of the second holding cylinder 111 is provided with tripper 112.Keep the 3rd holding cylinder 113 of the 3rd lens combination L3 to utilize not shown stepper motor etc., can move along optical axis direction independently with other lenses group.
According to said structure, by rotating the first rotating cylinder 105, second holding cylinder 111 of the first lens combination L1 that the first holding cylinder 108 keeps and maintenance the second lens combination L2, and the zoom between wide-angle side and telescope end correspondingly, can move along optical axis direction with changing group distance according to the line chart shown in Fig. 6, keep the 3rd holding cylinder 113 of the 3rd lens combination L3 to utilize stepper motor etc., can move along optical axis direction while group distance be changed according to the line chart shown in Fig. 6 independently.On the other hand, when regaining lens barrel, make the 3rd holding cylinder 113 move to make it close to base plate 101, the first rotating cylinder 105 is rotated round about, thus, the first holding cylinder 108 and the second holding cylinder 111 move close to base plate 101 ground.Now, the second lens combination L2 that the second holding cylinder 111 keeps keeps out of the way on optical axis orthogonal directions, thus can shorten the first holding cylinder 108 and the 3rd holding cylinder 113 interval in the direction of the optical axis, can realize compacter storage.Below, the structure that the second lens combination L2 that the second holding cylinder 111 is kept keeps out of the way on optical axis orthogonal directions is described.
Fig. 7 (a), Fig. 8 (a) are structure along A-A line cutaway view 4 and the figure seen in the direction of the arrow after pulling down tripper 112, Fig. 7 (b), Fig. 8 (b) are structure along B-B line cutaway view 4 and the figure seen in the direction of the arrow, Fig. 7 represents state during shooting, and Fig. 8 represents state when regaining lens barrel.Fig. 9 (a) is that figure, the Fig. 9 (b) only having chosen critical piece from Fig. 7 (a) has only chosen the figure of critical piece from Fig. 7 (b).In addition, for convenience of explanation, the above-below direction of figure is set to Y-direction, left and right directions is set to X-direction.
As shown in Fig. 9 (a), at the plate portion 122b of the moving body 122 using the second lens combination L2 maintenance as correcting lens group, be formed with the lug boss 122e that thickness of slab is thick, centre is formed with elongated hole 122f wherein.This elongated hole 122f engages with the bolster 125 being uprightly arranged at the second holding cylinder 112.Bolster 125 along optical axis direction extension is above fitted together at the Width (diagram Y-direction) of elongated hole 122f and there is not gap with elongated hole 122f, on the length direction (diagram X-direction) of elongated hole 122f, correspondingly can slide with gap value.That is, moving body 122 can rotate centered by bolster 125, and can slide in the longitudinal direction.
As shown in Figure 7,8, two leading axles 120,121 two ends being arranged on the pole shape of the inner circumferential of the second cylindric holding cylinder 112 are configured to, in face orthogonal with the optical axis, have axis respectively.First leading axle 120 extends along Y-direction, and the second leading axle 121 is configured to the first leading axle 120 with scissors junction.
Moving body (lens frame) 122 is configured with at the object side of leading axle 120,121.The cylinder portion 122a of moving body 122 by maintenance second lens combination L2 and the end from cylinder portion 122a only form to side towards the plate portion 122b that radial outside extends.The plate portion 122b of butterfly's wing shape is configured with the first magnet MG1 in the rectangular aperture of the first area 122c suitable with the blade of side, in the rectangular aperture of the second area 122d suitable with the blade of opposite side, be configured with the second magnet MG2.
Further, at the object side of leading axle 120,121, in the second holding cylinder 111, coil CL1, CL2 are installed.When the shooting shown in Fig. 7, the first coil CL1 be in the direction of the optical axis with the first magnet MG1 position in opposite directions, the second coil CL2 be in the direction of the optical axis with the second magnet MG2 position in opposite directions.Near the first coil CL1, be provided with the first Hall element HE1 that the relative shift of the first coil CL1 and the first magnet MG1 is detected, near the second coil CL2, be provided with the second Hall element HE2 that the relative shift of the second coil CL2 and the second magnet MG2 is detected.The first drive division is formed by being configured at the first magnet MG1 of moving body 122 and the second magnet MG2 and being configured at the first coil CL1 of the second holding cylinder 112 and the second coil CL2.Controlled by the energising be energized to the first coil CL1 and the second coil CL2 of this first drive division, lens frame is rotated centered by bolster 125, and make it slide in the longitudinal direction, thus make lens frame movement in face orthogonal with the optical axis carry out image blur correcting.
The plate portion 122b of moving body 122 is provided with the first slide section 123, second slide section 124.As shown in Fig. 9 (d), first slide section 123 is by a pair side surface part 123a, 123b and the cross section コ shape that forms of linking part 123c that side surface part 123a, 123b linked in side, on the forward surface of side surface part 123a, 123b, be formed with sliding bearing 123d, the 123e of the semi-circular cylindrical be made up of the raw material that sliding is good.Plate portion 122b can be held in the first leading axle 120 slidably by the top of sliding bearing 123d, 123e.
As shown in Fig. 9 (c), second slide section 124 similarly, by a pair side surface part 124a, 124b and the cross section コ shape that forms of linking part 124c that side surface part 124a, 124b linked in side, on the forward surface of side surface part 124a, 124b, be formed with sliding bearing 124d, the 124e of the semi-circular cylindrical be made up of the raw material that sliding is good.Plate portion 122b can be held in the second leading axle 121 slidably by the top of sliding bearing 124d, 124e.That is, moving body 122 is held in the second holding cylinder 111 by leading axle 121,122 and can be supported slidably and movingly on optical axis orthogonal directions.
As shown in Fig. 9 (b), moving body 122 has from cylinder portion 122a to the longer outstanding tongue 122g in ground of radial outside.The object side of tongue 122g becomes the first slide section 123, and namely the object side of tongue 122g forms side surface part 123a.On the face, image side of tongue 122g, be formed with two projection 122h, 122i at spaced intervals.
The stereographic map of the mechanism that Figure 10 (a) makes moving body 122 keep out of the way when being and representing and regain lens barrel, (b) are cut-open views.As shown in Figure 10 (b), around the with the level cylindrical portion 111b coaxial with bolster 125, driving body 126 can be configured with rotationally.Driving body 126 has: ring part 126a and the excellent 126b of length radially given prominence to from ring part 126a and stub 126c that can be embedded in cylindrical portion 111b rotatably.The front-end configuration of long excellent 126b between the projection 122h, 122i of tongue 122g, and and has gap between projection 122h, 122i, not abut when image blur correcting.Driving body 126 utilizes wind spring 127 to be biased in the counterclockwise direction in Fig. 10.
In the optical axis direction image side of stub 126c, be configured with the elongated driving chip 128 being installed on base plate 101 (Fig. 2).Driving chip 128 has inclined-plane 128a in object side front end, when regaining lens barrel, the second holding cylinder 111 and base plate 101 close to time, inclined-plane 128a is in the position abutted with stub 126c.The second drive division is formed by driving body 126 and driving chip 128.
Image blur correcting action during shooting is described.In Fig. 7 (a), Fig. 8 (a), when making a video recording, when correspondingly making the second lens combination L2 move in the X direction with the signal from not shown acceleration transducer etc., by powering to the first coil CL1, between itself and the first magnet MG, produce long-range navigation magnetic force Fx, thus moving body 122 and the second lens combination L2 can be made together to move in the X direction.
Now, along with the movement of moving body 122, the first slide section 123 is relative to the first leading axle 120 relative movement in the X direction carrying out engaging in the front of tongue 122g, and the second slide section 124 is relative to the second leading axle 121 relative movement in the X direction.Because slide section 123,124 is cross section コ shapes, therefore, only otherwise connecting portion 123c, 124c restriction, just can relative to leading axle 120,121 freely relative movement.In addition, because moving body 122 to slide movement in the X direction along elongated hole 122f, therefore, bolster 125 can not hinder the movement of moving body 122.Second lens combination L2 amount of movement is in the X direction detected by the first Hall element HE1, can carry out FEEDBACK CONTROL thus.
On the other hand, when with the signal from not shown acceleration transducer etc. correspondingly, the second lens combination L2 is moved in the Y direction, by powering to the second coil CL2, between itself and the second magnet MG2, produce long-range navigation magnetic force Fy.But, because moving body 122 is by bolster 125 pivot suspension, therefore, unshift in the Y direction, and (or counter clockwise direction) rotation along clockwise direction centered by bolster 125.Now, when also powering to the first coil CL1, moving body 122 can be made also to move in the X direction, therefore, by carrying out the power supply of the ormal weight corresponding to the oscillating quantity of moving body 122, corresponding amount of movement in X-direction can be eliminated and the second lens combination L2 is only moved in the Y direction.Second lens combination L2 amount of movement is in the Y direction detected by the second Hall element HE2, can carry out FEEDBACK CONTROL thus.That is, suitably controlled by the delivery of subtend first coil CL1 and the second coil CL2, the second lens combination L2 can be made to move in face orthogonal with the optical axis.
By rotation and the slip of moving body 122 as above, first slide block 123 is relative to the first leading axle 120 relative movement, second slide block 124, relative to the second leading axle 121 relative movement, makes the second lens combination L2 move in face orthogonal with the optical axis and carries out image blur correcting.Image blur correcting is carried out in the scope that the excellent 126b of the length of driving body 126 does not abut with projection 122h, 122i.
Then, action when regaining lens barrel is described.In Figure 10 (a), when taking, under the unreclaimed state of lens barrel, driving chip 128 is in the position of dotted line and is separated with the stub 126c of driving body 126.At this, when making the second holding cylinder 111 close to base plate 101 in the rotation by the first rotating cylinder 105 for regaining lens barrel, the front end of stub 126c abuts with the inclined-plane 128a of driving chip 128, inclined-plane 128a pushes stub 126c, thus, driving body 126 resists the acting force of wind spring 127, rotates along clockwise direction in Fig. 10.So long excellent 126b pushes protrusion 122h, thus, as shown in Figure 8, moving body 122 rotates significantly centered by bolster 125.Now, second slide block 124 departs from from the second leading axle 121 and engages with the guide portion 129 being formed at the second holding cylinder 111, first slide block 123 moves to the inboard of tongue 122g and maintains the state engaged with the first leading axle 120, and therefore, moving body 122 can carry out larger rotation swimmingly.Thus, keep out of the way on optical axis orthogonal directions larger compared with when can make the second lens combination L2 and image blur correcting.
Otch is offered in a part of periphery of the second holding cylinder 111, as shown in Figure 8, when moving body 122 becomes lens barrel retracted state, a part of portion 122a is stretched out from this notch, thus, can the external diameter of the second holding cylinder 111 is suppressed little while also guarantee larger the keeping out of the way of the second lens combination L2.
On the other hand, when returning to shooting state, when second holding cylinder 111 being separated in the reversion by the first rotating cylinder 105 from driving chip 128, stub 126c departs from from inclined-plane 128a.Thus, the acting force of wind spring 127 becomes effective, long excellent 126b is rotated in Fig. 10 in the counterclockwise direction, therefore, grow excellent 126b pushes protrusion 122i and make moving body 122 carry out displacement, the optical axis of the second lens combination L2 can be made to return near the optical axis of other lenses group.
According to the present embodiment, when carrying out image blur correcting, the first drive division is utilized to make moving body 122 rotate relative to bolster 125 and slide and make it move in face orthogonal with the optical axis, when regaining lens barrel, the second drive division is utilized mechanically to make moving body 122 rotate significantly around bolster 125, therefore, by shared bolster 125, moving body 122 can be simplified.Thus, the quality of moving part 122 can be reduced, reduce power consumption during image blur correcting, and, making it mechanically keep out of the way when regaining lens barrel, therefore, can seek energy-conservation.
Optimal way is described.Be preferably, described first drive division utilizes electromagnetic force to drive, and described second drive division snap-fits into row cutting by mechanical type.Thus, when regaining lens barrel, lens frame can be made to rotate and not power consumption.
Be preferably, when regaining lens barrel, described lens frame is stretched out from the periphery of described mobile lens barrel.Thus, the external diameter of described mobile lens barrel can be reduced, can densification be sought.
The present invention is not limited to the embodiment described in instructions, the embodiment described in this instructions, technological thought, for those skilled in the art of this area, obviously comprises other embodiments, variation.The record of instructions and embodiment are only that scope of the present invention is illustrated by described claim for the purpose of illustration.
Description of reference numerals
1 digital camera
2 image pickup parts
3 camera body portions
4 flashlamp illuminating parts
5 shutter release buttons
6 display parts
8 change-over switches
9 varifocal switches
100 lens units
101 base plates
101a opening
102IR cutoff filter
104 stationary magazine creels
105 first rotating cylinders
106 first straight ahead guiding pieces
107 second straight ahead guiding pieces
108 first holding cylinder
109 second rotating cylinders
110 straight ahead key rings
111 second holding cylinder
111a teat
111b cylindrical portion
112 trippers
113 the 3rd holding cylinder
120 first leading axles
121 second leading axles
122 moving bodys
122a cylinder portion
122b plate portion
122c first area
122d second area
122e lug boss
122f elongated hole
122g tongue
122h projection
122i projection
123 first slide section
123a side surface part
123c linking part
123d sliding bearing
124 second slide section
124a side surface part
124c linking part
124d sliding bearing
125 bolsters
126 driving bodies
126a ring part
The long rod of 126b
126c stub
127 springs
128 driving chips
128a inclined-plane
129 guide portion
CL1 first coil
CL2 second coil
HE1 first Hall element
HE2 second Hall element
L1 ~ L3 lens combination
MG1 first magnet
MG2 second magnet
O optical axis
Claims (4)
1. a lens barrel, is characterized in that, has:
Multiple lens combination, described multiple lens combination comprises the image blurring correcting lens group corrected;
Mobile lens barrel, described mobile lens barrel can move in the direction of the optical axis and regain;
Stationary magazine creel, described stationary magazine creel is configured in the outside of described mobile lens barrel;
Bolster, described bolster is arranged at described mobile lens barrel;
Lens frame, it rotates relative to described bolster and slides and described correcting lens group can be kept movably in face orthogonal with the optical axis;
First drive division, when carrying out image blur correcting, described first drive division makes described lens frame move in the face orthogonal with described optical axis; And
Second drive division, when regaining lens barrel, described second drive division makes described lens frame rotate larger when described bolster compares described image blur correcting.
2. lens barrel as claimed in claim 1, is characterized in that,
Described first drive division utilizes electromagnetic force to drive, and described second drive division snap-fits into row cutting by mechanical type.
3. lens barrel as claimed in claim 1 or 2, is characterized in that,
When regaining lens barrel, described lens frame is stretched out from the periphery of described mobile lens barrel.
4. a camera head, is characterized in that, has: the lens barrel according to any one of claims 1 to 3 and the image formed by described lens combination is carried out to the imaging apparatus of opto-electronic conversion.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-068934 | 2013-03-28 | ||
| JP2013068934 | 2013-03-28 | ||
| PCT/JP2014/056428 WO2014156632A1 (en) | 2013-03-28 | 2014-03-12 | Lens barrel and imaging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105103047A true CN105103047A (en) | 2015-11-25 |
Family
ID=51623615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480018036.0A Pending CN105103047A (en) | 2013-03-28 | 2014-03-12 | Lens barrel and imaging device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPWO2014156632A1 (en) |
| CN (1) | CN105103047A (en) |
| WO (1) | WO2014156632A1 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012083709A (en) * | 2010-09-16 | 2012-04-26 | Panasonic Corp | Lens barrel |
| JP2012141401A (en) * | 2010-12-28 | 2012-07-26 | Sony Corp | Image blur correcting device and imaging device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4579716B2 (en) * | 2004-10-19 | 2010-11-10 | キヤノン株式会社 | Retractable lens barrel and imaging device |
| JP2009217243A (en) * | 2008-02-14 | 2009-09-24 | Hoya Corp | Imaging device |
-
2014
- 2014-03-12 JP JP2015508264A patent/JPWO2014156632A1/en active Pending
- 2014-03-12 CN CN201480018036.0A patent/CN105103047A/en active Pending
- 2014-03-12 WO PCT/JP2014/056428 patent/WO2014156632A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012083709A (en) * | 2010-09-16 | 2012-04-26 | Panasonic Corp | Lens barrel |
| JP2012141401A (en) * | 2010-12-28 | 2012-07-26 | Sony Corp | Image blur correcting device and imaging device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014156632A1 (en) | 2014-10-02 |
| JPWO2014156632A1 (en) | 2017-02-16 |
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