CN103123432B - Camera head - Google Patents
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- CN103123432B CN103123432B CN201210418191.4A CN201210418191A CN103123432B CN 103123432 B CN103123432 B CN 103123432B CN 201210418191 A CN201210418191 A CN 201210418191A CN 103123432 B CN103123432 B CN 103123432B
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- Lens Barrels (AREA)
- Adjustment Of Camera Lenses (AREA)
Abstract
The invention provides a kind of camera head, its do not make electromagnetic type linear electric motors and picture blurring compensation device interfere and shrink time slim.Camera head has: lens barrel (1), and it keeps taking lens system, and taking lens system is made up of the multiple lens (21-24) comprised focus lens (24); Imaging apparatus (110), it receives the optical image image data generating that are formed through taking lens system; And picture blurring compensation device (105), it makes, and imaging apparatus (110) is mobile in the face parallel with the sensitive surface of this imaging apparatus carries out the action of picture jitter correction.The feature of camera head is, lens barrel (1) comprises electromagnetic type linear electric motors (18), electromagnetic type linear electric motors (18) drive the focusing driver element of retreating along optical axis to focus lens (24), a part for these electromagnetic type linear electric motors (18) enters in picture blurring compensation device (105), not interfere with picture blurring compensation device (105).
Description
Technical field
The present invention relates to the camera heads such as Electrofax.
Background technology
In recent years, the camera head using the imaging apparatus such as CCD and cmos sensor to take subject is extensively popularized.In these camera heads, the camera head of following structure is adopted to be known: in order to drive movable camera lens frame, particularly keep the camera lens frame of focus lens to retreat in the direction of the optical axis, use motor, drive the screw mandrel rotated and the nut part engaged with this screw mandrel by motor, movable camera lens frame is retreated movement together with nut part, or being driven by VCM makes movable camera lens frame retreat mobile (for example, referring to patent documentation 1 and 2).
Such as, in patent documentation 1, describe the camera head with the lens barrel being equipped with bending image pickup optical system.In this camera head, second group in the lens combination of 5 groups of structures, the 4th group and the 5th group of lens are moving lenss.Wherein, carry out the 5th group of lens of focusing to be supported by the 5th group of lens frame be integrally formed with sleeve.Sleeve has interior threaded part, and interior threaded part rotates with the motor by being configured in imaging apparatus side and the screw mandrel extended in the direction of the optical axis engages, and the leading axle extended in the direction of the optical axis runs through sleeve slidably.Thus, by making motor rotate, the 5th group of lens are driven to retreat in the direction of the optical axis.
Further, according to patent documentation 2, camera head is the camera head being made moving lens movement in the direction of the optical axis by actuators such as voice coil motors.In this camera head, focusing base component 6 fixing (combination) is on shooting base plate 9.Further, focusing base component 6 is fixed with yoke 61,62 and magnet 63.4th holding frame 4 is fixed with the hollow core portion of the coil 41 of the hollow coil 41 with angle barrel shape towards optical axis direction opening.
[patent documentation 1] Japanese Unexamined Patent Publication 2009-133944 publication
[patent documentation 2] Japanese Unexamined Patent Publication 2010-72061 publication
In addition, many digital cameras have the picture blurring compensation device for correcting the flating caused because of the motion etc. of hand during photography.As picture method of compensating for hand shake, the optical profile type being known to dollying element carry out correcting is as jitter correction.In order to carry out the picture jitter correction of this optical profile type, being provided with the picture blurring compensation device for dollying element, imaging apparatus being placed on this as on blurring compensation device.
But, owing to driving the focusing driver element of focus lens and this to interfere as blurring compensation device, thus become the restriction of the miniaturization of camera head.Such as, in the camera head of patent documentation 1, the screw mandrel of focusing driver element is outstanding to imaging apparatus side with the motor being configured in its underpart.Therefore, when being provided with picture blurring compensation device, when observing in the direction of the optical axis, must, at the outside of imaging apparatus configuration motor, to make motor and not interfere as blurring compensation device, cause lens barrel to increase.
Further, in the camera head that patent documentation 2 is recorded, fixed configurations clips the telescopic lens barrel of base component and picture blurring compensation device.And the position of interfering with the picture blurring compensation device of rear side avoided by the motor of focusing and leading axle, is fixed on the peripheral part of the fixed frame of lens barrel.In the structure shown here, the bore of lens barrel can not be reduced.Further, owing to being provided with motor and leading axle at the peripheral part of fixed frame, thus when flashlamp and tripod etc. will be configured again, device must be made to maximize further in order to ensure configurable space, exist in this respect and improve leeway.
Summary of the invention
Therefore, be conceived to this some and the object of the present invention is to provide of completing makes focusing driver element and do not interfere and small-sized camera head as blurring compensation device.
The invention that the 1st technical scheme achieved the above object relates to is a kind of camera head, it is characterized in that having: lens barrel, and it keeps by comprising the taking lens system formed multiple lens of focus lens; Imaging apparatus, it receives the optical image image data generating that are formed through described taking lens system; And picture blurring compensation device, it makes described imaging apparatus carry out the action of picture jitter correction at the face internal shift parallel with the sensitive surface of this imaging apparatus, described lens barrel comprises electromagnetic type linear electric motors, described electromagnetic type linear electric motors driving is described retreats along optical axis to focus lens (also comprising swing lens), a part for these electromagnetic type linear electric motors enters into this as in blurring compensation device, not interfere with described picture blurring compensation device.
In addition, " entering into " mentioned here can be such configuration: " such as; be positioned at the rear (image side) foremost of picture blurring compensation device; not make the rearmost end of electromagnetic type linear electric motors on optical axis or leading axle support portion interfere; or cross the recess formed as otch as the part of the movable part in blurring compensation device or movable part and fixed part; both sides are opposed, not make the rearmost end of the electromagnetic type linear electric motors on optical axis or leading axle support portion interfere ".
Further, " through " refers to have at the through opening of optical axis direction as blurring compensation device, and a part for focusing driver element is in the state be inserted at least in part in this opening.That is, a part for electromagnetic type linear electric motors is without the need to necessarily extending to the rear of picture blurring compensation device.
The feature of the invention that the 2nd technical scheme relates to is, in the camera head that the 1st technical scheme is recorded, and the through described picture blurring compensation device of a part of described electromagnetic type linear electric motors.
The feature of the invention that the 3rd technical scheme relates to is, in the camera head recorded any one of the 1st or the 2nd technical scheme, described have as blurring compensation device: base component, is fixed with described lens barrel thereon; Sliding part, it is supported to can move up the 1st side vertical with described optical axis by this base component; And sensor holding frame, it is supported to can move up the 2nd side vertical with described optical axis and described 1st direction by this sliding part, and support described imaging apparatus, observe from described optical axis direction, the outside of part moving area of through described sensor holding frame in the region of described sliding part of described electromagnetic type linear electric motors.
The feature of the invention that the 4th technical scheme relates to is, in the camera head recorded any one of the 1st or the 2nd technical scheme, the sectional area of main focusing leading axle is greater than the sectional area of secondary focusing leading axle.
The feature of the invention that the 5th technical scheme relates to is, observe described electromagnetic type linear electric motors from object side, the distance that the distance between the driving active line that drive coil and the magnetic flux of magnetic loop intersect and main focusing leading axle is focused between leading axle than described driving active line and pair is short.
According to the present invention, described lens barrel comprises focus lens and electromagnetic type linear electric motors, electromagnetic type linear electric motors drive this to retreat along optical axis to focus lens, a part for these electromagnetic type linear electric motors enters into this as in blurring compensation device, not interfere with described picture blurring compensation device, a kind of electromagnetic type linear electric motors and picture blurring compensation device of not making thus can be provided to interfere and the camera head slim when shrinking.
Accompanying drawing explanation
Fig. 1 is the exploded perspective view that the structure comprising the important part forming the lens barrel of camera head that relates to of an embodiment of the invention and the image unit of sensor unit is shown.
Fig. 2 is the cut-open view of the contraction state of the image unit shown in Fig. 1.
Fig. 3 is the cut-open view of the wide-angle position of the image unit shown in Fig. 1.
Fig. 4 is the cut-open view of the position of looking in the distance of the image unit shown in Fig. 1.
Fig. 5 is the cut-open view of the 4th group of lens of the image unit shown in Fig. 1, the 4th group of frame and focusing driver element.
Fig. 6 is the rear view of the image unit shown in Fig. 1.
Fig. 7 a is the rear view of the 4th group of lens of the image unit that modified example of the present invention relates to, the 4th group of frame and electromagnetic type linear electric motors.
Fig. 7 b is the cut-open view of the 4th group of lens of the image unit that modified example of the present invention relates to, the 4th group of frame and electromagnetic type linear electric motors.
Fig. 7 c is the 4th group of lens of the image unit that modified example of the present invention relates to, the cut-open view of the 4th group of frame, focusing leading axle and secondary focusing leading axle.
Fig. 7 d is the cut-open view of the 4th group of lens of the image unit that modified example of the present invention relates to, the 4th group of lens frame and electromagnetic type linear electric motors.
Fig. 7 e is the cut-open view of the 4th group of lens of the image unit that modified example of the present invention relates to, the 4th group of lens frame, focusing leading axle and leading axle support portion.
Label declaration
1: lens barrel; 13: the four groups of frames; 13a: jut; 13b: sliding part; 18: electromagnetic type linear electric motors, focusing driver element; 18aa, 18ab, 18ac: permanent magnet; 18b: interior yoke; 18ca, 18cb, 18cc: outer yoke; 18cg: accessory; 18ch: the peristome of accessory; 18d: drive coil; 18f: main focusing leading axle; 18h: secondary focusing leading axle; 19:LD main body; 19b: leading axle support portion; 105: as blurring compensation device; 119: sensor holding frame.
Embodiment
Hereinafter, with reference to the accompanying drawings of the camera head that embodiments of the present invention relate to.
In addition, in description of the present embodiment, the optical axis (camera axis) of the photographic optical system in lens barrel is represented with symbol O.Along on the direction (camera axis direction) of this optical axis O, using object side (object side) as front, direction during by each members of frame in this lens barrel is toward the front set to stretches out direction.On the other hand, on the direction along optical axis O, image side (image side) will be become as rear, and each members of frame will be called towards direction during rear and regain direction.Further, the sense of rotation of each component parts in lens barrel represents by the sense of rotation observed from front side.
The camera head of present embodiment is the device using retractable photographic optical system, i.e. lens barrel.This lens barrel is configured to have telescoping mechanism, described telescoping mechanism be configured to make the total length of lens barrel can between photography holding state (photographic state) and contraction state free-extension, and when being in photographic state, stretch out between short focal position (wide-angle side) and long focal position (telescope end) by making multiple members of frame or regain and zoom action (zoom) can be carried out, wherein said photography holding state extends on the direction along optical axis O and extends towards the front of the casing of camera head and give prominence to and can carry out the form of photographing actions, even if the using state of the form that photographing actions is standby, described contraction state is that the state of extending compared with the direction along optical axis O shortens and is accommodated in the casing of camera head and makes lens barrel not carry out the non-working condition of the form of photographing actions.
First, the structure of lens barrel is described with reference to Fig. 1 ~ Fig. 4.
Lens barrel 1 has: be fixed on the fixed frame 2 on the base component 101 of sensor unit 100; Cam frame 5, its frame 2 that is fixed support and when zoom action or contractive action time be driven in rotation, and on the direction along optical axis O by advance and retreat drive; Floating drum wedge 6, it coexists with cam frame 5 one and to retreat on the direction of optical axis O under rotation restriction state; Lead-frame 7, it coexists with cam frame 5 one and to retreat on the direction of optical axis O under rotation restriction state; Rotating the first group of frame 12 being rotated in maintenance first group of lens 21 of retreating on the direction of optical axis O by cam frame 5 under restriction state; Rotating the second group of frame 11 being rotated in maintenance second group of lens 22 of retreating on the direction of optical axis O by cam frame 5 under restriction state; Keep the 3rd group of frame 10 of three lens cluster 23 and support the shutter/three group unit 8 of shutter, described 3rd group of frame 10 and the 3rd group of unit 8 are retreated on the direction of optical axis O by being rotated in of cam frame 5 under rotation restriction state; And keep the 4th group of frame the 13, four group of frame 13 of the 4th group of lens (to focus lens) 24 to be combined on fixed frame 2 in the mode can retreated on the direction along optical axis O.Here, first group of lens, 21, second group of lens 22, three lens cluster 23 and the 4th group of lens 24 form taking lens system.
Rotation when this lens barrel 1 is moved between mobile terminal and mobile terminal, front in the wings by cam frame 5, perform the location of contraction state and photographic state, there are first group of lens, 21, second group of lens 22, three lens cluster 23 and the 4th group of lens 24 successively from the object side of optical axis O to image side under photographic state, further, zoom effect is performed by the allocation rotation of the cam frame 5 at mobile terminal, front place.
Fixed frame 2 is formed as cylindric, and multiple straight groove 2b, 2c of there is cam path 2a and being formed in the direction of the optical axis, this cam path 2a is formed by connecting by the multiple tilting cam groove portion being formed at the inner peripheral portion of fixed frame 2 on the direction tilted relative to optical axis O and the circumferential groove portion that formed on direction circumferentially.The zoom driving unit 17 of the zoom action for carrying out photographic optical system is provided with at the peripheral part of this fixed frame 2, and, the focusing driver element 18 of the focus operation for carrying out photographic optical system is equipped in the inside of fixed frame 2.
Zoom driving unit 17 comprises as the zoom motor 17a in zoom drive source, gear row (rotary transfer machine) 17b transmitting the driving force of zoom motor 17a, the position transducer (not shown) detecting the position of cam frame 5 and wide gear (long gear) 17c etc.And then, by zoom motor 17a, carry out the zoom action of the varifocal optical system (first group of lens 21, second group of lens 22, three lens cluster 23) contributing to zoom action driven on the direction along optical axis O in the photographic optical system of lens barrel 1, and also carry out the contractive action driving lens barrel 1 from photographic state to contraction state.In addition, the wide gear 17c of zoom driving unit 17 is configured in the gear incorporating section 2d of fixed frame 2 in the mode that turning axle is parallel with optical axis O, and is supported for free to rotate with the state exposed in the inner peripheral portion of fixed frame 2.
Focusing driver element 18 comprises: the focusing motor 18a as focusing drive source making motor reel be parallel to optical axis O to configure; Screw mandrel (lead screw) 18b formed as one with the turning axle of focusing motor 18a; Be screwed together in the nut 18c on screw mandrel 18b; With the position transducer (not shown) etc. be made up of optical chopper of the origin position of the focusing optics (the 4th group of lens 24) contributing to focus operation in the photographic optical system of detector lens lens barrel 1.And, by focusing motor 18a, focusing is carried out on the direction along optical axis O to the 4th group of lens 24 and drive.Detailed construction and the action of focusing driver element 18 describe later.
Cam frame 5 is formed as cylindric, is embedded in the inner peripheral portion of fixed frame 2 with state that is free to rotate and that retreat.Quadrate part behind the periphery of cam frame 5, is formed and slidably can be embedded in the multiple cam follower 5a in multiple cam path 2a of the fixed frame 2 and wide gear 17c meshed gears portion 5b with zoom driving unit 17 respectively.
As mentioned above, the cam follower 5a of cam frame 5 is embedded in the cam path 2a of fixed frame 2 in the mode that can be free to slide, and gear part 5b engages with wide gear 17c.Therefore, when driving the zoom motor 17a of zoom driving unit 17 thus drive wide gear 17c to rotate, this driving force is delivered to cam frame 5 via gear part 5b, thus this cam frame 5 is rotated.Like this when cam frame 5 rotates, the cam follower 5a of this cam frame 5 moves along the tilting cam groove portion of the cam path 2a of the inclination of fixed frame 2, thus rotation limit, cam frame 5 limit is forwards stretched out from the position (mobile terminal, rear) being in contraction state until the short focal position of photographic state and wide-angle side (mobile terminal, front).And then, when lens barrel 1 is in photographic state, from the wide-angle side as short focal position in the zoom action the telescope end as long focal position, this cam frame 5 is only driven in a rotational direction in mobile terminal, front, can not retreat because of the circumferential groove portion of cam follower 5a and cam path 2a on the direction along optical axis O.
Further, at the peripheral part of cam frame 5, the direction tilted is formed with first group uses cam path 5c relative to optical axis O, in the inner peripheral portion of cam frame 5, the direction tilted is formed second group uses cam path 5e with cam path 5d and the 3rd group relative to optical axis O.
Floating drum wedge 6 is formed as drum, is embedded in the inner peripheral portion of cam frame 5 in the mode that can relatively rotate freely.At the rear end peripheral part of floating drum wedge 6, projecting toward the outer side have the guide protrusion portion 6a be embedded in the straight groove 2b of fixed frame 2.Thus, this floating drum wedge 6, under the frame 2 that is fixed limits the state rotated, can be retreated mobile with cam frame 5 one in the same way along the direction of optical axis O.
This floating drum wedge 6 is arranged to: the inner peripheral portion being embedded in cam frame 5 be embedded into the state in the circumferential groove 5g of the circular depressions be arranged on the flange part 5f of cam frame 5 at bayonet socket jut 6b under.Thus, floating drum wedge 6 is combined into relatively can rotates relative to cam frame 5 by bayonet socket (bayonet), and can not move relative to retreating on the direction along optical axis O relative to cam frame 5.
And floating drum wedge 6 has second group of being formed in the mode in week inside and outside on the direction along optical axis O with straight groove 6c and the 3rd group with straight groove 6d.
Further, at second group of floating drum wedge 6 with the guide protrusion portion 11a being embedded with second group of frame 11 in straight groove 6c, at the 3rd group with the guide protrusion portion 10b being embedded with the 3rd group of unit 10 in straight groove 6d.Thus, second group of frame 11 and shutter/three group unit 8 are supported for and freely can retreat and carry out rotation restriction to them by floating drum wedge 6.
Lead-frame 7 is formed as cylindric, has the bayonet socket projection (not shown) in the engagement groove (not shown) being embedded in cam frame 5 in rear end inner peripheral portion.Further, in the inner peripheral portion of lead-frame 7, on the direction along optical axis O, be formed for the chimeric straight groove 7b of the cam follower 12a of the rear peripheral part being formed at first group of frame 12.
And lead-frame 7 is configured to be combined with cam frame 5 bayonet socket under the state of the inner peripheral portion being embedded in fixed frame 2.Now, the guide protrusion portion 7a of lead-frame 7 is embedded in the straight groove 2c of fixed frame 2.Thus, lead-frame 7 is same with floating drum wedge 6, under the state limited by rotation relative to fixed frame 2, for the direction along optical axis O, mobile with cam frame 5 one.
Second group of frame 11 is formed as cylindric, is configured to the state be embedded in the inner peripheral portion of floating drum wedge 6.Keep second group of lens 22 in the substantially central portion of this second group of frame 11, at the peripheral part of this second group of frame 11, there is guide protrusion portion 11a projecting laterally and cam follower 11b projecting laterally on this guide protrusion portion 11a.
Guide protrusion portion 11a is embedded in second group of floating drum wedge 6 with in straight groove 6c, and cam follower 11b inserts second group with straight groove 6c, and second group of cam frame 5 be slidably embedded in its arranged outside is with in cam path 5d.Thus, second group of frame 11 is being undertaken by floating drum wedge 6 being driven by advance and retreat by the rotation of cam frame 5 under the state rotating restriction.
Further, second group of frame 11 is configured to: when cam frame 5 is positioned at mobile terminal, rear, and a part for a part for image side and the lens of image side is together embedded into the inner circumferential side of fast doorframe 30.
First group of frame 12 is formed as cylindric, and is configured to be embedded in the state between cam frame 5 and lead-frame 7.First group of lens 21 is maintained at the object side of this first group of frame 12.Further, in the inner peripheral portion of first group of frame 12, to be embedded into first group of the peripheral part being formed at cam frame 5 by the mode in cam path 5c, multiple (such as three) cam follower (not shown) is equally spaced equipped with towards inner side in interior circumferential direction.
And, as mentioned above, the cam follower 12a being formed at the rear end peripheral part of first group of frame 12 is chimeric with the straight groove 7b of the inner peripheral portion being formed at lead-frame 7, and the cam follower being formed at the inner peripheral portion of first group of frame 12 is chimeric with cam path 5c with first group of the peripheral part being formed at cam frame 5.Thus, first group of frame 12, under directed frame 7 has carried out rotating the state limited, is driven by advance and retreat by the rotation of cam frame 5.
Shutter/three group unit 8 is configured to comprise: the fast doorframe 30 keeping tripper; The 3rd group of frame 10 of three lens cluster 23 is kept with the rear side at fast doorframe 30.
Fast doorframe 30 has morphosis in the plate member of the circular shape of opening tripper etc. to be remained on substantially central portion, and tripper comprises the shutter actuator etc. making the blade of central opening opening and closing and drive this blade to make it rotate.
3rd group of frame 10 has the maintaining part 10a of the drum for keeping three lens cluster 23, and this maintaining part 10a is to be fixed on fast doorframe 30 from the rear of fast doorframe 30 state be embedded in fast doorframe 30.Further, be equally spaced provided with multiple (such as three) guide protrusion portion 10b at the front peripheral part of the 3rd group of frame 10 toward the outer side in peripheral direction, these guide protrusion portions 10b is provided with cam follower 10c respectively further toward the outer side.
And, 3rd group of frame 10 is configured to the state of the inside being embedded in floating drum wedge 6, guide protrusion portion 10b is embedded in the 3rd group of floating drum wedge 6 with in straight groove 6d, and through 3rd group of cam follower 10c is embedded into the 3rd group of cam frame 5 with in cam path 5e with straight groove 6d.Thus, the 3rd group of Yong Zhi Jin frame 30 is being undertaken by floating drum wedge 6 being retreated driving by cam frame 5 under the state rotating restriction.
Volute spring 35 is equipped between second group of frame 11 and shutter/three group unit 8.Thus, second group of frame 11 and shutter/three group unit 8 are exerted a force by the direction left each other.One end of volute spring 35 is inserted in the inner peripheral portion of the fast doorframe 30 of shutter/three group unit 8 in chimeric mode, the other end of volute spring 35 is inserted in the peripheral part of the lens retaining part of second group of frame 11 in chimeric mode.
Further, dim light optical filtering (ND optical filtering) 40 is installed in the image side of three lens cluster.By being configured at the image side of three lens cluster, thus be configured at compared with other parts, situation such as between second group of lens 22 and three lens cluster 23, small-sized ND optical filtering can be used.In addition, this ND optical filtering 40 also can not be set.
4th group of frame 13 is for keeping the 4th group of lens 24 and having the roughly discoideus members of frame of circular open at central portion.4th group of frame 13 is supported on the inside of fixed frame 2 in the mode that can retreat in the direction of the optical axis by focusing driver element 18.Further, driver element 18 of focusing is incorporated on fixed frame 2 via as the LD main body 19 of focusing driver element component for fixing and base component 101.
Then, illustrate that focusing driver element 18 is to the 4th group of support of frame 13 and the mechanism of driving.Fig. 5 is the cut-open view comprising the 4th group of lens 24 of the image unit shown in Fig. 1, the 4th group of frame 13 and focusing driver element 18.This figure is simultaneously by the cut-open view of the section of screw mandrel 18c and focusing leading axle 18f described later central axis separately.
Focusing motor 18a has the carriage 18d be integrally formed with the casing of this focusing motor 18a.Carriage 18d have to extend from the sidepiece of the casing of focusing motor 18a to optical axis direction and leading section to the bending shape of the rotation shaft side of motor.The leading section of this carriage 18d supports the leading section of the screw mandrel 18b formed as one with the turning axle of the motor 18a that focuses in the mode that can rotate.Therefore, screw mandrel 18b focusing motor 18a and carriage 18d this 2 place, leading section by dual-gripper.By adopting in such a way, can prevent along with the rotation of screw mandrel 18b and producing vibration, focusing driver element 18 mute can be made.Further, carriage 18d is provided with threaded hole, is fixed in LD main body 19 by focusing motor mounting screw 18e.
And nut 18c screws on screw mandrel 18b with the state being limited rotation by carriage 18d.Therefore, when driving focusing motor 18a, screw mandrel 18b rotates, and nut 18c retreats mobile along screw mandrel along with this rotation.
And, in LD main body 19 and in the position close to focusing motor 18a, be inserted with the main focusing leading axle 18f extended in the direction of the optical axis, and, with the position left of focusing motor on be also inserted with the pair extended in the direction of the optical axis and focus leading axle 18h(reference Fig. 1).Because main focusing leading axle 18f and secondary focusing leading axle 18h runs through the 4th group of frame 13 in the mode that can slide, thus the 4th group of frame 13 can move in the direction of the optical axis along main focusing leading axle 18f and secondary focusing leading axle 18h.Further, owing to being also provided with secondary focusing leading axle 18h except main focusing leading axle 18f, thus can prevent the 4th group of frame 13 from rotating around main focusing leading axle 18f.
And, the peripheral part of screw mandrel 18b through 4th group of frame 13 between focusing motor 18a and nut 18c.On the other hand, on main focusing leading axle 18f, reel and be provided with force application spring between LD main body 19 and the 4th group of frame 13, LD main body 19 and the 4th group of frame 13 are exerted a force by the direction mutually left.Thus, the 4th group of frame 13 abuts with the face at the rear of nut 18c all the time.
In addition, LD main body 19 is connected with comprise to focusing drive with the drive signal line that connects of focusing motor 18a and FPC substrate 117(reference Fig. 2 ~ 4 of origin position signal lines that connect to the control circuit of camera head).
Thus, when screw mandrel 18b is rotated by the driving force of the focusing motor 18a of focusing driver element 18, nut 18c to be retreated driving along screw mandrel 18b.When nut 18c is retreated driving, the 4th group of frame 13 abutted with the face at the rear of nut 18c by along focus leading axle 18f, 18h direction, namely retreat along the direction of optical axis O and drive, thus be adjusted to suitable focusing position when being in photographic state, and be located in predetermined punctured position when contractive action.
In addition, in Figure 5, focus motor 18a, the rearward end of main focusing leading axle 18f and a part for the LD main body 19 chimeric with them than the lens face of the rear side (image side) of the 4th group of lens 24 being positioned at punctured position more rearward to give prominence to.As described later, these partial configurations become through handshake correction apparatus.On the other hand, the not through handshake correction apparatus 105 of secondary focusing leading axle 18h.
Then, the structure of sensor unit 100 is described with reference to Fig. 6.
Sensor unit 100 has the unit carrying out the picture blurring compensation device 105 of picture jitter correction and the imaging apparatus 110 of image data generating.Have (with reference to Fig. 1) as blurring compensation device 105: base component 101; Along Y-direction (the 1st direction) extend be supported on Y leading axle on base component 101 109,111, Y feed screw 112 and in X direction (the 2nd direction) extend and the X feed screw 113 that is supported on base component 101; Being supported to by Y leading axle 111 and Y feed screw 112 can the sliding part 114 of movement in the Y direction; Extend in X direction and the X leading axle 115,116 be supported on sliding part 114; The sensor holding frame 119 that can slide in the X direction is supported to by X feed screw 113 and X leading axle 115,116; Be installed on the optics low pass filtered light microscopic 118(reference Fig. 2 ~ Fig. 4 in sensor holding frame 119) and imaging apparatus 110(reference Fig. 1 ~ Fig. 4); And the Y motor (the 1st motor) 120 be supported on base component 101 and X motor (the 2nd motor) 130(are with reference to Fig. 1).
In addition, X-direction and Y-direction are mutually vertical, and are the directions vertical with optical axis O, are the directions of transverse direction (X-direction) along imaging apparatus 110 and longitudinally (Y-direction).
Y motor 120 via gear row 121, Y feed screw 112 is rotated and sliding part 114 carried out to the stepping motor of the driving of Y-direction.Further, X motor 130 via gear row 131, X feed screw 113 is rotated and sensor holding frame 119 carried out to the stepping motor of the driving of X-direction.The FPC(be connected with pedestal circuit substrate is not shown) be connected with Y motor 120 and X motor 130 and driven.Thus, sensor holding frame 119 is driven along the face parallel with the sensitive surface of imaging apparatus 110 with X motor 130 by Y motor 120, thus corrects the picture shake of the optical image being formed at imaging apparatus 110 via lens barrel 1.
In addition, Y leading axle 111 and X leading axle 116 are equipped with compression helical spring 122,132 respectively.Further, between base component 101 and sliding part 114 and between base component 101 and sensor holding frame 119, suspension is provided with draft helical spring 123,133 respectively.Thus, sliding part 114 and sensor holding frame 119 are exerted a force by origin position respectively.
Imaging apparatus 110 is connected with FPC 141, and is mounted in sensor holding frame 119.In the rear side of this imaging apparatus 110, in sensor holding frame 119, heat sink 142 is installed in the mode clipping FPC141.
Here, the general projection of shape observed from lens barrel 1 side as the base component 101 of blurring compensation device 105 is the shape semicircle and rectangle being carried out in the mode that a limit of the straight line portion with rectangle that make semicircle overlaps combining.The 1st bight 151 among 2 bights of rectangle part is equipped with the 1st drive division 161 comprising Y motor 120 and gear row 121, is equipped with the 2nd drive division 162 comprising X motor 130 and gear row 131 in the 2nd bight 152 as another bight.
Further, the circular arc of the semi-circular portions of base component 101 is along the periphery of the rear end part of fixed frame 2, and the outside in the outside of the base component 101 in the opposition side across optical axis O in the 2nd bight 152, i.e. fixed frame 2, is configured with zoom driving unit 17.The zoom motor 17a of zoom driving unit 17 is connected with the wide gear 17c in the gear incorporating section 2d of fixed frame 2 (with reference to Fig. 1) via gear row 17b.
In the inside of fixed frame 2, position with optical system Bu Gan Wataru is provided with driver element 18 of focusing, under the motor reel state toward the front of focusing motor 18a, focusing motor 18a to be fixed on rearward end in LD main body 19 outstanding and through in picture shake correction unit 105.Further, the rearward end of main focusing leading axle 18f is also being fixed on through picture blurring compensation device 105 under the state in LD main body 19.In addition, in sensor unit 100, arrange notch to observe the mode with opening along optical axis direction between heat sink 142 and sliding part 114, motor 18a and main focusing leading axle 18f is at this notch through on the direction of optical axis in focusing.That is, focusing motor 18a and the gap between the through sliding part 114 of main focusing leading axle 18f and sensor holding frame 119.Further, between focusing motor 18a and main focusing leading axle 18f and heat sink 142 and sliding part 114, there is gap, making when carrying out picture jitter correction, heat sink 142 and sliding part 114 in X direction and/or Y-direction moves time do not contact.When adopting such structure, the external diameter miniaturization of fixed frame can be made.Therefore, flashlamp and tripod screw can be made closer to fixed frame, the miniaturization of camera head can be realized.And, when assembling lens barrel 1 and sensor unit 100, focusing driver element 18 and picture blurring compensation device 105 Bu Gan Wataru, and, from the visual position confirming focusing motor 18a and main focusing leading axle 18f, the rear of picture blurring compensation device 105, thus easily can assemble.
The FPC141 be connected with imaging apparatus 110 extends from imaging apparatus 110 in X direction in the rear side of base component 101.This FPC141 is connected with pedestal circuit substrate, thus the image taken by imaging apparatus 110 is presented in the display device such as not shown liquid crystal panel, and is recorded in recording medium.
The effect of the camera head of the present embodiment formed as above is below described.
First, make camera head be in photographic state in order to starting by camera head etc., by zoom driving unit 17, cam frame 5 dextrad is rotated, lens barrel 1 is stretched out until mobile terminal, front from contraction state (mobile terminal, rear).When cam frame 5 is positioned at mobile terminal, front thus becomes the wide-angle side as short focal position, as shown in Figure 3, each members of frame forwards moves towards the direction along optical axis O, and lens barrel 1 becomes the state of overall elongated.
Then, when zoom adjusts, cam frame 5 rotates in mobile terminal, front, adjusts the position of first group of frame, second group of frame and the 3rd group of frame, to reach the picture multiplying power of expectation.Such as, at the telescope end as long focal position, as shown in Figure 4, lens barrel 1 is in by the state pulled out to greatest extent, and the position of second group of frame and the 3rd group of frame also contrasts this position to adjust.
And, when focusing adjustment, driving focusing driver element 18, driving the 4th group of frame 13 to retreat in the direction of the optical axis, the position of the optical axis direction of adjustment the 4th group of lens 24.Thereby, it is possible to carry out the shooting having carried out the image of focusing adjustment as multiplying power expected.
And, when making a video recording, the sensors such as not shown angular-rate sensor are used to detect the dynamic direction of hand shaking, drive the 1st drive division 161 as blurring compensation device 105 and the 2nd drive division 162, thus to the side in the opposite direction driving sensor holding frame 119 dynamic with hand shaking, picture shake is corrected.At this moment, focusing motor 18a and the through picture blurring compensation device 105 of main focusing leading axle 18f, but due between focusing motor 18a and focusing leading axle 18f and picture blurring compensation device, observe from optical axis direction and be provided with gap, thus can not hinder as jitter correction.
And, gap between the sliding part 114 of focusing motor 18a and the through picture blurring compensation device 105 of main focusing leading axle 18f and sensor holding frame 119, the position thus without the need to avoiding the rear side of the position configured as blurring compensation device 105 configures focusing motor 18a and main focusing leading axle 18f.Therefore, the bore miniaturization of fixed frame 2 can be made.As a result, flashlamp and tripod screw etc. can be made to configure close to the fixed frame 2 of camera head main body, the miniaturization of energy implement device entirety.
Further, at the end of the photographic state such as the pent situation of power supply of camera head, cam frame 5 left-handed rotation of lens barrel 1, with the rotation of cam frame 5, each members of frame moves to the rear along optical axis O, becomes the contraction state shown in Fig. 2.At this moment, effectively utilize the space, blind area (dead space) formed in the lens barrel at first group of lens 21 rear of largest diameter and receive focusing motor 18a and main focusing leading axle 18f.
As mentioned above, according to the present embodiment, lens barrel 1 comprises as the 4th group of lens 24 of focus lens and the focusing driver element 18 along optical axis driving the 4th group of lens 24 advance and retreat, as the focusing motor 18a of a part of focusing driver element 18 and main focusing leading axle 18f not enter into described and carry out through as blurring compensation device 105 Gan Wataru as the state in blurring compensation device 105, thus can make the bore miniaturization of fixed frame 2, apparatus main body miniaturization can be made.
In addition, through as blurring compensation device 105 be not limited to focus motor 18a and main focusing leading axle 18f, also can be secondary leading axle 18h and focusing driver element 18 other inscapes.Or, also can be that the only side focused in motor 18a and main focusing leading axle 18f is in the state " the electromagnetic linear motor of such as optical axis or the rearmost end of leading axle support portion are positioned at the rear (image side) foremost of picture blurring compensation device in the mode of not interfering, or form notch recesses in the part as the movable part in blurring compensation device " entering into picture blurring compensation device 105.Particularly, by making under the state entering into picture blurring compensation device 105 as the focusing motor 18a of larger parts, in the part as blurring compensation device, through hole is set, make the configuration of the lens under contraction state and camera lens frame become easy, the miniaturization of camera head 1 can be realized.
And, observe along optical axis direction, the outside of focusing motor 18a and main focusing leading axle 18f moving area of through sensor holding frame 119 in the region of the sliding part 114 of picture blurring compensation device 105, thus can at the position configuration focusing driver element 18 closer to imaging apparatus 110.Therefore, lens barrel 1 and camera head integral miniaturization can be made further.
(modified example)
Fig. 7 a to Fig. 7 e is rear view and the cut-open view of the moving coil type electromagnetic linear motor that the modified example of the focusing driver element of present embodiment relates to.
Here, as shown in Fig. 7 a to Fig. 7 e, the electromagnetic linear motor of the moving coil type replacing focusing driver element is described.
Particularly, the electromagnetic type linear electric motors 18 of the driving mechanism using the 4th group of lens 24 of hollow coil are described.
Fig. 7 a is the rear view of the 4th group of lens 24, the 4th group of frame 13 and electromagnetic type driver element 18.Fig. 7 b to Fig. 7 e is the cut-open view of the 4th group of lens 24, the 4th group of frame 13 and electromagnetic type linear electric motors 18.The structure of the electromagnetic type linear electric motors 18 be configured in the LD main body 19 of the parts fixed as electromagnetic type linear electric motors is described.
3 outer yoke 18ca ~ 18cc are the rectangular shapes extended towards optical axis direction, and outer yoke 18ca uses mounting screw 18e to be fixed on the vertical component effect 19a of LD main body 19.And the corner of 3 outer yokes is by the accessory 18cg(magnetic material of rectangular shape) combined formation recess and integrated.Interior yoke 18b is the rectangular shape extended towards optical axis direction, and two ends are fixed on side walls 18ce, the 18cf of accessory 18cg.3 permanent magnet 18aa ~ 18ac are the rectangular shapes being magnetized at thickness direction, extending towards optical axis direction, are fixed on the tabular surface of 3 outer yoke 18ca ~ 18cc.
Further, the side walls 18cf of accessory 18cg and permanent magnet 18aa ~ 18ac observes towards optical axis direction has gap in image side, and object side abuts with the end face of permanent magnet 18aa ~ 18ac and the side walls 18ce of accessory 18cg.And permanent magnet 18aa ~ 18ac and interior yoke 18b forms magnetic gap.The jut 13a of the 4th group of frame 13 is assembled in the peristome 18ch of accessory 18cg, drive coil 18d observes from object side and form hollow shape with " mouth word " in the plane vertical with optical axis direction, is adhesively fixed on the jut 13a of the 4th group of frame 13.And, be configured in above-mentioned magnetic gap.Further, secondary focusing leading axle 18h is fixed in LD main body 19, adopts and axially parallel configuration when being assembled into.Secondary focusing leading axle 18h is inserted in the sliding part 13c of the 4th group of frame 13, and the 4th group of frame 13 is supported by the leading axle that main focusing leading axle 18f is parallel with optical axis direction with secondary focusing leading axle 18h these 2.By this support, rotation when the 4th group of frame 13 is moved towards optical axis direction stops (preventing the generation of the turning moment of the 4th group of frame 13).
The through picture blurring compensation device in leading section of accessory 18cg is configured to like this as shown in Fig. 7 b ~ 7d.Thus, can provide do not make a part for electromagnetic type linear electric motors 18 with picture blurring compensation device interfere and small-sized camera head.
And, by 3 faces of the drive coil 18d for the 4th group of frame 13,3 permanent magnet 18aa ~ ac are adopted arranged opposite, can improve when driving the 4th group of lens 24 of the 4th group of frame 13 towards optical axis direction and drive sensitivity.
In addition, outer yoke 18ca ~ 18cc sheet metal that side walls 18ce, the 18cf of the accessory 18cg and accessory 18cg that make use of magnetic material can have been adopted to carry out is integrated processing.Then, change focusing driver element into, the action of electromagnetic type linear electric motors 18 is described.
Never illustrated focusing driving circuit provides applying voltage to drive coil 18d.Magnetic loop is formed by permanent magnet 18aa, the 18ab of electromagnetic type linear electric motors 18,18ac, outer yoke 18ca, 18cb, 18cc, interior yoke 18b and magnetic gap.Utilize the thrust (the driving active line also referred to as the current cross of magnetic flux and coil) being applied to the voltage of drive coil 18d and this magnetic loop, the 4th group of frame 13 maintaining the 4th group of lens 24 is moved towards optical axis direction.
Now, the 4th group of frame 13 is guided by main focusing leading axle 18f and secondary focusing leading axle 18h.And, in LD main body 19, in the position close with using the focusing driver element 18 of electromagnetic type linear electric motors, be inserted with the main focusing leading axle 18f extended towards optical axis direction, and, in the position be separated with electromagnetic type linear electric motors 18, be also inserted with the pair focusing leading axle 18h(reference Fig. 1 extended towards optical axis direction).Due to main focusing leading axle 18f and secondary focusing leading axle 18h through 4th group of frame 13 slidably, thus the 4th group of frame 13 can move along main focusing leading axle 18f and secondary focusing leading axle 18h towards optical axis direction.
Further, except main focusing leading axle 18f, be also provided with secondary focusing leading axle 18h, thus can prevent the 4th group of frame 13 from rotating around main focusing leading axle 18f.
In addition, in fig .7b, more rear is outstanding to the lens face of the rear side (image side) of the 4th group of lens 24 than punctured position for the rearward end of electromagnetic type driver element 18 and main focusing leading axle 18f and a part for the LD main body 19 chimeric with them.As described later, these partial configurations become through handshake correction apparatus.On the other hand, the not through handshake correction apparatus 105 of secondary focusing leading axle 18h.There is illustrated the electromagnetic type linear electric motors of moving coil type, but also can be replaced into the movable magnet type linear electric motors being fixed with 3 moving-magnets at movable part.In addition, " entering into " mentioned here can be: " part for the movable part such as; the rearmost end of the electromagnetic type linear electric motors on optical axis and leading axle support portion 19b is positioned at the rear (image side) foremost of picture blurring compensation device in the mode of not interfering, or in picture blurring compensation device forms notch recesses ".
Further, " through " refers to have at the through opening of optical axis direction as blurring compensation device, and a part for focusing driver element is in the state be inserted at least in part in this opening.That is, as shown in figure 7e, a part of leading axle support portion 19b is without the need to necessarily extending to the rear of picture blurring compensation device.And, can be that to enter into as the state in blurring compensation device 105 be " such as, in picture blurring compensation device 105, forming notch recesses in a part (object side) for movable part " for the parts (assembling the parts of the outer yoke 18ca ~ 18cc be configured in LD main body 19, interior yoke 18b and permanent magnet 18aa ~ 18ac) of electromagnetic type linear electric motors.Specifically, at the object side of optical axis direction, there is recess (otch) as the movable member being equipped with imaging apparatus in blurring compensation device, this recess and have gap on the optical axis direction of electromagnetic type linear electric motors 18 between the end of image side, both sides are arranged opposite.Further, the fixed part as blurring compensation device 10 has recess at the object side of optical axis direction, this recess and have gap on the optical axis direction of electromagnetic type linear electric motors 18 between the end of image side, and both sides are arranged opposite.Or, the movable member being equipped with image unit as blurring compensation device 10 and fixed part 102 both sides as blurring compensation device 10 cross the object side of optical axis direction and have recess, this recess and electromagnetic type linear electric motors 18 between the end of image side, there is gap in the direction of the optical axis, both sides are arranged opposite.
LD main body 19 is connected with FPC substrate 117, FPC substrate 117 comprise the drive signal line of the moving coil 18d of the electromagnetic type linear electric motors 18 leading to focusing drive source and lead to the origin position signal lines of control circuit of camera head.
Main focusing leading axle is necessary guiding 4 groups of lens and does not make it depart from optical axis, has enough rigidity.When making bending shaft in rigidity deficiency, 4 groups of lens run-off the straights or bias, cause the degeneration of optical property.
When there is vibration in axle, AF performance degradation.Further, for dynamic image etc., discomfort is brought to user.Even if secondary focusing leading axle bends, 4 groups of lens also not run-off the straights.Further, configure by separating spacing with main focusing leading axle, the bending bias caused that can reduce because of axle produces.Therefore, main focusing leading axle can be made thinner, the miniaturization of lens barrel and camera head entirety can be realized.Electromagnetic type linear electric motors are configured near main focusing leading axle, when wanting to drive in the position be separated with main focusing leading axle, producing vibration sometimes or produce warpage and can not drive.
In this case, although can drive by configuring multiple electromagnetic type linear electric motors, cause the complicated of cost increase and control.Cause the maximization of lens barrel and camera head entirety.As shown in Figure 7a, MR sensor installation portion 18i is provided with in a side of the 4th group of frame 13.(MR sensor and magnetic scale not shown).This MR sensor installation portion 18i is configured with and the 4th group of integrated Hall element (or reflective optical system of kirschner effect detection) engaged of frame 13.And, the detection faces of MR sensor and the outside of accessory close, adopt opposed position.4th group of frame 13 and MR sensor move integratedly in the direction of the optical axis.Close to MR sensor and the small pieces of opposed NS pole, position are configured on the outside surface of accessory 18g, this accessory 18g has been fixed with in a row bond arrangement magnetic scale of multiple (being formed with preset space length).The amplitude signal expected is exported by the mobile of MR sensor (Hall element).Control circuit (CPU) signal intensity to MR sensor counts and generates interpolated signal near zero crossing near target location, thus be energized to the drive coil 18d be configured in integratedly on the 4th group of frame 13, carry out high-speed mobile action in the direction of the optical axis, make the 4th of the 4th group of frame 13 the group of lens 24 at a high speed and move to target location accurately to stop.In this case, use this MR sensor and magnetic scale, at the scope desired locations being positioned at the 4th group of lens 24 kept by the 4th group of frame 13 decided at the higher level but not officially announced of movement between most proximal end and unlimited far-end by focusing driving during photography.Further, when shrinking, the 4th group of lens 24 of the 4th group of frame 13 move to and stop near imaging apparatus side.And, be positioned at the initial holding fix (also referred to as initial position) stopped from punctured position by the starting of camera.Double dot dash line in 4th group of lens 24(Fig. 7 a figure-7d of the 4th group of frame 13 represents) position near object side in camera coverage is the maximum projecting position of the 4th group of lens 24 kept by the 4th group of frame 13.
As modified example, when not shown magnetic scale being directly installed on (use bonding agent or double sticky tape attach) on the outer yoke 18cb of magnetic material, be error detection under impact due to the Hall element leakage magnetic flux of yoke outside, thus the flat board of nonmagnetic substance (such as, synthetic resin, aluminium, SUS material) can be inserted between magnetic scale and outer yoke 18cb.
Other modified example is as follows.
Such as, group lens 16 of the 4th shown in Fig. 5 and Figure 10 of Japanese Unexamined Patent Publication 2005-234075 or the 3rd group of lens 54 can be made for moving back and forth (swing) along optical axis direction slight distance.
Further, modified example of the present invention utilizes the electromagnetic type linear electric motors of moving coil type and is described.But certainly can use movable magnet type linear electric motors (also referred to as electromagnetic type linear electric motors).In this situation, a part for electromagnetic type linearity coil is replaced as yoke and fixed coil in the LD main body that is configured at as the component for fixing of electromagnetic type linear electric motors.
Claims (4)
1. a camera head, is characterized in that, has: lens barrel, and it keeps by comprising the taking lens system formed multiple lens of focus lens; Imaging apparatus, it receives the optical image image data generating that are formed through described taking lens system; And picture blurring compensation device, it makes described imaging apparatus carry out the action of picture jitter correction at the face internal shift parallel with the sensitive surface of this imaging apparatus,
Described lens barrel comprises electromagnetic type linear electric motors, and described electromagnetic type linear electric motors driving is described retreats along optical axis to focus lens, and a part for these electromagnetic type linear electric motors enters into this as in blurring compensation device, not interfere with described picture blurring compensation device,
Described have as blurring compensation device: base component, is fixed with described lens barrel thereon; Sliding part, it is supported to can move up the 1st side vertical with described optical axis by this base component; And sensor holding frame, it is supported to can move up the 2nd side vertical with described optical axis and described 1st direction by this sliding part, and supports described imaging apparatus,
Observe from described optical axis direction, the outside of part moving area of through described sensor holding frame in the region of described sliding part of described electromagnetic type linear electric motors.
2. camera head according to claim 1, is characterized in that, the parts of described electromagnetic type linear electric motors enters into and is describedly formed with through hole or otch as referring in blurring compensation device in this part as blurring compensation device.
3. camera head according to claim 1 and 2, is characterized in that, the sectional area of main focusing leading axle is greater than the sectional area of secondary focusing leading axle.
4. camera head according to claim 3, it is characterized in that, observe described electromagnetic type linear electric motors from object side, the distance that the distance between the driving active line that drive coil and the magnetic flux of magnetic loop intersect and main focusing leading axle is focused between leading axle than described driving active line and pair is short.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-251429 | 2011-11-17 | ||
| JP2011251429A JP2013109005A (en) | 2011-11-17 | 2011-11-17 | Imaging apparatus |
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| Publication Number | Publication Date |
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| CN103123432A CN103123432A (en) | 2013-05-29 |
| CN103123432B true CN103123432B (en) | 2015-11-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210418191.4A Expired - Fee Related CN103123432B (en) | 2011-11-17 | 2012-10-26 | Camera head |
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| CN (1) | CN103123432B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015052649A (en) * | 2013-09-05 | 2015-03-19 | オリンパスイメージング株式会社 | Lens barrel |
| CN103605250A (en) * | 2013-11-06 | 2014-02-26 | 中山联合光电科技有限公司 | Digital camera anti-vibration displacement compensation device |
| JP6481242B2 (en) * | 2014-10-29 | 2019-03-13 | 新シコー科技株式会社 | LENS DRIVE DEVICE, CAMERA DEVICE, AND ELECTRONIC DEVICE |
| JP6445223B2 (en) | 2016-04-28 | 2018-12-26 | 富士フイルム株式会社 | Optical apparatus and imaging apparatus |
| CN107193106A (en) * | 2017-04-12 | 2017-09-22 | 瑞声科技(新加坡)有限公司 | Lens driving apparatus |
| CN108919457A (en) * | 2018-09-25 | 2018-11-30 | 中山联合光电科技股份有限公司 | A kind of power zoom device |
| CN109445233B (en) * | 2018-12-28 | 2023-07-14 | 中山联合光电科技股份有限公司 | Anti-shake structure of large-focus long-stroke lens |
| JP6776392B2 (en) * | 2019-03-29 | 2020-10-28 | エーエーシー コミュニケーション テクノロジーズ（ジョウシュウ）カンパニーリミテッド | Camera lens drive |
| JP7465063B2 (en) * | 2019-03-29 | 2024-04-10 | ニデックインスツルメンツ株式会社 | Optical Unit |
| JP6960985B2 (en) * | 2019-12-27 | 2021-11-05 | エーエーシー オプティックス ソリューションズ ピーティーイー リミテッド | Imaging device with image stabilization function |
| JP2022097994A (en) * | 2020-12-21 | 2022-07-01 | ジョウシュウシ レイテック オプトロニクス カンパニーリミテッド | Anti-vibration mechanism for photographing device, optical system, camera, and electronic device |
| CN114859498A (en) * | 2021-02-05 | 2022-08-05 | 信泰光学(深圳)有限公司 | Zoom lens |
| CN116047704A (en) * | 2021-08-12 | 2023-05-02 | 宁波舜宇光电信息有限公司 | Camera module |
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| US6091900A (en) * | 1997-04-18 | 2000-07-18 | Canon Kabushiki Kaisha | Lens barrel and image pickup apparatus |
| CN102016708A (en) * | 2008-04-30 | 2011-04-13 | 日本电产三协株式会社 | Optical unit having deflection correcting function |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006235133A (en) * | 2005-02-24 | 2006-09-07 | Nagano Kogaku Kenkyusho:Kk | Zoom lens drive mechanism |
| JP2009133944A (en) * | 2007-11-29 | 2009-06-18 | Sony Corp | Lens driving device, lens barrel, imaging device, and method of positioning movable lens frame |
| JP5072787B2 (en) * | 2008-09-16 | 2012-11-14 | キヤノン株式会社 | Optical equipment |
-
2011
- 2011-11-17 JP JP2011251429A patent/JP2013109005A/en active Pending
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- 2012-10-26 CN CN201210418191.4A patent/CN103123432B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6091900A (en) * | 1997-04-18 | 2000-07-18 | Canon Kabushiki Kaisha | Lens barrel and image pickup apparatus |
| CN102016708A (en) * | 2008-04-30 | 2011-04-13 | 日本电产三协株式会社 | Optical unit having deflection correcting function |
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| JP2013109005A (en) | 2013-06-06 |
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