WO2006054535A1 - レンズ鏡胴及び該レンズ鏡胴を備えた撮像装置並びに該撮像装置の製造方法 - Google Patents
レンズ鏡胴及び該レンズ鏡胴を備えた撮像装置並びに該撮像装置の製造方法 Download PDFInfo
- Publication number
- WO2006054535A1 WO2006054535A1 PCT/JP2005/020911 JP2005020911W WO2006054535A1 WO 2006054535 A1 WO2006054535 A1 WO 2006054535A1 JP 2005020911 W JP2005020911 W JP 2005020911W WO 2006054535 A1 WO2006054535 A1 WO 2006054535A1
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- WO
- WIPO (PCT)
- Prior art keywords
- lens frame
- lens
- memory alloy
- shape memory
- optical axis
- Prior art date
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/009—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras having zoom function
-
- 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
Definitions
- Lens barrel imaging device including the lens barrel, and method for manufacturing the imaging device
- the present invention relates to a lens barrel configured to move a lens group in the optical axis direction using a shape memory alloy formed in a string shape, an imaging device including the lens barrel, and the imaging device
- the lens barrel is suitable for a small and thin imaging device built in a portable terminal or the like.
- a lens group is generally moved by driving a lens barrel by a motor and a gear train connected to the motor.
- a lens group that is moved using a shape memory alloy instead of a motor and a gear train connected to the motor, thereby saving the camera space.
- a string-shaped shape memory alloy and a detecting means for detecting the position of the driven body are provided. That control the position of the driven body by dividing the string-shaped shape memory alloy in the longitudinal direction and individually controlling it is disclosed (for example, see Patent Document 1).
- a drive mechanism in which a string-like shape memory alloy is used in a dogleg shape, abuts against a driven body at a substantially central portion, and both ends are fixed (for example, see Patent Document 2). ).
- the imaging device built in the portable terminal also has an AF function as well as a macro function by moving the lens group in order to obtain a higher quality image. And those with an optical zoom are being installed.
- the imaging device built in the portable terminal is very, for example, lcm 3 or less. It is required to be small.
- the driving device having the position detection means of the driven body described in Patent Document 1 has an advantage that the position control of the driven body is accurate, but is built in the portable terminal.
- the detection means requires a space and the image pickup apparatus becomes large.
- the drive device that divides the shape memory alloy in the longitudinal direction and controls each shape memory alloy has a complicated circuit configuration for control, and the shape memory alloy is linearly arranged. Therefore, there is a problem that it cannot be summarized in a small size.
- the use of the string-like shape memory alloy described in Patent Document 2 in a dogleg shape is not so problematic for incorporation in a large apparatus such as binoculars.
- the fixed part at the end protrudes greatly on both sides of the driven body, and some device is required to be applied to a small-sized imaging device to be incorporated in a portable terminal.
- those using the string-like shape memory alloy described in Patent Document 2 in a square shape also have position detection means, and perform accurate position control without the detection means. Is difficult and has the disadvantage of increasing the size as well.
- a detection means for detecting the position of the lens group is incorporated. There is no space to be used, and if there is an individual difference in the length of the incorporated shape memory alloy, there is a problem that the uniform driving method causes a difference in the contraction amount and an individual difference in the position of the lens group.
- Patent Document 1 Japanese Patent Laid-Open No. 10-307628
- Patent Document 2 Japanese Patent Laid-Open No. 2002-99019
- the present invention provides a lens barrel that uses a shape memory alloy to move a lens group to perform focus adjustment, and is incorporated in a portable terminal with a minimum front area where volumetric efficiency is high.
- the object is to obtain a lens barrel of a suitable small and thin imaging device.
- the present invention does not require a detecting means when moving a lens group using a shape memory alloy, and even if there is an individual difference in the length of the incorporated shape memory alloy, a uniform driving method is provided. so It is an object of the present invention to obtain a small and thin lens barrel capable of focusing on a predetermined subject distance and an imaging device suitable for incorporation in a portable terminal equipped with this lens barrel.
- the present invention includes the following configurations and methods.
- a lens group for guiding subject light a lens frame that holds the lens group, a shape memory alloy formed in a string shape that moves the lens frame in the optical axis direction, and an optical axis of the lens group
- a pair of guide shafts formed substantially in parallel, and integrally forming a cylindrical portion through which one of the guide shafts penetrates the lens frame, and the string-like shape memory alloy has a substantially central portion thereof.
- a lens barrel characterized in that the lens barrel contacts with a part of the lens frame, and both ends thereof are fixed at positions sandwiching a line connecting the optical axis of the lens group and the center of the cylindrical portion.
- a lens group for guiding subject light a first lens frame containing the lens group, and a second lens frame holding the first lens frame movably in the optical axis direction of the lens group
- An alloy, a base plate for fixing the shape-memory alloy, and a contact member for contacting a part of the second lens frame to the base plate, the position of the contact portion of the contact member being adjustable A lens barrel characterized by that.
- the second lens frame which holds the first lens frame containing the lens group for guiding the subject light so as to be movable in the optical axis direction of the lens group, is moved by moving the contact member. From the position where the contact member and a part of the second lens frame contact each other, the shape memory alloy fixed to the base plate resists the biasing member by a predetermined amount in a direction substantially parallel to the optical axis of the lens group. And moving the first lens frame in the optical axis direction of the lens group to adjust the focus with respect to the second lens frame. Manufacturing method of imaging apparatus. Brief Description of Drawings
- FIG. 1 is an external view of a mobile phone as an example of a mobile terminal provided with an imaging device according to an embodiment.
- FIG. 2 is a perspective view when the imaging apparatus according to the embodiment is in a unit state.
- FIG. 3 is a cross-sectional view showing the internal structure of the imaging apparatus.
- FIG. 4 is a perspective view showing a lens barrel inside the imaging apparatus.
- FIG. 5 is a front view showing the arrangement of components of a lens barrel inside the imaging apparatus.
- FIG. 6 is a schematic diagram showing the relationship between each portion where a string-like shape memory alloy is stretched.
- FIG. 7 is a schematic diagram showing an example of the adjustment order of each part after the string-shaped shape memory alloy is assembled and the state of each related part at that time.
- FIG. 8 is a schematic diagram showing another example of the adjustment order of each part after the string-shaped shape memory alloy is assembled and the state of each related part at that time.
- FIG. 1 is an external view of a mobile phone T that is an example of a mobile terminal provided with the imaging device according to the embodiment.
- an upper housing 71 as a case having display screens D1 and D2 and a lower housing 72 having operation buttons P are connected via a hinge 73.
- the imaging device 100 is built below the display screen D2 in the upper housing 71, and is arranged so that the imaging device 100 can capture the outer surface side force light of the upper housing 71.
- the position of the imaging device 100 may be arranged above or on the side of the display screen D2 in the upper casing 71.
- the mobile phone is not limited to a folding type.
- FIG. 2 is a perspective view when the imaging apparatus according to the embodiment is in a unit state.
- the outer surface of the imaging apparatus has a box-shaped lid member 12 having an opening so that the lens group 11 can capture subject light, and a lid member 12 by a screw 14.
- a printed circuit board 31 fixed to the lower surface of the ground plate 13 and having an image sensor mounted therein, and connected to the printed circuit board 31.
- the flexible printed circuit board 32 is made up of.
- a flexible printed board 32f for supplying a current to a shape memory alloy described later is disposed.
- the flexible printed circuit board 32f may be integrated with the flexible printed circuit board 32 or separately.
- the flexible printed circuit board 32 is formed with a contact portion 32t for connecting to another board of the mobile terminal, and a reinforcing plate 33 is glued to the back surface.
- O is the optical axis of the lens group 11.
- the contact portion 32t schematically shows a force of 20 pins or more for a power source, a control signal, an image signal output, an input terminal to the shape memory alloy, and the like.
- FIG. 3 the same reference numerals are assigned to the same functional members.
- FIG. 3 is a cross-sectional view showing the internal structure of the imaging apparatus. This figure shows a lens barrel inside the imaging apparatus, cut along the line FF shown in FIG.
- FIG. 4 is a perspective view showing a lens barrel inside the imaging apparatus. This figure shows a state in which the lid member 12, the printed board 31, and the flexible printed boards 32 and 32f are removed from the imaging apparatus 100 shown in FIG.
- FIG. 5 is a front view showing the arrangement of components of the lens barrel inside the imaging apparatus.
- FIG. 3 is a view of the lens barrel shown in FIG. 3 as viewed from the subject side in the direction of the optical axis O.
- the lens barrel in the imaging apparatus 100 includes a first lens frame 17 (hereinafter also referred to as a lens frame 17) that includes a lens group 11 composed of a single lens or a plurality of lenses, and the mirror.
- a second lens frame 18 (hereinafter also referred to as a lens frame 18) that holds the lens frame 17 is disposed outside the frame 17. In other words, the lens group 11 is held by the lens frame 17 and the lens frame 18.
- the lens frame 17 and the lens frame 18 are screwed together by screw portions 17 ⁇ and 18 ⁇ , and the lens frame 17 is rotated with respect to the lens frame 18 by rotating the lens frame 17 with respect to the lens frame 18. It can be moved in the ⁇ direction. Note that the lens frame 17 and the lens frame 18 may be moved relative to each other in the direction of the optical axis in a helicoid or other configuration.
- the base plate 13 is formed in a substantially quadrangular shape when viewed from the direction of the optical axis ⁇ , and a guide shaft 15 is implanted in the base plate 13 in a substantially diagonal position across the optical axis ⁇ .
- the guide shaft 16 is formed in the body. Note that the guide shaft 15 may also be formed integrally with the base plate 13, or the guide shaft 16 may be implanted.
- the lens frame 18 is formed with a cylindrical portion 18 ⁇ through which the guide shaft 15 is fitted and penetrated, and a U-shaped engaging portion 18u that engages with the guide shaft 16 is formed. Is formed. This makes the mirror
- the frame 18 is movable in the optical axis direction along the guide shafts 15 and 16, and the lens frame 17 and the lens group 11 are also movable in the optical axis direction together with the lens frame 18.
- the cylindrical portion 18p is urged in the axial direction of the guide shaft 15 by a compression coil panel 19 that is an urging member.
- the lens group 11 is biased toward the image sensor 34 disposed behind the lens group 11.
- a protrusion 18t is formed on the side surface of the lens frame 18 in a body-like manner.
- a boss 20 is formed on the base plate 13, and a screw 21 is assembled in a hole (not shown) of the boss 20.
- the protrusion 18t is in contact with the head of the screw 21.
- the lens frame 18 is urged toward the image pickup element by the compression coil panel 19 that is an urging member, but a protrusion 18t is formed on the head of the screw 21 that is a contact member disposed on the base plate 13. By the contact, the position of the lens frame 18 on the image sensor 34 side is determined.
- the base plate 13 is integrally formed with two columnar portions 22, and the two columnar portions 22 are positioned so as to sandwich a line connecting the optical axis O of the lens group 11 and the center of the cylindrical portion 18p.
- the two ends of the string-shaped shape memory alloy 23 are fixed to the upper portions of the two columnar portions 22, and the string-shaped shape memory alloy 23 is located between the optical axis O of the lens group 11 and the cylindrical portion 18p.
- the lens frame 18 is stretched in contact with the lower part of the image sensor 34 side.
- the guide shafts 15 and 16 are arranged at substantially diagonal positions on the inner side of the substantially quadrangular base plate 13 with the optical force O interposed between the both ends of the string-like shape memory alloy 23, as seen from the front force.
- FIG. 6 is a schematic diagram showing the relationship between each portion where the string-shaped shape memory alloy 23 is stretched.
- both ends of the string-shaped shape memory alloy 23 are fixed to the upper portions of the two columnar portions 22 formed integrally with the base plate 13.
- the shape memory alloy 23 is stretched so as to come into contact with the lower part of the lens frame 18 at a substantially central part after the angle is changed at a part of the columnar part 22 in a symmetrical manner.
- both end portions of the shape memory alloy 23 are sandwiched and cut by the plate member 23k, and the plate member 23k is fixed to the upper portion of the columnar portion 22.
- the flexible printed circuit board 32 shown in FIG. When a predetermined current is supplied from f through the plate member 23k to the shape memory alloy 23, the shape memory alloy 23, which is a resistance antibody, generates heat and increases in temperature, and changes in a direction that shortens its overall length, that is, Shrink. Thereby, the lens frame 18 is moved in the direction of the optical axis O along the guide shafts 15 and 16 against the compression coil panel 19 which is an urging member. In other words, the lens group 11 held by the lens frame 18 and the lens frame 17 moves in the direction of the subject along the optical axis O and can be focused at a closer distance.
- the current value supplied to the shape memory alloy 23 may be a single value or may be configured to select and drive the position of the lens group 11 in the optical axis O direction as a plurality of values.
- the above is the structure of the lens barrel according to the embodiment inside the imaging apparatus 100.
- a pair of guide shafts are formed substantially parallel to the optical axis of the lens group, and the cylindrical portion through which one of the guide shafts passes is mirrored. It is formed integrally with the frame, and both ends of the string-shaped shape memory alloy are fixed at a position where a line connecting the optical axis of the lens group and the center of the cylindrical portion is sandwiched.
- the shape memory alloy is brought into contact with the lens frame between the optical axis of the lens group and the center of the cylindrical portion, so that the movement of the lens frame in the optical axis direction can be operated more smoothly. Will be able to.
- the force using the lens frame divided into the first lens frame and the second lens frame is divided into the first lens frame and the second lens frame. Needless to say, it may be configured as a single unit.
- FIG. 7 is a schematic view showing an example of the adjustment order of each part after the string-like shape memory alloy 23 is assembled and the state of each related part at that time.
- the figure shows the relationship between the screw 21 as a contact member and the protrusion 18t formed on the second lens frame 18, and the second shape memory alloy 23.
- FIG. 5 is a diagram showing the relationship with the lens frame 18 in an extracted manner. The following adjustment is performed by removing the lid member 12 from the imaging device 100 shown in FIG. 1 and attaching the imaging device 100 to a jig with the inside of the imaging device 100 exposed as shown in FIG. is there.
- the screw 21 is screwed in until the screw 21 and the protrusion 18t are separated from each other.
- the second lens frame 18 is moved toward the image sensor by the urging member 19, the shape memory alloy 23 and the lens frame 18 come into contact with each other, and the urging force of the urging member 19 and the shape memory alloy 23 are balanced. Stop at.
- the jig is provided with a detection device for detecting the position of the second lens frame 18.
- This detection device is preferably a non-contact type, for example, a laser beam is applied to the subject side surface of the second lens frame 18 and the reflected light is received, and the detection device and the object to be measured (in this case) It is possible to apply a method that measures the distance to the subject side of the lens frame 18 by the principle of triangulation.
- the stop position of the second lens frame 18 is where the output of the detector no longer changes.
- the first lens frame 17 is rotated with respect to the second lens frame 18, and the screw portions 17 ⁇ and 18 ⁇
- the first lens frame 17, i.e., the lens group 11 is moved in the direction of the optical axis O, the focus is adjusted with respect to the imaging surface of the imaging element (not shown), and then the first lens frame 17 is moved to the second lens frame 11. Fix to the lens frame 18 with adhesive.
- This focus adjustment is preferably performed with respect to, for example, infinity or hyperfocal distance. This focus adjustment may be performed using a collimator, or the focus position may be obtained by evaluating the image sensor output each time the lens group is moved.
- the length error of the incorporated shape memory alloy 23 can be absorbed, and the tension applied to the shape memory alloy 23 can be made substantially uniform, and the shape memory alloy 23 is energized.
- a method for manufacturing a small and thin imaging device that can obtain a stable contraction amount and can move the lens group 11 to a desired position with a uniform driving method and can focus on a predetermined subject distance. Can be obtained.
- FIG. 8 is a schematic diagram showing another example of the adjustment order of each part after the string-like shape memory alloy 23 is assembled and the state of each related part at that time.
- the drawing also shows the relationship between the screw 21 as a contact member and the protrusion 18 t formed on the second lens frame 18 and the relationship between the shape memory alloy 23 and the second lens frame 18.
- the shape memory alloy 23 contracts and the second lens frame 18 is shown by a broken line against the biasing member 19 as shown in FIG. It can be moved toward the subject. Note that this energization uses a current value comparable to the maximum current value during use.
- the jig is provided with a detection device for detecting the position of the lens frame 18.
- This detection device is preferably a non-contact type, for example, a laser beam is applied to the subject side surface of the lens frame 18 and the reflected light is received to detect the detection device and the object to be measured (in this case, the lens frame). It is possible to apply a method that measures the distance to the surface of the 18 subjects) using the principle of triangulation.
- the stop position of the lens frame 18 is where the output of the detection device ceases to change.
- the screw 21 is extended, and the protrusion 18t is moved by a predetermined amount from the position where the head of the screw 21 and the protrusion 18t abut (the position indicated by the broken line). Biasing in the direction Moves back against the member 19.
- the return amount can be executed without individual difference by stopping the feeding of the screw 21.
- the shape memory alloy 23 can be brought into contact with the second lens frame 18 with a desired tension as shown in the figure.
- this return amount a value determined in advance by experiment is used.
- the first lens frame 17 is rotated with respect to the second lens frame 18, and the first lens frame 17, that is, the lens group 11 is moved in the direction of the optical axis ⁇ ⁇ ⁇ by the screw portions 17 ⁇ and 18 ⁇ .
- the first lens frame 17 is fixed to the second lens frame 18 by bonding or the like after moving and adjusting the focus on the imaging surface of the imaging element (not shown).
- This focus adjustment is preferably performed with respect to, for example, infinity or hyperfocal distance.
- This focus adjustment may be performed using a collimator, or the focus position may be obtained by evaluating the image sensor output each time the lens group is moved.
- the above is another example of the adjustment order of each unit of the imaging apparatus 100.
- This also absorbs the error in the length of the incorporated shape memory alloy 23 and allows the tension applied to the shape memory alloy 23 to be in a substantially uniform state.
- a stable amount of contraction can be obtained when electrified, and it becomes possible to move the lens group 11 to a desired position by a uniform driving method, and a compact and thin imaging device that can focus on a predetermined subject distance.
- a manufacturing method can be obtained. As described above, by using the manufacturing method described in FIG. 7 or FIG. 8 described above, energization to the shape memory alloy incorporated in the imaging device without providing the detection means in the imaging device.
- the lens group can be moved to a desired position by a uniform driving method that does not require individual correspondence, and the lens barrel of a small and thin imaging device suitable for incorporation in a portable terminal and the lens barrel are provided. It is possible to obtain an imaging apparatus provided.
- the present invention includes the following configurations and methods.
- the lens barrel having the above structure has a pair of guide shafts formed substantially parallel to the optical axis of the lens group, and a cylindrical portion through which one of the guide shafts penetrates the lens frame.
- the string-like shape memory alloy is in contact with a part of the lens frame at a substantially central portion thereof, and a line connecting the optical axis of the lens group and the center of the cylindrical portion at both ends thereof.
- a lens barrel characterized by being fixed at a pinched position.
- the outer shape of the lens barrel is substantially a quadrangle when viewed from the optical axis direction, and the guide shaft is disposed at a substantially diagonal position across the optical axis. 1) or 2) .
- An imaging apparatus comprising the lens barrel according to any one of 1) to 3).
- a shape memory alloy and a ground plate for fixing the shape memory alloy, and a contact member that contacts a part of the second lens frame is disposed on the ground plate, and the contact of the contact member
- the shape memory alloy is in contact with a part of the second lens frame at a substantially central portion thereof. Further, both ends thereof are fixed to the base plate, and the abutting member moves the second lens frame by a predetermined amount from a position where the second lens frame stops in balance with the urging force of the urging member.
- the lens barrel of 5) or 6 which is adjusted to the position returned against the biasing force of the biasing member.
- An imaging device including the lens barrel of any one of 5) to 7).
- the front area is minimized with the smallest volume.
- a small and thin lens barrel can be obtained.
- any one of the configurations 5) to 7) described above when the lens group is moved using the shape memory alloy, no detection means is required, and the length of the incorporated shape memory alloy is individually determined. Even if there is a difference, it is possible to obtain a small and thin lens barrel capable of focusing on a predetermined subject distance by a uniform driving method.
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Abstract
Description
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2006545050A JP4761159B2 (ja) | 2004-11-22 | 2005-11-15 | 撮像装置の調整方法 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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JP2004337241 | 2004-11-22 | ||
JP2004-337241 | 2004-11-22 | ||
JP2004-340261 | 2004-11-25 | ||
JP2004340261 | 2004-11-25 |
Publications (1)
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WO2006054535A1 true WO2006054535A1 (ja) | 2006-05-26 |
Family
ID=36407078
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2005/020911 WO2006054535A1 (ja) | 2004-11-22 | 2005-11-15 | レンズ鏡胴及び該レンズ鏡胴を備えた撮像装置並びに該撮像装置の製造方法 |
Country Status (3)
Country | Link |
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US (1) | US7295389B2 (ja) |
JP (1) | JP4761159B2 (ja) |
WO (1) | WO2006054535A1 (ja) |
Cited By (15)
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JP2008009381A (ja) * | 2006-05-30 | 2008-01-17 | Konica Minolta Opto Inc | 駆動装置、駆動機構及び撮像装置 |
JP2008122643A (ja) * | 2006-11-13 | 2008-05-29 | Arima Device Kk | レンズ駆動装置及びレンズ駆動装置のホルダ支持部材固定方法 |
JP2009103861A (ja) * | 2007-10-23 | 2009-05-14 | Seiko Instruments Inc | 駆動モジュール |
US7602439B2 (en) | 2005-02-15 | 2009-10-13 | Sony Corporation | Lens unit and imaging apparatus |
JP2010518438A (ja) * | 2007-02-12 | 2010-05-27 | ケンブリッジ メカトロニクス リミテッド | 形状記憶合金駆動装置 |
US8175449B2 (en) | 2006-05-30 | 2012-05-08 | Konica Minolta Opto, Inc. | Driving device, driving mechanism, and image sensing apparatus |
US8350959B2 (en) | 2006-03-30 | 2013-01-08 | 1 . . . Limited | Camera lens actuation apparatus |
US8395855B2 (en) | 2008-11-20 | 2013-03-12 | Cambridge Mechatronics Limited | Shape memory alloy actuation apparatus |
US8441749B2 (en) | 2009-02-09 | 2013-05-14 | Cambridge Mechatronics Limited | Shape memory alloy actuation apparatus |
US8588598B2 (en) | 2008-07-30 | 2013-11-19 | Cambridge Mechatronics Limited | Shape memory alloy actuation apparatus |
US8593568B2 (en) | 2007-10-30 | 2013-11-26 | Cambridge Mechatronics Limited | Shape memory alloy actuation apparatus |
JP2014088811A (ja) * | 2012-10-30 | 2014-05-15 | Minebea Co Ltd | アクチュエータ |
US8848064B2 (en) | 2008-09-12 | 2014-09-30 | Cambridge Mechatronics Limited | Optical image stabilization comprising shape memory alloy actuators |
US8866918B2 (en) | 2010-09-22 | 2014-10-21 | Cambridge Mechatronics Limited | Optical image stabilisation |
US9684183B2 (en) | 2012-11-14 | 2017-06-20 | Cambridge Mechatronics Limited | Control of an SMA actuation apparatus |
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JP5042656B2 (ja) * | 2007-02-09 | 2012-10-03 | オリンパスメディカルシステムズ株式会社 | 撮像装置 |
US8073320B2 (en) * | 2007-02-12 | 2011-12-06 | Cambridge Mechatronics Limited | Shape memory alloy actuation apparatus |
GB0702676D0 (en) * | 2007-02-12 | 2007-03-21 | 1 Ltd | Method of driving a shape memory alloy actuator |
US7974025B2 (en) * | 2007-04-23 | 2011-07-05 | Cambridge Mechatronics Limited | Shape memory alloy actuation apparatus |
US7656460B2 (en) * | 2007-08-21 | 2010-02-02 | Sony Ericsson Mobile Communications Ab | Autofocus assembly that adjusts a lens in the optical axis direction by alignment of holes in a spacing ring that receive ball bearings |
EP2039931B1 (en) | 2007-09-18 | 2012-06-06 | Olympus Medical Systems Corp. | Actuator and image pickup device |
KR20100102119A (ko) * | 2008-01-30 | 2010-09-20 | 세이코 인스트루 가부시키가이샤 | 구동 모듈 및 그것을 구비하는 전자 기기 |
JP2011039485A (ja) * | 2009-07-14 | 2011-02-24 | Seiko Instruments Inc | 駆動モジュール及び電子機器 |
KR101044140B1 (ko) * | 2009-09-11 | 2011-06-24 | 삼성전기주식회사 | 렌즈 구동 모듈 |
KR101044219B1 (ko) * | 2009-10-19 | 2011-06-29 | 삼성전기주식회사 | 렌즈 구동 모듈 |
US20110217031A1 (en) * | 2010-03-03 | 2011-09-08 | Nokia Corporation | Method And Apparatus For Shape Memory Alloy Bender Actuator |
CN104954642B (zh) * | 2015-03-19 | 2018-11-16 | 南昌欧菲光电技术有限公司 | 摄像模组组装装置及方法 |
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US6078438A (en) * | 1997-04-14 | 2000-06-20 | Nikon Corporation | Vibration actuator and lens barrel |
US6434333B2 (en) * | 1997-05-01 | 2002-08-13 | Minolta Co., Ltd. | Driving mechanism using shape-memory alloy |
US6449434B1 (en) * | 2001-01-11 | 2002-09-10 | Eastman Kodak Company | Lens displacement or other control using shaped memory alloy driver |
JP3860719B2 (ja) * | 2001-03-29 | 2006-12-20 | フジノン株式会社 | レンズ駆動装置及びレンズ鏡胴 |
AU2003244145A1 (en) * | 2003-06-27 | 2005-01-13 | Nokia Corporation | Camera lens-positioning device using shape memory alloy and camera using the device |
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2005
- 2005-11-14 US US11/273,923 patent/US7295389B2/en not_active Expired - Fee Related
- 2005-11-15 WO PCT/JP2005/020911 patent/WO2006054535A1/ja active Application Filing
- 2005-11-15 JP JP2006545050A patent/JP4761159B2/ja not_active Expired - Fee Related
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US7602439B2 (en) | 2005-02-15 | 2009-10-13 | Sony Corporation | Lens unit and imaging apparatus |
US8350959B2 (en) | 2006-03-30 | 2013-01-08 | 1 . . . Limited | Camera lens actuation apparatus |
US8175449B2 (en) | 2006-05-30 | 2012-05-08 | Konica Minolta Opto, Inc. | Driving device, driving mechanism, and image sensing apparatus |
JP2008009381A (ja) * | 2006-05-30 | 2008-01-17 | Konica Minolta Opto Inc | 駆動装置、駆動機構及び撮像装置 |
JP2008122643A (ja) * | 2006-11-13 | 2008-05-29 | Arima Device Kk | レンズ駆動装置及びレンズ駆動装置のホルダ支持部材固定方法 |
JP2010518438A (ja) * | 2007-02-12 | 2010-05-27 | ケンブリッジ メカトロニクス リミテッド | 形状記憶合金駆動装置 |
US8446475B2 (en) | 2007-02-12 | 2013-05-21 | Cambridge Mechatronics Limited | Shape memory alloy actuation apparatus |
JP2009103861A (ja) * | 2007-10-23 | 2009-05-14 | Seiko Instruments Inc | 駆動モジュール |
US8593568B2 (en) | 2007-10-30 | 2013-11-26 | Cambridge Mechatronics Limited | Shape memory alloy actuation apparatus |
US8588598B2 (en) | 2008-07-30 | 2013-11-19 | Cambridge Mechatronics Limited | Shape memory alloy actuation apparatus |
US8848064B2 (en) | 2008-09-12 | 2014-09-30 | Cambridge Mechatronics Limited | Optical image stabilization comprising shape memory alloy actuators |
US8395855B2 (en) | 2008-11-20 | 2013-03-12 | Cambridge Mechatronics Limited | Shape memory alloy actuation apparatus |
US8441749B2 (en) | 2009-02-09 | 2013-05-14 | Cambridge Mechatronics Limited | Shape memory alloy actuation apparatus |
US8866918B2 (en) | 2010-09-22 | 2014-10-21 | Cambridge Mechatronics Limited | Optical image stabilisation |
JP2014088811A (ja) * | 2012-10-30 | 2014-05-15 | Minebea Co Ltd | アクチュエータ |
US9684183B2 (en) | 2012-11-14 | 2017-06-20 | Cambridge Mechatronics Limited | Control of an SMA actuation apparatus |
Also Published As
Publication number | Publication date |
---|---|
US7295389B2 (en) | 2007-11-13 |
US20060109570A1 (en) | 2006-05-25 |
JPWO2006054535A1 (ja) | 2008-05-29 |
JP4761159B2 (ja) | 2011-08-31 |
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