JP2013152406A - Optical camera shake correction mechanism, portable terminal, and camera shake correction method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an optical camera shake correction mechanism whose versatility can be improved by reducing power consumption and heat generation, a portable terminal, and a camera shake correction method.SOLUTION: An optical camera shake correction mechanism includes: a first holder 18 which holds a lens barrel 17 at a suspended state; a second holder 19 on the inside of which the first holder 18 is arranged; a third holder 20 on the inside of which the second holder 19 is arranged; a first guide groove 18c which is formed in the first holder 18; a first bearing mechanism 21 which is provided in the second holder 19, elastically pushes the first guide groove 18c, and is guided to the first guide groove 18c; a second guide groove 19d which is formed in the second holder 19; and a second bearing mechanism 22 which is provided in the third holder 20, elastically pushes the second guide groove 19d, and is guided to the second guide groove 19d.

Description

  The present invention relates to an optical camera shake correction mechanism, a portable terminal device, and a camera shake correction method.

  In mobile terminal devices such as mobile phone terminals, so-called mobile cameras are being standardized. As described above, in the mobile camera mounted on the mobile terminal device, in addition to increasing the number of pixels, increasing the sensitivity, and increasing the functionality, there is a growing demand for mounting an optical image stabilization mechanism (OIS: Optical Image Stabilizer). Also, a compact optical image stabilization mechanism that can be mounted for portable terminal devices has been developed.

  As described above, when an optical image stabilization mechanism is mounted on a portable terminal device, there are restrictions on price and size, and power consumption to secure driving power for main communication functions, which is a problematic technique. . In addition, about the said power consumption, restrictions may arise from a viewpoint of heat_generation | fever.

  A voice coil motor (VCM: Voice Coil Motor) may be used as a drive source of an actuator of the optical image stabilization mechanism in consideration of price and size (see, for example, Patent Documents 1 and 2).

  A camera having an optical image stabilization mechanism needs to add two voice coil motors to a normal autofocus camera. In the structure of a general voice coil motor, it is necessary to constantly pass a current in order to fix the position of the lens barrel. If the maximum current of the voice coil motor is 100 mA, the current increases by 200 mA with two. . This value of 200 mA is a value close to the current consumption of a general camera (in a state where autofocus is not performed). That is, a camera equipped with an optical image stabilization mechanism consumes twice as much power as a normal autofocus camera.

  When the current consumption increases, the amount of heat generation also increases. However, in the case of portable terminal devices that are becoming smaller in size, it is difficult to apply structural heat generation countermeasures, etc. Has been difficult.

  FIG. 5 is an exploded perspective view of a barrel shift type optical image stabilization mechanism using a voice coil motor. In FIG. 4, reference numeral “1” denotes a lens barrel holding the lens 1a. A coil 1 b is wound around the outer periphery of the lens barrel 1, and springs 1 c are provided above and below the lens barrel 1. These springs 1 c are engaged with the first holder 2, and the lens barrel 1 is held in a state of being suspended inside the first holder 2 via these springs 1 c.

  The first holder 2 is provided with a magnet 2a. These magnet 2a and coil 1b constitute a voice coil motor. A spring 2 b is provided at each corner of the first holder 2. These springs 2 b are engaged with the second holder 3, and the first holder 2 holding the lens barrel 1 is held in a state of being suspended inside the second holder 3 via these springs 2 b.

The second holder 3 is provided with a coil 3a. In addition, springs 3 b are provided at each corner of the second holder 3. These springs 3 b are engaged with the third holder 4, and the second holder 3 is held in a state of being suspended inside the third holder 4 via the spring 3 b. The third holder 4 is provided with a coil 4a.
The second holder 3 allows the displacement of the first holder 2 with respect to the left-right direction, and the third holder 4 allows the displacement of the second holder 3 with respect to the front-rear direction perpendicular to the left-right direction.

  In such a configuration, an autofocus in which the lens barrel 1 moves in the vertical direction is realized by passing a current through the coil 1b. Further, by setting the spring pressure balance so that the spring pressure of the lower spring 1c of the lens barrel 1 is larger than the spring pressure of the upper spring 1c, the lens barrel 1 can be used when no current flows through the coil 1b. Are arranged on the lower side (infinite edge side as autofocus) by the pulling force of the spring 1c. Further, when an electric current is passed through the coil 1b, the lens barrel 1 moves upward (toward the close position as autofocus) against the elastic force of the lower spring 1c.

  As described above, the first holder 2 surrounds the lens barrel 1 and is displaced in the left-right direction in the second holder 3. When a current is passed through the coil 3a of the second holder 3, the first holder 2 is displaced in the left-right direction integrally with the lens barrel 1 by the force of the voice coil motor. The second holder 3 surrounds the first holder 2 and is displaced in the front-rear direction in the third holder 4. When a current is passed through the coil 4 a of the third holder 4, the first holder 2 is displaced in the front-rear direction integrally with the second holder 3 by the force of the voice coil motor.

  In the barrel shift type optical image stabilization mechanism using the voice coil motor described above, the first holder 2 is held at a substantially central position of the second holder 3 by the spring 2b when no current flows through the coils 2a and 3a. The second holder 3 is held at a substantially central position of the third holder 4 by the spring 3b. And if an electric current is sent through each coil 2a, 3a from this state, the 1st holder 2 and the 2nd holder 3 will be displaced to the left-right and front-back direction according to an electric current. At this time, since the lens barrel 1 moves together with the first holder 2 and the second holder 3, the optical axis of the lens 1a is shifted, thereby realizing a biaxial optical camera shake correction mechanism in the front-rear and left-right directions. The

JP 2011-065140 A JP 2011-158551 A

  By the way, in the optical camera shake correction mechanism described in Patent Documents 1 and 2 described above, the magnitude of the current flowing through the coils 2a and 3a is changed in accordance with the amount by which the lens barrel 1 is shifted. When the lens barrel 1 is disposed on the closest position side, the force against the elastic force of the spring 1c is maximized. Therefore, in order to hold the lens barrel 1 at the closest position side, it is necessary to keep the maximum current flowing. For example, when the amount of camera shake is large or when photographing at a position where the optical axis shift of the lens 1a from the reference position (center position) is large, the lens barrel 1 is shifted and a large current is used to hold the lens barrel 1 at that position. For example, there is a problem that a current of several tens to several hundreds of mA needs to continuously flow.

  An object of the present invention is to provide an optical camera shake correction mechanism, a mobile terminal device, and a camera shake correction method that can solve the above-described problems.

  In order to solve the above problems, an optical image stabilization mechanism according to the present invention can displace a first holder that supports a lens barrel having a lens, and the first holder in one direction perpendicular to the lens optical axis of the lens. A second holder for supporting the second holder, and a third holder for supporting the second holder so as to be displaceable in the other direction perpendicular to the displacement direction of the lens optical axis and the first holder. Any one of the second holders is provided with at least a pair of parallel first guide grooves arranged so as to sandwich the lens barrel from the outside and extending in the one direction, and the first holder and the second holder Either one of the holders is provided with a first slide mechanism having a roller that elastically pushes the pair of parallel first guide grooves and is rotatably guided by the first guide grooves. Niho At least one pair of parallel second guide grooves that are arranged so as to sandwich the first holder from the outside and extend in the other direction are provided on either one of the second holder and the third holder, On the other side of the third holder, a second slide mechanism having a roller that elastically pushes the pair of parallel second guide grooves and is rotatably guided by the second guide grooves is provided. Yes.

  The optical camera shake correction mechanism and the portable terminal device of the present invention can improve power and heat generation and improve versatility.

1 shows a mobile phone terminal as a mobile terminal device equipped with an optical image stabilization mechanism according to an embodiment of the present invention, in which (A) is a front view of the mobile phone terminal in a folded state, and (B) is a mobile phone in an unfolded state. It is a front view of a terminal. It is a disassembled perspective view of the principal part of the optical camera-shake correction mechanism which concerns on one Embodiment of this invention. 1A and 1B show a main part of an optical camera shake correction mechanism according to an embodiment of the present invention, in which FIG. 1A is a plan view of the main part, FIG. 1B is a front view of the main part, and FIG. . It is a disassembled perspective view of the minimum structure of the optical camera-shake correction mechanism of this invention. It is a disassembled perspective view of the principal part of an optical camera-shake correction mechanism.

  Next, an optical camera shake correction mechanism and a mobile terminal device according to an embodiment of the present invention will be described with reference to the drawings. The embodiments described below are preferred specific examples of the optical camera shake correction mechanism and the mobile terminal device of the present invention. Although various technically preferable limitations may be given, the technical scope of the present invention is not limited to these embodiments unless specifically described to limit the present invention. In addition, the constituent elements in the embodiments shown below can be appropriately replaced with existing constituent elements and the like, and various variations including combinations with other existing constituent elements are possible. Therefore, the description of the embodiment described below does not limit the contents of the invention described in the claims. In addition, the directions such as up, down, left, and right in the following description are the same as those on the paper surface in FIG. 2 unless otherwise specified. 2 and 4, the arrow FR indicates the front, the arrow LH indicates the left, and the arrow UP indicates the upward.

  FIG. 1 shows a mobile phone terminal as a mobile terminal device equipped with an optical camera shake correction mechanism according to an embodiment of the present invention. 1A is a front view of the cellular phone terminal in a folded state, FIG. 1B is a front view of the cellular phone terminal in an unfolded state, and FIG. 2 is a schematic diagram of an optical image stabilization mechanism according to an embodiment of the present invention. It is a disassembled perspective view of a part. 3 shows a main part of an optical image stabilization mechanism according to an embodiment of the present invention, FIG. 3A is a plan view of the main part, FIG. 3B is a front view of the main part, FIG. (C) is a perspective view of the principal part.

  In FIG. 1, a mobile phone terminal 10 as a mobile terminal device includes an operation device body 12 having a plurality of operation buttons 11, a screen device body 14 having a display screen 13, and a screen device so that a lens 15 is exposed. And a mobile camera body 16 provided in the body 14. The installation positions and orientations of the mobile camera body 16 and the lens 15 are not limited to those shown in the illustrated example. The mobile camera body 16 is photographed by operating the operation buttons 11, and the photographed data is stored in an internal memory (not shown) of the operation device body 12.

  As shown in FIG. 2, the mobile camera body 16 includes a lens barrel 17, a first holder 18, a second holder 19, and a third holder 20.

  The lens barrel 17 includes a substantially cylindrical barrel and a lens fixed to the barrel so that the axis of the barrel and the optical axis overlap. A coil 17 a that can be energized from a current source (not shown) is wound around the outer periphery of the lens barrel 17. Further, the lens barrel 17 is provided with springs 17b on the upper and lower sides, respectively. These springs 17b are stretched between the lens barrel 17 and the first holder 18, and the lens barrel 17 is held in a state of being hung inside the first holder 18 via these springs 17b. .

  The first holder 18 covers the outer peripheral surface of the lens barrel 17 with a predetermined gap. The first holder 18 has two pairs of parallel outer wall surfaces 18b. In the first holder 18, magnets 18a are respectively attached to two outer wall surfaces 18b adjacent in the circumferential direction. An autofocus mechanism using a voice coil motor is configured to include at least the magnet 18a and the coil 17a of the lens barrel 17. The first holder 18 is formed with a pair of first guide grooves 18c parallel to the upper and lower sides on two outer wall surfaces 18b that are not adjacent to each other. In this embodiment, the two outer wall surfaces 18b on which the first guide grooves 18c are formed are surfaces facing the front and back direction of the paper surface (hereinafter simply referred to as the front-rear direction).

The 2nd holder 19 is formed in the substantially square cylinder shape provided with two parallel pairs of side walls 19c which each face the outer wall surface 18b of the 1st holder 18 with a predetermined clearance. A coil 19a that can be energized by a current source (not shown) is attached to the second holder 19 on a side wall 19c that faces the outer wall surface 18b. The second holder 19 includes a bearing mechanism 21 on two inner wall surfaces 19b facing the outer wall surface 18b in which the first guide groove 18c is formed. Each of these bearing mechanisms 21 is disposed so as to face the substantially central position in the length direction of the first guide groove 18c. The bearing mechanism 21 of the second holder 19 is engaged with the first guide groove 18c. As a result, the first holder 18 is held inside the second holder 19 in a state displaceable in the left-right direction along the first guide groove 18c.
Further, the second holder 19 is formed with a pair of second guide grooves 19d parallel to the upper and lower sides on two side walls 19c where the bearing mechanism 21 is not provided.

  The third holder 20 is formed in a substantially rectangular tube shape that includes two parallel pairs of side walls 20c that face the side walls 19c of the second holder 19 with a predetermined gap. In the third holder 20, a coil 20a that can be energized by a current source (not shown) is attached to a side wall 20c that faces the side wall 19c in which the second guide groove 19d is formed. The third holder 20 is provided with bearing mechanisms 22 on two inner wall surfaces 20b facing the outer peripheral surface of the side wall 19c in which the second guide groove 19d is formed. These bearing mechanisms 22 are respectively arranged so as to face the substantially central position in the length direction of the first guide groove 18c. The bearing mechanism 22 of the second holder 19 is engaged with the second guide groove 19d. Thereby, the 2nd holder 19 is hold | maintained inside the 3rd holder 20 in the state which can be displaced to the front-back direction along the 2nd guide groove 19d.

  As shown in FIGS. 3A to 3C, the bearing mechanism 21 includes a storage recess 23 that opens in the inner wall surface 19b, a rotary shaft 24 that engages with a shaft guide groove 23a formed in the storage recess 23, A bearing roller 25 rotatably held by the rotating shaft 24 and a coil spring 26 that elastically pushes the bearing roller 25 in a direction in which the bearing roller 25 protrudes from the housing recess 23 are provided. Thereby, the bearing roller 25 is always pushed in the direction in which the bearing roller 25 protrudes from the storage portion 23. In addition, although the example which pushes the bearing roller 25 with the elastic force of the coil spring 26 was demonstrated, it is not restricted to the coil spring 26, For example, you may use elastic materials, such as a leaf | plate spring and rubber | gum.

  The bearing roller 25 is guided by the first guide groove 18c described above, and can travel in the extending direction of the first guide groove 18c. Since the bearing mechanisms 21 and 22 have basically the same configuration, detailed description of the bearing mechanism 22 is omitted.

  In the above configuration, when a current is passed through the coil 19a, a magnetic field is generated, and a force that is displaced in the length direction of the first guide groove 18c is applied to the first holder 18. This force exceeds the holding force of the bearing roller 25 by the coil spring 26, and the bearing roller 25 rotates. As the bearing roller 25 rotates, the first holder 18 is guided in the first guide groove 18c and smoothly displaced in the left-right direction.

  On the other hand, when a current is passed through the coil 20 a, a magnetic field is generated, and a force that is displaced in the length direction of the second guide groove 19 d is applied to the first holder 18. Similar to the case where the first holder 18 is displaced in the length direction of the first guide 18c, this force exceeds the holding force of the bearing roller 25 by the coil spring 26, and the bearing roller 25 rotates. As the bearing roller 25 rotates, the first holder 18 and the second holder 19 are smoothly displaced in the front-rear direction along the second guide groove 19d.

  On the other hand, in a state where no force is applied by the voice coil motor, the bearing roller 25 presses the first holder 18 and the second holder 19 from both outer sides by the guide grooves 18c and 19d by the elastic force of the coil spring 26. wear. Thus, the 1st holder 18 and the 2nd holder 19 are hold | maintained in the position by pressing down the 1st holder 18 and the 2nd holder 19 from both outer sides.

  That is, when the current to the coils 19a, 20a is stopped at the position where the first holder 18 and the second holder 19 are displaced, the holders 18, 19 are pressed and held by the elastic force of the coil spring 26 at that position. For this reason, it is not necessary to continue flowing an electric current in order to hold the first holder 18 and the second holder 19 in a displaced state.

  Therefore, according to the optical camera shake correction mechanism of the above-described embodiment, only when the first holder 18 and the second holder 19 are displaced, it is only necessary to pass a current through the coils 19a and 20a, which is an average of the optical camera shake correction mechanism. It is possible to reduce power consumption.

  Further, when the displacement width of the first holder 18 and the second holder 19 is large, the coils 19a and 20a are pulse-controlled by adopting the first guide groove 18c, the second guide groove 19d, and the bearing mechanisms 21 and 22. The first holder 18 and the second holder 19 can be gradually displaced. As a result, it is possible to reduce the maximum value of the current flowing through the coils 19a and 20a.

  In such a barrel shift type optical image stabilization mechanism using a voice coil motor, the lens barrel 17 is shifted in the left-right direction by the first holder 18 and the second holder 19 by driving the voice coil motor. Further, the lens barrel 17 is shifted in the front-rear direction by the driving second holder 19 and the third holder 20 by driving the voice coil motor. The first holder 18 is held by the second holder 19, and the second holder 19 is held by the bearing mechanisms 21 and 22 at a substantially central position of the third holder 20. A current is passed through the coils 19a and 20a, the lens barrel 17 is shifted in the left and right and front and rear directions, and the optical axis of the lens 15 is shifted to constitute a biaxial optical camera shake correction mechanism.

  Further, in the optical camera shake correction mechanism and the mobile phone terminal 10 in the above-described embodiment, it is not necessary to keep the current flowing in order to fix the positions of the holders 18 and 19. As a result, the maximum current value (power consumption) during driving as the optical camera shake correction mechanism can be reduced, which can contribute to downsizing and measures against heat generation.

  In the above-described embodiment, the mobile terminal device according to the present invention has been described as being applied to the foldable mobile phone terminal 10, but a slide-type or single-screen (so-called smartphone or the like) mobile phone terminal, or In addition, the present invention can be applied to a mobile camera mounted on a portable terminal device other than a dedicated photographing device such as a digital still camera or a digital video camera, such as a personal digital assistant (PDA).

  In the above embodiment, the voice coil motor mechanism in the optical camera shake correction mechanism has been described. However, the present invention can also be applied to auto focus. Further, the arrangement of the first guide groove 18c and the first bearing mechanism 21 may be reversed. Similarly, the arrangement of the second guide groove 19d and the second bearing mechanism 22 may be reversed.

Further, the first guide groove 18c and the second guide groove 19d only need to be formed in the horizontal direction orthogonal to each other. good.
Furthermore, although the case where the bearing roller 25 having a bearing is used for the guide has been described in the above-described embodiment, it may be replaced with a roller having a configuration of a sliding bearing. The guided portion is not limited to the cylindrical roller, and may be a ball-shaped rolling member.

  Furthermore, in the said embodiment, the case where one bearing mechanism 21 is provided with respect to one 1st guide groove 18c, and one bearing mechanism 22 is provided with respect to one 2nd guide groove 19d is demonstrated. However, a plurality of bearing mechanisms 21 may be provided side by side with respect to one first guide groove 18c, or a plurality of bearing mechanisms 22 may be provided side by side with respect to one second guide groove 19d. And when providing the several bearing mechanisms 21 and 22, it is good also as a structure of what is called a cross-roller guide which changed the direction of the bearing roller 25 alternately, for example.

  In the above-described embodiment, an example of the best mode for carrying out the present invention has been described. However, the optical camera shake correction mechanism of the present invention has the minimum configuration shown in the exploded perspective view of FIG. The effects described above can be achieved.

  The optical camera shake correction mechanism of the present invention includes a first holder 18 that supports a lens barrel 17 having a lens 15 and a second holder that supports the first holder 18 so as to be displaceable in one direction orthogonal to the lens optical axis O. 19, and a third holder 20 that supports the second holder 19 so as to be displaceable in the other direction orthogonal to the displacement direction of the lens optical axis O and the first holder 18.

  Furthermore, the optical camera shake correction mechanism of the present invention is arranged in either one of the first holder 18 and the second holder 19 so as to sandwich the lens barrel 17 from the outside and is in one direction orthogonal to the lens optical axis O ( In FIG. 4, at least a pair of parallel first guide grooves 18c extending in the left-right direction) is provided, and a pair of parallel first guide grooves 18c is provided on the other of the first holder 18 and the second holder 19. A first slide mechanism 21 having a roller 25 that is elastically pushed and rotatably guided in the first guide groove 18c is provided.

  Further, at least one pair of parallel second electrodes 19 is disposed in either one of the second holder 19 and the third holder 20 so as to sandwich the first holder 18 from the outside and extends in the other direction (the front-rear direction in FIG. 4). Two guide grooves 19d are provided. Furthermore, either one of the second holder 19 and the third holder 20 has a roller 25 that elastically pushes the pair of parallel second guide grooves 19d and is rotatably guided by the second guide grooves 19d. The second slide mechanism 22 is provided.

  A part or all of the above-described embodiment can be described as in the following supplementary notes, but is not limited thereto.

  (Appendix 1) A first holder that supports a lens barrel having a lens, a second holder that supports the first holder so as to be displaceable in one direction orthogonal to the lens optical axis of the lens, and the second holder A third holder that supports the lens optical axis and the first holder so as to be displaceable in another direction orthogonal to the displacement direction of the first holder, and either one of the first holder and the second holder includes the At least a pair of parallel first guide grooves that are arranged so as to sandwich the lens barrel from the outside and extend in the one direction are provided, and the other of the first holder and the second holder has the pair of parallel A first slide mechanism having a guided portion that is elastically pressed to the first guide groove and is rotatably guided by the first guide groove, and is either one of the second holder and the third holder On the one hand, the above At least one pair of parallel second guide grooves arranged to sandwich one holder from the outside and extending in the other direction are provided, and the other of the second holder and the third holder has the pair of parallel An optical camera-shake correction mechanism comprising a second slide mechanism having a guided portion that is elastically pushed into the second guide groove and rotatably guided by the second guide groove.

  (Appendix 2) The second holder and the third holder are each provided with a coil, and the first holder or the second holder is energized along the first guide groove or the second guide groove by energizing the coil. The optical camera shake correction mechanism according to appendix 1, wherein the two holders are displaced.

  (Appendix 3) A barrel driving coil is wound around the lens barrel, a magnet is provided on the first holder, and an autofocus mechanism of a voice coil motor includes the barrel driving coil and the magnet. The optical camera shake correction mechanism according to appendix 1 or appendix 2, wherein the optical shake compensation mechanism is configured.

  (Additional remark 4) Said 1st slide mechanism and said 2nd slide mechanism are said 1st guide groove, said guided part engaged with said 1st guide groove or said 2nd guide groove, and a part of this guided part is said 1st guide A housing recess that is rotatably held in a state in which a part is projected so as to engage with the groove or the second guide groove, and the guided portion is elastically pushed in a direction projecting from a part of the housing recess. An optical camera shake correction mechanism according to any one of Supplementary Note 1 to Supplementary Note 3, wherein the optical camera shake correction mechanism includes an elastic member.

  (Supplementary note 5) A portable terminal device comprising the optical camera shake correction mechanism according to any one of supplementary notes 1 to 4.

  (Appendix 6) A first holder that supports a lens barrel having a lens, a second holder that supports the first holder so as to be displaceable in one direction perpendicular to the lens optical axis of the lens, and the second holder A third holder that supports the lens optical axis and a displacement direction in a direction perpendicular to the displacement direction of the first holder, and the lens is disposed on one of the first holder and the second holder. At least a pair of parallel first guide grooves arranged so as to sandwich the barrel from the outside and extending in the one direction are provided, and the pair of parallel first guide grooves is provided on either one of the first holder and the second holder. A first slide mechanism having a guided portion that is elastically pushed into one guide groove and is rotatably guided by the first guide groove is provided, and either the second holder or the third holder is provided. The first ho At least a pair of parallel second guide grooves that are disposed so as to sandwich the slider from the outside and extend in the other direction, and the pair of parallel second guide grooves is provided on either one of the second holder and the third holder. A second slide mechanism having a guided portion that is elastically pushed into the guide groove and rotatably guided by the second guide groove is provided, and a coil is provided in each of the second holder and the third holder. A hand shake correction method for a portable terminal device having an optical hand shake correction mechanism, wherein the first holder is moved along the first guide groove by energizing a coil provided in the second holder. A camera shake correction method comprising: displacing and displacing the second holder together with the first holder along the second guide groove by energizing a coil provided in the third holder.

10 Mobile phone terminals (mobile terminal devices)
15 lens 17 lens barrel 18 first holder 18c first guide groove 19 second holder 19d second guide groove 20 third holder 21 first bearing mechanism (first slide mechanism)
22 Second bearing mechanism (second slide mechanism)
23 Storage recess 25 Bearing roller (guided part)
26 Coil spring (elastic member)

Claims (6)

A first holder for supporting a lens barrel having a lens;
A second holder for supporting the first holder so as to be displaceable in one direction orthogonal to the lens optical axis of the lens;
A third holder for supporting the second holder so as to be displaceable in another direction orthogonal to the lens optical axis and the displacement direction of the first holder;
Either one of the first holder and the second holder is provided with at least a pair of parallel first guide grooves arranged to sandwich the lens barrel from the outside and extending in the one direction,
Either one of the first holder and the second holder has a guided portion that elastically pushes the pair of parallel first guide grooves and is guided rotatably by the first guide grooves. A first slide mechanism is provided,
Any one of the second holder and the third holder is provided with at least a pair of parallel second guide grooves arranged to sandwich the first holder from the outside and extending in the other direction,
One of the second holder and the third holder has a guided portion that elastically pushes the pair of parallel second guide grooves and is guided rotatably by the second guide grooves. An optical image stabilization mechanism characterized in that a two-slide mechanism is provided.   The second holder and the third holder are each provided with a coil, and the first holder or the second holder is displaced along the first guide groove or the second guide groove by energizing the coil. The optical camera shake correction mechanism according to claim 1, wherein:   A barrel driving coil is wound around the lens barrel, a magnet is provided on the first holder, and an autofocus mechanism of a voice coil motor includes the barrel driving coil and the magnet. The optical camera shake correction mechanism according to claim 1, wherein the optical camera shake correction mechanism is provided. The first slide mechanism and the second slide mechanism are guided by the guided portion guided by the first guide groove or the second guide groove and by the first guide groove or the second guide groove. A storage recess that rotatably holds the guided portion in a state in which a part of the guided portion is protruded, and an elastic member that elastically pushes the guided portion in a direction protruding from a part of the storage recess. When,
The optical camera shake correction mechanism according to any one of claims 1 to 3, further comprising:   A portable terminal device comprising the optical camera shake correction mechanism according to any one of claims 1 to 4. A first holder for supporting a lens barrel having a lens;
A second holder for supporting the first holder so as to be displaceable in one direction orthogonal to the lens optical axis of the lens;
A third holder for supporting the second holder so as to be displaceable in another direction orthogonal to the lens optical axis and the displacement direction of the first holder;
Either one of the first holder and the second holder is provided with at least a pair of parallel first guide grooves arranged to sandwich the lens barrel from the outside and extending in the one direction,
The first holder and the second holder each have a guided portion that elastically pushes the pair of parallel first guide grooves and is rotatably guided by the first guide grooves. One slide mechanism is provided,
Any one of the second holder and the third holder is provided with at least a pair of parallel second guide grooves arranged to sandwich the first holder from the outside and extending in the other direction,
The second holder has a guided portion that elastically pushes the pair of parallel second guide grooves and is guided rotatably by the second guide grooves on the other of the second holder and the third holder. A sliding mechanism is provided,
A camera shake correction method for a mobile terminal device including an optical camera shake correction mechanism in which a coil is provided in each of the second holder and the third holder,
By energizing the coil provided in the second holder, the first holder is displaced along the first guide groove,
A camera shake correction method, wherein the second holder is displaced together with the first holder along the second guide groove by energizing a coil provided in the third holder.

Images