JP2010190984A - Optical device for photography - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical device for photography capable of stable correction in image stabilization while being miniaturizable. <P>SOLUTION: The optical device 1 for photography includes: a movable module 19 having a lens driving device 3 equipped with a lens, an imaging element 2 and a lens drive mechanism for driving the lens in a direction of an optical axis L1 of the lens; a support body 4 for supporting the movable module 19; and a image stabilizing mechanism for correcting the image to be stabilized by swinging the movable module 19 to incline an optical axis L2 of the movable module 19 with respect to the support body 4. The movable module 19 includes a sensor 8 for detecting the inclination of the movable module 19, and a reflecting member 7 formed with a reflecting surface 7a for bending the optical axis L1 of the lens in a predetermined direction. The sensor 8 is disposed on the back face side, opposite to the reflecting surface 7a, of the reflecting member 7. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a photographing optical apparatus having a camera shake correction function for correcting camera shake by swinging a lens driving device on which a lens and an image sensor are mounted.

  2. Description of the Related Art In recent years, a photographing optical device is mounted on a portable device such as a cellular phone. In the case of a mobile device, camera shake tends to occur during shooting. Therefore, an optical apparatus capable of correcting camera shake during shooting has been proposed (see, for example, Patent Document 1).

  The optical device described in Patent Document 1 is fixed to a movable portion on which a lens and an image sensor are mounted, a pivot shaft that is fixed to the base of the optical device and contacts the bottom surface of the movable portion, and a base. A leaf spring for swingably supporting the movable part and a swinging mechanism for swinging the movable part are provided. In this optical device, the swing mechanism is constituted by a drive coil and a drive magnet. Further, in this optical device, an X-axis gyro and a Y-axis gyro for detecting the tilt of the optical device are fixed to the base, and the X-axis gyro is a base that has an axis parallel to the X-axis. The Y-axis gyro performs the function of detecting the tilt, and the Y-axis gyro performs the function of detecting the tilt of the base around the axis parallel to the Y-axis.

  In the optical device described in Patent Document 1, when the tilt of the base is detected by the X-axis gyro or the Y-axis gyro, the swing mechanism is driven. When the swing mechanism is driven, the movable portion swings with the pivot shaft as a fulcrum with respect to the base by the driving force of the swing mechanism, thereby correcting the camera shake.

  As a lens driving device for driving a photographing lens of a photographing optical device, for example, a lens driving device having a rectangular shape when viewed from the optical axis direction of the lens is known (for example, Patent Documents). 2 and 3). The lens driving devices described in Patent Documents 2 and 3 include a first lens holder that holds an optical zoom lens, a second lens holder that holds a focus lens, and a first lens holder that drives the first lens holder in the optical axis direction. 1 drive mechanism and a second drive mechanism for driving the second lens holder in the optical axis direction. In this lens driving device, the first driving mechanism is disposed on one end side of the lens driving device in a direction substantially parallel to the long side of the lens driving device when viewed from the optical axis direction, and the second driving mechanism is configured to have the optical axis. It is arranged on the other end side of the lens driving device in a direction substantially parallel to the long side of the lens driving device when viewed from the direction.

JP 2007-310084 A JP 2007-28833 A JP 2007-121727 A

  As described above, in the optical device described in Patent Document 1, when the tilt of the base is detected, the movable portion is swung by the driving force of the swing mechanism, and the camera shake is corrected. That is, in this optical device, although the tilt of the base is detected, the movable part is swung to correct the camera shake, and the tilt detection target and the control target at the time of the camera shake correction are different. For this reason, in this optical apparatus, there is a possibility that stable camera shake correction is difficult.

  On the other hand, in recent years, in the market for mobile devices such as mobile phones, there has been an increasing demand for miniaturization of mobile devices, and as a result, there has been a further increase in the demand for miniaturization of photographing optical devices mounted on mobile devices. .

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a photographing optical apparatus that can stably correct camera shake and can be downsized.

  In order to solve the above problems, a photographing optical device of the present invention includes a movable module having a lens driving device on which a lens, an imaging element, and a lens driving mechanism that drives the lens in the direction of the optical axis of the lens, A support that supports the movable module; and a camera shake correction mechanism that corrects camera shake by swinging the movable module so that the optical axis of the movable module is tilted with respect to the support. It is provided with a sensor for detection and a reflecting member formed with a reflecting surface that bends the optical axis of the lens in a predetermined direction, and the sensor is disposed on the back side of the reflecting member that is opposite to the reflecting surface. Features.

  In the photographic optical device of the present invention, the movable module includes a sensor for detecting the inclination of the movable module, and the camera shake is corrected by swinging the movable module by a camera shake correction mechanism. That is, in the present invention, the inclination of the movable module (the inclination of the lens driving device) is detected by a sensor that constitutes a part of the movable module, and the camera shake is corrected by swinging the movable module. The control target at the time of camera shake correction is the same. Therefore, in the photographing optical device according to the present invention, stable camera shake correction can be performed.

  Moreover, in this invention, the sensor is arrange | positioned at the back side which becomes the other side of a reflective surface of a reflective member. That is, the sensor is disposed on the back side of the reflective member that is likely to become a dead space in the movable module. Therefore, in the present invention, it is possible to reduce the size of the movable module by effectively using the dead space, and as a result, it is possible to reduce the size of the photographing optical device.

  Furthermore, in the present invention, the sensor is disposed on the back side of the reflecting member, which is the opposite side of the reflecting surface that bends the optical axis of the lens. Therefore, it becomes possible to arrange the sensor on the extended line of the optical axis after being bent at the reflecting surface. Therefore, in order to reduce the size of the movable module, for example, even if the rigidity of each component constituting the movable module is reduced, the tilt of the movable module can be accurately detected by the sensor.

  In the present invention, it is preferable that the reflecting member bends the optical axis of the lens by approximately 90 °. With this configuration, the movable module can be further downsized in the direction of the optical axis after being bent, and as a result, the photographing optical device can be further downsized.

  In the present invention, the lens driving device preferably includes a case body constituting at least a part of the outer peripheral surface of the lens driving device, and the reflecting member and the sensor are preferably disposed inside the case body. That is, it is preferable that the reflecting member and the sensor are disposed inside the lens driving device. If comprised in this way, it will become possible to handle a reflective member and a sensor integrally with a lens drive device, and it will become possible to handle a reflective member and a sensor easily at the time of the assembly of an imaging optical device. In addition, when the photographing optical device is assembled, the reflecting member and the sensor can be appropriately protected by the case body.

  In the present invention, the photographic optical device includes a fulcrum part serving as a swing center of the movable module, and a leaf spring that connects the support and the movable module, and the leaf spring can be moved relative to the support. It is preferable that the movable module is held on and urged toward the fulcrum. If comprised in this way, it will become possible to bias a movable module toward a fulcrum part, without interfering with rocking | fluctuation operation | movement of a movable module, and a movable module can be rock | fluctuated to each direction by using a fulcrum part as a fulcrum. It becomes possible.

  As described above, the photographing optical apparatus according to the present invention can stably correct camera shake and can be downsized.

1 is a perspective view of a photographic optical device according to an embodiment of the present invention. It is sectional drawing of the EE cross section of FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Configuration of optical device for photographing)
FIG. 1 is a plan view of a photographic optical device 1 according to an embodiment of the present invention. FIG. 2 is a cross-sectional view taken along the line EE of FIG.

  The photographing optical device 1 according to the present embodiment is a small and thin camera mounted on a portable device such as a cellular phone, and is formed in a flat and substantially rectangular parallelepiped shape as a whole as shown in FIG. As shown in FIG. 2, the photographing optical device 1 includes a lens driving device 3 on which a lens (not shown) and the image sensor 2 are mounted, a support 4 that supports the lens driving device 3 so as to be swingable, A swing drive mechanism 5 that swings the lens drive device 3 with respect to the support 4 is provided.

  In addition to the lens and the imaging device 2, the lens driving device 3 is mounted with a lens driving mechanism (not shown) for driving the lens in the direction of the optical axis L1 of the lens (the left-right direction in FIG. 2). This lens driving mechanism is constituted by, for example, a driving coil and a driving magnet. In addition, the lens driving device 3 is equipped with a reflecting member 7 having a reflecting surface 7a for bending the optical axis L1 of the lens in a predetermined direction, and a sensor 8 for detecting the tilt of the lens driving device 3. . In this embodiment, as shown in FIG. 2, the reflecting member 7 bends the optical axis L1 of the lens by approximately 90 °. In this embodiment, the optical axis after being bent by the reflecting member 7 is the optical axis L2 of the lens driving device 3.

  Hereinafter, as shown in FIGS. 1 and 2, the three directions orthogonal to each other are defined as an X direction, a Y direction, and a Z direction, respectively. In addition, the X direction is the left-right direction, the Y direction is the front-rear direction, and the Z direction is the up-down direction, and the X1 direction side in FIGS. 1 and 2 is the “right” side, the X2 direction side is the “left” side, and the Z1 direction side. Is the “upper” side, and the Z2 direction side is the “lower” side. In this embodiment, the X direction (left and right direction) is the direction of the optical axis L1 of the lens when the lens driving device 3 is not oscillating, and the Z direction (up and down direction) is that the lens driving device 3 oscillates. This is the direction of the optical axis L2 of the lens driving device 3 when not.

  The support 4 includes a base member 10 that forms the lower surface of the photographing optical device 1, and an outer case body 11 that forms the front, rear, left, and right outer peripheral surfaces and the upper surface of the photographing optical device 1. Further, the swing drive mechanism 5 includes a drive magnet 12 and a drive coil 13 disposed to face the drive magnet 12. The swing drive mechanism 5 of this embodiment includes four drive magnets 12 and four drive coils 13.

  The lens driving device 3 is formed in a flat and substantially rectangular parallelepiped shape as a whole, and includes a case body 15 that constitutes the outer peripheral surface of the lens driving device 3. The case body 15 is made of a magnetic material. Further, the case body 15 is formed in a flat, substantially rectangular parallelepiped box shape whose left end is open. On the right end side of the upper surface of the case body 15, a circular through hole 15a through which the optical axis L2 of the lens driving device 3 passes is formed.

  The image sensor 2 is, for example, a CCD or a CMOS. The image pickup device 2 is arranged on the left end side inside the case body 15 so as to close the opening at the left end of the case body 15. The lens and the lens driving mechanism are disposed at an intermediate position in the left-right direction inside the case body 15. The case body 15 of this embodiment functions as a yoke, and the lens driving mechanism is covered with the case body 15.

  The reflection member 7 is, for example, a total reflection mirror, and is formed in a flat plate shape as shown in FIG. The reflecting member 7 is disposed on the right end side inside the case body 15. Specifically, the reflecting member 7 is disposed below the through hole 15a. Further, the reflecting member 7 is fixed inside the case body 15 with the reflecting surface 7a facing obliquely upward to the left and with the upper end of the reflecting member 7 in contact with the right side surface of the case body 15. Yes. As described above, the reflecting member 7 is raised upward by bending the optical axis L1 of the lens by approximately 90 °.

  The sensor 8 is a gyro sensor (angular velocity sensor) or an acceleration sensor. The sensor 8 is fixed to the right end side inside the case body 15. Specifically, the sensor 8 is fixed to the back side of the reflecting member 7 that is opposite to the reflecting surface 7a and does not affect the photographing of the subject. That is, the sensor 8 is arranged in a space formed at the lower right end portion inside the case body 15 by the back surface of the reflecting member 7 and the inner peripheral surface of the case body 15. More specifically, the sensor 8 is disposed on an extension line of the optical axis L <b> 2 of the lens driving device 3 on the back side of the reflecting member 7. Note that the sensor 8 may be disposed at a position off the extended line of the optical axis L2 of the lens driving device 3.

  A flexible printed circuit board (FPC) 16 is connected to the sensor 8. The FPC 16 is also connected to the image sensor 2, and is led around the lower end side of the photographic optical device 1, and is pulled out from the left side surface of the photographic optical device 1, for example.

  The front, rear, left and right side surfaces and the upper surface of the lens driving device 3 are covered with an upper cover member 17 formed in a substantially rectangular tube shape with a bottom having an open lower end. Specifically, the front, rear, left and right side surfaces and the upper surface of the lens driving device 3 are covered with the upper cover member 17 so that the outer peripheral surface of the case body 15 and the inner peripheral surface of the upper cover member 17 are in contact with each other. The upper cover member 17 is made of, for example, a magnetic material. A circular through hole 17 a is formed concentrically with the through hole 15 a of the case body 15 at the bottom of the upper cover member 17 disposed on the upper end side. A driving magnet 12 is fixed to each of the front, rear, left and right side surfaces of the upper cover member 17.

  The lower surface of the lens driving device 3 is covered with a lower cover member 18 formed in a substantially rectangular flat plate shape. The lower cover member 18 is fixed to the lower end of the upper cover member 17. In addition, a contact surface 18 a is formed in a flat shape at the center of the lower cover member 18 so as to contact an upper end portion of a protrusion 10 a described later formed on the base member 10.

  In this embodiment, the lens driving device 3, the upper cover member 17, and the lower cover member 18 are supported by the support 4 so as to be swingable. In other words, in this embodiment, the lens driving device 3, the upper cover member 17, and the lower cover member 18 constitute a movable module 19 that can swing with respect to the support 4. In this embodiment, the optical axis L2 of the lens driving device 3 is also the optical axis of the movable module 19. That is, the optical axis L <b> 2 of this embodiment is the optical axis of the lens driving device 3 and the optical axis of the movable module 19.

  The support body 4 includes the base member 10 and the outer case body 11 as described above. A stopper member 20 for restricting the swing range of the movable module 19 is fixed to the outer case body 11. A part of a leaf spring 21 that connects the support 4 and the movable module 19 is fixed to the stopper member 20.

  The base member 10 is formed in a substantially rectangular flat plate shape. A projecting portion 10 a projecting upward is formed at the approximate center of the base member 10. The upper end portion of the protruding portion 10a is formed in a curved surface shape and is in contact with the contact surface 18a of the lower cover member 18. In this embodiment, the projecting portion 10a and the contact surface 18a constitute a fulcrum portion 22 that becomes the swing center of the movable module 19 (the swing center of the lens driving device 3).

  The outer case body 11 is formed in a substantially rectangular tube shape with a bottom having a lower end opened. A base member 10 and a stopper member 20 are fixed to the inner peripheral surface on the lower end side of the outer case body 11. A circular through hole 11 a is formed concentrically with the through hole 15 a of the case body 15 and the through hole 17 a of the upper cover member 17 at the bottom of the outer case body 11 disposed on the upper end side.

  The leaf spring 21 includes a fixed side fixing portion fixed to the stopper member 20, a movable side fixing portion fixed to the lower cover member 18, and a spring portion connecting the fixed side fixing portion and the movable side fixing portion. The optical device 1 for photographing is arranged on the lower end side. The spring portion is formed so that the movable side fixed portion can be moved relative to the fixed side fixed portion in the front-rear, left-right, and up-down directions. The movable module 19 is held so that the movable module 19 can be relatively moved in the vertical direction. Further, the leaf spring 21 generates a pressure for reliably bringing the protruding portion 10a of the base member 10 and the contact surface 18a of the lower cover member 18 into contact (that is, the movable module 19 is moved downward). It is fixed to the stopper member 20 in a bent state so that an urging force for urging is generated. That is, the leaf spring 21 urges the movable module 19 toward the fulcrum portion 22.

  The drive magnet 12 is formed in a substantially rectangular plate shape. One driving magnet 12 is fixed to each of the front, rear, left and right side surfaces of the upper cover member 17, and is disposed inside the outer case body 11. The driving magnet 12 swings together with the lens driving device 3.

  The driving coil 13 is an air-core coil in which a fusion wire including an insulating film covering the conductor and a fusion film further covering the insulating film is wound in an air-core shape. The driving coil 13 is formed by winding a fusion wire in a substantially rectangular shape. One driving coil 13 is fixed to each of the front, rear, left and right side surfaces of the outer case body 11 via an insulating film.

  As shown in FIG. 2, the driving magnet 12 and the driving coil 13 are arranged to face each other with a predetermined gap. Specifically, even if the movable module 19 swings with the fulcrum portion 22 as a fulcrum, the drive magnet 12 and the drive coil 13 are set in a predetermined manner so that the drive magnet 12 and the drive coil 13 do not contact each other. Oppositely arranged with a gap.

  In the present embodiment, the drive magnet 12 and the drive coil 13 are disposed to face each other in the left-right direction or the front-rear direction, and the front-rear direction is determined by the drive magnet 12 and the drive coil 13 that face each other in the left-right direction. A driving force that causes the movable module 19 to swing (that is, swings the movable module 19 about the Y axis) is generated as the swinging axial direction. Further, the driving module 12 and the driving coil 13 opposed to each other in the front-rear direction swing the movable module 19 with the left-right direction as the axis direction of the swing (that is, swing the movable module 19 around the X axis). ) Driving force is generated.

  In the photographic optical device 1 configured as described above, when camera shake is detected by the sensor 8 (that is, when the inclination of the movable module 19 is detected to be equal to or greater than a specified value), the sensor 8 Based on the detection result, current is supplied to the drive coil 13. When a current is supplied to the driving coil 13, the movable module 19 swings around the fulcrum portion 22 so as to tilt the optical axis L <b> 2 of the lens driving device 3 (the optical axis L <b> 2 of the movable module 19). Camera shake is corrected. In this embodiment, the swing module 15, the leaf spring 21, and the fulcrum portion 22 swing the movable module 19 so that the optical axis L <b> 2 of the lens driving device 3 is tilted with respect to the support 4, thereby preventing camera shake. A camera shake correction mechanism for correction is configured.

  Note that, in order to obtain an image without camera shake in the photographic optical device 1, even when the entire photographic optical device 1 is tilted due to camera shake during shooting of the subject, the tilt of the movable module 19 with respect to the subject is set. It is necessary for the movable module 19 to maintain a certain posture with respect to the subject without being changed. Therefore, it is preferable to continue correcting the posture of the movable module 19 with respect to the support 4 while performing feedback control so that the output of the sensor 8 such as an angular velocity sensor is always 0 (zero).

(Main effects of this form)
As described above, in the present embodiment, the sensor 8 constituting a part of the movable module 19 detects the tilt of the movable module 19 (the tilt of the lens driving device 3), and based on the detection result of the sensor 8, The movable module 19 is swung to correct camera shake. For example, during photographing of the subject, the output of the sensor 8 is kept constant and feedback control is performed so as not to change the inclination of the movable module 19 with respect to the subject, and the movable module 19 is swung to correct camera shake. . That is, in the present embodiment, the tilt detection target and the control target at the time of camera shake correction are the same movable module 19. Therefore, in the photographic optical device 1 according to the present embodiment, stable camera shake correction can be performed.

  In this embodiment, the sensor 8 is disposed on the back side of the reflecting member 7 that is opposite to the reflecting surface 7a. Specifically, the sensor 8 is disposed in a space formed by the back surface of the reflecting member 7 and the inner peripheral surface of the case body 15. That is, the sensor 8 is disposed in the space on the back side of the reflecting member 7 that becomes a dead space in the movable module 19. Therefore, in this embodiment, it is possible to reduce the size of the movable module 19 by effectively using the dead space, and as a result, it is possible to reduce the size of the photographing optical device 1.

  Further, in this embodiment, since the movable module 19 can be reduced in size by effectively utilizing the dead space, the distance between the fulcrum portion 22 serving as a fulcrum for the swing of the movable module 19 and the center of gravity of the movable module 19 is reduced. It becomes possible to do. Therefore, the rotational moment of the movable module 19 can be reduced, and the driving force for swinging the movable module 19 can be reduced. As a result, it is possible to reduce the power consumption of the photographic optical device 1. Alternatively, if the power consumption of the photographic optical device 1 is the same, it is possible to use an inexpensive driving magnet 12, reduce the volume of the driving magnet 12, etc., and reduce the cost of the photographic optical device 1. It becomes possible to plan.

  In this embodiment, the sensor 8 is disposed on an extension line of the optical axis L2 of the lens driving device 3. Accordingly, in order to reduce the size of the movable module 19, for example, even if the rigidity of each component constituting the movable module 19 is reduced, the sensor 8 can accurately detect the inclination of the optical axis L2 of the movable module 19. It becomes possible. That is, when the sensor 8 is not arranged on the extension line of the optical axis L2 of the lens driving device 3, if the rigidity of each component constituting the movable module 19 is lowered, the influence of torsion or the like generated in each component Although it becomes difficult to accurately detect the inclination of the optical axis L2 of the movable module 19 by the sensor 8, in this embodiment, the inclination of the optical axis L2 of the movable module 19 can be accurately detected by the sensor 8. become.

  In the present embodiment, the reflecting member 7 is formed by bending the optical axis L1 of the lens by approximately 90 °. Therefore, the movable module 19 can be further downsized in the vertical direction. That is, when the angle formed by the optical axis L1 of the lens and the optical axis L2 of the movable module 19 is an acute angle or an obtuse angle, if the direction of the optical axis L2 coincides with the vertical direction, the movable module 19 moves up and down. In this embodiment, since the angle formed by the optical axis L1 of the lens and the optical axis L2 of the movable module 19 is substantially a right angle, the movable module 19 can be further downsized in the vertical direction. it can. As a result, in this embodiment, the photographic optical device 1 can be further downsized in the vertical direction.

  In this embodiment, the reflecting member 7 and the sensor 8 are disposed and fixed inside the case body 15 that constitutes the outer peripheral surface of the lens driving device 3. Therefore, the reflecting member 7 and the sensor 8 can be handled integrally with the lens driving device 3, and the handling of the reflecting member 7 and the sensor 8 during the assembly of the photographing optical device 1 becomes easy. In addition, the reflecting member 7 and the sensor 8 can be appropriately protected by the case body 15 when the photographing optical device 1 is assembled.

  In this embodiment, the leaf spring 21 holds the movable module 19 so that the movable module 19 can be moved relative to the support 4 in the front-rear, left-right, and vertical directions. Further, the leaf spring 21 urges the movable module 19 toward the fulcrum portion 22. Therefore, the movable module 19 can be urged toward the fulcrum portion 22 without hindering the swinging operation of the movable module 19, and the movable module 19 can be swung in each direction using the fulcrum portion 22 as a fulcrum. .

(Other embodiments)
The above-described embodiment is an example of a preferred embodiment of the present invention, but is not limited thereto, and various modifications can be made without departing from the scope of the present invention.

  In the embodiment described above, the reflecting member 7 is bent by approximately 90 ° along the optical axis L1 of the lens. In addition, for example, the reflecting member 7 may bend the optical axis L1 of the lens at an angle smaller than 90 °, or may bend the optical axis L1 of the lens at an angle larger than 90 °.

  In the embodiment described above, the reflecting member 7 and the sensor 8 are disposed inside the lens driving device 3. In addition to this, for example, the reflecting member 7 and / or the sensor 8 may be disposed outside the lens driving device 3. In this case, for example, a space for arranging the reflecting member 7 and the sensor 8 may be formed between the outer peripheral surface of the case body 15 and the inner peripheral surface of the upper cover member 17.

  In the embodiment described above, the reflection member 7 is, for example, a total reflection mirror, but the reflection member 7 may be an optical component that reflects a part of light incident on the reflection member 7. Moreover, in the form mentioned above, although the reflection member 7 is formed in flat form, the reflection member 7 may be formed in block shape.

DESCRIPTION OF SYMBOLS 1 Optical device for imaging | photography 2 Image pick-up element 3 Lens drive device 4 Support body 5 Oscillation drive mechanism (a part of camera-shake correction mechanism)
7 Reflecting member 7a Reflecting surface 8 Sensor 15 Case body 19 Movable module 21 Leaf spring (part of camera shake correction mechanism)
22 fulcrum (part of the image stabilization mechanism)
L1 Optical axis of lens L2 Optical axis of lens driving device (optical axis of movable module)

Claims (4)

A movable module having a lens driving device on which a lens, an imaging device, and a lens driving mechanism that drives the lens in the direction of the optical axis of the lens are mounted, a support that supports the movable module, and the support And a camera shake correction mechanism that corrects camera shake by swinging the movable module so that the optical axis of the movable module is inclined.
The movable module includes a sensor for detecting the inclination of the movable module, and a reflective member formed with a reflective surface that bends the optical axis of the lens in a predetermined direction.
The imaging optical device according to claim 1, wherein the sensor is disposed on a back side of the reflecting member that is opposite to the reflecting surface.   The photographing optical device according to claim 1, wherein the reflecting member bends the optical axis of the lens by approximately 90 °. The lens driving device includes a case body that constitutes at least a part of the outer peripheral surface of the lens driving device,
The optical device for photographing according to claim 1, wherein the reflecting member and the sensor are disposed inside the case body. A fulcrum part serving as a rocking center of the movable module, and a leaf spring connecting the support and the movable module;
The said leaf | plate spring hold | maintains the said movable module so that a relative movement with respect to the said support body is possible, and urges | biases the said movable module toward the said fulcrum part. An optical device for photographing according to any one of the above.

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