JP2008310178A - Photographing device and portable equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a photographing device for reducing a stress applied onto a wiring material such as a flexible board to prevent the wiring material from being deformed or disconnected, and to provide portable equipment provided with the photographing device. <P>SOLUTION: Spring members SP1-SP3 are inserted between screw heads and an image blur correction unit 200 to attach a casing by screws through through-holes of the image blur correction unit 200, and further through the spring members, when attaching the image blur correction unit 200 to the casing of a cellular phone or the like. The image blur correction unit 200 is slid laterally by a backlash of the through-holes 205A-205C to reduce the stress onto the flexible board FR1, when the image blur correction unit 200 is operated to apply the stress onto the flexible board FR1. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an imaging device including an image blur correction unit and a portable device including the imaging device.

  2. Description of the Related Art Conventionally, various camera shake correction mechanisms have been employed in digital cameras and the like in order to suppress disturbances in captured images caused by user shake (see Patent Documents 1, 2, and 3).

  As such a camera shake correction mechanism, there is one that employs a so-called gimbal mechanism so that a holding module holding a photographing lens can be rotated in a pitching direction and a yawing direction.

  However, in the case of the gimbal mechanism as disclosed in Patent Document 1, it is necessary to arrange rotating joints and the like that freely rotate at four locations on the top, bottom, left, and right of the holding module. There is a tendency.

  Therefore, the shaft point that is one point along the outer periphery of the holding module is supported in a swingable manner, and the first point and the second direction that are different from the axial point along the outer periphery of the holding module are separated from each other. A drive structure for driving the holding module via each of the first drive point and the second drive point has been filed by the present applicant, and Japanese Patent Application Nos. 2006-269712, 2006-269713, and 2006-269714. Japanese Patent Application No. 2006-269715 has been proposed as an unpublished application. Further, the present applicant has made further improvements to these prior applications to improve the position detection accuracy of the holding module when the holding module is oscillating, and image blur correction disclosed in Japanese Patent Application No. 2007-035341. Proposed as a unit. When the drive structures proposed in these applications are realized, the photographing apparatus having an image blur correction function can be reduced in size and can be mounted on a portable device.

  Here, the operation of the image blur correction unit proposed by the applicant will be briefly described.

  FIG. 6 is a diagram for explaining the operation of the image blur correction unit proposed by the present applicant.

  6 (a) and 6 (b) show what kind of trouble occurs in the positional relationship between the lens and the sensor when blurring occurs, and FIG. 6 (c) shows It shows how blur is corrected by an image blur correction unit comprising a lens and a sensor.

  When camera shake does not occur as shown in FIG. 6A, the optical axis of the lens coincides with the optical axis of the light receiving surface (sensor surface) of the sensor, and the subject light is imaged at the correct position. On the other hand, when camera shake occurs, as shown in FIG. 6B, the lens and the sensor surface rotate in the direction of the arrows so that the optical axis of the lens and the optical axis of the sensor surface are shifted and the subject light is in the correct position. No longer forms an image.

  Therefore, when the image blur correction unit is mounted on a mobile device such as a camera-equipped mobile phone and camera shake occurs during shooting, an image blur correction unit composed of a lens and a sensor as shown in FIG. By performing the operation, the subject light is always focused at the correct position on the sensor surface. When the image blur correction unit is mounted on a portable device such as a camera-equipped mobile phone in this way, even if the portable device is rotated by a shooting operation, the posture of the image blur correction unit is always maintained at the posture immediately before the shooting operation, and suitable shooting is possible. Is done.

By the way, when the imaging device is mounted on a portable device, it is necessary to connect an electrical component in a holding module included in the imaging device and a control unit in the portable device with a wiring material such as a flexible substrate. However, since the holding module swings, if the swing is transmitted to the flexible substrate, stress is applied to the flexible substrate. If this stress is continuously transmitted to the flexible substrate, the stress is accumulated, and finally the flexible substrate is deformed or disconnected.
Japanese Patent Laid-Open No. 7-274056 JP 2005-326807 A Japanese Patent No. 2612371

  In view of the above circumstances, an object of the present invention is to provide an imaging device in which stress applied to a wiring material such as a flexible substrate is alleviated and deformation and disconnection of the wiring material are prevented, and a portable device including the imaging device. And

In order to achieve the above object, an imaging apparatus of the present invention includes a holding module that holds a lens, and the holding module that corrects blurring of an image formed by capturing subject light that has passed through the lens. An image blur correction unit having a drive mechanism for driving and a through hole;
A housing having a fixing portion at a position corresponding to the through hole;
The image blur correction unit side has a head having a diameter larger than that of the through hole, and a penetrating portion that extends through the through hole is attached to the fixing portion through the through hole. A fastening member; and a biasing member that is interposed between the head of the fastening member and the image blur correction unit and biases the image blur correction unit toward the housing.

  According to the photographing apparatus of the present invention, the image blur correction unit is fixed to the fixing portion of the casing by the fastening member that passes through the through hole. At this time, the image blur correction unit is urged toward the housing by the urging member inserted between the head of the fastening member and the image blur correction unit, and in the through hole of the through portion of the fastening member. Lateral sliding is allowed and fixed.

  Then, after the electrical components in the holding module of the image blur correction unit and the external control unit are wired with a wiring material, for example, a flexible board, a relatively large stress is likely to be applied to the flexible board due to the swinging of the holding module. In such a case, the image blur correction unit slides along the diameter of the through hole, so that the stress on the flexible substrate is relieved. In other words, the image blur correction unit is fixed by using a through hole to allow the slide to slide, and the stress to the flexible substrate when the holding module is swung by the backlash is alleviated. It is. With this configuration, the stress on the flexible substrate is more effectively relieved than when the image blur correction unit is rigidly fixed as in the prior art. In addition, since the impact such as dropping is absorbed by the backlash, the image blur correcting unit can be protected from the impact such as dropping.

Here, the fastening member is a screw,
The through hole is a through hole having a diameter larger than the outer shape of the portion of the screw disposed in the through hole,
The fixing portion is preferably a screw hole into which the screw is screwed.

  When the fastening member is a screw, if the through hole is substantially the same as the outer shape of the portion of the screw that passes through the through hole, the range in which the image blur correction unit slides is narrowed, and the stress mitigating effect is obtained. Since the diameter of the through hole is larger than the outer diameter of the part that penetrates the through hole of the screw that is the fastening member, the range in which the screw slides is made larger Is more effective.

  When the above-described present invention is applied to Japanese Patent Application No. 2007-035341 filed earlier by the present applicant, further effects can be obtained.

That is, the image blur correction unit further includes a support member that has a support portion that supports the holding module at an axial point that is a point along the outer periphery of the holding module so that the holding module can swing freely.
The holding module is connected to the holding module via a first driving point and a second driving point respectively separated from the axial point along the outer periphery of the holding module in different first and second directions. Two drive mechanisms for driving
The through hole is provided in the vicinity of each of the first driving point and the second driving point.

  Moreover, in the case of the said structure, it is preferable that the said through hole is provided also in the vicinity of the said axial point.

  Then, the image blur correction unit adaptively slides in the through hole according to the movements of the first driving point, the second driving point, and the axial point, and the stress on the flexible substrate is relieved.

In addition, the two driving mechanisms rotate the holding module around a first axis connecting the axis point and the second driving point via the first driving point. Preferably, the mechanism includes a mechanism and a second drive mechanism that rotates around a second axis that connects the axis point and the first drive point via the second drive point. The drive mechanism of
A first arm that rotatably supports the first drive point;
A first coil that is held by the first arm, receives a magnetic force and energization, generates a driving force in the optical axis direction, and causes the first arm to drive the first driving point in the optical axis direction; ,
A first magnet that is held by the support member and applies a magnetic force to the first coil and spreads horizontally with respect to the optical axis;
The first arm that is fixed to the support member and guides the first arm so that a first action point of the first arm that applies a driving force to the first driving point moves in the optical axis direction. And a guide member
The second drive mechanism is
A second arm that rotatably supports the second drive point;
A second coil that is held by the second arm, receives a magnetic force action and energization, generates a driving force in the optical axis direction, and causes the second arm to drive the second driving point in the optical axis direction; ,
A second magnet that is held by the support member and applies a magnetic force to the second coil and spreads horizontally with respect to the optical axis;
The second arm that is fixed to the support member and guides the second arm so that a second action point of the second arm that applies a driving force to the second driving point moves in the optical axis direction. It is good that it is an aspect provided with these guide members.

Further, a change in magnetic force received from the first magnet by the movement of the first arm in the optical axis direction when the first arm drives the first driving point supported by the first arm. A first sensor for detecting
Changes in magnetic force received from the second magnet due to movement of the second arm in the optical axis direction when the second arm is driven by the second arm and drives the second drive point. It is good that it is a mode provided with the 2nd sensor to do,
The holding module may hold the lens and hold an image sensor that captures subject light and generates an image signal.

  The first drive point and the second drive point are substantially the same as a line segment connecting the first drive point and the axis point and a line segment connecting the second drive point and the axis point. It is preferably formed at each position that intersects at an angle of 90 degrees.

Furthermore, it is preferable that the holding module has a spherical convex portion at the axial point, and the support member has a spherical concave surface that receives the convex portion on the support portion,
The holding module has a spherical convex portion at each of the first driving point and the second driving point, and the first arm and the second arm correspond to the first working point and the second driving point, respectively. Each of the two operating points has spherical concave portions that receive the convex portions provided at the first driving point and the second driving point, respectively, and the first arm and the second arm are It is preferable that a driving force is applied to each convex portion through each concave portion.

Furthermore, the photographing apparatus includes a shake detection unit that detects a shake,
It is more preferable that the blur control unit is configured to cause the two drive mechanisms to rotationally drive the holding module according to the detection result of the blur detection unit.

  In addition, a portable device of the present invention that achieves the above object includes any one of the above photographing devices.

  As described above, an imaging device in which stress on the flexible substrate is alleviated and deformation and disconnection of the flexible substrate are prevented, and a portable device including the imaging device is realized.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is an external perspective view of a mobile phone to which an embodiment of the present invention is applied.

  FIG. 1A shows a front view of the mobile phone 100. A liquid crystal panel 101 on which a menu screen, a photographed image, and the like are displayed on the front surface of the mobile phone 100, a speaker (see FIG. 2) is provided inside, and an earpiece 102 for emitting sound emitted from the speaker to the space, A selection button 104 used as a shutter button for selecting various functions and shooting, a push button 105 for inputting a telephone number, and a microphone (see FIG. 3) are provided therein to transmit voice to the microphone. No. 106 for transmitting and receiving images, address information, etc. by wireless communication for short distance without using the confirmation button 107 for confirming the telephone number entered by the user, the power button 108, and the telephone office. Two antennas 109a are provided.

  FIG. 1B shows a rear view of the mobile phone 100. On the back surface of the mobile phone 100, a first antenna 103a and a photographing lens 100a for transmitting and receiving data such as voice and mail via a telephone station are provided. This photographic lens 100a is provided in an image blur correction unit described later.

  FIG. 2 is a block diagram showing an internal configuration of the mobile phone 100 of FIG.

  The mobile phone 100 includes an image blur correction unit 200, an A / D (Analog / Digital) converter 113, a microphone 121, a speaker 122, an interface unit 120, a first antenna 103a, a first transmitter / receiver 103, and an input controller 130. , An image signal processing unit 140, a video encoder 150, an image display device 160, a second antenna 109a, a second transmission / reception unit 109, a memory 170, a CPU 180, a media controller 190, and the selection button 104 and push button 105 shown in FIG. Various switches 181 are provided, and a recording medium 190a is further connected. In the present embodiment, the holding module 202 that holds the lens 100a and the CCD 112 and a drive mechanism (described later) that drives the holding module 202 constitute an example of the image blur correction unit according to the present invention. In addition to the gyro sensor 182 constituting an example of the shake detecting unit, the CPU 180 constituting the example of the shake controlling unit according to the present invention, and drivers DR1 and DR2 for energizing the coils in the drive mechanism, An example of an imaging device of the invention is configured.

  The CPU 180 transmits processing instructions to the various elements of the mobile phone 100 shown in FIG. 2 and controls the various elements. For example, when the selection button 104 in FIG. 1 is pressed in a state in which a shooting mode for shooting is set, an instruction is given from the CPU 180 to the CCD 112 included in the image blur correction unit 200 and camera shake detected by the gyro sensor 182 is detected. The driver DR1 and DR2 are instructed to swing a holding module (described later) included in the image blur correction unit 200 in a direction to cancel the image, and shooting is performed while correcting camera shake. The configuration of the image blur correction unit included in the photographing apparatus 200 will be described in detail later.

  In response to pressing of the selection button 104 in FIG. 1A, the CPU 180 sets an electronic shutter in the CCD 112 in the photographing unit 200 and starts photographing processing.

  At this time, the direction of camera shake when the selection button 104 is pressed is detected by the gyro sensor 182 and notified to the CPU 180. The CPU 180 receives the detection result of the gyro sensor 182 and notifies the drivers DR1 and DR2 of the correction direction, drives the drivers DR1 and DR2 to drive coils (described later) in the photographing unit 200, and shakes the holding module (described later). Shooting is performed while swinging in accordance with. In this way, camera shake when the selection button 104 is pressed is corrected, and subject light is imaged without blurring on the CCD 112.

  The CCD 112 receives subject light that has passed through the photographing lens 100a during the shutter speed of the electronic shutter, and reads a subject image based on the subject light as a subject signal that is an analog signal. The subject signal generated by the CCD 112 is converted into digital captured image data by the A / D conversion unit 113, and the converted captured image data is sent to the image signal processing unit 140 via the input controller 130.

  The image signal processing unit 140 performs image processing such as RGB level adjustment and gamma adjustment on the image data, and further performs compression processing on the image data after the image processing. The compressed image data is once sent to the memory 170.

  The memory 170 stores a program to be executed in the mobile phone 100, a high-speed SDRAM used as an intermediate buffer, data for various menu screens, data stored by a user, and the like. An SRAM that is a storage memory and a VRAM that stores compressed image data are included. The VRAM is divided into a plurality of areas, image data is stored in the plurality of areas in order, and the stored image data is sequentially read out to the video encoder 150 and the media controller 190.

  The video encoder 150 acquires compressed image data from the memory 170 in accordance with an instruction from the CPU 180, and converts the compressed image data into a data format that can be displayed on the liquid crystal panel 101. The converted image data is sent to the image display device 160, and the image display device 160 displays an image represented by the image data on the liquid crystal panel 101. The media controller 190 is for recording the compressed image data stored in the memory 170 on the recording medium 190a and for reading the image data recorded on the recording medium 190a.

  In addition, when a telephone number is input using the push button 105 shown in FIG. 1A and the confirm button 107 is pressed, the telephone number is set and communication with the partner apparatus is started. At this time, communication information such as the telephone number of the mobile phone 100 and the input telephone number is transmitted from the CPU 180 to the first transmission / reception unit 103, the communication information is converted into radio waves and transmitted to the antenna 103a, and radio waves are transmitted from the antenna 103a. Be emitted. The radio wave emitted from the first antenna 103a is transmitted to a telephone station via a joint antenna (not shown) provided at various places such as a building and a power pole, and the other party to which a designated telephone number is assigned at the telephone station. A connection with the device is established.

  When the connection with the counterpart device is established, the voice uttered by the user toward the mobile phone 100 is collected by the microphone 121, and the collected voice is converted into radio waves representing voice data by the interface unit 120. 1 is transmitted to the counterpart device by the first antenna 103a of the transceiver 103. The radio wave received via the first antenna 103a is converted into audio data by the interface unit 120 and emitted from the speaker 122 as audio. The first transmission / reception unit 103 and the first antenna 103a transmit / receive not only voice data but also mail data representing mail using a mail address instead of a telephone number. The mail data received by the first antenna 103a and digitized by the first transmission / reception unit 103 is stored in the memory 170 by the input controller 130.

  In addition, the mobile phone 100 does not pass through the telephone office, apart from the communication interface (the first transmitting / receiving unit 103 and the first antenna 103a) for communicating with other devices such as other mobile telephones through the telephone office. In addition, a wireless communication interface (second transmission / reception unit 109, second antenna 109a) for performing communication by short-range wireless communication is also provided. As a communication interface for near field communication, infrared communication, Bluetooth, or the like can be applied. In the present embodiment, infrared communication is applied as a communication interface. When infrared light directly transmitted from another mobile phone or the like is received by the second antenna 109a, an electric signal based on the received infrared light is transmitted. 2 Picked up by the transmitting / receiving unit 109 and converted into digital data. Conversely, when data is transmitted to the external device, the data is transmitted to the second transmission / reception unit 109, and the data is converted into radio waves by the second transmission / reception unit 109 and emitted from the second antenna 109a.

  When infrared rays representing an image are received by the second antenna 109a, the second transmitting / receiving unit 109 converts an electrical signal based on the infrared rays into image data. The converted image data is sent to the image display device 160 and the image represented by the image data is displayed on the liquid crystal panel 101 or recorded on the recording medium 190a via the media controller 190 in the same manner as the captured image data. .

  The mobile phone 100 is basically configured as described above.

  Next, the configuration of the image blur correction unit included in the photographing device included in the mobile phone 100 will be described.

  FIG. 3 is an exploded perspective view of the image blur correction unit 200 which is a component constituting the photographing apparatus. FIG. 4 is a view showing the image blur correction unit 200 after each member shown in the exploded perspective view of FIG. 3 is incorporated.

  3 and 4, the lower left corresponds to the subject side.

  In FIG. 3, the coils formed on both the cover 201, the holding module 202, the substrate 203A extending in the first direction of FIG. 3 and the substrate 203B extending in the second direction of FIG. A flexible substrate FR2 for energization, a pair of arms ARM1 and ARM2 holding the substrates 203A and 203B on which the coils are formed, and an N pole and an S pole so as to face the coils formed on the substrates 203A and 203B. The U-shaped yokes 204A and 204B for holding the magnets MAG1 and MAG2 on which the magnets are arranged are movably supported, and the two yokes 204A and 204B are respectively in the first direction and the second direction. The support members 205 fixed to the surfaces extending in the order are shown in a disassembled state in order. When these are assembled, the image blur correction unit 200 shown in FIG. 4 is obtained.

  First, the configuration will be described with reference to FIG.

  The rightmost side of FIG. 3 shows a dog-shaped support member 205 that supports the holding module 202 and a driving mechanism for swinging the holding module 202. Two driving mechanisms for swinging the holding module 202 are supported by the support member 205 and the holding module 202 is swingably supported. The support member 205 is provided with three through holes 205A to 205C for attaching the image blur correction foot of the present invention to the casing of the portable device.

  The support member 205 is provided with guide members 2051, 2052, 2053 through which holes H1, H2, H3, H4 provided at both ends of the two arms ARM1, ARM2 are respectively inserted. ing. These guide members 2051 to 2053 are respectively provided at the apexes of the support member 205 having a dogleg shape, and the central guide member 2051 has holes at both ends of both arms ARM1 and ARM2. Of these, the hole H1 and the hole H3 are inserted in common.

  That is, one arm ARM1 of the two is inserted into the guide member 2051 at the apex of the center of the V shape of the support member 205 and the guide member 2052 at the apex on the one end side of the V shape, The other arm ARM2 is inserted through the guide member 2051 at the apex of the center of the dogleg shape and the guide member 2053 at the apex on the other end side. Although not shown in the figure, the holding module side on one end side of the arms ARM1 and ARM2 (where the holes H2 and H4 are provided) engages with a spherical convex portion on the holding module side. Recesses are provided respectively. Further, a support part for supporting the holding module 202 is provided on the holding module side of the central portion of the V shape of the support member 205, and a concave part is provided in this support part.

  In addition, U-shaped yokes 204A and 204B are bonded and fixed to the surface extending in the first direction and the surface extending in the second direction in FIG. It has come to be. Since these U-shaped yokes 204A and 204B are arranged so that the openings are directed to the side where the substrates 203A and 203B on which the coils are formed are located, they are parallel to the magnets MAG1 and MAG2 from the respective opening sides. Thus, the substrates 203A and 203B are arranged so as to be accommodated. Each of the substrates 203A and 203B is connected to a flexible substrate FR2 for energizing a coil on the substrate. The substrates 203A and 203B on which the coils are formed are provided with a Hall element for detecting the position of the holding module 202 that swings according to the movement of the arms ARM1 and ARM2.

  As described above, the support portion for supporting the lens holding frame 202 by engaging the spherical convex portion of the lens holding frame 202 on the lens holding frame 202 side of the central apex portion of the V-shaped support member 205. Since the convex portion PB of the lens holding frame 202 is engaged with the concave portion, the concave portion is provided on each of the two arms ARM1 and ARM2 movably supported by the support member 205. When the spherical concave portion engages with the convex portion of the first driving point D1 and the convex portion of the second driving point D2 of the lens holding frame 202, the lens holding frame 202 can swing freely as shown in FIG. It will be supported by 205.

  In this example, the support member 205, the arm ARM1, the substrate 203A on which the coil is formed, and the yoke 204A to which the magnet MAG1 is attached constitutes an example of the first drive mechanism according to the present invention, and the support member 205 and the arm ARM2 The substrate 203B on which the coil is formed and the yoke 204B to which the magnet MAG2 is attached constitutes an example of the second drive mechanism referred to in the present invention. The first driving mechanism rotates the lens holding frame 202 around the first axis connecting the axis point PB and the second driving point D2 via the first driving point D1 and the second axis. The driving mechanism of the lens is pivoted about the second axis connecting the axis point PB and the first driving point D1 via the second driving point D2, thereby swinging the lens holding frame 202. Become.

  In FIG. 3, in order to show the first driving point D1 and the second driving point D2, rod-shaped members 2021A and 2021B having spherical convex portions and springs 2022A inserted through the rod-shaped members 2021 are shown. 2022B is shown respectively. Each spring 2022 is a member having a function of preventing movement of each of the two arms ARM1 and ARM2 when the coil is not energized, and each spring has a convex portion (first portion when the coil is not energized. The driving point D1 and the second driving point D2) are pressed against the recess on the arm side by spring bias, and then the coil is deenergized and then the arm is stopped at the position where the coil was deenergized. It has a function.

  Further, in this example, since the holding module 202 is configured to hold the CCD 112 in addition to the lens, the flexible substrate FR1 for image signal transfer is connected to the swinging holding module 202. One end of the flexible substrate FR1 is connected to the sensor substrate PCB on which the CCD 112 is mounted, and a portion extending at least first from the sensor substrate PCB extends outward from the holding module 202 and the first point PB. Are connected so as to extend in an oblique direction with respect to both the first direction connecting the driving points D1 and the second direction connecting the axis point PB and the second driving point D2. In this way, even if the holding module swings, the swing is not transmitted to the flexible substrate. The flexible substrate FR1 is provided with an attachment through hole 112H for attaching the image blur correction unit 200 to the casing on the portable device side in cooperation with the through hole 205A of the support member 205.

  The description related to the image blur correction unit 200 so far is almost the same as the description of the configuration proposed in Japanese Patent Application No. 2007-035341.

  Here, in the present embodiment, in addition to preventing the flexible substrate FR1 from being stressed by pulling the flexible substrate FR1 obliquely from the vicinity of the axis PB, the stress on the flexible substrate FR1 is further reduced. In addition to the configuration of Japanese Patent Application No. 2007-035341, a structure for mounting the image blur correction unit 200 to the mobile phone casing for the purpose is proposed.

  FIG. 5 is a diagram illustrating a situation when the image blur correction unit 200 is attached to the housing of the mobile device 100.

  As described with reference to FIG. 3, the support member 205 is provided with three through holes 205 </ b> A to 205 </ b> C for attaching the image blur correction unit 200 to the casing of the mobile phone 100.

  When the image blur correction unit 200 shown in FIG. 3 is mounted inside the casing of the mobile phone, the image blur correction unit 200 has a screw head and passes through the through holes 205A to 205C and is screwed into the screw holes on the casing side. And the biasing member interposed between the screw heads of the screws SC1 to SC3 and the image blur correction unit 200 and biasing the image blur correction unit toward the housing 100A of the mobile phone 100. It is attached to the housing by spring members SP1 to SP3. Each of the through holes 205A to 205C provided in the support member 205 is a through hole having a diameter larger than the outer shape of the screw, and the image blur correction unit is pressed against the housing by the spring member and attached. The image blur correction unit 200 can only slide in the lateral direction.

  When the image blur correction unit 200 is attached to the casing on the portable device in this way, stress is likely to be applied to the flexible substrate FR1 when the holding module 202 included in the image blur correction unit 200 is swinging. When the image blur correction unit 200 itself slides, the stress on the flexible substrate FR1 is alleviated.

  FIG. 5 also shows a washer for enabling the spring members SP1 to SP3 to be more efficiently pressed by the screw heads of the screws SC1 to SC3. Moreover, in the said embodiment, although the screw was used as a fastening member, other fastening members, such as a rivet, may be sufficient.

1 is an external perspective view of a mobile phone device to which an embodiment of the present invention is applied. It is a block diagram which shows the internal structure of the mobile telephone device 100 of FIG. It is a disassembled perspective view of an image blur correction unit. It is a figure which shows the state after an image blurring correction unit is assembled by each member shown by the exploded perspective view of FIG. 6 is a diagram illustrating a situation when the image blur correction unit 200 is attached to the mobile device 100. FIG. It is a figure explaining the effect | action of the said image blur correction unit which this applicant proposes.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Mobile phone 101 Liquid crystal panel 102 Mouthpiece 103a 1st antenna 104 Selection button 105 Push button 106 Earpiece 107 Confirmation button 108 Power button 109a 2nd antenna 112 CCD
113 A / D conversion unit 120 Interface unit 121 Microphone 122 Speaker 130 Input controller 140 Image signal processing unit 150 Video encoder 160 Image display device 170 Memory 180 CPU
181 Various switches 200 Image blur correction unit 100a Lens 201 Cover 202 Holding module 203A 203B Substrate 204A 204B Yoke 205 Support member 2051 2052 2053 Guide member FR1 FR2 Flexible substrate ARM1 ARM2 Arm PB Axis point (spherical convex part)
D1 1st driving point (spherical convex part)
D2 Second driving point (spherical convex part)

Claims (13)

Image blur correction comprising: a holding module that holds a lens; a drive mechanism that drives the holding module so that blurring of an image formed by capturing subject light that has passed through the lens is corrected; and a through hole unit,
A housing having a fixing portion at a position corresponding to the through hole;
The image blur correction unit side has a head having a diameter larger than that of the through hole, and a penetrating portion passing through the through hole passing through the through hole passes through the through hole and is attached to the fixing portion. An imaging apparatus comprising: a fastening member; and a biasing member that is interposed between a head of the fastening member and the image blur correction unit and biases the image blur correction unit toward the housing. . The fastening member is a screw;
The through hole is a through hole having a diameter larger than that of the portion of the screw disposed in the through hole,
The photographing apparatus according to claim 1, wherein the fixing portion is a screw hole into which the screw is screwed. The image blur correction unit further includes a support member having a support portion that supports the holding module at an axial point that is a point along the outer periphery of the holding module so that the holding module can swing freely.
The holding module is connected to the holding module via a first driving point and a second driving point that are separated from the axial point in the first direction and the second direction, respectively, along the outer periphery of the holding module. Two drive mechanisms for driving
The photographing apparatus according to claim 1, wherein the through hole is provided in the vicinity of each of the first driving point and the second driving point.   The photographing apparatus according to claim 3, wherein the through hole is also provided in the vicinity of the axial point.   The two drive mechanisms rotate the holding module around a first axis connecting the axis point and the second drive point via the first drive point. And a second drive mechanism that rotates around a second axis that connects the axis point and the first drive point via the second drive point. The imaging device according to 3 or 4. The first drive mechanism is
A first arm that rotatably supports the first drive point;
A first coil that is held by the first arm, receives a magnetic force and current, generates a driving force in the optical axis direction, and causes the first arm to drive the first driving point in the optical axis direction; ,
A first magnet that is held by the support member and applies a magnetic force to the first coil and spreads horizontally with respect to the optical axis;
A first guide that is fixed to the support member and guides the first arm so that a first action point of the first arm that applies a driving force to the first drive point moves in the optical axis direction. And a guide member
The second drive mechanism is
A second arm that rotatably supports the second drive point;
A second coil which is held by the second arm, receives a magnetic force action and energization, generates a driving force in the optical axis direction, and causes the second arm to drive the second driving point in the optical axis direction; ,
A second magnet that is held by the support member and applies a magnetic force to the second coil and spreads horizontally with respect to the optical axis;
The second arm that is fixed to the support member and guides the second arm so that a second action point of the second arm that applies a driving force to the second driving point moves in the optical axis direction. The imaging device according to claim 3, further comprising: a guide member. Further, a change in magnetic force received from the first magnet by the movement of the first arm in the optical axis direction when the first arm drives the first driving point supported by the first arm. A first sensor for detecting
Changes in magnetic force received from the second magnet due to movement of the second arm in the optical axis direction when the second arm drives the second drive point supported by the second arm are detected. The photographing apparatus according to claim 6, further comprising: a second sensor that performs the above-described operation.   8. The photographing apparatus according to claim 1, wherein the holding module holds a lens and holds an image sensor that captures subject light and generates an image signal. 9. .   The first drive point and the second drive point are substantially equal to each other by a line segment connecting the first drive point and the axis point and a line segment connecting the second drive point and the axis point. 9. The photographing apparatus according to claim 3, wherein the photographing apparatus is formed at each position that intersects at an angle of degrees.   The holding module has a spherical convex portion at the axial point, and the support member has a spherical concave surface that receives the convex portion at the support portion. The imaging device according to claim 1.   The holding module has spherical convex portions at the first driving point and the second driving point, respectively, and the first arm and the second arm are the first action point and the second driving point, respectively. Each of the two operating points has spherical concave portions that receive the convex portions provided at the first driving point and the second driving point, respectively, and the first arm and the second arm are 11. The photographing apparatus according to claim 6, wherein a driving force is applied to each convex portion through each concave portion. A blur detection unit for detecting blur;
The blur control unit that causes the two drive mechanisms to rotationally drive the holding module according to the detection result of the blur detection unit, according to any one of claims 1 to 11. The imaging device described.   A portable device comprising the photographing apparatus according to any one of claims 1 to 12.

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