JP5103977B2 - Flexible substrate, camera shake correction unit, and imaging apparatus - Google Patents

Description

  The present invention relates to a flexible board that enables electrical connection between a plurality of electronic components, and more particularly to a flexible board, a camera shake correction unit, and an imaging apparatus that are used in an imaging apparatus having a camera shake correction mechanism.

  In recent years, with the spread of personal computers, digital still cameras (hereinafter referred to as “digital cameras”) that record images in the form of digital data on a memory card encapsulating a non-volatile semiconductor memory instead of a silver salt film are widely used. Generally popular.

  Some digital cameras of this type have a so-called camera shake correction mechanism in which a photographed image is blurred during low-speed shutter or telephoto shooting. As typical examples of such a mechanism, lens shift type camera shake correction and sensor shift type camera shake correction are known. Here, the lens shift type image stabilization method is a method that corrects camera shake by bending the optical axis by moving a part of the lens so that the gyro sensor or the like detects the movement of the camera and cancels the movement. The sensor shift type camera shake correction is a method of correcting the camera shake by moving the image sensor so that the gyro sensor or the like detects the movement of the camera and cancels the movement.

  By the way, in the sensor shift type camera shake correction described above, the substrate on which the sensor is arranged is driven for camera shake correction. Further, in order to perform this driving operation smoothly, it is desirable to reduce the weight of the sensor arrangement substrate and reduce its inertia. In order to meet such a demand, a processing circuit for processing an output signal from the image sensor is not provided on the same substrate as the sensor arrangement substrate, but is provided on an external substrate other than the sensor arrangement substrate. In this case, in order to exchange signals etc. output from the image sensor, one using a flexible substrate for electrical connection wiring between the sensor arrangement substrate and the external substrate is known (for example, Patent Document 1). reference.).

Here, the flexible substrate used for the conventional sensor shift type camera shake correction has a form as shown in FIG. 10, for example. That is, as shown in FIG. 10, the conventional flexible cable has a sensor mounted and a first surface extending in the X-axis direction among the XY axes in a plane orthogonal to the optical axis (Z-axis). A surface that is bent at a substantially right angle at the end of the surface and is provided as a surface that is substantially orthogonal to the first surface, a second surface that extends in the direction of the X-axis, and a second surface that is connected to the second surface. And a fourth surface extending in the direction of the Y-axis, and a slit is provided from the first surface to the second surface.
JP 2006-178045 A

  However, in the above conventional technique, as shown in FIG. 10, even if a slit is provided in the flexible substrate, the external force accompanying the shake from the Y-axis direction is received in the shear direction of the flexible substrate. There was a problem of not being able to absorb enough stress.

  Therefore, the present invention has been made in view of the above-described problems, and an object of the present invention is to provide a flexible substrate, a camera shake correction unit, and an imaging device that can easily absorb external force stress accompanying camera shake.

The present invention proposes the following matters in order to solve the above problems.
(1) The present invention is a flexible substrate on which an image pickup device arranged at an image formation position of a camera is mounted, and the X-axis among the XY axes in a plane orthogonal to the optical axis on which the image pickup device is mounted. A first surface extending in the direction and an end portion of the first surface, and are continuously provided as a surface substantially orthogonal to the first surface, extending in the Y-axis direction, and absorbing oscillation in the X-axis direction. The second surface is bent at the end of the second surface, and is continuously provided as a surface substantially orthogonal to the first surface, and extends substantially parallel to the first surface on the first surface side. a third surface that absorbs rocking of the axial bent substantially at a right angle in a direction away from the first surface at the end of the third surface, and a fourth surface extending in the Y-axis direction, the further comprising a first series設面articulating bent substantially at a right angle at the end portion of the first surface, the first communication設面are you connected the second surface bent about 180 degrees at the end It proposes a flexible substrate characterized by and.

( 2 ) The present invention proposes a flexible substrate characterized in that the second surface and the third surface of the flexible substrate of ( 1 ) are folded in the width direction.

( 3 ) The present invention is a flexible substrate on which an image pickup device arranged at an image forming position of a camera is mounted, and the X-axis among the XY axes in a plane orthogonal to the optical axis on which the image pickup device is mounted. A first surface extending in the direction and an end portion of the first surface, and are continuously provided as a surface substantially orthogonal to the first surface, extending in the Y-axis direction, and absorbing oscillation in the X-axis direction. The second surface is bent at the end of the second surface, and is continuously provided as a surface substantially orthogonal to the first surface, and extends substantially parallel to the first surface on the first surface side. A third surface that absorbs axial oscillation, and a fourth surface that is bent at a substantially right angle in a direction away from the first surface at an end of the third surface and extends in the Y-axis direction, and is free It is a straight ribbon shape extending with a certain width in the state, and the second surface is an intermediate portion between the first surface and the second surface. Is formed by bending so as to be substantially perpendicular to the plane that said third surface is formed by bending the end surface of the continuously arranged and the fourth surface so that said second surface substantially perpendicular to the plane We have proposed a flexible substrate characterized by

( 4 ) The present invention proposes a flexible substrate characterized in that, with regard to the flexible substrate of (1) to ( 3 ), a fixing portion fixed to the imaging unit is provided on the third surface. .

( 5 ) The present invention proposes a flexible substrate characterized in that, in the flexible substrate of (1) to ( 3 ), the connecting portion between the second surface and the third surface is formed by a curved surface. Yes.

( 6 ) The present invention is a camera shake correction unit including a flexible substrate on which an image pickup device disposed at an imaging position of a camera is mounted, and the image pickup device is mounted on an XY in a plane perpendicular to the optical axis. Of the shafts, a first surface extending in the X-axis direction and a bent portion at an end of the first surface, a surface that is substantially orthogonal to the first surface, extends in the Y-axis direction, and extends in the X-axis direction. A second surface that absorbs the swinging of the first surface, and a second surface that is bent at an end of the second surface, is provided as a surface that is substantially orthogonal to the first surface, and the first surface on the first surface side. A third surface that extends substantially in parallel and absorbs oscillation in the Y-axis direction, and a fourth surface that is bent at a substantially right angle in a direction away from the first surface at the end of the third surface and extends in the Y-axis direction. A flexible substrate, a first housing to which the flexible substrate is fixed, and the imaging element is fixed. The first located inside of the housing includes a second housing is movable in the XY-axis direction, a first series設面articulating bent substantially at a right angle at the end portion of the first surface further comprising a first series設面proposes image stabilization unit you characterized by connecting a second surface bent about 180 degrees at the end.

( 7 ) The present invention provides an image sensor disposed at an imaging position of a subject, a first surface in which the image sensor is mounted and extending in the X-axis direction among XY axes in a plane orthogonal to the optical axis, A second surface that is bent at an end of the first surface, is provided as a surface substantially orthogonal to the first surface, extends in the direction of the Y-axis, and absorbs oscillation in the X-axis direction; It is bent at the end of the surface, is continuously provided as a surface substantially orthogonal to the first surface, extends to the first surface side substantially parallel to the first surface, and absorbs the swing in the Y-axis direction. An image is picked up by the imaging device, and a flexible substrate including a third surface, a fourth surface that is bent at a substantially right angle in a direction away from the first surface at an end of the third surface, and extends in the Y-axis direction. Recording means for acquiring and recording the captured image through the flexible substrate, camera shake detection means for detecting camera shake, and camera shake detection Depending on the camera shake is detected by means, and a camera shake correction means for correcting a camera shake at the time of imaging by the imaging device by driving the imaging element, is connected substantially perpendicularly bent at the end of the first surface further comprising a first communication設面, the first communication設面proposes an imaging apparatus characterized that you connected the second surface bent about 180 degrees at the end.

  According to the present invention, there is an effect that it becomes easy to absorb the stress of the external force accompanying the hand shake.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
Note that the constituent elements in the present embodiment 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 present embodiment does not limit the contents of the invention described in the claims.

<First Embodiment>
The imaging unit 1 using the flexible substrate according to the present embodiment has a camera shake correction function for correcting (suppressing) blurring of a subject image in an image due to camera shake. As shown in FIG. 1, a CCD (Charge Coupled) A flexible substrate 10a mounted with Devices 5 is fixed to the imaging unit housing 2 so as to be swingable in the X-axis direction and the Y-axis direction.

  Further, the imaging unit 1 in which the flexible substrate 10a according to the present embodiment is used has a photographing lens (fixed to the imaging unit housing 2) as shown in FIG. A photographic optical system).

  The photographic lens 3 mainly includes a lens barrel 31 and a plurality of lens groups 32 and a diaphragm 33 provided inside the lens barrel 31. The photographing lens 3 is configured as a zoom lens, and the focal length (imaging magnification) can be changed by changing the arrangement of the lens group 32 in the optical axis direction of the photographing lens 3. In addition, the optical image of the subject formed through the photographing lens 3 is formed on the imaging plane of the CCD 5.

  A CCD 5 that is swingably fixed to the imaging unit housing 2 is disposed behind the optical axis of the photographing lens 3. The CCD 5 is an image sensor composed of fine pixel groups each provided with a color filter, and an optical signal (subject image) of a subject formed by the photographing lens 3 is converted into an image signal having, for example, RGB color components. To photoelectric conversion. The CCD 5 is fixedly arranged in the CCD moving unit 50 and can be moved by the CCD moving unit 50 in the XY plane orthogonal to the optical axis.

  In addition, a vibration sensor 40 such as a gyro sensor is provided inside the imaging unit housing 2 to detect vibration caused by hand shake. The vibration sensor 40 includes, for example, two angular velocity sensors (a first angular velocity sensor and a second angular velocity sensor), and an angular velocity of rotational vibration about the Y axis is detected by the first angular velocity sensor, and a second angular velocity is detected. The angular velocity of rotational vibration about the X axis is detected by the sensor. Based on the two angular velocities detected by the vibration sensor 40, the CCD 5 is moved in the respective directions of the Y axis and the X axis, thereby correcting the blur of the subject image in the image, that is, the camera shake correction. It will be.

<Functional block>
FIG. 3 is a diagram illustrating a main functional configuration of a digital camera on which the imaging unit 1 using the flexible substrate according to the present embodiment is mounted as a functional block.

  As shown in FIG. 3, each processing unit of the digital camera such as the CCD 5, the CCD moving unit 50, the CCD position sensor 58, the vibration sensor 40, the shutter button 61, the operation button 62, and the LCD 63 is electrically connected to the overall control unit 7. Thus, it operates under the control of the overall control unit 7. At the same time, the position of the CCD 5 detected by the CCD position sensor 58, the angular velocity detected by the vibration sensor 40, the operation content of the shutter button 61, the operation content of the operation button 62, etc. are respectively set as signals in the overall control unit. 7 is input.

  The photographing lens 3 includes a zoom / focus drive unit 321 and an aperture drive unit 331. The zoom / focus drive unit 321 appropriately drives the lenses included in the lens group 32 in the Z-axis direction so that the focal length is set by the user and is in focus (focusing). The aperture driving unit 331 adjusts the aperture diameter of the aperture 33 so that the aperture value set by the overall control unit 7 is obtained. The zoom / focus drive unit 321 and the aperture drive unit 331 are also electrically connected to the overall control unit 7 and operate under the control of the overall control unit 7.

  In FIG. 3, an A / D conversion unit 21, an image processing unit 22, and an image memory 23 indicate processing units that handle images acquired by the CCD 5. That is, the analog signal image acquired by the CCD 5 is converted into a digital signal by the A / D conversion unit 21, subjected to predetermined image processing by the image processing unit 22, and then temporarily stored in the image memory 23. Stored. The image stored in the image memory 23 is recorded on the memory card 9 as a recording image, or displayed on an LCD (Liquid Crystal Display) 63 as a live view display image. Various processes for such an image are also performed based on the control of the overall control unit 7.

  The overall control unit 7 includes a microcomputer. That is, the overall control unit 7 includes a CPU (Central Processing Unit) 70 that performs various arithmetic processes, a RAM (Random Access Memory) 75 that is a work area for performing arithmetic operations, and a ROM (Read) that stores a control program and the like. Only memory) 76 and controls the operation of each processing unit of the digital camera as described above. As the ROM 76 which is a non-volatile memory, for example, an EEPROM capable of electrically rewriting data is adopted. As a result, the ROM 76 can rewrite data and retains the contents of the data even when the power is turned off.

  The overall control unit 7 has various control functions such as automatic focusing control (AF (Automatic Focus) control), automatic exposure control (AE (Automatic Exposure) control), and camera shake correction control. Various functions of the overall control unit 7 are realized by the CPU 70 performing arithmetic processing in accordance with a control program stored in the ROM 76 in advance. Further, in FIG. 3, functional units (AF control unit 71, AE control unit 72, camera shake correction control unit 73) that realize each function are shown for convenience.

  The AF control unit 71 functions when the shutter button 61 is half-pressed by the user. For example, an evaluation value calculation operation for performing automatic focusing control in a hill-climbing method (also referred to as a video method or a contrast method) I do. Here, for the image component corresponding to a predetermined AF evaluation area in the image, the sum of absolute differences between two pixels adjacent in the horizontal direction is calculated as an AF evaluation value (focusing evaluation value). Then, the AF control unit 71 obtains a focus position using this AF evaluation value, and drives the photographing lens 3 toward the focus position. In other words, the AF control unit 71 realizes automatic focusing control by adjusting the focal position of the taking lens 3 using the focusing evaluation value.

  The AE control unit 72 divides the image into a plurality of blocks, and calculates an AE evaluation value based on the representative luminance value of each block. Automatic exposure control is realized using this AE evaluation value.

  The overall control unit 7 performs control for realizing a camera shake correction function. Specifically, based on the two angular velocities input from the vibration sensor 40, the camera shake correction control unit 73 derives the amount of movement of the subject image due to vibration and the position where the CCD 5 should move corresponding to the direction.

  The camera shake correction control unit 73 compares the current position of the CCD 5 obtained from the CCD position sensor 58 with the derived destination position, and derives the amount and direction of movement of the CCD 5 to be moved. Further, a drive pulse corresponding to the derived movement amount and direction is generated, and this drive pulse is transmitted to the actuator of the CCD moving unit 50, thereby moving the CCD 5 to the destination position. In this way, the closed position control for deriving the destination position corresponding to the vibration of the digital camera, comparing the current position of the CCD 5 with the destination position, and sequentially moving the position of the CCD 5 to the destination position is performed. Thus, the blurring of the subject image in the image is corrected. As described above, the CCD moving unit 50 functions as a camera shake correction mechanism under the control of the overall control unit 7.

<Configuration of flexible substrate>
As shown in FIG. 4, the flexible substrate 10 a according to the present embodiment has a first surface on which an imaging element is mounted and extends in the X-axis direction among the XY axes in a plane orthogonal to the optical axis, and the first surface. A second surface that is bent at a substantially right angle at the end of the XY axis and is continuously provided as a surface that is substantially orthogonal to the first surface, and extends in the Y-axis direction among the XY axes that are orthogonal to the optical axis, and the second surface A third surface that is bent substantially perpendicularly to the direction of the first surface at the end of the first surface, is provided as a surface that is substantially orthogonal to the first surface and extends substantially parallel to the first surface, and an end of the third surface And a fourth surface that extends in the Y-axis direction and is bent at a substantially right angle in a direction away from the first surface. Further, a fixing portion for fixing to the imaging unit is provided on the third surface.

  In the flexible substrate 10a according to the present embodiment, as shown in FIG. 4, the second surface is bent at a substantially right angle at the end portion of the first surface, and is continuously provided as a surface substantially orthogonal to the first surface. Among the XY axes that are orthogonal to the optical axis, it extends in the direction of the Y axis. Therefore, the swing in the X-axis direction of the CCD moving unit 50 accompanying the camera shake correction can be absorbed not in the shearing direction of the flexible substrate 10a but in the surface direction.

  The third surface is bent at a substantially right angle in the direction of the first surface at the end of the second surface, and is provided as a surface that is substantially orthogonal to the first surface and extends substantially parallel to the first surface. Configured. Therefore, the swing in the Y-axis direction of the CCD moving unit 50 accompanying the camera shake correction can be absorbed not in the shearing direction of the flexible substrate 10a but in the surface direction.

  In addition, since a fixing portion for fixing the flexible substrate to the imaging unit housing is provided on the third surface sufficiently spaced from the first surface on which the imaging element is mounted, unnecessary external force due to camera shake is provided. It is not given to the flexible substrate.

  Therefore, according to the flexible substrate 10a according to the present embodiment, the flexible substrate 10a is less likely to be twisted due to the swing of the CCD moving unit 50. Therefore, the flexible substrate 10a is provided with a slit for avoiding the stress due to the twist. There is no need to provide it. Further, since the CCD moving unit 50 is configured to absorb the swing in the X-axis direction or the Y-axis direction in the surface direction of the flexible substrate 10a, it is not necessary to use a special soft material.

  Further, since the CCD moving portion 50 is swung in the X-axis direction or the Y-axis direction in the plane direction of the flexible substrate 10a, the flexible substrate generated with the swinging of the CCD moving portion 50 as in the prior art. Since there is no need to lengthen the swinging portion, the total length of the flexible substrate can be shortened. Therefore, as compared with the conventional flexible substrate, there is an advantage that the cost can be reduced while effectively absorbing the stress accompanying the swing of the CCD moving unit 50.

  In addition, since the stress that accompanies the swing of the CCD moving unit 50 can be effectively absorbed, the same effect can be obtained even if the thickness of the signal line handling the width of the flexible substrate is increased. There are advantages. Furthermore, since the fourth surface is substantially parallel to the first surface, there is an advantage that it can be easily mounted even in a thin imaging device.

<Second Embodiment>
This embodiment is a modification example that is different from the first embodiment only in the configuration of the flexible substrate. Therefore, detailed description of functional blocks and the like is omitted.

<Configuration of flexible substrate>
As shown in FIG. 5, the flexible substrate 10 b according to the present embodiment has a first surface on which an image sensor is mounted and extends in the X-axis direction among the XY axes in a plane orthogonal to the optical axis, and the first surface. A first continuous surface that is bent at a substantially right angle at the end of the first continuous connection surface, and is bent at approximately 180 degrees at the end of the first continuous connection surface, and is connected to the XY axis orthogonal to the optical axis. A second surface extending in the direction of the axis and an end of the second surface are bent at a substantially right angle to the direction of the first surface to form a surface substantially orthogonal to the first surface, which is substantially continuous with the first surface. A third surface that extends in parallel and a fourth surface that extends in the Y-axis direction and is bent at a substantially right angle in a direction away from the first surface at the end of the third surface. Furthermore, a fixing portion for fixing to the imaging unit is provided on the third surface.

  In the flexible substrate 10b according to the present embodiment, as shown in FIG. 5, a first continuous surface that is bent at a substantially right angle at an end portion of the first surface and is continuously provided, and an end portion of the first continuous surface is approximately. The second surface is bent 180 degrees and is continuously provided. For this reason, the swing in the X-axis direction of the CCD moving unit 50 due to camera shake correction is received by the folded portion of the flexible substrate 10b, and therefore, it can be absorbed not in the shearing direction of the flexible substrate 10b but in the surface direction.

  In addition, the second surface has a third surface that is bent substantially perpendicular to the direction of the first surface at the end of the second surface, and is provided as a surface that is substantially orthogonal to the first surface and extends substantially parallel to the first surface. ing. Therefore, the swing in the Y-axis direction of the CCD moving unit 50 accompanying the camera shake correction can be absorbed not in the shearing direction of the flexible substrate 10b but in the surface direction.

  In addition, since a fixing portion for fixing the flexible substrate to the imaging unit housing is provided on the third surface sufficiently spaced from the first surface on which the imaging element is mounted, unnecessary external force due to camera shake is provided. It is not given to the flexible substrate.

  Therefore, according to the flexible substrate 10b according to the present embodiment, the flexible substrate 10b is less likely to be twisted due to the swing of the CCD moving unit 50. There is no need to provide it.

  Further, since the CCD moving unit 50 is configured to absorb the swing in the X-axis direction or the Y-axis direction in the surface direction of the flexible substrate 10b, it is not necessary to use a special soft material. Therefore, as compared with the conventional flexible substrate, there is an advantage that the cost can be reduced while effectively absorbing the stress accompanying the swing of the CCD moving unit 50.

  In addition, since the stress that accompanies the swing of the CCD moving unit 50 can be effectively absorbed, the same effect can be obtained even if the thickness of the signal line handling the width of the flexible substrate is increased. There are advantages. Furthermore, since the fourth surface is substantially parallel to the first surface, there is an advantage that it can be easily mounted even in a thin imaging device.

<Third Embodiment>
This embodiment is a modification example that is different from the first embodiment only in the configuration of the flexible substrate. Therefore, detailed description of functional blocks and the like is omitted.

<Configuration of flexible substrate>
As shown in FIG. 6, the flexible substrate 10 c according to the present embodiment has a first surface on which an imaging device is mounted and extends in the X-axis direction among the XY axes in a plane orthogonal to the optical axis, and the first surface. A first continuous surface that is bent at a substantially right angle at the end of the first continuous connection surface, and is bent at approximately 180 degrees at the end of the first continuous connection surface, and is connected to the XY axis orthogonal to the optical axis. A second surface extending in the direction of the axis and an end of the second surface are bent at a substantially right angle to the direction of the first surface to form a surface substantially orthogonal to the first surface, which is substantially continuous with the first surface. A third surface that extends in parallel and a fourth surface that extends in the Y-axis direction and is bent at a substantially right angle in a direction away from the first surface at the end of the third surface, and further includes a second surface and a third surface. The surface is folded in the width direction. Furthermore, a fixing portion for fixing to the imaging unit is provided on the third surface.

  In the flexible substrate 10c according to the present embodiment, as shown in FIG. 6, a first continuous surface that is bent at a substantially right angle at the end portion of the first surface and is provided continuously, and an end portion of the first continuous surface is approximately. The second surface is bent 180 degrees and is continuously provided. For this reason, the swing in the X-axis direction of the CCD moving unit 50 accompanying the camera shake correction is received by the folded portion of the flexible substrate 10c, and therefore, it can be absorbed not in the shearing direction of the flexible substrate 10c but in the surface direction.

  In addition, the second surface has a third surface that is bent substantially perpendicular to the direction of the first surface at the end of the second surface, and is provided as a surface that is substantially orthogonal to the first surface and extends substantially parallel to the first surface. ing. Therefore, the swing in the Y-axis direction of the CCD moving unit 50 accompanying the camera shake correction can be absorbed not in the shearing direction of the flexible substrate 10c but in the surface direction.

  In addition, since a fixing portion for fixing the flexible substrate to the imaging unit housing is provided on the third surface sufficiently spaced from the first surface on which the imaging element is mounted, unnecessary external force due to camera shake is provided. It is not given to the flexible substrate.

  Therefore, according to the flexible substrate 10c according to the present embodiment, the flexible substrate 10c is less likely to be twisted due to the swing of the CCD moving unit 50. There is no need to provide it.

  In addition, since the CCD moving unit 50 is configured to absorb the swing in the X-axis direction or the Y-axis direction in the surface direction of the flexible substrate 10c, it is not necessary to use a special soft material. Therefore, as compared with the conventional flexible substrate, there is an advantage that the cost can be reduced while effectively absorbing the stress accompanying the swing of the CCD moving unit 50.

  In addition, since the stress that accompanies the swing of the CCD moving unit 50 can be effectively absorbed, the same effect can be obtained even if the thickness of the signal line handling the width of the flexible substrate is increased. There are advantages. Furthermore, since the second surface and the third surface are folded in the width direction and the fourth surface is substantially parallel to the first surface, the configuration is suitable for a thin imaging device. Yes.

<Fourth Embodiment>
This embodiment is a modification example that is different from the first embodiment only in the configuration of the flexible substrate. Therefore, detailed description of functional blocks and the like is omitted.

<Configuration of flexible substrate>
As shown in FIG. 7, the flexible substrate 10d according to the present embodiment has a straight ribbon shape extending with a certain width in a free state, and is bent to be a first surface, a second surface, a third surface, and a fourth surface. A surface is formed, the first surface is mounted with an image sensor and extends in the X-axis direction among the XY axes in a plane orthogonal to the optical axis, and the second surface is substantially perpendicular to the end of the first surface. Is formed by bending the intermediate portion so as to be a surface substantially orthogonal to the first surface, and extends in the Y-axis direction among the orthogonal XY axes, and the third surface is an end portion of the second surface Is bent substantially perpendicularly to the direction of the first surface to become a surface substantially orthogonal to the first surface and extends substantially parallel to the first surface, and the fourth surface separates the end of the third surface from the first surface. It is formed by bending substantially perpendicular to the direction, and extends in the Y-axis direction. Furthermore, a fixing portion for fixing to the imaging unit is provided on the third surface.

  In the flexible substrate 10d according to the present embodiment, as shown in FIG. 7, the second surface becomes a surface that is substantially orthogonal to the first surface after the end of the first surface is bent at a substantially right angle. It is formed by being bent in a straight line, and extends in the Y-axis direction among the orthogonal XY axes. Therefore, the swing in the X-axis direction of the CCD moving unit 50 accompanying the camera shake correction can be absorbed not in the shearing direction of the flexible substrate 10d but in the surface direction.

  Further, the third surface is configured to be substantially perpendicular to the first surface by bending the end portion of the second surface substantially perpendicularly to the direction of the first surface and to extend substantially parallel to the first surface. . Therefore, the swing in the Y-axis direction of the CCD moving unit 50 accompanying the camera shake correction can be absorbed not in the shearing direction of the flexible substrate 10d but in the surface direction.

  In addition, since a fixing portion for fixing the flexible substrate to the imaging unit housing is provided on the third surface sufficiently spaced from the first surface on which the imaging element is mounted, unnecessary external force due to camera shake is provided. It is not given to the flexible substrate.

  Therefore, according to the flexible substrate 10d according to the present embodiment, the flexible substrate 10d is less likely to be twisted due to the swing of the CCD moving unit 50. There is no need to provide it. Further, since the CCD moving unit 50 is configured to absorb the swing in the X-axis direction or the Y-axis direction in the surface direction of the flexible substrate 10d, it is not necessary to use a special soft material.

  Furthermore, the flexible substrate 10d according to the present embodiment originally realizes a desired shape by bending a straight flexible substrate as described above. Therefore, the flexible substrate 10d according to the present embodiment can be efficiently manufactured from the base material of the manufacturing unit. Therefore, as compared with the conventional flexible substrate, there is an advantage that the cost can be reduced while effectively absorbing the stress accompanying the swing of the CCD moving unit 50.

  In addition, since the stress that accompanies the swing of the CCD moving unit 50 can be effectively absorbed, the same effect can be obtained even if the thickness of the signal line handling the width of the flexible substrate is increased. There are advantages. Furthermore, since the fourth surface is substantially parallel to the first surface, there is an advantage that it can be easily mounted even in a thin imaging device.

  The embodiments of the present invention have been described in detail with reference to the drawings. However, the specific configuration is not limited to the embodiments, and includes designs and the like that do not depart from the gist of the present invention. For example, in the first, second, third, and fourth embodiments, as shown in FIGS. 4 to 7, the second surface extends in the left direction of the Y axis that is continuous with the first surface in the drawing. Although the example formed is shown, as illustrated in FIG. 8, the second surface is formed extending in the right direction of the Y axis that is connected to the first surface in the drawing, and is connected to the second surface. A flexible substrate is configured by a third surface formed extending in the X-axis direction, and a fourth surface bent at a substantially right angle in a direction away from the first surface at the end of the third surface and extending in the Y-axis direction. Also good. Also in this case, similarly to the above-described embodiment, the swing in the X-axis direction or the Y-axis direction of the CCD moving unit accompanying the camera shake correction can be absorbed not in the shearing direction of the flexible substrate but in the surface direction. Moreover, since it was set as the structure absorbed in a surface direction, it is not necessary to use a special soft material. Furthermore, since the total length of the flexible substrate can be shortened, the cost can be reduced. In addition, since the fourth surface is substantially parallel to the first surface, mounting is easy even in a thin imaging device.

  Moreover, in the said embodiment, although the case where the connection part of a 2nd surface and a 3rd surface was substantially right angle was demonstrated, as illustrated in FIG. 9, the connection of a 2nd surface and a 3rd surface is carried out. The part may be formed with a curved surface. Also in this case, similarly to the above-described embodiment, the swing in the X-axis direction or the Y-axis direction of the CCD moving unit accompanying the camera shake correction can be absorbed not in the shearing direction of the flexible substrate but in the surface direction. Moreover, since it was set as the structure absorbed in a surface direction, it is not necessary to use a special soft material. Furthermore, since the total length of the flexible substrate can be shortened, the cost can be reduced, and in addition, the influence of noise can be reduced.

  Further, the method of changing the direction of the substrate by bending shown in FIG. 7 may be applied to FIGS. 5 and 6, thereby increasing the degree of freedom in design.

  In the third embodiment, an example is shown in which the second surface and the third surface are folded in the width direction. However, the second surface is not simply folded, but is folded many times to be folded into a bellows. May be. Also in this case, similarly to the third embodiment, the swing in the X-axis direction or the Y-direction of the CCD moving part accompanying the camera shake correction can be absorbed not in the shearing direction of the flexible substrate 10c but in the plane direction, and By folding the bellows, a flexible substrate suitable for a thin imaging device can be configured.

It is a general | schematic block diagram of the imaging unit which concerns on the 1st Embodiment of this invention. It is sectional drawing of the imaging unit which concerns on the 1st Embodiment of this invention. 1 is a functional block diagram of a digital camera equipped with an imaging unit according to a first embodiment of the present invention. It is a lineblock diagram of the flexible substrate concerning a 1st embodiment of the present invention. It is a block diagram of the flexible substrate which concerns on the 2nd Embodiment of this invention. It is a block diagram of the flexible substrate which concerns on the 3rd Embodiment of this invention. It is a block diagram of the flexible substrate which concerns on the 4th Embodiment of this invention. It is a block diagram of the flexible substrate which concerns on the modification of this invention. It is a block diagram of the flexible substrate which concerns on the modification of this invention. It is a block diagram of the flexible substrate which concerns on a prior art example.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Imaging unit, 2 ... Imaging unit housing, 3 ... Shooting lens, 5 ... CCD, 7 ... Overall control part, 9 ... Memory card, 10, 10a, 10b, 10c, 10d ... flexible substrate, 21 ... A / D converter, 22 ... image processor, 23 ... image memory, 31 ... lens barrel, 32 ... lens group, 33. ..Aperture, 40 ... vibration sensor, 50 ... CCD moving unit, 58 ... CCD position sensor, 61 ... shutter button, 62 ... operation button, 63 ... LCD, 70 .. CPU, 71... AF control unit, 72... AE control unit, 73... Shake correction control unit, 75. ... Aperture drive unit

Claims (7)

A flexible substrate on which an image sensor arranged at the imaging position of the camera is mounted,
The first surface on which the image sensor is mounted and extends in the X-axis direction among the XY axes in a plane orthogonal to the optical axis;
A second surface that is bent at an end of the first surface, is continuously provided as a surface substantially orthogonal to the first surface, extends in the direction of the Y axis, and absorbs oscillation in the X axis direction;
Folded at the end of the second surface, provided as a surface that is substantially orthogonal to the first surface, and extends substantially parallel to the first surface on the first surface side, and swings in the Y-axis direction. A third surface that absorbs
A fourth surface that is bent at a substantially right angle in a direction away from the first surface at an end of the third surface and extends in the Y-axis direction;
Equipped with a,
Further comprising a first series設面articulating bent substantially at a right angle at the end portion of the first surface, the first communication設面includes a feature that you connected the second surface bent about 180 degrees at the end Flexible substrate. The flexible substrate according to claim 1 , wherein the second surface and the third surface are configured to be folded back in the width direction. A flexible substrate on which an image sensor arranged at the imaging position of the camera is mounted,
The first surface on which the image sensor is mounted and extends in the X-axis direction among the XY axes in a plane orthogonal to the optical axis;
A second surface that is bent at an end of the first surface, is continuously provided as a surface substantially orthogonal to the first surface, extends in the direction of the Y axis, and absorbs oscillation in the X axis direction;
Folded at the end of the second surface, provided as a surface that is substantially orthogonal to the first surface, and extends substantially parallel to the first surface on the first surface side, and swings in the Y-axis direction. A third surface that absorbs
A fourth surface that is bent at a substantially right angle in a direction away from the first surface at an end of the third surface and extends in the Y-axis direction;
With
It is a straight ribbon that extends with a certain width in a free state,
The second surface is formed by bending an intermediate portion between the first surface and the second surface so as to be a surface substantially orthogonal to the first surface,
The flexible substrate, wherein the third surface is formed by bending an end surface continuous with the fourth surface so as to be a surface substantially orthogonal to the second surface . Wherein the third surface, the flexible substrate according to any one of claims 1 to 3, characterized in that fixing portion fixed to the imaging unit is provided. The flexible substrate according to any one of claims 1 to 3 , wherein a connecting portion between the second surface and the third surface is formed by a curved surface. A camera shake correction unit equipped with a flexible substrate on which an image sensor arranged at the imaging position of the camera is mounted,
Of the XY axes in a plane orthogonal to the optical axis, the image sensor is mounted, a first surface extending in the X-axis direction, and a surface that is bent at an end of the first surface and substantially orthogonal to the first surface And a second surface that extends in the direction of the Y-axis and absorbs oscillation in the X-axis direction, and is bent at an end of the second surface to become a surface that is substantially orthogonal to the first surface. A third surface that is provided in a row and extends substantially parallel to the first surface on the first surface side to absorb the swing in the Y-axis direction, and a direction away from the first surface at the end of the third surface And a fourth surface that is bent substantially at right angles to and extends in the Y-axis direction,
A first housing to which the flexible substrate is fixed;
A second housing that is fixed to the image sensor and is movable inside the first housing and moves in the XY axis direction;
Equipped with a,
A first connecting surface is further bent and connected at an end portion of the first surface at a substantially right angle, and the first connecting surface is bent at about 180 degrees at the end portion and connected to the second surface. Image stabilization unit. An image sensor disposed at the imaging position of the subject;
Of the XY axes in a plane orthogonal to the optical axis, the image sensor is mounted, a first surface extending in the X-axis direction, and a surface that is bent at an end of the first surface and substantially orthogonal to the first surface And a second surface that extends in the direction of the Y-axis and absorbs oscillation in the X-axis direction, and is bent at an end of the second surface to become a surface that is substantially orthogonal to the first surface. A third surface that is provided in a row and extends substantially parallel to the first surface on the first surface side to absorb the swing in the Y-axis direction, and a direction away from the first surface at the end of the third surface And a fourth surface that is bent substantially at right angles to and extends in the Y-axis direction,
Recording means for acquiring and recording a captured image captured by the image sensor through the flexible substrate;
Camera shake detection means for detecting camera shake;
A camera shake correction unit configured to drive the image sensor in accordance with the camera shake detected by the camera shake detection unit and correct a camera shake at the time of imaging by the image sensor;
Equipped with a,
Further comprising a first series設面articulating bent substantially at a right angle at the end portion of the first surface, the first communication設面includes a feature that you connected the second surface bent about 180 degrees at the end An imaging device.

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