Imaging apparatus

Abstract

To provide an imaging apparatus capable of suppressing deterioration of the signal quality of the control signal transmitted to the angular rate sensor for image stabilization.SOLUTION: An imaging apparatus has an angular rate sensor for image stabilization and a flexible printed board. The flexible printed board has the angular rate sensor and a plurality of wires for transmitting digital control signals from a control circuit to the angular rate sensor. The flexible printed board has a filter circuit to suppress certain frequencies of control signals.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The technology of the present disclosure relates to an imaging device. [Background technology]

[0002] Patent Document 1 describes a lens barrel having a fixed member having a flat surface parallel to the optical axis of a photographing optical system, a flexible printed circuit board fixed to the flat surface, and an angular velocity sensor for detecting angular velocity with respect to a predetermined detection axis. The angular velocity sensor is fixed to the flat surface on the opposite side to the surface fixed to the flat surface of the flexible printed circuit board, so that the detection axis is approximately perpendicular to the flat surface. As described in paragraph

[0030] of Patent Document 1, an amplifier circuit for amplifying an analog output signal from the angular velocity sensor and a filter circuit for acting on the analog output signal from the angular velocity sensor are mounted on the flexible printed circuit board. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2013-178565 A Summary of the Invention

[0004] An embodiment of the technique of the present disclosure provides an imaging device capable of suppressing deterioration in the signal quality of a control signal transmitted to an angular velocity sensor for blur correction. [Means for solving the problem]

[0005] The imaging device disclosed herein includes an angular velocity sensor for image blur correction, and a flexible printed circuit board having a plurality of wirings for transmitting the angular velocity sensor and a digital control signal for controlling the operation of the angular velocity sensor, and the flexible printed circuit board is provided with a filter circuit for suppressing specific frequencies of the control signal.

[0006] It is preferable that the flexible printed circuit board has a first wiring section in which a pattern of multiple wiring lines is formed side by side, one end of the first wiring section being provided with a connection section connected to a control circuit that generates a control signal, and the other end being provided with a circuit section in which electronic components including an angular velocity sensor and a filter circuit are mounted.

[0007] It is preferable that the circuit section includes a first circuit section and a second circuit section, and that a second wiring section is provided between the first circuit section and the second circuit section.

[0008] The second wiring portion is preferably flexible.

[0009] When the plane on which the first circuit portion is arranged is defined as the first plane, and the plane on which the second circuit portion is arranged is defined as the second plane, it is preferable that by bending the second wiring portion, the first circuit portion and the second circuit portion are arranged in a relationship in which the first plane and the second plane intersect with each other.

[0010] The first plane and the second plane are preferably perpendicular to each other.

[0011] It is preferable that the circuit section further includes a third circuit section, and a third wiring section is provided between the second circuit section and the third circuit section.

[0012] The third wiring portion is preferably flexible.

[0013] If the plane on which the first circuit portion is arranged is defined as the first plane, the plane on which the second circuit portion is arranged is defined as the second plane, and the plane on which the third circuit portion is arranged is defined as the third plane, it is preferable that by bending the second wiring portion and the third wiring portion, the first circuit portion, the second circuit portion, and the third circuit portion are arranged in a relationship in which the first plane, the second plane, and the third plane intersect with each other.

[0014] It is preferable that the first plane, the second plane and the third plane are perpendicular to each other.

[0015] One angular velocity sensor is provided for each of the three axes, pitch, yaw, and roll, and it is preferable that at least the angular velocity sensor for the pitch axis and the angular velocity sensor for the yaw axis are mounted on the second circuit section or the third circuit section.

[0016] The angular velocity sensor for the roll axis is preferably mounted on the first circuit portion.

[0017] The filter circuit is preferably implemented in the first circuit section.

[0018] The first wiring section preferably has a pattern formed on only one side and has a structure that is more flexible than the circuit section.

[0019] The first wiring portion preferably has a pattern formed on only one side and has a structure without a protective film.

[0020] The circuit portion preferably has a structure in which patterns are formed on both sides.

[0021] It is preferable that electronic components are mounted on only one side of the circuit section.

[0022] It is preferable that a vibration reducing member is attached to the surface of the circuit portion opposite to the surface on which the electronic components are mounted.

[0023] The vibration reducing member is preferably thicker than the flexible printed circuit board.

[0024] The filter circuit is preferably provided on a specific wire among the multiple wires, the specific wire having a communication frequency of the control signal equal to or lower than a set frequency.

[0025] The specific wiring is preferably a chip select communication line that transmits a chip select signal for selecting one of a plurality of circuits to be controlled in serial communication as a control signal. [Brief description of the drawings]

[0026] [Figure 1] FIG. 1 is a diagram showing an imaging device. [Diagram 2] FIG. 2 is a perspective view of a flexible printed circuit board and a control board. [Diagram 3] FIG. 2 is a plan view of a flexible printed circuit board. [Figure 4] FIG. 2 is a diagram showing a circuit portion and a cushion. [Diagram 5] FIG. 4 is a simplified circuit diagram of a flexible printed circuit board and a control board. [Figure 6] FIG. 11 is a circuit diagram of another example. [Figure 7] FIG. 13 is a circuit diagram of yet another example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0027] As an example, as shown in Fig. 1, an imaging device 10 is, for example, a mirrorless single-lens digital camera, and includes a device body 11. A lens mount 12 is provided on the front of the device body 11. The lens mount 12 has a circular imaging opening 13. An interchangeable imaging lens (not shown) is removably attached to the lens mount 12. In addition, a grip section 14 is provided on the left side of the device body 11, on which a user's right hand is placed when taking a picture, etc. Note that the imaging device 10 may be one in which the imaging lens is non-removably installed.

[0028] An imaging element (not shown) is disposed within the imaging opening 13. The imaging element is, for example, a CMOS (Complementary Metal Oxide Semiconductor) image sensor or a CCD (Charge Coupled Device) image sensor. The imaging element has a rectangular imaging surface that captures an image of a subject. Two orthogonal sides of the imaging surface are parallel to the Y-axis and Z-axis, respectively. The center of the imaging surface coincides with the optical axis OA of the imaging lens.

[0029] Here, when the bottom surface of the imaging device 10 is placed on a horizontal surface, the Y axis is parallel to the horizontal direction, and the Z axis is parallel to the vertical direction. The Y axis direction is the width direction of the device body 11, and the Z axis direction is the height direction of the device body 11. Note that the term "orthogonal" related to angles includes not only the meaning of perfect orthogonal, but also the meaning of nearly orthogonal including an error allowable in design and manufacturing, for example, an error of about ±10% of the design value. The term "parallel" also includes not only the meaning of perfect parallelism, but also the meaning of nearly parallelism including an error allowable in design and manufacturing, for example, an error of about ±10% of the design value. Furthermore, the term "match" also includes not only the meaning of perfect match, but also the meaning of nearly match including an error allowable in design and manufacturing, for example, an error of about ±10% of the design value.

[0030] The imaging surface receives subject light. As is well known, pixels that photoelectrically convert the received subject light to output an electrical signal are arranged two-dimensionally along the Y-axis and Z-axis on the imaging surface. The entire imaging surface is exposed to the outside through an imaging aperture 13.

[0031] The imaging element is provided with a blur correction mechanism (not shown) for correcting blur of a subject image caused by vibrations applied to the imaging device 10. The blur correction mechanism has an actuator such as a voice coil motor that moves a movable part to which the imaging element is attached along the YZ plane with respect to a fixed part fixed to the device body 11.

[0032] Here, "blur" refers to a phenomenon that occurs when the optical axis OA fluctuates relative to the subject image due to vibration. "Fluctuation of the optical axis OA" means, for example, that the optical axis OA tilts due to blur with respect to a reference axis (for example, the optical axis OA before the blur occurs). "Blur correction" includes the meaning of reducing blur in addition to eliminating blur.

[0033] The device body 11 has built-in flexible printed circuit board (FPC: Flexible Printed Circuit) 15 and control board 16. The flexible printed circuit board 15 is disposed inside the grip part 14. The control board 16 is disposed in a position facing the back surface of the device body 11, with its front and back surfaces parallel to the YZ plane.

[0034] As an example, as shown in FIG. 2, a control circuit 20 is formed on the control board 16. The control circuit 20 controls the operation of an angular velocity sensor 30 (see FIG. 3) for blur correction mounted on the flexible printed circuit board 15. The control circuit 20 issues a digital control signal to the angular velocity sensor 30 to control its operation. The control circuit 20 also receives an output signal from the angular velocity sensor 30. The control circuit 20 issues a drive signal to a voice coil motor of the blur correction mechanism based on the output signal from the angular velocity sensor 30. The blur correction mechanism moves the image sensor by an amount that corrects the blur in a direction that corrects the blur according to the drive signal. The control circuit 20 controls not only the angular velocity sensor 30 and the blur correction mechanism, but also the operation of each part of the imaging device 10, such as the image sensor and the rear display.

[0035] As an example, as shown in FIG. 3, the flexible printed circuit board 15 includes a first wiring section 251 having flexibility. A pattern of a plurality of wirings 26 is formed in the first wiring section 251 in a line. The distance between the plurality of wirings 26 is, for example, 100 μm to 500 μm, and the width of the first wiring section 251 is, for example, 0.5 cm to 2 cm. The first wiring section 251 has a narrow strip shape in which the direction in which the wirings 26 extend is the longitudinal direction. That is, the first wiring section 251 is a flexible flat cable (FFC). The wiring 26 transmits a control signal from the control circuit 20 to the angular velocity sensor 30, and transmits an output signal from the angular velocity sensor 30 to the control circuit 20. Here, the control signal is a signal for Serial Peripheral Interface (hereinafter, referred to as SPI (Serial Peripheral Interface)) communication, and the wiring 26 is a wiring for SPI communication. The SPI communication is an example of "serial communication" according to the technology of the present disclosure.

[0036] A connector 27 that connects to the control board 16 (control circuit 20) is provided at one end of the first wiring portion 251. The connector 27 is an example of a "connection portion" according to the technology of the present disclosure. A rigid circuit portion 28 is provided at the other end of the first wiring portion 251.

[0037] The circuit section 28 is composed of a first circuit section 281, a second circuit section 282, and a third circuit section 283. The first circuit section 281 and the second circuit section 282 are connected by a flexible short second wiring section 252. The second circuit section 282 and the third circuit section 283 are connected by a flexible short third wiring section 253. The first circuit section 281, the second circuit section 282, and the third circuit section 283 are arranged in this order from the first wiring section 251 side. Note that the second wiring section 252, the third wiring section 253, the first circuit section 281, the second circuit section 282, and the third circuit section 283 are also actually provided with wiring 26, but are omitted from the illustration to avoid complication.

[0038] The circuit unit 28 is equipped with a plurality of electronic components including an angular velocity sensor 30, a filter circuit 31 for suppressing a specific frequency of the control signal, for example, a frequency of 32 MHz or more, and a driver 32 for the angular velocity sensor 30. More specifically, the first circuit unit 281 is equipped with electronic components including an angular velocity sensor 30R for the roll axis, a filter circuit 31, and a driver 32R for the angular velocity sensor 30R. The second circuit unit 282 is equipped with electronic components including an angular velocity sensor 30Y for the yaw axis, and a driver 32Y for the angular velocity sensor 30Y. The third circuit unit 283 is equipped with electronic components including an angular velocity sensor 30P for the pitch axis, and a driver 32P for the angular velocity sensor 30P. Conversely to this example, electronic components including the angular velocity sensor 30P for the pitch axis and the driver 32P for the angular velocity sensor 30P may be mounted on the second circuit unit 282, and electronic components including the angular velocity sensor 30Y for the yaw axis and the driver 32Y for the angular velocity sensor 30Y may be mounted on the third circuit unit 283. In this way, one angular velocity sensor 30 is provided for each of the three axes of pitch, yaw, and roll, and at least the angular velocity sensor 30P for the pitch axis and the angular velocity sensor 30Y for the yaw axis are mounted on the second circuit unit 282 or the third circuit unit 283.

[0039] In this example, the roll axis is the X axis, the pitch axis is the Y axis, and the yaw axis is the Z axis. The angular velocity sensor 30R for the roll axis detects rotation around the X axis, which is the roll axis, i.e., lateral vibration. The angular velocity sensor 30P for the pitch axis detects rotation around the Y axis, which is the pitch axis, i.e., vertical vibration. The angular velocity sensor 30Y for the yaw axis detects rotation around the Z axis, which is the yaw axis, i.e., yaw vibration. The X axis is perpendicular to the Y axis and the Z axis. When the bottom surface of the device body 11 is placed on a horizontal surface, the X axis direction is the horizontal direction, just like the Y axis direction. The X axis direction is the depth direction of the device body 11.

[0040] The first circuit portion 281, the second circuit portion 282, and the third circuit portion 283 are all substantially rectangular and flat. The size of the first circuit portion 281 is slightly larger than the sizes of the second circuit portion 282 and the third circuit portion 283 because the filter circuit 31 is implemented therein. The second circuit portion 282 and the third circuit portion 283 are substantially the same size.

[0041] The first wiring portion 251 has a pattern of the wiring 26 formed only on one side, has no protective film (also called a coverlay), and has a structure that is more flexible than the circuit portion 28. In contrast, the circuit portion 28 has a structure in which the pattern of the wiring 26 is formed on both sides.

[0042] The first wiring portion 251 is appropriately folded when the flexible printed circuit board 15 is disposed in the grip portion 14 (see FIGS. 1 and 2). The second wiring portion 252 and the third wiring portion 253 are also appropriately folded in the same manner. By folding the second wiring portion 252 and the third wiring portion 253 in this manner, the front and back surfaces (the mounting surface 40 and the attachment surface 41 shown in FIG. 4) of the first circuit portion 281 on which the angular velocity sensor 30R for the roll axis is mounted are parallel to the YZ plane. The front and back surfaces of the second circuit portion 282 on which the angular velocity sensor 30Y for the yaw axis is mounted are parallel to the XZ plane. Furthermore, the front and back surfaces of the third circuit portion 283 on which the angular velocity sensor 30P for the pitch axis is mounted are parallel to the XY plane. That is, the first circuit portion 281, the second circuit portion 282, and the third circuit portion 283 are arranged such that the planes on which they are arranged (the YZ plane, the XZ plane, and the XY plane) intersect with each other. More specifically, the planes on which the first circuit portion 281, the second circuit portion 282, and the third circuit portion 283 are arranged are orthogonal to each other. Here, the YZ plane is an example of a "first plane" according to the technology of the present disclosure, the XZ plane is an example of a "second plane" according to the technology of the present disclosure, and the XY plane is an example of a "third plane" according to the technology of the present disclosure.

[0043] As an example, as shown in FIG. 4, the circuit section 28 (any of the first circuit section 281, the second circuit section 282, and the third circuit section 283) has electronic components such as the angular velocity sensor 30 (any of the angular velocity sensors 30P, 30Y, and 30R) mounted only on one side shown as a mounting surface 40. A cushion 42 is attached to the surface of the circuit section 28 opposite to the mounting surface 40, shown as an attachment surface 41, in order to prevent unnecessary vibrations from being applied to the angular velocity sensor 30. The cushion 42 is a foam block having a size that covers the entire attachment surface 41. The thickness DC of the cushion 42 is thicker than the thickness DF of the circuit section 28 and thus the flexible printed circuit board 15. The cushion 42 is an example of a "vibration reducing member" according to the technology of the present disclosure. Note that the "unnecessary vibration" refers to vibrations that occur inside the imaging device 10, such as vibrations accompanying the operation of a mechanical shutter mechanism, that are different from vibrations caused by the user's hand movement.

[0044] 5, the filter circuit 31 is provided only on one specific wiring 26S of the multiple wirings 26. The specific wiring 26S is a wiring 26 in which the communication frequency of the control signal is equal to or lower than a set frequency. The set frequency is, for example, 1 MHz. More specifically, the specific wiring 26S is a chip select communication line that transmits a chip select signal as a control signal. The chip select signal is a signal for selecting one of multiple circuits (e.g., integrated circuits) to be controlled, such as the driver 32 mounted on the circuit unit 28.

[0045] The filter circuit 31 is an RC circuit, i.e., a low-pass filter circuit, that is, configured with a resistor 50 and a capacitor 51. The filter circuit 31 passes low-frequency components, which are signal components of the chip select signal, and blocks high-frequency noise carried on the chip select signal. A value according to the required performance is set for the time constant τ=RC, which determines the cutoff frequency of high-frequency noise (for example, a frequency of 32 MHz or higher). Reference numeral 52 denotes a damping resistor mounted in the control circuit 20 for reducing noise and suppressing overshoot and undershoot. Also, in FIG. 5, the driver 32 of the angular velocity sensor 30 is not shown.

[0046] The flexible printed circuit board 15 is connected to the control circuit 20 of the control board 16 via the connector 27. The control circuit 20 generates a control signal for the angular velocity sensor 30, such as a chip select signal. The control signal is transmitted to the angular velocity sensor 30 mounted on the circuit unit 28 through the wiring 26 of the connector 27, the first wiring portion 251, the second wiring portion 252, and the third wiring portion 253. The angular velocity sensor 30 operates according to the control signal.

[0047] 3 and other drawings, the flexible printed circuit board 15 is provided with a filter circuit 31 for suppressing a specific frequency of a digital control signal that controls the operation of the angular velocity sensor 30 and is transmitted to the angular velocity sensor 30. This makes it possible to suppress deterioration of the signal quality of the control signal. As a result, it is possible to reduce the frequency of malfunction of the angular velocity sensor 30.

[0048] The first wiring section 251 of this example is relatively long in order to connect the control board 16 arranged near the rear surface of the device body 11 to the circuit section 28 arranged in the grip section 14 of the device body 11, where the influence of unnecessary vibrations on the angular velocity sensor 30 is considered to be relatively small. The first wiring section 251 is also made thin in order to save space and not to transmit unnecessary vibrations from the control board 16 to the angular velocity sensor 30, and accordingly the spacing between the patterns of the multiple wirings 26 is also very narrow. For this reason, the influence of crosstalk is more prominent in the first wiring section 251 of this example, and there is a great concern of deterioration in the signal quality of the control signal. Therefore, the effect obtained by providing the filter circuit 31 is very high.

[0049] 3, flexible printed circuit board 15 includes first wiring section 251 in which a pattern of multiple wirings 26 is formed side by side. One end of first wiring section 251 is provided with connector 27 that connects to control circuit 20 that generates a control signal, and the other end is provided with circuit section 28 on which electronic components including angular velocity sensor 30 and filter circuit 31 are mounted. By providing circuit section 28 at the other end of first wiring section 251 in this manner, it is possible to reduce the risk of unnecessary vibration being applied to angular velocity sensor 30 mounted on circuit section 28.

[0050] 3, circuit portion 28 includes first circuit portion 281, second circuit portion 282, and third circuit portion 283. Second wiring portion 252 is provided between first circuit portion 281 and second circuit portion 282, and third wiring portion 253 is provided between second circuit portion 282 and third circuit portion 283. By dividing circuit portion 28 into first circuit portion 281, second circuit portion 282, and third circuit portion 283 in this way and connecting them with second wiring portion 252 and third wiring portion 253, electronic components such as angular velocity sensor 30 and filter circuit 31 can be arranged in a dispersed manner.

[0051] As shown in FIG. 3, the second wiring portion 252 and the third wiring portion 253 are flexible. As shown in FIG. 1 and FIG. 2, the second wiring portion 252 and the third wiring portion 253 are bent, so that the first circuit portion 281, the second circuit portion 282, and the third circuit portion 283 are arranged in a relationship in which the planes on which they are arranged (the YZ plane, the XZ plane, and the XY plane) intersect with each other. More specifically, the planes on which the first circuit portion 281, the second circuit portion 282, and the third circuit portion 283 are arranged are orthogonal to each other. For this reason, it is possible to accurately detect rotations around the respective axes of the Y axis, which is the pitch axis, the Z axis, which is the yaw axis, and the X axis, which is the roll axis, which are orthogonal to each other.

[0052] 3, the angular velocity sensor 30 is provided with angular velocity sensors 30P, 30Y, and 30R, one for each of the three axes, pitch, yaw, and roll. At least the angular velocity sensor 30P for the pitch axis and the angular velocity sensor 30Y for the yaw axis are mounted on the second circuit portion 282 or the third circuit portion 283. On the other hand, the angular velocity sensor 30R for the roll axis is mounted on the first circuit portion 281.

[0053] The pitch axis angular velocity sensor 30P and the yaw axis angular velocity sensor 30Y are more susceptible to unwanted vibrations than the roll axis angular velocity sensor 30R. For this reason, the pitch axis angular velocity sensor 30P and the yaw axis angular velocity sensor 30Y are mounted on the second circuit portion 282 or the third circuit portion 283, which are less susceptible to unwanted vibrations than the first circuit portion 281 connected to the first wiring portion 251, which is more susceptible to unwanted vibrations.

[0054] 3, the filter circuit 31 is implemented in the first circuit portion 281. Therefore, the size of the second circuit portion 282 and the third circuit portion 283 in which the filter circuit 31 is not implemented can be made smaller than the first circuit portion 281.

[0055] The first wiring portion 251 has a structure in which the pattern of the wiring 26 is formed only on one side, and has a higher flexibility than the circuit portion 28. The first wiring portion 251 also has a structure without a protective film. Therefore, it is possible to impart higher flexibility to the first wiring portion 251. Therefore, it is possible to further reduce the risk of unnecessary vibration being applied to the angular velocity sensor 30 mounted on the circuit portion 28. On the other hand, the circuit portion 28 has a structure in which the pattern of the wiring 26 is formed on both sides. Therefore, it is possible to reduce the size of the circuit portion 28 compared to a structure in which the pattern of the wiring 26 is formed only on one side. Note that, as long as the flexibility of the first wiring portion 251 is sufficiently ensured, a protective film may be provided.

[0056] 4, electronic components are mounted only on one side (mounting surface 40) of circuit section 28. A cushion 42 is attached to the surface (attachment surface 41) of circuit section 28 opposite mounting surface 40. Since no electronic components are mounted on attachment surface 41, cushion 42 can be in close contact with attachment surface 41. This can enhance the vibration reduction effect of cushion 42, and also enhance the attachment strength of cushion 42.

[0057] 4, the thickness DC of the cushion 42 is greater than the thickness DF of the flexible printed circuit board 15 (circuit section 28). Therefore, the vibration reduction effect of the cushion 42 can be further improved.

[0058] 5, the filter circuit 31 is provided on a specific wiring 26S, of the multiple wirings 26, in which the communication frequency of the control signal is equal to or lower than a set frequency. Since the filter circuit 31 is provided only on the specific wiring 26S in which deterioration of signal quality is of particular concern, it is possible to avoid unnecessary increase in size of the circuit unit 28.

[0059] The specific wiring 26S is a chip select communication line that transmits a chip select signal for selecting one of a plurality of circuits to be controlled in SPI communication. The chip select communication line has a particularly low communication frequency of the chip select signal, and is highly susceptible to malfunction, so that the effect of providing the filter circuit 31 is very high.

[0060] 5 shows an example in which one filter circuit 31 is provided for the three angular velocity sensors 30, 30P, 30Y, and 30R, but the present invention is not limited to this. As an example, as shown in FIG 6, a filter circuit 31 may be provided for each of the angular velocity sensors 30P, 30Y, and 30R. In this case, one filter circuit 31 is mounted on each of the first circuit section 281, the second circuit section 282, and the third circuit section 283.

[0061] 7, one filter circuit 31 may be provided for the angular velocity sensors 30P, 30Y, and 30R, and a filter circuit 31 may be provided for each of the angular velocity sensors 30P, 30Y, and 30R. In this case, the filter circuit 31 common to the three angular velocity sensors 30 is mounted on the first circuit section 281. The other three filter circuits 31 are mounted on the first circuit section 281, the second circuit section 282, and the third circuit section 283, one each. In the examples shown in FIGS. 6 and 7, all of the filter circuits 31 may be collectively mounted on the first circuit section 281.

[0062] The specific wiring 26S is not limited to the illustrated chip select communication line. The specific wiring 26S may be two or more. Furthermore, the filter circuit 31 may be provided on all of the multiple wirings 26.

[0063] Although a low-pass filter circuit has been exemplified as the filter circuit 31, the present invention is not limited thereto. A band-pass filter circuit or a high-pass filter circuit may also be used. In addition, a chip select signal for selecting one of a plurality of circuits to be controlled in serial communication has been exemplified as the control signal for controlling the operation of the angular velocity sensor 30, but the present invention is not limited thereto. For example, a serial clock signal (SCLK: Serial Clock) in serial communication, a main output / subnode input signal (MOSI: Master-Out Slave-In), or a main input / subnode output signal (MISO: Master-In Slave-Out) may also be used.

[0064] The position of the flexible printed circuit board 15, and in turn the circuit unit 28 on which the angular velocity sensor 30 is mounted, is not limited to within the illustrated grip unit 14. For example, the circuit unit 28 may be disposed on the right side of the device body 11, opposite the grip unit 14. In short, the circuit unit 28 may be disposed in any position where the influence of unnecessary vibrations on the angular velocity sensor 30 is considered to be relatively small.

[0065] Although the blur correction mechanism that corrects blur of the subject image by moving the image sensor along the YZ plane has been exemplified, the present invention is not limited to this. Instead of or in addition to the blur correction mechanism that corrects blur of the subject image by moving the image sensor along the YZ plane, a blur correction mechanism that corrects blur of the subject image by moving a part of the imaging lens may be used.

[0066] Alternatively, an electronic blur correction function may be used. The electronic blur correction function corrects blur in the subject image, for example, by the following process. First, an area that is slightly larger than the area that will ultimately be output as an image (hereinafter, image output area) is captured by the image sensor. Then, an image that corresponds to the image output area is cut out from the image thus obtained, and at that time, the cut-out position of the image output area is changed according to the blur.

[0067] The imaging device according to the technique of the present disclosure may be a compact digital camera, a smartphone, or a tablet terminal.

[0068] From the above description, the technology described in the following supplementary paragraphs can be understood.

[0069] [Additional note 1] An angular velocity sensor for blur correction; a flexible printed circuit board having a plurality of wirings for transmitting the angular velocity sensor and a digital control signal for controlling the operation of the angular velocity sensor; Equipped with The flexible printed circuit board is provided with a filter circuit for suppressing a specific frequency of the control signal. Imaging device. [Additional note 2] the flexible printed circuit board includes a first wiring section in which the patterns of the plurality of wirings are formed side by side, The imaging device described in appended claim 1, wherein one end of the first wiring portion is provided with a connection portion for connection to a control circuit that generates the control signal, and the other end is provided with a circuit portion on which electronic components including the angular velocity sensor and the filter circuit are mounted. [Additional note 3] the circuit portion includes a first circuit portion and a second circuit portion, 3. The imaging device according to claim 2, further comprising a second wiring section between the first circuit section and the second circuit section. [Additional note 4] The imaging device according to claim 3, wherein the second wiring portion is flexible. [Additional note 5] The imaging device described in Appendix 4, wherein when a plane on which the first circuit unit is arranged is defined as a first plane and a plane on which the second circuit unit is arranged is defined as a second plane, the second wiring unit is bent so that the first circuit unit and the second circuit unit are arranged in a relationship in which the first plane and the second plane intersect with each other. [Additional note 6] The imaging device according to claim 5, wherein the first plane and the second plane are perpendicular to each other. [Additional note 7] the circuit section further includes a third circuit section; The imaging device according to any one of claims 3 to 6, further comprising a third wiring section between the second circuit section and the third circuit section. [Additional note 8] The imaging device according to claim 7, wherein the third wiring portion is flexible. [Additional note 9] The imaging device described in Appendix 8, in which, when a plane on which the first circuit unit is arranged is defined as a first plane, a plane on which the second circuit unit is arranged is defined as a second plane, and a plane on which the third circuit unit is arranged is defined as a third plane, by bending the second wiring unit and the third wiring unit, the first circuit unit, the second circuit unit, and the third circuit unit are arranged in a relationship in which the first plane, the second plane, and the third plane intersect with each other. [Additional Note 10] The imaging device according to claim 9, wherein the first plane, the second plane, and the third plane are perpendicular to each other. [Additional Note 11] The angular velocity sensor is provided for each of the three axes: pitch, yaw, and roll. The imaging device according to any one of claims 7 to 10, wherein at least the angular velocity sensor for the pitch axis and the angular velocity sensor for the yaw axis are implemented in the second circuit unit or the third circuit unit. [Additional Note 12] The imaging device according to claim 11, wherein the angular velocity sensor for the roll axis is mounted on the first circuit portion. [Additional Note 13] The imaging device according to any one of claims 3 to 12, wherein the filter circuit is implemented in the first circuit section. [Additional Note 14] The imaging device according to any one of claims 2 to 13, wherein the first wiring portion has the pattern formed on only one side thereof and has a structure that is more flexible than the circuit portion. [Additional Note 15] The imaging device according to any one of claims 2 to 13, wherein the first wiring portion has the pattern formed only on one side thereof and has a structure without a protective film. [Additional Note 16] The imaging device according to any one of supplementary items 2 to 15, wherein the circuit portion has a structure in which the pattern is formed on both sides. [Additional Note 17] The imaging device according to any one of claims 2 to 16, wherein the electronic components are mounted on only one side of the circuit section. [Additional Note 18] The imaging device according to claim 17, wherein a vibration reducing member is attached to a surface of the circuit portion opposite to the surface on which the electronic components are mounted. [Additional Note 19] 19. The imaging device according to claim 18, wherein the vibration reducing member has a thickness greater than a thickness of the flexible printed circuit board. [Additional Note 20] The imaging device according to any one of supplementary items 1 to 19, wherein the filter circuit is provided on a specific wiring among the plurality of wirings, the specific wiring having a communication frequency of the control signal equal to or lower than a set frequency. [Additional Note 21] The imaging device described in appended claim 20, wherein the specific wiring is a chip select communication line that transmits a chip select signal for selecting one of a plurality of circuits to be controlled in serial communication as the control signal.

[0070] The technology of the present disclosure can be appropriately combined with the above-mentioned various embodiments and / or various modified examples. In addition, it is needless to say that the technology is not limited to the above-mentioned embodiments, and various configurations can be adopted without departing from the gist of the technology.

[0071] The above description and illustrations are detailed descriptions of the parts related to the technology of the present disclosure, and are merely an example of the technology of the present disclosure. For example, the above description of the configuration, function, action, and effect is an example of the configuration, function, action, and effect of the parts related to the technology of the present disclosure. Therefore, it goes without saying that unnecessary parts may be deleted, new elements may be added, or replaced with respect to the description and illustrations shown above, within the scope of the gist of the technology of the present disclosure. In addition, in order to avoid confusion and to facilitate understanding of the parts related to the technology of the present disclosure, the description and illustrations shown above omit explanations of technical common sense that do not require explanation in order to enable the implementation of the technology of the present disclosure.

[0072] In this specification, "A and / or B" is synonymous with "at least one of A and B." In other words, "A and / or B" means that it may be only A, only B, or a combination of A and B. In addition, in this specification, the same idea as "A and / or B" is also applied when three or more things are expressed by connecting them with "and / or."

[0073] All publications, patent applications, and standards mentioned in this specification are herein incorporated by reference to the same extent as if each individual publication, patent application, and standard was specifically and individually indicated to be incorporated by reference. [Explanation of symbols]

[0074] 10. Imaging device 11. Device body 12 Lens mount 13 Imaging aperture 14 Grip section 15 Flexible Printed Circuit Board 16 Control Board 20 Control circuit 26 Wiring 26S Specific Wiring 27 Connectors 28 Circuit section 30 Angular rate sensor 30P Angular rate sensor for pitch axis 30R Angular rate sensor for roll axis Angular rate sensor for 30Y yaw axis 31 Filter Circuit 32 Drivers 32P Pitch axis angular velocity sensor driver 32R Angular velocity sensor driver for roll axis Driver for the angular rate sensor for the 32Y yaw axis 40 Mounting surface 41 Mounting surface 42 Cushion 50 Resistance 51 Capacitor 52 Damping Resistor 251 1st wiring section 252 2nd wiring section 253 3rd wiring section 281 1st circuit section 282 2nd circuit section 283 3rd circuit section OA optical axis X, Y, Z Axes

Claims

1. An angular velocity sensor for blur correction; a flexible printed circuit board having a plurality of wirings for transmitting the angular velocity sensor and a digital control signal for controlling the operation of the angular velocity sensor; Equipped with The flexible printed circuit board is provided with a filter circuit for suppressing a specific frequency of the control signal. Imaging device.

2. the flexible printed circuit board includes a first wiring section in which the patterns of the plurality of wirings are formed side by side, 2. The imaging device according to claim 1, wherein one end of the first wiring portion is provided with a connection portion for connecting to a control circuit that generates the control signal, and the other end is provided with a circuit portion on which electronic components including the angular velocity sensor and the filter circuit are mounted.

3. the circuit portion includes a first circuit portion and a second circuit portion; The imaging device according to claim 2 , further comprising a second wiring portion between the first circuit portion and the second circuit portion.

4. The imaging device according to claim 3 , wherein the second wiring portion is flexible.

5. 5. The imaging device of claim 4, wherein when a plane on which the first circuit unit is arranged is defined as a first plane and a plane on which the second circuit unit is arranged is defined as a second plane, the second wiring unit is bent so that the first circuit unit and the second circuit unit are arranged in a relationship in which the first plane and the second plane intersect with each other.

6. The imaging device according to claim 5 , wherein the first plane and the second plane are orthogonal to each other.

7. the circuit portion further includes a third circuit portion; The imaging device according to claim 3 , further comprising a third wiring portion between the second circuit portion and the third circuit portion.

8. The imaging device according to claim 7 , wherein the third wiring portion is flexible.

9. When a plane on which the first circuit portion is arranged is defined as a first plane, a plane on which the second circuit portion is arranged is defined as a second plane, and a plane on which the third circuit portion is arranged is defined as a third plane, 9. The imaging device of claim 8, wherein the second wiring portion and the third wiring portion are bent such that the first circuit portion, the second circuit portion, and the third circuit portion are arranged in a relationship in which the first plane, the second plane, and the third plane intersect with each other.

10. The imaging device according to claim 9 , wherein the first plane, the second plane, and the third plane are perpendicular to each other.

11. The angular velocity sensor is provided for each of the three axes, pitch, yaw, and roll. The imaging device according to claim 7 , wherein at least the angular velocity sensor for the pitch axis and the angular velocity sensor for the yaw axis are mounted on the second circuit unit or the third circuit unit.

12. The imaging device according to claim 11 , wherein the angular velocity sensor for the roll axis is mounted on the first circuit portion.

13. The imaging device according to claim 3 , wherein the filter circuit is mounted on the first circuit section.

14. The imaging device according to claim 2 , wherein the first wiring portion has the pattern formed on only one surface thereof and has a structure that is more flexible than the circuit portion.

15. 3. The image pickup device according to claim 2, wherein the first wiring portion has the pattern formed only on one side thereof and has a structure without a protective film.

16. The imaging device according to claim 2 , wherein the circuit section has a structure in which the pattern is formed on both sides.

17. The imaging device according to claim 2 , wherein the electronic components are mounted on only one side of the circuit section.

18. The imaging device according to claim 17 , further comprising a vibration reducing member attached to a surface of the circuit portion opposite to the surface on which the electronic components are mounted.

19. The imaging device according to claim 18 , wherein the vibration reducing member has a thickness greater than a thickness of the flexible printed circuit board.

20. The imaging device according to claim 1 , wherein the filter circuit is provided on a specific wire among the plurality of wires, the specific wire having a communication frequency of the control signal equal to or lower than a set frequency.

21. 21. The imaging device according to claim 20, wherein the specific wiring is a chip select communication line that transmits a chip select signal for selecting one of a plurality of circuits to be controlled in serial communication as the control signal.

Images