JP2016217864A - Attachment structure of electronic azimuth meter, and imaging apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the accuracy of detecting the direction of an electronic apparatus with an electronic azimuth meter.SOLUTION: The attachment structure of an electronic azimuth meter related to one embodiment of the present invention includes: a circuit board on which an electronic azimuth meter having a first surface and second surface that are non-parallel with each other is mounted; and a support body for supporting the electronic azimuth meter. The support body includes a first support surface for supporting the first surface and a second support surface for supporting the second surface.SELECTED DRAWING: Figure 7

Description

  The present invention relates to an electronic azimuth meter mounting structure and a photographing apparatus.

  An electronic device such as a digital camera having a built-in electronic compass (an electronic compass and an orientation detection element) is known. For example, Patent Document 1 describes a digital camera having a function of displaying information on a landmark that is a subject on a captured image based on information on a shooting direction acquired by an electronic compass.

  In a conventional electronic device, an electronic compass is attached to the electronic device by attaching a circuit board on which the electronic compass is mounted to a case of the electronic device.

JP2013-117649A

  In the above-described conventional electronic compass mounting structure, an error in the direction in which the electronic compass is mounted on the electronic device includes an electronic compass mounting error on the circuit board, a circuit board dimensional error, an electronic device case, and the like. Since this is the sum of errors, it was difficult to reduce the errors.

  The present invention has been made in view of the above circumstances, and an object thereof is to detect the orientation of an electronic device with higher accuracy.

  An electronic compass mounting structure according to an embodiment of the present invention includes a circuit board on which an electronic compass having a first surface and a second surface that are not parallel to each other is mounted, and a support that supports the electronic compass. Prepare. The support has a first support surface that supports the first surface and a second support surface that supports the second surface.

  In the mounting structure described above, the support may be configured such that a window that opens to the first support surface is formed, and the contact state between the second surface and the second support surface is visible through the window.

  In the above mounting structure, the first surface and the second surface may be configured to be planes orthogonal to each other.

  In the above mounting structure, a recess may be formed in the support to accommodate the electronic azimuth meter, and the first support surface and the second support surface may be formed in the recess.

  In the above mounting structure, the recess may have a notch formed on a side wall facing at least one of the first support surface and the second support surface.

  In the above mounting structure, a hole may be formed at a position facing the electronic azimuth meter of the circuit board.

  In the above mounting structure, the electronic azimuth meter may have a third surface that is non-parallel to both the first surface and the second surface, and the support may have a third support surface that supports the third surface. Good.

  In the above mounting structure, the first surface, the second surface, and the third surface may be orthogonal to each other.

  In the above mounting structure, the support has a support member, a first support surface and a second support surface, and holds the electronic azimuth meter, and restricts the orientation of the holding member with respect to the support member in a predetermined direction. It is good also as a structure provided with orientation structure.

  In the mounting structure described above, one of the support member and the holding member includes a first pin and a second pin, and the first pin and the second pin are mutually connected from the surface facing the other of the support member and the holding member. It is good also as a structure which protruded in parallel and the other of the supporting member and the holding member was provided with the round hole fitted to a 1st pin, and the elongate hole fitted to a 2nd pin.

  In the mounting structure, the holding member has a fourth surface facing the support member, the support member protrudes from a surface facing the holding member, and has a plurality of protrusions whose tips are in contact with the fourth surface. It is good also as a structure.

  In the above mounting structure, the protrusion is a trapezoidal protrusion having a fifth surface in contact with the fourth surface at the tip, and the fifth surfaces of the plurality of protrusions are formed on the same plane. It is good also as a structure.

  In the above mounting structure, the circuit board may have a notch that avoids the protruding portion.

  In the mounting structure described above, the holding member may be configured to sandwich and hold the circuit board with the support member.

  In the above attachment structure, the circuit board may be a flexible printed board.

  An imaging device according to an embodiment of the present invention includes an imaging device, a circuit board on which an electronic azimuth meter is mounted, and a housing having a support that supports the circuit board. It is attached to the support body by the mounting structure.

  The above imaging apparatus may include a GPS sensor and celestial body tracking means for driving the imaging device following the celestial object image during imaging based on the detection results of the GPS sensor and the electronic compass. Good.

  An orientation detection element mounting structure according to an embodiment of the present invention includes a circuit board on which the orientation detection element is mounted, and a support that supports the orientation detection element. The azimuth detecting element includes an outer shell having an azimuth reference plane that indicates a reference of the azimuth detected by the azimuth detecting element. The support has a support surface in contact with the orientation reference surface of the orientation detection element, and supports the orientation detection element on the orientation reference surface.

  According to an embodiment of the present invention, an electronic compass can be attached to an electronic device in a more accurate orientation, and as a result, the orientation of the electronic device can be detected with higher accuracy.

It is a block diagram of the main body of the digital single-lens reflex camera which concerns on one Embodiment of this invention. It is an external view of the main body of the digital single-lens reflex camera which concerns on one Embodiment of this invention. It is an external view of the main body of the digital single-lens reflex camera which concerns on one Embodiment of this invention. It is the figure which expanded the upper part of the main body case of the state which removed the upper cover. It is a disassembled perspective view of the main body which shows the state which decomposed | disassembled the electronic compass unit. It is the figure which looked at the mounting part vicinity of the board | substrate from the upper surface side. It is the external view which looked at the electronic compass holding member from the lower surface side. It is the figure which looked at the sensor support member with which the board | substrate was mounted | worn from the downward direction.

  Hereinafter, a photographing apparatus according to an embodiment of the present invention will be described with reference to the drawings. In the following, a digital single lens reflex camera will be described as an embodiment of the present invention. Note that the photographing apparatus is not limited to a digital single lens reflex camera, but includes, for example, a mirrorless single lens camera, a compact digital camera, a video camera, a camcorder, a tablet terminal, a PHS (Personal Handy phone System), a smartphone, a feature phone, a portable game machine, and the like. Alternatively, another type of apparatus having a photographing function, a system combining these apparatuses, or a system having functions equivalent to these apparatuses may be used. The present invention can also be applied to an electronic device that does not have a photographing function.

  FIG. 1 is a block diagram showing a schematic configuration of a main body 1 of the digital single-lens reflex camera of the present embodiment.

  The main body 1 includes a control unit 1a, an imaging unit 1b, an image processing unit 1c, a display device 1d, a memory card interface 1e, a flash memory 1f, an operation unit 1g, an acceleration sensor 1h, a GPS (Global Positioning System) sensor 1i, and a gyro sensor 1j. And an electronic compass 515. The imaging unit 1b includes an imaging element 1ba and a drive unit 1bb.

  The control unit 1a controls each unit of the digital single-lens reflex camera based on a user operation on the operation unit 1g. The operation unit 1g includes various switches necessary for the user to operate the single-lens reflex camera, such as a power switch, a release switch, and a shooting mode switch.

  The image pickup device 1ba is a single-plate color CCD (Charge Coupled Device) image sensor having a Bayer array color filter. The image sensor 1ba converts an optical image formed on the light receiving surface into an image signal and outputs the image signal. The imaging device 1ba is not limited to a CCD image sensor, and a CMOS (Complementary Metal Oxide Semiconductor) image sensor or other types of image sensors may be used. In addition, a color filter array other than the Bayer array may be employed, or a three-plate or frame-sequential imaging device may be used instead of the imaging device 1ba.

  The image processing unit 1c generates image data (still image data and moving image data) based on the imaging signal generated by the imaging element 1ba, and generates and outputs an image file of a predetermined format based on the image data. . The image processing unit 1c generates screen data to be displayed on the display device 1d based on the image data, and generates and outputs a video signal of a predetermined format based on the screen data.

  The display device 1d is an LCD (Liquid Crystal Display), for example, and performs screen display based on the video signal output from the image processing unit 1c.

  The memory card interface 1e includes a card slot into which a memory card is detachably inserted. Data such as an image file is written to or read from the memory card inserted into the card slot.

  In addition, data such as an image file can be stored for a long time in the flash memory 1f. Reading and writing of data such as an image file is performed on a storage destination (memory card or flash memory 1f) set by a user operation.

  The acceleration sensor 1h detects the acceleration of the main body 1 in three orthogonal directions (X-axis, Y-axis, and Z-axis directions described later).

  The GPS sensor 1i receives GPS signals from a plurality of GPS satellites above the main body 1, and three-dimensionally measures the current position of the main body 1 based on the received GPS signals.

  The gyro sensor 1j detects angular velocities around the optical axis (X axis) of the main body 1 and about two orthogonal axes (Y axis and Z axis) perpendicular to the optical axis (X axis).

  An electronic compass (electronic compass, orientation detection element, geomagnetic sensor) 515 detects the strength of the magnetic field (geomagnetism) in the three orthogonal axes of the main body 1. Details of the electronic compass 515 will be described later.

  The drive unit 1bb of the image pickup unit 1b minutely drives the image pickup element 1ba in two orthogonal axis directions (Y axis direction and Z axis direction) perpendicular to the optical axis (X axis) and in the YZ in-plane rotation direction. The micro drive of the image sensor 1ba by the drive unit 1bb is used in a camera shake correction function or an astronomical automatic tracking imaging function. Details of the camera shake correction function and the astronomical auto tracking imaging function are described in Japanese Patent Application Laid-Open No. 2010-122672.

  When the camera shake correction function is enabled, the control unit 1a detects the vibration (hand shake) of the main body 1 based on the detection results of the acceleration sensor 1h and the gyro sensor 1j. And the control part 1a controls the drive part 1bb, and drives the image pick-up element 1ba in the direction which cancels the detected vibration. As a result, an image with little image blur is taken.

  When the celestial automatic tracking shooting function is enabled, the control unit 1a detects the position and orientation of the main body 1 from the detection results of the GPS sensor 1i, the electronic compass 515, the acceleration sensor 1h, and the gyro sensor 1j, and the position and orientation of the main body 1 The movement of the celestial body relative to the main body 1 is calculated based on the information. And the control part 1a controls the drive part 1bb, and drives the image pick-up element 1ba according to the motion of a celestial body. Thereby, even if the exposure time is extended, a star image is captured without flowing a star image. Since the effect of the celestial automatic tracking shooting function is strongly influenced by the detection accuracy of the orientation of the main body 1 by the electronic compass 515, higher azimuth detection accuracy than before is required. For the purpose of detecting a general shooting direction in normal shooting, a direction detection error of about ± 10 degrees is sufficiently allowed. However, when the celestial automatic tracking shooting is performed using the detection result of the electronic compass 515 (specifically, the celestial tracking data is calculated based on the azimuth information detected by the electronic compass 515), the azimuth detection error is large. Even if it is ± several degrees, tracking error that cannot be ignored occurs depending on the exposure time, and the celestial image moves.

  In addition, after the electronic compass 515 is attached to the main body 1, the offset amount and sensitivity of the signal value are adjusted. This adjustment improves the detection accuracy of the electronic compass 515, but a certain degree of error remains after the adjustment. The lower the accuracy of the orientation of the electronic compass 515 relative to the main body 1, the greater the detection error of the adjusted electronic compass 515. Therefore, in order to increase the detection accuracy of the electronic compass 515, it is necessary to attach the electronic compass 515 to the main body 1 in an accurate orientation.

  2 and 3 are external views of the main body 1 of the digital single-lens reflex camera of the present embodiment. 2 is a perspective view of the main body 1 viewed from the front side (subject side), and FIG. 3 is a perspective view of the main body 1 viewed from the back side (photographer side). 2, the optical axis direction (the direction from the main body 1 toward the subject) is the X-axis positive direction, and the left side toward the subject is the Y-axis positive direction, and the X-axis and Y-axis directions are perpendicular to each other. The direction (vertically upward) is defined as the positive Z-axis direction. Also, the Z-axis positive direction is referred to as up (Z-axis negative direction is down), the Y-axis positive direction is left (Y-axis negative direction is right), and the X-axis positive direction is front (X-axis negative direction is back).

  The main body 1 includes a frame (not shown) and a main body case 10 (exterior) formed from a plurality of exterior members attached to the frame. Each exterior member is formed from a magnesium alloy.

  FIG. 4 is an enlarged view of the upper part of the main body case 10 with the upper cover 21 (FIG. 2) removed. A substantially U-shaped sensor support member 30 is attached to the center of the upper surface of the main body case 10 (specifically, the upper exterior member 10a). In addition, although the sensor support member 30 of this embodiment is formed from engineering plastics, such as a polycarbonate excellent in the moldability, you may form it with lightweight metal materials, such as a magnesium alloy and an aluminum alloy.

  An electronic compass section 31 that houses the electronic compass unit 50 is formed on the U-shaped right arm of the sensor support member 30, and a GPS section 32 that houses the GPS unit 40 is formed on the bottom of the U-shape. The GPS unit 1 is mounted on the GPS unit 40. The electronic compass section 31 and the GPS section 32 have a substantially rectangular bottom surface that is horizontal when the main body 1 is placed on a horizontal plane, and extend vertically from the edge of the bottom surface in four directions (or three). And a wall portion surrounding from the direction). Sealing members 31a and 32a are respectively disposed on the ridgelines of the wall portions of the compartments 31 and 32 (and the edge of the bottom surface of the electronic compass compartment 31 where no wall portion is provided). When the upper cover 21 (FIG. 2) is attached to the upper exterior member 10a, the gap between the sensor support member 30 and the upper cover 21 is closed by the sealing members 31a and 32a, and the electronic compass section 31 and the GPS section 32 are It becomes a space (watertight space) sealed from the outside.

  FIG. 5 is an exploded perspective view showing the electronic compass unit 50 in an exploded state. The electronic compass unit 50 includes an electronic compass substrate 51 (hereinafter simply referred to as “substrate 51”) and an electronic compass holding member 52. As will be described later, the substrate 51 is maintained in a state of being sandwiched between the sensor support member 30 and the electronic compass holding member 52. The sensor support member 30 and the electronic compass holding member 52 constitute a support that supports the electronic compass 515.

  FIG. 6 is a view of the vicinity of the mounting portion 511 of the substrate 51 as viewed from the upper surface side. The substrate 51 is a flexible printed circuit board and includes a mounting portion 511 and a wiring portion 512. The mounting unit 511 is mounted with an electronic compass 515 and a control circuit that drives the electronic compass 515 and performs signal processing. The leading end of the wiring part 512 is passed through the through hole provided in the bottom surface of the electronic compass section 31 into the main body case 10 and connected to the control unit 1a (FIG. 1) of the main body 1.

  The electronic compass 515 includes three magnetic sensors (not shown) having sensitivity in directions orthogonal to each other, and detects the strength of the magnetic field in the directions of the three orthogonal axes. The electronic compass 515 has a substantially rectangular parallelepiped (plate) package (outer shell) whose upper surface is square. The three magnetic sensors are arranged with their detection axes directed in directions orthogonal to the three surfaces 515a, 515b and 515c orthogonal to each other of the package. That is, the three surfaces 515a, 515b, and 515c of the package of the electronic compass 515 are azimuth reference planes that indicate the azimuth reference detected by the electronic compass 515. Therefore, in order to detect the orientation of the main body 1 with high accuracy using the electronic compass 515, the three surfaces 515a, 515b and 515c of the package of the electronic compass 515 are connected to the three orthogonal axes (X axis, Y The package of the electronic compass 515 needs to be accurately aligned with the main body 1 so as to be orthogonal to the axis and the Z axis.

  FIG. 7 is an external view of the electronic compass holding member 52 as viewed from the lower surface side. The electronic compass holding member 52 is a substantially rectangular plate-like member that is long in the X-axis direction, and has a shape corresponding to the mounting portion 511 of the substrate 51 (FIG. 6). The electronic compass holding member 52 of the present embodiment is formed of an engineering plastic such as polycarbonate, like the sensor support member 30, but may be formed of a lightweight alloy such as a magnesium alloy or an aluminum alloy.

  The electronic compass holding member 52 is formed with a round hole 523 and a long hole 524 that respectively penetrate in the vertical direction. The round hole 523 is formed at one corner of the electronic compass holding member 52, and the long hole 524 is formed at a position away from the round hole 523 (that is, on the opposite side in the longitudinal direction of the electronic compass holding member 52).

  As shown in FIG. 5, two columnar pins 311 and 312 extending in the vertical direction from the vicinity of the edge of the bottom surface are formed in the electronic compass section 31 of the sensor support member 30. The pin 311 has substantially the same diameter as the round hole 523, and the diameter of the pin 312 is substantially the same as the short diameter of the long hole 524. Further, the long axis of the long hole 524 faces the longitudinal direction of the electronic compass holding member 52 (or the distance direction between the pin 311 and the pin 312).

  When attaching the electronic compass holding member 52 to the sensor support member 30, the pins 311 and 312 of the electronic compass section 31 are passed through the round hole 523 and the long hole 524 of the electronic compass holding member 52, respectively. The electronic compass holding member 52 can be accurately positioned with respect to the sensor support member 30 in the plane). That is, the direction of the electronic compass holding member 52 with respect to the X axis and the Y axis is accurately adjusted. Specifically, the round hole 523 is accurately positioned by the engagement between the round hole 523 and the pin 311. Further, by the engagement between the pin 312 and the elongated hole 524, the position of the electronic compass holding member 52 in the rotation direction around the pin 311 (round hole 523) can be accurately adjusted.

  The electronic compass section 31 of the sensor support member 30 is formed with five trapezoidal protrusions 313 that protrude in the vertical direction from the edge of the bottom surface. The upper surfaces of the five protrusions 313 are formed on the same horizontal plane. Therefore, when the electronic compass holding member 52 is attached to the sensor support member 30, the upper surface of each protruding portion 313 comes into contact with the surface 52a (FIG. 7) of the electronic compass holding member 52, whereby the surface 52a of the electronic compass holding member 52 is Placed exactly horizontally. That is, the direction of the electronic compass holding member 52 with respect to the Z axis is accurately adjusted.

  As shown in FIG. 7, a substantially square-shaped recess 521 in which the electronic compass 515 is accommodated is formed on the lower surface of the electronic compass holding member 52. The recess 521 has two side surfaces 521a and 521b and a bottom surface 521c. In a state where the electronic compass holding member 52 is attached to the sensor support member 30, the side surfaces 521a, 521b and the bottom surface 521c are arranged perpendicular to the X axis, the Y axis, and the Z axis, respectively.

  Accordingly, the surfaces 515a, 515b and 515c of the electronic compass 515 are fixed in a state where they are brought into close contact with the side surfaces 521a and 521b and the bottom surface 521c of the recess 521 of the electronic compass holding member 52, respectively. And 515c can be arranged perpendicular to the X, Y and Z axes, respectively.

  Further, a notch 521d in which the side wall of the recess 521 is not formed is formed at one corner of the recess 521. By providing the notch 521d, a jig (not shown) is inserted into the recess 521 from the outside via the notch 521d in a state where the substrate 51 and the electronic compass holding member 52 are combined with the sensor support member 30. It becomes possible to press the package of the compass 515 against the side surfaces 521a and 521b of the recess 521 of the electronic compass holding member 52 so as to be in close contact therewith.

  In addition, square windows 522 penetrating in the vertical direction are formed at the four corners of the bottom surface 521c of the recess 521. By providing the window 522, whether or not the package of the electronic compass 515 is correctly arranged with respect to the recess 521 of the electronic compass holding member 52 when the sensor support member 30 is combined with the substrate 51 and the electronic compass holding member 52. (For example, whether or not the side surfaces 521a and 521b of the recess 521 and the package surfaces 515a and 515b of the electronic compass 515 are in close contact with each other) can be visually confirmed through the window 522. In addition, after the substrate 51 and the electronic compass holding member 52 are combined with the sensor support member 30, an adhesive is injected into the recess 521 through the window 522, and the electronic compass 515 and the electronic compass holding member are applied to the sensor support member 30. 52 can be bonded and fixed.

  FIG. 8 is a view of the electronic compass holding member 52 on which the substrate 51 is mounted as viewed from below. Four cutouts 511a, 511b, 511c, and 511d are formed on the peripheral edge of the substrate 51 in order to avoid interference with the protrusion 313 and the pin 311 (FIG. 5) of the sensor support member 30. By providing the notches 511a, 511b, 511c, and 511d, the surface 52a of the electronic compass holding member 52 directly contacts the tip of the protruding portion 313, so that the orientation of the surface 52a of the electronic compass holding member 52 can be accurately adjusted. .

  Further, the substrate 51 is formed to be shorter than the electronic compass holding member 52 in the longitudinal direction, and one end portion (right end portion in FIG. 8) of the electronic compass holding member 52 is exposed without being covered by the substrate 51. doing. Therefore, the protruding portion 313 formed integrally with the pin 312 (FIG. 5) also directly contacts the surface 52 a of the electronic compass holding member 52 without being interfered with the substrate 51.

  Further, a hole 511e is formed in the substrate 51 at a position facing the central portion of the lower surface of the electronic compass 515. A jig is abutted against the lower surface of the package of the electronic compass 515 through the hole 511e, and the electronic compass 515 is pressed against the electronic compass holding member 52, whereby the electronic compass 515 is placed on the bottom surface 521c of the electronic compass holding member 52. Can be brought into close contact with each other.

  Next, a procedure for assembling the electronic compass unit 50 will be described.

  First, the mounting portion 511 of the substrate 51 is mounted on the electronic compass holding member 52 so that the electronic compass 515 is accommodated in the recess 521 of the electronic compass holding member 52, and the state shown in FIG.

  Next, the notch 521d (FIG. 7) is inserted into the recess 521 of the electronic compass holding member 52 in the direction indicated by the arrow T in FIG. 8, and the package surfaces 515a and 515b of the electronic compass 515 are inserted into the electronic compass. The holding member 52 is brought into close contact with the side surfaces 521a and 521b of the recess 521.

  Further, the surface 515 c of the electronic compass 515 is brought into close contact with the bottom surface 521 c of the electronic compass holding member 52.

  Next, the inside of the recess 521 is looked into from the window 522 of the electronic compass holding member 52, and the package surfaces 515a and 515b of the electronic compass holding member 52 are in close contact with the side surfaces 521a and 521b of the recess 521 of the electronic compass holding member 52, respectively. Make sure that

  Next, an adhesive is dropped into the recess 521 from the four windows 522, and the electronic compass 515 and the electronic compass holding member 52 are bonded and fixed. In this way, the electronic compass 515 and the electronic compass holding member 52 are directly adhered without using an adhesive, and are bonded and fixed at a place other than the contact surface, whereby the electronic compass holding member 52 is attached to the electronic compass holding member 52. The package can be attached with high positional accuracy.

  Next, the electronic compass holding member 52 to which the substrate 51 (electronic compass 515) is bonded and fixed is mounted on the electronic compass section 31 of the sensor support member 30. Specifically, the surface of the electronic compass holding member 52 on which the substrate 51 is mounted faces the sensor support member 30, and the pins 311 and 312 of the sensor support member 30 are inserted into the round holes 523 and the long holes 524 of the electronic compass holding member 52. Are inserted, and the electronic compass holding member 52 is pushed toward the sensor support member 30 until the surface 52a of the electronic compass holding member 52 securely contacts the upper surface of the protruding portion 313 of the sensor support member 30.

  In this state, by applying an adhesive around the electronic compass holding member 52 (a gap between the electronic compass holding member 52 and the inner wall surface of the electronic compass section 31), the sensor support member 30 is covered with the electronic compass holding member 52. Are bonded and fixed, and the substrate 51 is maintained between the electronic compass holding member 52 and the bottom surface of the electronic compass section 31 to complete the electronic compass unit 50.

  The above is the description of the exemplary embodiments of the present invention. Embodiments of the present invention are not limited to those described above, and various modifications are possible within the scope of the technical idea of the present invention. For example, the embodiment of the present invention also includes contents appropriately combined with embodiments or the like clearly shown in the specification or obvious embodiments.

  In the above embodiment, the package of the electronic compass 515 has a rectangular parallelepiped shape having surfaces 515a, 515b, and 515c orthogonal to each other, and correspondingly, the recess 521 of the electronic compass holding member 52 has three orthogonal Support surfaces (side surfaces 521a and 521b and a bottom surface 521c) are formed, but the present invention is not limited to this configuration. The package of the electronic compass 515 has two or more surfaces that are not parallel to each other, and two or more support surfaces that respectively overlap the two or more surfaces are provided on the electronic compass holding member 52, thereby The direction can be accurately adjusted to a predetermined direction.

  In the above embodiment, the electronic compass 515 is attached to the electronic device (sensor support member 30) via the electronic compass holding member 52, but the present invention is not limited to this configuration. Instead of using the electronic compass holding member 52, for example, a recess 521 may be provided in the sensor support member 30 and the electronic compass 515 may be directly attached to the sensor support member 30. In this case, the direction of the electronic compass 515 is upside down from the above embodiment.

  Moreover, it is good also as a structure which provides the recessed part 521 in exterior (for example, upper exterior member 10a), and does not use the sensor support member 30, but attaches the electronic compass 515 directly to an exterior. Alternatively, the electronic compass section 31 may be provided on the exterior, and the electronic compass holding member 52 attached with the electronic compass 515 may be attached to the exterior.

  In addition, since the flexible printed circuit board is indefinite, the bonding work is difficult, and bonding failure is relatively likely to occur. In the configuration in which the substrate 51 is directly bonded and fixed to the exterior or the sensor support member 30, when an adhesion failure of the substrate 51 occurs, a relatively large and expensive member such as the exterior member or the sensor support member 30 has to be discarded. Disappear. By using the sensor support member 30 that is small and relatively inexpensive as in the above-described embodiment, it is possible to reduce the loss when an adhesion failure occurs.

  In the above-described embodiment, the adhesive is used for attaching the electronic compass 515 to the electronic compass holding member 52 and attaching the electronic compass holding member 52 to the sensor support member 30, but other fixing methods (for example, , Screwing, caulking, elastic holding by a spring).

1 Digital SLR Camera Body 10 Body Case 30 Sensor Support Member 40 GPS Unit 50 Electronic Compass Unit 51 Electronic Compass Board 515 Electronic Compass 52 Electronic Compass Holding Member

Claims (18)

A circuit board on which an electronic compass having a first surface and a second surface that are non-parallel to each other is mounted;
A support for supporting the electronic compass;
With
The support is
A first support surface for supporting the first surface;
A second support surface for supporting the second surface,
Mounting structure of electronic compass. The support is formed with a window that opens to the first support surface,
The contact state between the second surface and the second support surface is visible through the window,
The electronic azimuth meter mounting structure according to claim 1. The first surface and the second surface are planes orthogonal to each other;
The electronic azimuth meter mounting structure according to claim 1 or 2. A recess for accommodating the electronic azimuth meter is formed in the support,
The first support surface and the second support surface are formed in the recess,
The mounting structure of the electronic azimuth meter according to any one of claims 1 to 3. The recess has a notch formed in a side wall facing at least one of the first support surface and the second support surface.
The mounting structure of the electronic azimuth meter according to any one of claims 1 to 4. The electronic compass is
A third surface that is non-parallel to both the first surface and the second surface;
The support is
A third support surface for supporting the third surface;
The electronic azimuth meter mounting structure according to any one of claims 1 to 5. The first surface, the second surface and the third surface are orthogonal to each other;
The electronic azimuth meter mounting structure according to claim 6. The support is
A support member;
A holding member having the first support surface and the second support surface and holding the electronic azimuth meter;
An orientation structure that regulates the direction of the holding member with respect to the support member in a predetermined direction;
With
The mounting structure of the electronic azimuth meter according to any one of claims 1 to 7. Either one of the support member and the holding member is
The first pin,
A second pin,
The first pin and the second pin are
Projecting parallel to each other from the surface facing the other of the support member and the holding member,
The other of the support member and the holding member is
A round hole that fits into the first pin;
An elongated hole that fits into the second pin,
The mounting structure of the electronic azimuth meter according to claim 8. The holding member is
A fourth surface facing the support member;
The support member is
Projecting from a surface facing the holding member, and having a plurality of projecting portions whose tips contact the fourth surface;
The electronic azimuth meter mounting structure according to claim 9. The protrusion is
It is a trapezoidal protrusion having a fifth surface formed at the tip thereof in contact with the fourth surface,
The fifth surfaces of the plurality of protrusions are formed on the same plane;
The mounting structure of the electronic azimuth meter according to claim 10. The circuit board is formed with a notch that avoids the protrusion,
The mounting structure of the electronic azimuth meter according to claim 10 or 11. The holding member is
The circuit board is sandwiched and held between the support members,
The attachment structure of the electronic azimuth meter according to any one of claims 8 to 12. A hole is formed at a position facing the electronic compass of the circuit board,
The mounting structure of the electronic azimuth meter according to any one of claims 1 to 13. The circuit board is a flexible printed circuit board;
The mounting structure of the electronic azimuth meter according to any one of claims 1 to 14. An image sensor;
A circuit board on which an electronic compass is mounted;
A housing having a support for supporting the circuit board;
With
An imaging apparatus in which the electronic azimuth meter is attached to the support by the electronic azimuth meter attachment structure according to any one of claims 1 to 15. A GPS sensor;
Celestial body tracking means for driving the imaging device following the subject image of the celestial body during photographing based on the detection results of the GPS sensor and the electronic azimuth meter,
The imaging device according to claim 16. A circuit board on which an orientation detection element is mounted;
A support for supporting the orientation detection element;
With
The orientation detection element is
An outer shell having an azimuth reference plane indicating the azimuth reference detected by the azimuth detecting element;
The support is
Having a support surface in contact with the azimuth reference plane of the azimuth detection element, and supporting the azimuth detection element on the azimuth reference plane;
Mounting structure of orientation detection element.

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