JP2016017973A - Imaging device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an imaging device that avoids an influence of a disturbance magnetic field generated by not only components to be built in an imaging device but also interchangeable lenses or accessories to be interchangeably attached to the imaging device, and enables a correct azimuth during photographing.SOLUTION: Geomagnetism detection means is arranged in one area to be divided by a main body frame, and in other area, a mount is arranged to which and from which an interchangeable lens can be attached and detached. The geomagnetism detection means is arranged in one area to b divided by an imaging optical axis, and in other area, an accessory attachment unit is arranged to which an externally-attachable accessory can be changeably attached. The geomagnetism detection means is arranged in the area to be divided by the imaging optical axis, and in an area on which side a light source and an external memory slot are arranged, and the geomagnetism detection means is separated from the power source by a substrate having the external memory slot mounted.SELECTED DRAWING: Figure 6

Description

  The present invention relates to an imaging apparatus, and more particularly to an imaging apparatus capable of detecting geomagnetism and detecting a direction by a geomagnetic sensor.

  2. Description of the Related Art Conventionally, a technique is known in which a geomagnetic sensor detects the direction of geomagnetism on the earth in an image generated by an imaging device, and records azimuth information indicating the orientation of the camera at the time of imaging in association with the captured image as the imaging direction. ing.

  On the other hand, the geomagnetism on the earth is very weak, while the geomagnetic sensor is greatly affected by components and the like that generate a magnetic field mounted inside the imaging apparatus. Therefore, although it is desired to dispose the geomagnetic sensor away from these components and the like, there is a problem that it is desired to suppress the size of the imaging device.

  For example, in Patent Document 1, a geomagnetic sensor is disposed on an operation member that is operated by a user and protrudes from the main body of the imaging device, and generates a magnetic field inside the imaging device without affecting the appearance of the imaging device. A technique for avoiding the influence of parts is disclosed.

JP 2014-21457 A

  With the prior art disclosed in the above-mentioned patent documents, it is possible to avoid the influence of components that generate a magnetic field inside the imaging apparatus. However, no consideration is given to the influence of magnetic fields generated during driving on members that are interchangeably attached to the imaging apparatus, such as interchangeable lenses and external strobes. In addition, interchangeable members such as interchangeable lenses and external strobes have a variety of objects with different focal lengths, F values, and guide numbers. Therefore, unlike components inside the image pickup apparatus, the magnetic field generated from these members is different. The strength is also diverse. Therefore, unless the influence of the magnetic field generated by a member that is replaceably attached to the imaging apparatus is also taken into consideration, it is difficult to avoid the disturbance magnetic field during imaging and to accurately azimuth.

  Accordingly, an object of the present invention is to avoid the influence of a disturbance magnetic field generated by an interchangeable lens or an accessory that is attached to the imaging device in an interchangeable manner as well as the components built in the imaging device, so that an accurate orientation during imaging is obtained. It is an object of the present invention to provide an imaging apparatus that enables the above.

  In order to achieve the above object, in the configuration of the imaging apparatus 1 according to the present invention, the geomagnetism detecting means 311 is arranged in one area divided by the main body frame 321, and the interchangeable lens 316 is arranged in the other area. A detachable mount 13 is arranged. Further, the geomagnetism detecting means 311 is arranged in one area divided by the imaging optical axis 318, and the accessory attaching part 18 to which the external accessory 323 is attached in a replaceable manner is arranged in the other area. Further, the geomagnetism detecting means 311 is arranged in an area divided by the imaging optical axis 318 on the side where the power supply 309 and the external memory slot 314 are arranged. The geomagnetism detecting means 311 is separated from the power source 309 by a substrate 310 on which an external memory slot is mounted.

  According to the present invention, not only the components built into the imaging device but also the interchangeable lens and accessories attached to the imaging device in an interchangeable manner avoids the influence of the disturbance magnetic field, and enables accurate orientation during imaging. An imaging device can be provided.

It is a front perspective view of an imaging device of an embodiment of the present invention. It is a back perspective view of the imaging device of an embodiment of the present invention. It is a block diagram which shows the structure of the imaging device of embodiment of this invention. It is a figure which shows an example of the azimuth | direction operation | movement of the imaging device of embodiment of this invention. It is a flowchart which shows an example of the imaging operation of the imaging device of embodiment of this invention. It is a figure inside an imaging device which is a first embodiment of the present invention. It is a top view inside the imaging device which is 2nd embodiment of this invention.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a perspective view showing an external appearance of an imaging apparatus 1 according to an embodiment of the present invention as viewed from the front side. Specifically, FIG. 1 shows a state in which the interchangeable lens unit 316 (see FIG. 3 described later) is removed.

  In FIG. 1, the imaging apparatus 1 is provided with a grip portion 11 that protrudes forward so that a photographer can easily grasp the imaging apparatus 1 stably during imaging. On the upper part of the grip part 11, a release switch 12 is arranged as an imaging start switch.

  The mount unit 13 fixes the detachable interchangeable lens unit 316 to the imaging device 1. The mirror box 14 is disposed in the housing of the imaging apparatus 1, and the imaging light flux that has passed through the interchangeable lens unit 316 is guided here. A quick return mirror 15 is disposed inside the mirror box 14.

  The quick return mirror 15 includes a main mirror 15a and a sub mirror 15b. A part of the main mirror 15a is a half mirror, and part of the light is transmitted. The transmitted light is reflected by the sub mirror 15b and enters the distance measuring unit 307 (see FIG. 3 described later).

  Further, when the release switch 12 is pressed at the time of imaging, the quick return mirror 15 rotates around an unillustrated axis provided at an end thereof, and the reflection surface is an optical axis 318 (see FIG. 3 described later). The imaging light flux is guided to the image sensor 304 (see FIG. 3 described later).

  The built-in strobe 16 is located above the image pickup apparatus 1 and when the operation button 24 (see FIG. 2 described later) is operated by the user, the built-in strobe 16 is lifted to a predetermined position as shown by the broken line in FIG. The strobe light emitting unit 17 faces the subject and is ready to emit light. The built-in strobe light emitting unit 17 is a known electronic flash. When the user gives an imaging instruction in the raised state as shown in FIG. 1, imaging is performed by feeding from a built-in strobe capacitor 313 (see FIG. 3 described later). Emits auxiliary light.

  The accessory shoe 18 is provided above the imaging device 1 and can be attached with an imaging accessory such as an external strobe 323 (see FIG. 3 to be described later), and transmits instructions from the CPU 302 (see FIG. 3 to be described later) to the accessory. It has electrical contacts to do.

  FIG. 2 is a perspective view showing an external appearance of the imaging device 1 according to the embodiment of the present invention as viewed from the back side. In FIG. 2, a finder eyepiece window 21 is provided above the back surface of the imaging apparatus 1, and an image display unit 22 is further provided near the center of the back surface. A main switch 23 is provided on the side of the image display unit 22 and can be instructed to start and end power supply from the power source 309 (see FIG. 3 described later) to each unit of the camera by the user's operation. . In addition, an operation button 24 is arranged beside the image display unit 22, and various settings of the imaging apparatus 1 can be changed by the user operating the operation button 24. The setting status is displayed.

  FIG. 3 is a block diagram showing a main configuration of the imaging apparatus 1 according to the embodiment of the present invention. In addition, the part which is common in the above-mentioned drawing is shown with the same symbol. A CPU (Central Processing Unit) 302 is mounted on the system control board 301. The CPU 302 controls the operation of the entire imaging apparatus 1 and executes various processes and instructions for each element.

  A release switch 12, a built-in flash 16, an accessory shoe 18, an image display unit 22, a main switch 23, and operation buttons 24 are connected to the system control board 301. Further, a memory 303, an image sensor 304, a mirror driving unit 305, a shutter driving unit 306, a distance measuring unit 307, and a photometric unit 308 are also connected. Furthermore, a power source 309, an external memory slot substrate 310, a geomagnetic sensor 311, a GPS antenna 312, and a built-in strobe capacitor 313 are connected.

  The memory 303 stores information related to the imaging operation of the imaging device 1. The power source 309 supplies power to the CPU 302 and each part of the circuit in the camera, and when the user operates the main switch 23, the power supply to each part is started and ended. The power source 309 may be applied in any form as long as it can supply power to the imaging apparatus 1 such as a lithium ion rechargeable battery, a dry battery, or an AC adapter.

  An external memory slot 314 is mounted on the external memory slot substrate 310. An external memory 315 can be attached to and detached from the external memory slot 314, and a captured image can be written to and read from the external memory 315.

  The geomagnetic sensor 311 outputs the detection result of the geomagnetism, and the CPU 302 calculates the optical axis direction of the imaging device 1 based on the output result, so that the orientation in the imaging direction of the imaging device 1 at the time of imaging can be detected. To do. In this embodiment, a triaxial geomagnetic sensor is used. As a magnetic sensor element used for the geomagnetic sensor 311, any type of geomagnetic sensor of MR (magneto-resistive) element, MI (magneto-impedance) element, or Hall element may be applied. Moreover, the acquired azimuth | direction information can be provided to the imaged image data.

  The GPS antenna 312 uses GPS (Global Positioning System) to receive radio waves from a plurality of GPS satellites orbiting around the earth, and obtains positioning information such as latitude, longitude, altitude, and the like of the location where the imaging device 1 exists. get. In addition, the acquired positioning information can be added to the captured image data.

  The built-in strobe capacitor 313 accumulates electric charges by supplying power from the power supply 309 when the image pickup apparatus 1 is in a power-on state and the built-in strobe 16 is in a light emission preparation state. Prepare to fire. When an imaging instruction is issued by the user, the charge is discharged and the built-in strobe light emitting unit 17 emits light.

  The interchangeable lens unit 316 is an optical system that forms subject image light on the imaging surface of the imaging element 304. A plurality of lens groups including a focus lens (not shown) for adjusting the focal position of the optical system and a movable diaphragm are provided. The lens driving unit 317 in the interchangeable lens unit 316 drives the focus lens and the movable diaphragm. The lens driving unit 317 is configured by a driving system using a DC motor, a stepping motor, an ultrasonic motor, or the like as a power source. Here, the optical axis 318 indicates the center of the optical system.

  The distance measuring unit 307 divides the light bent by the sub mirror 15 b into two to generate two images with parallax, performs known phase difference distance measurement, and outputs distance measurement information to the CPU 302.

  The pentaprism 319 is an optical member that converts and reflects the imaging light beam reflected by the main mirror 15a into an erect image. The user can observe the subject image from the viewfinder eyepiece window 21. The pentaprism 319 also guides a part of the imaging light flux to the photometry unit 308.

  The photometric unit 308 converts part of the obtained imaging light flux into a luminance signal of each area on the observation surface and outputs the luminance signal to the CPU 302. The CPU 302 calculates an exposure value from the obtained luminance signal.

  The imaging element 304 is provided at a position where light along the optical axis 318 reaches when the main mirror 15a is retracted, and a CMOS that is an imaging device that converts an image formed by the interchangeable lens unit 316 into an electrical signal is used. It is done. There are various types of imaging devices such as a CCD type, a CMOS type, and a CID (charge injection element) type, and any type of imaging device may be adopted.

  A shutter 320 that controls the exposure time is provided between the quick return mirror 15 and the image sensor 304. The shutter 320 is a known focal plane shutter.

  The release switch 12 is a switch that can be pressed in two steps. The switch S1 is turned on by the first stroke (half-press), and the switch S2 is turned on by the second stroke (full-press).

  When the release switch 12 is pressed halfway and S1 is turned on, the CPU 302 drives the distance measurement unit 307 and the photometry unit 308 to perform distance measurement and photometry operation, and the obtained distance measurement information and photometry information are output to the CPU 302. Is done. The CPU 302 sends the obtained distance measurement information and photometry information to the imaging lens drive unit 317, and the lens drive unit 317 is based on the obtained distance measurement information and photometry information, and a focus lens (not shown) in the interchangeable lens unit 316 is obtained. And the movable diaphragm is driven.

  When the release switch 12 is fully pressed and S2 is turned on, the mirror driving unit 305 moves the quick return mirror 15 to the retracted position, starts the opening / closing operation of the shutter 320 by the shutter driving unit 306, and moves the image sensor 304. Drive to perform imaging operation.

  The mirror drive unit 305 and the shutter drive unit 306 are configured by a drive system using a DC motor, a stepping motor, an ultrasonic motor, or the like as a power source.

  When the imaging operation is started, the imaging device 304 converts the incident light into an electrical signal by photoelectric conversion, and then outputs the electrical signal to the CPU 302. The electrical signal output to the CPU 302 undergoes image conversion processing such as JPEG, and is recorded as image data in the external memory 315 inserted in the external memory slot 314. The image data in this embodiment conforms to a known Exif (Exchangeable Image File Format) file format. Further, the image data in the present embodiment is data in which image information is combined with imaging information such as exposure time and aperture value, and orientation and positioning information described later.

  The main body frame 321 reinforces the imaging device 1 from the inside and holds each component constituting the imaging device 1.

  The exterior 322 constitutes the external appearance of the imaging device 1 and protects each component constituting the imaging device 1.

The external strobe 323 is an example of an accessory attached to the accessory shoe 18 in this embodiment. The external strobe 323 is a known electronic flash as well as the built-in strobe 16.
The external strobe 323 incorporates an external strobe capacitor 324 and an external strobe power source 325 as power supply means for light emission.

  When the external strobe 323 is connected to the accessory shoe 18, the accessory detection switch 326 is turned on. When the accessory detection switch 326 is in the ON state, the external strobe 323 is set to be used preferentially as the light emitting means during imaging.

  When the external strobe 323 is attached to the image pickup apparatus 1, the external strobe capacitor 324 is supplied with power from the external strobe power source 325 based on an instruction from the CPU 302 via the accessory shoe 18, and accumulates charges (charge). I do.

  When an imaging instruction is issued from the user, the external strobe capacitor 324 discharges and causes the external strobe light emitting unit 327 to emit light.

  FIG. 4 is a diagram illustrating an example of the azimuth operation of the imaging apparatus 1 according to the embodiment of the present invention. 4A is a top view of the imaging apparatus 1, and FIG. 4B is a rear view of the imaging apparatus 1. FIG. The imaging apparatus 1 can detect geomagnetism by the geomagnetic sensor 311, detect which direction the imaging direction of the imaging apparatus 1 is oriented, and display the orientation on the image display unit 22 in real time.

  An imaging operation flow of the imaging apparatus 1 according to the present invention will be described with reference to FIG. In this embodiment, it is assumed that the external strobe 323 emits light during imaging.

  When the user operates the main switch 23 and the imaging apparatus 1 is turned on (step S501), the geomagnetic sensor 311 detects the orientation of the imaging direction of the imaging apparatus 1 (step S502), and the image display unit 22 The orientation detection result is displayed (step S503). Subsequently, the external strobe capacitor 324 is charged (step S504).

  Subsequently, when the release switch 12 is half-pressed by the user (step S505), the distance measurement unit 307 and the photometry unit 308 are driven to start distance measurement and photometry (step S506). Based on the distance measurement and photometry information in step S506, the CPU 302 calculates imaging conditions such as the focus lens position, aperture value, exposure time, and strobe emission amount (step S507). Subsequently, based on the distance measurement information in step S506, the lens driving unit 317 drives the focus lens (step S508).

  When the release switch is fully pressed by the user and an instruction to start imaging is issued (step S509), the mirror drive unit 305 performs the up operation of the quick return mirror 15 (step S510). Subsequently, in order to create information to be added to the captured image, orientation detection is performed by the geomagnetic sensor 311 (step S511) and positioning is started by the GPS antenna 312 (step S512).

  Subsequently, based on the imaging condition calculated in step S507, the aperture of the interchangeable lens unit 316 is driven (step S513), and the shutter 320 starts to travel (step S514).

  Subsequently, the external strobe capacitor 324 is discharged (step S515), and the external strobe light emitting unit 327 is caused to emit light (step S516).

  Subsequently, light accumulation is started by the image sensor 304 (step S517), and the light is accumulated until the travel of the shutter 320 is completed (step S518).

  Subsequently, the mirror drive unit 305 performs a down operation of the quick return mirror 15 (step S519).

  Subsequently, image processing (step S520) is performed by the CPU 302, and then calculation of the azimuth at the time of imaging (step S521) from the azimuth information obtained by the geomagnetic sensor 311 and positioning information obtained from the GPS antenna 312. Latitude / longitude is calculated (step S522).

  Subsequently, imaging information to be added to the image is created (step S523). The imaging information includes the imaging azimuth at the time of imaging of the imaging device 1 calculated in step S521, and the latitude / calculation calculated in step S522. Longitude information is given.

  The captured image and the imaging information created in step S523 are combined (step S524), and the image data is transferred and stored in the external memory 315 (step S525). If the main switch 23 is turned off by the user, when the imaging is finished and the imaging is continued, the process returns to step S502 again and the imaging operation is performed again.

  In step S503, the imaging azimuth is detected. In step S504, the imaging azimuth is displayed in real time. In step S508, the lens driving unit 317 operates to drive the focus lens. As described above, the lens driving unit 317 is configured by a driving system using a DC motor, a stepping motor, an ultrasonic motor, or the like as a power source, and generates a magnetic field by driving. The generation of this magnetic field affects the imaging orientation detection in step S503. For this reason, in order to accurately detect the imaging azimuth in step S503, it is necessary to avoid the influence of the magnetic field generated by driving the lens driving unit 317.

  Similarly, in the detection of the imaging direction at the time of imaging in step S511, the external strobe capacitor 324 is discharged for strobe light emission. In addition, since a large amount of electric charge is instantaneously discharged, a strong magnetic field is generated around the external strobe capacitor 324, which prevents the geomagnetic sensor 311 from detecting the direction. Therefore, in order to accurately detect the imaging direction in step S511, it is necessary to avoid the influence of the magnetic field generated by the external strobe capacitor 324.

  The interchangeable lens unit 316 has various specifications for the focal length and F value, and accordingly, the intensity of the magnetic field generated by the lens driving unit 317 also varies. The external strobe 323 differs in the strength of the magnetic field generated by the discharge from the external strobe capacitor 324 depending on the guide number. Therefore, the degree of the magnetic field intensity generated by the interchangeable lens unit 316 and the external strobe 323 is difficult to grasp unlike the components built in the imaging apparatus 1. Therefore, in order to avoid the influence of the magnetic field generated by the interchangeable lens unit 316 and the external strobe 323, the geomagnetic sensor 311 needs to be arranged at a position as far as possible from the interchangeable lens unit 316 and the external strobe 323.

  FIG. 6 is a diagram illustrating the inside of the imaging apparatus 1 according to the embodiment of the present invention. 6A is a top view of the imaging apparatus 1, and FIG. 6B is a side view of the imaging apparatus 1. FIG. In addition, the part which is common in the above-mentioned drawing is shown with the same symbol.

  The geomagnetic sensor 311 is arranged as far as possible from the lens driving unit 317 in order to avoid the generation of a magnetic field due to the driving of the lens driving unit 317 and to prevent the imaging azimuth detection in step S503 of FIG. To do.

  Since the imaging device 1 is provided with the grip portion 11 on one side divided by the optical axis 318, the volume on the side where the grip portion 11 is present is larger. Therefore, as shown in FIG. 6A, the interchangeable lens unit 316 and the geomagnetic sensor 311 are separated from each other by disposing the geomagnetic sensor 311 on the side where the grip portion 11 is present in the region where the imaging device 1 is divided by the optical axis 318. It becomes possible.

  Further, the interchangeable lens unit 316 and the geomagnetic sensor 311 are further arranged apart by disposing the geomagnetic sensor 311 in one of the regions divided into the main body frame 321 of the imaging device 1 and the mount 13 in the other region. It becomes possible.

  In order to avoid the generation of a magnetic field due to the instantaneous discharge of the strobe capacitor and to detect the imaging direction in step S511 of FIG. 5, the geomagnetic sensor 311 needs to be arranged at a position farthest from the external strobe capacitor 324.

  The external strobe 323 is attached on the accessory shoe 18, which is the highest position of the imaging device 1, so that the light emission of the strobe is not shielded by the interchangeable lens unit 316.

  Therefore, as shown in FIG. 6B, the geomagnetic sensor 311 and the external strobe capacitor 324 can be arranged separately by disposing the geomagnetic sensor 311 in the lower region divided by the optical axis 318 of the imaging device 1. It becomes.

  In order to improve the number of images that can be taken and the continuous drive time, the power source 309 needs to be as large as possible. Therefore, the power source 309 is disposed in the grip 11 having a large volume in the imaging device 1. On the other hand, since the power supply 309 also periodically passes a current, a magnetic field is generated with a constant intensity.

  Compared to a sudden change in the magnetic field such as the focal lens driving of the interchangeable lens unit 316 or the instantaneous discharge of the external strobe capacitor 324 when the external strobe 323 emits light, the influence is small, but the influence on the direction detection of the geomagnetic sensor 311 is not. is there.

  Further, as shown in FIG. 6, if the power supply 309 is arranged in the grip portion 11 of the imaging device 1, the distance from the geomagnetic sensor 311 becomes short, so it is necessary to avoid the influence of the power supply 309 on the geomagnetic sensor 311. .

  Therefore, the influence of the magnetic field generated by the power supply 309 can be avoided by disposing the external memory slot substrate 310 between the power supply 309 and the geomagnetic sensor 311 and isolating the power supply 309 and the geomagnetic sensor 311.

  By arranging the geomagnetic sensor 311 as described above, it is possible to avoid the influence from an interchangeable lens, an external strobe, and a power source that generate a disturbance magnetic field during an imaging operation without increasing the size of the imaging device. Azimuth detection is possible.

  In the first embodiment, the arrangement of the geomagnetic sensor 311 for avoiding the influence of the magnetic field generated by the interchangeable lens unit 316 and the external strobe 323, which is replaceably attached to the imaging device 1, has been described. In the second embodiment, the arrangement of the geomagnetic sensor 311 in consideration of the influence of a magnetic field generated by a component built in the imaging apparatus 1 will be described.

  In the present embodiment, a case where the built-in flash 16 emits light in the imaging operation flow of FIG. 5 will be described. In step S502, the built-in strobe capacitor 313 is charged. In step S515, the built-in strobe capacitor 313 is discharged. In step S516, the built-in strobe capacitor 16 emits light.

  In the case of the imaging operation flow in the second embodiment, the generation of a magnetic field due to the operation of the lens driving unit 317 in step S508 is an element that affects the direction detection of the geomagnetic sensor 311. In addition, there are the operation of the mirror drive unit 305 in steps S510 and S519, the operation of the shutter drive unit in steps S514 and S518, and the generation of a magnetic field due to the discharge of the built-in strobe capacitor 323 in step S515.

  The arrangement of the geomagnetic sensor 311 for avoiding the influence of the magnetic field generated during the imaging operation will be described with reference to FIG. FIG. 7 is a diagram illustrating the inside of the imaging apparatus 1 according to the second embodiment. In addition, the part which is common in the above-mentioned drawing is shown with the same symbol.

  As in the first embodiment, in order to avoid the influence of the magnetic field of the lens driving unit 317 in step S508, when the imaging device 1 is divided by the optical axis 318, the geomagnetic sensor 311 is disposed on the side where the grip unit 11 is present, thereby obtaining an interchangeable lens Separate from unit 316 as much as possible. By disposing the geomagnetic sensor 311 outside the projection surface of the mount 13, it can be disposed at a position further away from the interchangeable lens unit 316.

  Further, the interchangeable lens unit 316 and the geomagnetic sensor 311 are further arranged apart by disposing the geomagnetic sensor 311 in one of the regions divided into the main body frame 321 of the imaging device 1 and the mount 13 in the other region. It becomes possible.

  In order to avoid the influence of the magnetic field generated from the mirror driving unit 305 in step S510 and step S519, the geomagnetic sensor 311 is disposed in one of the regions delimited by the main body frame 321 of the imaging device 1, and mirror driving is performed in the other region. The unit 305 is arranged.

  Thus, by isolating the geomagnetic sensor 311 from the mirror driving unit 305 by the main body frame 321, it is possible to avoid the geomagnetic sensor 311 from being affected by the magnetic field generated from the mirror driving unit 305.

  In order to avoid the influence of the magnetic field generated from the shutter driving unit 306 in step S514 and step S518, the geomagnetic sensor 311 is disposed in one of the regions delimited by the main body frame 321 of the imaging device 1, and the shutter is driven in the other region. The unit 306 is arranged.

  Thus, by isolating the geomagnetic sensor 311 from the shutter drive unit 306 by the main body frame 321, it is possible to avoid the geomagnetic sensor 311 from being affected by the magnetic field generated from the shutter drive unit 306.

  In order to avoid the influence of the magnetic field generated from the built-in strobe capacitor 313 in step S515, the geomagnetic sensor 311 is arranged in one of the regions delimited by the optical axis 318 of the imaging device 1, and the built-in strobe capacitor 313 is installed in the other region. Deploy.

  Thus, by distributing the geomagnetic sensor 311 and the built-in strobe capacitor 313 to the region divided by the optical axis 318, it is possible to avoid the geomagnetic sensor 311 from being affected by the magnetic field generated by the discharge of the built-in strobe capacitor 313.

  As described above, by arranging the geomagnetic sensor 311, it is possible to avoid the influence from the built-in components of the imaging device 1 that generates a disturbance magnetic field during the imaging operation without increasing the size of the imaging device. Is possible.

  As mentioned above, although preferable embodiment of this invention was described, this invention is not limited to these embodiment, A various deformation | transformation and change are possible within the range of the summary.

1 imaging device, 13 mount, 17 accessory shoe, 309 power supply,
310 External memory slot mounting substrate, 311 geomagnetic sensor,
314 External memory slot, 316 interchangeable lens unit, 318 optical axis,
321 Body frame, 323 External strobe

Claims (5)

The geomagnetism detecting means (311) is arranged in one area divided by the main body frame (321), and the interchangeable lens (316) is detachable in the other area divided by the main body frame (321). Mount (13) is placed,
The geomagnetism detecting means (311) is arranged in one area divided by the imaging optical axis (318), and an external accessory (323) is arranged in the other area divided by the imaging optical axis (318). An accessory mounting portion (18) that is replaceably mounted is disposed,
The geomagnetism detecting means (311) is arranged in an area divided by the imaging optical axis (318), on the side where the power source (309) and the external memory slot (314) are arranged,
The imaging device (1), wherein the geomagnetism detecting means (311) is separated from the power source (309) by a substrate (310) on which an external memory slot is mounted.   The geomagnetism detecting means (311) is arranged in one area divided by the main body frame (321), and the mirror driving means (305) is arranged in the other area divided by the main body frame (321). The imaging device (1) according to claim 1, characterized in that:   The geomagnetism detecting means (311) is arranged in one area divided by the main body frame (321), and the shutter driving means (306) is arranged in the other area divided by the main body frame (321). The imaging device (1) according to claim 1, characterized in that:   The geomagnetism detecting means (311) is arranged in one area divided by the imaging optical axis (318), and in the other area divided by the imaging optical axis (318), a flash light emitting capacitor (313). The imaging device (1) according to claim 1, characterized in that is arranged.   The imaging device (1) according to claim 1, wherein the geomagnetism detection means (311) is arranged outside a projection surface of a mount (13) to which the interchangeable lens (316) can be attached and detached.