JP2019184740A - Imaging device - Google Patents

Abstract

To reduce an impact of noise from other control units during radio communication in an imaging device having a radio communication function.SOLUTION: An imaging device includes: a housing having an opening; a camera unit including a lens and an imaging element, disposed inside the housing, and for imaging an outside subject from the opening; a telecommunication member disposed inside the housing and connecting a control board for controlling the camera unit and an imaging element board mounting at least the imaging element of the camera unit; and a communication antenna at least part of which is disposed in a gap between the camera unit and the inner rim of the opening when viewed from the axial direction of the camera unit at a position substantially symmetrical with the telecommunication member across the lens.SELECTED DRAWING: Figure 7

Description

  The present invention relates to an imaging apparatus, and more particularly to an imaging apparatus having a wireless communication function.

  Some imaging apparatuses transfer captured images to a medium for image browsing simply by a wireless communication function instead of a wired communication function with wiring of devices. Such an imaging apparatus includes a main board that controls the configuration related to imaging, and a wireless communication board that wirelessly communicates data such as images.

  As an imaging device including an antenna for wireless communication, for example, there is a camera having a wireless communication function described in Patent Document 1. According to the description of Patent Document 1, in this camera, a wireless communication board on which a wireless communication circuit and a grounded antenna are mounted is disposed in a metal cover, and the antenna is grounded through the metal cover. . An opening for projecting the antenna is formed on a predetermined surface of the metal cover. And the main board which controls a liquid crystal monitor, a flash device light emission part, etc. is electrically connected with a wireless communication circuit via a connector.

JP 2007-60237 A

  In the conventional configuration exemplified in Patent Document 1, the wireless communication antenna is disposed adjacent to the main board due to space limitations in the metal cover and the like. For this reason, for example, noise or the like generated when operating the light emitting unit of the flash device may be transmitted to the wireless communication antenna and affect data communication.

  The present invention has been made in view of such a situation, and an object thereof is to provide an imaging apparatus in which the influence of noise from other control units during wireless communication is reduced.

In view of the above problems, an imaging device according to one embodiment of the present invention is provided.
A housing having an opening;
A camera unit that includes a lens and an image sensor, and that is disposed within the housing and images an external subject from the opening;
A telecommunication member that is disposed within the housing and connects a control board that controls the camera unit and an image sensor substrate on which at least the image sensor of the camera unit is mounted;
A communication antenna that is at least partially disposed in a gap between the camera unit and the inner edge of the opening when viewed in the optical axis direction of the camera unit at a position that is substantially symmetrical with the telecommunication member across the lens; It is characterized by providing.

  ADVANTAGE OF THE INVENTION According to this invention, the imaging device which reduced the influence of the noise from the other control part at the time of radio | wireless communication can be provided.

1 is an external perspective view of an imaging apparatus according to an embodiment of the present invention. 1 is an exploded perspective view of an imaging apparatus according to an embodiment of the present invention. 1 is an exploded perspective view of a camera unit of an imaging apparatus according to an embodiment of the present invention. The perspective view of the camera part of the imaging device concerning one embodiment of the present invention. The perspective view of the radio | wireless communication part of the imaging device concerning one Embodiment of this invention. 1 is a perspective view of a lower housing unit of an imaging apparatus according to an embodiment of the present invention. The top view of an imaging device except an upper case unit when the camera part of the imaging device concerning one embodiment of the present invention rotates. Sectional drawing of the imaging device concerning one Embodiment of this invention 1 is an exploded perspective view of an upper housing unit of an imaging apparatus according to an embodiment of the present invention. The top view of an imaging device at the time of removing nonmetallic parts other than the camera part of the imaging device concerning one embodiment of the present invention.

  Hereinafter, exemplary embodiments for carrying out the present invention will be described in detail with reference to the accompanying drawings. However, dimensions, materials, and relative positions of components described in the following embodiments are arbitrary, and can be changed according to the configuration of the apparatus to which the present invention is applied or various conditions. In addition, the same reference numerals are used in the drawings in order to indicate the same or functionally similar elements.

  First, an overall configuration of an imaging apparatus according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. 1 is an external perspective view of the imaging apparatus, and FIG. 2 is an exploded perspective view. An imaging apparatus 100 according to an embodiment of the present invention is configured by assembling a lower housing unit 400 and an upper housing unit 500, and is installed on a ceiling or wall surface of a building via an unillustrated installation component. Is done. The lower housing unit 400 is assembled with a camera unit 200 and a wireless communication unit 300 described later. The configuration assembled to these lower casing units 400 will be described in detail below.

  With reference to FIGS. 3 and 4, the configuration of the camera unit 200 described above will be described. 3 is an exploded perspective view of the camera unit 200, and FIG. 4 is a perspective view of the camera unit 200 alone. A camera unit 200 including a photographing optical system photographs a subject and generates a video signal. The camera unit 200 includes a lens barrel part 210, a holder member 220, a lens barrel part cover member 230, a first telecommunication member 240, and a second telecommunication member 250. The holder member 220 fixes and supports the lens barrel part 210. The lens barrel cover member 230 is fixed to the holder member 220 so as to cover the lens barrel 210.

  The lens barrel section 210 includes a plurality of fixed lenses (not shown), and includes an electrically controlled aperture unit (not shown), an imaging element 211, an imaging element substrate 212, an imaging element substrate holding member 213, and the like. A CMOS sensor or the like is used for the image sensor 211. The image sensor 211 is mounted on the image sensor substrate 212, and the image sensor substrate 212 is fixed to the image sensor substrate holding member 213. In FIG. 3, a part of the method for assembling the plurality of fixed lenses, the aperture unit, the image sensor substrate 212, and the image sensor substrate holding member 213 to the lens barrel portion 210 is not shown. In the present embodiment, the lens barrel portion 210 includes only a fixed lens. However, the types of included lenses are not limited to this. For example, a movable lens or a movable lens group that performs zoom adjustment and focus adjustment may be included.

  The holder member 220 is a substantially cylindrical member formed with a boss for fixing the lens barrel part 210 described above, and holds the lens barrel part 210. The holder member 220 further includes a flange portion 221 formed to include a plurality of sliding surfaces 221a and 221b and a gap 221c. In addition, a plurality of bosses 222 that protrude toward the outer diameter of the cylinder and have SR convex portions 222a on the bottom surface are provided on the end surface of the substantially cylindrical shape on the side of the lens barrel portion 210. In the present embodiment, SR convex portions are formed on the bottom surfaces of the plurality of bosses 222, but the bottom surface shape of the bosses 222 is not limited thereto, and may be a surface having no convex shape, for example.

  The lens barrel cover member 230 is a substantially cylindrical member having an opening for exposing the front lens of the lens barrel 210 through which the lens barrel 210 and the holder member 220 are inserted. The lens barrel cover member 230 has a flange portion 231 that protrudes to the outer diameter side. Clamp-shaped portions 231a and 231b and a bospin 231c are formed on the flange portion 231.

  The first electric communication member 240 transmits a signal for electric control of the lens barrel 210, for example, an electric signal for control of the aperture unit and the like. In the present embodiment, the first telecommunication member 240 is configured as an FPC (flexible printed circuit board), for example. The first telecommunication member 240 includes a free end portion (not shown), a fixed end portion 241, and a tongue side portion 242. The free end is fixedly connected to an electrically controlled throttle unit or the like. Further, there are a plurality of tongue sides 242, which are formed between the free end portion and the fixed end portion 241 so as to protrude beyond the board width (the width of the flexible printed board) of these portions.

  The first telecommunication member 240 is fixedly connected to the diaphragm unit or the like so as to protrude to the outer diameter side of the lens barrel portion 210, the holder member 220, and the lens barrel portion cover member 230. Thereafter, the first telecommunication member 240 is wound around along the flange portion 231 of the lens barrel portion cover member 230, and the tongue portion 242 is clamped to the clamp-shaped portion 231a of the lens barrel portion cover member 230. By being assembled in this way, the first telecommunication member 240 is bent so that the width direction thereof substantially coincides with the axial direction of the lens barrel portion cover member 230.

  The second telecommunication member 250 transmits the video signal acquired by the image sensor 211. In the present embodiment, the second telecommunication member 250 is configured as an FPC (flexible printed circuit board), for example. The second telecommunication member 250 includes a free end 251, a fixed end 252, and a plurality of tongue sides 253 a and 253 b. The tongue sides 253a and 253b are formed so as to protrude from the free end portion 251 to the fixed end portion 252 more than the board width (width of the flexible printed board) of these portions. An engagement hole 253c is formed in the tongue side portion 253b.

  The second telecommunication member 250 is wound around the inner surface of the holder member 220 with the free end 251 connected to a connector (not shown) mounted on the image sensor substrate 212. Then, it protrudes to the outer diameter side of the lens barrel part 210, the holder member 220, and the lens barrel part cover member 230, and is assembled along the flange part 231 of the lens barrel part cover member 230. The tongue side portion 253b is clamped by the clamp-shaped portion 231b of the lens barrel portion cover member 230, and the engagement hole 253c is engaged with the boss pin 231c of the lens barrel portion cover member 230. By being assembled in this way, the second telecommunication member 250 is bent so that the width direction thereof substantially coincides with the axial direction of the lens barrel portion cover member 230.

  Next, the wireless communication unit 300 will be described with reference to FIG. The wireless communication unit 300 includes a communication antenna 310, a communication substrate 320, and a wireless communication unit holding member 330. The communication antenna 310 is used to radiate radio waves. A communication antenna 310 is mounted on the communication board 320, and the wireless communication unit holding member 330 holds the communication board 320.

  The communication antenna 310 includes a feeding point 311 and a main antenna range 312 and has an antenna length that matches the used radio band. The communication board 320 is electrically connected to another electric board by a flexible printed board (not shown) or the like. The wireless communication unit holding member 330 is a sheet metal member, and includes a flat surface portion 331 and a bent portion 332 extending from the flat surface portion 331. In the present embodiment, the wireless communication unit holding member 330 is a sheet metal member, but the mode is not limited thereto. For example, you may comprise from a metal shaping | molding member and provide a plane part and a bending part in this.

  The communication board 320 is fixed to the wireless communication unit holding member 330 with screws (not shown). At that time, the communication antenna 310 is arranged so that the flat surface portion 331 of the wireless communication unit holding member 330 is positioned immediately below the feeding point 311. Further, the main antenna range 312 is arranged so that the flat surface portion 331 of the wireless communication unit holding member 330 is not located immediately below the main antenna range 312. The bending portion 332 of the wireless communication unit holding member 330 has its tip (bending portion tip 332a) connected to the electrical ground. In the configuration state of the wireless communication unit 300, the bent portion 332 is configured such that the length from the feeding point 311 of the communication antenna 310 to the electric ground connection point of the bent portion tip 332a is greater than a quarter of the wireless wavelength. It is formed with an appropriate bending length.

  Next, the lower housing unit 400 will be described with reference to FIG. The lower housing unit 400 includes a lower housing 410, a control board 420, a base member 430, a guide member 440, an indirect biasing member 450 (see FIG. 2), and a biasing member 460 (see FIG. 2). As described above, the camera unit 200 and the wireless communication unit 300 are assembled to the lower casing unit 400.

  The lower housing 410 is configured as a substantially cylindrical part made of an electromagnetic shielding member, for example, a molded member made of metal such as aluminum or magnesium. In this cylindrical shape, the surface on the upper housing unit 500 side is open, and a small-diameter opening is formed on the side surface or the bottom surface for allowing a power supply or communication cable from the outside of the apparatus to pass through. A plurality of bosses for attaching various components are formed on the inner side of the bottom surface, including a boss 411 for connecting the bent portion tip 332a of the wireless communication unit holding member 330 described above to the electric ground.

  The control board 420 includes a video processing unit, a control unit for various systems of the apparatus, and a power supply circuit unit, and is fixed to the lower housing 410 with a fastening member such as a screw (not shown). The ground portion of the control board 420 is electrically connected to the lower housing 410 by the fastening member. For example, the control board 420 performs compression encoding processing on the acquired video signal and generates data to be distributed to various control devices outside the device. In addition, although the control board 420 in this embodiment shall be comprised with one board | substrate, it is not restricted to this. For example, the control board 420 may be composed of two or more boards.

  The base member 430 is a planar member that is fixed to the lower housing 410 with a screw (not shown) so as to cover the control board 420. A cylindrical portion 431 having a plurality of locking portions 431a at the tip is formed at the approximate center of the base member 430, and a plurality of ribs 431b and fitting holes 431c are formed around the cylindrical portion 431. Further, the first extending portion 432 and the second extending portion 433 are formed on the outer side of the cylindrical portion 431 as viewed in the axial direction of the cylindrical portion 431 so as to substantially face each other with the cylindrical portion 431 interposed therebetween. . The first extending portion 432 defines a plane that is shifted in the optical axis direction of the camera unit 200 and parallel to the plane on which the control board 420 fixed to the lower housing 410 extends. As will be described later, the communication antenna 310 and the communication substrate 320 are fixed on a plane defined by the first extending portion 432 as a protruding portion.

  The height of the first extension part 432 is set to be higher than the height of the bending part 332 of the wireless communication part holding member 330. The second extending portion 433 includes a side surface 433 a that is concentric with the cylindrical portion 431. In addition, an opening 434 through which the boss 411 of the lower housing 410 is inserted is formed in the base flat portion of the first extension portion 432. Further, a rib 435 is provided on the base flat portion of the second extending portion 433, and ribs 437 and 438 constituting a part of a concentric circle of the cylindrical portion 431 are formed on the upper surface of the rib 435.

  The guide member 440 has a box shape having an arc-shaped side surface such that the side surface 440 a substantially coincides with the side surface 433 a of the base member 430. On the upper surface of the guide member 440, ribs 441 and ribs 442 constituting a part of concentric circles of the cylindrical portion 431 are formed so as to substantially coincide with the ribs 437 and ribs 438 of the base member 430, respectively. Further, the guide member 440 is formed with a cylindrical portion 443 that fits inside the rib 435 of the base member 430. The guide member 440 is assembled by a well-known fastening means such as a screw (not shown) or snap-fit coupling in a state where the rib 435 of the base member 430 is fitted to the cylindrical portion 443 of the base member 430.

  Next, assembly of the camera unit 200 and the wireless communication unit 300 to the lower housing unit 400 will be described with reference to FIGS. 2, 6, 7, and 8. The camera unit 200 is assembled to the lower housing unit 400 via the indirect urging member 450 and the urging member 460 so as to be rotatable about the optical axis of the camera unit 200 (possible).

  The indirect biasing member 450 is formed of a ring-shaped sheet metal member provided with a plurality of tongue sides 451 and a shaft portion 452 fixed by crimping. The urging member 460 (for example, a compression coil spring) is assembled by being press-fitted into a rib portion 431 b provided around the cylindrical portion 431 of the base member 430. The indirect biasing member 450 inserts the shaft portion 452 into the fitting hole 431c of the base member 430 so that the biasing member 460 contacts the tongue side portion 451 of the indirect biasing member 450. The unit 400 is assembled.

  When the camera unit 200 is assembled, the SR convex portion 222 a of the boss 222 of the holder member 220 is brought into contact with the flat portion of the indirect biasing member 450. At this time, the rotation phase is set such that the phase of the gap 221c of the flange portion 221 of the holder member 220 and the locking portion 431a at the tip of the cylindrical portion 431 of the base member 430 coincide. Then, the holder member 220 is inserted into the cylindrical portion 431 so that the sliding surface 221 b of the holder member 220 slides with respect to the inner peripheral surface of the cylindrical portion 431. After the insertion, the camera unit 200 is rotated to a phase where the bottom surface of the locking portion 431a of the base member 430 and the sliding surface 221a of the holder member 220 slide. As a result, the camera barrel 200 is supported by the base member 430 so that the lens barrel 210 can rotate.

  The first telecommunication member 240 has a portion extending from the clamp-shaped portion 231 a of the lens barrel portion cover member 230. This portion is guided to a space between the rib 437 of the base member 430 and the rib 441 of the guide member 440 and the rib 438 of the base member 430 and the rib 442 of the guide member 440. And it arrange | positions along the rotation direction of the camera part 200 so that the bending part 243 may be formed. The fixed end 241 of the first telecommunication member 240 is connected to a connector (not shown) of the control board 420. As a result, the ground portion of each component that electrically controls the lens barrel portion 210 is also connected to the ground portion of the control board 420.

  The second telecommunication member 250 has a portion extending from the clamp-shaped portion 231 b of the lens barrel portion cover member 230. This portion is guided to a space sandwiched between the outer peripheral side surface of the cylindrical portion 431 of the base member 430 and the side surface 440a of the guide portion 440. And it arrange | positions along the rotation direction of the camera part 200 so that the bending part 254 may be formed. The fixed end 252 of the second telecommunication member 250 is connected to a connector (not shown) of the control board 420. Thereby, the ground part of each component controlled by the image sensor 211 and the like is also connected to the ground part of the control board 420.

  With this configuration, the camera unit 200 can be rotated with respect to the lower housing unit 400 even when the camera unit 200 and the lower housing unit 400 are electrically connected. it can. In this embodiment, for the rotation of the camera unit 200, a member (drive end member) (not shown) that defines the end of the rotation drive so as not to rotate more than necessary is a lower housing. The body unit 400 is provided. Moreover, the length of the 1st telecommunication member 240 and the 2nd telecommunication member 250 is also set together with this drive end member. Specifically, when the camera unit 200 is rotated to the drive end member, the bent portions 243 and 254 are respectively connected to the clamp-shaped portions 231a and 231b of the lens barrel portion cover member 230 and the fixed end portions 241 and 252 side. The length and bending position are set so as not to exceed.

  The wireless communication unit 300 is preferably arranged so that the communication antenna 310 faces the cylindrical portion 431 of the base member 430. Therefore, the flat surface portion 331 of the wireless communication unit holding member 330 is placed on the upper surface of the first extending portion 432 of the base member 430 so as to be in this direction, and the wireless communication unit 300 is not attached to the base member 430 in this state. It is fixed with the illustrated screw. Further, the bending portion tip 332 a of the wireless communication unit holding member 330 is fixed to the boss 411 of the lower housing 410 with a screw (not shown). Thereby, the feeding point 311 of the communication antenna 310 is connected to the electrical ground of the apparatus.

  For example, the camera unit 200 performs the above-described rotation operation for adjusting the angle of view after the imaging apparatus 100 is installed. In this case, for example, the camera unit 200 includes a positive end position (FIG. 7a), a negative end position (FIG. 7c), and a rotation position (for example, an intermediate position (FIG. 7a)). 7b)).

  As shown in FIG. 7, according to the present embodiment, when viewed from the rotational axis direction of the camera unit 200, the bent portions 243 and 254 of the two telecommunication members 240 and 250 are for communication with the lens barrel portion 210 interposed therebetween. The antenna 310 is disposed substantially opposite. Accordingly, the first telecommunication member 240 and the second telecommunication member 250 and the communication antenna 310 can be sufficiently separated. As a result, it is possible to reduce the influence of noise and the like of the first telecommunication member 240 and the second telecommunication member 250 on the wireless communication unit 300. In addition, since the wireless communication unit 300 is fixed to the first extension 432 of the base member 430, the control board 420 and the communication antenna 310 can be sufficiently separated. As a result, it is possible to reduce the influence of noise or the like of the control board 420 on the wireless communication unit 300.

  The configuration of the upper housing unit 500 will be described with reference to FIGS. In order to facilitate understanding of the structure of the upper housing unit 500, the structure is shown upside down. The upper housing unit 500 includes an upper housing 510, a dome cover 520, and a holding member 530. The upper housing 510 is a substantially cylindrical part made of an electromagnetic shielding member, for example, a molded member made of metal such as aluminum or magnesium. A cylindrical lower surface facing the lower housing unit 400 is open, and a circular opening 511 for light guide is provided on the upper surface. The lower housing 410 to which the camera unit 200 is attached is provided on the upper surface. The camera unit 200 is fixed so as to cover it. An inner diameter of the opening 511 of the upper housing 510 is set to be larger than a half wavelength of the radio wave wavelength of the radio communication unit 300. In addition, this inner diameter is such that a part of the communication antenna 310 of the wireless communication unit 300 can be visually recognized when the upper housing unit 500 and the lower housing unit 400 are assembled in the rotational axis direction of the camera unit 200. Is set to

  The dome cover 520 is formed of a non-electromagnetic shielding material such as a transparent or translucent resin member. The dome cover 520 includes a spherical curved convex portion 521 and a flange portion 522. The holding member 530 is a ring-shaped member and is formed of, for example, a sheet metal, and includes a notch 531 on the inner diameter side. The notch 531 is arranged so that the communication antenna 310 of the wireless communication unit 300 can be seen when the upper housing unit 500 and the lower housing unit 400 are assembled in the rotational axis direction of the camera unit 200. And the size is determined. The holding member 530 sandwiches the dome cover 520 with the upper housing 510 and is fixed to the upper housing 510 with a fastening member such as a screw (not shown).

  With this configuration, it is possible to radiate radio waves to the outside without causing the communication antenna 310 of the wireless communication unit 300 to protrude from the outer shape of the lower housing unit 400 and the upper housing unit 500. Become. Therefore, for example, even if the wireless communication antenna is not projected from the metal exterior casing as in the conventional configuration exemplified in Patent Document 1, the gap between the camera unit 200 and the opening 511 is provided. Sufficient wireless communication function can be secured. Therefore, according to the imaging apparatus according to the present embodiment, not only the influence of noise from other control units during wireless communication can be reduced, but also an antenna-exterior cover for providing a wireless communication function is not required. And can. Therefore, it is possible to optimize the arrangement of the internal configuration of the apparatus without considering the arrangement of the antenna, and it is possible to prevent an increase in the size of the device and the increase in the number of parts for obtaining a desired wireless communication function.

  As described above, the imaging apparatus according to the embodiment of the present invention includes the housing (410, 510) having the opening 511, the camera unit 200, the telecommunication members (240, 250), and the communication antenna. 310. The casing has electromagnetic shielding properties. In this embodiment, the casing is separated into an upper casing 510 and a lower casing 410, but each component accommodated in the casing can be accommodated. If there is, it may be composed of a single unit or may be separated into a further number of configurations. In this embodiment, a metal material is used as a material for the housing. However, the housing may be configured using another known material such as a resin from the viewpoint of weather resistance, workability, cost, and the like. Good. When the upper and lower parts are separated as in the present embodiment, the control board 420 is fixed to the lower housing 410, and the camera unit 200 is preferably installed to be rotatable around the optical axis of the camera unit 200. In this case, the upper casing 510 is preferably fixed to the lower casing 410 so as to cover the camera unit 200 and provided with an opening 511. Further, the opening 511 is covered with a cover member (520) that has translucency and does not have electromagnetic shielding properties from the viewpoint of protection of the camera unit 200 such as a lens and the viewpoint of transmission of radio waves. Good. In the above description, the divided housings are distinguished as an upper side and a lower side, but the upper and lower sides are distinguished for convenience and do not intend a specific arrangement. Therefore, it is desirable to grasp these configurations as the first casing and the second casing, respectively.

  In the present embodiment, the camera unit 200 includes a lens (single unit or plural units) and an image sensor 211, and is disposed in the lower housing 410 so as to be rotatable around the optical axis of the camera unit 200. An external subject is imaged from the opening 511. Moreover, the 1st telecommunication member 240 and the 2nd telecommunication member 250 are illustrated by this embodiment as a telecommunication member. However, the telecommunication members are not limited to these, and various telecommunication members including at least a telecommunication member that connects the control board 420 that controls the camera unit 200 and the imaging element 211 of the camera unit 200 may be included. In the present embodiment, the camera unit 200 is rotatable around the optical axis, but may be configured not to rotate depending on the degree of freedom during installation, the purpose of use, and the like.

  In the present embodiment, the communication antenna 310 is disposed in the lower housing 410 at a position that is substantially symmetric with the telecommunication members (240, 250) across the lens included in the camera unit 200. Thereby, as above-mentioned, the influence of the noise from the other control part at the time of radio | wireless communication can be reduced. In the present embodiment, since the camera unit 200 can be rotated about its optical axis, the communication antenna 310 and the telecommunication members (240, 250) may be arranged symmetrically in a strict sense. In this case, it is assumed that the device is used off of its position by rotation. Therefore, the positional relationship between the communication antenna 310 and the telecommunication members (240, 250) includes a range in which the rotation range of the camera unit 200 is considered and the rotation range is taken into consideration with a strict symmetry position as a center. Thus, it is preferable to be understood as being substantially symmetrical. Further, at least a part of the communication antenna 310 is disposed in a gap between the camera unit 200 and the inner edge of the opening 511 when viewed in the optical axis direction of the camera unit 200. By arranging the communication antenna 310 in this way, it is possible to perform communication from an area where there is no electromagnetic shielding member and where a non-electromagnetic shielding member protecting the lens or the like is arranged. Become.

  In the present embodiment, the telecommunication members (240, 250) are formed of a flexible printed circuit board or a thin coaxial cable as a flexible member. The second telecommunication member 250 which is an example of the telecommunication member includes a fixed end 252 connected to the control board 420 and a free end 251 connected to the image sensor 211 via the image sensor board 212, for example. Have.

  Further, not all of the telecommunication members (240, 250) need to have flexibility. For example, only a region arranged in an arc around the rotation axis or the optical axis of the camera unit 200 may be a flexible portion having flexibility. In addition, the camera unit 200 is supported by a base member 430 so that the lens barrel (the lens barrel unit 210) can rotate. The base member 430 may have a rib (437, 438) for guiding a bent portion or the like in the flexible portion or the telecommunication member (240, 250). By providing such ribs (437, 438), interference with the flexible portion of other members can be suppressed and smooth operation of the flexible portion can be assisted.

  Further, the imaging apparatus according to the present embodiment includes a communication substrate 320 on which the communication antenna 310 described above is mounted. Similarly to the communication antenna 310, the communication substrate 320 is also arranged in the lower casing 410 at a position that is substantially symmetric with the telecommunication members (240, 250) across the lens included in the camera unit 200. Good. Thereby, the influence of noise from other control units during wireless communication can be further reduced. The base member 430 described above includes a protruding portion (432) in the present embodiment, and the protruding portion (432) has a plane that is shifted in the optical axis direction of the camera unit 200 from the plane on which the control board 420 is disposed. Stipulate. The communication substrate 320 and the communication antenna 310 are fixed to the protruding portion (432). As a result, each member for communication is sufficiently isolated from the control board 420 not only in the optical axis direction but also in the optical axis direction in the housing (400, 500). The influence of noise from the part can be further reduced.

  As described above, the ground portion of the communication substrate 320 is fixed to the boss 411 of the lower housing 410 with the bending portion tip 332a of the wireless communication portion holding member 330 by a screw (not shown) or the like. As a result, the feeding point 311 of the communication antenna 310 is electrically connected to the electrical ground of the imaging apparatus, that is, the lower housing 410 as the ground portion of the communication board 320. The ground portion of the image pickup device substrate 212 is also electrically connected to the lower housing 410 via the control substrate 420, whereby the ground portion of the communication substrate 320 is connected to the case (400, 500) and the image pickup device. It is electrically connected to each of the substrates 212.

  In addition, as described above, the opening 511 may have a circular shape having an opening diameter equal to or larger than a half wavelength of the radio wave transmitted from the communication antenna 310. By configuring the opening 511 in this way, a more desirable communication function can be ensured. For the same reason, it is desirable to consider the region connecting the point on the communication antenna 310 to the opening 511. That is, at least a part of a cross section orthogonal to the optical axis direction of the camera unit 200 in the region that does not include the electromagnetic shielding member in the region is equal to or more than a half wavelength of the radio wave transmitted from the communication antenna 310. Length is good.

  As mentioned above, although this invention was explained in full detail with reference to the suitable embodiment, this invention is not limited to these specific embodiment. Various forms such as an invention modified within a range not departing from the gist of the present invention and an invention equivalent to the present invention are also included in the present invention. Moreover, a part of embodiment mentioned above may combine suitably in the range which is not contrary to the meaning.

200 ... camera part 210 ... lens barrel part 240 ... first telecommunication member 250 ... second telecommunication member 310 ... communication antenna 320 ... communication board 330 ... wireless communication part holding member 410 ... Lower casing 420 ... Control board 430 ... Base member 432 ... First extension 510 ... Upper casing 511 ... Opening

Claims (11)

A housing having an opening;
A camera unit that includes a lens and an image sensor, and that is disposed within the housing and images an external subject from the opening;
A telecommunication member that is disposed within the housing and connects a control board that controls the camera unit and an image sensor substrate on which at least the image sensor of the camera unit is mounted;
A communication antenna that is at least partially disposed in a gap between the camera unit and the inner edge of the opening when viewed in the optical axis direction of the camera unit at a position that is substantially symmetrical with the telecommunication member across the lens; An imaging apparatus comprising: The camera unit is rotatable around the optical axis,
The housing includes a first housing to which the control board is fixed and the camera unit is installed to be rotatable around the optical axis;
The imaging apparatus according to claim 1, further comprising: a second casing that is fixed to the first casing so as to cover the camera unit and is provided with the opening.   The said telecommunication member consists of a flexible member provided with the fixed end part connected to the said control board | substrate, and the free end part connected to the said image pick-up element board | substrate. The imaging device described in 1.   The imaging apparatus according to claim 3, wherein the flexible member is a flexible printed circuit board or a thin coaxial cable.   5. The imaging apparatus according to claim 1, wherein the telecommunication member includes a flexible portion arranged in an arc shape around an optical axis of the camera portion. A base member that rotatably supports the lens barrel of the camera unit;
The imaging device according to claim 5, wherein the base member includes a rib for guiding the flexible portion. A communication board on which the communication antenna is disposed;
The imaging according to any one of claims 1 to 6, wherein the communication substrate is disposed in a position that is substantially symmetrical with the telecommunication member with the lens interposed therebetween in the housing. apparatus. A protrusion that defines a plane that is displaced in the optical axis direction of the camera unit from a plane on which the control board is disposed;
The imaging apparatus according to claim 7, wherein the communication substrate and the communication antenna are fixed to the protruding portion.   The image pickup apparatus according to claim 7, wherein the ground portion of the communication substrate is electrically connected to each of the casing and the image pickup device substrate.   The imaging device according to claim 1, wherein the aperture has a circular shape having an aperture diameter equal to or greater than a half wavelength of a radio wave transmitted from the communication antenna.   The imaging device according to claim 1, wherein the opening is covered with a translucent cover member.

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