JP2020005246A - Imaging apparatus - Google Patents

Abstract

To provide an imaging apparatus capable of realizing an excellent image quality by disposing a communication antenna suitably.SOLUTION: An imaging apparatus (1) comprises housings (10, 20, 30, 40, 50, 60, 70, 80, 90), plural optical systems (A, B) held by the housings (10, 20, 30, 40, 50, 60, 70, 80, 90), and a communication antenna (110) held by the housings (10, 20, 30, 40, 50, 60, 70, 80, 90). The communication antenna (110) is disposed so as not be included in the maximum field angle light path of the optical systems (A, B).SELECTED DRAWING: Figure 14

Description

  The present invention relates to an imaging device.

  In electronic devices, metal materials may be used for exterior members in order to obtain robustness and luxury.For example, in digital cameras, exterior members made of magnesium alloy, which is excellent in strength and light weight, are increasingly used. . If an antenna for short-range wireless communication is arranged inside such a metal exterior member, the exterior member may adversely affect the communication performance, and a desired communication distance may not be achieved. As a countermeasure, if a large opening is formed in the exterior member so as not to cover the antenna, there is a problem that the robustness of the exterior member is impaired. Therefore, by supporting a communication antenna on the surface of the first outer layer member and covering the outside of the antenna with a second non-metallic outer layer member, the first outer layer member is robust without providing an antenna communication opening. It is conceivable to obtain a desired communication performance while ensuring the communication performance (for example, Patent Document 1).

  The present applicant combines two wide-angle lenses having an angle of view wider than 180 degrees and an imaging system having the same structure having an imaging sensor for imaging an image by the wide-angle lens, and forms an image captured by each imaging system. Have been filed and patents have been obtained for a spherical imaging system that obtains an image within a solid angle of 4π radians by synthesizing.

JP 2017-011659 A JP 2014-056048 A Japanese Patent No. 6019970

  However, in the omnidirectional imaging system described above, a technical problem is how and where to arrange a communication antenna for transmitting and receiving the acquired omnidirectional image signal and other various signals. For example, if the communication antenna is arranged inside the optical path of the maximum angle of view of each of the two wide-angle lenses, the communication antenna appears in the omnidirectional image (the omnidirectional image is shaken by the communication antenna). ).

  The present invention has been made based on the above awareness of problems, and an object of the present invention is to provide an imaging device capable of realizing excellent image quality by appropriately arranging communication antennas.

  The imaging device according to the present embodiment includes a housing, a plurality of optical systems held by the housing, and a communication antenna held by the housing, wherein the communication antenna includes the plurality of optical systems. Are arranged so as not to be included in the maximum angle-of-view optical path.

  The imaging device of the present embodiment includes a housing, a plurality of optical systems housed in the housing, a communication antenna housed in the housing, and a shutter button arranged on a surface of the housing. And a plurality of lenses arranged on the most object side of each of the plurality of optical systems are arranged between the communication antenna and the shutter button.

  ADVANTAGE OF THE INVENTION According to this invention, the imaging device which can implement | achieve excellent image quality by suitably arrange | positioning a communication antenna can be provided.

FIG. 1 is a diagram illustrating an external configuration of an imaging device according to an embodiment. It is the figure which looked at the wide-angle lens system and the imaging sensor held inside the housing | casing from the left. It is the figure which looked at the wide-angle lens system and the image sensor held inside the housing | casing from the back. It is the figure which looked at the wide-angle lens system and the imaging sensor hold | maintained inside the housing | casing from the upper part. FIG. 3 is an expanded view of a wide-angle lens system and an image sensor held inside a housing. It is a figure showing a sensor board and a transmission member held inside a case. FIG. 2 is a perspective view illustrating an overall configuration of a wireless module substrate. FIG. 3 is a perspective view showing a configuration in which an opening above a metal housing is covered with a resin housing. It is a perspective view which shows the connection structure of a rear metal housing and a rear resin housing. It is a 1st process figure which assembles a communication antenna and a connection resin housing | casing to the joined body of a front metal housing | casing and a front resin housing | casing. It is a 2nd process drawing of assembling a communication antenna and a connection resin housing to the combined body of a front metal housing and a front resin housing. FIG. 13 is a third process diagram of assembling the communication antenna and the connection resin housing to the combined body of the front metal housing and the front resin housing. FIG. 13 is a fourth process diagram of assembling the communication antenna and the connection resin housing to the combined body of the front metal housing and the front resin housing. FIG. 3 is a diagram illustrating a relationship between a maximum angle of view optical path of a wide-angle lens system and an arrangement of a communication antenna.

  The imaging device 1 according to the present embodiment will be described in detail with reference to FIGS. In the following description, the directions of front, rear, up, down, left, and right are based on the direction of the arrow shown in each drawing.

  As shown in FIGS. 1A to 1C, the imaging device 1 has a housing 10 in which the components of the imaging device 1 are assembled and holds (accommodates) these components. The housing 10 is short in the left-right direction, long in the up-down direction, and has a rounded upper surface. The housing 10 has a rear metal housing 20 and a front metal housing 30. The rear metal housing 20 and the front metal housing 30 are made of a relatively high-rigidity metal material (for example, magnesium alloy) as compared with a rear resin housing 70, a front resin housing 80, and a connection resin housing 90 described later. ).

  The rear metal case 20 and the front metal case 30 are connected by a left side connection case 40, a right side connection case 50, and a bottom surface connection case 60. The left side connection case 40, the right side connection case 50, and the bottom side connection case 60 can be made of the same metal material as the rear metal case 20 and the front metal case 30, for example. Has a degree of freedom, and various design changes are possible. A positioning boss (not shown) is formed on one of the rear metal housing 20 and the front metal housing 30, and a boss insertion hole is formed on the other of the rear metal housing 20 and the front metal housing 30. (Not shown) is formed, and by inserting the positioning boss into the boss insertion hole, the rear metal housing 20 and the front metal housing 30 are positioned in a state of approaching each other. The rear metal housing 20 and the front metal housing 30 have screw holes (not shown) on the left side surface, the right side surface, and the lower surface, which can be overlapped and fastened together in the above-described positioning state. A left-side connection case 40, a right-side connection case 50, and a bottom-side connection case 60 are fitted into gaps between the left side surface, the right side surface, and the lower surface between the rear side metal case 20 and the front side metal case 30, By screwing (tightening) the co-tightening screws (not shown) inserted into these, the rear metal housing 20, the front metal housing 30, the left side connection housing 40, and the right side connection housing 50 and the lower surface connection housing 60 are integrated. There are various degrees of freedom in integrating the rear metal housing 20, the front metal housing 30, the left-side connection housing 40, the right-side connection housing 50, and the lower-surface connection housing 60. Design changes are possible.

  A substantially circular lens exposure hole 21 is formed above the rear metal housing 20, and a substantially circular lens exposure hole 31 is formed above the front metal housing 30. A shutter button 22 for triggering imaging (still image capturing, moving image capturing) is provided slightly below the vertical middle portion of the rear metal housing 20. That is, the shutter button 22 is arranged on the surface of the rear metal housing 20 of the housing 10. A power button 51 for switching the power of the imaging apparatus 1 on and off is provided at an intermediate portion in the vertical direction of the right side connection housing 50. Below the power button 51, a shooting mode or a wireless connection mode is provided. Operation buttons 52, 53, and 54 for performing a setting operation are provided.

  In the combined body of the rear metal housing 20, the front metal housing 30, the left side connection housing 40, the right side connection housing 50, and the lower surface connection housing 60, a lower portion than a vertical middle portion constitutes a grip portion GP. are doing. The photographer can press and operate the shutter button 22, the power button 51, and the operation buttons 52 to 54 while holding the grip portion GP.

  The combined body of the rear metal housing 20, the front metal housing 30, the left side connection case 40, the right side connection case 50, and the lower surface connection case 60 has an opening OS whose upper part is opened. . The opening OS is filled with the rear resin housing 70, the front resin housing 80, and the connection resin housing 90. The detailed structure of the rear resin housing 70, the front resin housing 80, and the connection resin housing 90 (the mounting structure for the rear metal housing 20 and the front metal housing 30) will be described later in detail.

  As shown in FIGS. 2 to 4, two wide-angle lens systems (fish-eye lens system, optical system, imaging optical system) A and B arranged symmetrically with each other and two wide-angle lens systems Two image sensors AI and BI on which images A and B are formed are held (accommodated and accommodated). In FIGS. 2 to 4, the housing 10 is schematically depicted by a virtual line (two-dot chain line). The two wide-angle lens systems A and B and the imaging sensors AI and BI can have the same specifications. The wide-angle lens systems A and B have an angle of view wider than 180 degrees. The imaging device 1 can be a spherical imaging device that obtains an image within a solid angle of 4π radians by combining two images formed by the imaging sensors AI and BI.

  The wide-angle lens system A includes, in order from the object side to the image side, a negative front unit AF, a first prism (first optical path changing unit) AP1, a variable aperture stop AS, and a second prism (second An optical path changing unit) AP2, a positive rear unit AR, and a third prism (third optical path changing unit) AP3 are provided. The negative front group AF has a function of capturing light rays having a high angle of view larger than 180 °, and the positive rear group AR has a function of correcting aberrations of an image formed. The variable aperture stop AS is not shown in FIGS. 2 to 4 and is drawn only in the developed view of FIG.

  The negative front group AF emits the subject light beam entering from the front while diverging the subject light beam. The first prism AP1 reflects the subject luminous flux incident from the negative front group AF 90 ° to the left. The variable aperture stop AS adjusts the light transmission amount of the subject light beam reflected by the first prism AP1 (light amount adjustment). The second prism AP2 reflects the subject light flux whose light quantity is adjusted by the variable aperture stop AS downward by 90 °. The positive rear group AR emits downward while converging the subject light beam reflected by the second prism AP2. The third prism AP3 reflects the subject light beam incident from the positive rear group AR to the right by 90 ° to form an image on the imaging surface of the imaging sensor AI. On the emission surface of the third prism AP3, a convex surface AP3X protruding toward the imaging surface of the imaging sensor AI is formed. The negative front group AF and the positive rear group AR are each composed of a plurality of lenses as shown in FIG. 5 (AF and AR are shown as representative symbols in FIGS. 2 to 4).

  The wide-angle lens system B includes, in order from the object side to the image side, a negative front unit BF, a first prism (first optical path changing unit) BP1, a variable aperture stop BS, and a second prism (second An optical path changing unit) BP2, a positive rear unit BR, and a third prism (third optical path changing unit) BP3 are provided. The negative front unit BF has a function of capturing light rays having a high angle of view larger than 180 °, and the positive rear unit BR has a function of correcting aberrations of an image formed.

  The negative front group BF emits forward while diverging the subject light beam incident from behind. The first prism BP1 reflects the subject light beam incident from the negative front unit BF 90 ° to the right. The variable aperture stop BS adjusts the transmission amount of the subject light beam reflected by the first prism BP1 (light amount adjustment). The second prism BP2 reflects the subject light flux whose light amount is adjusted by the variable aperture stop BS downward by 90 °. The positive rear group BR emits downward while converging the subject light flux reflected by the second prism BP2. The third prism BP3 reflects the subject light beam incident from the positive rear unit BR to the left by 90 ° to form an image on the imaging surface of the imaging sensor BI. On the emission surface of the third prism BP3, a convex surface BP3X protruding toward the imaging surface of the imaging sensor BI is formed. The negative front group BF and the positive rear group BR are each composed of a plurality of lenses as shown in FIG. 5 (BF and BR are shown as representative symbols in FIGS. 2 to 4).

  In the imaging sensors AI and BI of the wide-angle lens systems A and B, the imaging surface of the imaging sensor AI faces left, the imaging surface of the imaging sensor BI faces right, and the back surface of the imaging sensors AI and BI (what is an imaging surface? Opposite sides) are supported back to back.

  FIG. 5 is an expanded view of the wide-angle lens systems A and B and the imaging sensors AI and BI. FIG. 5 ignores the directions of reflection by the first prism AP1 to the third prism AP3 and the first prism BP1 to the third prism BP3. Therefore, the configurations of the wide-angle lens systems A and B and the imaging sensors AI and BI in FIG. 5 are the same (common).

  The negative front units AF and BF include, in order from the object side, a negative meniscus lens L1 having a convex surface facing the object side, a negative meniscus lens L2 having a convex surface facing the object side, and a biconcave negative lens L3. I have.

  The positive rear units AR and BR include, in order from the object side, a biconvex positive lens L4, a positive meniscus lens L5 having a convex surface facing the object side, a biconvex positive lens L6, a biconcave negative lens L7, and a biconvex lens. It has a positive lens L8, a biconcave negative lens L9, and a biconvex positive lens L10. The biconvex positive lens L6 and the biconcave negative lens L7 are cemented. The biconvex positive lens L8 and the biconcave negative lens L9 are cemented.

  The configuration of the negative front group AF, BF and the positive rear group AR, BR described above is merely an example, and the configuration of the negative front group AF, BF and the positive rear group AR, BR is variously designed. Changes are possible. Further, the front groups AF and BF may have a positive power instead of a negative power, and the rear groups AR and BR may have a negative power instead of a positive power.

  In the imaging apparatus 1 configured as described above, the negative front group AF of the wide-angle lens system A and the negative front group BF of the wide-angle lens system B are arranged in the front-rear direction and on the same (common) optical axis. Is done. Further, a positive rear group AR that is bent by 90 ° by the first prism AP1 and the second prism AP2 and extends in the vertical direction, and a positive rear group that is bent by 90 ° by the first prism BP1 and the second prism BP2 and extends in the vertical direction. And the rear group BR are spaced apart in the left-right direction. The positive rear group AR and the positive rear group BR extending in the up-down direction may extend in parallel with each other, or may extend slightly in parallel (substantially parallel). Further, the imaging sensor AI at a location bent rightward by 90 ° by the third prism AP3 and the imaging sensor BI located at a location bent left by 90 ° by the third prism BP3 are used to form an imaging surface of both. They are oriented in the left-right direction, and are arranged with their surfaces opposite to the imaging surface back to back. In the imaging device 1, the object-side lens of the negative front group AF of the wide-angle lens system A projects forward (exposes) from the lens exposure hole 31 of the front metal housing 30, and the negative front group BF of the wide-angle lens system B. The object-side lens projects backward (exposed) from the lens exposure hole 21 of the rear metal housing 20, and the other components are housed inside the housing 10.

  That is, the wide-angle lens systems A and B include front groups AF and BF facing the front and rear directions above the housing 10 and rear groups AR and BR extending downward from above the housing 10. I have. In addition, each of the wide-angle lens systems A and B serves as a prism (optical path changing unit), and a first prism (first optical path changing unit) that changes the optical path of a subject light beam that has passed through the front groups AF and BF above the housing 10 in the left-right direction. The first prism (first optical path changing unit) AP1, BP1 above the casing 10 and the second prism (second optical path changing unit) that changes the optical path of the subject light flux passing through the first prism (first optical path changing unit) AP1, BP1. Optical path changing units) AP2 and BP2, and third prisms (third optical path changing units) AP3 and BP3 below the housing 10 for changing the optical path of the subject light beam passing through the rear groups AR and BR in the left-right direction. are doing. This makes it possible to arrange the components of the imaging device 1 inside the housing 10 with high layout efficiency and achieve compactness.

  The first prism AP1 of the wide-angle lens system A and the first prism BP1 of the wide-angle lens system B have a reflection surface (optical path changing unit) common to the wide-angle lens systems A and B. That is, the first prism AP1 and the first prism BP1 share a reflecting surface in such a manner that the slopes thereof are close to each other. The reflection surfaces of the wide-angle lens systems A and B are made of a reflection film shared by the wide-angle lens systems A and B, and this reflection film is composed of two optically equivalent transparent members, a first prism AP1 and a first prism AP1. It is sandwiched between the slopes of the prism BP1. In this state, the first prism AP1, the first prism BP1, and the reflection film are integrated, and a reflection surface (optical path changing portion) common to the wide-angle lens systems A and B is formed. This makes it possible to reduce the width of the wide-angle lens systems A and B in the direction of the incident optical axis.

  A variable aperture stop AS is disposed between the first prism AP1 and the second prism AP2 of the wide-angle lens system A, and a variable aperture stop AS is disposed between the first prism BP1 and the second prism BP2 of the wide-angle lens system B. An aperture BS is arranged. A first prism AP1 and a second prism AP2 are provided near (front and rear) the variable aperture stop AS for adjusting light quantity, and the first prism BP1 and the second prism BP2 are provided near (front and back) for the variable aperture stop BS for light quantity adjustment. With this arrangement, a small right-angle prism can be used, and the distance between the wide-angle lens systems A and B can be reduced. A symmetrical configuration in which a first prism AP1 and a second prism AP2 are provided on both sides of the variable aperture stop AS, and a negative front group AF and a positive rear group AR are provided on both sides thereof, and a variable aperture stop. A symmetric configuration in which the first prism BP1 and the second prism BP2 are located on both sides of the BS and the negative front group BF and the positive rear group BR are located on both sides thereof can be realized.

  The apertures of the variable aperture stop AS and the variable aperture stop BS are individually and independently adjusted based on the outputs of the image sensors AI and BI. For example, when the imaging apparatus 1 is used outdoors, a large amount of sunlight enters only one of the wide-angle lens systems A and B, and as a result, the brightness (exposure state) of the wide-angle lens systems A and B may greatly differ. is there. In this state, if the images obtained by the image sensor AI and the image sensor BI are combined, an unnatural whole celestial sphere image in which the boundary between the bright part and the dark part is reflected. Therefore, when a large amount of sunlight is incident on only one of the wide-angle lens systems A and B, the variable aperture stop of one of the wide-angle lens systems is narrowed down from the variable aperture stop of the other wide-angle lens system. By adjusting the brightness (exposure state) of A and B to be uniform, it is possible to obtain a natural omnidirectional image in which there is no boundary between a bright portion and a dark portion.

  The third prism AP3 of the wide-angle lens system A has a convex surface (aspheric surface) AP3X protruding toward the image sensor AI, and the third prism BP3 of the wide-angle lens system B protrudes toward the image sensor BI. It has a convex (aspheric) BP3X. Since the wide-angle lens systems A and B have a short focal length, when the last surface of the wide-angle lens systems A and B is bent as in the present embodiment, a situation occurs in which the back focus is long despite the short focal length. Resulting in. In order to avoid this situation, the projection position is changed by providing a convex surface AP3X and a convex surface BP3X.

  The wide-angle lens systems A and B and the imaging sensors AI and BI configured as described above are integrated (blocked) as an optical unit. A screw hole (not shown) is formed in the optical unit. The optical unit was inserted into the rear metal housing 20, the front metal housing 30, the left side connection housing 40, the right side connection housing 50, and the lower surface connection housing 60 while being housed inside the combined body. The optical unit is assembled by screwing (tightening) a co-tightening screw (not shown) into the screw hole.

  As shown in FIG. 6A to FIG. 6C and FIG. 7A to FIG. 7B, a wireless module substrate 100 that converts imaging signals from the imaging sensors AI and BI into wireless signals is held (accommodated and stored) below the housing 10. ing. The wireless module substrate 100 is formed by overlapping a sub-substrate 101 located on the front side and a main substrate 102 located on the rear side in the front-rear direction so as to be electrically connectable. The sub-board 101 has a relatively small, substantially rectangular shape in plan view, and the main board 102 has a relatively large, substantially rectangular shape in plan view. At the upper right portion of the main board 102, a transmission member 103 that extends upward, is bent rightward, further extends upward, and then is bent leftward is attached. The transmission member 103 can be composed of, for example, a coaxial cable or FPC.

  The other end of the transmission member 103 whose one end is connected to the main board 102 is connected to the communication antenna 110. The transmission member 103 transmits image signals from the image sensors AI and BI to the communication antenna 110, and the communication antenna 110 wirelessly transmits the image signals to an external device. In addition, the communication antenna 110 can transmit and receive various signals to and from an external device.

  The communication antenna 110 has an antenna main body 111 and an antenna board 112 for holding the antenna main body 111. The antenna main body 111 can be configured by, for example, an FPC or a rigid FPC. The antenna substrate 112 is provided with an opening OS formed on the upper surface of the combined body of the rear metal housing 20, the front metal housing 30, the left side connection housing 40, the right side connection housing 50, and the bottom connection housing 60. It has a curved shape (arc shape) along the shape, and the other end of the transmission member 103 is connected to the upper surface of the curved shape, and the antenna body 111 is attached.

  As shown in FIGS. 8A and 8B, the opening OS in which the communication antenna 110 is housed (held) is filled with the rear resin housing 70, the front resin housing 80, and the connection resin housing 90. The rear resin housing 70, the front resin housing 80, and the connection resin housing 90 are made of a relatively rigid resin material (for example, PC (polycarbonate)) as compared with the rear metal housing 20 and the front metal housing 30. Alternatively, it may be an integrally molded product composed of ABS resin or a mixture thereof.

  The rear resin housing 70 has a curved shape fitted into a curved cutout of an opening OS formed above the rear metal housing 20. The front resin casing 80 has a curved shape that is fitted into a curved cutout of an opening OS formed above the front metal casing 30. The rear resin housing 70 and the front resin housing 80 have a symmetrical shape facing in opposite directions in the front-rear direction. The connection resin housing 90 has a curved shape that is fitted between the rear resin housing 70 and the front resin housing 80 among the openings OS formed above the rear metal housing 20 and the front metal housing 30. have.

  As shown in FIGS. 9A and 9B, a pair of screw-hole-shaped protrusions 23 spaced apart in the left-right direction is formed slightly above the lens exposure hole 21 of the rear metal housing 20. The body 70 is formed with a pair of screw insertion holes 71 corresponding to the pair of projections 23 with screw holes. The pair of threaded projections 23 and the pair of screw insertion holes 71 are aligned, and a pair of tightening screws 72 are inserted into the pair of screw insertion holes 71 to be inserted into the screw holes of the pair of threaded projections 23. By screwing (tightening), the rear metal housing 20 and the rear resin housing 70 are connected. Although the connection structure between the rear metal housing 20 and the rear resin housing 70 has been described here, the connection structure between the front metal housing 30 and the front resin housing 80 is also the same.

  With reference to FIGS. 10 to 13, a process of assembling the communication antenna 110 and the connection resin housing 90 to the combined body of the front metal housing 30 and the front resin housing 80 will be described.

  As shown in FIG. 10, a pair of screw-hole-shaped protrusions 32 spaced apart in the left-right direction is formed slightly above the lens exposure hole 31 of the front metal housing 30. A pair of screw insertion holes 81 corresponding to the pair of screw hole projections 32 are formed. The pair of screw holes 32 and the pair of screw insertion holes 81 are aligned, and a pair of tightening screws 82 are inserted into the pair of screw insertion holes 81 so that the screw holes of the pair of screw hole projections 32 are formed. By screwing (tightening), the front metal housing 30 and the front resin housing 80 are connected. Above the front metal housing 30 and the front resin housing 80, a plurality of bosses (reference numerals) inserted into a plurality of boss insertion holes (not shown) of the connection resin housing 90 and positioned with the connection resin housing 90. (Abbreviation). The number, shape, arrangement, and the like of the plurality of bosses have a degree of freedom, and various design changes are possible. On both sides of the front-side metal housing 30 with the front-side resin housing 80 interposed therebetween, projections 34 with screw holes 33 having screw holes 33 are formed.

  As shown in FIG. 11, a plurality of bosses formed above the front metal housing 30 and the front resin housing 80 are inserted into a plurality of boss insertion holes of the connection resin housing 90, so that the connection resin housing 90 is formed. Is positioned. The connection resin casing 90 has a pair of screw insertion holes 91 that are separated in the left-right direction (only one of the pair of screw insertion holes 91 is illustrated in FIG. 11). In the positioning state of the connection resin housing 90, the pair of screw insertion holes 91 and the pair of screw holes 33 of the front metal housing 30 overlap and match.

  As shown in FIG. 12, the communication antenna 110 connected to the transmission member 103 of the wireless module substrate 100 is mounted above the housing 10 (the front metal housing 30, the front resin housing 80, and the connection resin housing 90). As shown in FIGS. 7A and 7B, the antenna substrate 112 of the communication antenna 110 has a pair of screw insertion holes 113 separated in the left-right direction. When the communication antenna 110 is installed, a pair of screw insertion holes 91 of the connection resin housing 90 and a pair of screw insertion holes 113 of the antenna substrate 112 of the communication antenna 110 are inserted into the pair of screw holes 33 of the front metal housing 30. And overlap and match.

  As shown in FIG. 13, a pair of tightening screws 120 are inserted through a pair of screw insertion holes 91 of the connection resin housing 90 and a pair of screw insertion holes 113 of the antenna substrate 112 of the communication antenna 110, and the pair of tightening screws 120 is inserted. The attached screw 120 is screwed (tightened) into a pair of screw holes 33 of the front metal housing 30. Thereby, the front metal casing 30 (front resin casing 80), the connection resin casing 90, and the communication antenna 110 are integrated (see also FIGS. 6A to 6B and FIG. 8B). Although not shown, a combined body of the rear metal housing 20 and the rear resin housing 70 is assembled and fixed to the integrated member.

  As described above, the imaging apparatus 1 of the present embodiment includes the housing 10, the two wide-angle lens systems A and B held by the housing 10, and the communication antenna 110 held by the housing 10. . Then, as shown in FIG. 14, the communication antenna 110 is arranged between the maximum angle-of-view optical paths so as not to be included in the maximum angle-of-view optical paths of the two wide-angle lens systems A and B. Thereby, while maintaining the optical performance such as the resolution of the optical unit (integrating the wide-angle lens systems A and B and the imaging sensors AI and BI) and the wide angle of view, the captured image (for example, a spherical image) can be obtained. It is possible to reliably prevent the communication antenna 110 from being reflected (a captured image is shaken by the communication antenna 110), and to realize excellent image quality.

  The housing 10 includes a relatively high-rigidity metal housing (a rear metal housing 20 and a front-side metal housing 30) and a relatively low-rigidity resin housing (a rear-side resin housing 70 and a front-side resin housing). And a connection resin housing 90). By holding the optical unit (integrating the wide-angle lens systems A and B and the imaging sensors AI and BI) and the wireless module substrate 100 inside the metal housing, these performances are maintained, and the static load and impact are maintained. , Etc., can be reduced (the durability can be improved). By holding the communication antenna 110 inside the resin housing, the efficiency of wireless communication of captured images and the like can be improved. In other words, by forming exterior components and built-in components around the communication antenna 110 from a non-conductive resin material, a conductive member that blocks radio waves and an electronic circuit that affects wireless communication can be moved away from the communication antenna 110. It can be placed.

  The metal housing (the rear metal housing 20 and the front metal housing 30) includes a grip GP disposed below, a shutter button 22 disposed on the grip GP, and an opening OS disposed above. The resin housing (the rear resin housing 70, the front resin housing 80, and the connection resin housing 90) is disposed so as to cover (fill) the opening OS. If the communication antenna 110 is built in the grip portion GP made of a metal housing, when the photographer grips the grip portion GP to operate the shutter button 22, the radio wave is blocked by the photographer's hand, and the wireless communication is performed. There is a possibility that the efficiency of the method may decrease. However, as in the present embodiment, by incorporating the communication antenna 110 in a resin housing that covers (fills in) the opening OS that is separated from the shutter button 22 disposed on the grip GP, the photographer can release the shutter button 22. Even when the grip GP is gripped for operation, the efficiency of wireless communication can be maintained at a high level.

  In the present embodiment, a configuration in which a communication antenna is disposed in a resin casing that covers an opening OS disposed in an upper direction of the imaging device 1 is described as one embodiment of the present invention. However, the arrangement of the communication antenna may be any position as long as the radio wave is interrupted by the photographer's hand when the photographer grips the grip portion GP to operate the shutter button 22 and the efficiency of wireless communication does not decrease. Therefore, it is also possible to arrange a communication antenna near the lower surface connection case 60 in the downward direction of the imaging device 1. In this case, a plurality of (two in this case) lenses arranged on the most object side of the front groups AF and BF of the wide-angle lens systems A and B located above are provided with the shutter button 22 provided on the grip portion GP. It will be arranged between L1 and the communication antenna located below.

  The communication antenna 110, the front metal housing 30, and the connection resin housing 90 are connected to a pair of screw insertion holes 113 of the antenna substrate 112 of the communication antenna 110 and a pair of screw insertion holes 91 of the connection resin housing 90, respectively. 120 are inserted, and the pair of tightening screws 120 are screwed (tightened) into the pair of screw holes 33 of the front metal housing 30 to be integrated. Accordingly, the communication antenna 110, the front metal housing 30, and the connection resin housing 90 can be integrated with a simple configuration, and the assemblability can be improved.

  The wide-angle lens systems A and B include a front group AF, BF facing the front and rear direction above the housing 10, a rear group AR, BR extending downward from above the housing 10, and a front group AF, BF. An optical path changing unit (first prisms AP1, BP1 and second prisms AP2, BP2) for changing the optical path in the front-rear direction to the optical path in the vertical direction of the rear units AR, BR is provided. The communication antenna 110 is held by the housing 10 further above the front groups AF and BF. Alternatively, when viewed in the vertical direction, the communication antenna 110 is held by the housing 10 on the side opposite to the rear groups AR and BR with the front groups AF and BF therebetween.

  The imaging device 1 of the present embodiment increases the size of the imaging sensors AI and BI and reflects the prism three times (the first prism AP1, BP1 and the second prism AP2, the BP2 and the third prism AP3) in order to improve the quality of a captured image. , BP3) and the number of lenses in the front group AF, BF and the rear group AR, BR are relatively large, resulting in an increase in the size of the optical unit. Therefore, the layout efficiency inside the housing 10 is improved by forming the wireless module substrate 100 located below the optical unit as a so-called two-story structure of the sub substrate 101 and the main substrate 102 facing each other in the front-rear direction.

  Nevertheless, where and how to arrange the communication antenna 110 is a technical issue, and as a result of the inventor's intensive research, the communication antenna 110 has been moved further upward than the front groups AF and BF, or in the vertical direction. When viewed, the idea of arranging the communication antenna 110 on the side opposite to the rear groups AR and BR with the front groups AF and BF therebetween was reached. In particular, the communication antenna 110 is disposed above a plurality of (two in this case) lenses L1 disposed on the most object side of the front groups AF and BF of the wide-angle lens systems A and B, respectively. Further, the plurality (two in this case) of lenses L1 disposed closest to the object is disposed between the communication antenna 110 and the shutter button 22 disposed on the grip GP. As a result, in addition to improving the layout efficiency, the communication antenna 110 is surely prevented from being reflected in a captured image (for example, a spherical image) (the captured image is shaken by the communication antenna 110). The effect of realizing an improved image quality is obtained. Further, even when the photographer grips the grip portion GP to operate the shutter button 22, the efficiency of wireless communication can be maintained at a high level.

  In the above embodiment, the case where the imaging apparatus 1 includes two wide-angle lens systems A and B has been described as an example. However, the number of wide-angle lens systems included in the imaging apparatus 1 is not limited to two and may be three. There may be more than one. In this case, the number of imaging sensors mounted on the imaging device 1 may be matched with the number of wide-angle lens systems.

REFERENCE SIGNS LIST 1 imaging device 10 housing 20 rear metal housing 21 lens exposure hole 22 shutter button 23 convex portion with screw hole 30 front metal housing 31 lens exposure hole 32 convex portion with screw hole 33 screw hole 34 convex portion with screw hole 40 Left side connection case 50 Right side connection case 51 Power button 52 53 54 Operation button 60 Bottom connection case 70 Rear resin case 71 Screw insertion hole 72 Tightening screw 80 Front resin case 81 Screw insertion hole 82 Tighten Screw 90 Connection resin housing 91 Screw insertion hole 100 Wireless module board 101 Sub board 102 Main board 103 Transmission member (coaxial cable, FPC)
110 Communication antenna 111 Antenna body (FPC, rigid FPC)
112 Antenna substrate 113 Screw insertion hole 120 Tightening screw GP Grip unit OS Opening A Wide-angle lens system (fisheye lens system, optical system, imaging optical system)
AF Front group AR Rear group AS Variable aperture stop AP1 First prism (first optical path changing unit)
AP2 Second prism (second optical path changing unit)
AP3 Third prism (third optical path changing unit)
AP3X Convex surface AI Image sensor B Wide-angle lens system (fisheye lens system, optical system, imaging optical system)
BF Front group BR Rear group BS Variable aperture stop BP1 First prism (first optical path changing unit)
BP2 2nd prism (2nd optical path changing part)
BP3 Third prism (third optical path changing unit)
BP3X Convex surface BI Image sensor L1 Negative lens L2 Negative lens L3 Negative lens L4 Positive lens L5 Positive lens L6 Positive lens L7 Negative lens L8 Positive lens L9 Negative lens L10 Positive lens

Claims (10)

A housing,
A plurality of optical systems held by the housing;
A communication antenna held by the housing;
Has,
The communication antenna is arranged so as not to be included in the maximum angle of view optical path of the plurality of optical systems,
An imaging device characterized by the above-mentioned. The housing has a relatively high-rigidity metal housing and a relatively low-rigidity resin housing,
The plurality of optical systems are held in the metal housing,
The communication antenna is held in the resin housing,
The imaging device according to claim 1, wherein: The metal housing has a grip disposed below and an opening disposed above,
The resin housing is arranged to cover the opening of the metal housing,
The imaging device according to claim 2, wherein: By inserting a screw into a screw insertion hole formed in the communication antenna and the resin housing and tightening the screw into a screw hole formed in the metal housing, the communication antenna, the metal housing and the The resin housing is integrated,
The imaging device according to claim 2 or 3, wherein: A plurality of image sensors on which images by the plurality of optical systems are formed,
A transmission member that transmits image signals from the plurality of image sensors to the communication antenna,
The imaging device according to any one of claims 1 to 4, further comprising: The transmission member includes a coaxial cable or an FPC;
The imaging device according to claim 5, wherein: The plurality of optical systems includes a front group facing the front and rear direction above the housing, a rear group extending downward from above the housing, and an optical path of the front group in the front and rear direction of the front group. An optical path changing unit that changes the optical path in the vertical direction,
The communication antenna is held in the housing further above the front group,
The imaging device according to claim 1, wherein: The plurality of optical systems includes a front group facing the front and rear direction above the housing, a rear group extending downward from above the housing, and an optical path of the front group in the front and rear direction of the front group. An optical path changing unit that changes the optical path in the vertical direction,
The communication antenna, when viewed in the up-down direction, is held in the housing on the opposite side of the rear group with the front group therebetween.
The imaging device according to claim 1, wherein: The communication antenna has an FPC or a rigid FPC;
The imaging device according to any one of claims 1 to 8, wherein: A housing,
A plurality of optical systems housed in the housing;
A communication antenna housed in the housing;
A shutter button arranged on the surface of the housing;
Has,
A plurality of lenses arranged on the most object side respectively having the plurality of optical systems are arranged between the communication antenna and the shutter button,
An imaging device characterized by the above-mentioned.

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