Holding device, camera unit, and imaging system

Abstract

A retention device is provided that can be inserted into a transparent tubular member. The holding apparatus is characterized by comprising: a holding part capable of holding an imaging device including an imaging device for imaging an outside of a tubular member and an imaging optical system; and a driving portion capable of moving the holding device in the tubular member.

Description

Technical Field

[0001] The invention relates to a holding device, a camera unit and a camera system. Background Art

[0002] The self-driving vehicle and the remote camera system described in Patent Document 1 are known as technologies capable of remotely observing animals and the like exhibited in zoos, aquariums, and the like. With the remote camera system using the self-driving vehicle described in Patent Document 1, a user can remotely operate the self-driving vehicle including a camera unit. According to the user's operation, the self-driving vehicle can move along a predetermined path set around an animal exhibition area, for example. The camera unit can start and stop taking still images or moving images, and can swing in the longitudinal direction or the lateral direction according to the user's remote operation.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Publication No. 2021-176024 Summary of the invention

[0006] Problem that the invention aims to solve

[0007] However, in the case of the prior art described in Patent Document 1, if the self-driving vehicle directly approaches the animal without a fence or cage between them, it may be difficult to stably capture an image of the animal because the animal may contact the self-driving vehicle.

[0008] An object of the present invention is to provide a holding device, a camera unit, and an imaging system with which an image of a subject can be captured more stably than before.

[0009] Solutions for solving problems

[0010] In order to achieve this purpose, the holding device according to the present invention is a holding device that can be inserted into a transparent tubular member, which includes: a holding portion that can hold a camera device, the camera device including a camera optical system and a camera device for capturing an image of the outside of the tubular member; and a driving portion that can move the holding device in the tubular member.

[0011] In order to achieve the above object, a holding device according to the present invention is a holding device that can be inserted into a tubular member, and includes: a holding portion that can hold an imaging device including an imaging optical system and an imaging device; a driving portion that can move the holding device in the tubular member; and a passive portion that is moved by the driving portion. The holding portion is supported in a manner of being sandwiched between the passive portion and the driving portion.

[0012] To achieve the above object, a camera unit according to the present invention is a camera unit that can be inserted into a transparent tubular member, and includes: an imaging device including an imaging optical system and an imaging device for capturing an image of the outside of the tubular member; a holding portion that can hold the imaging device; and a driving portion that can move the camera unit in the tubular member.

[0013] To achieve the above object, a camera unit according to the present invention is a camera unit that can be inserted into a tubular member, and includes: an image pickup device including an image pickup optical system and an image pickup device; a holding portion capable of holding the image pickup device; a driving portion capable of moving the camera unit in the tubular member; and a passive portion that is moved by the driving portion. The holding portion is supported in a manner sandwiched between the passive portion and the driving portion.

[0014] To achieve the above object, an imaging system according to the present invention comprises: a transparent tubular member; and a camera unit which can be inserted into the transparent tubular member, the camera unit comprising an imaging device, a holding portion and a driving portion, the imaging device comprising an imaging optical system and an imaging device for capturing an image of the outside of the tubular member, the holding portion being capable of holding the imaging device, and the driving portion being capable of moving the camera unit in the tubular member.

[0015] In order to achieve the above object, the imaging system according to the present invention includes: a tubular member; and a camera unit which can be inserted into the tubular member, the camera unit including an imaging device, a holding part, a driving part and a passive part, the imaging device including an imaging optical system and an imaging device, the holding part can hold the imaging device, the driving part can move the camera unit in the tubular member, and the passive part is moved by the driving part. The holding part is configured to be supported in a manner sandwiched between the passive part and the driving part.

[0016] Effects of the Invention

[0017] With the present invention, it is possible to provide a holding device, a camera unit, and an imaging system with which an image of a subject can be captured more stably than before. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] [ Figure 1 ] Figure 1 is a block diagram of an imaging system according to the first embodiment.

[0019] [ Figure 2 ] Figure 2 A state in which the holding device according to the first embodiment is inserted into the tubular member is illustrated.

[0020] [ Figure 3] Figure 3 is a perspective view of a holding device according to a first embodiment.

[0021] [ Figure 4 ] Figure 4 is an exploded perspective view of the holding device according to the first embodiment.

[0022] [ Figure 5 ] Figure 5 is a cross-sectional view of the holding device according to the first embodiment taken along line AA.

[0023] [ Figure 6 ] Figure 6 is a cross-sectional view of the holding device according to the first embodiment taken along line BB.

[0024] [ Figure 7 ] Figure 7 is a cross-sectional view of the holding device according to the first embodiment taken along line CC.

[0025] [ Fig. 8A ] Fig. 8A is a cross-sectional view illustrating a rotation mechanism of a driving portion included in the holding device according to the first embodiment.

[0026] [ Figure 8B ] Figure 8B is a cross-sectional view illustrating a rotation mechanism of a driving portion included in the holding device according to the first embodiment.

[0027] [ Fig. 9 ] Fig. 9 is a cross-sectional view illustrating a supporting mechanism of a driving portion included in the holding device according to the first embodiment.

[0028] [ Fig.10 ] Fig.10 A configuration according to a modified example of the first embodiment is illustrated.

[0029] [ Fig.11 ] Fig.11 A state in which a holding device according to a modification example of the first embodiment is inserted into a tubular member is illustrated.

[0030] [ Fig.12 ] Fig.12 is a perspective view of a holding device according to a modified example of the first embodiment. DETAILED DESCRIPTION

[0031] [First embodiment]

[0032] [Structure of the camera system IS]

[0033] Figure 11 is a block diagram of an imaging system IS according to the present embodiment. The imaging system IS includes: a camera unit (camera device) CU including a holder (holding device) HA and an imaging device IA; a tube (tubular member) TM into which the camera unit CU is inserted. The imaging device IA includes an imaging optical system 10S for capturing an image outside the tube TM and an imaging device ID (see FIG. Figure 5 ).

[0034] In the present embodiment, the above-mentioned constituent elements are collectively referred to as a camera system IS. However, a collection of constituent elements including the above-mentioned constituent elements may be referred to as a camera system IS. For example, in addition to the above-mentioned constituent elements, a server SA connected to the camera device IA, a display DA that displays an image captured by the camera device IA, and a battery BA may be included in the camera system IS and referred to as the camera system IS. The camera device IA and the server SA are connected wirelessly or by wire. The battery BA supplies power to the motor M1 and the motor M2 described below.

[0035] The server SA can receive an image captured by the camera device IA, can receive a signal from an operation device OA such as a smartphone, a tablet, or a controller, and can transmit the signal to the camera section IA. With such a configuration, for example, a user of the camera system IS at a zoo or home can operate the camera device IA and the drive section DP described below via the operation device OA, and the user can capture an image of a subject such as an animal under the user's desired camera conditions.

[0036] The camera apparatus IA and the server SA may be connected by wire, or may be connected wirelessly. When the camera apparatus IA is connected wirelessly to the server SA, the camera apparatus IA may include a communication control member (communication chip) for communicating with the server SA. Alternatively, for example, the communication control member TCM may be provided in the camera holder CH described below or in the drive unit DP, and the communication control member TCM and the camera apparatus IA may be connected by wire in the holder HA (see FIG. Fig.10 ).

[0037] The battery BA is a power supply device for supplying power to the motor M1 and the motor M2. In the present embodiment, the imaging apparatus IA is driven by an internal power supply. However, the imaging apparatus IA may also receive power supply from the battery BA.

[0038] [Structure of holder HA]

[0039] Next, the configuration of the holder (holding device) HA will be described. Figure 2The diagram shows a state where the holder HA is inserted into the transparent tube (tubular member) TM. The camera body (camera body) CB is detachably held by the holder HA, and the interchangeable lens IL is detachably held by the camera body CB. In the present embodiment, the camera body CB and the interchangeable lens IL are collectively referred to as the imaging apparatus IA. However, the imaging apparatus IA may have a structure in which the camera body and the lens are integrated.

[0040] like Figure 5 As shown, the interchangeable lens IL includes an imaging optical system 10S as a collection of a plurality of lens units and has an autofocus function. The interchangeable lens IL may also have a variable-magnification function. The camera body CB includes an imaging device ID.

[0041] Figure 5 The position and size of the imaging device ID in are approximate positions and sizes that are different from the actual positions and sizes.

[0042] The holder HA and the interchangeable lens IL and the camera body CB held by the holder HA are arranged in the extending direction of the tube TM (along the Figure 2 The camera body CB and the interchangeable lens IL can be moved in the up and down directions (along the straight arrow direction in the figure). Figure 2 The device can rotate (can be turned or rocked) about the extending direction of the tube TM or the direction intersecting the optical axis direction of the interchangeable lens IL (in the direction of the curved arrow in FIG. 1 ).

[0043] Figure 3 is a three-dimensional diagram of the retaining member HA. Figure 4 : is an exploded perspective view of the holder HA. The holder HA includes a passive part PP, a camera holder (holding part) CH, and a driving part DP. Hereinafter, the passive part PP, the camera holder CH, and the driving part DP will be described.

[0044] [Structure of the passive part PP]

[0045] The structure of the passive part PP will be described. The passive part PP includes an outer member (first outer member) EM1 and an outer member (second outer member) EM11. The outer member EM1 and the outer member EM11 each have a plurality of recesses (grooves, notches), and a plurality of rollers R1 are rotatably accommodated in a corresponding one of the plurality of recesses.

[0046] Roller R1 is a passive roller, and is configured to contact with the inner peripheral portion (inner peripheral surface) of tube TM and rotate when holder HA inserted in tube TM is moved by driving portion DP. Passive portion PP includes a total of six rollers R1 arranged at 60 degree intervals.

[0047] The exterior member EM1 is fixed to the exterior member EM11 with a plurality of screws S11. The screws S1 and an annular member (first annular member) AM1 are included in a plurality of members for connecting the passive part PP to the camera holder CH. Details of the configuration for connecting the passive part PP to the camera holder CH will be described below.

[0048] [Structure of Camera Holder CH]

[0049] The configuration of the camera holder CH will be described. The camera holder CH includes an exterior member (third exterior member) EM2 and a screw S2. The screw S2 is a screw that fixes the camera body CB to the exterior member EM2, and is a male screw that engages with a tripod fixing screw hole at the bottom of the camera body CB.

[0050] [Structure of Connecting Passive Part PP to Camera Holder CH]

[0051] A configuration for connecting the passive part PP to the camera holder CH will be described. Figure 5 is a cross-sectional view of the retaining member HA taken along line AA, Figure 6 is a cross-sectional view of the retaining member HA taken along line BB, Figure 7 : is a cross-sectional view of the holder HA taken along line CC. The camera holder shaft (camera holder shaft member, or simply referred to as shaft member) CSM1 is fixed to the outer member EM2 using a plurality of screws S21. A screw hole is provided at the distal end of the camera holder shaft CSM1. A bearing B1 is provided between the outer member EM1 and the outer member EM11 in a manner of being sandwiched between the outer member EM1 and the outer member EM11, and the camera holder shaft CSM1 is inserted into the radially inner part of the bearing B1.

[0052] More specifically, the bearing B1 is housed in an annular space formed by the step portion of the outer member EM1 and the step portion of the outer member EM11. The positional relationship of the camera holder shaft CSM1 and the outer member EM2 in the axial direction is fixed, and they can rotate relative to the passive part PP around the axial direction (the extension direction of the tube TM) through the bearing B1.

[0053] The annular member AM1 is arranged to cover the distal end of the camera holder shaft CSM1, and the screw S1 is inserted into the screw hole at the distal end of the camera holder shaft CSM1 from above the annular member AM1. That is, the position of the camera holder shaft CSM1 fixed to the outer member EM2 by a plurality of screws S21 relative to the outer member EM1 and the outer member EM11 in the axial direction is fixed by the screws S1, the annular member AM1 and the bearing B1. As a result, the passive part PP is connected to the camera holder CH, in other words, the positional relationship between the passive part PP and the camera holder CH in the axial direction (the extension direction of the tube TM) is fixed.

[0054] [Structure of driving unit DP]

[0055] The configuration of the driving portion DP will be described. The driving portion DP includes an outer member (fourth outer member) EM3, an outer member (fifth outer member) EM31, an outer member (sixth outer member) EM32, and an outer member (seventh outer member) EM33. The outer member EM3 and the outer member EM31 each have a plurality of recesses (grooves, notches), and the plurality of rollers R2 are rotatably housed in a corresponding one of the plurality of recesses.

[0056] The roller R2 is a passive roller, and is configured to contact with the inner peripheral portion of the tube TM and rotate when the holder HA inserted in the tube TM is moved by the driving portion DP. The driving portion DP includes a total of six rollers R2 disposed at 60 degree intervals.

[0057] The exterior member EM31 is fixed to the exterior member EM3 with a plurality of screws S34 , and the exterior member EM32 and the exterior member EM33 are fixed to the exterior member EM31 with a plurality of screws S3 .

[0058] The outer casing EM32 and the outer casing EM33 are connected to the shaft member (first shaft member) SM1, the shaft member (second shaft member) SM11 and the shaft member (third shaft member) SM13. Screw holes are formed at both ends of each shaft member. The shaft member SM1 is fixed to the outer casing EM32 and the outer casing EM33 using a plurality of screws S32. The shaft member SM11 is fixed to the outer casing EM32 and the outer casing EM33 using a plurality of screws S33. The shaft member SM13 is fixed to the outer casing EM32 and the outer casing EM33 using a plurality of screws S31.

[0059] The roller R21 is supported by the shaft member SM1 in a rotatable manner around the shaft member SM1. The roller R21 is a passive roller, and is configured to contact with the inner peripheral portion of the tube TM and rotate when the holder HA inserted into the tube TM is moved by the driving portion DP.

[0060] That is, the shaft member SM1 is a shaft member for connecting the outer member EM32 and the outer member EM33 of the driving part DP, and is a shaft member that serves as the rotation axis of the roller R21. In other words, the shaft member SM1 has both the function of connecting the outer member EM32 and the outer member EM33 of the driving part DP and the function of serving as the rotation axis of the roller R21. Since one member has multiple functions in this way, the driving part DP can be miniaturized, and the holder HA can be miniaturized in association with this.

[0061] [Structure for rotating roller R22]

[0062] The driving section DP includes a motor M2. The motor M2 is a motor for rotating (driving) the roller R22. The roller R22 is a driving roller. The rollers R22 are press-fitted to both ends of the shaft member (fourth shaft member) SM12 and each has a trapezoidal cross-sectional shape. Therefore, each roller R22 contacts the inner circumference of the tube TM at two points, and the contact area (contact point) can be increased compared to a cylindrical roller. As a result, the holder HA and the associated imaging device IA can be stably moved in the tube TM.

[0063] When the holder HA is inserted into the tube TM, the roller R22 contacts the inner periphery of the tube TM, and when the roller R22 is driven by the motor M2, the holder HA moves in the tube TM. The motor M2 is held by the base member BM1. The gear member (first gear member) G12 is attached to the drive shaft of the motor M2. The gear member (second gear member) G11 is attached to the shaft member SM12. The shaft member SM12 is rotatably held by a plurality of bearings (third bearings) B3, which are held by the base member BM1 and the metal plate member PM1, respectively.

[0064] The gear member G12 meshes with the gear member G11. Therefore, when the motor M2 is driven, the gear member G12 rotates, so the gear member G11 and the shaft member SM12 rotate, and the roller R22 fixed to the shaft member SM12 rotates. The drive control member DCM1 for controlling the motor M2 and the motor M1 is also held by the base member BM1.

[0065] [Structure for Pressing Roller R22 Against Inner Periphery of Tube TM]

[0066] The driving part DP includes a metal plate member PM1. The metal plate member PM1 is fixed to the base member BM1 by a plurality of screws S36. The metal plate member PM1 includes an elastically deformable arm portion PM1a. The shaft member (fifth shaft member) SM14 is fixed to the outer member EM33 by screws S35, and a spring (elastic member) SP1 is provided on the outer periphery of the shaft member SM14 in a manner that can contact the wall portion PM1a.

[0067] like Fig. 8A and Figure 8B As shown, the base member BM1 is rotatable about the shaft member SM13 relative to the exterior member EM32 and the exterior member EM33. As described above, the shaft member SM13 is a shaft member for coupling the exterior member EM32 and the exterior member EM33.

[0068] That is, the shaft member SM13 is a shaft member for connecting the outer member EM32 and the outer member EM33, and is a supporting member for rotatably supporting the base member BM1. In other words, the shaft member SM13 has both the function of connecting the outer member EM32 and the outer member EM33 of the driving part DP and the function of serving as the rotating shaft of the base member BM1. Since one member has multiple functions in this way, the driving part DP can be miniaturized, and the retaining member HA can be miniaturized in association with this.

[0069] For the sake of illustration, for example, when Fig. 9 When the downward direction in the plane of the shaft member SM13 (as viewed in the axial direction of the shaft member SM13) is defined as the direction of gravity, before the holder HA is inserted into the tube TM, the base member BM1 is Fig. 9 The plane of the shaft SM13 is tilted in the clockwise direction. Fig. 9 As shown, since the stopper portion BM1a of the base member BM1 contacts the shaft member SM11, the base member BM1 is supported in a manner not to become further inclined.

[0070] In other words, the stopper BM1a limits the rotation of the base member BM1. As described above, the shaft member SM11 is a shaft member for connecting the outer member EM32 and the outer member EM33. That is, the shaft member SM11 is a shaft member for connecting the outer member EM32 and the outer member EM33, and is a supporting member that can support the base member BM1.

[0071] In other words, the shaft member SM11 has the function of connecting the outer member EM32 and the outer member EM33 of the driving part DP, and also has the function of supporting the base member BM1 (rotation limiting function). Since one member has multiple functions in this way, the driving part DP can be miniaturized, and the retaining member HA can be miniaturized accordingly.

[0072] When the holder HA is inserted into the tube TM, the roller R22 is pressed against the inner circumference of the tube TM. Fig. 8A and Figure 8B As a result, the base member BM1 is pushed upward in the plane of Fig. 8A and Figure 8B The spring SP1 is compressed by the arm PM1a. At this time, due to the restoring force of the spring SP1, the arm PM1a is Fig. 8A and Figure 8B is pushed back downwards in the plane of Fig. 8A and Figure 8B As a result, the roller R22 is pressed against the inner peripheral portion of the tube TM.

[0073] With this configuration, the contact state of the roller R22 with the inner circumference of the tube TM is stabilized (the contact of the roller R22 with the inner circumference of the tube TM becomes easier), and the roller R22 can be stably moved (rotated). In this regard, the holder HA and the imaging device IA become stable relative to the tube TM.

[0074] The metal plate member PM1 has both the above-mentioned function of pressing the roller R22 against the inner peripheral portion of the tube TM and the function of holding the bearing B3.

[0075] [Structure for Connecting Driving Section DP to Camera Holder CH]

[0076] A configuration for connecting the driving section DP to the camera holder CH will be described. An annular member (second annular member) AM2 is fixed to the exterior member EM2 with a plurality of screws S37. The annular member AM2 is a fixing ring made of metal and having a slit.

[0077] A bearing (second bearing) B2 is provided between the annular member AM2 and the flange portion CGM1a of the cylindrical gear member (third gear member) CGM1. The cylindrical gear member CGM1 is a hollow shaft, and a gear is formed at its end. The bearing B2 is provided between the outer member EM3 and the outer member EM31 in a manner sandwiched between the outer member EM3 and the outer member EM31, and the cylindrical gear member CGM1 is inserted into the radially inner portion of the bearing B2.

[0078] More specifically, the bearing B2 is housed in an annular space formed by the step portion of the exterior member EM3 and the step portion of the exterior member EM31. The camera holder shaft CSM1 fixed to the camera holder CH is inserted into the bearing B1 attached to the passive part PP, and the passive part PP is fixed in a rotatable manner relative to the axial direction of the camera holder shaft CSM1 of the camera holder CH.

[0079] like Figure 5 As shown, a hole (female thread portion) AM2a is provided in the annular member AM2, and the annular member AM2 is connected by using the hole AM2a and the screw ( Figure 5 As a result, the positional relationship between the annular member AM2 and the cylindrical gear member CGM1 in the axial direction (the extending direction of the cylindrical gear member CGM1) is fixed. Figure 5 As shown, the positional relationship between the cylindrical gear member CGM1 and the annular member AM2 is fixed so that the gear portion of the cylindrical gear member CGM1 meshes with the gear portion of the gear member (fourth gear member) G1.

[0080] The motor (second motor) M1 is fixed to the outer member EM31. The gear member (second gear member) G1 is attached to the transmission shaft of the motor M2. Therefore, when the motor M1 is driven, the gear member G1 rotates, so the cylindrical gear member CGM1 rotates, and the outer member EM2, that is, the camera holder CH, to which the cylindrical gear member CGM1 is fixed rotates.

[0081] That is, a motor (first motor) M2 for moving the holder HA in the tube TM and a motor (second motor) M1 for rotating the camera holder CH are provided in the drive section DP, and the overall miniaturization of the holder HA is achieved. More specifically, since the motor M1 and the motor M2 are provided in the drive section DP and arranged close to each other, it is sufficient to provide a drive control member DCM1 for controlling the two motors near the motors. That is, the overall miniaturization of the holder DA can be achieved by centrally arranging the two motors and the control member in the drive section DP.

[0082] In this way, the outer member EM2 is fixed to the cylindrical gear member CGM1, the position of the cylindrical gear member CGM1 in the axial direction is fixed by the annular member AM2 relative to the bearing B2, and the position of the bearing B2 in the axial direction is fixed in the driving portion DP. As a result, the driving portion DP is connected to the camera holder CH, and the camera holder CH can be rotated around the axial direction by the driving portion DP.

[0083] Since the camera holder CH can be rotated by the driving unit DP, the camera body CB and the interchangeable lens IL rotate. By enabling the driving unit DP to be controlled by the user, the camera body CB and the interchangeable lens IL can be adjusted in the shooting angle ( Figure 2 to the angle desired by the user.

[0084] As described above, the passive part PP is also connected to the camera holder CH, and, as can be seen from the above description, Figure 3 As can be understood by the like, the camera holder HA is supported in a manner of being sandwiched between the passive part PP and the driving part DP. In other words, in a case where the camera holder HA is sandwiched between the passive part PP and the driving part DP, the driving part DP (passive part PP) is provided on the side opposite to the passive part PP (driving part DP). With this construction, the weight of the camera holder HA is supported by the passive part PP and the driving part DP at both ends, and the load on the cylindrical gear member CGM1 serving as the rotation axis can be reduced. As a result, deflection and tilting can be suppressed, and stable rotation and images can be provided.

[0085] [Summarize]

[0086] As described above, the holder HA is a holding device that can be inserted into the transparent tube TM. The holder HA includes a camera holder CH that can hold an image pickup apparatus (camera body CB and interchangeable lens IL) IA, and the image pickup apparatus includes an image pickup optical system 10S and an image pickup device ID for capturing an image outside the tube TM. The holder HA also includes a drive section DP that can move the holder HA in the tube TM. With this configuration, since the holder HA can move in the tube TM without being affected by the outside (disturbance), the camera holder CH is stable, the image pickup apparatus IA is stable, and it is possible to capture an image of a subject more stably than before.

[0087] The holder HA is a holding device that can be inserted into the tube TM, and includes a camera holder CH that can hold the imaging apparatus IA, which includes an imaging optical system 10S and an imaging device ID. The holder HA also includes a driving portion DP that can move the holder HA in the tube TM and a passive portion PP that is moved by the driving portion DP. The camera holder CH is supported in a manner sandwiched between the passive portion PP and the driving portion DP. With such a configuration, the camera holder CH is stabilized by being supported left and right (front and back), and the imaging apparatus IA is stable and can capture an image of a subject more stably than before.

[0088] More specifically, since a platform or trees are provided in an exhibition space in a zoo, for example, a layout with steps is considered. Even with such a layout, by providing the tube TM, since the holder HA and the imaging apparatus IA move in the tube TM, the holder HA and the imaging apparatus IA can be stably moved without being affected by the road conditions.

[0089] Therefore, when the holder HA and the camera system IS according to the present embodiment are set, for example, in a zoo or the like, the animals can only touch the outer peripheral surface of the tube TM, thereby increasing the safety of both the camera apparatus IA and the animals.

[0090] [Other structures]

[0091] like Figure 5 As shown, the cylindrical gear member CGM1 is provided with a hole CGM1b. Figure 4As shown, a recess (notch) EM32a is provided in the outer member EM32, and a recess (notch) EM33a is provided in the outer member EM33. When the outer member EM32 is connected to the outer member EM33, the recess EM32a and the recess EM33a form a hole (space). Through the hole CGM1b and the hole formed by the recess EM32a and the recess EM33a, the camera body CB can be wired to a server, a computer and a battery outside the holder HA. That is, in addition to the function of connecting the camera holder CH with the driving part DP and the function of rotating the camera holder CH in the axial direction relative to the driving part DP, the cylindrical gear member CGM1 also has the function of spatially connecting the camera holder CH and the driving part DP.

[0092] In this embodiment, the camera body CB and the interchangeable lens IL are both existing products that are already on the market. In other words, the camera holder CH is constructed to be able to hold an existing camera device. Therefore, the production cost can be reduced compared to when a new camera device is designed and manufactured. In addition, the camera device can be updated to the latest model only.

[0093] The focal length of the imaging optical system 10S preferably satisfies the condition of 20mm≤50mm≤80mm, and more preferably satisfies the condition of 30mm≤50mm≤70mm or 40mm≤50mm≤60mm. By setting the focal length to about 50mm, that is, close to the human field of view, a more impactful image of a subject such as an animal can be captured, and more specifically, an image in which the observer can easily feel the feeling as if the observer has turned into a small person. The tube TM is preferably set so that the height of the optical axis of the imaging optical system 10S from the setting surface of the tube TM (for example, the ground) satisfies the condition of 80mm≤100mm≤120mm. When such a condition is satisfied, a more impactful image of a subject such as an animal can be captured, and more specifically, an image in which the observer can easily feel the feeling as if the observer has turned into a small person.

[0094] Even when the tube TM has not only a straight portion but also a curved portion, the holder HA can move in the tube TM if the curvature is large and within a range such that the holder HA does not interfere with the inner circumference of the tube TM. In other words, the present embodiment is not limited to the case where the tube TM has only a straight portion.

[0095] [Modifications]

[0096] In the first embodiment, the tube TM is a transparent tubular member. However, the holder HA may be inserted into an opaque tubular member, and the imaging device IA may capture an image of the inside of the tubular member.

[0097] Fig.10The diagram illustrates the construction of a variation of the present embodiment. In the present embodiment, the camera body CB and the interchangeable lens IL (imaging device IA) are driven by an internal power source. However, in the present variation, the imaging device IA receives power supply from a battery BA1 provided in the driving section DP. The battery BA1 can be charged by an external power source BA2. A charging terminal (first charging terminal) CT1 is provided on the outer side surface of the driving section DP, and a charging terminal (second charging terminal) CT2 connected to the external power source BA2 is provided at the end of the tube TM. When the holder HA approaches the end of the tube TM and the charging terminal CT1 contacts the charging terminal CT2, the power of the external power source BA2 is supplied to the battery BA1.

[0098] In the present embodiment, the imaging apparatus IA and the server SA perform wired communication. However, in the present modification, the communication control member TCM provided in the driving portion DP is wiredly connected to the camera body. As a result, the imaging apparatus IA can perform wireless communication with the server SA via the communication control member TCM.

[0099] For example, a plurality of holders HA and a plurality of camera devices IA may be provided in the same display space so that the user can select the holder HA and camera device IA that the user wants to use. In this case, the user can cause a viewpoint jump by selecting a camera device IA that takes an image from a desired direction, and can obtain a desired still image or moving image.

[0100] The tube TM can be set along the tree. By setting the tube TM at a higher position such as a position on a tree, images of animals living on the tree can be taken.

[0101] The tube TM can be set not only on land but also in water. With the present system moving in the tube TM, by sealing the tube TM, it is not necessary to make the camera apparatus IA waterproof, and it is possible to capture images of amphibians by seamlessly tracking the animals.

[0102] In the present embodiment, both the camera body CB and the interchangeable lens IL are existing products already on the market. However, the camera body CB and the interchangeable lens IL may be newly designed for the holder HA.

[0103] Instead of mounting the camera body CB and the interchangeable lens IL on the camera holder CH, the camera holder CH, the camera body CB, and the interchangeable lens IL may be integrated from the beginning.

[0104] The holder HA, camera apparatus IA and camera system IS according to the present embodiment can be used not only to capture images of animals in zoos, aquariums, etc., but also to perform live broadcasts, equipment inspections in aquariums or gas pipes, etc., for example.

[0105] The tube TM may have a double structure. More specifically, the tube TM may have a double structure including a tube (first tubular member) for movably holding the holder HA and a tube (second tubular member) provided outside the tube. Depending on the focusing performance of the imaging apparatus IA, if an animal or the like is too close to the imaging apparatus IA, it may not be possible to focus. By making the tube have a double structure, the possibility of not being able to focus on the animal or the like can be reduced, and the safety of both the imaging apparatus IA and the animal can be increased.

[0106] As in Fig.11 and Fig.12 In the illustrated variation, it is not necessary to support the holding portion in such a manner as to be sandwiched between the passive portion and the driving portion. Fig.11 The dotted lines in are imaginary lines representing the boundaries among the camera device PCZC, the camera holder MCH, and the drive DP described below.

[0107] Fig.11 The holder (holding device) MHA shown has a camera holder (holding portion) MCH capable of holding the image pickup device PCZC and the driving portion DP to which the camera holder MCH is connected, but does not have Figure 3 Even in the case of such a configuration, since the holder MHA can move in the tube TM without being affected by the outside world (disturbance), the camera holder MCH is stable and the imaging device PCZC is stable, and it is possible to capture an image of the subject more stably than before.

[0108] The camera device PCZC is a camera device capable of so-called pan, tilt and zoom, and includes a mechanism, a camera device and a camera optical system for these. The camera device PCZC can be operated by using an information device or the like connected wirelessly or by wire, and the operator can take an image with a desired composition by using the pan, tilt and zoom functions of the camera device PCZC. However, in this modification, the pan, tilt and zoom functions are not essential. It is sufficient that the camera device can take an image of the outside of the transparent tubular member.

[0109] The camera holder MCH includes a gear member MG. By rotating the gear member MG, the screw (in Fig.11 and Fig.12 The camera holder MCH is fixed to the driving section DP by means of screws (not shown in the figure).

[0110] [Reference example]

[0111] If the holding portion capable of holding the imaging device can be moved in the tubular member, the holding device does not necessarily have a driving portion. For example, a holding device having a configuration in which passive portions are respectively provided on the front and rear sides (or on the left and right sides, respectively, depending on the viewpoint) of the holding portion capable of holding the imaging device can be inserted into the tubular member, and the holding device can be moved in the tubular member by an external force (for the holding device) such as aerodynamic force.

[0112] The embodiments of the present invention have been described so far. However, the present invention is not limited to these embodiments, but can be modified or altered in various ways within the scope of the gist thereof.

[0113] The disclosure of this specification includes the holding device, camera unit, and imaging system described below.

[0114] [Structure 1]

[0115] A holding device, which can be inserted into a transparent tubular member, comprising:

[0116] a holding portion capable of holding an imaging apparatus including an imaging optical system and an imaging device for capturing an image of the outside of the tubular member; and

[0117] A drive portion is provided which is capable of moving the holding device in the tubular member.

[0118] [Construction 2]

[0119] The holding device according to configuration 1 further includes:

[0120] a passive part, which is moved by the driving part,

[0121] The holding portion is supported in a manner of being sandwiched between the passive portion and the driving portion.

[0122] [Construction 3]

[0123] A holding device insertable into a tubular member, the holding device comprising:

[0124] a holding portion capable of holding an imaging device including an imaging optical system and an imaging device;

[0125] a drive portion capable of moving the holding device within the tubular member; and

[0126] a passive part, which is moved by the driving part,

[0127] The holding portion is supported in a manner of being sandwiched between the passive portion and the driving portion.

[0128] [Construction 4]

[0129] The holding device according to claim 2 or 3,

[0130] The passive portion includes a plurality of passive rollers that can contact the inner circumferential surface of the tubular member.

[0131] [Structure 5]

[0132] The holding device according to any one of configurations 1 to 4,

[0133] The driving part includes a plurality of passive rollers that can contact the inner circumference of the tubular member, a plurality of driving rollers that can contact the inner circumference of the tubular member, and a first motor for rotating the driving rollers.

[0134] [Construction 6]

[0135] The holding device according to any one of configurations 1 to 5,

[0136] wherein the driving portion includes a plurality of exterior members and a shaft member for connecting the plurality of exterior members to each other, and

[0137] The shaft member holds at least one passive roller among the plurality of passive rollers.

[0138] [Construction 7]

[0139] The holding device according to any one of configurations 1 to 6,

[0140] wherein the driving portion includes a plurality of exterior members, a shaft member for connecting the plurality of exterior members to each other, and a base member for holding the first motor, and

[0141] When viewed along the axial direction of the shaft member, the base member is held rotatably around the axial direction of the shaft member.

[0142] [Construction 8]

[0143] The holding device according to any one of configurations 1 to 7,

[0144] wherein the driving portion includes a plurality of exterior members and a shaft member for connecting the plurality of exterior members to each other, and

[0145] The base member includes a stopper capable of limiting rotation of the base member by contacting the shaft member.

[0146] [Construction 9]

[0147] The holding device according to any one of configurations 1 to 8,

[0148] The driving part includes a metal plate member and an elastic member,

[0149] wherein the metal sheet member is fixed to the base member,

[0150] wherein the metal plate member includes an arm portion that can contact the elastic member, and

[0151] The driving portion is configured so that when a restoring force of the elastic member acts via the arm portion, the plurality of driving rollers can contact the inner peripheral surface of the tubular member.

[0152] [Structure 10]

[0153] The holding device according to any one of configurations 1 to 9,

[0154] The driving rollers are all in trapezoidal shape.

[0155] [Structure 11]

[0156] According to the holding device described in construction 5,

[0157] The driving section includes a second motor configured to rotate the holding section in a direction intersecting with an optical axis of the imaging optical system.

[0158] [Structure 12]

[0159] According to the holding device of construction 11,

[0160] The holding portion includes a cylindrical gear member that is rotatable by the second motor and has a hole.

[0161] [Structure 13]

[0162] The holding device according to any one of configurations 1 to 12,

[0163] The driving unit includes a plurality of outer components.

[0164] wherein each of the plurality of exterior components has a recessed portion, and

[0165] wherein a hole is formed through the recess when the plurality of exterior members are connected to one another.

[0166] [Structure 14]

[0167] The holding device according to any one of configurations 1 to 13,

[0168] The holding portion can hold the imaging device in a detachable manner.

[0169] [Structure 15]

[0170] The holding device according to any one of configurations 1 to 14,

[0171] The camera device described is an existing product.

[0172] [Construction 16]

[0173] The holding device according to any one of configurations 1 to 15,

[0174] The focal length of the imaging optical system satisfies

[0175] 20mm≤50mm≤80mm.

[0176] [Construction 17]

[0177] According to the holding device of construction 16,

[0178] The focal length of the imaging optical system satisfies

[0179] 30mm≤50mm≤70mm.

[0180] [Structure 18]

[0181] According to the holding device of construction 18,

[0182] The focal length of the imaging optical system satisfies

[0183] 40mm≤50mm≤60mm.

[0184] [Construction 19]

[0185] A camera unit is insertable into a transparent tubular member, the camera unit comprising:

[0186] an imaging device including an imaging optical system and an imaging device for capturing an image of the exterior of the tubular member;

[0187] a holding portion capable of holding the imaging device; and

[0188] A driving portion is configured to move the camera unit in the tubular member.

[0189] [Construction 20]

[0190] The camera unit according to configuration 19, further comprising:

[0191] a passive part, which is moved by the driving part,

[0192] The holding portion is supported in a manner of being sandwiched between the passive portion and the driving portion.

[0193] [Structure 21]

[0194] A camera unit is insertable into a tubular member, the camera unit comprising:

[0195] An imaging device comprising an imaging optical system and an imaging device;

[0196] a holding portion capable of holding the imaging device;

[0197] a driving portion capable of moving the camera unit in the tubular member; and

[0198] a passive part, which is moved by the driving part,

[0199] The holding portion is supported in a manner of being sandwiched between the passive portion and the driving portion.

[0200] [Construction 22]

[0201] According to the camera unit of construction 20 or 21,

[0202] The passive portion includes a plurality of passive rollers that can contact the inner circumferential surface of the tubular member.

[0203] [Construction 23]

[0204] The camera unit according to any one of configurations 19 to 22,

[0205] The driving part includes a plurality of passive rollers that can contact the inner circumference of the tubular member, a plurality of driving rollers that can contact the inner circumference of the tubular member, and a first motor for rotating the driving rollers.

[0206] [Construction 24]

[0207] The camera unit according to any one of configurations 19 to 23,

[0208] wherein the driving portion includes a plurality of exterior members and a shaft member for connecting the plurality of exterior members to each other, and

[0209] The shaft member holds at least one passive roller among the plurality of passive rollers.

[0210] [Construction 25]

[0211] The camera unit according to any one of configurations 19 to 24,

[0212] wherein the driving portion includes a plurality of exterior members, a shaft member for connecting the plurality of exterior members to each other, and a base member for holding the first motor, and

[0213] When viewed along the axial direction of the shaft member, the base member is held in a manner rotatable around the axial direction of the shaft member.

[0214] [Construction 26]

[0215] The camera unit according to any one of configurations 19 to 25,

[0216] wherein the driving portion includes a plurality of exterior members and a shaft member for connecting the plurality of exterior members to each other, and

[0217] The base member includes a stopper capable of limiting rotation of the base member by contacting the shaft member.

[0218] [Construction 27]

[0219] The camera unit according to any one of configurations 19 to 26,

[0220] The driving part includes a metal plate member and an elastic member,

[0221] wherein the metal sheet member is fixed to the base member,

[0222] wherein the metal plate member includes an arm portion that can contact the elastic member, and

[0223] The driving portion is configured such that when a restoring force of the elastic member acts via the arm portion, the plurality of driving rollers can contact the inner peripheral surface of the tubular member.

[0224] [Construction 28]

[0225] The camera unit according to any one of configurations 19 to 27,

[0226] The driving rollers are all in trapezoidal shape.

[0227] [Construction 29]

[0228] According to the camera unit of configuration 23,

[0229] The driving section includes a second motor configured to rotate the holding section in a direction intersecting with an optical axis of the imaging optical system.

[0230] [Construction 30]

[0231] According to the camera unit of configuration 29,

[0232] The holding portion includes a cylindrical gear member that is rotatable by the second motor and has a hole.

[0233] [Construction 31]

[0234] The camera unit according to any one of configurations 19 to 30,

[0235] The driving unit includes a plurality of outer components.

[0236] wherein each of the plurality of exterior components has a recessed portion, and

[0237] When the plurality of exterior members are connected to one another, a hole is formed by the recessed portion.

[0238] [Construction 32]

[0239] The camera unit according to any one of configurations 1 to 31,

[0240] The holding portion can hold the imaging device in a detachable manner.

[0241] [Construction 33]

[0242] The camera unit according to any one of configurations 19 to 32,

[0243] The camera device described is an existing product.

[0244] [Construction 34]

[0245] The camera unit according to any one of configurations 19 to 33,

[0246] Wherein, the focal length of the camera optical system satisfies

[0247] 20mm≤50mm≤80mm.

[0248] [Construction 35]

[0249] According to the camera unit of configuration 34,

[0250] Wherein, the focal length of the camera optical system satisfies

[0251] 30mm≤50mm≤70mm.

[0252] [Construction 36]

[0253] According to the camera unit of configuration 35,

[0254] Wherein, the focal length of the camera optical system satisfies

[0255] 40mm≤50mm≤60mm.

[0256] [Construction 37]

[0257] A camera system, comprising:

[0258] a transparent tubular member; and

[0259] A camera unit can be inserted into the transparent tubular member, the camera unit includes an imaging device, a holding portion and a driving portion, the imaging device includes an imaging optical system and an imaging device for capturing an image of the outside of the tubular member, the holding portion is capable of holding the imaging device, and the driving portion is capable of moving the camera unit in the tubular member.

[0260] [Construction 38]

[0261] A camera system, comprising:

[0262] Tubular members; and

[0263] A camera unit that can be inserted into the tubular member, the camera unit includes an imaging device, a holding portion, a driving portion, and a passive portion, the imaging device including an imaging optical system and an imaging device, the holding portion being capable of holding the imaging device, the driving portion being capable of moving the camera unit in the tubular member, the passive portion being moved by the driving portion, wherein the holding portion is configured to be supported in a manner sandwiched between the passive portion and the driving portion.

[0264] [Construction 39]

[0265] The camera system according to claim 37 or 38,

[0266] The imaging device and the driving section are operable by an operating device.

[0267] [Construction 40]

[0268] The camera system according to any one of configurations 37 to 39, comprising:

[0269] A first charging terminal provided on the driving unit; and

[0270] A second charging terminal is contactable with the first charging terminal when the camera unit moves in the tubular member.

[0271] The present invention is not limited to the above-described embodiments, and may be modified and altered in various ways without departing from the spirit and scope of the present invention. Therefore, the following claims are attached to disclose the scope of the present invention.

[0272] This application hereby claims priority to Japanese Patent Application No. 2022-079265 filed on May 13, 2022 and Japanese Patent Application No. 2023-074206 filed on April 28, 2023, the entire contents of which are incorporated herein by reference.

Claims

1. A holding device that can be inserted into a transparent tubular member, the holding device include: a holding portion capable of holding an imaging device including an imaging optical system and an imaging device for capturing an image of the outside of the tubular member; and A drive portion is provided which is capable of moving the holding device in the tubular member.

2. The holding device according to claim 1, further comprising: include: a passive part, which is moved by the driving part, The holding portion is supported in a manner of being sandwiched between the passive portion and the driving portion.

3. A holding device that can be inserted into a tubular member, the holding device include: a holding portion capable of holding an imaging device including an imaging optical system and an imaging device; a drive portion capable of moving the holding device within the tubular member; and a passive part, which is moved by the driving part, The holding portion is supported in a manner of being sandwiched between the passive portion and the driving portion.

4. A holding device according to claim 2 or 3, The passive portion includes a plurality of passive rollers that can contact the inner circumferential surface of the tubular member.

5. A holding device according to claim 2 or 3, The driving part includes a plurality of passive rollers that can contact the inner circumference of the tubular member, a plurality of driving rollers that can contact the inner circumference of the tubular member, and a first motor for rotating the driving rollers.

6. The holding device according to claim 4, wherein the driving portion includes a plurality of exterior members and a shaft member for connecting the plurality of exterior members to each other, and The shaft member holds at least one passive roller among the plurality of passive rollers.

7. The holding device according to claim 5, wherein the driving portion includes a plurality of exterior members, a shaft member for connecting the plurality of exterior members to each other, and a base member for holding the first motor, and in, When viewed along the axial direction of the shaft member, the base member is held rotatably around the axial direction of the shaft member.

8. The holding device according to claim 7, wherein the driving portion includes a plurality of exterior members and a shaft member for connecting the plurality of exterior members to each other, and The base member includes a stopper capable of limiting rotation of the base member by contacting the shaft member.

9. The holding device according to claim 7, The driving part includes a metal plate member and an elastic member, wherein the metal sheet member is fixed to the base member, wherein the metal plate member includes an arm portion that can contact the elastic member, and The driving portion is configured to allow the plurality of driving rollers to contact the inner peripheral surface of the tubular member when a restoring force of the elastic member acts via the arm portion.

10. The holding device according to claim 4, The driving rollers are all in trapezoidal shape.

11. The holding device according to claim 5, The driving section includes a second motor configured to rotate the holding section in a direction intersecting with an optical axis of the imaging optical system.

12. The holding device according to claim 11, The holding portion includes a cylindrical gear member that is rotatable by the second motor and has a hole.

13. A holding device according to claim 1 or 3, The driving unit includes a plurality of outer components. wherein each of the plurality of exterior components has a recessed portion, and wherein a hole is formed through the recess when the plurality of exterior members are connected to one another.

14. A holding device according to claim 1 or 3, The holding portion can hold the imaging device in a detachable manner.

15. A holding device according to claim 1 or 3, The camera device described is an existing product.

16. A holding device according to claim 1 or 3, The focal length of the imaging optical system satisfies 20mm≤50mm≤80mm.

17. A holding device according to claim 16, The focal length of the imaging optical system satisfies 30mm≤50mm≤70mm.

18. A holding device according to claim 17, The focal length of the imaging optical system satisfies 40mm≤50mm≤60mm.

19. A camera unit that can be inserted into a transparent tubular member, the camera unit include: an imaging device including an imaging optical system and an imaging device for capturing an image of the exterior of the tubular member; a holding portion capable of holding the imaging device; and A driving portion is configured to move the camera unit in the tubular member.

20. The camera unit of claim 19, further comprising: include: a passive part, which is moved by the driving part, The holding portion is supported in a manner of being sandwiched between the passive portion and the driving portion.

21. A camera unit insertable into a tubular member, the camera unit include: An imaging device comprising an imaging optical system and an imaging device; a holding portion capable of holding the imaging device; a driving portion capable of moving the camera unit in the tubular member; and a passive part, which is moved by the driving part, The holding portion is supported in a manner of being sandwiched between the passive portion and the driving portion.

22. A camera unit according to claim 20 or 21, The passive portion includes a plurality of passive rollers that can contact the inner circumferential surface of the tubular member.

23. A camera unit according to claim 20 or 21, The driving part includes a plurality of passive rollers that can contact the inner circumference of the tubular member, a plurality of driving rollers that can contact the inner circumference of the tubular member, and a first motor for rotating the driving rollers.

24. The camera unit according to claim 22, wherein the driving portion includes a plurality of exterior members and a shaft member for connecting the plurality of exterior members to each other, and The shaft member holds at least one passive roller among the plurality of passive rollers.

25. The camera unit according to claim 23, wherein the driving portion includes a plurality of exterior members, a shaft member for connecting the plurality of exterior members to each other, and a base member for holding the first motor, and When viewed along the axial direction of the shaft member, the base member is held in a manner rotatable around the axial direction of the shaft member.

26. The camera unit according to claim 25, wherein the driving portion includes a plurality of exterior members and a shaft member for connecting the plurality of exterior members to each other, and The base member includes a stopper capable of limiting rotation of the base member by contacting the shaft member.

27. The camera unit according to claim 25, The driving part includes a metal plate member and an elastic member, wherein the metal sheet member is fixed to the base member, wherein the metal plate member includes an arm portion that can contact the elastic member, and The driving portion is configured such that when a restoring force of the elastic member acts via the arm portion, the plurality of driving rollers can contact the inner peripheral surface of the tubular member.

28. The camera unit of claim 22, The driving rollers are all in trapezoidal shape.

29. The camera unit of claim 23, The driving section includes a second motor configured to rotate the holding section in a direction intersecting with an optical axis of the imaging optical system.

30. The camera unit according to claim 29, The holding portion includes a cylindrical gear member that is rotatable by the second motor and has a hole.

31. A camera unit according to claim 19 or 21, The driving unit includes a plurality of outer components. wherein each of the plurality of exterior components has a recessed portion, and When the plurality of exterior members are connected to one another, a hole is formed by the recessed portion.

32. A camera unit according to claim 19 or 21, The holding portion can hold the imaging device in a detachable manner.

33. A camera unit according to claim 19 or 21, The camera device described is an existing product.

34. A camera unit according to claim 19 or 21, The focal length of the imaging optical system satisfies 20mm≤50mm≤80mm.

35. The camera unit of claim 34, The focal length of the imaging optical system satisfies 30mm≤50mm≤70mm.

36. The camera unit of claim 35, The focal length of the imaging optical system satisfies 40mm≤50mm≤60mm.

37. A camera system, include: A transparent tubular member; and A camera unit can be inserted into the transparent tubular member, the camera unit includes an imaging device, a holding portion and a driving portion, the imaging device includes an imaging optical system and an imaging device for capturing an image of the outside of the tubular member, the holding portion is capable of holding the imaging device, and the driving portion is capable of moving the camera unit in the tubular member.

38. A camera system, include: Tubular components; and A camera unit which can be inserted into the tubular member, the camera unit comprising an imaging device, a holding portion, a driving portion and a passive portion, the imaging device comprising an imaging optical system and an imaging device, the holding portion being capable of holding the imaging device, the driving portion being capable of moving the camera unit in the tubular member, the passive portion being moved by the driving portion, wherein the holding portion is configured to be supported in a manner sandwiched between the passive portion and the driving portion.

39. The camera system according to claim 37 or 38, The imaging device and the driving section are operable by an operating device.

40. The camera system according to claim 37 or 38, include: A first charging terminal, which is arranged on the driving part; and A second charging terminal is contactable with the first charging terminal when the camera unit moves in the tubular member.

Images