JP2007142552A - Camera with built-in balancing mechanism - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a camera with a built-in balancing mechanism provided with the balancing mechanism for mechanically suppressing a shake that can simply suppress the shake with a low frequency and a large amplitude. <P>SOLUTION: The camera with the built-in balancing mechanism is configured to include: a first unit 10 including imaging sections 12, 13; a second unit 30 including an operation section 36 and a grip section; and buffer coupling mechanisms 20, 21, 22 for coupling the first and second units and buffering the shake of one of the units and delivering the result to the other unit. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a camera with a built-in balance mechanism that includes a balance mechanism that mechanically suppresses shake.

2. Description of the Related Art Conventionally, a rod-shaped photographing auxiliary device that suppresses camera shake via a gimbal mechanism has been proposed as a shake suppression device that is mounted outside the camera in order to suppress a large amount of low-frequency amplitude shake.
Japanese Patent Laid-Open No. 2001-92001

However, in the above-described conventional shake suppression device, the shake suppression device itself is large, and the weight of the camera and the balance weight for balancing the camera are equal. More than twice the main body. In addition, it takes time and effort to attach the camera to the camera and to adjust the exact balance, and handling and operation are not easy.
An object of the present invention is to provide a camera with a built-in balance mechanism that can easily suppress a large shake of low-frequency amplitude without significantly increasing the size and weight.

In the camera with a built-in balance mechanism according to the first aspect, the first unit includes an imaging unit. The second unit includes an operation unit and a grip unit. The buffer connection mechanism connects the first unit and the second unit, buffers one swing of the unit, and transmits it to the other of the units.
In the camera with a built-in balance mechanism according to claim 2, in the camera with a built-in balance mechanism according to claim 1, the fixing mechanism includes the buffer coupling mechanism housed between the first unit and the second unit. In this state, the first unit and the second unit can be fixed.

In the camera with a built-in balance mechanism according to claim 3, in the camera with a built-in balance mechanism according to claim 1, the power supply line is built in one of the first unit and the second unit. Power is supplied from the power source to the other unit. The communication means performs communication between the first unit and the second unit.
In the camera with a built-in balance mechanism according to a fourth aspect, in the camera with a built-in balance mechanism according to the third aspect, the buffer coupling mechanism includes a rotating shaft and an optical transmission path laid through the rotating shaft. The communication means performs the communication via the optical transmission path.

The camera with a built-in balance mechanism according to claim 5 is the camera with a built-in balance mechanism according to claim 4, wherein the rotation shaft of the buffer coupling mechanism has a sliding contact connected to the power supply line.
In the camera with a built-in balance mechanism according to a sixth aspect, in the camera with a built-in balance mechanism according to any one of the third to fifth aspects, the buffer connection mechanism has a parallel link. The power supply line along the parallel link is formed as a flat cable in which wirings are juxtaposed in the direction of the rotation axis of the parallel link.

The camera with a built-in balance mechanism according to claim 7, wherein the camera with a built-in balance mechanism according to any one of claims 3 to 6, wherein the buffer connection mechanism is a support shaft on which the first unit is supported. Have The power supply line is formed in a spiral shape around the support shaft.
The camera with a built-in balance mechanism according to claim 8, wherein the camera with a built-in balance mechanism according to any one of claims 1 to 7, wherein the buffer connection mechanism is at least one in a swing direction by the buffer connection mechanism. It has a fixing mechanism that restricts one.

The camera with a built-in balance mechanism according to claim 9, wherein the camera with a built-in balance mechanism according to any one of claims 1 to 6, wherein the first unit is a relative position in the optical axis direction of the imaging unit. Are configured as a plurality of members movable relative to each other.
The camera with a built-in balance mechanism according to claim 10, wherein the camera with a built-in balance mechanism according to any one of claims 3 to 8, wherein the communication unit is other than the first unit and the second unit. When communicating with the device, a communication path is formed with the device, and communication control suitable for the device is performed.

  As described above, in the present invention, since a large amplitude fluctuation of a low frequency is easily suppressed with a simple configuration, there is no significant increase in size or weight.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a diagram showing first to third embodiments of the present invention. In the figure, the imaging unit 10 is connected to the main unit 30 via a buffer connection mechanism 20.
The imaging unit 10 includes a lens 11 that is used for adjusting a shooting angle of view and a focus. The image sensor 12 is disposed at a position where an image of a subject is formed on the imaging surface of the image sensor 12 via the lens 11. The output of the image sensor 12 is connected to the input of the image processing circuit 13. The image processing circuit 13 is connected to the transmission / reception unit 15 via the communication interface unit 14. Further, the imaging unit 10 is provided with a power supply 16, and the output of the power supply 16 is connected to the input of the power supply circuit 17. A first output of the power supply circuit 17 is connected to a power supply terminal of each part of the imaging unit 10 including the image processing circuit 13. A second output of the power supply circuit 17 is connected to one end of the power supply line 10L.

  In the main unit 30, the transmission / reception unit 31 paired with the transmission / reception unit 15 described above, the communication interface unit 32 connected to the transmission / reception unit 31, and the power supply circuit 33 connected to the other end of the power line 10L described above, Is provided. The communication interface unit 32 is connected to the first port of the control circuit 34. The display element 35 and the operation member 36 are connected to the second and third ports of the control circuit 34, respectively. A flash drive circuit 37 is connected to the fourth port of the control circuit 34. The output of the power supply circuit 33 is connected to the power supply terminal of the flash drive circuit 37, and the other output of the power supply circuit 33 is connected to the power supply terminal of the control circuit 34. A memory 38 is connected to the bus terminal of the control circuit 34. A grip portion having a shape and dimensions suitable for an operator to support the main unit 30 is formed at a predetermined location of the main unit 30 housing.

  The buffer coupling mechanism 20 is interposed between the imaging unit 10 and the main unit 30 so as to be housed in the imaging unit 10 and the main unit 30 described above, as indicated by a broken line frame in FIG. . As shown in FIG. 2, such a buffer connection mechanism 20 includes a gimbal mechanism 21 attached to the imaging unit 10, a parallel link mechanism 22 attached to the main unit 30 and connected to the gimbal mechanism 21 described above. Have

  As shown in FIG. 2, the gimbal mechanism 21 has three types of shafts 21P and (21R) respectively corresponding to pitching, rolling and yawing of the main unit 30 in directions orthogonal to each other. -1, 21R-2), 21Y. As shown in FIG. 3, the shaft 21P has two sliding contacts 21p-1 and 21p-2. The shafts 21R-1 and 21R-2 have sliding contacts 21r-1 and 21r-2, respectively. The axis 21Y has two sliding contacts 21y-1 and 21y-2 arranged so as to be orthogonal to the optical axis 11a of the lens 11. Further, as shown in FIGS. 4A and 4B, the gimbal mechanism 21 operates rotation of all or a part of the three shafts 21P, (21R-1, 21R-2), 21Y described above. It has the connection part fixing mechanism 27 which can be restrict | limited according to a person's instruction | indication.

The parallel link mechanism 22 has four axes 23, 24, 25, and 26. Further, these four shafts 23, 24, 25, and 26 have sliding contacts 23s, 24s, 25s, and 26s, respectively, as shown in FIG. Further, the above-described power supply line 10L includes the following first and second wirings. Sliding contacts 21y-1, 21r-2, 21p-1, 24s, between the first wiring, the anode terminal of the power supply circuit 17 and the anode input terminal of the power supply circuit 33 provided in the main unit 30. 23s. The second wiring lines are sliding contacts 21y-2, 21r-1, 21p-2, 26s between the cathode terminal of the power supply circuit 17 and the anode input terminal of the power supply circuit 33 provided in the main unit 30. , 25s.
[First embodiment]
FIG. 4 is a diagram showing a state of the camera according to the first embodiment of the present invention. The operation of the first embodiment of the present invention will be described below with reference to FIGS.

  In the camera according to the present embodiment, when not in use or when taking a still image, as shown in FIG. 4A, the buffer connection mechanism 20 is housed between the imaging unit 10 and the main unit 30, and these The imaging unit 10 and the main unit 30 are integrated through a fixing mechanism 41. In such a state (hereinafter referred to as a fixed state), the power supply circuit 17 provided in the imaging unit 10 supplies the power supplied from the power supply 16 to each part of the imaging unit 10 including the image processing circuit 13. Further, the power supply circuit 17 supplies power to the main unit 30 via the power supply line 10L configured as the first and second wirings described above. In the main unit 30, the power supply circuit 33 adjusts the power supplied via the power supply line 10L, and supplies the power obtained as a result of the adjustment to the flash drive circuit 37 and other components.

  Further, in the imaging unit 10, the imaging element 12 generates an image signal by imaging through the lens 11. The image processing circuit 13 generates image information by performing predetermined image processing on the image signal, and transmits the image information to the main unit 30 via the communication interface unit 14 and the transmission / reception unit 15. In the fixed state, the transmission / reception unit 15 faces the transmission / reception unit 31 provided in the main unit 30 at a close distance, as shown in FIG. In the present embodiment, the transmission / reception units 15 and 31 are both configured as infrared communication ports compliant with the IrDA (Infrared Data Association) standard.

  In the main body unit 30, the communication interface unit 32 delivers image information received from the imaging unit 10 (transmission / reception unit 15) via the transmission / reception unit 31 to the control circuit 34. The control circuit 34 performs a predetermined process on the image information, accumulates the result of the process in the memory 38, or displays it via the display element 35. In addition, a bidirectional communication path is formed between the control circuit 34 and the image processing circuit 13 provided in the imaging unit 10 via the communication interface unit 32, the transmission / reception units 31 and 15, and the communication interface unit 14. The The control circuit 34 controls and monitors the operation of each unit of the imaging unit 10 via this communication path in accordance with shooting and other instructions given by the operator via the operation member 36.

  By the way, in this embodiment, as shown by the arrow in FIG. 4B, when the top of the fixing mechanism 41 is pushed down by the operator, the fixing claw 42 engaged with the fixing mechanism 41 is released. In addition, the parallel link mechanism 22 is in a deployable state (hereinafter referred to as a fixed release state). Note that the fixing claws 42 protrude from the corresponding side walls of the imaging unit 10. In such an unlocked state, the power supply 16 (and the power supply circuit 17) provided in the imaging unit 10 is connected to the lens 11 with respect to the rod-like member 22A having both ends connected to the parallel link mechanism 22 and the shaft 21P. Functions as a balancer. Further, the center of gravity of the imaging unit 10 is set in advance at a point C directly below the axis 21Y described above. Therefore, the shake of the imaging unit 10 can be reduced compared to the case where such a center of gravity is at a point far away from the axis 21Y. Further, since the main unit 30 is prevented from greatly rotating or continuously vibrating with respect to the imaging unit 10, the posture of the imaging unit 10 is stabilized.

The loss of the optical transmission path formed in the transmission / reception units 15 and 31 is suppressed to be small in any posture that the imaging unit 10 and the main unit 30 take through the buffer connection mechanism 20. Accordingly, a communication path is stably formed between the imaging unit 10 and the main unit 30 even in the fixed release state.
The gimbal mechanism 21 absorbs any pitching, rolling, and yawing of the main unit 30 with respect to the imaging unit 10. Further, the parallel link mechanism 22 absorbs vertical shift of the main body unit 30 with respect to the imaging unit 10. Therefore, the hand shake of the operator who supports the main unit 30 is transmitted to the image pickup unit 10 with all of these pitching, rolling, yawing, and shift shaking being greatly reduced.

  Furthermore, even if the above-described pitching, rolling, yawing, and shifting are generated, the first wiring and the second wiring are respectively slidable contacts 21y-1, 21r-2, 21p-1, It continues to function as the power line 10L via 24s, 23s and the sliding contacts 21y-2, 21r-1, 21p-2, 26s, 25s. Therefore, the power is stably supplied to the main body unit 30 from the imaging unit 10 via the power line 10L. Furthermore, the sliding friction of these sliding contacts 21y-1, 21r-2, 21p-1, 24s, 25s and sliding contacts 21y-2, 21r-1, 21p-2, 26s, 27s is minimized in advance. It can be suppressed.

  Further, the movement of the gimbal mechanism 21 is limited by the connecting portion fixing mechanism 27 operated by the operator. In such a state, for example, the above-described pitching, rolling, and yawing are transmitted from the main unit 30 to the imaging unit 10 without being relaxed. Therefore, the stability of the image is slightly reduced as compared with the case where the movement of the shafts 21P, (21R-1, 21R-2), 21Y of the gimbal mechanism 21 is freely performed, but the lens 11 is directed toward the desired subject. It becomes easy.

  That is, the external force transmitted to the imaging unit 10 from the main unit 30 (the operation member 36 or the display element 35 that the operator or the like shakes) is caused by a bending load of a cable laid between the main unit 30 and the imaging unit 10. It is greatly relaxed without being disturbed. Furthermore, the power supply between the imaging unit 10 and the main unit 30 and the communication path necessary for the cooperation between the two are realized without a cable being directly bridged between these units. Therefore, there is no risk that the cable is sandwiched between the buffer connection mechanisms 20 or is cut by the buffer connection mechanism 20.

Therefore, according to the present embodiment, a low-speed large-amplitude swing is easily suppressed without significantly increasing mechanical dimensions and weight.
In the present embodiment, the above-described communication path is formed via the transmission / reception units 15 and 31 that function as infrared communication ports. However, such a communication path may be formed by using, for example, radio waves or ultrasonic waves as a carrier wave signal instead of infrared rays, and moreover, other than the camera according to the present embodiment, such as Bluetooth. It may be configured as a communication path capable of delivering desired information to and from other devices. In the present embodiment, the power supply 16 is provided in the imaging unit 10 as a balancer with the lens 11, and power is also supplied from the power supply 16 to the main unit 30. However, such a power supply 16 may be provided in the main unit 30 as a power supply source for both the imaging unit 10 and the main unit 30. Further, in the present embodiment, the main body unit 30 is provided with a power supply circuit 33 that performs voltage conversion and other adjustments on the power supplied from the imaging unit 10. However, such a power supply circuit 33 may not be provided when the power supplied from the imaging unit 10 can be directly supplied to each part of the main unit 30.

  In the present embodiment, the power supply 16 is provided in the imaging unit 10 as a balancer with the lens 11. However, such a balancer may be replaced with, for example, a circuit that emits a flashing light for illumination, a capacitor that is an element of the circuit, or a dedicated weight. Further, in the present embodiment, the communication path described above passes through the rotation shafts of the above-described sliding contacts 23s, 24s, 21p-1, 21p-2, 21r-2, 21y-2 as shown in FIG. The transmission / reception units 15 and 31 may be replaced with the optical fiber 28 to be formed. Here, the optical fiber 28 is realized as, for example, an extremely thin film-like optical waveguide having a thickness of 0.2 mm or less, and when the flexibility is high, the twist associated with the rotation of the rotating shaft can be stably absorbed. . Therefore, the optical fiber 28 does not hinder the operation of the buffer coupling mechanism 20 when the range in which the rotation shaft of each sliding contact rotates is not extremely large. Further, since the optical fiber 28 has a very large transmission capacity, it is suitable for transmitting high-definition image information between the imaging unit 10 and the main unit 30. Furthermore, it is possible to suppress electromagnetic interference (EMI) by the gimbal mechanism 21 and the parallel link mechanism 22 exposed to the outside.

Further, in the present embodiment, the power supply from the imaging unit 10 to the main body unit 30 is performed by sliding contacts 21y-1, 21r-2, 21p-1, 24s, 23s and sliding contacts 21y-2, 21r-1. , 21p-2, 26s, and 25s. However, when the power supply described above can be realized via a cable having a small bending resistance acting on the buffer coupling mechanism 20, the power supply line 10L is connected to the sliding contacts 21y-1, 21r-2, 21p-1. 24s, 23s and sliding contacts 21y-2, 21r-1, 21p-2, 26s, 25s may be laid. In the present embodiment, all the rotations of the shafts 21P, (21R-1, 21R-2), 21Y of the gimbal portion 20 are restricted by the connecting portion fixing mechanism 27. However, the shaft whose rotation is restricted by the connecting portion fixing mechanism 27 corresponds to a part of three mutually orthogonal shafts of the gimbal portion 20 (a combination of degrees of freedom individually corresponding to these three shafts). .).
[Second Embodiment]
FIG. 6 is a diagram showing a second embodiment of the present invention. In the figure, a spherical joint 51 is provided in place of the gimbal mechanism 21 shown in FIG. In this embodiment, as shown in FIG. 7 (a), the tip of the connecting portion fixing mechanism 27 penetrates the sphere receiving portion 51R of the sphere joint 51 and the sphere 51b is directly pressed, so that The fixed state described above is realized. Further, in the path where the power supply line 10L is laid, the section from the power supply circuit 33 (main body unit 30) to the main body 51B of the spherical joint 51 described above is an axis of the parallel link mechanism as shown in FIG. It is configured as a film-like flat cable 52 laid so as to sew between 25 and 24. Furthermore, a hole 51 </ b> Bh that communicates with the inner wall of the main body 51 </ b> B is formed at the top corner of the main body 51 </ b> B of the spherical joint 51. The shaft 51A of the spherical joint 51 is formed of a tubular member. A hole 51Ah communicating with the hollow portion of the tubular member is formed on the side wall of the shaft 51A. One end of the cable 52S having an elliptical or circular cross-section is described above in a specific space in the space inside the main body 51B of the spherical joint 51 where the function of the spherical joint 51 is not impaired. It is drawn from the outside through the hole 51Bh. In this specific space, as indicated by a one-dot chain line in FIG. 6, the individual core wires of the flat cable 52 are connected to the corresponding core wires of the cable 52S. Above the main body 51B of the spherical joint 51, the cable 52S is formed in a spiral shape around the shaft 51A. The other end of the cable (hereinafter referred to as a spiral cable) 52S is drawn into the imaging system including the lens 11 through the hole 51Ah and the hollow portion of the shaft 51A. In this imaging system, the other end of the spiral cable 52S is connected to the output of the power supply circuit 17 via a cable 53 different from the spiral cable 52S.

The operation of the second embodiment of the present invention will be described below with reference to FIGS.
The power supply circuit 17 provided in the imaging unit 10 connects the cable 53, the spiral cable 52S, and the flat cable 52 described above in both the fixed state and the fixed state shown in FIGS. 7 (a) and 7 (b). Power is supplied to the main unit 30 (power supply circuit 33). The length of the flat cable 52 and the path on which the flat cable 52 is laid are not limited even if the positions of the shafts 23 to 24 of the parallel link mechanism 22 change in accordance with the shift deflection generated in the unlocked state. It is set in advance so that the movement of 22 is not hindered. Further, since the spiral cable 52S is formed in a spiral shape as described above, there is little force that prevents the rotation and inclination of the shaft 51A of the spherical joint 51, and such a force is suppressed within the allowable limit. Consists of a cored wire and sheath of the material to be used

Therefore, according to this embodiment, even when the spherical joint 51 in which it is difficult to form a sliding contact is provided in place of the gimbal mechanism 21 described above, the above-described pitching, rolling, yawing, and The shift shake is alleviated and a power supply path between the imaging unit 10 and the main unit 30 is secured.
In the present embodiment, the flat cable 52, the spiral cable 52S, and the cable 53 are used only as the power supply path described above. However, the flat cable 52, the spiral cable 52S, and the cable 55 are provided in place of the transmission / reception units 15 and 31, and between the imaging unit (communication interface unit 14) and the main unit (communication interface unit 32). It may be used as a communication path.
[Third embodiment]
FIG. 8 is a diagram showing a detailed configuration of the third embodiment of the present invention. In the figure, the housing of the imaging unit 10 is composed of a first housing 10Cn and a second housing 10Cp. For example, the top of the second housing 10Cp is movably provided at the bottom of the first housing 10Cn, and is configured to be slidable in a direction parallel to the optical axis of the lens 11. Inside the first housing 10Cn, the lens 11, the image sensor 12, and the buffer coupling mechanism 20 are arranged. Further, a power supply 16 that functions as a balancer for the lens 11 is disposed inside the second casing 10Cp. When the mass of the image processing circuit 13, the power supply circuit 17, the communication interface unit 14, and the transmission / reception unit 15 is significantly smaller than that of the lens 11 or the power supply 16, the first and second casings 10Cn, It may be arranged in any of 10 Cp.

The operation of the third embodiment of the present invention will be described below with reference to FIG. 1, FIG. 7, and FIG.
When the accessory is not attached to the lens 11 (first housing 10Cn), as shown in FIG. 8A, the top of the second housing 10Cp is set to the bottom of the first housing 10Cn by the operator. The power supply 16 functions as a balancer for the lens 11. Further, as shown in FIG. 8B, in a state where an accessory such as the converter 61 is attached to the lens 11 (first housing 10Cn), the balance between the power supply 16 and the lens 11 is lost. However, in such a case, as shown by an arrow in FIG. 8 (b), the position of the second casing 10Cp is changed by the operator in a direction away from the converter 61, whereby the above-described balance is lost. Is resolved.

Therefore, according to the present embodiment, in addition to the shapes and dimensions of the first casing 10Cn and the second casing 10Cp, the combination, arrangement, and center of gravity of the elements arranged inside these casings 10Cn, 10Cp Is appropriately set in advance, the above-described balance is ensured even if there are various accessories attached to the lens.
In the present embodiment, the balance of the state in which the converter 61 is mounted is maintained by allowing the top of the second housing 10Cp to slide on the bottom of the first housing 10Cn. However, for example, such a balance may be ensured by providing some mechanism that can change the distance and position between the first casing 10Cn and the second casing 10Cp. Moreover, in each embodiment mentioned above, the high frequency shake is not relieved by the buffer connection mechanism 20. However, for example, as shown in FIGS. 7A and 7B, the lens shift mechanism 11S (incorporated in the lens 11) according to the output of the camera shake sensor (angular velocity sensor) 18 provided in the imaging unit 10. Such high-frequency shake may be corrected by driving.

  Further, in each of the above-described embodiments, the connecting portion fixing mechanism 27 is provided in the case where the direction of the lens 11 toward the desired subject may be hindered by pitching, rolling, yawing, and shift shaking. It does not have to be. The present invention is not limited to the above-described embodiments, and various embodiments are possible within the scope of the present invention, and any improvements may be made to some or all of the constituent elements.

It is a figure which shows 1st thru | or 3rd embodiment of this invention. It is a figure which shows the structure of a buffer connection mechanism. It is a figure which shows the structure of the power wire formed through a sliding contact. It is a figure which shows the state of the camera in connection with 1st embodiment of this invention. It is a figure which shows the structure of the communication path laid as an optical fiber. It is a figure which shows 2nd embodiment of this invention. It is a figure which shows the state of the camera in connection with 2nd embodiment of this invention. It is a figure which shows the state of 3rd embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Imaging unit, 10Cn ... 1st housing | casing, 10Cp ... 2nd housing | casing, 10L ... Power supply line, 12 ... Imaging device, 14, 32 ... Communication interface part, 15, 31 ... Transmission / reception part, 16 ... Power supply, 17, 33 ... Power supply circuit, 18 ... Each speed sensor, 20 ... Buffer connection mechanism, 21 ... Gimbal mechanism, 21p-1, 21p-2, 21r-1, 21r-2, 21y-1, 21y-2, 23s, 24s, 25s, 26s ... sliding contacts, 21P, 21R, 21Y, 23-26 ... shaft, 22 ... parallel link mechanism, 22A ... rod-shaped member, 27 ... coupling portion fixing mechanism, 28 ... optical fiber, 30 ... main unit, 34 ... Control circuit, 36 ... Operating member, 41 ... Fixing mechanism, 42 ... Fixing claw, 51 ... Sphere joint, 51Ah, 51Bh ... Hole, 51A ... Shaft, 51B ... Body, 51b ... Sphere, 51R ... Sphere receiving part 52 ... Flat cable, 52S ... Spiral cable, 53 ... Cable, 61 ... Converter

Claims (10)

A first unit including an imaging unit;
A second unit including an operation part and a grip part;
Built-in balance mechanism characterized by comprising: a buffer connection mechanism for connecting the first unit and the second unit, and buffering the oscillation of one of the units and transmitting it to the other of the units camera. The camera with a built-in balance mechanism according to claim 1,
A fixing mechanism capable of fixing the first unit and the second unit in a state where the buffer coupling mechanism is housed between the first unit and the second unit. Camera with built-in balance mechanism. The camera with a built-in balance mechanism according to claim 1,
Among the first unit and the second unit, a power supply line for supplying power to the other unit from a power source built in one unit;
A camera with a built-in balance mechanism, comprising: communication means for performing communication between the first unit and the second unit. The camera with a built-in balance mechanism according to claim 3,
The buffer coupling mechanism is
A rotating shaft and an optical transmission path laid through the rotating shaft;
The communication means includes
A camera with a built-in balance mechanism that performs the communication via the optical transmission path. The camera with a built-in balance mechanism according to claim 4,
The rotating shaft of the buffer coupling mechanism is
A camera with a built-in balance mechanism, comprising a sliding contact connected to the power supply line. The camera with a built-in balance mechanism according to any one of claims 3 to 5,
The buffer coupling mechanism has a parallel link,
The power supply line along the parallel link is
A camera with a built-in balance lateral groove formed as a flat cable in which wirings are juxtaposed in the direction of the rotation axis of the parallel link. The camera with a built-in balance mechanism according to any one of claims 3 to 6,
The buffer coupling mechanism is
A support shaft on which the first unit is supported;
The power supply line is
A camera with a built-in balance mechanism, wherein the camera is formed in a spiral shape around the support shaft. The camera with a built-in balance mechanism according to any one of claims 1 to 7,
The buffer coupling mechanism is
A camera with a built-in balance mechanism, comprising a fixing mechanism that restricts at least one of swing directions by the buffer connection mechanism. The camera with a built-in balance mechanism according to any one of claims 1 to 6,
The first unit is:
A camera with a built-in balance mechanism, wherein the imaging unit is configured as a plurality of members whose relative positions in the optical axis direction are movable relative to each other. The camera with a built-in balance mechanism according to any one of claims 3 to 8,
The communication means includes
Built-in balance mechanism that forms a communication path with the device and performs communication control suitable for the device when communicating with devices other than the first unit and the second unit camera.

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