JP2007142695A - Camera system and head adaptor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a camera system provided with a head adaptor having a camera platform that allows even any types of camera heads to be universally mounted on it, and its head adaptor. <P>SOLUTION: First/second arms 211a, 212a are respectively provided toward a base 213a side from a mounting part 210a to which the camera head 1a is mounted. An adjustment 2111a is provided at the first arm 211a so as to allow the camera head 1a to be mounted on the camera platform part 21a, while adjusting a position in an optical-axis direction of a photographing lens of the camera head 1a. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a camera head having a photographing optical system and an image sensor, a camera body that receives the image signal from the camera head to which the camera head is detachably mounted, performs signal processing, and photographing by remote operation The present invention relates to a camera system including a head adapter used at the time of the above, and the head adapter.

  A camera system has been proposed in which a camera head equipped with a photographing optical system and an image sensor can be interchangeably attached to the camera body so that shooting can be performed with maximum use of the shooting function of the camera head. Yes. In such a camera system, usability is further improved if it is possible to take a picture by remote operation from the camera body by utilizing the fact that the camera head includes an imaging device. When photographing by remote control can be performed in this way, it is more convenient to have a pan head that can freely adjust the posture of the camera head.

  By the way, many pan heads with various ideas have been proposed conventionally (see, for example, Patent Documents 1 to 7). Most of them adjust the posture of the photographing device according to the remote operation, and some of them automatically adjust the posture of the pan head according to the field of view of the person wearing the glasses-type finder There is.

However, all of them move together with the camera body, and a pan head that adjusts the posture of only the camera head has not been proposed yet. The camera head to which the camera head is attached has a structure that can be freely attached to any type of camera lens mounted from a wide-angle shooting lens to a telephoto shooting lens. It is necessary to be. Otherwise, for example, when a camera head with a wide-angle shooting lens is mounted, even if the camera head posture can be adjusted appropriately, a camera head with a telephoto shooting lens is mounted. In such a case, the camera head may be too heavy or too long, making the posture unstable and falling.
JP-A-9-005878 Japanese Patent Laid-Open No. 10-104738 JP-A-7-049517 JP-A-7-209700 JP 7-294296 A JP-A-11-212474 Japanese Patent Laid-Open No. 9-322021

  SUMMARY OF THE INVENTION In view of the above circumstances, an object of the present invention is to provide a camera system including a head adapter having a pan head portion that can be freely attached to any type of camera head, and the head adapter. To do.

A camera system of the present invention that achieves the above object includes a camera head including a photographic lens and an image sensor,
A camera body that receives an image signal from a camera head that is detachably attached and performs signal processing, and a camera head that is separated from the camera body is detachably attached instead of the camera body. A head adapter having a pan head unit and a wireless transmission unit that wirelessly transmits an image signal received and received from the camera head to the camera body,
The head adapter includes an adjustment unit that adjusts a position of the camera lens mounted on the camera platform in the optical axis direction of the photographing lens.

  According to the camera system of the present invention, when the camera head is about to be attached to the head adapter having the camera platform, the adjustment unit provided in the head adapter causes the optical axis direction of the photographing lens of the camera head to The position of is adjusted.

  As a result, regardless of the type of camera head, when the user attaches a certain type of camera head to the head adapter, the adjustment unit adjusts the light of the photographing lens of the camera head according to the type. It can be mounted while adjusting the position in the axial direction. For example, when a user intends to wear a camera head equipped with a telephoto lens, the position is adjusted by the adjusting unit so that the center in the longitudinal direction of the telephoto lens coincides with the center of the pan head unit. It ’s fine.

  As described above, a camera system including a head adapter having a pan head portion that can be freely attached to any camera head is realized.

  As described above, the user may manually adjust the position of the camera head. However, if the position of the camera head is automatically adjusted, the burden on the user is reduced and the usability is further improved. improves.

Therefore, the camera head includes a storage unit that stores the center of gravity information of the camera head and a transmission unit that transmits the center of gravity information stored in the storage unit to the head adapter,
The head adapter includes a receiving unit that receives the center of gravity information of the camera head transmitted from the camera head,
The adjusting unit may automatically adjust the position of the camera lens attached to the camera platform in the optical axis direction of the camera lens based on the center-of-gravity information received by the receiving unit.

  Then, when any one of the types of camera heads is mounted, the center-of-gravity information transmitted from the transmitter included in the camera head is received by the receiver included in the head adapter, and The position of the photographing lens in the optical axis direction is automatically adjusted.

  In this way, the user only needs to attach to the head adapter regardless of the camera head, and thereafter, the adjustment unit provided in the head adapter has a stable posture based on the center of gravity information. The position of the camera head in the optical axis direction is automatically adjusted.

  The pan head part preferably includes a base and a pair of arms that extend outwardly from the base and support the camera head from both sides.

  If the camera head is supported from both sides by the pair of arms so that a stable posture can be maintained by the base, the camera head is firmly supported.

  Further, each of the arm portions constituting the pair of arm portions is configured by sequentially connecting a plurality of arms, and it is preferable that the posture or position of each of the plurality of arms is freely adjusted. .

  When each of the pair of arm portions is configured by sequentially connecting a plurality of arms, the adjustment portion can be adaptively adjusted according to the shape and weight of various types of camera heads.

In the head adapter of the present invention that achieves the above-described object, a camera head including a photographing lens and an image sensor receives an image signal from the camera head that is detachably mounted and performs signal processing. A head adapter having a pan head part that is detachably mounted instead of the camera body, and a wireless transmission part that wirelessly transmits an image signal received and received from the camera head to the camera body,
The camera head mounted on the camera platform includes an adjusting unit that adjusts the position of the photographing lens in the optical axis direction.

  As described above, a head adapter having a pan head function that can be freely attached to any kind of camera head is realized.

  As described above, a camera system including a head adapter having a pan head portion that can be freely attached to any type of camera head and the head adapter are realized.

  Embodiments of the present invention will be described below.

  1 to 4 are diagrams illustrating the configuration of a camera system according to an embodiment of the present invention.

  The camera system 1 shown in FIGS. 1 and 3 is provided with a head adapter 2a and a main body adapter 2b that are detachably mounted when photographing by remote operation. If these adapters 2a and 2b are attached, it is possible to perform photographing by remote control as shown in FIG. 3, but first, referring to FIGS. 1 and 2, the camera head 1a is attached to the camera body 1b. The configuration and operation of the camera system when the camera head is in the closed state will be described, and then the configuration and operation when photographing with the camera head by remote operation from the camera body side will be described with reference to FIGS.

  As shown in FIG. 1, a camera system 1 according to this embodiment includes a camera head 1a having a photographing optical system and an image sensor, and an interface for inputting / outputting signals between the camera head 1a. And a camera body 1b that receives an image signal from 1a. FIG. 1 shows separately a camera head 1a having a photographing optical system and an image sensor, and a camera body 1b to which the camera head 1a is detachably attached. The camera head 1a shown in FIG. 1 is one of a plurality of types, and any other camera head can be attached to the camera body.

  In the center of the camera body 1b shown in FIG. 1, a mount portion 10b having a large number of mount contacts is arranged to receive the end of the camera head 1a. A number of mount contacts are also provided at the end of the camera head 1a, and the end of the camera head 1a is along the one-dot chain line in FIG. It is inserted and attached to.

  Each of the mount contacts is assigned for communication and power supply, and communication from the camera body 1b to the camera head 1a is performed, or from the camera head 1a to the camera body 1b. Or the power supply from the camera body 1b to the camera head 1a is performed. Among these mount contacts, contacts corresponding to the interfaces provided on both sides and contacts corresponding to two dedicated lines for supplying a release signal from the camera body 1b to the camera head 1a and the camera head 1a are connected. There are also contacts for notifying the camera body 1b of this.

  An AWB sensor 11b is provided above the head mount 10b, and a light source type at the time of photographing is detected by the AWB sensor 11b. This light source type is, for example, whether it is sunlight or a fluorescent lamp, and this light source type is detected by the AWB sensor 11b and an appropriate color temperature (for example, in the case of sunlight) for a signal processing unit described later. Is set to 6000K, and in the case of a fluorescent lamp, 4500K) is set, and the optimum white balance is adjusted. A flash light emission window 12b is provided beside the AWB sensor 11b, and a flash light emission unit for emitting a flash light through the flash light emission window 12b is provided in the camera body 1b. Further, a release button 13b and a mode dial 14b are provided on the upper surface of the camera body 1b. The mode dial 14b selects a shooting mode and a playback mode. In the shooting mode, a still image shooting mode or a moving image shooting mode is further selected. The mode dial 14b is also provided with a power switch, and the power is turned on by operating the mode dial 14b.

  Here, the internal configuration of the camera head 1a and the camera body 1b will be described with reference to FIG.

  FIG. 2 is a block diagram showing an electrical system when the camera head 1a is attached to the camera body 1b.

  The left side of FIG. 2 shows the electrical system on the camera head 1a side, and the right side of FIG. 2 shows the electrical system on the camera body 1b side.

  Before describing the image signal processing system of both the camera head 1a and the camera body 1b, the configuration around the battery Bt, which is a power supply source for operating the camera system 1, will be described.

  The camera system 1 according to this embodiment is configured such that the camera body 1b and the camera head 1a operate upon receiving power from a battery Bt included in the camera body 1b.

  In FIG. 2, a power management unit 180b is provided between the battery Bt and the DC / DC converter 181b of the camera body 1b, and the key 19b (the shooting mode dial 14b shown in FIG. 1 is also included in this key. When a switch in the power management unit 180b is connected by operating a power switch in the power supply switch, power is supplied to a DC / DC converter (shown as DC / DC in FIG. 2) 181b. A configuration is shown in which power is supplied to each part from the DC / DC converter 181b and the camera body 1b is in an operating state.

  When the power switch is thus operated and the camera body 1b is in an operating state, control of the operation of the camera is started by the body CPU 100b. At this time, if the ground signal (GND) is supplied from the camera head 1a side to the detection terminal (Det) of the main body CPU 100b, the main body CPU 100b detects that the camera head 1a is attached.

  With this configuration, when the camera head 1a is attached to the camera body 1b and the power switch in the Key / LED (including the shooting mode dial 14b) 19b is turned on, When the ground signal (GND) is supplied to the detection terminal (Det), the main body CPU 100b can detect the mounting of the camera head 1a and switch the switch SW to supply power to the camera head 1a side. By switching the switch SW, the battery Bt on the camera body 1b side, the power management unit 195a on the camera head 1a side, and the DC / DC converter 196a are connected. In this way, if the camera head 1a is attached when the power switch is turned on, power is supplied from the battery Bt of the camera body 1b to the camera head 1a.

  Further, when the main body CPU 100b detects the mounting of the camera head 1a and automatically supplies power to the camera head 1a as described above, the main body CPU 100b has a low-speed serial interface (hereinafter referred to as a low-speed serial I / F) when the power is turned on. The head CPU 19a can be requested to transmit initialization information by controlling 150a. When initialization information is transmitted from the head CPU 19a on the camera head 1a side that has received the transmission request, the camera receives the request. An initialization process corresponding to the type of the head 1a can also be executed. When the power-on mode is the shooting mode after the initialization process is completed, the main body CPU 100b issues a transmission request for an image signal for display (hereinafter referred to as a through image) following the transmission request for the initialization process. It is also possible to transmit to the camera head 1a using the low-speed serial I / F 110b. In the following description, the image signal representing the through image is referred to as a through image signal.

  When the head CPU on the camera head side receives a through image transmission request from the camera body via the low-speed serial I / F 150a, the head CPU 19a controls the timing generator (hereinafter referred to as TG) 17a to control the image sensor (here. In this case, since a CCD solid-state imaging device is used, a through image signal can be generated at a predetermined frame rate by a CCD 12).

  Here, the configuration and operation of the camera system 1 will be described in detail.

  As shown in FIG. 2, the camera head 1a constituting the camera system 1 includes a photographing optical system 11a and a CCD 12a. In the photographing optical system 11a, a zoom lens 111a, a focus lens 112a, a diaphragm 113a, a mechanical shutter 114a, and the like are provided. After power is supplied from the camera body 1b to the camera head 1a, when the camera mode 1b is supplied from the camera body 1b via the low-speed serial I / F 150a, the mechanical shutter 114a is first driven by the driver DR. The light receiving surface of the CCD 12a is opened, and a shooting standby state is set.

  When a transmission request for a through image signal is further transmitted, the head CPU 19a controls the TG 17a to supply an exposure start and exposure end signal to the CCD 12a to start generating image data. At this time, a timing signal is also supplied from the TG 17a to the subsequent CDS 13a and the A / D unit 14a so that the processing timing of the image signal is matched. In the CDS 13a, noise of the image signal (analog RGB signal) output from the CCD 12a is reduced, and in the A / D section 14a, the analog RGB signal is converted into a digital RGB signal, and the subsequent high-speed operation is performed. The digital RGB signal is supplied to the serial I / F 15a and transmitted to the camera body 1b side. The digital RGB signals are also supplied to the subsequent integration block 16a, where focus adjustment and exposure adjustment are performed.

  In creating a live view image, a sharp and focused image with adjusted exposure must be formed on the light receiving surface of the CCD 12a, so that the head CPU 19a is able to adjust the exposure adjustment result and focus of the integration block 16a. According to the detection result, the driver DR is instructed to adjust the position of the focus lens 112a or the aperture diameter of the diaphragm 113a to always form a sharp and focused image on the light receiving surface of the CCD 12a. I am doing so. When the focus lens 112a is arranged at the in-focus position, the head CPU 19a receives a position signal from the position detection unit 115a and instructs the driver DR when it determines that the focus lens 112a is arranged at the in-focus position. The driving of the immediate focus lens 112a is stopped.

  Here, in synchronization with the timing signal from the TG 17a, the through image signal is output from the CCD 12a to the CDS 13a at a frame rate of 1 / 30s so that the CDS 13a performs noise reduction processing, etc., and then the A / D unit 14a in the subsequent stage. The analog through image signal is converted into a digital through image signal and supplied to the high-speed serial I / F 15a. Through the high-speed serial I / F 15a, a through image signal that is a digital signal is transmitted to the main body of the camera 1b. Of course, since the high-speed serial I / F 15a is also provided on the camera body 1b side, the through image signal is transmitted from the camera head 1a to the camera body 1b by both high-speed serial I / Fs 15a and 102b. Among the image signals supplied to the camera body 1b through the high-speed serial I / Fs 15a and 102b, the shooting mode is selected by the mode dial 14b (see FIG. 1; included in the Key 19b in FIG. 2). In addition to the above-mentioned through-image signal for displaying on the LCD panel or EVF (Electrical ViewFinder) not shown, the subject captured by the taking lens in the taking optical system when in the shooting state, An image signal representing a still image obtained by operating the release button 13b when the still image shooting mode is selected (hereinafter referred to as a still image signal) or a moving image mode in the shooting mode is selected. Sometimes there is an image signal (hereinafter referred to as a moving image signal) representing a moving image obtained by operating the release button 13b. Any one of these image signals is transmitted to the camera body 1b side through the high-speed serial interfaces 15a and 102b in response to a request from the camera body 1b side. Note that the high-speed serial interfaces 15a and 102b of this embodiment include a clock line (CLK) that supplies a clock for synchronization and two-channel image data lines (DATA # 1, DATA # 2).

  The flash ROM 191a stores a program indicating the operation procedure of the camera head 1a, and also stores configuration information of the camera head 1a. If a command indicating a transmission request for initialization information is transmitted from the camera body 1b via the low-speed serial I / F 110b, 150a, the configuration information in the flash ROM 191a is transmitted to the camera via the low-speed serial I / F 150a, 110b. It is transmitted to the main body 1b.

  The low-speed serial I / Fs 150a and 110b exchange commands between the camera body 1b and the camera head 1a during shooting. For example, the camera body 1b receives image signals (through image signals, still image signals, If a command corresponding to a request for transmission of any one of the video signals is transmitted via the low-speed serial I / F 150a, 110b, a high-speed serial I / F that is faster than the low-speed serial I / F 150a, 110b. An image signal (any one of a through image signal, a still image signal, and a moving image signal) converted into a digital signal by F15a and 102b is transmitted to the camera body 1b. In FIG. 2, the term “image channel” means that an image signal is transmitted from the camera head 1a to the camera body 1b by the high-speed serial I / F 15a, 102b connecting the camera body 1b and the camera head 1a. The term “control channel” means that control signals are transmitted and received between the camera head 1a and the camera body 1b by the low-speed serial I / Fs 150a and 110b, and the release signal from the release button 13b is transmitted through a dedicated line. This is indicated by the term dedicated signal line.

  In this way, the camera head 1a is mounted on the camera body 1b, and the camera system 1 is configured, and photographing is performed by the camera system 1.

  Further, in the camera system 1 of the present embodiment, the camera head 1a and the camera are arranged such that even if the camera main body 1b and the camera head 1a are separated, the camera head performs shooting by remote operation from the camera main body side. Both the main body 1b includes a head adapter 2a and a main body adapter 2b each having a wireless communication unit.

  FIG. 3 shows that the camera head 1a and the camera body 1b constituting the camera system shown in FIG. 1 are separately arranged, and an operation signal is wirelessly transmitted from the camera body 1b to the camera head 1a at a position away from the camera body 1b. It is a figure which shows the structure when imaging | photography by remote control.

  In FIG. 3, the camera head 1a in a state separated from the camera body 1b is detachably mounted in place of the camera body 1b, and a wireless communication unit that receives an image signal from the camera head 1a and performs signal processing. The head adapter 2a provided with a unit (only the antenna 251a for wireless communication is shown in FIG. 3) is shown. As shown in FIG. 3, when the camera head 1a is in a separated state, the camera body 1b is also mounted with a body adapter 2b instead of the camera head 1a, and the camera head 1a is mounted on the camera body 1b in the same manner. Shooting is performed.

  First, before describing the structure, the internal configuration of the head adapter 2a will be briefly described.

  FIG. 4 is a diagram showing an internal configuration of the head adapter 2a attached to the camera head 1a.

  The head adapter 2a shown in FIG. 4 includes a battery Bt2. When the head adapter 2a is attached instead of the camera body 1b, power is supplied from the battery Bt2 to the camera head 1a in the same manner as the camera body 1b. .

  Similar to the camera body 1b, the head adapter 2a includes a high-speed serial I / F 21a for image signal communication with the camera head 1a and a low-speed serial I / F 29a for control signal communication provided in the camera body 1b.

  The high-speed serial I / F 21a and the low-speed serial I / F 29a are connected to the head adapter CPU 20a via a bus. The bus also includes a flash ROM 203a in which a program indicating a processing procedure of the program is stored and an SDRAM 23a serving as a buffer memory. It is connected.

  Here, the head adapter CPU 20a receives the image signal from the camera head 1a by controlling the high-speed serial I / F 21a according to the processing procedure in the flash ROM 203a, and supplies the received image signal to the signal processing unit 22a. Processing for storing the image signal, which has been subjected to signal processing in the processing unit 22a, in the SDRAM 23a is performed. When the image signal is further stored, this time it is read from the SDRAM 23a and supplied to the head-side signal mediating unit 24a, and the head-side signal mediating unit 24a is converted into a signal suitable for wireless transmission before the head side. The wireless communication unit 25a transmits the image signal to the camera body 1b (see FIG. 3) side. The head-side wireless communication unit 25a corresponds to the wireless transmission unit referred to in the present invention.

  As shown in FIG. 3, on the camera body 1b side, the photographing process is performed in the same manner as when the image data transmitted from the camera head side is received and mounted via the body adapter 2b having the same function as the head side adapter 2a. Is done.

  Next, the structure of the head adapter 2a having an adjusting unit for adjusting the position of the photographing lens of the camera head 1a, which is a feature of the present invention, in the optical axis direction will be described with reference to FIGS.

  FIG. 5 is a diagram for explaining the structure of a head adapter 2a having a camera platform 21a to which the camera head 1a is attached and a wireless communication unit 25a that wirelessly transmits image data to the camera body side. In this example, in order to indicate that a wireless communication unit is provided in the mounting unit 210a, an antenna 251a that constitutes a part of the wireless communication unit is illustrated. .

  As shown in FIGS. 3 and 5, a head unit 21a provided in the head adapter 2a includes a base 213a that is rotatable and a mounting part 210a to which the camera head 1a is mounted so as to extend upward from the base 213a. Arm portions 212a and 211a reaching the upper limit. In this example, a second arm portion 212a is first provided so as to extend upward from the base 213a, and a direction substantially orthogonal to the second arm portion 212a from the distal end portion of the second arm portion 212a. Is provided with a first arm portion 211a. A mounting portion 210a to which the camera head 1a is mounted is configured at the tip of the first arm portion 211a. When the camera head 1a is attached to the attachment portion 210a, the camera head 1a is supported by the arm portions 212a and 211a extending from the base 213a to the camera head 1a side. In FIG. 3, reference numerals are assigned in order from the top with respect to the camera head 1 a side, and names are given as first and second from the top to the bottom.

  Both the first and second arm portions 211a and 212a are provided with adjusting portions 2111a and 2121a for adjusting the length, and the length of the second arm portion 212a is adjusted by the adjusting portion 2121a of the second arm portion 212a. Is adjusted, the height is changed, and when the length of the first arm portion 211a is adjusted by the adjusting portion 2111a of the first arm portion 211a, the position of the photographing lens in the optical axis direction is changed. The adjusting unit 2111a provided in the first arm portion 211a corresponds to an adjusting unit that adjusts the position of the photographing lens of the camera head in the optical axis direction according to the present invention.

  By doing so, the center of gravity of the camera head shown in FIG. 5B can be obtained by adjusting the position of the camera head in the direction of the arrow in FIG. 5 regardless of what camera head is attached to the head adapter 2a. G can be positioned at the rotation center C of the base 213. The height direction is adjusted while maintaining the center of gravity. In addition, you may provide an angle adjustment part in the part which has connected the 1st arm part 211a and the 2nd arm part 212a, and in that case, both the angle adjustment part and the adjustment part 2111a adjust well. By doing so, the position of the photographing lens in the optical axis direction is adjusted.

  As described above, when the position of the photographic lens of the camera head 1a in the optical axis direction is freely adjusted by the adjustment unit, the adjustment unit 2111a is adjusted regardless of the type of the camera head 1a. Thus, the posture of the camera head 1a can be adjusted so that the center of gravity of the camera head 1a is positioned at the center C of the base 213a provided in the camera platform 21a, that is, in a stable posture.

  The adjustment unit 2111a provided on the first arm portion 211a may be a manual one like the head adapter 2a shown in FIGS. 3 and 5, but the adjustment unit automatically illuminates the position of the camera head. If the adjustment is made in the axial direction, the user needs only a simple operation of mounting the camera head on the head adapter.

  FIG. 6 is a diagram showing a configuration in which a built-in motor is provided in the first arm portion so that the length of the first arm portion 211am can be automatically adjusted by the connecting gear. These are figures which show the structure inside the head adapter 2am of FIG.

  In FIG. 6, it is improved so that the position of the camera head 1a in the optical axis direction can be automatically adjusted by engaging the gear head GH of the motor with the hollow gear GEAR provided in the first arm portion 211am.

  In this example, as shown in FIG. 5B, the center of gravity G of the camera head 1a is automatically matched with the rotation center C of the base 213a provided in the pan head unit. The adapter CPU 20a acquires the center of gravity information stored in the flash ROM 191a on the camera head 1a side via the serial I / Fs 150a and 29a, and rotates the motor based on the acquired center of gravity information to adjust the length of the first arm portion. Like to do. For this reason, the design specifications of the camera head 1a are included in the above-described configuration, and the center of gravity information such as the axial length and weight of the camera head is written in the design specifications. Yes.

  In order to obtain further accuracy, the head adapter CPU 20a receives the encoder signal (position indicating signal) from the encoder 202a when the head adapter CPU 20a instructs the motor driver 200a to rotate the motor 201a according to the acquired center-of-gravity information. The position of the camera head 1a is also accurately positioned at the center of the base 213a (see FIG. 5B).

  The flash ROM 191a of the camera head 1a shown in FIG. 7 corresponds to the storage unit according to the present invention, and the transmission unit and the reception unit according to the present invention correspond to the low-speed serial I / Fs 150a and 29a. In this example, the head adapter CPU 20a, the driver 200a, the motor 201a, and the encoder 202a correspond to the adjusting unit according to the present invention.

  FIG. 8 is a diagram showing another example of the head adapter 3a.

  FIG. 8 is a diagram showing an example in which the head adapter 3a is further improved to a more stable structure in order to prevent a fall or the like from occurring when the position of the camera head is adjusted.

  3, 5, and 6, the arm portion is provided only on one side and the camera head is supported by the one arm portion. As shown in the example of FIG. 8, If the arm portions 310a, 320a, 330a and 311a, 321a, 331a are provided, the stability is further improved. In the example of FIG. 8, the camera head 1 a mounted on the mounting unit 30 a can be supported by a pair of arms extending from both sides so as to project outward from the base 340 a included in the pan head unit. It has been improved.

  The center of gravity position can also be obtained by providing a CPU (not shown), a motor, and two gears 36 and 37 meshing with the gear head 35 of the motor in the base 313 and extending and contracting in the direction of the arrow in FIG. It has been improved to adjust. Here, adjustment in the optical axis direction of the photographing lens can be manually performed, and adjustment can be performed with a more stable structure.

  In this way, the posture of the camera head 1a when it is attached or when the position of the photographic lens of the camera head 1a in the optical axis direction is adjusted becomes more stable.

  FIG. 9 is also a diagram showing another example of the head adapter.

  The head adapter 4a shown in FIG. 9 is provided with a pair of arm portions 42a so as to extend obliquely upward from the base 43a, and further toward the base 43a from the vicinity of the center of a connecting rod 44a that connects the arms. The support rod 45a is provided so as to extend.

  Furthermore, slide rods 41a that extend and contract are respectively inserted into the pair of arm portions 42a, and mounting portions 40a for mounting the camera head 1a are provided at the tips of the slide rods 41a. When the camera head 1a mounted by the expansion / contraction operation of the slide bar 41a moves obliquely, the position of the photographing lens of the camera head 1a in the optical axis direction is adjusted. Furthermore, in this example, the slide bar 41a that can be expanded and contracted is retracted inside the arm 42a, and the support bar 45a is folded so that it can be carried in a compact shape. Yes. You may do this.

It is a figure explaining the structure of the camera system which is one Embodiment of this invention, and is a figure which shows an external appearance when a camera head is mounted | worn with a camera main body and imaging | photography is performed. It is a block diagram which shows the structure inside a camera system when it exists in the state of FIG. It is a figure explaining the structure of the camera system which is one Embodiment of this invention, and is a figure which shows an external appearance when a camera head is isolate | separated from a camera main body and imaging | photography is performed. It is a block diagram which shows the internal structure by the side of the camera head of a camera system in the state of FIG. It is a figure which shows the structure of a head adapter. It is a figure which shows 2nd Embodiment. It is a figure which shows the internal structure of the camera head and head adapter shown in FIG. It is a figure which shows another example of the structure of a head adapter. It is a figure which shows another example of the structure of a head adapter.

Explanation of symbols

1 camera system 1a camera head 11a photographing optical system 12a CCD
13a CDS
14a A / D section 15a High-speed serial I / F
150a Low speed serial I / F
16a Integration block 17a TG
18a SDRAM
19a Head CPU
191a FlashROM
195a Power management unit 196a DC / DC converter 2a Head adapter 21a Head unit 211 First arm unit 2111a Adjustment unit 212a Second arm unit 2121a Adjustment unit 213a Base 20a Head adapter CPU
203a FLASHROM
21a High-speed serial I / F
22a Signal processor 23a SDRAM
231a JPEG compression / decompression unit 24a Head side signal mediation unit 25a Head side wireless communication unit 251a Antenna 26a Power management unit 27a DC / DC converter 29a Low speed serial I / F
Bt Bt2 battery

Claims (5)

A camera head including a photographic lens and an image sensor;
A camera body that receives and processes image signals from a camera head that is detachably mounted and mounted, and a camera head that is separated from the camera body is detachably mounted instead of the camera body. A head adapter having a pan head unit and a wireless transmission unit that wirelessly transmits an image signal received and received from the camera head to the camera body,
The camera system according to claim 1, wherein the head adapter includes an adjustment unit that adjusts a position of the camera lens mounted on the camera platform in the optical axis direction of the photographing lens. The camera head includes a storage unit that stores the center of gravity information of the camera head, and a transmission unit that transmits the center of gravity information stored in the storage unit toward the head adapter.
The head adapter includes a receiving unit that receives the center of gravity information of the camera head transmitted from the camera head,
The adjusting unit automatically adjusts the position of the camera lens mounted on the pan head unit in the optical axis direction of the camera lens based on the center-of-gravity information received by the receiving unit. The camera system according to claim 1.   The head unit includes a base and a pair of arms that extend outward from the base and support the camera head from both sides. Item 3. The camera system according to Item 1 or 2.   Each of the arm portions constituting the pair of arm portions is configured by sequentially connecting a plurality of arms, and the posture or position of each of the plurality of arms is freely adjusted. The camera system according to claim 3. A camera head having a photographic lens and an image sensor is detachably mounted on the camera head instead of the camera body that receives the image signal from the camera head to which the camera head is detachably mounted and mounted. A head adapter including a wireless transmission unit that wirelessly transmits an image signal received and received from the camera head to the camera body,
A head adapter comprising: an adjustment unit that adjusts a position of a camera head mounted on the camera platform in the optical axis direction of the photographing lens.

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