JP2013162430A - Support device for imaging apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a support device for an imaging apparatus in which installation balance can be adjusted promptly by making a mass balanced state visible when installing the imaging apparatus.SOLUTION: A support device for supporting an imaging apparatus comprises a moving section which moves the support device, at least two or more pressure detection sections, an arithmetic section and a display section. A state of supporting the imaging apparatus is detected by the pressure detection sections, and the detection state at that time is displayed on the display section.

Description

  The present invention relates to a support device for an imaging device in a broadcasting equipment product.

  When photographing using a photographing device, the photographing device is attached to a tripod or the like. At this time, in order to increase the responsiveness during operation of the imaging device and to capture images that do not feel uncomfortable to the viewer, it is necessary that the mass of the entire imaging device be balanced with respect to the operation rotation axis of the tripod. Become.

  However, the act of balancing the position of the center of gravity of the imaging device requires an adjustment action every time the equipment is installed, and it takes time, because the center of gravity position of the entire imaging device and the value of the total mass change depending on the shooting opportunity. It had the problem that.

  For example, Patent Document 1 discloses a structure in which an adjustable balance weight can be attached to the camera body in order to prevent the operation balance of the imaging apparatus from being out of order due to the influence of an optical device added to the front side of the imaging apparatus.

  Further, Patent Document 2 discloses a structure in which a weight can be attached to a camera grip portion so that an operation balance that varies depending on the combination of equipment can be corrected in order to adjust the position of the center of gravity of an imaging device installed on a tripod.

JP-A-9-265131 (TV camera device) JP 2007-124008 A (Balance mechanism of television camera)

  However, with the prior art disclosed in the above-mentioned patent documents, when the optical device for changing the video effect is temporarily added for shooting or when the combination of the zoom lens and the camera is changed, the shooting is performed. The mass balance state desirable for the user's operation will be upset.

  For this correction, it was necessary to perform an operation for returning to an optimum mass balance state while adding a weight corresponding to the mass of the optical equipment to be added.

  For example, in the case of Patent Document 1, when an adapter to be added to the imaging device is inserted / removed during shooting, it is necessary to rebalance the operation. However, since balancing is a structure that is completed only by a plurality of manual operations, It is not possible to quickly balance the installation.

  Similarly, in the case of Patent Document 2, since the mounting of the balance weight and the balancing when the tripod is fixed are performed separately, the balancing at the time of installation cannot be performed quickly.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a support device for an image pickup apparatus that can quickly adjust the installation balance by making the mass balance state visible when the image pickup apparatus is installed.

  In order to achieve the above object, the present invention provides a support device for supporting an imaging apparatus, comprising a moving unit that moves the support device, at least two pressure detection unit calculation units, and a display unit. The state is detected by the pressure detection unit, and the detection state at that time is displayed on the display unit.

  According to the present invention, it is possible to provide a support device for an imaging apparatus that enables a center of gravity position correcting operation to be quickly performed by a display unit that allows a photographer to grasp an optimal adjustment position of the center of gravity balance when the imaging apparatus is installed. be able to.

Schematic showing the entire system of the support device for the imaging apparatus according to the first embodiment Flow diagram of mass balance operation in the first embodiment Explanatory drawing of the display part in 1st Example Schematic which shows the whole system of the support apparatus of the imaging device which is a 2nd Example. Flow diagram of mass balance operation in the second embodiment Schematic (1) which shows the whole system of the support apparatus of the imaging device which is a 3rd Example. Schematic showing the entire system of a support device for an image pickup apparatus according to the third embodiment (No. 2) Schematic showing the entire system of the support device of the image pickup apparatus which is the third embodiment (No. 3) Schematic (4) which shows the whole system of the support apparatus of the imaging device which is a 3rd Example. Flow diagram of mass balance operation in the third embodiment

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1A is a diagram illustrating the structure of a support device for an imaging apparatus according to an embodiment of the present invention. FIG. 1B is a diagram for explaining the device fixing state in the procedure of the mass balance adjustment operation of the imaging apparatus, FIG. 2 is a flowchart for explaining the procedure of the mass balance adjustment operation, and FIG. It is explanatory drawing which shows the specific example of a display part.

  Hereinafter, with reference to FIGS. 1 to 3, a support device for an imaging apparatus according to a first embodiment of the present invention will be described.

  1 is a zoom lens, 2 is a camera, 3 is a support device having a configuration described later, 4 is an installation member, 5 is a movable member, 6 is a camera fixing member, 7 is a movable member fixing knob, 8 is a pressure detection member, and 9 is a display. Members 10 are arithmetic units.

  As shown in FIG. 1A, the imaging device using the zoom lens 1 and the camera 2 is fixed to an installation member 4 such as a tripod or a pedestal via a support device 3, so that a photographing action is performed.

  The support device 3 includes a movable member 5, a camera fixing member 6, a movable member fixing knob 7, a plurality of pressure detection members 8 a and 8 b, a display member 9, a calculation unit 10 housed in a housing, and a power supply unit that supplies the calculation unit 11. The computing unit 10 at this time is configured to have a storage area for predetermined information.

  Next, the mass balance operation when the imaging device is fixed to the installation member 4 will be described with reference to FIGS. As shown in FIG. 1B, the operation flow shown in FIG. 2 will be described in a state where the imaging apparatus is fixed to the installation member 4 and installed in a state where a desirable mass position balance is not achieved. .

  The imaging device is fixed to the support device 3 (0101), and the power is turned on in a state in which these are fixed to the installation member 4 (0102) (0103).

  Then, the mass balance state that is easy for the photographer to operate is used as a threshold value, and the output (0104) of the pressure detection units 8a and 8b is used as an input value, and the calculation unit 10 calculates whether the calculation result with respect to the threshold value is large or equivalent. (0105).

  In accordance with the above-described result, display on the display member 9 is performed according to the display method described later (0106).

  When the calculated value of the difference between the output values of the pressure detectors 8a and 8b does not fall within a predetermined threshold value, the calculated value is returned as display information that is not within the threshold value.

  The photographer confirms the display member 9, and then moves the movable member 5 until a wearing state in which mass balance is achieved as shown in FIG. 1A (0107).

  If the photographer continues the mass balance operation while checking the display member 9, the calculated value of the calculation unit 10 will eventually fall within a predetermined threshold value, and a calculated value indicating that the calculated value is within the threshold value is returned. The operation is completed (0108).

  When the photographer finishes the desired mass balance operation, the movable member 5 is maintained in a state where the mass balance is maintained by operating the movable member fixing knob 7, and based on smooth operation of the imaging device in all the operation directions. It is possible to perform a shooting act.

  Through the series of operations described above, the photographer can perform the mass balance operation while confirming the current state of the mass balance. Therefore, this can be accomplished quickly without performing trial and error as in the prior art.

  An example of the calculation value display method of the calculation unit 10 when the mass balance state in which the photographer can ensure good operability is set as a threshold is as follows.

  For example, α is defined as 8a> 8b, β is defined as 8a = 8b in a range including an error within a certain threshold, and γ is defined as 8a <8b. From the side, the display unit 9 displays α, β, and γ in this order.

  Then, the photographer who performs mass balance adjustment can grasp where the position of the center of gravity of the photographed image value is biased, and is in a state where the mass balance is achieved by driving the movable member 5 in a direction to correct this. The adjustment can be completed by relying on the β display.

As a specific example of displaying the above definition, as shown in FIGS. 3A to 3C, the value of α may be expressed as a negative value, the value of β as 0, and γ as a positive value. Is possible.
Also, as shown in FIG. 3D, α is an arrow indicating the objective side of the imaging device, β is an arbitrary graphic shape, and γ is an arrow indicating the imaging device side, and these combinations also function.

  According to the above-described embodiment, the photographer can make an adjustment while visually observing the mass balance state of the imaging apparatus, and an effect of enabling a quick mass balance adjustment operation can be obtained.

  Hereinafter, with reference to FIGS. 4 and 5, a support device for an imaging apparatus according to a second embodiment of the present invention will be described using the same reference numerals with respect to the same configuration as in the first embodiment.

  1 is a zoom lens, 2 is a camera, 4 is an installation member, 9 is a display member, 10 is a calculation unit, 12 is a support device having a configuration described later, 13 is a movable member, 14 is a lens fixing member, and 15 is lens / camera information. An input unit, 16 is a position detection means, 17 is a drive mechanism means, and 18 is a cable.

  As shown in FIG. 4A, the imaging device using the zoom lens 1 and the camera 2 is fixed to an installation member 4 such as a tripod or a pedestal via a support device 12 so that a photographing action is performed.

  The support device 12 includes a movable member 13, a lens fixing member 14, a plurality of pressure detection members 8 a and 8 b, a display member 9, a calculation unit 10 housed in a housing, a power supply unit 11 supplied to the calculation unit, and lens / camera information The input unit 15 is configured.

  Further, the movable member 13 can be electrically driven and controlled by the position detection means 16 and the drive mechanism means 17 using the electric power supplied from the power supply unit 11.

  Next, the mass balance operation when the imaging device is fixed to the installation member 4 will be described with reference to FIGS.

  As illustrated in FIG. 4B, the operation flow illustrated in FIG. 5 is described in a state where the imaging apparatus is fixed to the installation member 4 and is installed in a state where a desirable mass position balance is not achieved. .

  The image pickup device is first attached to the lens fixing member 14 and then fixed to the support device 12 (0201). Further, the lens / camera information input unit 15 is attached to the lens / camera information input unit 15 to the lens 18 or the cable 18 laid on the camera. (0202).

  The power is turned on (0204) in a state where these are fixed to the installation member 4 (0203).

  Then, from the lens / camera information obtained via the lens / camera information input unit 15 (0205), the optimum mass balance position in the camera / lens combination stored in the calculation unit 10 is read out, and the position detection means Sixteen target values are determined (0206).

  The movable member 13 is driven by the drive mechanism unit 17 until the output value of the position detection unit 16 matches the target value described above, whereby the initial adjustment of the mass balance operation of the imaging apparatus is performed (0207).

  At this time, in the same manner as in the first embodiment, the output (0208) of the pressure detection units 8a and 8b is used as an input value, and the calculation unit 10 calculates whether or not the threshold value is corrected (0209) and displays on the display member 9 (0210). ), The photographer can check the mass balance.

  For example, when an operation accessory such as a light or a monitor is attached to an imaging device such as a lens / camera, the calculated value of the output value difference of the pressure detectors 8a and 8b is a predetermined mass balance state. Since it does not fall within the threshold value, the calculated value is returned as display information not within the threshold value.

  The display member 9 is displayed so as to indicate the inside and outside of the threshold as described in detail in the first embodiment, and is driven so as to become a predetermined threshold indicating that the pressure detectors 8a and 8b are in a mass balanced state. The mechanism means 17 is corrected and controlled so as to satisfy the mass balance state by driving the movable member 13 (0211).

  By performing the above operation, the photographer wears the imaging device and turns on the power, so that the support device of the imaging device according to the present proposal maintains the mass balance state as shown in FIG. Correction control is executed for the state (0212).

  In addition, even when equipment other than lenses / cameras is mounted on the imaging device and there is a variation in the mass balance state, it is possible to ensure a mass balance state in which the correction operation is automatically performed and the photographing operation of the photographer is optimal. It becomes.

  The photographer can grasp the series of states through the display means, and can operate while confirming the completion status of the mass balance correction operation one by one.

  According to the above-described embodiment, the photographer not only adjusts to the optimal mass balance position by simply mounting the imaging device, but also adjusts the additional added mass to the optimal mass balance position. In this state, it is possible to operate the imaging apparatus.

  6A, FIG. 6B, FIG. 6C, FIG. 6D, and FIG. 7, regarding the support apparatus of the image pickup apparatus according to the third embodiment of the present invention, the same configuration contents as those in Embodiments 1 and 2. Will be described using the same numbers.

  1 is a zoom lens, 2 is a camera, 4 is an installation member, 9 is a display member, 10 is a calculation unit, 19 is a support device having a configuration described later, 15 is a lens / camera information input unit, 16 is position detection means, and 17 is Drive mechanism means, 18 is a cable, 20 is a movable member, 21 is a lens fixing member, and 22 is a weight portion.

  As shown in FIG. 6A, the imaging device using the zoom lens 1 and the camera 2 is fixed to an installation member 4 such as a tripod or a pedestal via a support device 19 so that a photographing action is performed.

  The support device 19 includes a movable member 20, a lens fixing member 21, a plurality of pressure detection members 8 a and 8 b, a display member 9, a calculation unit 10 housed in a housing, a power supply unit 11 supplied to the calculation unit, and lens / camera information. The input unit 15 is configured.

  Further, the movable member 20 can be electrically driven and controlled by the position detection means 16 and the drive mechanism means 17 using the power supplied from the power supply unit 11.

  Furthermore, the lens fixing member 21 is configured such that a weight portion 22 having a predetermined mass is driven in the direction of the optical axis of the zoom lens 1 by electric power from the power supply unit 11.

  Next, a mass balance operation for fixing the imaging device to the installation member 4 and a mass balance operation for canceling the center of gravity movement in the photographing action of the zoom lens will be described with reference to FIGS. 6B to 7.

  As illustrated in FIG. 6B, the operation flow illustrated in FIG. 7 is described in a state where the imaging apparatus is fixed to the installation member 4 and is installed in a state where a desirable mass position balance is not achieved.

  In the same manner as described in the second embodiment, the imaging device is first attached to the lens fixing member 21, and then fixed to the support device 19 (0301), and further to the support device 19 to the lens / camera information input unit 15. The cable 18 laid on the lens or camera is attached (0302).

  The power is turned on (0304) in a state where these are fixed to the installation member 4 (0303).

  Then, from the lens / camera information obtained via the lens / camera information input unit 15 (0305), the optimum mass balance position in the camera / lens combination stored in the calculation unit 10 is read out, and the position detection means Sixteen target values are determined (0306).

  The movable member 20 is driven by the drive mechanism unit 17 until the output value of the position detection unit 16 matches the target value described above, whereby the initial adjustment of the mass balance operation of the imaging apparatus is performed (0307).

  At this time, as in the first or second embodiment, the output (0308) of the pressure detection units 8a and 8b is used as an input value, and the calculation unit 10 calculates whether or not the threshold value is corrected (0309) and performs display on the display member 9. (0310) The photographer can check the mass balance state.

  As described in detail in the second embodiment, even when the optimum mass balance position held in this state is deviated by equipment additionally laid on the imaging apparatus, correction is performed (0311). To the mass balance position (0312).

  Once the adjustment to the mass balance position has been completed as described above, the photographer can perform a photographing action with a balanced operation. For example, in the case of a large zoom lens as shown in this embodiment, focus adjustment / magnification The operation may cause a change in the center of gravity position of the zoom lens.

  FIG. 6C is a diagram illustrating an operation state of the zoom lens described above. Assume that the position of the center of gravity of the entire imaging apparatus has changed as a result of focus adjustment, one of scaling operations, or the superposition of both, as indicated by an arrow A in the figure.

  Once shooting is started, particularly when remote shooting is performed from a fixed point, a change in the set shooting position has an effect of a change in shooting angle of view and composition, so (0307) to (0 It is not preferable to use the mass balance position adjustment action performed in the loop of (0311).

  Therefore, the position information of the zoom lens 1 obtained from the lens / camera information input unit 15 via the cable 18 is used to generate the movement that cancels the center of gravity movement caused by the photographing operation of the zoom lens 1. An input to the correction table is made (0313).

  As shown in FIG. 6D, in accordance with the position information of the zoom lens 1 when the position of the center of gravity changes, the calculation unit 10 calculates the correction drive amount of the weight part 22 from the center of gravity position correction table (0314), and the weight The mass balance correction operation by the unit 22 is performed, and the mass balance state is maintained again.

  Further, as shown in FIGS. 6A to 6D, the weight portion 22 is provided with a plurality of screw attachment portions 23a to 23d.

  The weight portion 22 can be arbitrarily selected according to the zoom lens 1 to be used. However, the screw attachment portions 23a to 23d are used for fixing the existing photographing equipment as means for the photographer to adjust the mass flexibly at the photographing site. Is possible.

  As a result, for example, a video light or a microphone can be additionally added to the mass of the weight, and it can be used to effectively correct the collapse of the mass balance added at the site.

  According to the above-described embodiment, the photographer not only obtains the state automatically corrected to the optimum mass balance position but can perform the photographing action, and cancels the influence of the movement of the center of gravity caused by the operation of the zoom lens. It is possible to obtain an effect that enables a photographing action while maintaining a mass balance state.

  As mentioned above, although preferable embodiment of this invention was described, this invention is not limited to these embodiment, A various deformation | transformation and change are possible within the range of the summary.

  Used as a support device for an imaging device in a broadcasting equipment product.

1: zoom lens 2: camera 3, 12, 19: support device 5, 13, 20: movable member 6: camera fixing member 8: pressure detection member 9: display member 10: calculation unit 11: power supply unit 14, 21: lens Fixing member 15: Lens / camera information input unit 16: Position detecting unit 17: Driving mechanism unit 22: Weight unit 23: Screw mounting unit

Claims (4)

  A support device that supports the imaging device includes a moving unit that moves the imaging device, at least two pressure detection units, a calculation unit, and a display unit, and the support state of the imaging device is detected by the pressure detection unit. A support device for an imaging apparatus, characterized in that the detection state at that time is displayed on the display unit.   Calculation unit based on storage information of mass balance position of lens constituting imaging device, input means for acquiring camera information, driving means for driving moving unit for moving imaging device, and supporting device for imaging device The support device is characterized in that the moving unit that moves the imaging device is driven by a control unit that performs a mass balance operation based on information from the input means and information from the calculation unit. The support device for an imaging apparatus according to claim 1.   An imaging unit having an input unit for inputting lens position information of the imaging apparatus, a mass member having a mass that cancels a moment exerted by the movement of the center of gravity caused by the lens operation, and an arithmetic unit based on the information obtained from the input unit 3. The support device for an imaging apparatus according to claim 1, wherein a correction driving amount capable of canceling a moment generated by the operation is derived and the weight member is driven. The weight member has a fixing portion that enables mass adjustment, and the fixing portion fixes equipment required for photographing, so that the mass of the equipment can also be applied to mass balance adjustment. Item 5. The imaging device support device according to any one of Items 4 to 5.