JP5784922B2 - Imaging device mounting fixture - Google Patents

Description

  The present invention relates to an attachment device for an image pickup apparatus that can be attached when taking an image using an attachment device and a prompter device for attaching an image pickup device used for stereoscopic shooting of a subject to a predetermined position. It is about.

  In recent years, various techniques for displaying stereoscopic images have been proposed. In order for viewers to recognize stereoscopic images, images with binocular parallax taken from two viewpoints are respectively applied to the viewer's left and right eyes. It needs to be recognized.

  In general, for capturing stereoscopic images, as disclosed in Patent Document 1, two video cameras are installed by a parallel-arranged mounting device that is horizontally arranged horizontally, and an object is photographed from different directions and positions. Has become the mainstream.

  The distance between the optical axes of the two video cameras is often set to be about 65 mm apart from the width of both human eyes. As a result, the stereoscopic image can have a natural stereoscopic effect. Further, when adjusting the stereoscopic effect, it is also performed by adjusting the optical axis interval of the video camera. When shooting a distant view, if the distance between the optical axes of the two cameras is 65 mm, the stereoscopic effect becomes poor. When photographing a short distance, a natural three-dimensional effect is obtained by setting the distance between the optical axes of the two cameras to 65 mm or less.

  In the parallel arrangement type stereoscopic image pickup device as in Patent Document 1, when shooting with a distance of 65 mm or more between two camera optical axes when shooting a distant view, the video cameras do not collide with each other and are easy to handle. . However, when photographing a short distance, the distance between the two camera optical axes needs to be 65 mm or less. Therefore, in order to prevent the video cameras from colliding with each other, it is indispensable that the size of the video camera body is small. However, a broadcast video camera is usually large in size, and there is a limit to the use of a parallel-arranged stereoscopic image pickup apparatus for short-distance shooting such as indoor shooting.

  Therefore, when the video camera is a large parallel arrangement type 3D image pickup device and the optical axis interval of the video camera cannot be arranged at the optimum position, one video camera is arranged horizontally and the other video camera is arranged. In many cases, an image pickup apparatus using a right angle arrangement type three-dimensional image pickup apparatus mounting tool in which a half mirror is arranged at an intersection of two optical axes and arranged in a vertical direction has been increasingly used. Note that the video camera arranged in the vertical direction may be arranged above or below the half mirror.

  Right-angled stereoscopic imaging devices are beginning to be used in various applications because they have a relatively high degree of freedom in the size and lens of a video camera and a wide adjustment range such as a convergence angle. In particular, the use in short-distance shooting such as in a room where the above-described parallel arrangement type stereoscopic video imaging apparatus is not good is remarkable.

  By the way, a prompter device for displaying a manuscript or the like on the front surface of a video camera lens is used in a television program or the like, and particularly in a news program, an announcer can read a news manuscript from the camera's perspective.

  As described in Patent Document 2, the prompter device has a structure in which a half mirror is obliquely installed on the front surface of the video camera, and a prompter display panel for displaying a document or the like is installed below the half mirror. Since the original displayed on the prompter display panel is reflected by the half mirror and displayed on the optical axis of the video camera, the announcer is photographed from the viewpoint of the camera.

JP-A-6-54349 JP 2002-27288 A

  Since the above-described right angle arrangement type stereoscopic imaging device mounting tool and prompter device are mounted on a broadcast video camera, the mounting tool becomes large, and a large storage space is required when not in use. In addition, it is necessary to own multiple types of rigs depending on the intended use.

  If a stereoscopic imaging device and a prompter device are used at right angles, remove the video camera attached below the stereoscopic imaging device, and attach a heavy object such as a prompter display panel to the front subject of the mounting fixture. The center of gravity moved and the possibility of losing balance at the conventional tripod mounting position was very high.

  The present invention has been made in view of the above-described problems, and removes an imaging device such as a video camera below a three-dimensional imaging device of a right angle arrangement type using a half mirror, and other imaging device mounting instruments including a prompter device. It is an object of the present invention to provide an imaging device mounting tool that can stabilize the center of gravity even if it is used.

The present invention has been made to solve the above-described problems, and the invention according to claim 1 is such that the front surface opens toward the subject, and the subject image is dispersed toward the rear surface and the bottom surface, respectively. A first window for fixing the position of the first imaging device so as to be able to receive a subject image dispersed toward the rear surface by the half mirror; and further, provided on the bottom surface by the half mirror. A box-shaped frame body provided with a second window for fixing the position of the second imaging device so as to be able to receive the subject image dispersed toward the first image, and the first frame attached to the rear surface outside the frame body. A first support member that detachably supports the imaging device via the first attachment, and the second imaging device attached to the outside of the bottom surface of the frame body are attached via the second attachment. A second support member that removably supports, and a support leg mounting portion that is provided on a bottom surface of the first support member and attaches a support leg that supports the frame. And the second support member faces the bottom surface of the frame main body, the opposite surface of the second support member to the surface that supports the second imaging device, and the first support member. The first imaging device is attached so as to be rotatable to a position where the opposite surface to the surface supporting the first imaging device is flush with the support leg mounting portion. It is configured to be slidable in parallel with the optical axis of the imaging apparatus.

  According to a second aspect of the present invention, in the mounting device for an imaging apparatus according to the first aspect, the second support member is attached to the outside of the bottom surface of the frame body by a hinge structure.

  According to a third aspect of the present invention, in the mounting device for an imaging apparatus according to the first or second aspect, the support leg mounting portion includes a screw hole portion for mounting the support leg, and the screw hole portion for the first screw hole portion. By providing a slide portion that is slidable parallel to the bottom surface of the support member, the frame can be slid relative to the support leg in parallel with the optical axis of the first imaging device. It is characterized by being.

  According to a fourth aspect of the present invention, in the mounting device for an imaging apparatus according to any one of the first to third aspects, the first supporting member and the second supporting member each support the imaging apparatus. The position adjustment part which adjusts the position of is provided.

  According to a fifth aspect of the present invention, in the mounting device for an imaging apparatus according to any one of the first to fourth aspects, the second support member has a lock mechanism that fixes rotation at a predetermined position. It is characterized by that.

  According to the present invention, the mounting device of the imaging apparatus can be balanced even if the position of the center of gravity changes because the support leg mounting portion is slidable, and can be stably installed, so it is convenient for moving or storing the mounting device. It is.

  In addition, since two imaging devices can be installed on the fixture and used as a three-dimensional image of a right angle arrangement type, it can be used as a prompter device and other imaging devices. There is an advantage of not having to own.

  Note that the center of gravity position of the entire apparatus when stereoscopic imaging is performed at a right angle is different from the position of the center of gravity when the imaging device attached to the second support member is removed and used as a prompter device or other imaging device attachment tool. In many cases, the balance is lost if the support leg mounting position remains at the time of stereoscopic shooting, but in the present invention, the position of the support leg mounting part can be adjusted, and the support leg is installed at the optimum center of gravity position. It is possible to operate the apparatus more safely.

  Further, since the second support member can be rotated and fixed flush with the first support member, the support leg can be moved without contacting the leg portion and the second support member when the position of the support leg is adjusted. Since the adjustment range for dealing with the movement of the center of gravity of the device is widened, the device can be further stabilized.

One embodiment at the time of using the imaging device fixture concerning the present invention as a stereoscopic imaging device is shown. (A) is a side view and (b) is a front view. The side view of one Embodiment at the time of using the imaging device attachment instrument concerning this invention as a prompter apparatus is shown. The support leg attaching part of the imaging device attachment instrument which concerns on this invention is shown. An example of the switching procedure in the case of operating the imaging device mounting fixture according to the present invention from a stereoscopic imaging device to a prompter device is shown.

An embodiment of an imaging apparatus mounting tool according to the present invention will be described with reference to the drawings.
FIG. 1A is a side view when stereoscopic imaging is performed with two imaging devices attached to the imaging device mounting tool 10, and FIG. 1B is a front view. The imaging apparatus mounting instrument 10 includes a frame body 11, a first support member 12, a second support member 14, an attachment 16, a half mirror 17, a hinge 18, and a bottom plate 19, and includes a first camera 13 and a second camera 15, and a support. A leg 20 is attached. In the present embodiment, a tripod is used as the support leg 20, and a video camera is used as the imaging device.

  Assuming that the subject direction is the front, a first support member 12 is provided behind the frame body 11, and a first camera 13 is installed on the first support member 12 via an attachment 16. Further, a second support member 14 is provided on the bottom surface side of the frame body 11 via a hinge 18 that is rotatable and can be fixed at an arbitrary position, and the second support member 14 has a second camera 15. Is installed via the attachment 16. Further, the support leg 20 is installed by a support leg mounting portion 22 provided on the first support member 12.

  In the front view of FIG. 1B, stereoscopic video can be taken by shifting the two video cameras. The optical axis interval of the video camera can be arbitrarily adjusted based on 65 mm, which is about the interval between human eyes.

  The frame body 11 has a box shape, and one surface (front surface) in the subject direction is open. A first window A for inserting the lens of the first camera 13 is provided on the rear surface. Inside the frame main body 11, a half mirror 17 for separating the subject image into the rear surface and the bottom surface is installed with an inclination. The frame shape is a shape for preventing unintended light from entering the half mirror 17 and the camera lens. Further, the inclination angle and installation position of the half mirror 17 can be adjusted.

  The bottom surface of the frame body 11 is composed of a removable bottom plate 19, and a second window B for inserting a lens of the second camera 15 is provided in the case of stereoscopic shooting. The bottom plate 19 may be attached by being screwed from the outside of the frame body 11, or may be mounted on the rail by providing a rail inside the frame body 11. When the second camera 15 is removed, if the bottom plate 19 is replaced with one without the window B, or the window B portion is closed with a lid, there is less possibility of unintended external light entering the inside of the frame body 11. .

  The angle α between the half mirror 17 installed in the frame body 11 and the optical axis of the first camera 13 is installed with an inclination of 45 ° in this embodiment. Note that the optical axis of the first camera 13 is horizontal in this embodiment.

  The optical axis of the second camera 15 is adjusted and fixed by a hinge 18 provided at one end of the second support member 14 so that an angle β with the optical axis of the first camera 13 is 90 °. The hinge 18 is provided with a lock mechanism so that the hinge 18 can be fixed at an arbitrary angle.

  For photographing, the subject is photographed with the angle α between the optical axis of the first camera 13 and the half mirror 17 being 45 ° and the angle β between the optical axis of the first camera 13 and the second camera 15 being set to 90 °. By doing so, it is possible to shoot a three-dimensional stereoscopic image. Note that since the image of the second camera 15 is an inverse image of the image reflected by the half mirror 17, inversion processing is required.

  The hinge 18 provided at one end of the second support member 14 may be fixed at an arbitrary angle, or a 90 ° stopper hinge may be used when only a parallel position and a right angle position are used. In particular, the hinge portion preferably has a shape that can be attached so as not to come into contact when the position of the support leg is adjusted. Further, not only a hinge mechanism but also a rotating mechanism using a rotating shaft and a bearing structure may be used. In addition, when the imaging apparatus mounting tool 10 is large and heavy, the second support member 14 can be rotated by an electric actuator or a hydraulic cylinder.

  Since the height from the bottom surface of the camera to the optical axis differs depending on the type of camera, the optical axis can pass through a fixed position in the frame body 11 by installing the attachment 16 between the camera and the support member. .

  On the back surface of the camera mounting surface of the first support member 12, there is provided a support leg mounting portion 22 for mounting the support leg 20 as shown in FIG. The support leg mounting part 22 is composed of a screw hole part 23 and a slide part 24, and the position of the support leg 20 attached to the screw hole part 23 can be adjusted by sliding the screw hole part 23 back and forth. . Thus, the mounting position of the support leg 20 can be adjusted in consideration of the center of gravity and operation of the entire imaging apparatus mounting tool 10. Normally, the position of the center of gravity of the imaging apparatus mounting tool 10 is moved in the front-rear direction, so that the position is adjusted by uniaxial movement in the front-rear direction as shown in FIG. It is good also as a mechanism which can be adjusted also in the left-right direction.

  If the video camera is removed and a jig is attached when moving or storing the imaging apparatus mounting tool 10, the center of gravity of the entire apparatus may move greatly forward. Even if the position of the support leg 20 is adjusted by the support leg mounting portion 22, if the second support member 14 is in the vertical position, the support leg 20 and the second support member 14 come into contact with each other and cannot be slid further. Although it may be difficult to achieve a balance, the second support member 14 can be rotated so as to be flush with the first support member 12 by the hinge 18, so that the second support member 14 and the second support member 14 are supported. The position of the leg 20 can be adjusted smoothly without contact.

  Next, as shown in FIG. 2, an embodiment in which the imaging device mounting tool 10 is used as a prompter device will be described. The configuration of the prompter device is obtained by replacing the second camera 15 with the prompter display panel 21 when two video cameras are attached to the imaging device mounting apparatus 10 of FIG. Has become.

  In the prompter device, a first camera 13 is installed via an attachment 16 on a first support member 12 provided in the horizontal direction of the frame body 11. The second support member 14 is provided on the frame body 11 via a rotatable hinge 18, and the second support member 14 is fixed horizontally. A prompter display panel 21 is installed on the bottom surface inside the frame body 11. The half mirror 17 installed on the frame body 11 is installed so that the angle α with the optical axis of the first camera 13 is 45 °.

  The bottom surface of the frame body 11 is composed of a removable bottom plate 19. The bottom plate 19 does not have a window B for inserting a camera lens, and may be attached by being screwed from the outside of the frame body 11 or mounted on a rail or the like provided inside the frame body 11. May be placed. Further, when the second support member 14 is rotated and fixed horizontally, the bottom plate 19 may be fitted to the second support member 14 and then the bottom plate 19 is fitted as the bottom surface of the frame body 11. .

  The support leg 20 is attached in front of the stereoscopic imaging device of the right angle arrangement type in FIG. 1 in order to balance the center of gravity of the prompter device. In this case, in the case of a conventional stereoscopic imaging device in which the second support member 14 does not rotate, the leg portion of the support leg 20 and the second support member 14 come into contact with each other, making it difficult to achieve a balance. In the case of the present invention, the second support member 14 can be rotated so as to be flush with the first support member 12 by the hinge 18, so that the second support member 14 and the support leg 20 are smoothly brought into contact with each other. The position can be adjusted and stable operation can be achieved.

  An image such as a document displayed on the prompter display panel 21 is reflected by the half mirror 17 and displayed on the announcer side that is the subject. Note that the video to be displayed is reversed by the half mirror 17, so that the image is reversed and displayed in advance.

  Next, an example of an operation switching procedure from the stereoscopic video imaging device to the prompter device will be described with reference to FIG. When the imaging apparatus mounting tool 10 is operated as a stereoscopic video imaging apparatus, the angle of the first support member 12 and the second support member 14 is fixed at 90 ° as shown in FIG. A second camera 15 is attached to the second support member 14 via an attachment 16.

  First, as shown in FIG. 4A, the second camera 15 and the attachment 16 attached to the second support member 14 are removed, and then the bottom plate 19 with the window B attached to the bottom surface of the frame body 11 is removed.

  Then, as shown in FIG. 4B, a bottom plate 19 without a window B is attached to the second support member 14, and the hinge 18 provided at one end of the second support member 14 is fixed to be freely rotatable. Then, the second support member 14 is rotated in parallel with the optical axis of the first camera 13, that is, in the horizontal state in this embodiment, and the hinge 18 is fixed.

Thereafter, as shown in FIG. 4C, the prompter display panel 21 is installed on the bottom plate 19 on the bottom surface of the frame main body 11. Further, since the position of the center of gravity is different from that in the case of operating as a stereoscopic video imaging apparatus, the position of the support leg 20 is adjusted by sliding the screw hole 23 of the support leg mounting part 22. When the position is adjusted, the support leg 20 may have to be moved largely toward the frame body 11 as shown in FIG. 4C. However, the second support member 14 is horizontally fixed, so that the support leg 20 is supported. In particular, the leg portion of the leg 20 and the second support member 14 can move without contact. As a result, the support leg 20 can be installed at the optimum center of gravity position, and the imaging device mounting tool 10 can be stably operated as a prompter device.
The operation switching procedure from the prompter device to the stereoscopic video imaging device is the reverse of the above-described procedure.

  The imaging device mounting fixture according to the present invention can be used not only as a right angle type stereoscopic imaging device but also as a prompter device or other imaging device mounting fixture.

A Window B Window 10 Imaging device mounting tool 11 Frame body 12 First support member 13 First camera 14 Second support member 15 Second camera 16 Attachment 17 Half mirror 18 Hinge 19 Bottom plate 20 Support leg 21 Prompter display panel 22 Support leg Mounting portion 23 Screw hole portion 24 Slide portion

Claims (5)

A front surface that opens toward the subject, a half mirror that divides the subject image toward the rear surface and the bottom surface, and a subject image that is spectrally separated toward the rear surface by the half mirror can be received. A first window for fixing the position of the imaging device is provided, and further, a second window for fixing the position of the second imaging device is provided so that the subject image dispersed toward the bottom surface by the half mirror can be received. A box-shaped frame body,
A first support member that removably supports the first imaging device attached to the outer rear surface of the frame main body via a first attachment ;
A second support member that removably supports the second imaging device attached to the outside of the bottom surface of the frame body via a second attachment ;
A frame comprising:
A support leg mounting portion provided on a bottom surface of the first support member for mounting a support leg for supporting the frame;
Have
The second support member faces the bottom surface of the frame main body, the surface of the second support member opposite to the surface that supports the second imaging device, and the first support member. It is attached so that it can rotate to the position where the opposite surface of the surface that supports the imaging device is flush,
The mounting device for an imaging apparatus, wherein the support leg mounting portion is configured to be able to slide the frame with respect to the support leg in parallel with the optical axis of the first imaging apparatus.   2. The mounting device for an imaging apparatus according to claim 1, wherein the second support member is attached to the outside of the bottom surface of the frame body by a hinge structure.   The support leg mounting portion includes a screw hole portion for mounting the support leg, and a slide portion that allows the screw hole portion to slide in parallel with the bottom surface of the first support member. 3. The mounting device for an imaging apparatus according to claim 1, wherein the frame is slidable with respect to the support leg in parallel with the optical axis of the first imaging apparatus.   The position adjustment part which adjusts the position of the imaging device which each supports the said 1st supporting member and the 2nd supporting member is provided, The any one of Claims 1-3 characterized by the above-mentioned. Mounting device for imaging device.   5. The mounting device for an imaging apparatus according to claim 1, wherein the second support member has a lock mechanism that fixes rotation at a predetermined position. 6.

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