JPH0573101B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a photographing device such as a video camera.

BACKGROUND TECHNOLOGY With the spread of video tape recorders in recent years, there are many opportunities to use video cameras to take pictures, and there is a demand for a video camera that can perform stable camera work with less image blur without using a tripod. There is.

An example of the conventional photographing device mentioned above will be described below with reference to the drawings. Conventionally, this type of photographing apparatus has had a structure as shown in the front and side views of FIGS. 3 and 4, as shown in, for example, Japanese Patent Laid-Open No. 53-64175. That is, there is a rotor case 1 containing a rotor that rotates at high speed at the center as a direction gyroscope, and this is supported by a horizontal gimbal 3 with left and right horizontal axes 2, and the horizontal gimbal 3 is further supported with a vertical gimbal 5 with left and right gimbal axes 4. is supported by Similarly, the vertical gyro also has a central rotor case 6.
is supported by a horizontal gimbal 7 and a vertical gimbal 8, and a video camera 9 and the like are installed on the rotor case 6. Therefore, by rotating the directional dial and the vertical dial at high speed, the video camera 9 remains stable even when shooting in a shaking state.
It is possible to obtain a photographed surface image with less image blur.

Problems to be Solved by the Invention However, the above configuration uses a gyroscope that rotates at high speed, which increases the size and weight of the device, so the entire device must be installed and used. There was a problem with lack of maneuverability.

Means for Solving the Problems In order to solve the above problems, the photographing device of the present invention includes a camera body having a photographing lens and a photoelectric conversion means for converting an optical image of the photographing lens into an electrical signal, and a first rotating means that supports the main body rotatably in the yawing (or pitching) direction; and a first rotating means that supports the camera body so as to be rotatable in the pitching (or pitching) direction; a second rotating means for supporting, a holding means for holding the second rotating means, and a first connecting means for detachably connecting the camera body and the first rotating means; , a first engaged part provided on the camera body, a second engaged part provided on the second rotation means, and the first engaged part and the second engaged part. The holding means is provided with an engaging part that is removably engaged with the holding part.

Effects Due to the above-described structure, the present invention does not use a large and heavy gyro as in the conventional case, so it can be easily configured to be small and lightweight, and the photographer can use it hand-held. The lens is also removable, allowing for highly mobile shooting, and allows camera work with reduced image blur without the use of a tripod.

Embodiment A photographing device according to an embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of the main parts of a photographing device according to an embodiment of the present invention, in which a camera body 11 has a photographing lens 12 on the front surface for photographing a subject. The optical image obtained is
The image sensor 13, such as a CCD, provided on the focal plane of the photographic lens 12 converts the signal into an electrical signal. This electrical signal is converted into a predetermined video signal by the video circuit 14 and transmitted to the camera terminal 15 provided on the bottom surface of the camera body 11. The camera body 11 has a recess 16 on the lower surface, and is removably engaged with a protrusion 18 on the upper surface of the rotating plate 17. The rotating plate 17 is rotatably supported by a ball bearing 20 press-fitted into the intermediate plate 19 about approximately the center of gravity between the camera body 11 and the rotating plate 17, and the lower surface of the rotating plate 17 A ring-shaped magnet 22, which is magnetized as required, is bonded to the back plate 21 made of a magnetic material. Also, intermediate plate 1
A stator winding 2 is disposed on the upper surface of the magnet 9 at a position facing the magnet 22 via a stator flat plate 23 made of a magnetic material.
4 is glued. A rotating plate terminal 25 that can come into contact with the camera terminal 15 is provided at the center of the convex portion 18 of the rotating plate 17, and can transmit video signals and the like supplied to the camera terminal 15. moreover,
A ring-shaped magnet 27 that is magnetized in a predetermined manner is adhered to the right side of the intermediate plate 19 via a back plate 26 made of a magnetic material, and a fixed magnet 27 made of a magnetic material is attached to the left side of the fixed plate 28. The stator winding 3 is located at a position facing the magnet 27 with the child flat plate 29 interposed therebetween.
0 is glued. A shaft portion 31 is provided on the right side of the intermediate plate 19, and a ball bearing 32 press-fitted into the fixed plate 28 allows the shaft portion 31 to be centered approximately at the center of gravity of the camera body 11, rotating plate 17, and intermediate plate 19. It is rotatably supported. Note that the intermediate plate 19 is safely held without falling off due to the suction force between the magnet 27 and the stator flat plate 29.

The fixing plate 28 has a concave portion 33 on the right side, and a convex portion 3 on the left side of the hand grip 34.
5 and is removably engaged.

Furthermore, the right side of the fixing plate 28 and the hand grip 3
A fixed plate terminal 36 and a grip terminal 37 are respectively provided on the left side surface 34 of the terminal 4 so as to be able to contact each other. In addition, the rotating plate 17, the intermediate plate 19, and the fixed plate 2
8 has a through hole 3 for passing the lead wire through each
It has 8,39,40. hand clip 3
A viewfinder mounting bracket 41 is provided on the top surface of the camera 4, and a viewfinder 42 for checking the video signal is fixed thereto. The hand grip 34 is also provided with a zoom switch 43 for electrically zooming the photographic lens 12, a VTR connection terminal 44, and a recording switch 45 for controlling the recording operation of the connected VTR. FIG. 2 is a block diagram showing electrical connections. A control circuit 46 built in the intermediate plate 19 is connected to an angular velocity sensor 47 provided on the rotating plate 17, and the control circuit 46 is connected to an angular velocity sensor 47 provided on the rotating plate 17. An actuator 48 made up of the magnet 22, stator winding 24, etc. is driven. Angular velocity sensor 4
7 detects camera shake in the yawing direction when rotating in a horizontal plane, and the control circuit 46 controls the actuator 48 so that the output of the angular velocity sensor 47 always approaches zero, thereby reducing camera shake in the horizontal direction. can be done. Similarly, a control circuit 49 is built into the fixed plate 28, and drives an actuator 51 constituted by the magnet 27, stator winding 30, etc. in response to a signal from an angular velocity sensor 50 provided on the intermediate plate. The angular velocity sensor 50 detects camera shake in the pitching direction rotating in a vertical plane.
By controlling the actuator 51 by the control circuit 49 so that the output of 0 always approaches zero, camera shake in the vertical direction can be reduced.

The power supply 52 supplied to the VTR connection terminal 44 is supplied to the intermediate plate 19 via the grip terminal 37 and the fixed plate terminal 36, and is further supplied to the through holes 38, 39, 40.
It is supplied to the camera body 11 via the rotating plate terminal 25 and the camera terminal 15. Further, a recess 53 and a side terminal 54 are also provided on the right side of the camera body 11.
is provided, a convex portion 35 of the hand grip 34,
It is configured to be able to engage with the grip terminal 37.

The operation of the photographing apparatus configured as described above will be explained below. First, the camera body 11 and the rotating body 17 are connected, the fixed plate 28 and the hand grip 34 are connected, and the hand grip 34 is held to take a photograph. At this time, the angular velocity sensors 47 and 50 detect camera shake in the horizontal and vertical directions, the control circuit 46 drives the actuator 48, the control circuit 49 drives the actuator 51, and the angular velocity sensors 47 and 50 By controlling the output so that it is always close to zero, the camera body 1 is
1 can take stable images without shaking, and this video can be recorded on a VTR (not shown) connected to the VTR connection terminal 44.

Also, the camera body 11 and the rotating plate 17 are separated,
By engaging the convex portion 35 on the left side of the hand grip 34 and the concave portion 53 on the right side of the camera body, it is possible to take pictures in the same way as a normal video camera without correcting image blur. It can also be fixed to a tripod or the like using a tripod mounting screw (not shown) or a recess 16 provided on the bottom surface.

As mentioned above, if the photographer can obtain images with less blur even when shooting handheld, and there is no need to correct image blur, it is possible to reduce the weight by attaching the hand grip directly to the main body. and power consumption can be reduced.

In the embodiment, the first movable means is rotated in the yawing direction and the second movable part is rotated in the pitching direction, but conversely, the first movable part is rotated in the pitching direction and the second movable part is rotated in the pitching direction. It is essentially the same even if it is rotated in the yawing direction.

Effects of the Invention As described above, the present invention provides a camera body including a photographic lens and a photoelectric conversion means for converting an optical image of the photographic lens into an electrical signal, and a camera body that is rotatable in the yawing (or pitching) direction. a first rotation means that supports the camera body and the first rotation means; and a second rotation means that integrally supports the camera body and the first rotation means so as to be rotatable in a pitching (or yawing) direction.
a rotating means for holding the second rotating means; a first connecting means for detachably connecting the camera body and the first rotating means; and a first connecting means for detachably connecting the camera body to the first rotating means; a first engaged portion provided in;
a second engaged portion provided on the second rotation means;
By providing the holding means with an engaging portion that removably engages with the first engaged portion and the second engaged portion, the device can be easily configured to be small and lightweight. The camera can be held in hand by the photographer, and the camera body is also removable, making it easy to transport and allowing for highly mobile photography.

Further, when there is no need to correct image blur, the holding means can be attached directly to the camera body, thereby making it possible to reduce the weight and power consumption.

[Brief explanation of the drawing]

Fig. 1 is a configuration diagram of the main parts of a photographing device according to an embodiment of the present invention, Fig. 2 is a block diagram showing electrical connections, Fig. 3 is a front view of a conventional photographing device, and Fig. 4 is a side view. It is. 11...Camera body, 16...Recess, 17...
Rotating plate, 18...Convex portion, 19...Intermediate plate, 22...
... Magnet, 24 ... Stator winding, 27 ... Magnet, 28 ... Fixed plate, 30 ... Stator winding, 33 ... Recess, 34 ... Hand grip, 3
5... Convex portion, 53... Concave portion.

Claims (1)

[Claims] 1. A camera body having a photographic lens and a photoelectric conversion means for converting an optical image of the photographic lens into an electrical signal; and a first rotation means for supporting the camera body rotatably in a yawing (or pitching) direction. , a second rotation means for integrally supporting the camera body and the first rotation means so as to be rotatable in a pitching (or yawing) direction; and a second rotation means for holding the second rotation means. a holding means, a first connecting means for removably connecting the camera body and the first rotating means, a first engaged portion provided on the camera body, and a second rotating member. A photographing device in which the holding means includes a second engaged portion provided on the means, and an engaging portion that removably engages with the first engaged portion and the second engaged portion. .