JPH0573103B2 - - 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 rotor case 6 at the center of the vertical gyro 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 direction dial and the vertical dial at high speed, the video camera 9 remains stable even when photographing in a shaking state, and it is possible to obtain photographed images with less 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 the 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 photoelectric conversion means for converting an optical image from a photographing lens for photographing a subject into an electrical signal, and a yawing rotation means provided at a lower position (or upper position) of the main body to rotatably support the camera body in the yawing direction; and a yawing rotation means provided at a lateral position of the camera body to rotate the camera body and the yawing rotation means in the pitching direction. a pitching rotation means for rotatably supporting the camera; a holding means connected to the pitching rotation means so as to enable a photographer to hold the entire device; camera shake of the camera body is reduced; The apparatus further includes a control means for controlling the yawing rotation means and the pitching rotation means in a direction.

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
It is converted into an electrical signal by a photographing element 13 such as a CCD provided on the focal plane of the photographing lens 12. 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 rotating plate 17 combined with the camera body 11 is supported by a ball bearing 20 press-fitted into the intermediate plate 19 so as to be freely rotatable around approximately the center of gravity of the camera body 11 and the rotating plate 17, and is rotated for yawing. The rotating plate 17 constitutes a moving means.
A ring-shaped magnet 22, which is magnetized as required, is adhered to the lower surface of the magnet via a back plate 21 made of a magnetic material. Further, a stator winding 24 is bonded to the upper surface of the intermediate plate 19 at a position facing the magnet 22 via a stator flat plate 23 made of a magnetic material. A rotating plate terminal 25 that can come into contact with the camera terminal 15 is provided at the center of the rotating plate 17, and can transmit video signals and the like supplied to the camera terminal 15. Further, 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 ring-shaped magnet 27 made of a magnetic material is attached to the left side of the fixed plate 28. The magnet 27 is connected via the stator flat plate 29 of
A stator winding 30 is bonded at a position facing the. 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 and constitutes pitching rotation means. Note that the intermediate plate 19 is stably held by the attraction force between the magnet 27 and the stator flat plate 29 without falling off.

The fixing plate 28 holds the hand grip 3 which is a holding means.
Further, a fixing plate terminal 36 and a grip terminal 37 are provided on the right side surface of the fixing plate 28 and on the left side surface 34 of the hand grip 34, respectively, so as to be able to come into contact with each other. Also, rotating plate 17, intermediate plate 1
9. The fixing plate 28 has through holes 38, 39, and 40 for passing lead wires through, respectively. The top surface of the hand grip 34 is equipped with a finder mounting bracket 4.
1 is provided, and a view finder 42 for checking the video signal is fixed. The hand grip 34 also includes a zoom switch 43 for electrically zooming the photographing lens 12;
A VTR connection terminal 44 and a recording switch 45 for controlling the recording operation of the connected VTR are provided. FIG. 2 is a block diagram showing electrical connections, and shows 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 drives an actuator 48 constituted by the magnet 22, stator winding 24, etc. in accordance with the signal from the angular velocity sensor 47. The angular velocity sensor 47 detects camera shake in the yawing direction when rotating in a horizontal plane, and the control circuit 4 is configured so that the output of the angular velocity sensor 47 always approaches zero.
6 controls the actuator 48,
Horizontal camera shake can be reduced. 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, and the control circuit 49 controls the actuator 51 so that the output of the angular velocity sensor 50 always approaches zero, thereby detecting camera shake in the vertical direction. The shake can be reduced, and the above configuration serves as a control means for controlling the yawing rotation means and the pitching rotation means.

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.

The operation of the photographing apparatus configured as described above will be explained below. Horizontal and vertical camera shake is detected by the angular velocity sensors 47 and 50, the actuator 48 is driven by the control circuit 46, the actuator 51 is driven by the control circuit 49,
By controlling the outputs of the angular velocity sensors 47 and 50 to always approach zero, the camera body 11 does not shake even if the hand grip 34 held in the hand shakes due to camera shake, etc., and stable images can be taken. This video can be recorded on a VTR (not shown) connected to the connection terminal 44.

As described above, even when a photographer takes a picture hand-held, it is possible to obtain an image with less blur, and the camera has excellent mobility.

In addition, in the above embodiment, the case where the yawing rotation means was provided at the bottom of the camera body was explained.
It is essentially the same even if it is provided above the camera body.

Effects of the Invention A camera body includes a photoelectric conversion means for converting an optical image from a photographing lens for photographing a subject into an electric signal, and a camera body is provided at a lower position (or an upper position) of the camera body to rotate the camera body in a yawing direction. a yawing rotation means that freely supports the camera body; a pitching rotation means that is provided at a lateral position of the camera body and supports the camera body and the yawing rotation means so as to be rotatable in a pitching direction; and a pitching rotation means that is connected to the pitch rotation means. and a control means for controlling the yawing rotation means and the pitching rotation means in a direction in which camera shake of the camera body is reduced. This makes it easy to make the entire device lightweight and compact, allowing photographers to use it hand-held, and the camera body is also detachable, allowing for highly mobile shooting. , it is possible to perform stable camera work with reduced image blur without using a tripod.

[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, 17...Rotating plate, 19...
... intermediate plate, 22 ... magnet, 24 ... stator winding, 27 ... magnet, 28 ... fixed plate, 3
0...Stator winding, 34...Hand grip.

Claims (1)

[Claims] 1. A camera body having a photoelectric conversion means for converting an optical image from a photographing lens for photographing a subject into an electric signal, and a camera body provided at a lower position (or upper position) of the camera body so as to be able to freely rotate in a yawing direction. yawing rotation means for supporting, pitching rotation means provided at a lateral position of the camera body and supporting the camera body and the yawing rotation means rotatably in the pitching direction, and a pitching rotation means connected to the pitching rotation means for photographing. A holding means provided to enable a person to hold the entire device, and a control means for controlling the yawing rotation means and the pitching rotation means in a direction in which camera shake of the camera body is reduced. A photographic device featuring: