JPH0573100B2 - - 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 to the vertical gyro, a rotor case 6 at the center 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 photographing in a shaking state, and a photographed surface image with less image blur can be obtained.

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 second connecting means for removably connecting the camera body and the holding means; and a second connecting means for removably connecting the camera body and the holding means; and control means for controlling the second rotation means.

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 camera is also removable, making it easy to transport, allowing highly mobile shooting, and allowing 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 electric 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 lower surface of the camera body 11 has a recess 16, which is removably engaged with a protrusion 18 provided on the upper surface of the rotating plate 17, thereby forming a first connecting means. The rotating plate 17 is the intermediate plate 1
The camera body 11 is mounted by the ball bearing 20 press-fitted into the
The rotary plate 17 is rotatably supported about approximately the center of gravity of the rotating plate 17, and constitutes a first rotating means. A ring-shaped magnet 22, which has been magnetized as required, is adhered. Further, on the upper surface of the intermediate plate 19 is a stator flat plate 23 made of a magnetic material.
A stator winding 24 is bonded to a position facing the magnet 22 via the magnet 22. Convex portion 1 of rotating plate 17
A rotary plate terminal 25 that can come into contact with the camera terminal 15 is provided at the center of the camera terminal 8, and a video signal etc. supplied to the camera terminal 15 can be transmitted. 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 body 28. Stator plate 29 of
A stator winding 30 is bonded to a position facing the magnet 27 via the magnet 27. 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. The second rotating means is rotatably supported. 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 has a recess 33 on the right side, and is removably engaged with a protrusion 35 provided on the left side of a hand clip 34 serving as a holding means. Furthermore, a fixing plate terminal 36 and a grip terminal 37 are provided on the right side surface of the fixing plate 28 and the left side surface 34 of the hand grip 34, respectively, so as to be able to come into contact with each other. Furthermore, the fixed plate 17, intermediate plate 19, and fixed plate 28 have through holes 38 and 3 for passing lead wires through, respectively.
It has 9.40. A viewfinder mounting bracket 41 is provided on the upper surface of the hand grip 34, and a viewfinder 42 for checking the video signal is fixed thereto. In addition, hand grip 34
includes a zoom switch 43 for electrically zooming the photographic lens 12, and a VTR connection terminal 4.
4. A recording switch 45 is provided to control the recording operation of the connected VTR. FIG. 2 is a block diagram showing electrical connections, and the control circuit 46 built in the intermediate plate 19 is connected to the rotating plate 17.
An angular velocity sensor 47 provided at the angular velocity sensor 47 is connected, and an actuator 48 constituted by the magnet 22, stator winding 24, etc. is driven 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 46 controls the actuator 48 so that the output of the angular velocity sensor 47 always approaches zero, thereby detecting camera shake in the horizontal direction. can be reduced. Similarly, a control circuit 49 is built into the fixed plate 28, and the magnet 2
7 and the stator winding 30, etc., is driven. Angular velocity sensor 50
is for detecting 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 reducing camera shake in the vertical direction. can be done.

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 convex portion 53 and a terminal 54 are provided on the upper surface of the hand grip 34, and constitute a second connecting means that can be engaged with the concave portion 16 of the camera body 11 and the camera terminal 15.

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, camera shake in the horizontal and vertical directions is detected by the angular velocity sensors 47 and 50, the actuator 48 is driven by the control circuit 46, and 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, even if the handgrip 34 held in the hand shakes due to camera shake, the camera body 11 does not shake and a stable image can be taken. This video can be recorded on a VTR (not shown) connected to the VTR connection terminal 44. In addition, image blur can be prevented by separating the camera body 11 and the rotating plate 17 and engaging the second connecting means constituted by the convex portion 53 on the upper surface of the hand grip 34 and the concave portion 16 on the lower surface of the camera body. It is possible to take pictures in the same way as a normal video camera without correction, and it can also be fixed to a tripod or the like using a tripod mounting screw (not shown) provided on the bottom surface of the hand grip 34.

Also, when transporting the video camera, be sure to
By dividing the container into three blocks: 1, intermediate plate 19, and hand grip 34, the storage container during transportation can be made smaller.

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 the 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; and a second connecting means for removably connecting the holding means to the first rotating means and the second rotating means so as to reduce screen blur of an image taken by the camera body. By providing a control means for controlling the image stabilization means, it is possible to use the rotation means in a detachable manner as required for image blur correction. By attaching it to the main body, you can take pictures without blur using the control means, and
When performing normal photography that does not require image blur correction, the rotating means can be removed from the camera body, and the camera body and holding means can be connected and fixed together, making it easy to make the shape compact. It also improves operability during normal shooting.

[Brief explanation of drawings]

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...Protrusion.

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 that integrally supports the camera body and the first rotation means so as to be rotatable in a pitching (or yawing) direction; and a holding member for holding the second rotation means. means, first connecting means for removably connecting the camera body and the first rotating means, second connecting means for removably connecting the camera body and the holding means, and the camera A photographing device comprising: a control means for controlling the first rotation means and the second rotation means so as to reduce screen blur of an image photographed by the main body.