JPH0573102B2 - - 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 device has a structure as shown in the front and side views of FIGS. 4 and 5, 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 gyro that rotates at high speed, making the device large, making it impossible to take pictures by hand, and eliminating the need to prevent image blur. At the time, it was necessary to take pictures with large equipment attached, and there was a problem with the lack of mobility. Additionally, the video camera would not stabilize if the gyro was turned off and stopped rotating, so it was necessary to keep the gyro energized at all times while shooting.

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 the entire device. a holding means that can be held by a photographer; and a holding means that can be attached between the camera body and the holding means, and corrects to reduce screen blur of an image taken by the camera body. The camera is equipped with a correcting means and a connecting means for removing the correcting means and connecting the camera body to the holding means when there is no need to correct screen blur of the image.

Effects According to the above-described configuration, when the present invention wants to take pictures that prevent image blur, a correction means for correcting image blur is attached between the holding means that the photographer holds in his hand and the camera body. When it is not necessary to prevent image blur, such as when using a tripod, etc., by fixing the camera body and the holding means integrally,
This makes it possible to reduce power consumption and efficiently perform shooting according to the purpose.

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 electric signal is converted into a predetermined video signal by the video circuit 14. Next, the structure of the correction means for correcting to reduce screen blur will be explained. First, camera body 1
The signal is transmitted to the camera terminal 15 provided on the bottom surface of the camera. 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 the intermediate plate 19
The camera body 11 and the rotary plate 17 are rotatably supported by a ball bearing 20 press-fitted into the camera body 11 and the rotary plate 17 so as to be rotatable about their centers of gravity. A ring-shaped magnet 22, which has been magnetized in the required manner, is bonded thereto. 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 be contacted with the camera terminal 15 is provided at the center of the convex portion 18 of the rotating plate 17.
A video signal etc. supplied to the camera terminal 15 can be transmitted. Furthermore, on the right side of the intermediate plate 19, a back plate 26 made of a magnetic material is provided.
A ring-shaped magnet 27 that has been magnetized in a predetermined manner.
A stator winding 30 is bonded to the left side of the fixed plate 28 at a position facing the magnet 27 via a stator flat plate 29 made of a magnetic material.
The right side of the intermediate plate 19 has a shaft portion 31,
The camera body 11, the rotary plate 17, and the intermediate plate 19 are rotatably supported by a ball bearing 32 press-fitted into the fixed plate 28 about approximately the center of gravity of the camera body 11, the rotary plate 17, and the intermediate plate 19.
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 concave portion 33 on the right side surface, and is removably engaged with a convex portion 35 provided on the left side surface of a hand grip 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 contact each other. In addition, the rotating plate 17, the intermediate plate 19, and the 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. It also constitutes a correction means for reducing screen blur.

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.

Figure 3 shows the camera body 11 and hand grip 34.
is a partial cross-sectional view showing a state in which the camera is attached to a connecting member 53 serving as a connecting means, and in the same figure, a convex portion 54 provided at one end of the connecting member 53 is removably attached to a concave portion 16 on the lower surface of the camera body 11. engaged.
A terminal 55 that can be contacted with the camera terminal 15 is provided at the center of the convex portion 54, and a video signal etc. supplied to the camera terminal 15 can be transmitted.

The other end of the connecting member 53 has a concave portion 56, which is removably engaged with a convex portion 35 provided on the left side surface of the hand grip 34. Further, a terminal 57 is provided at a position where it can come into contact with the grip terminal 37, and a lead wire (not shown) passed through a through hole 58 provided in the connecting member 53 connects the camera terminal 15 to the camera terminal 57.
and the grip terminal 37 are connected.

Note that the structure from the rotating body 17 to the fixed plate 28 constitutes a correction means for correcting to reduce screen blur.

The operation of the photographing apparatus configured as described above will be explained below. First, when photographing is to be performed while preventing image blur, 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 camera shake in the horizontal and vertical directions is detected by the angular velocity sensors 47 and 50, and the control circuit 4
6 controls the actuator 48 and the control circuit 49.
By driving the actuator 51 by controlling the output of the angular velocity sensors 47 and 50 so that it always approaches 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 the camera body 11 is stabilized. images can be taken,
VTR connected to VTR connection terminal 44 (not shown)
You can record this video.

Next, when shooting without correcting image blur, connect the camera body 11 and the connecting member 53,
Connecting the connecting member 53 and the hand grip 34,
The whole thing is fixed as one piece and it takes pictures like a normal video camera.

As described above, by installing a unit that prevents image blur, you can obtain stable images with less image blur even when shooting hand-held, and when using a tripod, etc., it is necessary to prevent image blur. By installing a unit that integrally fixes the camera body and hand grip when the camera is not in use, power consumption can be reduced because there is no need to use electricity to correct image blur.

Effects of the Invention As described above, the present invention includes a holding means that allows the entire device to be held by a photographer, and a holding means that can be attached between the camera body and the holding means, and a holding means that allows the photographer to hold the entire device. a correction means for correcting so as to reduce screen blur of an image, and a connecting means for removing the correction means and connecting the camera body and the holding means when there is no need to correct the screen blur of the image. The configuration makes it possible to use the correction means as necessary for image stabilization, and when shooting with image blur correction, the correction means can be attached to the camera body, allowing for blur-free shooting and normal use. When taking pictures without correction, do not attach the correction means to the camera body.
By integrally fixing the camera body and the holding means, you can perform normal shooting with great mobility, and there is no need to supply power to the correction means, reducing power consumption. You can efficiently shoot according to your needs.

[Brief explanation of the drawing]

Fig. 1 is a configuration diagram of the main parts of an imaging device according to an embodiment of the present invention, Fig. 2 is a block diagram showing electrical connections, Fig. 3 is a partial sectional view showing the state in which it is attached to a connecting member, Figure 4 is a front view of a conventional imaging device.
FIG. 5 is a side view. 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, 34 ... Hand grip, 53 ... Connection member, 54 ... Convex part, 56 ... recess.

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, a holding means that allows a photographer to hold the entire device, and the camera body and the holding means. a correction means that can be attached between the camera body and corrects to reduce screen blur of an image taken by the camera body; and a correction means that can be removed when there is no need to correct screen blur of the image. A photographing device comprising a connecting means for connecting the camera body and a holding means.