JPH08139988A - Composite camera - Google Patents

Abstract

PURPOSE: To display an erected video reproduced image at all times even when a camera main body has any inclination with respect to a main lens optical axis. CONSTITUTION: In the composite camera of a type where a 1st camera section and a silver salt camera section use a main lens 5 in common, an angle sensor 1 senses angle information when the camera main body is turned around the optical axis of the main lens. An image pickup element turning device 2 drives an image pickup element 14 in a direction to cancel the turning of the camera main body synchronously with the angle information and picks up an object image to be an erected image with the image pickup element whose direction is corrected based on optical image information divided into two by a half mirror 7. When the image is recorded by a recorder 10 and reproduced by a monitor or the like, even when the camera main body has any tilt around the optical axis of the main lens, the erected image is always displayed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a compound camera in which a silver salt still camera unit and a video camera unit are integrated in the same housing.

[0002]

2. Description of the Related Art Conventionally, a compound camera in which a silver salt still camera unit and a video image pickup unit are integrated has been troublesome because it is necessary to prepare separate cameras for still picture shooting and video shooting, respectively. As a camera to release users, Japanese Patent Publication No. 61-97639 "Camera device"
It is a well-known photographic device as disclosed in etc., and it is roughly classified into a type that shares the lens between the silver salt camera part and the video camera part and distributes it with a half mirror, and a type that uses a dedicated lens for each There is.

[0003]

However, in the above-mentioned conventional example, as shown in FIG. 14 (a), the silver salt camera film and the video camera portion on the silver salt camera film are being photographed at the same time or during the video photographing. When the camera body is rotated around the optical axis of the main lens by changing the angle of view from the normal vertical direction to the left and right as shown in FIG. 14B, the angle is 90 degrees on the silver halide film. An image is recorded in the vertical position, the video image information is recorded on the image pickup device (CCD) as the top-bottom information as the left-right information, and the silver salt film can be printed as shown in FIG. 15A. But,
At the time of reproducing the video image, there occurs a problem that the general top-bottom information is displayed on the screen of the reproducing device (TV monitor or the like) in a substantially horizontal direction as shown in FIG. 15B.

Therefore, an object of the present invention is regardless of the type in which the silver salt camera section and the video camera section share a lens or the type in which each has a dedicated lens, even if the camera body rotates about the optical axis of the main lens. The video reproduction image is to provide a compound camera that can always display upside down.

[0005]

In order to achieve the above object, the present invention according to claim 1 provides a first camera section for picking up an image using photoelectric conversion means, and an image pickup without using the photoelectric conversion means. In a composite camera in which the second camera section shares at least a part of the image pickup optical system, angle information detection means for detecting angle information when the camera body rotates about the main lens optical axis, and the angle information. The photoelectric conversion means rotation means for rotating the photoelectric conversion means of the first camera section by a predetermined angle is provided.

Further, according to the present invention as defined in claim 2, the video camera section for electrically recording the image information on the recording medium and the silver salt camera section for recording the image information on the silver salt film each have an integral type composite lens. In the camera, angle information detecting means for detecting angle information when the camera body rotates about the optical axis of the main lens, and image pickup element rotating means for rotating the image pickup element of the video camera part by a predetermined angle based on the angle information. Is equipped with.

Further, the present invention according to claim 3 is the compound camera according to claim 1, further comprising image rotating means for electrically rotating a picked-up image of the video camera portion at a predetermined angle based on the angle information. ing.

Further, the present invention according to claim 4 is the compound camera according to claim 2, further comprising image rotating means for electrically rotating a captured image of the video camera portion at a predetermined angle based on the angle information. ing.

Further, in the present invention as set forth in claim 5, the angle information detecting means includes a light-shielding portion for forming a half-crescent-shaped gap between a semicircular great circle and a small circle in which end points are overlapped on a transparent plate. Composed of a measuring plate formed as, a weight of a constant mass that draws a vertical line by its own weight with the center of the semicircular great circle as a fulcrum, and an optical sensor that detects the position of the light-shielding portion on the vertical line by a light amount change. It has an angle sensor for

Further, in the present invention as set forth in claim 6, the angle information detecting means is composed of a weight that draws a perpendicular line about its fulcrum by its own weight and switches arranged on both sides of the fulcrum at a constant angle. It has an angle sensor.

Further, according to the present invention as set forth in claim 7, the image pickup device rotating means comprises an image pickup device fixing plate for fixing the image pickup device, a fixing plate drive unit for rotating the image pickup device fixing plate, and It has a rotation controller for controlling the rotation angle of the image pickup element fixing plate based on the angle information.

Further, in the present invention as set forth in claim 8, the image rotating means performs an image memory for temporarily storing picked-up image data and a rotation process of the image data on the image memory based on the angle information. It has an image rotation control unit.

[0013]

According to the present invention as set forth in claim 1, it is a compound camera of the type in which the video camera section and the silver salt camera section share a lens, and the angle information detecting means centers the optical axis of the main lens of the camera body. Since the image sensor is rotated by detecting the rotation angle and rotating the image sensor according to the rotation angle of the camera body, the camera is a compound camera of the type in which the video camera section and the silver salt camera section share a lens. By rotating the image sensor by a predetermined angle in a direction to cancel the rotation of the main body, the image input of the image sensor can be always made upright.

According to the second aspect of the present invention, the video camera section and the silver salt camera section are compound cameras of the type that each use a dedicated lens, and the main lens optical axis of the camera body is moved by the image pickup element rotating means. Detect the rotation angle around the center,
Since the image pickup element is rotated by the image pickup element rotating means in accordance with the rotation angle of the camera body, the camera body is rotated by a compound camera of a type in which the video camera section and the silver salt camera section each use a dedicated lens. By rotating the image sensor by a predetermined angle in the direction to turn it off, the image input of the image sensor can be always made upright.

According to the present invention as set forth in claim 3, it is a compound camera of a type in which the video camera section and the silver salt camera section share a lens, and the image rotating means provides a predetermined angle image corresponding to the rotation angle of the camera body. Since the rotation process of the data itself is performed, it is a compound camera of the type in which the video camera section and the silver salt camera section share the lens, and the input image data tilted by the rotation of the camera body is electrically rotated to correct the top and bottom. It can be output as vertical image data.

According to the fourth aspect of the present invention, the video camera section and the silver salt camera section are compound cameras of the type using dedicated lenses, respectively, and the image rotation means determines a predetermined value corresponding to the rotation angle of the camera body. Since the rotation processing of the angle image data itself is performed, the video camera section and the silver salt camera section use a dedicated lens for each type of compound camera, and the input image data tilted by the rotation of the camera body is electrically rotated and corrected. It can always be output as upright image data.

According to the present invention as set forth in claim 5, the angle sensor of the angle information detecting means has a plumb line present on the half-crescent-shaped light-shielding portion formed on the measuring plate according to the rotation angle of the camera body. The position changes from the narrow end to the wide end of the light-shielding part, and the rotation angle is detected from the amount of light detected by the optical sensor that changes correspondingly, so the camera body is upright or left-right horizontal or tilted many times. You can detect

According to the sixth aspect of the present invention, in the angle sensor of the angle information detecting means, the switches arranged at fixed angles on both sides of the fulcrum of the weight, which draws a perpendicular line by its own weight, are provided at fixed rotation angles of the camera body. Therefore, it is possible to detect a constant rotation angle of the camera body such that the top and bottom are upright or left and right.

According to the seventh aspect of the present invention, the rotation control section of the image pickup element rotation means controls the rotation drive amount of the fixed plate drive section based on the angle information when the camera body rotates. Since the image pickup element fixing plate to which the image pickup element is fixed by the fixing plate drive section is rotated by a predetermined angle, the rotation angle of the camera body is offset by the rotation of the image pickup element, so that an upright image can be obtained at all times. .

According to the present invention as set forth in claim 8, since the rotation control section of the image rotation means performs the rotation processing of the image data on the image memory in correspondence with the angle information of the camera body, the rotation of the camera body is performed. The angle can be corrected by the data processing of the image data to always output an image in which the upside down is upright.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a configuration diagram of a compound camera according to a first embodiment of the present invention.

The first embodiment shown in FIG. 1 is an example of a compound camera of the video camera section and the silver salt camera section which are used in common with a lens. An angle sensor (body position sensor) 1 for detecting how many times the camera body is tilted upside down, uprightly, or vertically about the optical axis of the main lens 5 is provided.
An image sensor rotation device 2 for rotating the image sensor (CCD) 14, which is one of photoelectric conversion means, in the direction of canceling the rotation of the camera body based on the information of the angle sensor 1 is provided. There is.

In addition, the iris 6 located between the main lens 5 and the silver salt film 9, and the iris 6 and the silver salt film 9, which have the same structure as the conventional lens-shared type compound camera.
A shutter 8 disposed between the shutters, and a half mirror 7 disposed between the iris 6 and the shutter 8 to distribute incident light to the video camera side. The camera unit includes a recording device 10 that captures incident light through a half mirror 7 through a mirror 11, a relay lens 12, and an iris 13 with a CCD 14 to record an image signal.

FIG. 5 is a block diagram of an angle sensor using the optical sensor shown in FIG. The angle sensor 1 constituting the angle information detecting means shown in FIG. 5 has a semi-circular transparent plate having a great radius of a circle, and a semi-circle having a small radius in which the line connecting the center points and the left end point are aligned with each other. , A half-crescent-shaped gap generated between a large circle and a small circle is shielded by black printing or the like to form a light shielding portion 41 to form a measurement plate 40, and a constant mass is provided with the center point of the large circle as a fulcrum. Suspended weight 42, suspended thread 43
Shall always draw a vertical line by its own weight. The portion of the light shielding portion 41 existing on the perpendicular line is, for example, the projector 44 and the measurement plate 4
If detected by an optical sensor composed of a light receiver 45 or the like arranged on the side opposite to 0, the position on the perpendicular line of the light shielding portion 41 changes in synchronization with the inclination of the camera body, and thus the optical sensor according to the rotation angle. Since the detected light amount is changed, the detection value of the optical sensor is A / D converted by the A / D converter 46, and the angle calculation unit 47 formed of a microcomputer performs arithmetic processing to obtain angle information.

FIG. 6 is a diagram showing an example of an angle information graph of the angle sensor shown in FIG. 5, in which the half crescent-shaped light shielding portion 41 of the measuring plate 40 shown in FIG. By sweeping with an optical sensor accordingly, the rotation angle of the camera body is centered around 0 degree where the top and bottom are upright.
It is possible to detect from -90 degrees to +90 degrees in the horizontal position.

FIG. 7 is a block diagram of an angle sensor using a switch. The angle sensor 1 of FIG. 7 is another example using a micro switch, in which the weight 70 is suspended around a fulcrum, and the suspended thread 71 always draws a vertical line, and a constant angle (for example, 60 Angle), the micro switch, the switch-1, and the switch-2 are arranged on the camera body side, and the weight 70 or the suspended member is pushed by the rotation of the camera body to actuate the switch-1 or the switch-2 to operate the detector. The switch operation is detected by 72 to obtain rotation angle information.

FIG. 8 is a diagram showing an example of the angle information graph of the angle sensor shown in FIG. 7. In this case, since the arrangement angle of the micro switch is set to 60 degrees, the camera body indicates the upright position. -6 if tilted to the left or right horizontally by 60 degrees or more
Angle information indicating the horizontal orientation of the camera body is obtained from the detector 72 at the positions of 0 degree and +60 degrees.

This angle sensor is a simple type that distinguishes the camera body from the upright position and the left-right position, and the angle of the microswitch is not limited to -60 ° and + 60 °, and is set appropriately in the vicinity. do it.

Further, both of these angle sensors have an advantage that necessary angle information can be obtained with a simple structure, but of course an encoder type sensor having a more complicated structure or a gyro type angle sensor can also be used. , It is also possible to use them in a device equipped with them.

FIG. 9 is a block diagram of the image pickup element rotating device shown in FIG. The image pickup device rotating device 2 which constitutes the image pickup device rotating means shown in FIG. 9 includes a CCD fixing plate 90 for fixing the CCD 14, a rotation shaft forming a rotation driving unit of the CCD fixing plate 90, and a print code for rotation detection. 91, rotation gear group 9
2, a rotation motor 93, a driver 95 for driving the motor 93, a rotation detector 94 for detecting the rotation detection print code 91 for feedback control, and angle information from the camera angle detection means of the angle sensor 1 described above. A rotation control unit 96 having a microcomputer configuration for performing rotation control is provided.

Next, the overall operation of the above configuration will be described.

FIG. 10 is an operation flow of the image pickup element rotating device shown in FIG. First, the rotation control unit 96 uses the angle sensor 1
(S101) and determines whether the rotation angle of the camera body is equal to or greater than a predetermined value indicating horizontal orientation (S10).
2). If the value is equal to or more than the predetermined value, the angle and direction of rotating the image sensor 14 are determined (S103), the motor 93 is rotated through the driver 95, and the C group is rotated via the gear group 92 and the rotation shaft 91.
The CD fixing plate 90 is rotated by an angle that cancels the rotation angle of the camera body and creates an upright image (S105), (S10).
6).

At this time, the rotation detector 94 reads the rotation print code and judges whether the rotation angle is proper or not to carry out feedback control (S107). When the CCD rotation angle reaches a predetermined position, the motor is moved to the proper position. 93 is stopped (S104). If the rotation angle of the camera body is very small in S102, CCD drive is not performed, and S101 is executed via S104.
Return to.

FIG. 11 is an explanatory diagram of image correction of the compound camera shown in FIG. FIG. 11 shows a CCD camera 2 as shown in FIGS.
The image of the CCD 14 is mechanically corrected by means of the rotation of the camera body as shown in FIG.
By rotating the image sensor 14 in a direction in which the rotation angle of the camera body is canceled based on the angle information of the angle sensor 1 as shown in (b), the image information can be obtained at any center of the optical axis of the main lens 5 of the camera body. Despite the rotation, the upside-down state is input to the CCD 14 upright as shown in FIG. 11C, and the captured image signal is recorded in the recording device 10.
As shown in FIG. 11 (d), the video reproduction image can be always displayed upright on a monitor or the like, regardless of the inclination of the camera main body about the optical axis of the main lens.

As described above, in this embodiment, a composite camera of the type in which the video camera section and the silver salt camera section share a lens, and the camera body is always inclined regardless of the optical axis of the main lens. The video playback image can be displayed upside down.

Next, a second embodiment of the present invention will be described. FIG. 2 is a configuration diagram of a compound camera according to the second embodiment of the present invention. The second embodiment shown in FIG. 2 is a case where the video camera unit and the silver salt camera unit are applied to a compound camera having dedicated objective lenses 5A and 5B, respectively.

The same components as those of the first embodiment are designated by the same reference numerals, and the duplicated description will be omitted. The operations of the angle sensor 1 and the CCD rotation device 2 are also the same as in the first embodiment. According to the second embodiment, the video camera unit and the silver halide camera unit use the dedicated lenses 5A and 5B, respectively. With a camera, no matter how the camera body tilts about the optical axis of the main lens, the video playback image can always be displayed upright.

Next, a third embodiment of the present invention will be described. FIG. 3 is a block diagram of a compound camera according to the third embodiment of the present invention. A third embodiment shown in FIG. 3 is a lens-combined type compound camera of the first embodiment shown in FIG. 1, in which the CCD rotating device 2 is replaced by an image memory 3 as image rotating means and a microcomputer (CPU). An image rotation control unit 4 is provided to electrically rotate and correct image data on an image memory.

The same components as those of the other first embodiment are designated by the same reference numerals, and the duplicated description will be omitted.

FIG. 12 is an explanatory view of the image correction of the compound camera shown in FIG. 3, in which the rotation of the camera body as shown in FIG. 12A is detected by the angle sensor 1 as angle information, and the image rotation controller 4 As shown in FIG. 12B, the imaged image of the CCD 14 which is still in the upright state is A / D-converted to be image data for each pixel, and each address (1, 2, 4 ...
n), the coordinate position of the address of the new image data is calculated by the rotation angle calculation based on the angle information from the angle sensor 1, and the image data is read out for reassembly as shown in FIG. 12C. The image is output as upright image data. In this case, since the vertical and horizontal aspect ratios of the reproduction monitor and the like are different, there is a case where the left and right information of the image is lost as shown in FIG. 11C, but the vertical information as shown in FIG. 12 is truncated and the reproduced image is displayed as shown in FIG. 12F according to the aspect ratio, or image processing is performed so that the reproduced image is reproduced and displayed as shown in FIG.

As described above, in the third embodiment, the electrical image rotation correction based on the angle information of the angle sensor 1
It is a compound camera that shares the lens between the video camera section and the silver salt camera section. Even if the camera body has any inclination around the optical axis of the main lens, the video playback image should always be displayed upright. You can

Next, a fourth embodiment of the present invention will be described. FIG. 4 is a configuration diagram of a compound camera according to the fourth embodiment of the present invention. The fourth embodiment shown in FIG. 4 is the second embodiment shown in FIG.
The video camera unit and the silver salt camera unit of the embodiment are compound cameras of the type using dedicated lenses, respectively, and the CCD rotating device 2
Instead, an image rotation controller 4 including an image memory 3 and a microcomputer (CPU) is provided to electrically correct the image rotation.

The same components as those of the second embodiment are designated by the same reference numerals, and duplicate description will be omitted. The compound camera of the fourth embodiment has the same procedure as that of the third embodiment regarding the erecting process of the image by the image rotation control unit 4 performed on the image memory 3, and the video camera unit and the silver halide camera unit each have a dedicated lens. This is a compound camera of the type that uses the angle sensor 1 to electrically correct the rotation of the image based on the angle information, and no matter how the camera body tilts about the optical axis of the main lens, the video playback image is always upside down. It can be displayed upright.

Further, in the present invention, the function of correcting the image upside-down by the image pickup device rotating device 2, the image memory 3, and the image rotation control unit 4 described in each embodiment is described for the rotation camera shake correction of FIG. As shown in the figure, the present invention can be applied to the correction of rotational camera shake of the camera body during shooting as shown in FIG. In this case, it is possible to correct the image of the rotating camera shake of the video camera unit as shown in FIG. 13B as a corrected image of FIG. 13C by the image upright correction function.

[0045]

As described above, the compound camera of the present invention as defined in claim 1 is a compound camera of the type in which the integrated lens group is shared by the video camera section and the silver salt camera section. Angle information detecting means for detecting angle information when the lens is rotated about the optical axis of the lens, and an image pickup device rotation for rotating a two-dimensional image pickup device, which is one of photoelectric conversion means of the video camera section, by a predetermined angle based on the angle information. Since it has moving means, it is a compound camera of the type that the video camera section and the silver salt camera section share the lens, even if the camera body has any inclination around the optical axis of the main lens,
Since the photoelectric conversion can always be performed in the upright state, the video image can be always displayed in the upright state without deterioration in image quality due to image processing.

Further, in the compound camera of the present invention as defined in claim 2, in the compound camera of the type in which the video camera section and the silver salt camera section each use a dedicated lens, the camera body rotates about the optical axis of the main lens. Since the angle information detecting means for detecting the angle information in the case of and the image sensor rotating means for rotating the image sensor of the video camera section by a predetermined angle based on the angle information are provided, the video camera section and the silver salt camera section are It is a compound camera of the type that uses a dedicated lens for each, and even if the camera body has any inclination about the optical axis of the main lens, the video playback image can always be displayed upright.

Further, in the compound camera of the present invention as defined in claim 3, in the compound camera of the type in which the video camera section and the silver salt camera section share a lens, the image picked up by the video camera section is set at a predetermined angle based on angle information. Since it is equipped with an image rotation means that performs electrical rotation processing, it is a compound camera of the type in which the video camera section and the silver salt camera section share a lens, even if the camera body has any inclination around the optical axis of the main lens. Due to the electrical correction, the video reproduced image can always be displayed upside down.

Further, the compound camera of the present invention according to claim 4 is a compound camera of a type in which a dedicated lens is used in each of the video camera section and the silver salt camera section, and the image picked up by the video camera section is used as angle information. Since it is equipped with an image rotating means for electrically rotating a predetermined angle based on the above, it is a compound camera of a type that uses a dedicated lens for each of the video camera section and the silver salt camera section. Even if there is a tilt, the video reproduction image can always be displayed upright by the electrical correction.

Further, in the compound camera of the present invention as set forth in claim 5, the angle information detecting means shields the half crescent-shaped gap between the semicircular great circle and the small circle which are overlapped with the end points on the transparent plate. It is composed of a measuring plate formed as a part, a weight of a constant mass that draws a perpendicular line by its own weight with the center of the semicircular great circle as a fulcrum, and an optical sensor that detects the position of the light shielding part on the perpendicular line by the change in the light amount. Since it has an angle sensor, it can detect whether the camera body is upside down, left and right sideways, or how many times it is tilted, and output angle information that corrects the video playback image upside down. At the same time, it is also possible to output angle information for correcting the normal camera shake of the camera body.

Further, in the compound camera of the present invention as set forth in claim 6, the angle information detecting means is composed of a weight which draws a perpendicular line by its own weight around the fulcrum and switches which are arranged on both sides of the fulcrum at a constant angle. Since it has an angle sensor, a simple and inexpensive angle sensor for angle information can be constructed.

Further, in the compound camera of the present invention as set forth in claim 7, the image pickup device rotating means has an image pickup device fixing plate, a fixing plate drive unit for rotating the image pickup device fixing plate, and the rotation angle thereof is an angle. Since the camera has a rotation control section that controls based on information, the rotation angle of the camera body can be mechanically rotated to cancel it, and the video playback image can always be displayed upright. It is a thing.

Further, in the compound camera of the present invention as set forth in claim 8, the image rotation means has an image memory for temporarily storing image data, and an image rotation for performing rotation processing of the image data on the image memory based on angle information. Since the control unit is provided, the rotation angle of the camera body can be canceled by the rotation processing of the image data on the image memory so that the video reproduction image can always be displayed upright.

Further, by setting a high response frequency for the rotation angle correction, it is possible to remove the rotation blur of the screen due to the camera shake of the photographer.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a compound camera according to a first embodiment of the present invention.

FIG. 2 is a configuration diagram of a compound camera according to a second embodiment of the present invention.

FIG. 3 is a configuration diagram of a compound camera according to a third embodiment of the present invention.

FIG. 4 is a configuration diagram of a compound camera according to a fourth embodiment of the present invention.

FIG. 5 is a configuration diagram of an optical sensor type angle sensor of the present invention.

6 is a diagram showing an angle information graph of the angle sensor shown in FIG.

FIG. 7 is a configuration diagram of a switch type angle sensor of the present invention.

8 is a diagram showing an angle information graph of the angle sensor shown in FIG.

FIG. 9 is a configuration diagram of an image pickup element rotating device of the present invention.

10 is a flowchart of the operation of the image pickup element rotation device shown in FIG.

FIG. 11 is an explanatory diagram of image correction of the compound camera shown in FIG.

FIG. 12 is an explanatory diagram of image correction of the compound camera shown in FIG.

FIG. 13 is an explanatory diagram of rotary camera shake correction of the compound camera of the present invention.

FIG. 14 is an explanatory diagram of a captured image of a conventional compound camera.

FIG. 15 is an explanatory diagram of a reproduced image of the compound camera shown in FIG.

[Explanation of symbols]

 1 Angle Sensor 2 Image Sensor Rotating Device 3 Image Memory 4 Image Rotation Control Section 5 Lens 6,13 Iris 7 Half Mirror 8 Shutter 9 Silver Salt Film 10 Recording Device 11 Mirror 12 Relay Lens 14 CCD

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical indication H04N 5/781

Claims (8)

[Claims] 1. A composite camera in which a first camera section for taking an image using photoelectric conversion means and a second camera section for taking an image without using the photoelectric conversion means share at least a part of an imaging optical system. An angle information detection means for detecting angle information when the camera body rotates about the optical axis of the main lens, and a photoelectric conversion means rotation means for rotating the photoelectric conversion means of the first camera section by a predetermined angle based on the angle information. A compound camera characterized by having moving means. 2. An integrated compound camera in which a video camera section for electrically recording image information on a recording medium and a silver salt camera section for recording on a silver salt film each have a dedicated lens, wherein the camera body is the main lens optical axis. A compound camera, comprising: angle information detecting means for detecting angle information when the image sensor is rotated around the center; and image sensor rotating means for rotating the image sensor of the video camera part by a predetermined angle based on the angle information. . 3. The compound camera according to claim 1, further comprising image rotating means for electrically rotating a captured image of the video camera unit at a predetermined angle based on the angle information. 4. The compound camera according to claim 2, further comprising image rotating means for electrically rotating a captured image of the video camera unit at a predetermined angle based on the angle information. 5. The measuring plate, wherein the angle information detecting means forms a semi-crescent-shaped gap between a semicircular large circle and a small circle, which overlap each other on a transparent plate with their end points aligned, and the semicircular shape. Of the mass of a constant mass that draws a vertical line by its own weight with the center of the great circle as a fulcrum, and an angle sensor that is configured by an optical sensor that detects the position of the light-shielding portion on the vertical line by a change in the amount of light. The compound camera according to claim 1, wherein 6. The angle information detecting means includes an angle sensor composed of a weight that draws a vertical line about its fulcrum by its own weight and a switch arranged on both sides of the fulcrum at a constant angle. 5. The compound camera according to 1 of 1 to 4. 7. The image pickup device rotating means includes an image pickup device fixing plate for fixing the image pickup device, a fixing plate drive section for rotating the image pickup device fixing plate, and a fixing plate drive unit for rotating the image pickup device fixing plate based on the angle information. 3. The compound camera according to claim 1, further comprising a rotation control unit that controls a rotation angle. 8. The image rotation means has an image memory for temporarily storing captured image data, and an image rotation control section for performing a rotation process of the image data on the image memory based on the angle information. The compound camera according to claim 3 or 4.