JPH08125895A - Composite camera - Google Patents

Abstract

PURPOSE: To prevent operation from becoming complicated, and besides, to prevent the driving sound of a silver salt camera from exerting influence upon the sound recording of a video camera in a composite camera provided with a video camera function and a silver salt still camera function by letting film driving operation stand by when the recording mode of a video camera part is detected. CONSTITUTION: A camera microcomputer 40 to receive and control operation input such as zoom exposure, AF, etc., a mode microcomputer 41 to control the release of the camera body, the feed of a film or mode setting, and a mechanism microcomputer 42 to drive and control a tape recording/reproducing video camera are made a core. Then, the mode microcomputer 41 is provided with a silver salt still camera mode discriminating means and a video camera mode discriminating means, and determines each mode and operation. In the case that the video camera is in a recording mode, the silver salt still camera is shifted to a silver salt camera film auto-loading standby mode.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a compound camera, and more particularly, to a photographing device in which a still camera using a silver halide photographic film and a movie video camera are combined.

[0002]

2. Description of the Related Art Conventionally, a video camera and a still photographic camera have been separately owned by users and used for their respective purposes. Also, there have been proposed products that are configured in the same housing in a grip of a video camera or in parallel with the camera, or products in which a viewfinder of a single-lens reflex still camera is replaced and a video camera unit is attached.

For example, in US Pat. No. 3,546,375, a movable mirror is arranged in the optical path of an objective lens for photographing, and the position of the movable mirror is selectively switched so that the recording medium remains stationary on a different recording medium. It is disclosed that an image and a moving image can be recorded respectively.

In Japanese Utility Model Laid-Open No. 57-96444, there is disclosed a video camera body integrally provided with an optical photographing section for photographing a silver salt film, or as a detachable body. ing.

Further, Japanese Patent Application Laid-Open No. 1-185533 proposes a camera with a confirmation function for displaying, on a monitor, an image signal from a photoelectric conversion photographing element corresponding to an image formed on a silver salt film in a composite camera. ing.

However, in each of the above-mentioned conventional examples, the constituent means necessary for recording the silver salt still picture and the video recording at the same angle of view at the same time, the respective cameras are combined. In order to share common functions and achieve miniaturization, as well as technical means for power saving, to record audio of various driving sounds allowed by conventional silver halide still cameras. It did not give a sufficient solution for the impact and so on.

Further, conventionally, as disclosed in Japanese Patent Laid-Open No. 63-248285, it has been proposed to prohibit the film driving of a silver salt still photographic camera during video recording of a moving image. In addition, it has been proposed to improve operability such as auto-loading in which a silver salt film camera, a video camera, and the like are automatically mechanically driven to a shooting ready state when a silver salt film, a magnetic tape cassette, or the like is mounted.

[0008]

However, the simultaneous use of the conventional video camera and the silver salt still camera has the following drawbacks. That is, 1. Since the operation of the silver salt still camera is prohibited so as not to affect the audio recording of the video, the silver salt still camera cannot be driven. Since there is no way to recover after the operation of the silver salt still camera is prohibited, the silver salt still camera cannot be shot again.

3. Also, when shooting a silver salt still camera, the mechanical chassis of the video camera moves when the magnetic tape cassette is attached, and the vibration causes the silver salt camera still picture to blur. Mechanical drive parts such as motors of silver salt still cameras and video cameras move at the same time, so the power supply voltage drops with a single power supply and the system goes down.

The present invention has been made to solve these problems in view of the above situations, and has the following various objects; the first object is a video camera and a silver salt still. Even if the cameras are used at the same time, the operation is not complicated and the driving sound of the silver halide camera is prevented from affecting the audio recording of the video camera.

The second object is to enable systemization with a single power source without complicating the operation even if the video camera and the silver salt still camera are used at the same time.

A third object is to improve the operability by automating the respective operations of the video camera and the silver salt still camera.

A fourth object is to prevent camera shake caused by vibrations of the video camera and the silver salt still camera.

[0014]

In order to achieve the above object, the present invention has the following configurations, respectively: (1) A still camera unit for photographing a field and recording a still image thereof. A film camera that captures a scene and records a moving image of the field, and a film detection unit that detects film mounting of the still camera unit; a film drive unit that drives the film; What is claimed is: 1. A compound camera, comprising: a still camera mode discriminating means for deciding the operation of the still camera section on the basis of information; and a video camera mode discriminating means for deciding the operation of the video camera section on the basis of external and internal information. When the section operation mode discriminating unit detects the video camera section recording mode, the film drive operation is put on standby.

(2) In the composite camera, when the video camera operation mode discrimination means detects that the video camera operation is in transition, the film drive operation is put on standby.

(3) In the above compound camera, when the film driving operation is on standby, when the video camera operation mode discriminating means detects a mode other than the video camera recording mode and the mechanical transition, the film is again operated. Drive operation is performed.

(4) In the above compound camera, a display means is provided, and when the film drive operation is made to stand by by the still camera section operation mode determination means, a display is performed.

(5) The still camera section has a still camera section for photographing a field and recording a still image thereof, and a video camera section for photographing the field and recording a moving image thereof. A film driving means for driving the film, a still camera mode discriminating means for determining the operation of the still camera section based on external and internal information, a tape detecting means for the video camera section, a tape driving means for driving the tape, and an external device. And a video camera mode discriminating means for deciding the operation of the video camera portion on the basis of internal information, wherein when the still camera portion operating mode discriminating means detects that the still camera portion shutter is operating, the tape drive is performed. Hold the operation.

(6) In the composite camera, when the still camera section operation mode determination means detects the still camera section feeding mode, the tape drive operation is put on standby.

(7) In the above compound camera, when the tape drive operation is on standby, when the still camera operation mode determination means detects a still camera shutter operation and a mode other than the feeding mode, the tape drive operation is performed again. I do.

(8) In the above compound camera, a display means is provided, and when the tape drive operation is put on standby by the video camera operation mode determination means, a display is made.

[0022]

With the above-mentioned respective constitutions of the above items (1) to (8) according to the present invention, the effects shown in the following same numbered items are obtained corresponding to each item.

(1) By making the film driving operation stand by, the driving sound of the silver salt camera does not affect the audio of the video. (2) By making the film driving operation stand by, the silver salt still camera and the video. Since the mechanical drive parts such as each motor of the camera do not operate at the same time,
System can be realized with a single power source, and it can be expected to reduce the size, weight, and cost of the device. (3) The operation can be automated by performing the film drive operation again. (4) This display The operability can be improved by the means.

Further, (5) since the tape driving operation is on standby, the vibration shake of the silver salt camera is eliminated. (6) Since the tape driving operation is on standby, the silver salt camera is the same as in the above item (2). Since the mechanical drive parts such as the motors of the video camera do not operate at the same time, the system can be systemized even with a single power source, which can contribute to the small size, light weight and low cost of the device. (7) The tape again By performing the driving operation, the operation can be automated as in the case of the item (3), and (8) the display operation can improve the operability as in the case of the item (4).

In the present specification, the term "composite camera" means that the still camera unit and the video camera unit are built in one housing, or that the still camera unit and the video camera unit are independent from each other. Built-in, or if they are built into their respective independent housings, and if the two housings are separable, regardless of whether each can be used as a single unit, It is to be interpreted in a broad sense, including a photographing device having both a video camera function.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of a compound camera according to the present invention will be described below in detail with reference to the drawings. FIG. 1 is a left side view for explaining the constituent functions of the compound camera of this embodiment.

In FIG. 1, reference numeral 1 denotes an exterior cover which constitutes a compound camera, and is composed of a plurality of parts such as fastening parts such as screws. 2 is a lens unit for capturing an image on a silver salt film, 3 is the lens unit 2,
A lens barrel for holding the lens element, 4 is an iris diaphragm for shooting a silver salt still image, and 5 is a silver salt film. In the present embodiment, the lens unit 2 is a zoom lens, and is linked with an automatic or manual zoom operation to move the optical axis 7
It has a variable power lens element group which is movable on a and a focusing lens element group which is driven by information from an automatic focus adjusting device which will be described later.

Reference numeral 6 denotes a shutter device arranged immediately in front of the silver salt film, which includes a shutter curtain 6a and a shutter frame 6
b and the like. Reference numeral 7 is a semitransparent thin film mirror for allocating an image from the subject to the silver salt film side and the video shooting element side, 7a is an optical axis incident from the subject side, and 7b is the semitransparent thin film mirror 7. Optical axes 7c and 7d which pass through and reach the silver salt film side are optical axes reflected by the semitransparent thin film mirror 7, respectively.

Field lenses 8a and 8b are provided on the optical axis 7c to adjust the pupil of the object image, and 9
Is a reflection mirror for deflecting the photographing optical axis 7c,
Is a reduction lens unit provided on the optical axis 7b, and includes a video aperture unit 11 for capturing video moving images inside. Reference numeral 12 is an optical low-pass filter, and 13 is a solid-state image sensor. Reference numeral 14 is an aerial image formed at a position equivalent to the silver salt film 5, and is re-imaged on the solid-state image pickup device 13 via the reduction lens unit 10.

Reference numeral 14 denotes a sub-mirror that can be retracted at the rear of the semitransparent thin film mirror 7 and guides a part of the photographing light to the automatic focus detection device 15. The automatic focus detection apparatus according to the present embodiment compares a plurality of images generated by light fluxes passing through a plurality of different areas of a photographing lens with a conventionally known phase difference shift detection method, and compares the images with the defocus amount on the film surface 5. Although the direction is detected, the solid-state imaging device 1 is always
Since a subject image can be obtained on the solid-state image pickup device 13,
The automatic focus adjustment by the blur method may be performed based on the high frequency image signal from, or may be the combined method of the shift method of the present embodiment.

Numeral 16 is a light shielding plate which can be retracted at the time of photographing in order to prevent light leakage because the semitransparent thin film mirror 7 is used. Reference numeral 17 denotes a back lid unit which is provided so as to be openable and closable when the silver salt film 5 is attached. In this embodiment, a 135 type silver salt film is used, but the invention is not limited to this, and a drop-in type film or a disc type film may be used.

Reference numeral 18 is an electronic viewfinder unit,
In order to monitor the video signal from the solid-state image sensor 13, the video is output to the small liquid crystal 19 and observed through the reflection mirror 20 and the eyepiece lens 21. The viewfinder unit 18 is rotatable about a rotary shaft 22 as a spindle.

In the structure of FIG. 1, the iris diaphragm 4 for silver salt still photography is always kept open during video recording of a moving image, and a predetermined diameter is reached when a release switch for silver salt still photography, which will be described later, is pressed. Is narrowed down to. Therefore, at the time of shooting a moving image, the exposure is controlled only by the video aperture unit 11 in the reduction lens unit 10, and if necessary, the accumulation time of the image pickup device and the gain of the signal processing system are changed to obtain an appropriate exposure.

Reference numeral 23 denotes a secondary battery which is removably attached to the lower part of the device, and is a common single power source for supplying all the power used by the device. In front of the lens unit 2, an openable and closable barrier 25 incorporating a strobe 24 is provided. Reference numeral 26 is a microphone for recording audio during video shooting, and 27 is an external terminal as an interface with an external device such as a television or a stereo device.

FIG. 2 is a top view of the camera of this embodiment.
28 is a cartridge room of the silver salt film 5, and 29
Is a spool for winding up the film 5.
In this embodiment, a prewind system is adopted in which the last frame is wound up on the spool 29 in advance when the film is mounted and the exposed frames are sequentially rewound during shooting.

Reference numerals 30 and 31 are a zoom driving motor and a focus driving motor of the taking lens. Reference numeral 32 denotes a zoom button which is arranged at a position that can be operated by the right hand of a photographing user, 33 denotes a main mode selection switch which also serves as a power switch, 34 denotes a trigger button for video recording, and 35 denotes This is a still shutter button that can be used when shooting a silver salt alone or when shooting a movie and a silver salt still simultaneously.

On the side opposite to the operation member, a program exposure mode, a portrait mode with many open apertures, a shutter speed priority sports mode, a backlight mode, and the like can be selected in common for both moving image shooting and still image shooting. A mode selection dial 36 is provided.

The photometry is feedback-controlled in accordance with the brightness signal level of the solid-state image pickup device 13 corresponding to the various modes. In this embodiment, the video image pickup element is electrically divided into areas and also serves as a photometric element, but a dedicated photometric element may be arranged separately.

Reference numeral 37 is a video tape cassette housing portion arranged on the right side of the lens unit 2. In this embodiment, a video tape having a tape width of 8 mm is used as a video recording medium. The cassette housing portion 37 has a recording mechanism including a magnetic head cylinder, a capstan, a pinch roller, etc., and a control panel 38 for controlling recording / reproduction of a video tape on its upper surface, and an automatic mounting operation instruction. The eject button 39 and the like are arranged.

FIG. 3 is a block diagram for explaining the system control configuration of this embodiment. It is roughly classified into a camera microcomputer 40 for receiving and controlling operation inputs such as zoom, exposure, and AF, release of the camera body, film feeding, and the like. A mode microcomputer 41 for controlling the mode setting and a mechanical microcomputer 42 for driving and controlling the tape recording / playback video camera as the core, and other operation switch units 143, operation switch units 2
44, video camera recording / reproducing mechanism 45, silver salt film detection unit 46, silver salt still camera release switch unit 47 having a shutter button for stills that can be used for simultaneous shooting of moving images and silver salt stills, trigger for shooting video moving images A video camera trigger unit 48 and the like in which buttons are arranged are connected to these.

Next, the operation of the above configuration will be described.
The operation switch unit 1/243/44, the video camera mechanical information, the silver salt film mounting information, and the magnetic tape mounting information are collected in the mode microcomputer 41 directly or by communication between the microcomputers. The mode microcomputer 41 has a silver salt still camera mode determination means and a video camera mode determination means, and determines each mode and operation.

FIG. 4 shows a part of a mode discrimination flowchart when the film is loaded by the mode microcomputer 41. In step S1, when the silver salt film mounting detection is performed based on the information of the silver salt film detection unit, the mode microcomputer 41 determines the operation mode of the silver salt still camera unit as follows according to the state of the video camera.

That is, in step S2, when the video camera is in the recording mode, the silver salt still camera enters the silver salt still camera film auto-loading standby mode in step S3, and in step S4, the video camera mechanism makes mechanical transition. Medium (Pinch roller ON / OF
During F operation, tape running ON → OFF, OFF → ON, forward direction ← → reverse direction control, magnetic head cylinder motor ON
→ OFF, OFF → ON control, etc.), the silver salt still camera similarly enters the silver salt still camera film auto-loading standby mode in step S3. Step S
In 5, when the video camera is in a mode other than the above modes,
In step S6, the silver salt still camera film autoloading mode is entered, and in step S7, the autoloading ends.

When the operation mode is determined, the mode microcomputer 41 sends information to a buzzer, a liquid crystal element, an infrared light emitting element, a viewfinder display section in the electronic viewfinder unit, etc., for each section control or directly through communication between the microcomputers. .

During the film auto-loading of the silver halide still camera, the film auto-loading is temporarily stopped when the video camera recording start switch or other operation switch determines the video camera recording or the mechanical transition of the video camera mechanism. And put it in a standby state. Of course, this standby state has means for returning to the previous film autoloading when the video camera shifts to a mode other than the above.

Although the film auto-loading operation judgment at the time of mounting the film has been described here, this judgment is applied to the film feeding operation after the shutter operation, the film rewinding operation, the film auto-rewinding operation and the like. it can.

FIG. 5 shows a part of the mode discrimination flowchart by the mode microcomputer 41 when the magnetic tape is loaded. In step S11, when the magnetic tape mounting detection is performed based on the information of the magnetic tape detection unit, the mode microcomputer 41 determines the operation mode of the video camera unit according to the state of the silver halide still camera as follows.

That is, in step S12, when the silver salt still camera shutter operation is in progress, the video camera magnetic tape auto-loading standby mode in step S13 is entered, and in step S14, the silver salt still camera film feeding mode, Similarly, step S1
3 Video camera magnetic tape auto loading standby mode is entered. If the silver salt still camera is not in any of the above modes, the video camera magnetic tape loading mode is entered in step S15, and the auto loading is terminated in step S16.

When the operation mode is determined, the mode microcomputer 41 sends information to the buzzer, LCD, LED, finder display section in the electronic viewfinder unit or the like to control each section or externally by direct or inter-microcomputer communication.

When the video camera is loading the magnetic tape and the silver salt still camera release switch or other operation switch determines that the silver salt still camera is photographing and the silver salt still camera film is fed, the temporary magnetic tape loading is performed. Stop and put in standby. Of course, this standby state has means for returning to the previous magnetic tape loading when the silver halide still camera has changed to a mode other than the above.

Here, the judgment of the magnetic tape loading operation at the time of mounting the magnetic tape has been described, but this judgment can be applied to the video tape driving such as the video camera recording start, recording temporary stop, and recording check operation.

[0052]

As described above, according to the present invention,
The following effects can be obtained: Since the driving sound of the silver salt camera does not affect the audio recording of the video camera, it is possible to provide a device capable of shooting the silver salt camera and capable of shooting good video. The system can be made even with a single power supply.
A low-cost device can be provided.

3. In addition, the operation of each of the video camera and the silver salt still camera can be automated to improve operability. 4. Since it is possible to prevent camera shake caused by vibrations of the video camera and the silver salt still camera, it is possible to provide a device capable of taking good pictures. When the tape drive operation is put on standby by the operation mode determination means, it is possible to improve the operability by displaying a message.

[Brief description of drawings]

FIG. 1 is a left side view showing a configuration of an embodiment.

FIG. 2 is a top view of FIG.

FIG. 3 is a block diagram of the system configuration of the embodiment.

FIG. 4 is a flow discrimination flowchart of the system shown in FIG. 3 (No. 1)

FIG. 5 is a flowchart of the system flow determination (part 2).

[Explanation of symbols]

 1 Camera body exterior 2 Lens unit 4 Silver salt iris diaphragm 5 Film 7 Semi-transparent thin film mirror 10 Reduction lens unit 11 Video diaphragm unit 13 CCD 17 Back cover unit 18 Electronic viewfinder 23 Battery 37 Video tape compartment 40 Camera microcomputer 41 Mode microcomputer 42 Mechanical microcomputer 43 Operation switch unit 1 44 Operation switch unit 2 45 Video camera mechanism 46 Silver salt film detection unit 47 Silver salt still camera release switch unit 48 Video camera trigger unit

Claims (11)

[Claims] 1. A film for the still camera section, comprising: a still camera section for photographing the scene and recording a still image thereof; and a video camera section for photographing the scene and recording a moving image thereof. Film detecting means for detecting mounting, film driving means for driving the film, still camera mode discriminating means for determining the operation of the still camera section based on external and internal information, and the video camera section based on external and internal information. And a video camera mode discriminating means for deciding the operation of the video camera section, wherein the film driving operation is put on standby when the video camera section operating mode discriminating means detects the video camera section recording mode. And compound camera. 2. The compound camera according to claim 1, wherein the film driving operation is put on standby when the video camera operation mode discrimination means detects that the video camera mechanical transition is in progress. 3. The compound camera according to claim 1, wherein when the film drive operation is in a standby state, the video camera operation mode determination means detects a mode other than the video camera operation recording mode and mechanical transition. A compound camera, wherein the film driving operation is performed again. 4. The compound camera according to claim 1, wherein the film driving unit is a film winding unit that winds the film. 5. The compound camera according to claim 1, wherein the film driving unit is a film rewinding unit that rewinds the film. 6. The composite camera according to claim 1, further comprising display means, wherein the still camera section operation mode determination means displays when the film drive operation is put on standby. . 7. A film of the still camera section, comprising: a still camera section for photographing a scene and recording a still image thereof; and a video camera section for photographing the scene and recording a moving image thereof. A film driving means for driving, a still camera mode discriminating means for deciding the operation of the still camera portion based on external and internal information, a tape detecting means for the video camera portion, a tape driving means for driving the tape, an external and A composite camera having a video camera mode determination means for determining the operation of the video camera portion based on internal information, wherein the tape drive operation is performed when the still camera portion operation mode determination means detects that the still camera portion shutter is operating. A compound camera characterized in that it is configured to wait. 8. The compound camera according to claim 7, wherein when the still camera section operation mode determination means detects a still camera section feeding mode, the tape drive operation is put on standby. 9. The compound camera according to claim 7, wherein when the tape drive operation is in a standby state, when the still camera section operation mode determination means detects a mode other than a still camera section shutter operation and a feeding mode, the operation is performed again. A compound camera characterized by tape drive operation. 10. The compound camera according to claim 7,
The composite camera, wherein the tape driving means includes mechanical driving of the video camera. 11. The compound camera according to claim 7,
A composite camera, wherein display means is provided, and when the tape drive operation is put on standby by the video camera operation mode determination means, a display is performed.