JPH0721608B2 - Video camera with still camera - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a video camera with a still camera, and more particularly to a movie video camera equipped with a still camera using, for example, a silver halide photographic film.

2. Description of the Related Art There has been a demand for recording a specific scene in a still picture while shooting with a television camera having a video tape recording function, that is, a video camera. conventionally,
For example, if I carry both a silver salt still camera and a video camera and there is a scene that I want to shoot while shooting with the video camera, I stopped shooting with the video camera and shot with the still camera. In such a situation, it is necessary to carry two devices around, and it is necessary to interrupt shooting with a video camera, and there is a risk of missing important shooting opportunities. There was a problem.

Therefore, in order to solve such a problem, the still camera and the video camera are combined into one device, and the still camera is operated to operate the still camera without interrupting the shooting with the video camera. A video camera would be required.

In such a video camera with a still camera, considering the convenience of carrying, the still camera section is also formed into a shape having no irregularities relative to the overall shape of the video camera, and both the still camera section and the video camera section are Proper operation with both hands or one hand is required.

When the still camera unit and the video camera unit are put together in such a shape, it is necessary to arrange a part of the video camera unit behind the still camera unit. However, when loading the film of the still camera unit, it is necessary to open and close the back plate of the still camera unit. Therefore, the space required to open and close the back plate must be provided at the rear of the still camera unit and the video camera unit must be arranged at the rear of the still camera unit.

It is an object of the present invention to solve the above problems and provide a video camera with a still camera that is convenient to carry, has good operability, and is compact.

DISCLOSURE OF THE INVENTION A video camera with a still camera according to the present invention includes a casing having a substantially rectangular parallelepiped shape as a whole, an imaging optical system for a still camera which is opened in the front surface of the casing to face the same field, and an imaging for a video camera. Optical system,
A still camera unit is installed inside the casing in the vicinity of the image pickup optical system for the still camera, and captures the field and records the still image on a film. And a video camera unit for recording the moving image on a video tape, and the image pickup optical system for the still camera and the still camera unit are housed in a still camera case forming a part of the casing and used for the still camera. The case is provided with a back plate that covers the rear surface of the case for the still camera and one of the upper surface and the lower surface of the case for the still camera, and covers the opening for loading the film by drop-in loading and the opening. A lid part, the end part of which is supported by the casing and is rotatable with respect to the casing so that the opening is exposed, and the end part of the back plate is the casing for a still camera. Is connected to the body is opened and closed,
The lid portion has a movement transmitting means for causing the back plate to move less than the movement due to the rotation of the lid portion, and when the opening is exposed by the rotation of the lid portion, the back plate is moved by the movement transmitting means to be larger than the lid portion. It is released with a small amount of movement.

In the present specification, the term “video camera with a still camera” means that the still camera unit is integrated into the video camera unit, both are separable, or if they are separable, each can be used as a single unit. Regardless of whether or not it is interpreted in a broad sense, it includes a photographing device having both a still camera function and a video camera function.

Description of Embodiments Embodiments of a video camera with a still camera according to the present invention will be described in detail with reference to the accompanying drawings.

Referring to FIG. 1, there is shown an embodiment in which the present invention is applied to a so-called 8 mm video camera, which is basically a casing 10 having a substantially rectangular parallelepiped shape as a whole.
And the function of the video camera and the function of the still camera are accommodated therein. Video cameras have tape widths
This is a movie video camera which uses an 8 mm video tape 100 (Fig. 5) as a video recording medium, captures an image of a field, and records the moving image in the form of a video signal together with audio on the video tape 100. In the present embodiment, the still camera is a so-called 135 type silver salt still camera, which uses a 35 mm film 102 (FIG. 5) as a video recording medium, and a still image of the 35 mm film 102 (FIG. 5) as a latent image on the silver salt film 102. Still camera to record as.

Two imaging lenses 14 and 16 are provided on a front surface 12 of the casing 10 which is substantially rectangular as a whole. Imaging lens
Reference numeral 14 constitutes an image pickup optical system of a video camera, and reference numeral 16 constitutes an image pickup optical system of a still camera. Near the image pickup lens 14 of the video camera, a strobe light emitter for still shooting is used.
18, an automatic distance measuring (AF) light emitting element 20, and an objective lens 24 of an optical finder 22 (FIG. 4) are arranged as shown. Optical viewfinder 22 eyepiece or eyecup
42 is disposed on the rear surface of the casing 10. These two
The two imaging lenses 14 and 16 are arranged so as to face the same field, and the objective lens 24 of the optical viewfinder 22 also faces the same field. As a result, the still camera function unit and the video camera function unit in this apparatus can photograph the same scene. Needless to say, an electronic viewfinder may be used instead of the optical viewfinder.

One side surface of the casing 10, that is, the first side in this embodiment.
On the left side surface in the figure, a microphone 58 for collecting a sound from the scene is attached. It is advantageously used that has unidirectional sensitivity.

As shown in the drawing, a light receiving sensor 26 for automatic distance measurement is arranged near the image pickup lens 16 of the still camera. casing
Reference numeral 10 forms a housing 28, which includes a front surface 12 and is partially independent, and inside the housing 28, an imaging lens of a still camera is provided.
16, an imaging optical system including an aperture 104 and an optical shutter 106 (FIG. 5), an AF sensor 26, a film feeding mechanism 108, and a part of an exposure control circuit 110 and a focusing mechanism 112 (see FIG. 5).
Various mechanisms necessary for the image pickup of the still camera, such as the drawing), are provided. As a result, the captured subject image is recorded on the film 102.

As shown in FIGS. 1 and 2, an opening 94 having a substantially fan shape is provided on the upper surface of the still camera function part of the housing 28, and a thin plate-like lid member 80 having substantially the same shape as the opening 94 is provided. Case 28
Is provided inside the upper surface of the. The lid member 80 is a hinge 30.
A protrusion 85 is connected to the casing 10 so as to be rotatable in the direction of the arrow 82 with the axis as a pivot, and is rotatable. The lid member 80 is sized and shaped such that its substantially fan-shaped circumferential portion can cover the cartridge chamber 37 in which the film 102 is loaded. Further, the opening 94 is provided with the projection 8 of the lid member 80 when the lid member 80 is rotated in the direction of the arrow 82a.
It has a notch 96 for accommodating 5.

As shown in FIG. 3, the lid member 80 is provided with a convex portion 84 along the end portion on the video tape cassette housing portion 34 side, and a predetermined interval is provided from the convex portion 84 on the fan-shaped circumferential portion. Thus, a convex portion 86 is provided from the center of the fan shape toward the circumference.

The back plate 88 covering the rear part of the still camera case 28 has a pressure plate.
90 is supported by a spring 92. The back plate 88 is a lid member
Similar to 80, the hinge 30 is pivotally provided around the hinge 30 in the direction of arrow 82, and the upper end portion 88a thereof is disposed between the convex portions 84 and 86. Therefore, when the lid member 80 is rotated in the direction of the arrow 82a by the operator, the back plate 88 has the convex portion 86.
It is pressed and rotated by. Therefore, the back plate 88 does not rotate for a while after the lid member 80 starts to rotate, and the back plate 88 rotates after the lid member 80 has rotated to the position where the convex portion 86 contacts the back plate 88. Moves by being pressed by the convex portion 86. Therefore, when the lid member 80 is rotated to open the cartridge chamber 37 and the gap 44 is formed between the housing 28 and the lid member 80 as shown in FIG. In comparison, the amount of movement to rotate is small. Therefore, the space for opening and closing the back plate 88 provided in the rear portion of the housing 28 for moving the back plate 88 may be small.

When the lid member 80 is rotated in the direction of the arrow 82b by the operator, the back plate 88 is pressed by the convex portion 84 and rotated.
For this reason, the back plate 88 does not rotate for a while after the lid member 80 starts to rotate, and after the lid member 80 has rotated to the position where the convex portion 84 contacts the back plate 88, the back plate 88 is rotated. Is moved by being pushed by the convex portion 84, and when the lid member 80 returns to the position shown in FIG. 1, the back plate 88 is brought into close contact with the rear surface of the housing 28 to be closed.

The film 102 is loaded into the still camera portion by drop-in loading through an opening formed by rotating the lid member 80 as shown in FIG.

Drop-in loading is described in, for example, Japanese Patent Laid-Open No. Sho 58-68731.
It is described in. In this embodiment, with the lid member 80 open to the position shown in FIG.
Put the film cartridge 36 in the cartridge chamber 37 of the housing 28,
By inserting the leader 102a of the 135-type film 102, which is pulled out from the cartridge 36 by a slight length, into the vertical gap 44 formed between the lid member 80 and the rear portion of the housing 28, respectively. This can be easily performed by accommodating the cartridge 36 in the cartridge chamber 37 and then securely closing the housing 28 to the original closed position.

An upper surface 32 of the casing 10 having a rectangular shape as a whole has a cassette storage portion 34 opened in a part thereof as illustrated. The cassette housing 34 is provided with a switch button for attaching / detaching the 8 mm video tape cassette 46, that is, an inject button for instructing an automatic loading operation of the cassette 46 on the operation display 114 (FIG. 5) of the apparatus. When operated, the motor drives to move up and down to form an opening for loading the cassette 46. As shown in FIG. 2, when the storage section 34 is raised, the 8 mm video tape cassette 46 can be inserted into or removed from the storage section 34.
The cassette 46 is inserted from the direction of the arrow 48, and the cassette 46 is detachably loaded by lowering the storage portion 34 to the original position.

A shutter release button 50 of the still camera is arranged on the upper surface 32 of the casing 10 as shown in the figure, and a record button 52 of the video camera is arranged on the lower surface of the casing 10 at a position corresponding to the shutter release button 50. . Operator, casing
The device can be held between the upper surface 32 and the lower surface of 10 with the fingers of both hands, and the shutter release button 50 can be operated with the index finger of the right hand, and the recording button 52 can be operated with the thumb.

In FIG. 1, for example, a secondary battery is removably loaded as a power source of the present device at a position indicated by a dotted line 54 of the casing 10. The battery 54 can be loaded from the direction of the arrow 56 shown in FIG. 2 by opening the cover of the battery housing portion on the side surface of the casing 10.

Referring to FIG. 5, there is shown an example of the internal configuration of the video camera with a switch camera of the embodiment shown in FIG.
The image pickup optical system of the video camera has an image pickup lens 14 and an optical path from a subject incident from the image pickup lens 14 behind the image pickup lens 14.
A solid-state imaging device 118 such as a CCD (charge-coupled device) that converts an optical image of an object captured by the diaphragm 116 and the imaging lens 14 from an optical signal into a video signal is arranged on the 140.

The imaging lens 14 may have a solid focus, but in the present embodiment, the focus position is controlled by the automatic focusing (AF) mechanism 112 by a distance measurement signal from the system control circuit 144. Aperture 116
Also, an automatic exposure adjustment (EE) mechanism in which the exposure control circuit 110 adjusts to an appropriate exposure according to the photometric signal obtained from the system control circuit 144 is advantageously applied. Imaging device
The image pickup device 118 is driven by the image pickup circuit 120.
The video signal obtained by the above is sent to the video circuit 122 through the imaging circuit 120.

The image pickup circuit 120 clock-drives the image pickup device 118, amplifies a video signal output from the image pickup device 118, and performs necessary correction such as white balance adjustment, and a standard color television including a luminance signal, a color difference signal, and a synchronization signal. A decoded video signal of the John format is formed. The decoded video signal is input to the video circuit 122, and is subjected to pre-emphasis that emphasizes high frequency components, clamp that fixes it to a predetermined level, and FM modulation that converts it into a recording signal suitable for recording on the video tape 100. Input to mixer 126.

On the other hand, the sound captured by the microphone 58 is converted into an audio signal by the audio circuit 124, and the audio circuit 124 performs amplification, automatic gain adjustment, FM modulation for converting into a recording signal suitable for recording on the video tape 100, and the like. Input to mixer 126.

The recording signals of the composite video signal and the audio signal are mixed by the mixer 126, amplified by the recording circuit 128, and then 1
It is supplied to the pair of magnetic heads 130a and 130b. The magnetic heads 130a and 130b are carried by the head cylinder 200 (FIG. 4) so that the azimuth angles are different from each other, and are steadily rotated at a predetermined rotation speed by the head cylinder drive mechanism 132. The video tape 100 is sandwiched between a capstan 136 driven by a tape feeding circuit 134 and a pinch roller 138 and runs in a predetermined direction. Thus, the magnetic head 130a and
The composite video signal and audio signal supplied to 130b are recorded on the video tape 100.

The optical system of the still camera has an image pickup lens 16, and an optical path 142 from the subject incident from the image pickup lens 16 is behind it.
The film 10 through the aperture 104 and the optical shutter 106.
2 is placed. The imaging lens 16 may have a fixed focus, but in this embodiment, the focus position is controlled by the focusing mechanism 112. The diaphragm 104 and the optical shutter 106 are also advantageously applied with the automatic exposure adjustment function of the exposure control circuit 110.

The film 102 is loaded, wound and rewound automatically by the film feeding mechanism 108 in response to an instruction signal from the system control circuit 144.

The system control circuit 144 is a control circuit that controls each unit of the present apparatus, and controls the tape feeding circuit 134 in response to the operation of the recording button 52 of the operation display unit 114, and controls the feeding of the video tape 100, for example. To do. Further, for example, in response to the operation of the shutter release button 50, the exposure control circuit 110, the focusing mechanism 112 and the strobe light emission circuit 146 are controlled.

The apparatus is provided with an automatic exposure (EE) sensor 148, which measures the brightness of the field and provides the system control circuit 144 with data indicative of the measurement. The system control circuit 144 is
The exposure control circuit 110 and the stroboscopic light emission circuit 146 are controlled according to the brightness data of the object field input from the EE sensor 148. In response to this, the exposure control circuit 110 adjusts the aperture of the aperture 116 of the video camera and controls the aperture of the aperture 104 of the still camera and the opening time of the shutter 106. The strobe light emission circuit 146 controls the light emission time of the strobe light emitter 18.

The automatic focusing (AF) light emitting element 20 is connected to the system control circuit 144 via the AF light emitting circuit 150. In response to an instruction from the system control circuit 144, the AF light emitting circuit 150 drives the AF light emitting element 20 to emit, for example, infrared light toward the subject, and a portion of the infrared light reflected from the subject is detected by the AF sensor 26. The distance between the device and the subject is automatically measured by the detection. AF data from the AF sensor 26 to the system control circuit 14
Input to 4.

This distance measurement is based on the principle of the triangulation method, but in this device, as can be seen from FIG. 1, the AF light emitting element 20 and the AF sensor 26
Since the distance between and, that is, the base line has a sufficient length, accurate distance measurement can be performed. The system control circuit 144 controls the focusing mechanism 112 according to the data of the distance between the device and the subject, which is input from the AF sensor 26, and the focus of the two imaging lenses 14 and 16 is adjusted by this.

The device is also provided with a white balance sensor 152. This detects the color component of the incident light from the object field and supplies the data to the system control circuit 144. The system control circuit 144 sets the parameters of the white balance adjustment circuit of the image pickup circuit 120 based on this data.

The operation display unit 114 gives a manual instruction to the device,
In addition, it is a functional part that displays the state of the device to the operator visually or audibly. Not only the shutter release button 50 and the record button 52, but also automatic / manual switching of focus, exposure and white balance adjustment, video camera fader, wiper, etc. And setting buttons for inserting titles, operation buttons for recording, rewinding, and reviewing the videotape recording mechanism 74 (Fig. 4), flash camera operation buttons for still cameras, operation mode display, tape counter, tape end warning display, film It has various operation buttons and display elements such as a counter and power consumption warning display.

Referring now to FIG. 4, there is shown a schematic view of the inside of the apparatus with the casing 10 removed in the state shown in FIG. Inside the casing 28 of the casing 10, the functional unit 76 of the still camera is mainly mounted. For example, a lens unit 60 in which an image pickup optical system including an image pickup lens 16 of a still camera and an AF sensor 26 are integrally incorporated.
And the electronic circuit boards 62 and 64 on which the parts relating to the still camera function, such as the exposure control circuit 110, the focusing mechanism 112, the automatic photometry and distance measurement circuit, the AF light emission circuit 150, and the flash light emission circuit 146, are mounted. It is installed in.

Imaging optical system unit including the imaging lens 14 of the video camera
Behind 66, the solid-state imaging device 118 has an electronic circuit board 68.
And is arranged as shown in the drawing, and the exposure control circuit 110, focusing mechanism 112, automatic photometry and distance measuring circuit, and other parts related to the video camera function are also mounted on the same.
Further behind it, electronic circuit boards 70 and 72 on which a video circuit 120 and an audio circuit 124 are mounted are arranged, and a battery 54 is stored under the electronic circuit boards 70 and 72.

As shown in the figure, a video tape recording mechanism 74 including a video tape cassette storage section 34, a magnetic head cylinder 200, a cap stun 136, a pinch roller 138, etc. is disposed behind the still camera section 76, and below the cylinder. A head cylinder drive mechanism 132 including a motor, a mixer 126,
An electronic circuit board 78 on which a recording circuit 128, a tape feeding circuit 134, a system control circuit 144, etc. are mounted is arranged. The optical viewfinder 22 is arranged between the electronic circuit board 70 and the video tape recording mechanism 74 as shown.

As described above, in this embodiment, the imaging lenses 14 and 16 are opened in the front surface 12 of the casing 10, and the imaging lens of the still camera is used.
A still camera function unit 76 is provided in the vicinity of 16, and a circuit and a mechanism necessary for shooting with the video camera are arranged behind the image pickup lens 14 of the video camera. The video tape recording mechanism and circuits related thereto are provided in the still camera unit. It is located behind. Therefore, it is possible to shoot a moving image with a video camera and a still image with a still camera at the same time and without any trouble.

Further, both the attachment / detachment of the video tape cassette 46 and the drop-in loading of the film 102 can be performed from the upper surface 32 of the casing 10. Particularly, when the film 102 is loaded by drop-in loading, the lid member 80 is rotated with respect to the casing 10, and the back plate 88 of the housing 28 is rotated by the convex portion 86 provided on the lid member 80, and the cartridge is rotated. Chamber 37
This is done by exposing the opening. Therefore, the movement amount of the back plate 88 is smaller than the movement amount of the lid member 80. As a result, the space provided behind the housing 28 for rotating the back plate 88 can be reduced, so that the entire apparatus can be made into a compact shape.

The interval between the convex portions 84 and 86 provided on the lid member 80 should be adjusted in consideration of the required opening / closing amount of the lid member 80 and the space that can be provided at the rear portion of the back plate 88 for opening / closing the back plate 88. Good. Further, instead of the convex portions 84 and 86, two projections provided on the lid member 80 may be used. Furthermore, the lid member
The shape of 80 is not limited to the fan shape, and may be any shape that can cover the opening when the film 102 is loaded.

In each of the above-described embodiments, the still camera function section uses a silver salt film, but it may be an instant still picture method or an electronic still camera method for recording a video signal on a magnetic disk.

Effect The video camera with a still camera according to the present invention has a still camera unit and a video camera unit housed in a casing, and the still camera unit and the video camera unit can photograph the same object scene.

In addition, the lid that is rotated when the film is loaded in the still camera has two convex portions in the rotation direction, and these rotate the back plate of the casing of the still camera. And the amount of movement of the back plate is small when the back plate is opened. Therefore, the space provided behind the housing of the still camera unit for opening the back plate can be reduced, and the entire apparatus can be made compact.

[Brief description of drawings]

FIG. 1 is a perspective view showing the appearance of an embodiment of a video camera with a still camera according to the present invention, and FIG. 2 is an appearance perspective view for explaining the film loading state of the embodiment shown in FIG. 2 is a perspective view showing a part of the apparatus of FIG. 2, FIG. 4 is a perspective view showing the outline of the internal structure of the camera of FIG. 1, and FIG. 5 is an example of the internal configuration of the camera of FIG. It is a functional block diagram. Description of main part symbols 10 …… Casing 12 …… Front face 14,16 …… Imaging lens 18 …… Strobe light emitter 20 …… AF light emitting element 22 …… Optical viewfinder 26 …… AF sensor 28 …… Housing 32 ...... Top 34 …… Cassette compartment 37 …… Patrone room 50 …… Shutter release button 52 …… Record button 58 …… Microphone 74 …… Video tape recording mechanism 76 …… Still camera function 80 …… Lid member 84, 86 …… Convex part 88 …… Back plate 90 …… Pressure plate

Claims (4)

[Claims] 1. A casing having a substantially rectangular parallelepiped shape as a whole, an imaging optical system for a still camera and an imaging optical system for a video camera, which are opened on the front surface of the casing so as to face the same field, and A still camera unit disposed inside the still image pickup optical system for capturing the field and recording a still image of the field on a film; And a video camera unit for recording the moving image on a video tape, wherein the still camera image pickup optical system and the still camera unit are housed in a still camera case forming a part of the casing. The still camera housing is provided on a back plate that covers a rear surface of the still camera housing, and is provided on one of an upper surface and a lower surface of the still camera housing. It has an opening for loading by drop-in loading and a lid portion that covers the opening, and the lid portion is supported by the casing at an end thereof and is rotated with respect to the casing so that the opening is exposed. An end portion of the back plate is connected to the still camera housing body so that the back plate can be opened and closed, and the lid portion moves less than the movement of the lid portion due to rotation. A still transmitting device for causing the back plate to be opened by a movement amount smaller than that of the lid portion when the opening is exposed by the rotation of the lid portion. Video camera with camera. 2. The video camera with a still camera according to claim 1, wherein the movement transmission means has two protrusions provided in the rotation direction on a surface of the lid portion on the inner side of the housing. A video camera with a still camera, characterized in that the back plate is partly arranged between the two convex parts. 3. The video camera with a still camera according to claim 2, wherein the lid portion is substantially fan-shaped, and the two convex portions are convex from the central portion of the fan-shaped portion toward the circumferential portion. Video camera with a still camera, which is characterized by being a part. 4. A video camera with a still camera according to any one of claims 1 to 3,
The video camera unit is provided behind the image pickup optical system for the video camera, and a video circuit unit that images the field to form a video signal representing a moving image thereof; and the still inside the casing. A video tape recording unit that is disposed behind the camera unit and records the video signal on a video tape, and between the still camera unit and the video tape recording unit,
A video camera with a still camera, wherein a gap is provided according to the amount of movement of the back plate.