JPH06178179A - Electronic still camera - Google Patents

Abstract

PURPOSE:To perform recording and reproduction satisfactorily without generating the rotational nonuniformity of a VF by an operation while recording and reproducing operations are being performed. CONSTITUTION:A power source switch 1 switches the function of a camera 1 to modes of recording, reproduction, and power source dis-connection, and a two-stage SW2 of a release SW performs distance measurement, lens driving, and the start and stabilization of disk rotation of a disk drive in a first stroke, and performs the recording and photography in a second stroke. The VF on which video signals formed in an optical system and a signal processing system incorporated in a camera main body and not shown in figure are recorded is formed so as to constitute the disk and a hub integrally in the inside, and when the VF is loaded on the camera main body, a shutter is slided, and the recording of the video signal on the disk and the reproduction of the video signal from the disk are performed. An eject lever 3 opens a disk drive cover 10 by performing such operation. A holder 19 is provided on the disk drive cover 10 integrally, and after the VF is inserted to the holder 19 in a state where the cover 10 is opened, the VF is loaded on a disk drive device when it is closed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic still camera for recording an image on a video floppy (hereinafter referred to as VF) as an electric signal.

[0002]

2. Description of the Related Art Conventionally, an electronic still camera is constructed as shown in FIG. In the figure, 1 is a power switch (hereinafter,
The switch is represented by SW) to record and reproduce the functions of the camera.
The power can be switched off. 2 is a release SW and 2 steps S
The distance W is set to W, and the first stroke performs distance measurement, lens drive, and disk rotation of the disk drive is started and stabilized, and recording (imaging) is performed in the second stroke. 12
Is a VF for recording a video signal formed by an optical system and a signal processing system (not shown) built in the camera body.
It is possible to record up to 50 images on one image.

As shown in FIG. 4, inside the VF12,
The disk 12c coated with magnetic powder is the center hub 12.
When the VF 12 is inserted into the camera body, the shutter 12b slides in the direction of arrow A, and the disc becomes visible, and the head 18 accesses the disc and the image to the disc is formed. Recording of signals and reproduction of video signals from the disc are performed. Reference numeral 3 is an eject lever, and this operation opens the disc drive lid 10. A holder 19 is integrally provided on the disk drive lid 10. The VF 12 is inserted by inserting the VF into the holder 19 with the lid 10 open and then closing the lid 10.
Is installed in the disk drive device.

Although the photographing optical system of this conventional example is a zoom optical system (not shown), the focal length can be continuously switched, but the buttons 4 and 5 are the operation buttons, and the button 4 is To the wide-angle side, 5 is a button for switching the taking lens to the telephoto side. At this time, the view field range of the finder 11 showing the shooting range is also switched in accordance with zooming. Reference numeral 6 denotes a strobe SW for setting a light emission mode of a built-in strobe (not shown). 7 '
Is an exposure compensation button, and when the subject is backlit, the exposure compensation is set to the over side by operating it, and good shooting is possible even for a backlit subject. Exposure compensation button 7 '
Is set so that when the second stroke of the release switch SW2 is pressed in the pressed state, the exposure correction is performed for the shooting at that time.

Numerals 8 and 9 are track feed buttons, which are VF1.
It is possible to select at which position in 2 the video is recorded or at which position the video is reproduced. Reference numeral 8 is a forward feed track feed button, and 9 is a reverse feed track feed button. Reference numeral 13 denotes a liquid crystal device which indicates a use state of the camera, and displays a track for recording or reproduction, a strobe setting mode, and the like.

[0006]

In the structure of the above-mentioned conventional example, among the buttons 4, 5, 6, 7'provided on the disk drive lid 10, the zoom switching buttons 4, 5 are selected.
The strobe switch 6 is set to finish each setting before photographing, and then press the release SW 2 to perform photographing. Therefore, after the first stroke of the release SW2 is turned on, that is, after the rotation of the disc is stabilized,
The operation of these switches is ignored by the CPU that reads them.

As described above, the buttons 4, 5 and 6 are not operated during the operation of the release SW2, that is, during the recording operation, but the exposure correction button 7'is released while pressing the exposure correction button 7'as described above. When SW2 is operated, it fulfills its function. For this reason,
When the exposure compensation button 7'is pressed hard, the operating force is transmitted to the VF 12 via the disk drive lid 10 and the V
It may deform F12. As a result, the load of disk rotation fluctuates, and the disk rotation that was stable is uneven, and good recording may not be performed. As described above, when the button on the disc drive lid 10 is operated while the disc is rotating, there is a problem that the disc becomes uneven in rotation and recording and reproduction become defective.

The present invention has been made in order to solve such a conventional problem, and provides an electronic still camera capable of stably rotating the VF without deforming the VF by applying an unnecessary force. The purpose is to provide.

[0009]

In order to achieve the above object, an electronic still camera according to the present invention is provided with an operating member for operating the electronic still camera on a lid, and the operating member is the flat plate-shaped rotary member. During rotation of the body, it is composed of only members that are not required to operate.

[0010]

According to the present invention, the operation member provided on the disk drive lid is composed of only the one that is not used when the disk rotates, so that the unevenness of rotation of the VF due to the force applied for the operation is recorded and reproduced. Therefore, good recording and reproduction are always possible.

[0011]

1 is a perspective view showing an embodiment of the present invention. In FIG. 1, except for the exposure compensation button 7, 1-1
Since all 3 are the same as those described in the conventional example, detailed description will be omitted.

The exposure compensation button 7 has the same function and operation as the exposure compensation button 7'described in the conventional example, but its position is not on the disc drive lid 10 but on the outer side surface. When the camera is held, it is located so that it can be operated with the thumb of the left hand.

Therefore, the buttons provided on the disk drive lid 10 are only the zoom switching buttons 4 and 5 and the strobe switch 6, and when the release SW 2 is operated, only those buttons are not operated.

Next, FIG. 2 shows another embodiment of the present invention. In this embodiment, the configuration and operation of the camera body are the same as those shown in FIG.
This is the same as that described in the conventional example shown in FIG. 3, and the position of the exposure correction button 7'is also the same as in FIG. Therefore, FIG.
Since the external appearance is completely the same as that of the conventional example shown in FIG.

FIG. 2 is a view showing the visual field information inside the finder 11, and 14 is a range-finding range frame showing a range of range-finding.
Reference numeral 5 is a short-distance visual field correction mark that represents a photographing range when the subject is at a short distance. Reference numeral 16 denotes an in-focus indication LED, which is lit after the distance measurement of the object is completed by the first stroke of the release SW, the lens can be driven normally, and the rotation of the disk is stabilized, and the second stroke of the release SW is on standby. It is an LED indicating that the state has been reached. Reference numeral 17 denotes an LED indicating the state of exposure compensation, which is repeatedly turned on and off in accordance with the operation of the exposure compensation button 7 '.

Therefore, the operation of the user at the time of photographing is as follows. First, by checking the brightness of the surroundings, the operation mode of the strobe is set by the strobe switch 6. At this time, the strobe setting mode is performed while looking at the liquid crystal display device 13.

Next, the user looks into the finder 11 and performs zooming with the zoom buttons 4 and 5 to adjust the angle of view to an appropriate state and frame the subject. At this time, if it is necessary to correct the exposure, such as when the subject is backlit, the exposure correction button 7'is used to set the exposure correction, and the LED 17 in the finder 11 confirms that the exposure correction has been set.

When the first stroke of the release SW is pressed in this state, a distance measuring device (not shown) measures the distance to the subject, and accordingly an optical system (not shown) is driven, and the disc drive drives the disc. The rotation is started and stabilized, and the focus display LED 16 is turned on to indicate that it is in the standby state for the second stroke. Second release SW in this state
When the stroke is operated, a signal processing circuit (not shown) is activated, a video signal is formed, and recording in the VF 12 is performed.

As described above, also in the case of this embodiment, the button 4 is pressed when the second stroke of the release SW is operated.
All the operations 5, 6, and 7'are completed, and the buttons on the disk drive lid 10 are no longer operated while the disk drive is rotating.

[0020]

As described above, according to the present invention, the operation buttons of the disk drive lid are limited to those which are not used during the rotation of the disk drive, or the operation buttons are set so as not to be used. As a result, it is possible to prevent a force exerting a bad influence on the stable rotation of the VF disc of the disc drive from being exerted on the VF, so that good recording and reproducing are always performed.

In the embodiment of the present invention, only the recording operation of the camera is given as an example, but it goes without saying that the same effect can be obtained during the reproducing operation.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a diagram showing view field information inside a finder according to another embodiment of the present invention.

FIG. 3 is a perspective view of a conventional electronic still camera and a second embodiment of the present invention, and a perspective view of a VF.

FIG. 4 is a cross-sectional view of a conventional electronic still camera.

[Explanation of symbols]

 1 Power SW 2 Release SW 3 Eject Lever 4, 5 Zoom Switch Button 6 Strobe SW 7, 7'Exposure Compensation Button 8, 9 Track Forward Button 10 Disc Drive Lid 11 Finder 12 VF 12c Disc 13 Liquid Crystal Display Device 14 Distance Measuring Range Frame 15 Near field correction mark 16 Focus display LED 17 Exposure correction display LED 18 Head 19 Holder

Claims (1)

[Claims] 1. An electronic still camera having an openable / closable lid part for inserting and removing a housing containing a flat plate-shaped rotating body coated with a magnetic medium for recording video information,
An electronic still camera, wherein an operation member for operating an electronic still camera is provided on the lid portion, and the operation member is constituted only by a member which is not required to be operated during rotation of the flat plate-shaped rotating body. .