JPS6284674A - Electronic camera - Google Patents

Abstract

PURPOSE:To compact the shape of an overall camera and to improve operability by installing a containing chamber containing a recording medium recording an image pickup signal from an image pickup element and an optical system leading a luminous flux from an object to the image pickup element in parallel. CONSTITUTION:A sheet-like information memory medium handling device 6 is constructed with a housing 7, a rotation spindle 8, a magnetic disk 9 formed with a flexible member and a base material 10. The housing 7 is provided with a recessed part 7a where the rotating spindle 8 is disposed, a slot-like aperture 7b where a magnetic head 11 in the containing chamber enters when the device 6 is loaded in the containing chamber 76 of a camera main body 63, and a positioning hole into which a positioning pin installed in the containing chamber is inserted. An replacement lens is provided with a distance adjustment ring, a diaphragm, etc., all of which are necessary for a normal photographing, and a symbol 62 is formed on a camera main body 63 so that it can engage with the tailing end of the replacement lens. The containing chamber 76 is arranged on the back of the camera so that the chamber 76 can be arranged in parallel with the optical system composed of a translucent mirror 94 and an eye piece 69, viewing from the back of the camera. Accordingly the thickness of the camera can be thinned.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an electronic camera (electronic photographic device), and particularly to the structure of an electronic camera (electronic photographic device).

<Prior Art> Movements such as magnetic recording (recording and reading information on an information storage medium) require relative movement between the recording/reading head and the storage medium.

The relative velocity between the head and the recording medium surface can be approximately 13.97 meters per second, such as in video. To achieve maximum performance, the recording/reading head and the media surface must be in close contact and in contact without destroying or excessively abrading the magnetic field sensitive coating on the recording media. must be done.

Therefore, the conventional method of bringing the recording/reading head into close contact with the medium surface is to increase the contact pressure between the head and the storage medium, but this method is undesirable because it causes severe wear on the medium and the head. This problem is especially serious when the head is in continuous contact with the storage medium for one frame in order to present a still image in a video. That is, for example, if the storage medium is formed of a magnetic disk and this magnetic disk is rotating at 3.60 Or, p, m, then if a still image is presented for 5 minutes, the same The track will be rubbed by the head approximately 18,000 times, and the close contact between the magnetic disk and the head will wear down the track on the magnetic head very quickly, and the information magnetically stored on the track will be lost. Destroyed.

Several methods have been proposed in the past to solve this problem between the head and the disk, one of which is to use a hard flat magnetic disk and a floating head for the magnetic disk, and One method is to bury a head with a large surface inside a soft (and flexible) "floppy" magnetic disk. However, the former method uses a hard material as the substrate forming the magnetic disk. is required, which is usually about 0
．． It is made of 254 μm thick aluminum plated with a magnetically sensitive material such as nickel cobalt and coated with a 0.127 μm rhodium plating for wear protection. Magnetic disks formed in this way are very expensive, and when the disk rotates at full speed, the magnetic head floats on an air cushion to prevent excessive wear. It is necessary to configure The distance between the magnetic head and the magnetic disk is normally required to be between 0.889 and 1.27 μm, but the delicate balance of the force that keeps the magnetic head floating relative to the surface of the magnetic disk is Disturbances can be caused by fine dust particles or fingerprints, which can cause the magnetic head to violently collide with the magnetic disk.

Therefore, magnetic disks of this type cannot be handled without gloves and are usually handled in a special or lean room environment, and usually sealed in an empty container. In order to avoid this collision between the magnetic head and the magnetic disk, head damage can be reduced by increasing the flying height of the magnetic head relative to the magnetic disk, but as the distance increases, performance deteriorates except in low-frequency digital applications. do. As mentioned above, using a hard magnetic disk,
This method of flying a head over a magnetic disk is unsuitable for low cost, high capacity consumer applications such as video recording.

On the other hand, the latter method can solve the problems of handling and cost in magnetic disk drives that are problems with the former method, but it is still difficult to use the recording/reading magnetic field for floppy magnetic disks. The head is relatively large to provide an interface consisting of a large profile head embedded in a soft, flexible medium. The large surface area of the read/write head reduces force per unit area, which helps reduce media wear and distance loss, so as the media moves past the magnetic head, air collects between the magnetic head and the drum. Forms a thin film. The thickness of this air film is a function of the radius of the surface of the tension head of the medium, the viscosity of the air, and the relative velocity of the disk head, approximately as follows.

h=o, 542 (611V/T)'' h: Thickness of air film R: Radius of head surface V: Relative velocity T: Media tension μ: Viscosity of air Therefore, most flexible "floppy" magnetic The use of disks is limited to low-speed, low-bandwidth digital computer applications. Therefore, flexible or "floppy" magnetic disks have not been used in conventional video.

However, recently, even when flexible magnetic disks are used in electronic photographic devices such as video cameras and electronic image reproducing devices, it is possible to improve performance without excessively wearing out the recording surface of the magnetic disk or the magnetic head. An apparatus including a flexible magnetic disk is proposed, which enables continuous long-term recording and playback of broadband signals from the flexible magnetic disk without sacrificing
This can be seen, for example, in Japanese Patent Laid-Open No. 109914/1983.

The newly proposed prior art device is shown in FIGS. 1, 2, and 3, and its principle is shown in FIGS. 4 to 6. 4 to 6 showing the principle of the device according to the prior art; information is recorded or recorded on the upper main surface IA of a flexible disc-shaped information storage medium l such as a flexible magnetic recording A reading device is shown. This device is equipped with a base body 2 having a smooth surface 2a curved in only one direction in a semicircular shape. And the information storage medium 1 is the mother body 2
On the other hand, before being rotated, it is held on a horizontal plate as shown in Figure 5, and when rotated relative to the base body 2, it follows the curved surface of the surface 2a of the base body 2 as shown in Figure 6. Rotate. The information storage medium 1 consists of a central mounting portion 1a and a storage portion 1b in which information is stored, and a surface 1 of the storage portion 1b.
b is coated with a magnetic flux sensitive material for information storage, and the central mounting portion 1a has a pair of openings 1a2 for coupling the recording medium 1 to a rotational drive device that provides a rotational speed to the information storage medium 1. 1a3 and an opening 1al for loading the storage medium 1 into the cartridge.

The storage and reproduction of information on the storage medium 1 is carried out when the magnetic disk 1 is rotated and the magnetic disk 1 follows the curved surface of the surface 2a of the base body 2.
This is achieved by placing the surface IA of the magnetic disk l and the magnetic head 3 in contact with each other at a selected position along the vertex of the magnetic disk l (T--T line in FIG. 4).

A prior art device using such a principle is shown in FIGS. 1-3. In the apparatus shown in FIG. 1, a base body 2 is held in an outer container 4, and a magnetic disk 1 is placed in the outer container 4 to form a cartridge. The magnetic head 3 is inserted into the outer container 4 and has an opening for contacting the surface of the magnetic disk 1 at the upper part of the outer container 4 of this cartridge. It has a shaped shaft 4a. This shaft 4a is smaller than the opening lal of the magnetic head 3, and the opening +
a. It has larger extensions 4a1 and 4a2. The opening 1a+ of the magnetic disk 1 is inserted through the shaft 4a, and the magnetic disk 1 is rotatably held on the shaft 4a by extensions 4al and 4a2 of the shaft 4a. The base body 2 also has a magnetic disk 1 held by the shaft 4a.
An opening 2C into which the rotary drive shaft 5 is inserted is provided at a position corresponding to the central mounting portion 1a. In the apparatus for handling the magnetic disk l in this manner, the magnetic disk 1 is rotatably supported on the shaft 4a, and there is a space between the shaft 4a and the magnetic disk l when the magnetic disk 1 is at rest. There are no relative positioning means. When this handling device is loaded into an electrophotographic device or an electronic image reproducing device, the rotational drive shaft 5 provided in the electrophotographic device or electronic image reproducing device enters through the opening 2C of the base body 2. However, the bin members 5a and 5b provided at the tip of the rotary drive shaft 5 are arranged at positions where they can engage with the openings 1a2 and 1a3 of the magnetic disk l.

Example> Examples of the invention will be described below.

First, before explaining the embodiments of the present invention (exemplarily shown in FIGS. 9 to 12), the storage unit handling device used in the apparatus of the embodiments of the present invention will be explained.

FIG. 7(a) shows the first embodiment of the T-shaped information storage medium handling device for books, and FIG. 8(a) shows the X-X direction of FIG. Figure 8) is a cross section taken along the Y-Y line in Figure 7(a).

<Problems to be Solved by the Invention> However, in the so-called electronic camera (electronic photographic device) that records video signals on a recording medium such as a magnetic disk in the above-mentioned handling device, the magnetic disk is relatively large. Furthermore, since the drive section for driving the magnetic disk, the head for recording, etc. occupy a large proportion of the camera, their arrangement has been a major problem.

This problem is common not only to disks but to all recording media for recording video signals.

It is an object of the present invention to solve these problems and provide an electronic camera having a new and efficient arrangement.

Means for Solving the Problems> In order to achieve the above-mentioned object, the present invention includes a storage chamber for a recording medium and an optical system that guides a light flux from a subject to an image sensor, and a light beam obtained from the image sensor. In the electronic camera, the storage chamber and the optical system are juxtaposed toward the subject to limit the thickness in the direction of the subject.

<Function> In the above configuration, the light flux from the recording medium storage chamber and the subject is guided to the image sensor (the optical systems are juxtaposed and the thickness in the subject direction is limited).

<Example> Examples of the present invention will be described below.

First, before describing an embodiment of the present invention (exemplarily shown in FIGS. 9 to 12), an information storage medium handling device used in the apparatus of the embodiment of the present invention will be explained.

FIG. 7(a) shows a first embodiment of a sheet-like information storage medium handling device according to the present invention, and FIG. 8(a) is a cross section in the x-X direction of FIG. 7(a). FIG. 8(b) is a sectional view taken along the line Y--Y of FIG. 7(a).

6 is a general term for the entire handling device. 7 is the housing,
8 is a rotating shaft, 9 is a magnetic disk formed of a flexible member, and 10 is a base body. The housing 7 has a recess 7a in which the rotating shaft 8 is disposed, and a magnetic head in the storage chamber enters when the device 6 is loaded into the storage chamber of an electrophotographic device or an electronic image reproduction device. In addition to the slot-shaped opening lower b and positioning holes 7C, 7C2 into which positioning pins provided in the storage chamber are inserted, information stored on the magnetic disk 9 is once erased. , when it is desired to prohibit new information from being stored on it again, the section 7d to be cut out and the engaging section 7e with which a finger or the like is engaged when taking out the device 6 loaded in the storage chamber are It is provided.

The base body 10 is fixed to the housing 7, has a semicylindrical shape with only one side curved, and has a smooth surface 10a. On the smooth surface 10a side of the base body 9, there is a cylindrical protrusion 10b through which the magnetic disk 9 is rotatably inserted into a central opening formed in the central mounting portion 9a of the magnetic disk 9; An annular recess 10G is provided to surround the portion 10b, and a plurality of holes 10c, 10C2 opening to the outside of the base body 10 are provided on the bottom surface of the recess 10C. The rotating shaft 8 is rotatably supported by the housing 7. One end of the rotating shaft 8 is provided with a toothed portion 8a having sharp teeth, which is disposed within the recessed portion 7a of the housing 7 and whose surface is greatly undulated, and the other end is provided with a magnetic disk 9. A portion 8b is provided having protruding pins 8b, 8b2 extending into the four parts 10C of the base body 10 through a plurality of holes 9a2, 9a3 provided near the center opening of the central mounting portion 9a.

The sheet-like information storage medium handling device configured in this way can be used as an electrophotographic device or an electronic image reproducing device in the state shown in FIG. 7(a), FIG. 8(a), and (b). loaded inside. The rotating shaft 8 is used before being loaded into an electrophotographic device or an electronic image reproducing device, and even after being loaded into an electrophotographic device or an electronic image reproducing device.
When the magnetic disk 9 is not being rotated, the magnetic disk 9 extends horizontally as shown by the solid line in FIG. When the pin 8b of the rotating shaft 8 rotates under the rotational force of
1, 8b2 and the magnetic disk 9 are 9a2, 9a.
3, the magnetic disk 9 is rotated so that the disk 9 follows the surface 10a of the base body 10. Further, when the handling device 6 is stored in the storage chamber of an electronic photographic device or an electronic image reproduction device, the positioning holes 7C, 7C2 of the device 6 are engaged with the positioning pins protruding into the storage chamber, A surface provided on the rotary drive shaft on the side of the storage chamber is positioned in a predetermined position within the storage chamber and adapted to engage with a toothing of the rotation shaft 8 of the device 6. The tooth portion having thick (undulating) sharp teeth and the tooth portion 8a of the rotating shaft 8 are engaged with each other.

Then, the magnetic head further protruding into the storage chamber enters from inside the open lower b of the housing 7 and comes into contact with the portion of the magnetic disk 9 corresponding to the apex of the base body IO. As described above, in the handling device according to the present invention, unlike the conventional handling device in which a pin is provided on the rotary drive shaft to be connected to and detached from the sheet-like magnetic disk, the handling device always holds the sheet-like magnetic disk in advance. a rotating shaft 8 having a pin engaged with
is provided in the device 6, and power is transmitted between the electrophotographic device or the electronic image reproduction device 6 by simply connecting and disengaging the rotary shaft 8 and the rotary drive shaft. Alternatively, power transmission between the drive device of the electronic image reproducing device and the magnetic disk 9 can be achieved, and the central mounting portion 9a of the magnetic disk 9 will not be damaged. Note that 11□, 112, 1 provided on the outer surface of the housing 7
Reference numeral 13 denotes an information display section for displaying, for example, the type of magnetic material of the magnetic disk 9 housed in the device 6.

FIG. 7(b) shows an embodiment achieved by changing only the shape of the housing 7 of the device 6 shown in FIG. 7(a).

The device 6' of this embodiment has a lower opening b of the housing 7 with respect to the storage chamber of an electrophotographic device or an electronic image reproduction device.
The embodiment of the device 6' shown in FIG. In this embodiment, the surface 7A can be used as the entrance surface, and the surface 7B is the tapered surface 7B.
, is formed.

FIGS. 9 to 12 show an implementation of an electronic photographic device (hereinafter abbreviated as a camera) according to an embodiment of the present invention suitable for using the handling device shown in FIG. 7(a) as described above. 10 is a front perspective view of the camera, FIG. 9 is a back perspective view, and FIG. 11 is a diagram showing the internal structure of the camera. FIG. 12 is a perspective view of the device storage chamber 76 of the camera shown in FIG. 9 when the device storage chamber lid 70 is opened.

In FIG. 1O, 61 is a normal interchangeable lens, and is provided with adjustment parts such as a distance adjustment ring and an aperture necessary for normal photography. 62 is formed on the camera body 63 so as to be able to engage with the rear end of the interchangeable lens 61. 94 is a half mirror. Reference numeral 63a denotes a camera holding portion formed in a part of the main body, and is formed in a shape that makes it easy to take pictures by hand. 64 is a power switch of this camera. Reference numeral 64' denotes a release switch disposed between the rotation shaft of the power switch and the shaft. 65
is a head access command device (not shown) consisting of, for example, a liquid crystal analog display, for specifying an arbitrary address of a desired portion of image storage provided on an image storage medium to be reproduced; If you keep pressing the button 66, the addresses of the recorded images will be displayed sequentially from, for example, l by means not shown, and if you release the button 66 when it overlaps with the address of the desired recorded image, the display will be displayed at that time. The head 91 accesses the image recording portion at address , reproduces the image, and enables monitoring.

67 is a recording switching button. During playback of the head access command device 65, that is, the recording switching button is in the PLB shown in the figure.
The functions when the camera is set to the position are as described above, but if the camera is in the image recording state,
That is, when the recording switching button 67 is set to the MTR position shown in the figure, the display corresponds to the address where the head is located, and functions as a number of sheets counter. At this time, even if button 66 is pressed, the display is not affected in any way. 6
8 is an LC matrix display device, and 73 is the display device 68.
This is a shutter that protects the vehicle from contamination and mechanical shock when it is not in use, and is shown in the open state in the figure. Here, display 6
8 is placed on the rear side of the camera as shown in the figure, making it an extremely convenient arrangement for observing the display. Reference numeral 69 denotes an optical finder eyepiece, which can be used for power saving purposes or when it is difficult to use an LCC matrix display for some reason. The photoelectric conversion element 95 can be placed in the original optical path of a normal single-lens reflex camera as a finder structure, and in this case, the photoelectric conversion element 95 can be arranged as an auxiliary prism on one side of a normal pentagonal roof prism 90, as shown in FIG. 92 can be provided and arranged. 70 is an opening/closing lid of a storage chamber that houses the handling device 6 having the image storage medium 9 that can be opened and closed around a hinge 71 fixed to a part of the main body 63;
Reference numeral 70b indicates a locking member for opening the lid, and 70b indicates a viewing window for viewing the storage chamber, which is made of transparent plastic, for example, and is useful for confirming the presence or absence of the device 6. Reference numeral 72 indicates a strobe device, and an electronic contact point 72 for transmitting and receiving signals with the camera.
A is provided. FIG. 11 is a sectional view of the camera, showing a state in which the device 6 is stored in the device storage chamber 76. As shown in the figure, the storage chamber 76 is arranged on the rear side of the camera, and the semi-transparent mirror 94 is located on the right side when viewed from the rear side of the camera. It is arranged so as to be juxtaposed with an optical system consisting of an eyepiece 69. Therefore, the thickness of the camera can be reduced, and operability is improved. The opening/closing lid 70 is provided with a device holding spring 74, and in the closed state, the spring 74 acts to restrict the device 6 to its normal position. In the illustrated state, the magnetic disk 9 in the device 6 is in contact with the magnetic head 91. A positioning pin 77 is fixed to a part of the main body, and is engaged with a positioning hole 7C provided in the device 6. A motor 14 rotates the storage medium 9, and in this embodiment, it is shown as a flat motor due to the structure of the camera. A small diameter pulley 80 is fixed to the output shaft 79 of the motor. 83 is a rotary drive shaft rotatably supported by a bearing 82, and a large diameter pulley 82 is fixed to the rotary drive shaft 83. 81 is a power transmission belt stretched between pulleys 80 and 82. With such a structure, electric power controlled by a motor drive circuit (not shown) is supplied to the motor 94, and when the motor 94 rotates, the pulley 80. Belt 81.
A rotary drive shaft 85 is rotated via the pulley 82, and the rotation of the rotary drive shaft 86 is further transmitted to the rotary shaft of the device 6,
A magnetic disk 9, which is an image storage medium, rotates at a constant speed. When this storage medium rotates at a constant speed, information on the storage medium 9 is reproduced or information is stored on the storage medium 9. 87°88.89 is an example of the head access mechanism 16, in which a rack 81 engages with a small and large force 88 fixed to the shaft of a motor 87.
The configuration of a sliding member 89 having a is shown. Since the sliding member 89 is integrated with the head 91, the motor 8
It is clear that the head 91 moves on the storage medium 9 by the forward and reverse rotation of the head 7, and the random access operation of the head is performed by rotating the motor in response to a control signal from the head access circuit.

Incidentally, the motor 87 is preferably a pulse motor,
This allows for easier control. Reference numeral 90 denotes a penta roof prism constituting an optical finder. A small prism 92 is fixedly attached to a part of the prism, and a photoelectric conversion element 95 is arranged on the prism 92. The photoelectric conversion element 95 is optically arranged so that light passing through the pentagonal roof prism 90 and the small prism 92 reaches it.

FIG. 13 is a plan view showing an embodiment of an electronic image reproducing device suitable for using the handling device according to the present invention shown in FIGS. is the opening/closing lid 7
0' indicates an open state. 101 is the main body of the electronic image reproducing device. FIG. 13 shows an image information reproducing screen of a television cathode ray tube, 91' is a magnetic head, and the magnetic head 91' is sequentially and intermittently fed toward the rotating shaft 85 side. Reference numeral 77 denotes a positioning bin that protrudes from the storage chamber 96' in which the device 6 is stored, and the bin 77' is inserted into the positioning holes 7C, 7C2 of the device 6 when the device 6 is loaded into the storage chamber 96'. 96' to position the device 6 at a predetermined position within the storage chamber 96'.

In such an electronic image reproducing device which is an embodiment of the present invention, devices 6 and 6' as shown in FIGS. 7(a) and 7(b) are placed in a storage chamber 96'. When loaded from the side corresponding to the teeth 8a of the rotating shaft 8, the device 6.6
The teeth 8a of the rotation shaft 8 provided on the side 6 and 6' engage with the rotation drive shaft 85a provided on the image reproduction device 101 side, and the rotational force of the rotation drive shaft 85 is applied to the rotation shaft 8 of the device 6.6'. At the same time, the magnetic head 91 can transmit data to the device 6.
, 6' enters into the device 6.6' through the open lower b of 6', and can come into contact with the magnetic disk 9.

FIG. 14 shows a mechanism suitable for an electronic photographic storage and reproducing system using the handling device 6' shown in FIG.
It goes without saying that B is suitable for use as an entrance surface and can be commonly applied to the electronic photographic device and the electronic image reproducing device;
A case where the present invention is applied to the electrophotographic apparatus shown in FIG. 12 will be explained as an example.

In FIG. 14, there is a handling device 6 in the device storage chamber 76.
The handling device 6' is loaded with the front surface 7b of the handler 6' being the entry side. 77'2 is the device 6' when loaded.
' with a positioning pin that is engaged with the positioning hole 7C,
The positioning pin 77'2 is always urged inward by the spring 31 into the storage chamber 76. 77′.

is a positioning pin that is engaged with the positioning hole 7C2 of the device 6' when the device 6' is loaded; a fork member 32 is provided at the other end of the pin 77'1; 33. The fork portion is provided on the head support member 33. ．． It is located between 33□.

89' is a long hole 89b that is engaged with the fixed pin 34.
This sliding member 8 is a sliding member that can be slid while being guided by
9' is moved via a gear 88 fixed to the output shaft of a stepping motor 87. The head support member 33
The pin 35 embedded in the sliding member 89' is
It has an elongated hole 33a that is guided by, and can be slid up and down. Reference numeral 83 denotes a rotational drive shaft, which has a toothed portion 85a that can engage with the toothed portion 8a of the rotating shaft 8 of the loaded device 6'. Furthermore, the rotary drive shaft 83 is slidable on the pulley 82', and when the rotary drive shaft 83 moves downward, an engagement groove 82'a is formed which engages with the pin 831 of the rotary drive shaft 83. have. and pin 83. When the engagement groove 82'a is engaged with the pulley 82', the driving force from the motor is transmitted to the rotating drive shaft 83 via the belt 81'.

Reference numeral 36 denotes a leaf spring having one end fixed and the other end free.
', are always energized.

In the mechanism configured in this way, the device 6' is connected to the storage chamber 76.
When the head 93 is not loaded into the storage chamber 76, the rotating shaft 83 of the head 93 and the positioning pin 77'1 protrude into the storage chamber 76 due to the biasing force of the leaf spring 36. And the device 6' is the storage chamber 7.
6, the locating pin 77'1 is first pushed upward against the biasing force of the plate spring 36 by the tapered surface 7B of the locating pin 77'.
The head support member 33 moves upward via the fork member 32 in conjunction with the push-up operation of ', and the head 91 begins to exit from the storage chamber 76. Further, in response to the upward displacement of the leaf spring 36 by the withdrawal of the positioning pin 77', the rotary shaft 83 is also pushed up by the leaf spring 36, and the groove 82'a of the pulley 82' and the member 83 on the rotary drive shaft 83 are pushed up by the leaf spring 36. ．． The engagement with is released. When the device 6' is completely loaded and the positioning pins 77', 77'2 are completely inserted into the holes 7C, 7C2 of the device 6', the positioning pins 77', 77'2 are inserted into the device 6'.
As the magnetic head 91 and the rotational drive shaft 83 are moved downward, the head 91 is engaged with the magnetic disk 9, and the teeth 85 of the rotational drive shaft 83 are connected to the rotational shaft inside the device 6'. 8 are engaged with each other, and a power transmission relationship is formed between the rotary drive shaft 83 and the rotary shaft 8.

In this way, in this embodiment, as the device 6' is loaded, the teeth 85 of the rotational drive shaft 83 of the magnetic head 93 escape to the outside of the storage chamber 76, making it easier to load the device 6'. ,
Since the magnetic head 91 and the teeth 85 are set to the device 6' only when the device 6' is completely loaded in a predetermined position, allows insertion of the device 6' from the right angle.

Note that 36 shown in FIGS. 15 and 17 is a pen attached selectively or from the beginning to the magnetic head 91, and the pen 91 traces the trajectory made by the magnetic head 91 on the magnetic disk 9. This is for visual recording, and the part written with this pen 91 is aligned with the scale 7f that is graduated along the extension direction of the opening lower b in the device 6', and is used on the magnetic head 91. It allows you to get to know the track.

FIG. 17 shows an improved head device used in the above-mentioned electrophotographic device or electronic image reproducing device. A counterweight device 39 that is held is provided on the right side, and the left device and the right counter device are connected to a lever 41 that is pivotally supported to the head holding member 33 via a pin 40. Fixed. Therefore, even if the electrophotographic device or the electronic image reproducing device falls over, the magnetic head 91 can be brought into reliable contact with the magnetic disk 9 by the action of the counterweight device 39.

FIG. 18 shows an embodiment in which the magnetic head in the electrophotographic device and the electronic image reproducing device described above is a movable type, whereas the magnetic head shown in this embodiment is a fixed type. A magnetic head device 91' includes a plurality of magnetic heads 91', 91'2 arranged in the radial direction of a magnetic disk 9.
Consisting of When the device 6゜6' is loaded, each of the magnetic heads 91'1 to 91 of the magnetic head device 91 is loaded.
'm is the open lower lower b, 7b' of the device 6, 6'
The magnetic heads 91'1 to 91'n are brought into contact with the magnetic disk 9. 92 is a switch device having a plurality of switches 92'1 to 92'n connected in pairs to the magnetic heads 91' and 91'n;
The switches 92 to 92n of the switch device 92 are sequentially controlled by a known switch selection device.

That is, switch 92 . of switch device 92 . ~92n
The selection signal from the switch selection device is input, and if the input signal is a signal that turns on the magnetic head 921, the magnetic head 9
1' is enabled, and the other switches 92□ to 92n are disabled. Then, when the input signal from the switch selection device is a signal that turns on the switch 92□, the magnetic head 91'2 becomes effective, and the other switch 92
．． ．． 923 to 92n are sequentially controlled so as to be in the disabled state, and if a signal to turn on the switches 92 and 92□ is manually input, the switches 92 and 92□ are simultaneously enabled and the other switches are 923 to 92n are in an invalid state. In other words, various switches 92 . .about.92m is controlled, and each magnetic head of the magnetic head device 91' paired therewith becomes effective. Then, the magnetic disk 9 that is in contact with the enabled magnetic head
Information is stored on the surface of the magnetic disk, or information stored on the surface of the magnetic disk is reproduced.

Therefore, if such a multi-magnetic head device 91' is used, like the magnetic head device used in the electrophotographic device or the electronic image reproducing device shown in FIGS. Since it is not necessary to move the magnetic head every time the track changes, a mechanism for moving the magnetic head is not required.

In the embodiment described above, the configuration of the present invention is exemplarily shown in FIG.

That is, as shown in FIG. 11, a storage chamber 76 for the device having the magnetic disk 9 and an optical system consisting of a flange back or the like having a semi-transmitting mirror 94 for guiding the light beam from the object to the image pickup device 2 are juxtaposed. Therefore, the overall shape of the camera can be made thinner, which has the effect of making it more compact.

Furthermore, in this embodiment, since the magnetic disk 9 itself has a predetermined width, the storage chamber 76 of the device containing the disk 9 is placed on the right side when viewed from the rear of the camera, and the optical system including the optical finder is placed on the left side. This arrangement has the effect that when the user grasps and holds the camera with his or her right hand, the right hand does not get in the way of the viewfinder, making it easier to observe the viewfinder.

Furthermore, relatively heavy elements such as a motor for rotating the disk, a head for recording on the disk, and a drive unit for the head are provided in front of the storage chamber 76 of the device having the disk. When the camera is held with the right hand, heavy elements are concentrated near the right hand, which has the effect of stabilizing the center of gravity by 4.

<Effects of the Invention> As explained above, according to the present invention, a storage chamber that stores a recording medium for recording an image signal from an image sensor and an optical system that guides a luminous flux from a subject to an image sensor are juxtaposed, By limiting the thickness in the direction of the subject, the overall arrangement can be made more efficient, the overall shape of the camera can be made more compact, and the operability can be improved.

[Brief explanation of drawings]

1 and 2 are cross-sectional views of a conventional sheet-shaped information storage medium handling device, and FIG. 1 shows a magnetic disk l being rotated by a rotary drive shaft 5. FIG. 2 shows the state before the magnetic disk 1 is rotated by the rotary drive shaft 5. As shown in FIG. FIG. 3 is a plan view for explaining in detail the magnetic disk 1 housed in the handling device shown in FIGS. 1 and 2. FIG. FIGS. 4 to 6 are diagrams for explaining the principle of FIGS. 1 and 2. FIG. 7(a) is an external perspective view of an information storage medium handling device used in the device of the first embodiment of the present invention. FIG. 7(b) is an external perspective view of an information storage medium handling device used in the second embodiment of the present invention. FIG. 8(a) is a sectional view taken along the line Y--Y in FIG. 7(a), and FIG. 8(b) is a sectional view taken along the line XX in FIG. 7(b). 9 and 10 are perspective views of an electronic photographic device according to an embodiment of the present invention that uses the handling device shown in FIGS. 7 and 8, and FIG. 9 shows the state seen from the rear side. and FIG. 10 shows the state seen from the front side. FIG. 11 is a sectional view of the electrophotographic apparatus shown in FIGS. 9 and 10. FIG. 12 is a perspective view showing the inside of the storage chamber of the electrophotographic apparatus shown in FIG. 1O with the storage chamber lid opened. FIG. 13 is a front view of an electronic image reproducing apparatus using the handling apparatus shown in FIGS. 7(a), 8(b), and 8, with the storage chamber lid removed. FIG. 14 is a sectional view showing a loading mechanism for receiving the handling device in an electrophotographic device or an electronic image reproduction device suitable for use with the handling device shown in FIG. 7(b). FIG. 15 is a side view showing a magnetic head device that is a modification of the magnetic head device shown in FIG. 14. FIG. 16 is a perspective view showing a mechanism for engaging and disengaging power transmission between the pulley shown in FIG. 14 and the rotary drive shaft. FIG. 17 is a perspective view of a modified magnetic head device in the electrophotographic device or the electronic image reproducing device shown in FIGS. 9 to 15. FIG. 18 is a perspective view of a modified magnetic head device in the electrophotographic device or electronic image reproducing device shown in FIGS. 9 to 15, and a diagram for explaining the operation of this magnetic head device. It shows. 7・・・・・・・・・・・・・・・・・・Housing 8・・・・・・・・・・・・・・・・Rotating shaft 9・
・・・・・・・・・・・・・・・Magnetic disk 1
0・・・・・・・・・・・・・・・・・・Material body 85・
・・・・・・・・・・・・・・・Rotation drive shaft 91
・・・・・・・・・・・・・・・・・・Magnetic head 7
7・・・・・・・・・・・・・・・・・・Positioning bin 36・・・・・・・・・・・・・・・Pen 3
9・・・・・・・・・・・・・・・・・・Counterweight device. Atsuri Kasumi Mawari 5 Figure 7 Section (α) Ze Figure 8 ((1) -70 Figure 15 j Figure 76

Claims (2)

[Claims] (1) An electronic camera that has a storage chamber for a recording medium and an optical system that guides a luminous flux from a subject to an image sensor, and records an image signal obtained from the image sensor on the medium, and is directed toward the subject. The electronic camera is characterized in that the storage chamber and the optical system are arranged side by side to limit the thickness in the direction of the object. (2) The electronic camera according to claim 1, wherein the recording medium is in the form of a sheet, and the storage chamber is arranged on the right side facing the subject.