JPH0534804A - Camera - Google Patents

Abstract

PURPOSE:To stably and surely perform magnetic recording on a photographic film and photographing with a simple configuration. CONSTITUTION:At the time of photographing, a solenoid device 7 is turned on so as to rotate an operation lever 8 and a magnetic head 6 is separated from the photographic film 1, and the photographic film 1 is fed in a state of a stable and good flatness, and furthermore, photographing data is recorded by an MCU 15 in accordance with each photographing frame. And at the time of rewinding the film, the solenoid device 7 is turned off, so that the magnetic head 6 is abutted on the photographic film 1, and the photographing data stored in the MCU is recorded at a time in accordance with each photographing frame.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera capable of photographing a subject image and magnetically recording various photographing data on a part of a photographic film.

[0002]

2. Description of the Related Art Using a silver salt film on which a magnetic recording layer is formed, various kinds of photographing data are recorded for each frame on the magnetic recording layer.
A camera provided with a magnetic head for magnetically recording (frame number, date, camera data, user code, etc.) has been proposed.

[0003]

In the above camera, magnetic recording on the magnetic recording layer on the film has the following problems.

Since the magnetic head is pressed against the film, the flatness of the film changes, which may affect exposure and shooting. Therefore, the magnetic head may be separated from the film at the time of photographing, but a durable means for moving the head for each photographing is required. If magnetic recording is performed on each of the photographed frames, the feeding of the film will be unstable and the recording data density will decrease.

SUMMARY OF THE INVENTION An object of the present invention is to provide a camera which has a simple structure and allows magnetic recording on a photographic film and photographing to be performed stably and reliably.

[0006]

In order to achieve the above object, in a camera equipped with a magnetic head for recording photographed data on a magnetic coat portion formed on a photographic film, film edge detection for detecting the end of the photographic film. Means, frame position detection means for detecting the position of each photographed frame of the photographic film, storage means capable of storing photographed data corresponding to each photographed frame, magnetic head separated from the photographic film at the time of photographing, and the film A head for contacting the magnetic head with the photographic film in order to store the shooting data stored in the storage means at the time of film rewinding in the magnetic coat portion corresponding to each shooting frame in response to the end detection signal from the end detection means. And a means for moving.

The second means corresponds to each of the photographed frames in the above-mentioned camera, the setting means for setting the manual rewinding, the frame position detecting means for detecting the position of each photographed frame of the photographic film, and the frame position detecting means. Storage means capable of storing shooting data and a magnetic head separated from the photographic film at the time of shooting, and the shooting data stored in the storage means corresponds to each shooting frame at the time of manual rewinding by the setting by the setting means. Head storage means for contacting the magnetic head with the photographic film for storing in the magnetic coat portion is provided.

A third means is to use a photographic film in the above-mentioned camera, which is provided with a frame number recording section capable of recording the data of the number of frames already photographed in the region before the frame of the photographed frames. Based on the data of the photographic film, when the photographic film is reloaded, the feeding means for feeding the photographic film to the unused photographic frames, the storage means for storing the photographic data corresponding to each photographic frame, and the magnetic head from the photographic film at the time of photographing When the film is rewound and the film is rewound, the magnetic head is brought into contact with the photographic film in order to store the photographic data stored in the storage means in the magnetic coat portion corresponding to each newly photographed frame, so that the photographic film is already used. The photographing frame portion is provided with head moving means for separating the magnetic head from the photographic film.

[0009]

According to each of the above-mentioned means, the storage means for storing the photographed data corresponding to each photographed frame is provided, and the first means at the time of film rewinding, the second means at the time of manual rewinding, the first means. In the means of 3, the magnetic head is brought into contact with the photographic film by the head moving means at the time of rewinding the film after reloading the photographic film which has been used halfway, and the photographing data stored in the storage means is photographed. Recording is performed at once on each of the magnetic coating sections corresponding to the frames, so the film feeding is stable, so the recording operation is stable, the recording density can be increased, and the magnetic head is separated from the photographic film at the time of shooting by the head moving means. Therefore, the flatness of the film is improved, and high-quality shooting is performed. Further, the magnetic head does not have to be moved for each frame and the number of operations of the head moving means is small. Therefore, high durability is not required and the structure of the head moving means is simple.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is an explanatory view showing the schematic constitution of one embodiment of the present invention, in which 1 is a known photographic film which is made of a silver salt film and in which a magnetic coating portion for recording photographed data is formed. Reference numeral 2 is a film cartridge in which the photographic film 1 is stored, 3 is a film winding section on the camera side, 4 is a pressure plate installed on the back side of the photographic film 1 between the film cartridge 2 and the film winding section 3, and 5 is a taking lens. Is.

Further, 6 is a magnetic head for magnetically recording on the magnetic coating portion, 7 is a solenoid device, 8 is an L-shape having the magnetic head 6 fixed to one end and the other end connected to an operating rod 7a of the solenoid device 7. Is a rotatable operation lever, and 9 is a spring for biasing the operation lever 8 to rotate in the clockwise direction. The solenoid device 7, the operation lever 8 and the spring 9 constitute a head moving means. There is.
Reference numeral 10 is a pad body that is installed to face the magnetic head 6 and is in contact with the magnetic head 6 through the photographic film 1, and 11 is a perforation detector including a photosensor for detecting the perforation of the photographic film 1.

FIG. 2 is a block diagram showing the main part of the control section of the present embodiment. Reference numeral 15 is a microcomputer unit (MCU) for exchanging signals with the following sections, 16 is a photographing information input circuit, and 17 is a shutter. , A photographing section driving circuit for driving a photographing section such as a focus mechanism and a zoom mechanism, 18 a film feeding motor driving circuit, 19 a magnetic head recording / reproducing circuit for performing recording / reproducing processing on the magnetic head 6, and 20 a manual read / write circuit. The winder (rewinding) setting means is the MCU 15
In this embodiment, the function as a film edge detecting means for detecting the end of the photographic film 1 in response to the detection signal from the perforation detector 11, and the photographic film 1
It has a function as a frame position detecting means for detecting the position of each shooting frame and a function as a storage means capable of storing shooting data corresponding to each shooting frame.

FIG. 3 is a plan view showing the leading end portion of an example of the photographic film used in this embodiment. In this example, perforations 22 are formed on the upper and lower sides of the photographic film 1 in correspondence with each photographing frame 21. The magnetic coating portion 23 is formed between the perforations 22 or by the transparent magnetic layer.
Is formed in part. Also, the photographic film 1 part on the right side of the first shooting frame 21 is the number of used (shooting) shooting frames.
(Frame number), or a frame number recording unit 24 for recording that all have been used.

Next, the above embodiment will be described with reference to the flow charts of FIGS.

When the film cartridge 2 is loaded in a predetermined position of the camera body, the solenoid device 7 is turned on by the output from the MCU 15, and the operating rod 7a pulls the operating lever 8 against the elastic force of the spring 9. The operation lever 8 is rotated counterclockwise to bring the magnetic head 6 into contact with the frame number recording section 24 of the photographic film 1 (S1). Here, the magnetic head 6 first reads the edge data of the imaged frame set in the imaged frame portion of the camera body (S2). After the reading is completed, the solenoid device 7 is turned off, the operation lever 8 is pulled by the elastic force of the spring 9 and rotated clockwise, and is separated from the photographic film 1 (S3).

If all the photographic films 1 have been photographed (NO in S4, YES in S5), film rewinding is performed (S6). If it is a new film (YES in S4) or if there is an unused photographing frame 21 (NO in S5),
Film feed the first usable frame to a predetermined position
After (the number of used frames, or the length obtained by adding a margin to this number of frames) (S7), the release becomes possible (S
8). The film feeding is controlled by counting the number of perforations detected by the perforation detector 11 with the MCU 15.

When the shutter is released here (YES in S8),
The shooting data is M corresponding to the number (number) of the shooting frames 21.
It is stored in the memory in CU15 (S9) and film winding unit 3
Then, the photographic film 1 is wound up for one frame (S10).
Then, there are still frames that can be photographed (NO in S11), the winding is completed (YES in S12), and the manual rewind is not set by the manual rewinder setting means 20 (N in S13).
O), the next release becomes possible (S8).

When the perforation detector 11 does not detect the perforation 22 for a predetermined fixed time, the MCU
15 determines that the photographic film 1 has reached the end of the film (YES in S11). When this film end detection or manual rewind is set by the manual rewinder setting means 20 (YES in S13), the magnetic head 6 is again brought into contact with the photographic film 1 (S14), and the film cartridge 2 is set.
The film rewinding is started (S15).

At the time of rewinding the film, the perforation detector 11 and the MCU 15 detect the photographed frame 21,
The shooting data stored in the MCU 15 is transferred to the magnetic head 6
According to the number of frames for each frame,
It records in 23 (S16). When the recording of the photographing data is completed (YES in S17), the magnetic head 6 is separated from the photographic film 1 (S18), and if the recording is not completed at the first photographing frame 21 (NO in S19), 1 The photographic film 1 is rewound to the th photographing frame 21 (S20), and the magnetic head 6 is again brought into contact with the photographic film 1 (S21).

If all the shooting frames 21 are used here
(YES in S22), the magnetic head 6 records in the frame number recording unit 24 that all the frames have been used (S23), and the unused frames are recorded.
If 21 remains (NO in S22), the number of used shooting frames is recorded (S24). This recording may be performed by erasing the previous data recorded in the frame number recording section 24, but as shown in FIG. 3, it is the first time toward the leading edge of the photographic film 1 (A1 portion). 2nd time (A2 part) 3rd time
If the method of rewriting such as (A3 portion) is adopted, it is not necessary to provide an erasing head. In this case, the step
For reading (S2), the data on the most front side of the photographic film 1 may be validated.

When the recording in the frame number recording section 24 is completed, the magnetic head 6 is separated from the photographic film 1 (S25), and the photographic film 1 is completely rewound onto the film cartridge 2 (S25).
6).

In the above embodiment, the magnetic head 6 is directly moved as the head moving means. However, the pad body 10 contacting the magnetic head 6 through the photographic film 1 is used.
It is also conceivable that the magnetic head 6 and the photographic film 1 are brought into contact with or separated from each other by moving the.

[0024]

As described above, according to the above-described means of the present invention, the photographed data is recorded on each photographed frame at one time by bringing the magnetic head into contact with the photographic film when the film is rewound. However, since the magnetic head is separated from the photographic film at the time of shooting, the film feeding is stable, so the recording operation is stable, the recording density can be increased, and the flatness of the photographic film at the time of shooting becomes good, resulting in high image quality. Since the shooting is done and the head moving means has few operations,
It is possible to provide a camera which has a simple structure such that a highly durable structure is not required and a relatively simple structure is sufficient, and magnetic recording on a photographic film and photographing can be performed stably and reliably.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a schematic configuration of an embodiment of a camera of the present invention.

FIG. 2 is a block diagram showing a main part of a control system of this embodiment.

FIG. 3 is a plan view showing a leading end portion of an example of a photographic film used in this embodiment.

FIG. 4 is a flowchart relating to a recording operation of this embodiment.

FIG. 5 is a flowchart of the recording operation of the present embodiment, which is subsequent to FIG.

[Explanation of symbols]

1 ... Photographic film, 2 ... Film patrone, 3 ...
Film winding section, 6 ... Magnetic head, 7 ... Solenoid device, 8 ... Operating lever, 9 ... Spring, 7, 8,
9 ... Head moving means, 10 ... Pad body, 11 ... Perforation detector, 15 ... MCU (film edge detecting means, frame position detecting means, storage means), 16 ... Shooting information input circuit, 18 ... Film feeding motor drive circuit , 20 ... Manual rewinder setting means, 21 ... Shooting frame, 22 ... Perforation, 23 ... Magnetic coating section, 24 ... Frame number recording section.

Claims (3)

[Claims] 1. A camera provided with a magnetic head for recording photographing data on a magnetic coat portion formed on a photographic film, wherein a film edge detecting means for detecting an end of the photographic film and a position of each photographing frame of the photographic film are detected. Frame position detecting means for detecting, storage means capable of storing shooting data corresponding to each shooting frame, magnetic head is separated from the photographic film at the time of shooting, and receiving the end detection signal from the film end detecting means, A camera provided with head moving means for bringing the magnetic head into contact with the photographic film so that the photographic data stored in the storage means at the time of film rewinding are stored in the magnetic coat portion corresponding to each photographic frame. . 2. A camera provided with a magnetic head for recording photographing data on a magnetic coat portion formed on a photographic film, and setting means for setting manual rewinding and detecting the position of each photographing frame of the photographic film. Frame position detection means, a storage means capable of storing shooting data corresponding to each shooting frame, a magnetic head separated from the photographic film at the time of shooting, and a storage means at the time of manual rewinding by the setting by the setting means. A camera comprising head moving means for bringing a magnetic head into contact with a photographic film in order to store the stored photographing data in a magnetic coat portion corresponding to each photographing frame. 3. A camera having a magnetic head for recording photographed data on a magnetic coat portion formed on a photographic film, wherein a frame number recording unit capable of recording data on the number of photographed frames is recorded in a portion before a photographed frame portion. Using the provided photographic film, further, based on the data of the number of frames already taken, when the photographic film is reloaded, the feeding means that feeds the photographic film to the unused photographic film, and the photographic data is stored corresponding to each photographic film In order to store the possible storage means and the magnetic head from the photographic film at the time of shooting, and to rewind the film, the shooting data stored in the storage means is stored in the magnetic coat part corresponding to each newly shot shooting frame, The magnetic head is brought into contact with the photographic film, and the head moving means for separating the magnetic head from the photographic film in the already used photographing frame portion. A camera that is equipped with.