JPH0667277A - Camera capable of recording underwater photographic information - Google Patents

Abstract

PURPOSE:To provide the camera which can record the hydraulic pressure and/or the depth of water, etc., as photographic information at the magnetic recording part on a photographic film when taking an underwater photograph. CONSTITUTION:The camera which can take an underwater picture and uses a film having the magnetic recording part as an information recording medium on the photographic film is equipped with a detecting means 4 which detects the hydraulic pressure and/or the depth of water, a photographic information recording means 7 which records the hydraulic pressure data and/or water depth data detected by the detecting means 4 as the photographic information at the magnetic recording part, and a recording control means 1 which makes the photographic information recorded by the photographic information recording means 7 correspond to the photographed image.

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 recording photographing information, and more specifically, to recording underwater photographing information capable of recording photographing information of water pressure data and / or water depth data in a magnetic recording portion on a photographic film. It's about the camera.

[0002]

2. Description of the Related Art Conventionally, various cameras capable of recording environmental information at the time of photographing have been proposed. For example, JP-A-4-70
As disclosed in Japanese Laid-Open Patent Publication No. 725/725, in a camera that records a captured image, a temperature sensor, a recording unit that records temperature data obtained from the temperature sensor, and the temperature data are associated with the captured image. A camera capable of recording temperature information, comprising: recording control means for recording in recording means. Further, as disclosed in Japanese Patent Laid-Open No. 4-70726, in a camera that records a captured image, a humidity sensor, a recording unit that records the humidity data obtained from the humidity sensor, and the humidity temperature data are recorded. There has been proposed a camera or the like capable of recording humidity information, which is provided with a recording control unit that records the captured image in the recording unit in association with the captured image.

[0003]

However, as described above, the environmental information to be recorded is the temperature information and the humidity information in the conventional one as described above, and the water pressure information and / or the water depth information is recorded by the camera capable of underwater photography. No camera has been proposed yet.

An object of the present invention is to record water pressure information and / or water depth information when underwater photography is performed with a camera capable of underwater photography, and to see the water depth and water pressure at the location where photography is made by looking at the print later. Another object of the present invention is to provide a camera capable of recording water pressure information and / or water depth information corresponding to a photographed image in a magnetic recording portion on a photographic film and capable of recording underwater photographed information.

[0005]

A camera capable of recording underwater image information according to the present invention is a camera which is capable of underwater image recording and uses a film having a magnetic recording portion as an information recording medium on a photographic film. Alternatively, a detecting means for detecting the water depth, a photographing information recording means for recording the water pressure data and / or the water depth data detected by the detecting means in the magnetic recording section as photographing information, and photographing information recorded by the photographing information recording means And a recording control unit for recording the image in correspondence with the captured image.

[0006]

When the underwater image is taken by the above-mentioned camera, the water pressure and / or the water depth is detected by the camera, and the detected water pressure data and / or water depth data is made to correspond to the taken image on the magnetic recording portion on the photographic film. Record.

[0007]

The present invention will be described below with reference to the illustrated embodiments. FIG. 1 is a block configuration diagram of a camera capable of recording underwater photographing information according to an embodiment of the present invention. This camera has a CPU 1 composed of a microcomputer for sequence-controlling the operation of the camera, a photometric means 2 for measuring the brightness of a subject, and a distance measuring means 3 for measuring the subject distance.
The water pressure detection means 4 for detecting the water pressure at the time of photographing, the release switch 5 which is turned on when the release button is pressed down, the exposure means 6 for exposing the subject image on the film, and the information recording means 7 for recording water pressure data and the like. , Its main part is composed.

When taking an image of the camera underwater with the camera constructed as described above, the subject brightness measured by the photometric means 2 is first input to the CPU 1 to determine the diaphragm and shutter speed of the taking lens. Further, the distance to the subject measured by the distance measuring means 3 is input to the CPU 1 to determine the amount of lens extension. Then, the water pressure detection means 4 detects the water pressure in the water outside the camera, and the detected water pressure data is input to the CPU 1. Here, when the release button is pressed and the release switch 5 is turned on, an exposure control signal is output from the CPU 1 to the exposure means 6, and the subject image is exposed on a film (not shown). Further, when the release button is pressed or immediately after it is pressed, the measured water pressure data and the like are output from the recording control means inside the CPU 1 to the information recording means 7. The information recording means 7 records the water pressure and / or water depth data and the like in a magnetic recording portion (not shown) on the film in correspondence with the photographed image.

When printing the film on which the underwater photography information is recorded, the water pressure data recorded on the film is read by the stretcher at the time of printing, and at the same time when the image is printed, the water pressure and / or water depth data is printed on the photographic paper. Imprint. 2 and 3 respectively show print images in which water pressure data and water depth data are imprinted. In FIG. 2, for example, a water depth of 15 m is printed and a water depth of 15 m is printed.
It is displayed that the image was taken at m, and in FIG. 3, it is displayed that the image was taken underwater at a place where the water pressure was 1.5 atm.

FIG. 4 shows a more specific structure of the camera shown in FIG. 1, in which the CPU 11 for controlling the entire camera is provided with a CPU 11 for controlling the entire camera, the object brightness data from the photometry circuit 12, and the distance measurement circuit 13 circuit. The distance data from the camera to the subject is input, and the CPU 11 outputs shutter speed data to the shutter control mechanism 14 and lens extension amount data to the focus adjustment mechanism 15. All of these are known.

Further, from the CPU 11, the photographing information,
Various information data is output to the display circuit 16 to display various information such as the date. Then, from the clock circuit 17, the date data created in the circuit 17 is stored in the CPU.
It is output to 11. Further, the CPU 11 inputs / outputs information to / from a storage circuit 18 composed of an EEPROM for temporarily storing magnetic recording information. Further, the ON / OFF signals of the photometry / distance measurement start switch 19, the exposure start switch 20, and the rewind start switch 21 are the CPU 11 described above.
Entered in.

At the time of photographing, the CPU 11 outputs a photographing information signal detected by a detecting means (not shown) to the magnetic information recording circuit 22. The magnetic information recording circuit 22 outputs a photographing information drive signal to the magnetic head 24 which records the photographing information in the magnetic recording portion on the film 23 having the magnetic recording portion. A film feed amount data signal is input to the CPU 11 from a film feed amount detection mechanism 25 for detecting the film feed amount at the time of frame feeding and rewinding of the film. Based on the film feed amount data signal, the CPU 11 outputs a film feed signal for feeding a film to the drive circuit 26. Then, from the drive circuit 26, a film feeding drive signal is output to the film feeding mechanism 27,
The film 23 is fed or rewound.

Next, the operation of the camera configured as described above and capable of recording underwater photographing information will be described with reference to the flowchart shown in FIG. In step S1, the sequence starts and the process proceeds to step S2. In step S2,
It is confirmed whether or not the photometry / distance measurement start switch 19 is turned on, and when the switch is turned on, the process proceeds to step S3.
In the subroutine of step S3, the subject brightness and the distance to the subject are measured, and the process proceeds to step S4. In the subroutine of step S4, the water pressure and / or the water depth are measured, and the process proceeds to step S5. In step S5, it is confirmed whether or not the exposure start switch 20 is turned on, and when the switch 20 is turned on, the process proceeds to step S6. In the subroutine of step S6, the focus of the taking lens of the camera is adjusted, and the process proceeds to step S7. In the subroutine of step S7, the subject image is exposed on the film, and the process proceeds to step S8.

Next, in step 8, the film winding mechanism 27 starts winding the film 23. Then, the process proceeds to step S9. In the subroutine of step S9, while the film 23 is being wound, the CP
A photographing information data signal is output from U11 to the magnetic information recording circuit 22 and recorded on the magnetic recording portion of the film 23 by the magnetic head 24. Then, it progresses to step S10. In step S10, it is confirmed whether or not the film winding is completed, and the process proceeds to step S11. In step 11, the film winding mechanism 27 stops winding the film 23, and the process proceeds to step S12. In the subroutine of step S12, the photographing information data recorded in the magnetic recording portion on the film 23 is stored in the storage circuit 18 from the CPU 11 and the process proceeds to step S13, and this sequence ends.

6 and 7 illustrate a magnetic recording method for magnetically recording photographed data on the magnetic recording portion of the film 23 in the above embodiment. According to this method, three kinds of states, that is, a magnetized state in the N direction, a magnetized state in the S direction and a non-magnetized state can be recorded in a magnetic recording portion as a magnetic recording medium on a film (not shown). Figure 6
As shown in, the output port OUT1 of the CPU 11 has
The input end of the buffer 28 is connected, and the output end of the buffer 28 is connected to one end of the operating coil of the magnetic recording head 24. The gap portion 24a of the magnetic recording head 24 is in contact with the magnetic recording portion of the film. CPU1 above
The input end of the buffer 29 is connected to the output port OUT0 of No. 1, and the output end of the buffer 29 is connected to the other end of the operating coil of the magnetic recording head 24. The neutral point of the operating coil of the magnetic head 24 is connected to GND.

In the magnetic information recording circuit thus constructed, the N-direction magnetization state is set to "1" and the S-direction magnetization state is set to "0" for recording in the magnetic recording portion on the film. When recording the state "1" in the magnetic recording portion on the film, an H (high level) signal is output from the output port OUT1 of the CPU 11 to the buffer 28, and the magnetic recording head 2 is output by the buffer 28.
4 is biased, and the current I1 flows through the operating coil 24b of the head 24 to the GND through the neutral point. Thereby, the gap portion 2 of the magnetic recording head 24 is
A magnetic flux is generated in 4a, and "1" which is the magnetization state in the N direction is recorded in the magnetic recording portion on the film.

Next, when "0", which is the magnetization state in the S direction, is recorded in the magnetic recording portion on the film, the CPU 1 mentioned above is used.
An H signal is output from the first output port OUT0 to the buffer 29, and the buffer 29 causes the magnetic recording head 2
4 is biased and a current of I0 in the opposite direction to I1 is passed through the neutral point in the operating coil of the head 24 through the neutral point.
Flow to D. Accordingly, a magnetic flux in the direction opposite to the magnetic flux due to the current I1 is generated in the gap portion 24a of the magnetic recording head 24, and the magnetic recording portion on the film has a magnetization state of "0" in the S direction. Will be recorded. The output ports OUT1 and OUT0 of the CPU 11 are also provided.
When neither H signal is output, no current flows through the actuating coil 24b of the magnetic recording head 24, so that no magnetic flux is generated in the gap portion 24a of the magnetic recording head 24 and the magnetic recording portion on the film is not generated. The magnetization states in the N and S directions are not recorded in the.

Where the above "1" and "0" magnetization states can be recorded by the output of the 1-bit output port, by using the 2-bit output port, the magnetization states of "1" and S in the N direction can be recorded. Since it can express three states of "0" which is the magnetization state of the direction and a neutral state which is not magnetized at all, by providing a state that is neither "1" nor "0", it functions as a free-running synchronization clock. , No external synchronization clock is required.

Explaining the magnetized state in the timing chart of FIG. 7, the CPU 11 outputs the output port OUT1 or OU at a constant timing time interval T.
An H signal having a time width of TON is output in a rectangular wave shape at T0.
Further, when the time during which no H signal is output from the output ports OUT1 and OUT0 is TOFF, "T = TON + T"
When the H signal output to OUT1 is “1” and the signal output to OUT0 is “0”, the CPU 11 outputs “1,0,1,1,0,
A data signal "0" is output to the output port.
When the data from the CPU 11 is "1", as shown in (a), the output port OUT1 becomes an H signal for 0 (low level), and when the data from the CPU 11 is "0", (b). As shown in, the output port OUT0 becomes the H signal.

FIG. 7C shows a current flowing from the buffers 28 and 29 to the actuating coil 24b of the magnetic recording head 24 by the signals from the OUT1 and OUT0.
I1 is represented as a positive current and I0 is represented as a negative current. That is, when the OUT1 of the data 1 is at the H level with reference to the 0 level (GND), the operating coil 24b has a positive rectangular wave-like waveform exceeding the positive saturation current level, and the OUT0 of the data 0 is obtained. Is at the H level, the operating coil 24b has a negative rectangular wave waveform exceeding the negative saturation current level.

As shown in FIG. 7D, the magnetization state of the magnetic recording portion of the film corresponds to FIG. 7C when the N magnetization state is the positive direction and the S magnetization state is the negative direction. hand,
When the current of the working coil 24b whose data is "1" is positive, a pulsed waveform which reaches a magnetic saturation value of positive N is obtained, and the current of the working coil 24b whose data is "0" is negative. At this time, the pulse-shaped waveform reaches the magnetic saturation value of negative S.

[0022]

According to the present invention, when photographing underwater with a camera capable of recording photographing information of the present invention, photographing information of water pressure and / or water depth data is recorded in a magnetic recording portion on a photographic film. By reading the water pressure and / or water depth data recorded in the magnetic recording area on the film with a stretcher at the time of printing, imprinting the image with the water pressure and / or water depth value at the same time as printing, and then observing the print , You can check the water pressure and / or water depth in the water you shot.

[Brief description of drawings]

FIG. 1 is a block diagram of the configuration of a camera capable of recording underwater imaging information according to an embodiment of the present invention.

FIG. 2 is a diagram showing a print screen in which a value of water depth, which is shooting information, is displayed on a screen taken underwater with the camera of the embodiment.

FIG. 3 is a diagram showing a print screen in which a value of water pressure, which is shooting information, is displayed on a screen underwater shot by the camera of the embodiment.

FIG. 4 is a block configuration diagram showing a specific configuration of the camera of the above embodiment.

5 is a flowchart showing a shooting sequence of the camera shown in FIG.

6 is an electric circuit diagram showing a configuration of a magnetic recording circuit in the camera of FIG.

7 is a timing chart of each part of the magnetic recording circuit of FIG.

[Explanation of symbols]

1, 11 ... CPU (recording control means) 4 ... detection means 7 ... shooting information recording means 22 ... magnetic information recording circuit (shooting information recording means) 23 ... magnetic Film having recording portion 24 Magnetic head (photographing information recording means)

Claims (1)

[Claims] 1. A camera capable of underwater photography and using a film having a magnetic recording portion as an information recording medium on a photographic film, a detection means for detecting water pressure and / or water depth, and a detection means for detecting the water pressure and / or water depth. Photographing information recording means for recording the water pressure data and / or water depth data as photographing information in the magnetic recording section, and photographing information recorded by the photographing information recording means,
A camera capable of recording underwater photography information, comprising: a recording control unit that records the captured image in association with it.