JPH09211527A - Camera capable of recording data - Google Patents

Abstract

PROBLEM TO BE SOLVED: To warn that information specific to a negative film is set when a positive film is loaded on a camera by providing a camera with a warning means performing warning when the loading of the positive film is discriminated by a negative/positive discriminating means and the setting of the information specific to the negative film is decided by the information deciding means. SOLUTION: Whether a film loaded on the camera is the positive film or not is discriminated based on the reading result of a bar code pattern provided on a cartridge 32. When the positive film is loaded and the number of simultaneous printing is set, or when information instructing various kinds of data to be printed on a surface is set, warning display is performed on an LCD for recording the information and a finder LCD before the number of the simultaneous printing and the various kinds of the data are recorded on the magnetic recording part F1 of the film in order to draw the attention of a user. Thus, printing error can be previously prevented.

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 on a film information indicating whether or not date and time information is printed on photographic paper, and date and time information for printing on photographic paper.

[0002]

2. Description of the Related Art A camera equipped with an imprinting device for optically imprinting date / time information such as year / month / day / hour / minute indicating a photographing time on a film has been commercialized. In addition, the camera is equipped with a magnetic head to record shooting-related information such as exposure information in addition to the date and time information in the magnetic recording section of the film, and the film sensitivity, the number of shots, and the film that are pre-recorded in a predetermined portion of the film cartridge. A camera that can read out the type has been proposed (for example, USP4
864332, JP-A-4-246632, Japanese Patent Publication No. 6-64288).

[0003]

Since a larger proportion of people use negative films than positive films, cameras have many functions provided on the assumption that negative films are used. For example, a camera is known that can record the number of simultaneous prints indicating the number of prints of the same captured image in the magnetic recording portion of the film. However, for positive film, it is set on a slide mount after development and projected by a slide projector or the like. In many cases, printing on photographic paper is extremely rare.

Conventionally, when the number of simultaneous prints is set on the camera side, even if a positive film is loaded, the number of simultaneous prints is recorded on the film. Therefore, when the film is brought into the laboratory, the photographic paper is printed. It may be mistaken for printing the set number of sheets. A similar problem may occur when it is set to print date and time information on the surface of photographic paper. With negative film, date and time information can be printed on photographic paper by a print instruction of date and time information, but with positive film, such print instruction of date and time information does not make sense and causes confusion in the laboratory.

Further, in a conventional camera capable of setting the number of simultaneous prints, it is general to display the set number of simultaneous prints on a display such as a top surface of the camera. Since the number of prints is displayed, the user who sees this display may misunderstand that the negative film is loaded.

It is an object of the present invention to provide a camera which gives a warning when the information specific to the negative film is set when the positive film is loaded in the camera.

[0007]

According to a first aspect of the present invention, there is provided information determining means for determining whether or not information specific to a negative film is set, and whether the film loaded in the camera is a negative film or a positive film. Negative / positive determination means for determining whether the film is a film, and when it is determined that a positive film is loaded by the negative / positive determination means, and when it is determined by the information determination means that information specific to the negative film is set. And a warning unit for issuing a warning. According to a second aspect of the present invention, in the camera of the first aspect, the information is a simultaneous print number indicating the number of prints of the same captured image. According to the invention of claim 3, in the camera of claim 2, the display means is capable of displaying at least one of date and time information and shooting-related information, and the warning means is an index indicating that the positive film is loaded. And displaying an index indicating that the simultaneous print number is set on the display means to issue a warning. According to a fourth aspect of the present invention, in the camera of the first aspect, the information is front surface print instruction information indicating that the data is printed on the front surface of the printing paper. According to a fifth aspect of the present invention, in the camera according to the fourth aspect, the data to be printed on the front surface is date / time information regarding a date / time of photographing or photographing-related information related to photographing. According to a sixth aspect of the present invention, in the camera of the fifth aspect, the display unit is capable of displaying at least one of date and time information and shooting-related information, and the warning unit is an index indicating that the positive film is loaded. , An indicator indicating that the front side print is set is displayed on the display unit to issue a warning. According to a seventh aspect of the present invention, in the camera according to any one of the first to sixth aspects, the camera is loaded with a film cartridge including a recording member on which at least information for identifying a negative film or a positive film is recorded.
The camera includes recording information detection means for detecting information recorded on the recording member, and the negative / positive determination means,
It is characterized in that a negative film or a positive film is discriminated based on the detection result of the recording information detecting means.
According to an eighth aspect of the present invention, in the camera of the seventh aspect, the recording member is a data disc that rotates integrally with a spool shaft of the film cartridge, and the data disc identifies a negative film or a positive film. A bar code pattern in which information is recorded is provided.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a perspective view of the camera of this embodiment. In FIG. 1, reference numeral 1 is a camera body, 2 is a release button, and 3 is a viewfinder. Reference numeral 4 denotes a shooting information setting button for setting a shooting mode, an exposure mode, etc., including a shooting mode setting switch 4a for setting a shooting mode, an exposure setting switch 4b for setting a shutter speed and an aperture value, and photometry for setting a metering mode. It is composed of a mode setting switch 4c. The shooting modes that can be set with the shooting mode setting switch 4a include, for example, a program mode, a shutter priority mode, an aperture priority mode, and a manual mode, and the metering modes that can be set with the photometric mode setting switch 4c include, for example, split metering. Modes, center-weighted metering mode and spot metering mode.

Reference numeral 5 is a photographing information LCD for displaying the photographing information set by the photographing information setting button 4, and 6 is a mode setting switch for setting information to be recorded in the magnetic recording portion F1 of the film F. The data set by the mode setting switch 6 includes shooting-related information such as the number of simultaneous prints, title number, shooting screen size, and shutter speed, and detailed setting of date and time information (for example, changing the display order of year and hour). Is also performed by the mode setting switch 6.

An information recording LCD 7 displays the data set by the mode setting switch 6. Reference numeral 8 is a select switch for selecting a part of the information displayed on the information recording LCD 7 for correction, and 9 is an adjust switch for correcting the information selected by the select switch 8.

Reference numeral 10 denotes a command dial for selecting various functions, which is operated together with the photographing information setting button 4 and the mode setting switch 6. For example, if the command dial 10 is operated while pressing the shooting information setting button 4, the shooting mode, exposure mode, etc. are set, and if the command dial 10 is operated while pressing the mode setting switch 6, recording is performed on the magnetic recording portion F1 of the film F. The information to be set is set. Reference numeral 11 is a power switch for switching whether or not a power supply voltage is supplied to each part of the camera.

FIG. 2 is a perspective view showing the schematic structure of the inside of the camera. The leading end portion of the film F is the take-up spool 2
1 shows the state of being wound up. In FIG. 2, reference numeral 22 is a taking lens, 23 is a lens driving unit for driving the taking lens 22, and the taking lens 22 is provided inside thereof.
An encoder (not shown) that generates a signal according to the amount of movement of is provided. Reference numeral 24 is a lens shutter, 25 is a photometric sensor for measuring subject brightness, 26 is a light receiving lens for the photometric sensor 25, 27 is a finder 3 and a focus detection sensor 27.
It is a finder unit that stores a. 28 is a photoreflector for optically detecting the position of the perforation F2 of the film, 29 is a film feeding motor for feeding the film by rotating the take-up spool 21, and 30 is a deceleration for decelerating the rotation of the film feeding motor 29. The gear unit 31 is a rewinding unit that controls rewinding of the film.

Reference numeral 32 is a film cartridge (hereinafter referred to as a cartridge) having a data disk 32a on which a bar code pattern BP is drawn. A magnetic recording portion F1 for recording date and time information and shooting-related information is provided on the lower edge side of the film F housed in the cartridge 32, and the perforation F for each shooting frame is provided on the upper edge side.
Two 2's are formed. In addition to the information displayed on the information recording LCD 7, the magnetic recording portion F1 also records information automatically set by the camera.

Reference numeral 33 is a photo reflector for irradiating the bar code pattern BP with light and receiving the reflected light, 34 is a magnetic head for writing / reading various information to / from the magnetic recording portion F1 of the film F, and 35 is magnetic recording. It is a pad that sometimes brings the magnetic head 34 and the film into close contact with each other. The pad 35 is formed of a resilient material with a central portion formed in a concave shape in order to enhance the adhesion.

FIG. 3 is a block diagram of the control system of the camera of this embodiment. In FIG. 3, reference numeral 51 is a CPU that controls various operations of the camera, 52 is a clock circuit that measures the date and time according to a clock (not shown), and outputs date and time information, 53
Is a RAM for storing various information to be recorded in the magnetic recording portion F1 of the film F. Reference numeral 54 is an encoder for converting various information for recording on the film F into a signal for driving a head, and 55 is a buffer for temporarily storing the signal converted by the encoder 54. The output of the buffer 55 is amplified by a head amplifier (not shown) and magnetically recorded on the film F by the magnetic head 34.

Reference numeral 56 is a head drive circuit for driving the magnetic head 34, and 57 is a motor drive circuit for driving the film feeding motor 29. Reference numeral 58 denotes a cart lid switch that detects the open / closed state of the lid of the cartridge chamber in which the cartridge 32 is loaded, and turns on when the lid is closed. Reference numeral 59 is a release switch that is turned on by fully pressing the release button 2, 60 is a half-press switch that is turned on by half-pressing the release button 2, and 61 is pulse generation that generates a number of pulses according to the operation amount of the command dial 10. Reference numeral 62 is an EEPROM for storing information about the film read from the bar code pattern.

FIG. 4 is a diagram showing a data format of various information recorded in the magnetic recording portion F1 of the film. In the magnetic recording unit F1, the start command, date data (date and time information), shooting data (shooting related information), and end command are recorded in this order. The date data (date and time information) recorded in the magnetic recording unit F1 is the year, month, day, and
It is composed of hour and minute data and information indicating whether or not to print these data on photographic paper. Magnetic recording unit F1
The shooting data (shooting-related information) recorded in (1) includes, for example, the following 12 data and information indicating whether or not to print these data on photographic paper.

Title number Focal length of lens used F release of lens used F value Film sensitivity Aperture value Shutter speed Exposure compensation value Metering mode Whether strobe is used Luminance value Simultaneous print number Screen size These information related to recording LCD 7 Is displayed on the LCD 5 for shooting information.

The date data and the photographing data are not limited to those mentioned above. Also, the above-mentioned title number indicates the identification number corresponding to the specific character string information (for example, "Happy Birthday") to be printed over the captured image when the captured image is printed on photographic paper. Therefore, the title number itself or the character string information corresponding to the title number may be recorded on the film.

5 and 6 are views showing display examples on the information recording LCD 7, and FIG. 5 shows a state in which all the display segments are lit. The information recording LCD 7 is provided with display areas A to E as shown in the figure. The display area A displays year, month, day data and film type information, and the display area B displays date and time information. Data and the number of simultaneous prints are displayed. In the display area C, the minute data and the title number of the date and time information are displayed in the display area D.
In the display area E, information indicating whether or not to print on photographic paper is displayed. For example, when "PRINT" is displayed in the display area E, it indicates that printing is performed on photographic paper.

FIG. 6A shows a display example of the information recording LCD 7 when the power of the camera is turned off.
It shows a display example of date and time information corresponding to "minutes". FIG.
When the user operates the command dial 10 while pressing the mode setting switch 6 while (a) is displayed, the information recording LCD 7 displays “year, month, day,
"Hour, minute" → "month, year, day, hour, minute" → "day, month, year,
"Hour, minute" → "year, month, day,-,-" → "month, year, day,
−, − ”→“ day, month, year, −, − ”→“ −, −, −,
-,-"Is switched in this order. Of these date / time information print modes, in the "-,-,-,-,-" mode,
The above-mentioned "PRINT" is not displayed, but "PRINT" is displayed in the other modes.

When the select switch 8 is operated while the date and time information is displayed as shown in FIG. 6A, the correction point of the date and time information is set. For example, if the correction portion is made to blink, and the blinking portion is moved to the left → the right and the upper portion → the lower portion by 2 digits each time the select switch 8 is pressed, the correction portions of all the digits indicating the date and time information are corrected. Can be specified.

On the other hand, when the power switch 11 is on,
When the user operates the command dial 10 while pressing the mode setting switch 6, the number of simultaneously printed sheets can be set within the range of 1 to 99 according to the operation amount of the command dial 10. The number of simultaneous prints is shown in Fig. 6 (b).
Displayed in display area B as shown in, the default value is 1.
It is.

When the power switch 11 is on,
When the user operates the command dial 10 while pressing the select switch 8, the title number can be set in the range of 0 to 99 according to the operation amount of the command dial 10. The title number is displayed in the display area C as shown in FIG. 6C, and the default value of the title number is 0 (no title number is set). For example, if you use negative film, specify printing on photographic paper, and select one of the title numbers, the character string information corresponding to the selected title number will be displayed on the front surface of the photographic paper (the surface on which the captured image is printed). ) Is printed. The character string information set as the title number may be any character string, for example, character string such as "Merry Christmas" as the title number 1, "Happy New Year" as the title number 2, and "Happy Birthday" as the title number 3. Information is considered.

When the power switch 11 is turned on,
When the user operates the command dial 10 while pressing the adjustment switch 9, three types of screen sizes of H (high-definition size), P (panorama size), and C (normal size) are selected according to the operation amount of the command dial 10. You can set either. Symbol H indicating the shooting screen size,
P and C are displayed in the display area E.

7 and 8 are flowcharts showing the processing operation of the CPU 51 shown in FIG. 3, and the operation of the present embodiment will be described below based on this flowchart. Note that C
It is assumed that the PU 51 performs the processing of FIGS. 7 and 8 at predetermined time intervals, for example, when the power switch 11 is turned on.

In step S1 of FIG. 7, the cartridge 3
It is determined whether or not the lid of the cartridge chamber in which 2 is loaded is closed, and while the lid is open, the process stays in step S1.
When the lid is closed, it is determined that the cartridge 32 is loaded, and the process proceeds to step S2. In step S1, when the cart cover switch 58 is turned on, it is determined that the cover is closed.

In step S2, the bar code pattern BP provided on the cartridge 32 is read. More specifically, the data disk 32a of the cartridge 32
While rotating, the photoreflector 33 emits light toward the barcode pattern BP, and the reflected light is received to read the barcode pattern BP. Then, information such as the film sensitivity, the number of shootable images, and the film type is extracted from the read information and stored in the EEPROM 62.

In step S3, the film feeding motor 29 is driven through the motor drive circuit 57 to start film winding (auto loading). Step S4
Then, while the film is being wound up, the position of the perforation F2 is detected by the photo reflector 28,
It is determined whether the leading frame of the film has reached the exposure position (aperture position). When the leading frame of the film has not reached the exposure position, the process remains in step S4, and when it reaches, the process proceeds to step S5. In step S5, the film feeding motor 29 is stopped to stop the film winding. In step S6, the half-push switch 60
Is turned on. If it is turned off, the process stays in step S6, and if turned on, the process goes to step S7.

In step S7, it is determined whether the film loaded in the camera is a positive film. Here, it is determined whether or not the film is a positive film based on the information of the barcode pattern read in step S2. If the positive film is loaded, the process proceeds to step S8, and it is determined whether the simultaneous print number is set. If the simultaneous print number is not set, the process proceeds to step S8A, and it is determined whether or not the data to be printed on the front surface of the printing paper is set. When step S8 or step S8A is affirmed, the process proceeds to step S9 to display a warning on the information recording LCD 7.

FIG. 9 is a diagram showing an example of a warning display. In the display area A of the information recording LCD 7, the characters "SLIdE" indicating that a positive film is loaded are displayed, in the display area B, the currently set number of simultaneous prints is displayed, and in the display area E. Indicates that the front side printing of various data on photographic paper is set.
The letter "T" is displayed. In addition, these characters may be made to blink, or an alarm may be sounded together with the display in order to call attention to the user.

The warning may be given by using a display device other than the information recording LCD 7, for example, the display of the finder LCD provided in the finder 3 may be changed to give the warning. FIG. 10A shows an example in which all the display areas of the finder LCD provided in the finder are turned on. As shown in the figure, the rangefinder (focus detection) range, focus display, metering mode, exposure mode, shutter speed, aperture, exposure correction value, and speedlight are displayed on the finder LCD in order from the left. Then, when performing the process of step S9 in FIG. 7, instead of displaying the shutter speed, for example, as shown in FIG. 10B, the characters “SLd” indicating that the positive film is loaded are displayed. And give a warning. Further, the display of FIG. 10 (b) may be blinked.

When the process of step S9 of FIG. 7 is completed or when the determination of step S7, S8 or S8A is negative, the process proceeds to step S10 of FIG. In step S10, the photometric sensor 25 and the focus detection sensor 27
a and the lens drive unit 23 are driven to perform photometric processing and focus adjustment information detection processing. In step S11,
It is determined whether or not the release switch 59 is on, and while it is off, the process stays in step S11, and when it is on, step S1
Proceed to 2. In step S12, a known exposure process is performed. That is, the taking lens 22 is driven by the lens driving unit 23 based on the detection result of the focus adjustment information, and the aperture amount of the diaphragm and the opening / closing of the shutter are controlled according to the brightness obtained by the photometric sensor 25.

Next, in step S13, the film feeding motor 29 is driven through the motor drive circuit 57 to start film winding. Next, in step S14, the magnetic head 34 is driven while the film is being wound, and the magnetic recording portion F1 of the film has a start command → date data (date / time information) → shooting data (shooting related information) as shown in FIG.
→ Record data in order of end command.

Next, in step S15, it is determined whether or not the winding of one frame is completed. If the winding is completed, the process returns to step S14, and when the winding is completed, step S1
Proceed to 6. In step S16, the photo reflector 28 detects the perforation F2 to determine whether the winding is completed.

In step S16, it is determined whether or not unexposed frames remain on the film. If there are unexposed frames, the process proceeds to step S6. If no unexposed frames remain, the process proceeds to step S17. . In step S17,
The film feeding motor 29 is driven via the motor drive circuit 57 to start film rewinding. At the same time, the photo reflector 28 detects the perforation F2,
The rewinding process is continued until the perforation F2 is no longer detected, that is, until the leading end of the film is housed inside the cartridge 32, and when the leading end of the film is housed inside the cartridge 32, the processes of FIGS. To do.

FIG. 11 is a diagram for explaining the processing contents of step S14 in FIG. 8, in which the information recording LCD 7 is displayed, the surface of the printing paper is printed, and the printing paper is printed in accordance with the mode selected by the user. It shows how the print on the back changes. LC for information recording as shown
While the same information as the information displayed on D7 is printed on the front side of the photographic paper, on the back side of the photographic paper, all the date and time information or the shooting-related information actually recorded on the film (hereinafter, full (Called data) is printed. The printing of full data on the back side may be forcibly set by the camera side regardless of the user's intention, or may be set or not set by the user's intention. In any case, the information instructing to perform the back side printing or the information instructing not to perform the back side printing may be recorded in an appropriate area of the magnetic recording portion of the film.

Although FIG. 11 shows an example in which only one of the date information and the shooting-related information is printed in full data on the back side of the printing paper, both information may be printed in full data. .

As described above, in the present embodiment, it is determined whether or not the film loaded in the camera is a positive film based on the reading result of the bar code pattern provided in the cartridge 32. If a positive film is loaded and the number of simultaneous prints is set, or if the instruction information to print various data on the front side is set, before the simultaneous print number and various data are recorded in the magnetic recording unit F1 of the film. , Information recording LCD 7 and finder LCD
A warning is displayed on the screen to alert the user. This allows
There is no possibility that the number of simultaneous prints and print information of various data will be recorded on the film against the intention of the user, and a print error can be prevented.

In the above-mentioned embodiment, 1 is set as the photographing data.
Although an example of recording two types of shooting data on a film has been described, the types of shooting data to be recorded on a film are not limited to those in the above-described embodiment. The data format recorded on the film is not limited to that shown in FIG. Further, in the above-mentioned embodiment, the example in which the date and time information and the photographing information are magnetically recorded on the film has been described, but the method may be recorded by a method other than the magnetic method. Both may be used for recording. Step S in FIG.
8 and S8A may be executed independently. In the present invention, the setting information is not limited to the above embodiment as long as the warning is issued when the information unique to the negative film is set while the positive film is loaded. Further, it is not limited to a mere warning, and release may be prohibited or information writing may be prohibited.

In the embodiment configured as described above, the magnetic head 34 serves as the recording means, and step S7 in FIG.
Is the negative / positive determination means, the mode setting switch 6 and the command dial 10 are the setting means, steps S8 and S9 of FIG. 7 are the warning means, the information recording LCD 7 is the display means, and the photo reflector 33 is the recorded information detection means. Corresponds to each.

[0042]

As described in detail above, according to the present invention, when the number of simultaneously printed sheets, print data and the like are set in a state where the positive film is loaded in the camera, that is, the information unique to the negative film is displayed. Since a warning is issued when the setting is made, the possibility that the setting information for the simultaneous print number and the data print is recorded on the film against the intention of the user is reduced. In other words, when using a positive film, it is common to print the shot image on photographic paper and not to print the front or back of various data, but set the number of simultaneous prints and the data print instruction. In such a case, the warning is once issued to call attention to the user, so that erroneous information is not recorded on the film, and a printing error can be prevented.

[Brief description of drawings]

FIG. 1 is a perspective view of a camera according to the present embodiment.

FIG. 2 is a perspective view showing a schematic structure inside a camera.

FIG. 3 is a block diagram of a control system of the camera of this embodiment.

FIG. 4 is a diagram showing a data format of various information recorded in a magnetic recording portion of a film.

FIG. 5 is a diagram in which all display segments in the information recording LCD are turned on.

FIG. 6A is a display example of an information recording LCD when the power is off, and FIG. 6B is a display example of the number of simultaneously printed sheets when the power is on.
FIG. 6C is a diagram showing a display example of title numbers when the power is turned on.

7 is a flowchart showing a processing operation of the CPU shown in FIG.

FIG. 8 is a flowchart following FIG. 7;

FIG. 9 is a diagram showing an example of a warning display.

10A is a view in which all display segments in the finder LCD are turned on, and FIG. 10B is a finder LCD.
FIG. 6 is a diagram showing an example of the warning display of FIG.

FIG. 11 is a diagram for explaining the processing content of step S14 of FIG.

[Explanation of symbols]

 4 Shooting information setting button 5 LCD for shooting information 6 Mode setting switch 7 LCD for information recording 8 Select switch 9 Adjust switch 10 Command dial

Claims (8)

[Claims] 1. An information determining means for determining whether or not information specific to a negative film is set, a negative / positive determining means for determining whether a film loaded in a camera is a negative film or a positive film, and the negative / positive determination. And a warning unit for issuing a warning when it is determined by the means that the positive film is loaded and when the information determination unit determines that the information unique to the negative film is set. A camera that can record data. 2. The camera according to claim 1, wherein the information is the number of simultaneous prints that represents the number of prints of the same captured image. 3. The camera according to claim 2, further comprising a display unit capable of displaying at least one of date and time information and shooting-related information, wherein the warning unit is an index indicating that the positive film is loaded, and A camera capable of data recording, characterized in that an indicator indicating that the number of simultaneous prints is set is displayed on the display means to give a warning. 4. The camera according to claim 1, wherein the information is front surface print instruction information indicating that data is to be printed on the front surface of photographic paper. 5. The camera according to claim 4, wherein the data to be printed on the front surface is date / time information regarding a date / time of photographing or photographing related information relating to photographing. 6. The camera according to claim 5, further comprising a display unit capable of displaying at least one of date and time information and shooting-related information, wherein the warning unit is an index indicating that the positive film is loaded, and A camera capable of data recording, characterized in that an index indicating that the front surface print instruction information is set is displayed on the display means to issue a warning. 7. The camera according to claim 1, wherein the camera is loaded with a film cartridge including a recording member in which at least information for identifying a negative film or a positive film is recorded. A recording information detecting means for detecting the information recorded on the recording member, wherein the negative / positive determining means determines whether the film is a negative film or a positive film based on the detection result by the recording information detecting means. A camera that can record data. 8. The camera according to claim 7, wherein the recording member is a data disc that rotates integrally with a spool shaft of the film cartridge, and the data disc has information for identifying whether the film is a negative film or a positive film. A camera capable of data recording, characterized in that a recorded barcode pattern is provided.