JPH11119324A - Camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a camera constituted so that the product's name of a photographic roll film is surely obtained without requiring the labor and time. SOLUTION: The bar code of a paster is read until the first frame of a film 4 is set in an exposure position, after the photographic roll film 3 is loaded in a film holder 5 and a film abbreviated name 23 as the product's name of the roll film corresponding to film sensitivity and the kind of film is retrieved from a film abbreviated name table in an EEPROM. When one corresponding film abbreviated name 23 exists, it is displayed by lighting. When plural corresponding film abbreviated names 23 exist, the film abbreviated name 23 is displayed by flickering. When the name 23 corresponds to the product's name of the loaded roll film, a DATA/ISO button 10 is depressed as it is. But, when the name 23 does not correspond to the product's name, an up-down dial 16 is turned to successively display other film abbreviated names 23 by flickering. At the time when the corresponding film abbreviated name 23 is displayed, the DATA/ISO button 10 is depressed. Thus, after the film abbreviated name 23 is established, a lighting display is executed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera using a photographic roll film, and more particularly to a camera for displaying the abbreviation of a product name of the photographic roll film.

[0002]

2. Description of the Related Art As a medium-sized camera using a photographic roll film represented by a 120-type brownie film, a 6 × 8 cm version of “Fuji GX680 Professional” (trade name) sold by the present applicant is available. Are known. This camera is provided with an automatic film feeding mechanism for automatically setting the first frame by detecting the reflectance of the light-shielding paper of the photo roll film and the film with a photo sensor in the film holder. Further, a liquid crystal display panel is provided on the upper surface of the film holder, and the number of frames to be photographed is displayed on the liquid crystal display panel.

On the other hand, the applicant uses a photographic roll film in which a bar code is provided on the surface of a joining tape for joining a light-shielding paper and a film, and uses a photo sensor to record film information such as film sensitivity recorded on the bar code. (Japanese Patent Application No. Hei 8-3).
No. 32496).

By the way, the main users of medium format cameras are professionals and high amateurs. Such a user is also sensitive to subtle differences in the degree of reflection, and thus often changes the brand of the photographic roll film according to the subject, for example, even if the reversal film has the same film sensitivity. This is because the film characteristics of the photographic roll film are slightly different depending on the brand, and some of them are suitable for photographing a person, and others are suitable for photographing a product.

Therefore, even if the photographing is performed while changing the film holder during the photographing, the memo holder provided on the back of the film holder is attached to the memo holder provided on the back of the film holder so that the product name of the photographic roll film loaded therein can be recognized. A piece of paper cut from the roll film packaging box is inserted.

[0006]

However, not only is the reminder means of the above-mentioned form troublesome, but also if the user forgets to insert a paper piece or remove the previously used paper piece, etc. In some cases, the product name of the roll film cannot be recognized, or a serious mistake may occur in that the loaded photographic roll film is mistakenly recognized as a photographic roll film of another product name and photographed.

SUMMARY OF THE INVENTION An object of the present invention is to provide a camera in which a product name of a photographic roll film can be surely recognized without trouble.

[0008]

In order to achieve the above object, a camera according to the present invention uses a photographic roll film on which film information is recorded, while the film is being conveyed until the end of the first frame film set. In a camera that reads information, a storage unit that stores a plurality of film abbreviations each representing a product name of a different photographic roll film, and a storage unit is searched based on the read film information, and a plurality of corresponding film abbreviations are found. If it is detected, a control means is provided for prompting the user to select and determine one film abbreviation from these.

The storage means and the control means are provided on a film holder detachably attached to the camera body.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A camera 1 according to an embodiment of the present invention.
As shown in FIG. 1, a film holder 5 for loading a photographic roll film 3 is detachably attached to a rear portion of the camera body 2. On the upper surface of the film holder 5, various operation buttons 7 to 12, a liquid crystal display panel 15,
An up-down dial 16 is provided.

In the lower part of the liquid crystal display panel 15, in order from the left, a data type 17, a camera illustration 18, and a photographing frame number 1 of a film counter to be photographed on the edge of the film 4.
9, 120, and 220, and a screen size 21 that changes when a mask is inserted are displayed. The data type 17 includes AV / TA (aperture priority AE / shutter speed priority AE), date, time, frame number, and the like.

In the upper part of the liquid crystal display panel 15, in order from the left, AUTO indicates that the film sensitivity is automatically set.
22, a film abbreviation 23 that represents the product name of the photographic roll film 3 with an alphabetic abbreviation, and IS the film sensitivity
The ISO sensitivity 24 (see FIG. 2) indicated by O or the total number of shots is displayed. As shown in FIG. 2, the film abbreviation 23 is not displayed while the ISO sensitivity 24 and the character 25 of "ISO" are displayed. Conversely, while the film abbreviation 23 is displayed, the ISO sensitivity 24, the character 25, and the like are displayed. The total shot number is not displayed. When the total shot number is displayed, the display of the film abbreviation 23 disappears temporarily.

The total number of shots is calculated by calculating the cumulative number of times the film is fed each time the film 4 is fed by one frame.
It is displayed in units of 00 digits, and is used as a measure of overhaul. Further, the total shot number is displayed only when the total shot number button 7 is pressed,
Normally, the ISO sensitivity 24 of the film 4 is displayed.
Also, AV / TA to be imprinted on the edge of the film 4 with 7 digits including 4 digits of the film abbreviation 23 and 3 digits of the ISO sensitivity 24
Is also displayed.

The total shot number button 7 is set to 1
Each time the button is pressed, the camera illustration 18 displayed on the liquid crystal display panel 15 blinks in the order of lens → main body → film holder, and the total number of shots corresponding to each part is sequentially displayed instead of the ISO sensitivity 24. ,
The display returns to the ISO display 24 in about 3 seconds.

The LCD light button 8 turns on the backlight of the liquid crystal display panel 15 for about 5 seconds each time the button is pressed.
If you hold it down for more than a second,
Turns off when released. When the frame number button 11 is pressed while the LCD light button 8 is pressed, the film abbreviation 23 and the ISO sensitivity 24 can be displayed alternately. During the display of the film abbreviation 23, a selection operation described later is performed to turn the LCD light button 8 on. When pressed, the film abbreviation 23 is determined.

The four buttons 9 to 12 are arranged below the opening / closing lid 26 so as not to be inadvertently pressed during photographing or the like. Each time the date button 9 is pressed once, the date imprint mode is changed, for example, from “year / month / day” → “hour / minute” →
"Year / Month / Day / Minute" → "Month / Day / Minute" → "Month / Day / Minute / Minute" → "Sun / Month / Year" / "Sun / Month / Year / Minute" → "None" → "Year / Month / Day"

Each time a so-called chopping operation is performed, in which the DATA / ISO button 10 is pressed once shortly, data to be printed on the edge of the film 4 is sequentially displayed in the above-mentioned seven digits.
When the DATA / ISO button 10 is continuously pressed for 2 seconds or more, the mode is set to the ISO correction mode.
The letter "O" 25 flashes. When the DATA / ISO button 10 is pressed when there are a plurality of film abbreviations 23, the film abbreviation 23 is determined.

The frame number button 11 displays a frame number, for example, "ABC001" for the first frame,
In the case of the second frame, whether or not to print “ABC002” on the edge of the film 4 is switched each time the button is pressed once. When the frame number button 11 is pressed to enter the frame number imprinting mode, “001” is instantaneously displayed instead of the ISO sensitivity 24. The first frame set button 12 automatically sets the first frame of the film 4 by loading the photo roll film 3 into the film holder 5 and pressing it.

The film abbreviation 23 is shown in Table 1 below.
There is something like that shown in

[0020]

[Table 1]

A plurality of products exist in the photographic roll film 3 for the same film sensitivity, and the film abbreviations 23 representing the product names naturally exist as many as the number of products as shown in Table 1. By the way, roll film for photography 3
A bar code is provided on the surface of a bonding tape called a paster for bonding the light-shielding paper and the film 4 to each other, and the bar code is attached to the film holder 5 during the film feeding until the first frame of the film setting. The film sensitivity, negative color, and reversal are discriminated by reading with the photo sensor inside. However, it does not detect the product name of the photographic roll film 3.

When there are a plurality of film abbreviations 23 having the same film sensitivity, the film abbreviation 23 is blinked to notify the user that another film abbreviation candidate exists. If the film abbreviation 23 initially flashed and displayed matches the film abbreviation representing the product name of the loaded photo roll film 3, D is displayed as it is.
The ATA / ISO button 10 is pressed, and if they do not match, the up / down dial 16 is rotated.

When the up-down dial 16 is turned, another film abbreviation 23 corresponding to the same film sensitivity is blinked in sequence. When the film abbreviation 23 indicating the product name of the photo roll film 3 is displayed, the operation of the up / down dial 16 is stopped, and the DATA / ISO
When the button 10 is pressed, the blinking film abbreviation 23 is determined and the display is turned on. If the corresponding film abbreviation 23 is not displayed even if the up / down dial 16 is operated, the film abbreviation 23 will not be displayed if no operation is performed and, for example, three seconds have elapsed.
Is not displayed, and the ISO sensitivity 24 is displayed. Also,
The film abbreviation 23 and the ISO sensitivity 24 are not displayed at the same time.

In FIG. 3, which shows the electrical configuration of the film holder 5, a CPU 30 for controlling the entire film holder is mounted on the circuit board of the film holder 5, and in addition to the liquid crystal display panel 15, LCD panel 15
A backlight drive circuit 32 that controls the backlight that illuminates the backlight from behind, and a bar that reads film information such as film sensitivity from a paster bar code based on a signal from a photo sensor 33 provided in the film feed path. The code reading circuit 34 detects the film feed amount and
A film feed amount detection circuit 35 composed of an encoder or the like used for frame feed control, a feed motor drive circuit 36 for controlling the drive of the feed motor, and a data imprint control circuit for imprinting various data on the edge of the film 4 37, a buzzer circuit 38 for sounding a buzzer for warning when the number of recordable images becomes the last one, a film abbreviation table 39a storing the film abbreviation 23, and various sequence programs. EEPROM 39 stored
A switch group 40 provided below each of the buttons 7 to 12 and the up / down dial 16, and an interface 41 for connecting the CPU 30 to the CPU of the camera body 2 when the film holder 5 is mounted on the camera body 2. It is connected.

In order to use the camera 1 constructed as described above, first, the photographic roll film 3 is placed on the film holder 5.
Is loaded. Take out the middle frame from the film holder 5 and
After the light-shielding paper is set in the shape, the middle frame is returned to its original position, the back cover is closed, and then the 1st frame set button 12 is pressed, the film feeding is started. When the paster reaches the position of the photo sensor 33 provided in the middle frame, the bar code of the paster is read by the bar code reading circuit 34, and this read signal is sent to the CPU 30. At the same time, a predetermined amount of feed control is performed from the time when the photo sensor 33 detects the paster, and the first frame of the film 4 is set to the exposure position.

After the CPU 30 detects film information such as discrimination between negative color and reversal and film sensitivity based on a read signal from the bar code reading circuit 34, the CPU 30 displays the film sensitivity on the liquid crystal display panel 15 in an ISO manner.
As shown in the flowchart of FIG.
Is searched for the corresponding film abbreviation 23 from the film abbreviation table 39a.

The film 4 of the loaded photographic roll film 3 is, for example, a negative color film having a film sensitivity of ISO10.
In the case of 0, since the corresponding film abbreviation 23 is not in the film abbreviation table 39a, the ISO sensitivity 24 is displayed without displaying the film abbreviation 23. Also, film 4
However, for example, the reversal film has a film sensitivity of ISO
In the case of 64, since there is one corresponding film abbreviation 23, this film abbreviation "RTP" is displayed on the liquid crystal display panel 15.
Is lit.

If the film 4 is, for example, a reversal film and the film sensitivity is ISO100, there are four film abbreviations 23 in the film abbreviation table 39a. The film abbreviation "RAP" at the address of the number flashes on the liquid crystal display panel 15 to urge the user to determine the film abbreviation 23. The user looks at this display, and if the blinking film abbreviation "RAP" is the corresponding film abbreviation 23, DATA / IS
The O button 10 is pressed. As a result, the film abbreviation “RAP” becomes the film abbreviation 23 and the liquid crystal display
Is lit.

The flashing film abbreviation "RA"
If "P" is different from the film abbreviation 23 indicating the product name of the photo roll film 3, the user rotates the up-down dial 16. Up-down dial 16
Is rotated in one direction, the film abbreviation 23 becomes "RA".
P "→" RDP2 "→" RA "→" RD2 "→" RA
P ”. Up-down dial 1
When the film 6 is rotated in the reverse direction, the film abbreviation 23 changes in the reverse order of the above order.

The user loads the loaded photo roll film 3
Abbreviated film name 23 indicating the product name of, for example, "RDP2"
Is displayed, the turning operation of the up / down dial 16 is stopped, and the DATA / ISO button 10 is pressed.
As a result, the selected film abbreviation "RDP2" is lit and displayed as the film abbreviation 23. If there is no corresponding film abbreviation 23, for example, after elapse of 3 seconds without any operation, the film abbreviation 23 is not displayed and the ISO sensitivity 24 is displayed.

When the user wants to display or change the film abbreviation 23 by himself, he presses the frame number button 11 while pressing the LCD light button 8. This allows
The display of the film abbreviation 23 and the ISO sensitivity 24 can be switched. When the desired film abbreviation 23 is displayed by operating the up / down dial 16 while the film abbreviation 23 is displayed, the LCD light button 8 is pressed. , The film abbreviation 23 is determined.

Next, the user pulls out the lid of the film holder 5, decides framing, etc., and performs a release operation.
The subject image is exposed on the film 4 of the first frame. Thereafter, one-frame feeding is performed, and the film 4 of the second frame is automatically set at the exposure position, so that the photographing can be performed similarly. When the film abbreviation 23 is lit, the product name of the photographic roll film 3 loaded in the film holder 5 can be clearly identified.
It is possible to reliably perform shooting in accordance with the film characteristics without any hesitation during shooting, for example, when the negative color and the reversal are separately shot while replacing the camera.

When the number of frames that can be photographed becomes the last one, the buzzer circuit 38 operates to sound the buzzer,
Call attention to the user. When you have finished shooting the last frame,
Automatic winding is performed, and the user immediately starts film holder 5.
, The photographed roll film 3 can be collected.

In the embodiment described above, an example is described in which a bar code is used as a means for recording film information. However, the present invention is not limited to this. For example, a magnetic recording layer may be used. Further, since the film abbreviation table of the EEPROM can be updated, when a new photo roll film is released, it is preferable to appropriately update the data of the film abbreviation table.

[0035]

As described above, according to the camera of the present invention, when there are a plurality of film abbreviations corresponding to the film information read from the photographic roll film, one of these is abbreviated. A display prompting the user to select and decide is made, so that the abbreviation of the film can be determined quickly, and the trouble of determining the abbreviation of the film by a separate operation can be omitted, and the product name of the loaded photo roll film can be changed. You will surely understand. As a result, it is possible to prevent the product name of the loaded photographic roll film from becoming unrecognizable during photographing, or to prevent a mistake such as mistaking the product name for photographing.

When there are a plurality of film abbreviations corresponding to the film information, the display prompting the user to select one is displayed on the film holder side detachable from the camera body. Even in the case where the photo roll films are loaded into the film holders and the film is exchanged between these film holders, the photograph roll film having the film characteristics suitable for each photographing purpose is surely selected and photographed. be able to.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a main part of a camera according to the present invention.

FIG. 2 is an explanatory diagram showing a liquid crystal display panel on which ISO sensitivity is displayed.

FIG. 3 is a block diagram showing an electrical configuration of the film holder.

FIG. 4 is a flowchart showing a sequence of a film abbreviation display process.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Camera 3 Photo roll film 4 Film 5 Film holder 7-12 Button 15 Liquid crystal display panel 16 Up / down dial 23 Film abbreviation 39 EEPROM 39a Film abbreviation table

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Tokuji Sato 3-13-45 Izumi, Asaka-shi, Saitama Fuji Photo Film Co., Ltd.

Claims (2)

[Claims] 1. A camera for reading film information while feeding a film up to the end of the first frame, using a photographic roll film on which film information is recorded, wherein each product name represents a different photographic roll film. A storage unit storing a plurality of film abbreviations and a storage unit are searched based on the read film information. If a plurality of the corresponding film abbreviations are detected, one of the film abbreviations is detected. A camera for performing a display prompting selection and determination. 2. A camera according to claim 1, wherein said storage means and control means are provided on a film holder detachably attached to the camera body.