JP2002214682A - Camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To display the number of unexposed frames where photographing is performed in an ordinary photographing mode and the number of unexposed frames where photographic is performed in a half image plane photographing mode. SOLUTION: This camera using film whose image plane position is previously regulated with respect to a specified perforation is equipped with a image plane photographic mode switching means capable of switching a photographic mode to the ordinary photographic mode in which the image plane is exposed once and the half image plane photographing mode in which the image plane is exposed twice so as to form either half image frame whose area is about 1/2 and the other half image plane whose area is about 1/2 from almost the center of the image plane in the feeding direction of the film, and a display means for displaying the number of frames of film. The display means simultaneously displays both of the number of frames assuming that photographing is performed on all the unexposed frames in the ordinary photographing mode and the number of frames assuming that photographic is performed on all the unexposed frames in the half image plane photographing mode.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera which uses a film in which the position of a screen is predetermined for a predetermined perforation and which can be switched to an image frame forming a screen size of about half.

[0002]

2. Description of the Related Art In a normal camera using a 135 film, a normal screen size is 36 mm × 24 mm, but a half length is set to about 1/2 of the horizontal length of 17 mm and a screen size of 17 mm × 24 mm. There were times when many size cameras were commercially available. In addition, 36mm
Some cameras were switchable between a full size of 24 mm and a half size of 17 mm 24 mm.

[0003]

An image is taken by a camera which can be switched between a full size and a half size as described above, and 1
If both screen sizes are mixed in a book film, the screens may not be arranged at equal intervals. For this reason, when performing print processing in the lab, the enlargement magnification differs depending on the screen size, and the long side direction differs,
Further, since the screens are not equally spaced, the operation is very troublesome.

At present, a half-size camera is not manufactured, and a full-size camera using 135 film and a camera using IX240 film are mainly used. When requesting a print, a normal user specifies a print of a service size. The size of the print is generally E size of 82 mm × 117 mm or L size of 89 mm × 127 mm.

[0005] Such prints are of a suitable size for pasting on an album. However, some young people keep their friends' photos in their regular pocketbooks and are seeking smaller prints. However, it is very difficult to develop or install a processor that produces small prints for some of these customers.

Even if this is realized, for example, the price of a print that is half the size of the E size cannot be half the price of the current print of the E size. It is expected that the price will be close to the price of the print.

The present invention was invented as a result of research into making it possible to easily obtain a small print as described above, and it was possible to obtain a print having a screen size about half that of a simple configuration. A camera that displays the number of unexposed frames that can be taken in the normal mode and the number of unexposed frames that can be taken in the half screen mode, and the exposed camera that has been taken in the normal mode It is an object of the present invention to propose a camera which displays the number of frames and the number of exposed frames photographed in a mode in which the screen becomes half the screen.

[0008]

The above object is achieved by any of the following means.

In a camera using a film in which the position of a screen is predetermined for a predetermined perforation, a normal photographing mode in which the screen is exposed once,
A half-screen shooting mode for forming a half-screen of approximately one-half area and a half-screen of another half area from the approximate center of the screen in the film feeding direction by multiple exposures. Switchable screen photographing mode switching means, and display means for displaying the number of frames of the film, the display means, the number of frames when it is assumed that all unexposed frames are photographed in the normal photographing mode, and A camera which simultaneously displays both the number of frames assuming that all unexposed frames are photographed in the half-screen photographing mode.

In a camera using a film in which the position of a screen is predetermined for a predetermined perforation, a normal photographing mode in which the screen is exposed once,
A half-screen shooting mode for forming a half-screen of approximately one-half area and a half-screen of another half area from the approximate center of the screen in the film feeding direction by multiple exposures. Switchable screen photographing mode switching means, and display means for displaying the number of frames of the film, the display means, the number of frames when it is assumed that all unexposed frames are photographed in the normal photographing mode, and A camera characterized in that the number of frames assuming that all unexposed frames are photographed in the half-screen photographing mode are alternately displayed at predetermined time intervals.

In a camera using a film in which the position of the screen is predetermined for a predetermined perforation, a normal photographing mode in which the screen is exposed once,
A half-screen shooting mode for forming a half-screen of approximately one-half area and a half-screen of another half area from the approximate center of the screen in the film feeding direction by multiple exposures. Switchable screen shooting mode switching means, display means for displaying the number of frames of the film, display selection means for allowing a user to select the content to be displayed on the display means,
The display means displays the number of frames when it is assumed that all unexposed frames are shot in the normal shooting mode, and the number of frames when it is assumed that all unexposed frames are shot in the half-screen shooting mode. A camera, which is selectively displayed by a selection unit.

In a camera using a film in which the position of the screen is predetermined for a predetermined perforation, a normal photographing mode in which the screen is exposed once,
A half-screen shooting mode for forming a half-screen of approximately one-half area and a half-screen of another half area from the approximate center of the screen in the film feeding direction by multiple exposures. Switchable screen photographing mode switching means, and display means for displaying the number of frames of the film, wherein the display means comprises: a frame number photographed in the normal photographing mode; and a frame photographed in the half screen photographing mode. A camera for displaying both numbers simultaneously.

In a camera using a film in which the position of the screen is predetermined for a predetermined perforation, a normal photographing mode in which the screen is exposed once,
A half-screen shooting mode for forming a half-screen of approximately one-half area and a half-screen of another half area from the approximate center of the screen in the film feeding direction by multiple exposures. Switchable screen photographing mode switching means, and display means for displaying the number of frames of the film, wherein the display means comprises: a frame number photographed in the normal photographing mode; and a frame photographed in the half screen photographing mode. A camera wherein numbers are displayed alternately at predetermined time intervals.

In a camera using a film in which the position of the screen is predetermined for a predetermined perforation, a normal photographing mode in which the screen is exposed once,
A half-screen shooting mode for forming a half-screen of approximately one-half area and a half-screen of another half area from the approximate center of the screen in the film feeding direction by multiple exposures. Switchable screen shooting mode switching means, display means for displaying the number of frames of the film, display selection means for allowing a user to select the content to be displayed on the display means,
Wherein the display means selectively displays the number of frames shot in the normal shooting mode and the number of frames shot in the half-screen shooting mode by the display selection means.

In a camera using a film in which the position of a screen is predetermined for a predetermined perforation, a normal shooting mode in which the screen is exposed once,
A half-screen shooting mode for forming a half-screen of approximately one-half area and a half-screen of another half area from the approximate center of the screen in the film feeding direction by multiple exposures. Switchable screen photographing mode switching means, and display means for displaying the number of frames of the film, and when switching to the normal photographing mode, at least a sign indicating a print type is displayed on the display means, A camera characterized by displaying at least a symbol indicating the half-screen shooting mode on the display means when switching to the half-screen shooting mode.

In a camera using a film in which the position of the screen is predetermined for a predetermined perforation, a normal photographing mode in which the screen is exposed once,
A half-screen shooting mode for forming a half-screen of approximately one-half area and a half-screen of another half area from the approximate center of the screen in the film feeding direction by multiple exposures. Switchable screen photographing mode switching means, and display means for displaying the number of frames of the film, and when switching to the half screen photographing mode, the display means,
A camera characterized in that it is possible to appropriately switch between displaying at least a symbol indicating the half-screen shooting mode and displaying at least date information.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a camera according to the present invention will be described in detail with reference to the drawings.

First, an example of an exterior member of a camera according to the present invention will be described with reference to FIGS. FIG. 1 is a perspective view of the camera viewed from the front, and FIG. 2 is a perspective view of the camera viewed from the rear.

In FIG. 1, a lens barrel 1 holding a photographing lens L is disposed at the center of the front of the camera, and an objective lens window 2 of a finder is disposed above the lens barrel. At the upper right of the lens barrel 1, a photometric window 3 for measuring the subject light is arranged. On the left and right of the objective lens window 2, a light emitting window 4 for emitting infrared light for distance measurement, and infrared light reflected by the subject are provided. A light receiving window 5 for receiving light is disposed. On the right side of the light receiving window 5, a strobe light emitting window 6 for emitting strobe light is arranged.

A release button 7 is provided on the upper surface of the camera.
Is arranged. In FIG. 2, an eyepiece window 11 of a finder is arranged at the center of the back of the camera, and a print type switching lever 12 is arranged above the eyepiece window.
This camera uses an IX240 film, and can switch to the C, H, and P print types, which are normal shooting modes, by sliding the print type switching lever 12 right and left. As is well known, a field frame (not shown) inside the viewfinder is switched in accordance with the switching of the print type, and information corresponding to the selected print type is magnetically recorded on the film at the time of photographing. This camera has a half-screen shooting mode in which one screen is divided into right and left parts so that half screens can be separately shot as described later. To set the half-screen shooting mode, the print type switching lever 12 may be slid to the far right to match the index to W.

A display section 13 made of a liquid crystal plate is arranged below the eyepiece window 11, and displays the number of frames, a photographing mode, a date to be imprinted on a film, and the like.

A main switch lever 14 for operating a main switch, which will be described later, is disposed below the display unit 13. On the left side of the display unit 13, a shooting mode button 15 for switching a shooting mode, and a date for printing on film are changed. A date button 16 for rewinding the film and a midway rewind button 17 for rewinding the film before shooting all the frames are arranged.

Each time the photographing mode button 15 is pressed, the photographing mode switches to a strobe on mode, a strobe off mode, a portrait night view mode, a red-eye reduction mode, an exposure correction mode, etc. in addition to the auto mode.

Further, since the photographing lens L is a zoom lens, a zoom button 18 for performing zooming on the wide-angle side and the telephoto side is disposed on the right side of the eyepiece window 11, and
Below the zoom button 18, a cartridge lid opening lever 20 for opening the cartridge lid 19 for loading a film is arranged.

It should be noted that the camera according to the present invention is not limited to the above-described camera, and the print type switching lever may be of a type that is not a sliding type but is rotated.

Next, the half screen photographing mode will be described with reference to FIGS. FIG. 3 is a cross-sectional view of the image frame switching mechanism, and FIG. 4 is an explanatory diagram of film feeding.

First, the image frame switching mechanism will be described with reference to FIG. The subject light exposes the film F by the taking lens L when the shutter 31 is opened. When the print type switching lever 12 is set to any of C, H, and P, the state is as shown in FIG. 3A, and a 27.4 mm × 15.6 mm screen is formed on the film F by the image frame 32. . The film is fed left and right in FIG.

Next, the print type switching lever 12 is set to W
When the light shielding plate motor is driven by the CPU described later, the light shielding plate 33 is rotated clockwise, and the light shielding plate 3 is rotated.
4 is rotated counterclockwise. As a result, both ends of the image frame 32 in the film feeding direction are shielded from light with an area of about ４, and a state shown in FIG. 3B is obtained. The area becomes 1/2. Hereinafter, this image frame is referred to as a half image frame. Thereby, the film F
The screen formed in this manner has an area of about １ ／, but this screen is hereinafter referred to as a half screen.

The image frame switching mechanism is not limited to the above-described mechanism, but may be of a type in which the light shielding plate slides left and right or up and down.

Next, film feeding will be described with reference to FIG. The film of the present embodiment is an IX240 film, and the position of the screen Fa formed by exposure is defined in advance by two perforations P1 and P2 located at both ends of the screen Fa. Further, a first photosensor PA, a second photosensor PB, and a third photosensor PC each including a photoreflector for detecting the perforations P1 and P2 are arranged near the image frame 32. In FIG. 4, it is assumed that the film F is fed from right to left at the time of winding. That is, the cartridge for storing the film F is disposed on the right side, and the reel for winding the film F is disposed on the left side.

FIG. 4A shows a print type switching lever 1.
FIG. 3 is a diagram of the film when 2 is set to any of C, H, and P, and a screen Fa is formed on the film F by photographing. Then, the CPU starts a film feed motor (not shown) in the forward direction to wind up the film for one screen, but the first photosensor PA has passed the two perforations P2 and P1 located at the upper right. Is detected,
This causes the CPU to stop the film feed motor.
The reason why the perforation P1 is not stopped immediately above the first photosensor PA is that there is a slight time lag until the film feeding motor completely stops.

Next, the print type switching lever 12 is set to W
Suppose you set Then, as shown in FIG.
At the same time, the film feed motor is rotated in the reverse direction to start rewinding the film. That is, FIG.
The film F is fed in the opposite direction. At this time, the second photo sensor PB detects that the perforations P1 and P2 located at the upper left have passed,
U stops the film feed motor, rotates the film feed motor forward again, and winds up the film F in the same direction as in FIG. Then, the second photosensor PB detects that the same perforations P2 and P1 have passed, and thereby the CPU stops the film feeding motor.
The state shown in FIG. Here, when photographing is performed, the left half of the screen Fa is exposed by the half image frame formed by the light shielding plates 33 and 34, and the first half image Fb is formed.

When the first half screen Fb is formed, the CPU starts the film feed motor in the normal rotation direction. At this time, the third photosensor PC is driven by the perforation P2 located at the upper left of FIG. , P1 have passed, and the film feed motor is stopped. As a result, the state shown in FIG. If you shoot here,
The screen Fa is formed by a half-frame formed by the light shielding plates 33 and 34.
Is exposed to form a second half screen Fc.

When the second half screen Fc is formed, the CPU starts the film feed motor in the normal rotation direction. At this time, the second photosensor PB detects the perforation P2 located at the upper right of FIG. , P1 are detected, and the film feeding motor is stopped. As a result, the state shown in FIG.

At the time of printing in the laboratory, the first
The half screen Fb and the second half screen Fc are divided into the screen Fa as one frame.
Is printed the same as That is, the prints obtained by the first half screen Fb and the second half screen Fc are handed to the user in a connected state. Accordingly, the user separates the print obtained by the first half screen Fb and the second half screen Fc by himself.

As described above, the first half screen F separately shot
b and the second half screen Fc.
Since the printing is performed in the same manner as that of the conventional printing machine, a conventional printing machine can be used as it is. However, if there is too much density difference between the negatives of the first and second half screens Fb and Fc on the left and right, it is difficult to print with proper exposure. Therefore, the present camera is configured such that after forming the first half screen Fb, it is impossible to return to the state where the screen Fa is formed when the second half screen Fc is not formed. This will be described later with reference to the flowchart. However, before the image is captured in the state of FIG. 4C and the second half screen Fc is not formed, FIG.
The state of (A) cannot be returned.

In the state shown in FIG. 4B, the first half screen F
When b is not formed, the state shown in FIG. 4A can be returned. At this time, the CPU starts the film feeding motor in the normal rotation direction, and stops the film feeding motor by detecting that the first photosensor PA has passed only the perforation P1 on the right side.

Further, the user obtains a print in which the images of the first half screen Fb and the second half screen Fc are connected, and
You will separate them yourself, but if the images have similar backgrounds, the boundaries are difficult to see. Therefore, it is desirable that the boundary where the first half screen Fb and the second half screen Fc are connected is made clear by making a double-exposure into a whitish boundary band or an unexposed black boundary band. In order to form a double-exposed boundary zone, at least one of the light-shielding plate 33 and the light-shielding plate 34 may be formed to have a shorter length in the film feeding direction. In this case, the length of at least one of the light shielding plate 33 and the light shielding plate 34 in the film feeding direction may be made longer.

Further, variations in the positions of the perforations P1 and P2 in the film F and the second photo sensor P
The boundary between the first half-screen Fb and the second half-screen Fc is formed as one line due to variations in the positions of B and the third photosensor PC and variations in the time until the film feed motor stops rotating. hard. Therefore, the second photo sensor PB
Is located slightly downstream of the theoretically set position in the feeding direction, or at least one of the third photosensor PC is positioned slightly upstream of the theoretically set position in the feeding direction. If one of them is performed, the boundary between the adjacent first half screen Fb and second half screen Fc becomes a boundary band that has been double-exposed. Further, the second photosensor PB is disposed slightly upstream in the feeding direction from the theoretically set position, or the third photosensor PC is positioned slightly downstream in the feeding direction from the theoretically set position. If at least one of them is arranged, the adjacent first half screen Fb and second half screen F
The boundary of c is an unexposed black boundary band.

Next, the circuit configuration of the main part of the camera according to the present invention will be described with reference to the block diagram of FIG.

The CPU 40 controls each circuit and electric components as shown in a flowchart described later. The photometry circuit 41 measures the subject brightness based on the subject light incident on the photometry window 3. The distance measurement circuit 42 measures the subject distance by infrared light emitted from the light emitting window 4, reflected by the subject, and incident on the light receiving window 5. The lens drive circuit 43 has a lens drive motor, extends the lens barrel 1 from the retracted state, and extends the lens barrel 1 to a focus position based on the distance measurement result of the distance measurement circuit 42. The feeding circuit 45 has a film feeding motor and feeds the film as described above. The strobe circuit 46 emits strobe light from the strobe light emission window 6.

The display section 13 is the same as that shown in FIG. 2, and will be described later in detail. The light shield driving unit 47 has a light shield motor and drives the light shield 33 and the light shield 34 shown in FIG. A first photosensor PA, a second photosensor PB,
The third photosensor PC is the same as that described with reference to FIG.

The classic switch C-SW, the high-vision switch H-SW, the panorama switch P-SW, and the half-screen shooting switch W-SW are a print type switching lever 1
Switching is performed sequentially by the operation of 2. The main switch M-SW is turned on by operating the main switch lever 14. S1-SW is turned on when the release button 7 is half-pressed, and S2-SW is turned on when the release button 7 is further depressed. R-SW is halfway rewind button 1
It is turned on by pressing operation 7.

Next, an example of a display on the display unit 13 will be described with reference to FIG. FIG. 6A shows the print type switching lever 1 before the main switch lever 14 is operated.
FIG. 3 is a diagram when any one of C, H and P is set according to FIG. At this time, when it is assumed that all the unexposed frames are shot in the normal shooting mode, the number of frames 13a
And only the number 13b of frames that can be photographed when it is assumed that all unexposed frames are photographed in the half screen photographing mode. In this example, the frame number 13a is displayed as 6, and the frame number 13b is displayed as 12.

FIG. 6B shows a state in which the print mode switching lever 12 is set to the half-screen photographing mode before the main switch lever 14 is operated. At this time, a half-screen shooting mode symbol 13c indicating a half-screen shooting mode is displayed in addition to the number of frames 13a and 13b.

FIG. 6C similarly shows a state before the main switch lever 14 is operated, the half screen photographing mode is set by the print type switching lever 12, and only the first half screen Fb is formed by photographing. It is a figure when switching to a mode or performing a rewinding operation. In this case, a black and white inverted display is repeatedly displayed on the left half of the half-screen shooting mode symbol 13c to give a warning.

FIG. 6D is a diagram when the main switch M-SW is turned on by operating the main switch lever 14 and the print type switching lever 12 is set to C, H or P. In this case, the number of frames is 13
A shooting mode symbol 1 representing a shooting mode in addition to a and 13b
Display 3d. In this example, the basic shooting mode AUTO is displayed.

Each time the shooting mode button 15 is operated, the display of AUTO in the shooting mode symbol 13d disappears, and symbols indicating the strobe on mode, strobe off mode, portrait night view mode, red eye reduction mode, and exposure correction mode are displayed. It is displayed sequentially.

FIG. 6E is a diagram when the main switch lever 14 is operated to turn on the main switch M-SW, and the print type switching lever 12 is set to the half screen photographing mode. In this case, a half-screen shooting mode symbol 13c is displayed on the display of FIG. Note that this is a state where neither the first half screen Fb nor the second half screen Fc is photographed.

FIG. 6F shows a print type switching lever 1.
2 is a diagram when a half screen photographing mode is set by 2 and only the first half screen Fb is formed by exposure. At this time,
The left half of the half-screen shooting mode symbol 13c is displayed in black.

FIG. 6G shows a print type switching lever 1.
2 is a diagram when the half-screen shooting mode is set by 2 and only the first half-screen Fb is formed, and the print type switching lever 12 is operated to switch to the normal shooting mode or perform rewinding. In this case, a black and white inverted display is repeatedly displayed on the left half of the half-screen shooting mode symbol 13c to give a warning.

6 (A), (B), (D),
In (E), the number of frames 13b is twice the number of frames 13a,
6 (C), (F) and (G), the number of frames 13b is a value obtained by adding 1 to twice the number of frames 13a.

In the above example, the frame numbers 13a and 13b are always displayed at the same time, but they may be displayed alternately at intervals of, for example, three seconds.

In addition, the print type switching lever 12
When C, H or P is set, only the number of frames 13a may be displayed, and when set to the half-screen shooting mode, only the number of frames 13b may be displayed. Further, such display switching may be performed by a dedicated operation member different from the print type switching lever 12.

Next, the operation of the camera will be described with reference to FIGS. First, in the flowchart of FIG. 7, when a battery is inserted into the camera, the circuits and mechanisms including the CPU 40 are initialized (101). next,
It is determined whether or not the print type switching lever 12 is set to the half screen shooting mode (102).

If the half-screen shooting mode is not set, the half-screen shooting switch W-SW is not turned on (102
N) Then, it is determined whether or not a film is loaded in the camera (103).

If a film is loaded (Y in 103), it is determined whether or not the W flag which is a flag indicating whether or not exposure has been performed in the half-screen shooting mode is 0 or 1 (104). The fact that the W flag is 0 indicates that the exposure has not been performed and both the first half screen Fb and the second half screen Fc have not been formed. The fact that the W flag is 1 indicates that the exposure has not been completed. Only one half screen Fb is formed and the second half screen Fc
Shows a state in which is not formed. If the W flag is 0 (0 of 104), the frame numbers 13a and 13b are displayed on the display unit 13 (106). If the W flag is 1 (1 of 104), the display unit 13 shown in FIG. Such a warning display is performed (105), and the frame numbers 13a and 13b are displayed on the display unit 13 (106). Then, the process proceeds to the operation flow shown in FIG.

If the half-screen shooting switch W-SW is not on (N of 102) and no film is loaded (1)
N of 03), the W flag is set to 0 (107), and the display unit 1
The number of frames 13a, 13b of 3 is displayed as 0 (108),
Move to operation flow 120.

If the half-screen shooting mode is set, the half-screen shooting switch W-SW is on (Y in 102), and it is then determined whether or not a film is loaded (109).

If no film is loaded (109
N), the W flag is set to 0 (110), and the display unit 13 displays that it is in the half-screen shooting mode as shown in FIG. 6B (111).

If a film is loaded (Y in 109), it is determined whether the W flag is 0 or 1 (112). If the W flag is 0 (0 of 112), the number of frames 13a and 13b are displayed on the display unit 13 as it is as shown in FIG. 6B (113), and the display unit 13 indicates that the camera is in the half-screen shooting mode. (111), and the operation shifts to the operation flow of FIG.

If the W flag is 1 (1 of 112),
As shown in (C), the number of frames 13a and 13b are displayed on the display unit 13 (114), a warning is displayed on the display unit 13 (115), and the flow shifts to the operation flow of FIG.

Next, in the operation flow of FIG. 8, if the rewind switch R-SW is turned on by pressing the rewind button 17 in the middle (Y of 121), the process proceeds to the rewind flow shown in FIG. And then return to step 121.

Without turning on the rewind switch R-SW (1
When the main switch M-SW is turned on by operating the main switch lever 14 (N of 21), the photographing mode and the like are displayed on the display unit 13 to indicate that the photographing state has been entered (Y of 122). 123). At this time, if any of the normal shooting modes C, H, and P has been set, FIG.
If the half-screen shooting mode is set, the display of FIG. 6E is displayed. Subsequently, the photographing lens is extended to the initial position (124), and the strobe is charged (1).
25), the process proceeds to the half-screen shooting mode flow 130.

In the half-screen shooting mode flow of FIG.
By operating the print type switching lever 12, the operation of setting the half-screen shooting mode to any of the normal shooting modes C, H, and P is not performed (N of 131), and the normal shooting mode is set to the half-screen shooting mode. If no operation is performed (N in 132), it is determined whether or not the half-screen shooting mode is set (133).

If the half-screen shooting mode is set and the half-screen shooting switch W-SW is on (Y in 133),
It is determined whether the W flag is 0 or 1 (134). If the W flag is 0 (0 in 134), it is determined whether or not the light shielding plates 33 and 34 are inserted by a light shielding plate detecting means (not shown) so as to form a half-frame (135). , 34
Is not inserted (N of 135), the light shielding plate 33,
34 is inserted (136), and if the light shielding plates 33 and 34 are inserted (Y of 135), the display unit 13 is directly displayed in FIG.
A display is made to indicate that the first half screen Fb is to be photographed, as in (E) (137). Then, control goes to a step 161 in FIG.

If the W flag is 1 (1 of 134), a display is made on the display unit 13 to indicate that the second half screen Fc is to be photographed as shown in FIG. 6F (138). Then, control goes to a step 161 in FIG.

When the half-screen shooting mode is not set,
If the half-screen shooting switch W-SW is off (N in 133) and the W flag is 0 (0 in 139), the process proceeds to step 161 in FIG. If the W flag is 1, (1
39-1), a warning is displayed on the display unit 13 as shown in FIG. 6G (140) (140), and the routine proceeds to step 133.

When the operation of switching from the half-screen photographing mode to any of the normal photographing modes C, H, and P by the print type switching lever 12 is performed (Y of 131), W
It is determined whether the flag is 0 or 1 (141). If the W flag is 0 (0 of 141), the quarter of the screen length in the film feeding direction is wound up (142), and the light shielding plates 33, 34 Is saved (143), the display unit 13 displays that the photographing state is as shown in FIG. 6D (144), and the process proceeds to step 161 in FIG. If the W flag is 1 (1-1 of 141), a warning display as shown in FIG. 6G is performed on the display unit 13 (145), and the routine proceeds to step 133.

Switching from the normal shooting mode to the half-screen shooting mode is not performed by switching the half-screen shooting mode to one of the normal shooting modes C, H, and P by the print type switching lever 12 (N of 131). When the operation is performed (Y in 132), it is determined whether the W flag is 0 or 1 (146). If the W flag is 1 (1 in 146), the process proceeds to step 133. If the W flag is 0 (0 of 146), rewind 1/4 of the screen length in the film feeding direction (147), and insert the light shielding plates 33 and 34 (148).
A display indicating that the first half screen Fb is to be taken as shown in FIG. 6E is displayed on the display unit 13 (14).
9). Then, control goes to a step 161 in FIG.

Here, when only the first half screen Fb is formed by exposure and the second half screen Fc is not formed,
It is assumed that the operation of switching from the half-screen shooting mode to one of the normal shooting modes C, H, and P by the print type switching lever 12 is performed. Then, in step 145 from Y in step 131 via 1 in step 141,
A warning display as shown in (G) is performed, and a warning display is performed in step 140 from N in step 133 through 1 in step 139. Then, returning to step 133 again,
It is impossible to escape from the flow loop, and the warning display is continued. In order to get out of the loop, it is necessary to return to the half screen photographing mode and form the second half screen Fc by exposure.

Here, when the print type switching lever 12 is operated to switch from the normal shooting mode to the half-screen shooting mode, or when the mode is changed from the half-screen shooting mode to the normal shooting mode, it is confirmed that the switching has been reliably performed. For confirmation, it is desirable that the switched shooting mode is not set immediately, but set several seconds later.

Subsequently, in FIG. 8, the release button 7
Is pressed halfway to turn on S1-SW (161
(Y), the flow shifts to the release flow 170.

In the release flow shown in FIG. 10, the photometry is performed by the photometric means 41 (171), the distance is measured by the distance measuring means 42 (172), and the release button 7 is pressed to turn on the S2-SW. If it is (Y in 173), the photographing lens L is advanced to the focus position based on the result of the distance measurement, and the shutter is opened and closed based on the result of the photometry to perform photographing (174). If the luminance is low, the strobe light is emitted. Subsequently, film winding is performed in a winding flow 180.

Here, the winding flow is shown in FIGS.
It will be described based on. First, in FIG. 11, if no film is loaded (N in 181), the process returns to the original state.
If a film is loaded (Y in 181), the film feed motor is started (182) and the film is wound. Here, if the half-screen shooting switch W-SW is off (N in 183), it is determined whether or not it is the last frame (18).
4) If the last frame (Y in 184), the rewinding flow 23
Rewinding is performed at 0, and the process returns to step 121. If it is not the last frame (N of 184), the first photosensor PA
To count two pulses (185), and stop the film feed motor (186). Then, the number of frames 13a and 13b on the display unit 13 is displayed by moving down one frame (18).
7) Return to the original.

If the half-screen shooting switch W-SW is on (Y in 183), the process proceeds to FIG. 12, where the W flag is determined (191). If the W flag is 0 (0 in 191), the W flag is reset. 1 (192), and 3
The pulse is counted (193), and the film feed motor is stopped (194). Then, FIG.
A display indicating that the second half screen Fc is to be taken, as in (F), is displayed (195), and the process returns to the original state.

If the W flag is 1 (191-1, 1), the W flag is set to 0 (196), and it is determined whether or not it is the last frame (197). If it is the last frame (Y in 197), rewinding is performed. Rewinding is performed in the flow 230, and the process returns to step 121. If it is not the last frame (N in 197), two pulses are counted by the second photosensor PB (198), and the film feed motor is stopped (199). Then, the number of frames 13a and 13b on the display unit 13 is moved down by one frame and displayed (200), and a display indicating that the first half screen Fb as shown in FIG. (201), and returns to the original state.

Returning to FIG. 10, after the winding flow 180, the strobe is charged (211), and step 1 in FIG.
Return to before 21.

In FIG. 10, if S2-SW is not on (N of 173) and S1-SW remains on (17)
5), before returning to step 173, if S1-SW is turned off (N of 175), step 12 of FIG.
Return to before 1.

In FIG. 8, if the S1-SW is not turned on (N of 161), the state of the main switch M-SW is checked (221), and if the main switch M-SW is turned on (N of 221). Returning to step 121, if the main switch M-SW is off (Y in 221), the lens barrel 1 is retracted (222). At this time, if the W flag is 0 (0 of 223), the display indicating the shooting state as shown in FIG. 6B is deleted from the display unit 13 (224), and if the W flag is 1, (1 of 223); A warning is displayed on the display unit 13 as shown in FIG. 6C (225).

In FIG. 8, when the rewind switch R-SW is turned on by pressing the midway rewind button (121).
(Y), the process proceeds to the rewind flow 230. The rewind flow 230 will be described with reference to FIG.

In FIG. 13, if the W flag is 0, (2
31-0), the lens barrel 1 is retracted (23)
2) Rewind (233), and return to before step 121. If the W flag is 1 (231 of 1), the display unit 13
A warning is displayed as shown in FIG. 6G (234), and the process returns to the step 121.

In the above-described embodiment, the center of the screen coincides with the optical axis of the photographing lens L in both the normal photographing mode and the half-screen photographing mode. Sent. However, in the half-screen shooting mode, the center of the half-screen does not coincide with the optical axis of the shooting lens L, and the film exposes the left half screen and the right half screen respectively in the normal shooting mode position. In this way, the film feed may be the same as in the normal shooting mode even when the half-screen shooting mode is set.

An image frame switching mechanism having such a configuration will be described with reference to FIG. In FIG. 14, when the shutter 51 is opened, the subject light is exposed on the film F by the taking lens L. Print type switching lever 12
14A is set to one of the normal photographing modes C, H, and P, the state is as shown in FIG. 14A, and a 27.4 mm × 15.6 mm screen is formed on the film F by the image frame 52. The film is fed left and right in FIG.

When the print type switching lever 12 is switched to W to set the half-screen photographing mode, the CPU drives the light shielding plate motor to rotate the light shielding plate 54 in the counterclockwise direction, and the image frame 52 in the film feeding direction is rotated. 14B is shielded from light, and the state shown in FIG. 14B is obtained. Here, when photographing is performed, a film having an area of about １ ／ located on the left side of the image frame 52 is exposed, and a first half screen is formed.

Next, without feeding the film, the light shielding plate 54
14 is rotated clockwise to retract, and the light shielding plate 53 is rotated clockwise to shield about half the area located on the left side of the image frame 52 in the film feeding direction.
(C). When photographing is performed, a film having an area of about １ ／ located on the right side of the image frame 52 is exposed to form a second half screen. Thereafter, the film is wound up in the same manner as in the normal photographing mode, and the above operation is repeated. When the normal shooting mode is set, the light shielding plates 53 and 54 are retracted,
The state shown in FIG.

In this case, as long as the photographing is not completed in the state shown in FIG. 14C, it is possible to control so that the state cannot be returned to the state shown in FIG. It is.

In this case, only the first photosensor PA described above is used to control the feeding of the film F, and the second photosensor PB and the third photosensor PC are unnecessary.

Further, also in this case, the length of at least one of the light-shielding plate 53 and the light-shielding plate 54 in the film feeding direction is shortened, and the boundary line between the first half screen and the second half screen is double-exposed. Alternatively, the boundary line between the first half screen and the second half screen is unexposed by increasing the length of at least one of the light shielding plate 53 and the light shielding plate 54 in the film feeding direction, thereby making the boundary line unexposed. It is desirable to be clear.

In addition, in FIG. 3 and FIG. 14, an LE perpendicular to the film feeding direction is
A D array may be provided to double-expose the boundary between the first half screen and the second half screen.

Further, in the above embodiment, the number of unexposed frames is displayed on the display unit 13, but the number of exposed frames may be displayed. An example of this is shown in FIG.

FIG. 15 is a view of the display unit similar to FIG.
FIGS. 15A to 15G correspond to FIGS. 6A to 6G. And in FIG.
The frame number 13a indicates the number of exposed frames shot in the normal shooting mode, and the frame number 13b indicates the number of exposed frames shot in the half-screen shooting mode. Here, the number of frames 13a, 1
Since it is not easy to determine the film consumption by only 3b,
The number of frames 13e is displayed assuming that all images were taken in the normal shooting mode. In this example, 1
This is a state in which eight frames have been photographed and 12 frames have been photographed in the half-screen photographing mode, and the number of frames 13e converted assuming that all of the frames have been photographed in the normal photographing mode is 24 (18 + 12/2 = 24).

Also in this case, the frame numbers 13a and 13b may be alternately displayed at intervals of, for example, 3 seconds.

When the print type switching lever 12 is set to any one of C, H and P, only the number of frames 13a is displayed, and when the mode is set to the half screen shooting mode, only the number of frames 13b is displayed. You may do so. Further, such display switching may be performed by a dedicated operation member different from the print type switching lever 12.

The display unit 13 shown in FIGS.
Is displayed in the half-screen shooting mode by adding some symbols to the display in the normal shooting mode. However, the display may be significantly different between the normal shooting mode and the half-screen shooting mode. Also, two types of display may be performed in the half screen shooting mode. By performing such display,
A large number of pieces of photographing information can be displayed on a display unit having a limited size.

FIG. 16 shows an example of this. FIG. 16A shows a display on the display unit in the normal shooting mode.
FIG. 16B shows a display on the display unit in the half-screen shooting mode, which is the same as FIG. 16E, and FIG. 16C shows a different display on the display unit in the half-screen shooting mode.

When switching to the normal photographing mode, the display unit 1
3 is displayed as shown in FIG. Although the shooting mode symbol 13d indicates AUTO, each time the shooting mode button 15 is operated, the flash mode is turned on, the flash mode is turned off, the portrait night view mode, the red-eye reduction mode, and the exposure correction mode are displayed. Are sequentially displayed. Reference numeral 13f denotes a print type symbol indicating a print type. Although "C" indicating the C type is displayed in the figure, "C" disappears when the print type switching lever 12 is switched, and "H" indicating the H type is displayed. "And" P "indicating the P type are displayed. 13g is a display of the remaining amount of the battery which is the power supply of the camera. 13h is a date display for displaying date information to be imprinted on the film. In the figure, the date is displayed, but the operation of the date button 16 sequentially switches to date and time, month, day, day, month, year, and a symbol without imprint. Reference numeral 13a denotes the number of frames that can be shot when it is assumed that all unexposed frames are shot in the normal shooting mode.

When the mode is switched to the half-screen shooting mode, the display section 13 displays the display shown in FIG. It is assumed that the shooting mode symbol 13d, the half-screen shooting mode symbol 13c, the number of frames 13a that can be shot when all the unexposed frames are shot in the normal shooting mode, and that all the unexposed frames are shot in the half-screen shooting mode. Number of frames that can be taken when shooting
3b is displayed.

Also, in the half screen photographing mode, FIG.
The display of FIG. 16C may be switched from the display of FIG. 16B to the display of FIG. When switching to FIG. 16C, the half-screen shooting mode symbol 13c and the number of frames 13
a disappears, and a date display 13a and a battery remaining amount display 13g are displayed instead.

The display shown in FIG. 13B and the display shown in FIG.
May be switched by operating a predetermined operation member.

The frame numbers 13a and 13b may be the number of exposed frames. Further, the display is not limited to the display shown in FIG. 13, and a self-timer, remote control, close-up, distant view mode, presence / absence of film, and the like may be displayed.

In addition, in the present invention, even when the IX240 film is used as the film F and the half-screen shooting mode is set, the screen formed by exposure corresponds to the H type. However, it is desirable that the print type for magnetic recording on the film be the C type.
However, when a camera capable of selecting the H type is used, the print type switching lever may be configured to be able to select two half-screen shooting modes of the C type and the H type.

The film is not necessarily limited to the IX240 film, but may be a 110 film or a 12 film.
Any film may be used as long as the position of the screen is predetermined for a predetermined perforation, such as six films.

Finally, the correspondence between the terms described in the claims and the terms described in the embodiments of the invention will be described.

The image frame photographing mode switching means includes a print type switching lever 12, a light shielding plate driving section 47, and light shielding plates 33 and 3.
4, 53, 54.

The display means corresponds to the display unit 13.

[0107]

According to the camera according to the first to third and twelfth aspects, the number of frames that can be photographed can be confirmed according to each photographing mode.

According to the cameras described in the fourth to seventh and twelfth aspects, the number of shot frames can be confirmed according to each shooting mode.

According to the cameras described in claims 8 to 12,
A large number of pieces of photographing information can be displayed on a display unit having a limited size.

[Brief description of the drawings]

FIG. 1 is a perspective view of a camera as viewed from the front.

FIG. 2 is a perspective view of the camera as viewed from the rear.

FIG. 3 is a cross-sectional view of an image frame switching mechanism.

FIG. 4 is an explanatory diagram of film feeding.

FIG. 5 is a block diagram of a circuit of a main part.

FIG. 6 is an example of a display on a display unit.

FIG. 7 is a flowchart from a start to an operation flow.

FIG. 8 is a flowchart of an operation flow.

FIG. 9 is a flowchart of a half-screen shooting mode flow.

FIG. 10 is a flowchart of a release flow.

FIG. 11 is a flowchart of a hoisting flow.

FIG. 12 is a flowchart of a hoisting flow.

FIG. 13 is a flowchart of a rewind flow.

FIG. 14 is a cross-sectional view of an image frame switching mechanism of another embodiment.

FIG. 15 is an example of a different display on the display unit.

FIG. 16 is an example of a different display on the display unit.

[Explanation of symbols]

 F Film Fa screen Fb First half screen Fc Second half screen P1, P2 Perforation L Photographing lens PA First photosensor PB Second photosensor PC Third photosensor W-SW Halfscreen photography switch 12 Print type switching lever 13 Display Units 13a, 13b, 13e Number of frames 13c Half-screen shooting mode symbol 13d Shooting mode symbol 13f Print type symbol 13g Battery level display 13h Date information 32,52 Image frame 33,34,53,54 Light shield 40 CPU 45 Feeding circuit

Claims (12)

[Claims] 1. A camera using a film in which the position of a screen is predetermined for a predetermined perforation, a normal shooting mode in which the screen is exposed once,
A half-screen shooting mode for forming a half-screen of approximately one-half area and a half-screen of another half area from the approximate center of the screen in the film feeding direction by multiple exposures. Switchable screen photographing mode switching means, and display means for displaying the number of frames of the film, the display means, the number of frames when it is assumed that all unexposed frames are photographed in the normal photographing mode, and A camera which simultaneously displays both the number of frames assuming that all unexposed frames are photographed in the half-screen photographing mode. 2. A camera using a film in which the position of a screen is predetermined for a predetermined perforation, a normal photographing mode in which the screen is exposed once,
A half-screen shooting mode for forming a half-screen of approximately one-half area and a half-screen of another half area from the approximate center of the screen in the film feeding direction by multiple exposures. Switchable screen photographing mode switching means, and display means for displaying the number of frames of the film, the display means, the number of frames when it is assumed that all unexposed frames are photographed in the normal photographing mode, and A camera characterized in that the number of frames assuming that all unexposed frames are photographed in the half-screen photographing mode are alternately displayed at predetermined time intervals. 3. In a camera using a film in which the position of a screen is predetermined for a predetermined perforation, a normal shooting mode in which the screen is exposed once,
A half-screen shooting mode for forming a half-screen of approximately one-half area and a half-screen of another half area from the approximate center of the screen in the film feeding direction by multiple exposures. Switchable screen shooting mode switching means, display means for displaying the number of frames of the film, display selection means for allowing a user to select the content to be displayed on the display means,
The display means displays the number of frames when it is assumed that all unexposed frames are shot in the normal shooting mode, and the number of frames when it is assumed that all unexposed frames are shot in the half-screen shooting mode. A camera, which is selectively displayed by a selection unit. 4. A camera using a film in which the position of a screen is predetermined for a predetermined perforation, a normal shooting mode in which the screen is exposed once,
A half-screen shooting mode for forming a half-screen of approximately one-half area and a half-screen of another half area from the approximate center of the screen in the film feeding direction by multiple exposures. Switchable screen photographing mode switching means, and display means for displaying the number of frames of the film, wherein the display means comprises: a frame number photographed in the normal photographing mode; and a frame photographed in the half screen photographing mode. A camera for displaying both numbers simultaneously. 5. In a camera using a film in which the position of a screen is predetermined for a predetermined perforation, a normal shooting mode in which the screen is exposed once,
A half-screen shooting mode for forming a half-screen of approximately one-half area and a half-screen of another half area from the approximate center of the screen in the film feeding direction by multiple exposures. Switchable screen photographing mode switching means, and display means for displaying the number of frames of the film, wherein the display means comprises: a frame number photographed in the normal photographing mode; and a frame photographed in the half screen photographing mode. A camera wherein numbers are displayed alternately at predetermined time intervals. 6. A normal photographing mode in which the screen is exposed once in a camera using a film in which the position of the screen is predetermined for a predetermined perforation;
A half-screen shooting mode for forming a half-screen of approximately one-half area and a half-screen of another half area from the approximate center of the screen in the film feeding direction by multiple exposures. Switchable screen shooting mode switching means, display means for displaying the number of frames of the film, display selection means for allowing a user to select the content to be displayed on the display means,
Wherein the display means selectively displays the number of frames shot in the normal shooting mode and the number of frames shot in the half-screen shooting mode by the display selection means. 7. The display device according to claim 4, wherein the display unit always displays the number of frames converted assuming that all frames have been shot in the normal shooting mode. Camera. 8. A normal photographing mode in which the screen is exposed once in a camera using a film in which the position of the screen is predetermined for a predetermined perforation;
A half-screen shooting mode for forming a half-screen of approximately one-half area and a half-screen of another half area from the approximate center of the screen in the film feeding direction by multiple exposures. Switchable screen photographing mode switching means, and display means for displaying the number of frames of the film, and when switching to the normal photographing mode, at least a sign indicating a print type is displayed on the display means, A camera characterized by displaying at least a symbol indicating the half-screen shooting mode on the display means when switching to the half-screen shooting mode. 9. A normal photographing mode in which the screen is exposed once in a camera using a film in which the position of the screen is predetermined for a predetermined perforation;
A half-screen shooting mode for forming a half-screen of approximately one-half area and a half-screen of another half area from the approximate center of the screen in the film feeding direction by multiple exposures. Switchable screen photographing mode switching means, and display means for displaying the number of frames of the film, and when switching to the half screen photographing mode, the display means,
A camera characterized in that it is possible to appropriately switch between displaying at least a symbol indicating the half-screen shooting mode and displaying at least date information. 10. When the mode is switched to the half-screen shooting mode, at least a symbol indicating the half-screen shooting mode and at least date information are displayed on the display means at predetermined time intervals. The camera according to claim 9, wherein the camera is switched. 11. When a switch is made to the half-screen shooting mode, a predetermined operation member displays at least a symbol indicating the half-screen shooting mode and at least date information on the display means. 10. The camera according to claim 9, wherein the camera can be switched by an operation. 12. The camera according to claim 1, wherein the film is an IX240 film.