JPH095839A - Camera capable of using different-sized film - Google Patents

Abstract

PURPOSE: To provide a camera by which a photographing action can be executed by selectively loading roll films whose film width are respectively different. CONSTITUTION: When a cartridge housing the narrow-width roll film is loaded, a display window 15 is covered with the mask part 26c of a lever 26 and a display window 14 is exposed. Then, the photographing action can be executed by recognizing the cartridge and selecting a visual field frame whose finder is small. When a cartridge housing the wide-width roll film is loaded, the lever 26 is turned-right besides and the window 14 is covered with a mask part 26b. Besides, the window 15 is exposed. Then, the photographing action can be executed by selecting the visual field frame whose finder is large.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film-combined camera of different sizes capable of selectively loading at least two kinds of roll films having different film widths for photographing.

[0002]

2. Description of the Related Art A 35 mm roll film, which is generally widely used, is wound around a winding shaft in a cartridge (patrone), and each time a photograph is taken, the roll film is sequentially pulled out by a required length, and a predetermined length is obtained. When the number of shots has been taken, the cartridge is all rewound. On the other hand, from the viewpoint of the progress of film technology and the operability of cameras, various cartridge-containing films have been proposed so far, but the standards of each of these films have advantages and disadvantages, and are not adopted, or, Even if it is adopted, it is relatively short-lived.

Most of the short-lived films had an image frame (frame) size significantly different from that of the 35 mm film, or the aspect ratio of the image frame was significantly different. Therefore, there was a problem that it did not meet the taste of the user, but there was also a problem that the camera was dedicated to those films and the printing system had to be separate. From such a viewpoint, recently, compared with 35 mm film, the aspect ratio of the image frame is almost the same, the film width is not so small, and the loading operation to the camera is easy, and at the time of shooting. Proposals have been made for a film with a cartridge that can obtain a print with good reproducibility that meets the conditions.

In the case of a film whose image frame size does not change so much, since a common photographing optical system can be used, it is easy to develop a camera that can be selectively used with the conventional 35 mm film. . By the way, in order to realize such a dual-purpose camera, it is necessary to regulate the field of view of the photographing image frame (exposure aperture) and the viewfinder in accordance with the selected film. In order to regulate the field of view of the shooting image frame and the viewfinder in this way, a camera capable of shooting with the standard image frame and shooting with the panoramic image frame is known, and thus the technology can be diverted to the dual-purpose camera described above. There is plenty of potential. Therefore, realization of such a dual-purpose camera is highly expected.

[0005]

However, the above-described camera capable of shooting with the standard image frame and the panoramic image frame manually determines which of the 35 mm films in the same cartridge is used by the photographer during use. Even if it is not of a type that automatically switches the field of view frame in the viewfinder, you can know which one is selected by the selection device and shoot with the predetermined field of view frame in the viewfinder. It is possible to
On the other hand, in a camera for combined use of different types of films, when trying to shoot after a long time, it is not possible to know which kind of film is already loaded. Therefore, it is conceivable to provide means that can be operated outside the camera in the same manner as the above selection device.
In such a case, you may inadvertently touch it and move it, giving a different perception from the fact,
It becomes extremely unreliable. Therefore, it is necessary to automatically identify the loaded cartridges in the film / camera of different sizes so that the photographer can recognize the cartridges.

As a similar technique, a number of methods have been proposed in which the number of films and the film sensitivity in the loaded cartridge are automatically identified from the shape of the cartridge by a sensing means in the camera. By the way, when loading the film cartridge into the camera, there are cases where it is inserted from the bottom side of the camera in the direction of the winding axis of the cartridge,
In many cases, the back cover of the camera is opened and the cartridge is inserted in the radial direction. The above-mentioned conventional proposal has been to apply only one of such insertion methods, or to demand some restrictions on the shape of the cartridge side from the configuration of the camera side.

The present invention has been made to solve the above problems, and an object of the present invention is that roll film cartridges having different film widths have different axial dimensions of the winding shaft. Focusing attention, the film of different sizes does not give a special shape restriction to the cartridge, and automatically identifies and displays the type of the loaded cartridge regardless of the insertion direction of the loaded cartridge. It is to provide a dual-purpose camera.

[0008]

In order to achieve the above-mentioned object, a film-combined camera of different sizes in the present invention is a film reel of a cartridge which is movably arranged in a film chamber and is loaded. A contactor that is in contact with the end face in the direction and is positioned in at least two positions in the winding axis direction according to the type of the cartridge; and a display unit that can identify the type of the cartridge loaded according to the position of the contactor. And a finder in which a field frame corresponding to the loaded cartridge is formed.

Further, in the film-combined camera of different sizes in the present invention, preferably, the tentacle is provided at one end of the lever, and the display means has a display section for each kind of cartridge, By moving the lever, the type of the cartridge can be identified by any one of the display units. Further, in the film-combined camera of different sizes in the present invention, preferably, the contact is provided on a contact piece of a switch, and the display means is an illumination display means having a light emitting element, and the contact or separation of the switch is provided. The type of cartridge can be identified by lighting depending on the condition. Still further, in the film-combined camera of different sizes according to the present invention, it is preferable that the contact piece of the switch elastically presses the side surface of the cartridge toward the winding shaft in the film chamber to maintain the posture of the cartridge. So that it is formed integrally. Furthermore, in the film-combined camera of different sizes in the present invention, preferably, the light emitting element emits light corresponding to a specific cartridge, and the viewfinder has a view frame corresponding to the cartridge when the light emitting element emits light. The light of the light emitting element is reflected to the observation side.

[0010]

【Example】

First Embodiment A first embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is an explanatory view showing a loaded state of a film cartridge having a large width, FIG. 1 (a) is a view of a part of a film chamber cut away, and is viewed from the front, and FIG. )
It is the figure which it saw in the arrow direction in the cross section along the AA line of FIG. FIG. 2 is an explanatory view showing a loaded state of a film cartridge having a small width size, FIG. 2A is a view of a part of a film chamber cut away and viewed from the front, and FIG. ) BB
It is the figure which crossed in the line and looked at the arrow direction. FIG. 3 is an explanatory diagram showing a display example in the present embodiment, and FIGS. 3A, 3B and 3C show different examples.

First, the configuration of this embodiment will be described. The film 1 is integrated with the camera body, and the side wall 1 of the film chamber in which the cartridge is loaded has windows 1a formed on three sides.
The elastic body 2 is arranged outside the side wall 1 along the circumferential wall surface, and both ends of the elastic body 2 are attached to the side wall 1 by screws 3. The elastic body 2 is formed with projections 2a at three locations, and these projections 2a are formed on the window 1a.
It is habitual so that it can stick out into the film room.

FIG. 1 shows the loaded state of the large diameter cartridge 4 and FIG. 2 shows the loaded state of the small diameter cartridge 5. As can be seen from these figures, the elastic bodies 2 are different from each other. The protrusion 2a elastically presses the winding shafts 4a and 5a to help maintain the cartridges 4 and 5 in a predetermined posture. In FIG. 1B, the outer peripheral surface of the cartridge 4 seems to be in close contact with the inner wall surface of the side wall 1. However, in reality, there is a slight gap.
Further, as can be seen from FIGS. 1 (a) and 2 (a), not only the cartridges 4 and 5 have different diameters, but also the outer heights differ according to the film width.

A switch is constituted by the elastic contact pieces 6 and 7, and the contact piece 6 is attached to the elastic body 2. The contact piece 6 may be attached to the side wall 1 or another camera body component, but when the elastic body 2 is provided as in the present embodiment, both of them are elastic components, and therefore both are one component. It is preferable to manufacture in. A contactor 6a is formed at the tip of the contact piece 6, and the contactor 6a is inserted into the film chamber through the upper opening of the film chamber so as to contact the end faces of the cartridges 4, 5 in the axial direction. . The contact piece 7 is attached to the camera body part.

The lower side of the film chamber is closed by the bottom lid 8 of the camera. The bottom cover 8 is formed with a bearing portion 8a that fits on the winding shafts 4a, 5a of the cartridges 4, 5.
Further, a spring 8b is provided which is in contact with the end faces of the cartridges 4 and 5 in the axial direction. The films in the cartridges 4 and 5 are sequentially drawn out from the lower right portion to the right side in FIGS. 1B and 2B during photographing.

3 (a), 3 (b) and 3 (c) are explanatory views seen from the back of the camera, respectively. In FIG. 3 (a), a lamp or a lamp is attached to a finder 10 arranged above the camera body 9. Light emitting elements 11, 12, and 13 such as LEDs are provided, and in FIG. 3B, display windows 14 and 15 are provided above the camera body 9 and the viewfinder 10 is provided with the light emitting elements 12 and 13. Further, in FIG. 3C, display windows 14 and 15 are provided above the camera body 9, and light emitting elements 11, 12 and 13 are provided in the finder 10. Of these, the light emitting element 11 is for displaying the type of the film loaded, the light emitting element 12 is for distance measurement warning, and the light emitting element 13 is for power supply warning. Also, the display window 1
Reference numerals 4 and 15 are for displaying the type of the loaded film.

When loading the cartridges 4 and 5 in this embodiment, the bottom lid 8 is opened and the cartridges 4 or 5 are loaded.
Is inserted into the film chamber from below the camera body. At this time, in the case of the cartridge 5, the three protrusions 2 of the elastic body 2
Although it is only a little to push a in the radial direction, in the case of the cartridge 4, it is sufficiently pushed and inserted. After the insertion, the bearing portion 8a is fitted to the winding shaft 4a or 5a and the bottom lid 8 is closed. At this time, since the external height of the cartridge 5 is small, both end faces in the axial direction are pressed by the contactor 6a and the spring 8b of the contact piece 6, and the loading position is set to the position shown in FIG. ) Position is regulated. Therefore, the switch composed of the contact pieces 6 and 7 is not closed. On the other hand, in the case of the cartridge 4, since the external height is large, the biasing force of the spring 8b acts strongly to push the contact 6a further upward to bring the contact piece 6 into contact with the contact piece 7, and the switch is closed.

In this embodiment, the difference between the open / closed signals of the switch is displayed so that it can be observed from the outside of the camera. The case shown in FIG. 3A shows an example in which the light emitting element 11 is turned on when either one of the cartridges 4 and 5 is turned on, and is not turned on when the other is turned on.
When the cartridge 5 is loaded, a small field of view frame in the viewfinder 10 is used for shooting.
In the case of this example, it is preferable to turn on the light emitting element 11 when the cartridge 5 is loaded, and
It is even more effective if the edge of the small field frame is roughened, for example, so that when the light emitting element 11 is turned on, the field frame is made visible by the reflection of the light.

In the case shown in FIG. 3B, each display window 14,
The surface of 15 is a translucent surface of different colors, and the light emitting element is arranged inside. Therefore, for example, the cartridge 4
When the cartridge 5 is loaded, colored light can be recognized from the display window 14, and when the cartridge 5 is loaded, different colored light can be recognized from the display window 15. In this case, the type of the loaded film can be identified without looking into the finder 10 when the photograph is not taken. The case shown in FIG. 3 (c) is a case where both the case shown in FIG. 3 (a) and the case shown in FIG. 3 (b) are provided and whether the viewfinder 10 is viewed or not viewed. , When it is possible to identify.

Next, with reference to FIG. 4, an example in which the light emitting element 11 is turned on and a small field frame is made visible in the viewfinder when the cartridge 5 is loaded as described above will be described. This figure shows a bright frame type finder optical system, in which the light incident on the objective lens 16 passes through the half mirror 17 and the eyepiece 18 to the pupil 1.
Emit to 9. A target 21 is provided inside the optical component 20 for daylighting, and a large field frame window 21a and a small field frame window 21b are formed in the target 21, and light is transmitted only through these field frame windows, The surface of is not made to transmit or reflect.

Outside light can be taken in from the field frame window 21a through the optical component 20, but the optical component 20 is used by the field frame window 21b.
The surface 20a adjacent to is covered with a reflection coat so that outside light cannot be taken in and is a reflection surface for light from the inside. The shape of the reflecting surface 20a is a spherical concave surface, and a part of the spherical shape is shown by an imaginary line 20b. A hole 22a is formed in the center of the reflection mirror 22,
A light emitting element 23 that emits light when the above-described cartridge 5 is loaded is arranged therein, and a light shielding member is arranged on the side of the target lens 25 of the light emitting element 23.

In the above finder structure, since the light emitting element 23 is not turned on when the cartridge 4 is loaded, the large field frame in the finder can be observed by the pupil 19 by the external light as shown by the broken line, but the small field frame can be observed. Not done. On the other hand, when the cartridge 5 is loaded, the light emitting element 23 is turned on and is reflected by the reflecting surface 20a as shown by the solid line, so that a small field frame can be observed.

In the above embodiment, the bottom cover 8 is opened, and the cartridge is loaded in the film chamber along the axial direction of the winding shaft. However, the contact piece 6 has elasticity and the tentacle is used. 6
Since a is U-shaped, in FIG.
By providing 7 at a position offset by 90 degrees, the back cover of the camera can be opened and the cartridge loading operation can be performed in the radial direction. Further, if the contact piece 6 is provided with a spherical contactor, it can be loaded in the radial direction without changing the positions of the contact pieces 6 and 7. In addition, each of the above display windows 14,
15 may be provided on the top surface of the camera instead of the back surface.

Second Embodiment Next, a second embodiment of the present invention will be described with reference to FIGS. FIG. 5 is an explanatory view showing a loaded state of a film cartridge having a large width size, and FIG. 6 is an explanatory diagram showing a loaded state of a film cartridge having a small width size. The same components as those in the first embodiment are designated by the same reference numerals, and the bottom lid 8 shown in the first embodiment is not shown.

In this embodiment, the contact piece 6 does not serve as a switch contact piece, and the axial position of the cartridges 4, 5 is restricted in the film chamber by the spring 8 of the bottom cover 8.
It has only the function as a spring member performed together with b.
Therefore, in this embodiment, the contact piece 7 shown in the first embodiment is used.
Not equipped. In the case of the present embodiment, the protrusion 26a provided at one end of the lever 26 comes into contact with the axial end surface of the cartridge, and has a role as a contact for detecting the loaded cartridge.

In the present embodiment, the lever 26 is rotatably attached to the shaft 27 provided on the camera body, and is provided with a left turning habit by a spring (not shown).
The left-handed rotation is regulated at a position slightly left-handed as compared with the state shown in FIG. As described above, the lever 26 is provided with the protrusion 26a at one end,
Two mask portions 26b and 26c are formed at the other end. In the case of this embodiment, the display window 14 indicates that the cartridge 5 is loaded, and the display window 15 indicates that the cartridge 4 is loaded. It goes without saying that these display windows 14 and 15 are provided in a place where they can be observed from outside the camera.

Since this embodiment is constructed as described above, as shown in FIG. 5, when the cartridge 5 accommodating a wide film is loaded, the lever 26 is caused by the axial end surface of the cartridge 5. Is largely turned right, the mask portion 26b covers the display window 14, and the mask portion 26c exposes the display window 15, so that the observer can see the cartridge 5
To recognize that it is loaded, and to take a picture, select a large field frame in the viewfinder to inform that the picture should be taken. Similarly, when the cartridge 4 containing a narrow film is loaded, the lever 26 is slightly turned right as shown in FIG. 5, the mask portion 26c covers the display window 15, and the mask portion 26b displays. Since the window 14 is exposed, a small field frame is selected when shooting. Also in the case of this embodiment, if the projection 26a is formed in a spherical shape, the back cover of the camera can be opened and the cartridge can be loaded in the radial direction.

[0027]

As described above, according to the present invention, in a film-combined camera of different sizes, the cartridge can be loaded without any special shape restriction and regardless of the insertion direction of the cartridge at the time of loading. The type of cartridge that is present can be automatically identified and displayed.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a loaded state of a film cartridge having a large width size in the first embodiment, and FIG. 1A is a front view of a film chamber partially cut away. (B) is the figure which crossed in the AA line of FIG.

FIG. 2 is an explanatory view showing a loaded state of a film cartridge having a small width size in the first embodiment, and FIG. 2A is a view seen from the front with a part of the film chamber cut away; (B) is the figure which cut | disconnected in the BB line of FIG.

FIG. 3 is an explanatory diagram showing a display example in the first embodiment, and FIGS. 3A, 3B and 3C show different examples.

FIG. 4 is an explanatory diagram of a finder optical system suitable for being applied to the first embodiment.

FIG. 5 is an explanatory view showing a loaded state of a film cartridge having a large width size in the second embodiment.

FIG. 6 is an explanatory view showing a loaded state of a film cartridge having a small width size in the second embodiment.

[Explanation of symbols]

 1 Side wall of film chamber 1 1a Window 2 Elastic body 2a Projection part 3 Screw 4,5 Cartridge 4a, 5a Winding shaft 6,7 Contact piece 6a Tactile 8 Bottom lid 8a Bearing part 8b Spring 9 Camera body 10 Finder 11, 12, 13, 23 Light emitting element 14, 15 Display window 16 Objective lens 17 Half mirror 18 Eyepiece 19 Pupil 20 Optical component 21 Target 22 Reflective mirror 24 Light-shielding member 25 Target lens 26 Lever 26a Projection 26b, 16c Mask part 27 Axis

Claims (5)

[Claims] 1. A touch which is arranged movably in a film chamber and which contacts an end face in the film winding direction of a cartridge to be loaded and which is positioned in at least two positions in the winding direction depending on the kind of the cartridge. A heterogeneous device including a child, a display unit capable of identifying the type of the cartridge loaded according to the position of the toucher, and a viewfinder having a field frame corresponding to the loaded cartridge. A film-sized dual-purpose camera. 2. The tentacle is provided at one end of a lever, the display means has a display section for each type of cartridge, and movement of the lever causes any one of the display sections to display. 2. The film-combined camera of different sizes according to claim 1, wherein the cartridge type can be identified. 3. The cartridge is provided with the touch piece provided on a contact piece of a switch, and the display means is an illumination display means having a light emitting element. The type of the cartridge is identified by the illumination according to the contact state of the switch. The film-combined camera of different sizes according to claim 1, wherein the film-combined camera has different sizes. 4. The contact piece of the switch is integrally formed with an elastic means for elastically pressing the side surface of the cartridge toward the winding shaft in the film chamber to maintain the posture of the cartridge. A film-combined camera of different sizes according to claim 3. 5. The light emitting element emits light corresponding to a specific cartridge, and the viewfinder causes a field frame corresponding to the cartridge to reflect the light of the light emitting element toward an observing side. The film-combined camera of different sizes according to claim 3 or 4, characterized in that it is made.