JP2678589B2 - Light-shielding structure of camera with panoramic camera - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a panoramic photographing device capable of changing a screen size between a normal size and a panoramic size by advancing and retracting a light shielding plate provided in front of an aperture into and out of an optical path. The present invention relates to the structure of the light shielding plate of the camera.

[0002]

2. Description of the Related Art As a camera for easily taking pictures, a camera equipped with an autofocus device and a variable focus device capable of switching a focal length between a telephoto shooting and a wide-angle shooting without changing a lens is widely used.

This type of popular camera generally uses a 35 mm size roll film and has a full screen size (24 mm).
It is used as a half size (24 mm x 17.5 mm) obtained by dividing the full size in half. In recent years, for making photos more interesting and for special purposes,
There is a screen size that cuts the top and bottom of the full size to make it into a panoramic size (about 16 mm x 36 mm) for use.

In such a popular type camera capable of performing panoramic photography, it is convenient and also more enjoyable to take full-size photography (normal photography) in addition to panoramic photography. In order to be able to select normal shooting and panoramic shooting, for example, a light blocking plate that can move forward and backward in the optical path is provided in front of the aperture, and the light blocking plate is inserted into the optical path to perform panoramic shooting, and then from the optical path. Evacuate for normal shooting.

[0005]

However, since the above-mentioned light-shielding plate is arranged in front of the aperture,
There are the following problems. Although the film surface is located in the immediate vicinity of the rear of the aperture, the photographing screen is defined by the peripheral edge of the aperture during normal photographing, so that the boundary of the photographing range in the original photograph image taken during normal photographing becomes clear. However, in panoramic photography in which a part of the optical path is blocked by the light shielding plate, the edge of the light shielding plate may be separated from the film surface. It may be damaged.

In particular, in a camera equipped with a variable focus device,
Since the angle of view changes depending on the focal length, if the distance between the film surface and the edge of the light shield is large, telephoto shooting is possible.
Depending on the time and wide-angle or standard shooting,
The image range will be displaced. Therefore, when performing panoramic shooting using the light shielding plate, the size of the panoramic print may differ between the telephoto shooting and the wide-angle shooting.

Therefore, an object of the present invention is to provide a camera having a variable focus device, which can clearly expose a photographing range in a photographic original image even when photographing is performed by changing the screen size using a light shielding plate. In other words, it is an object of the present invention to provide a light-shielding plate structure for a camera with a panoramic photographing device that can make the image range on the film surface substantially constant even when the angle of view is changed.

[0008]

As a technical means for achieving the above object, a light-shielding plate structure of a camera with a panoramic photographing device according to the present invention is provided in front of an aperture.
Providing a light-shielding plate that moves forward and backward with respect to the optical path to the film surface,
When the light shielding plate enters the optical path and covers a part of the aperture, a horizontal double-sided size panoramic shooting is performed, and when the light shielding plate is retracted from the optical path, normal shooting is performed. At least the leading edge of the shading plate enters the frame of the aperture, and the leading edge is
The film side than the front surface of the member that forms the aperture frame
It is characterized by being positioned at and approaching the film surface.

Further, as a structure in which the tip edge of the light shielding plate can be easily inserted into the frame of the aperture, it is moved back and forth with respect to the optical path to the film surface by rotating around the axis along the side of the aperture. Provide a light shield to
A panoramic shot is made by covering the part of the aperture by turning the shading plate, and taking a panoramic shot with a horizontally long screen size, and taking a normal shot with the tip of the shading plate positioned forward and away from the aperture. during, and at least a tip edge of the light shielding plate enters into the framework of the aperture, before the member tip edge forming the aperture frame
It is characterized by being positioned closer to the film than the surface and approaching the film surface.

During panoramic photography, the shading plate covers a part of the aperture, and a part of the film is shielded from light, so that the photographic screen size becomes a horizontally long panoramic size. Since the light-shielding plate covers a part of the aperture, the leading edge of the light-shielding plate is moved into the frame of the aperture to approach the film surface. The distinction between the edge and the subject becomes clear, and the shooting range becomes clear. Further, when the tip of the light shielding plate is separated from the aperture, the aperture is not opened and does not block the optical path, so that the image is taken with a normal screen size regulated by the aperture.

Further, according to the light-shielding plate structure of the present invention, in the camera equipped with the variable focus device in which the focal length of the taking lens changes as the movable lens barrel moves back and forth with respect to the fixed lens barrel, the side of the aperture is provided. The fixed lens barrel is provided with a light-shielding plate rotatable about an axis along which the panorama image is taken to cover a part of the aperture and have a horizontally long screen size, and the tip of the light-shielding plate. There performs imaging by selecting a normal shooting state opening the aperture positioned in front, at the time of the panoramic photographing, at least the tip edge of the light shielding plate enters into the frame of the aperture, the tip edge aperture From the front of the member that forms the frame
It is characterized by being positioned on the film side and approaching the film surface.

In a camera equipped with a variable focus device,
Although the angle of view for shooting is changed by changing the focal length, the leading edge of the shading plate enters the frame of the aperture and approaches the film surface, so that the film surface is not affected by the change in angle of view. The exposure range can be constant. Therefore, even in panoramic photography, the same print size can be achieved without the image range on the film surface changing with the focal length.

Moreover, since the light shielding plate is provided on the fixed lens barrel, the rotation axis of the light shielding plate can be positioned in front of the aperture frame. Therefore, the member for forming the aperture at the tip end edge of the light shielding plate by the rotation. The front side surface of the light shielding plate can be positioned rearward, and the tip portion of the light shielding plate can be easily inserted into the frame of the aperture.

Further, a step portion is formed from the tip end portion to the central portion of the light shielding plate so as to have a thickness appropriately thicker than a portion connected to the rotation axis of the light shielding plate, and the step portion is an aperture during panoramic photographing. When entering the frame, the leading edge of the shading plate forms a film more than the front surface of the member forming the aperture frame.
It is characterized by being positioned on the side and approaching the film surface.

By rotating the stepped portion so as to be located inside the aperture frame, the tip edge of the light shielding plate enters the aperture frame and the light shielding plate approaches the film surface.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION The light-shielding plate structure of a camera with a panoramic image capturing apparatus according to the present invention will be specifically described below with reference to the preferred embodiments shown in the drawings.

FIG. 3 is a schematic exploded perspective view of the panoramic device. As shown in FIGS. 1, 2, and 4, the aperture 2 is shown in FIG.
An upper light-shielding plate 4 and a lower light-shielding plate 6 are rotatably supported by a fixed lens barrel 8 around the axes 4a and 6a along the upper side and the lower side, respectively. The aperture 2 is the light shielding plate 4,
The rotation of 6 partially covers the screen, and the screen size is changed from the full size when the screen is not covered to the panoramic size.

The light-shielding plates 4 and 6 have shafts 4 at their base ends.
a, 6a, and from the central part to the tip of these shading plates 4, 6 are formed thicker than the parts connected with the shafts 4a, 6a to form step parts 4b, 6b, respectively. There is.
Then, in a state in which these light shielding plates 4 and 6 are superposed on a part of the aperture 2, the step portions 4b and 6b are inserted into the frame of the aperture 2 as shown by imaginary lines in FIGS. 1 and 4. is there.

The fixed lens barrel 8 is fixed to the camera body, and a rear group lens, which is a fixed side lens (not shown), is attached. In addition, the fixed lens barrel 8 holds a front lens group 10 which is a moving side lens, and a movable lens barrel 12 which is movable in the optical axis P direction with respect to the fixed lens barrel 8 is accommodated. By moving the movable lens barrel 12 back and forth with respect to the fixed lens barrel 8, the rear lens group and the front lens group 10 move in the optical axis direction while maintaining a predetermined optical relationship, and the focal point of the photographing lens constituted by these lens groups is moved. The distance is changed, for example the moving lens barrel
When 12 moves forward to the foremost part, telephoto shooting is performed, and standard shooting or wide-angle shooting is performed at a position slightly advanced from the last part. Therefore, it is conveniently located at the retracted position, and the front end of the movable lens barrel 12 is located at substantially the same position as the front end face of the camera.

As shown in FIG. 3, an actuating means 20 for the light shielding plates 4 and 6 is provided on the inner side surface and the rear portion of the fixed lens barrel 8. A drive lever 22 having a central portion rotatably supported by a shaft 21 is provided on the upper portion of the inner side surface of the fixed lens barrel 8, and the upper light shielding plate 4 is rotated on the same shaft 21 as the drive lever 22. A main actuating lever 23 for moving is supported at its central portion.

The input end 22a of the drive lever 22 extends in the direction of the aperture 2, and the drive end 22b extends forward. An engaging portion 22c is formed at an appropriate position on the drive end 22b side. The drive end 23a of the main operating lever 23 is in contact with the front surface of the upper light-shielding plate 4, and the input end
23b extends forward, and this input end 23b and drive lever 22
A charge spring 24 composed of a tension coil spring is stretched over the driving end portion 22b of the. The restoring force of the charge spring 24 is urged in the direction in which the drive end 22b and the input end 23b approach each other. The engaging portion 22c of the drive lever 22 is in contact with the control tongue piece 23c extending from the main operating lever 23.

A notch 23d is formed at an intermediate position between the shaft 21 of the main operating lever 23 and the input end 23b. Fixed lens barrel 8
At the lower part of the inner side surface of the, there is provided a sub-operation lever 26 rotatably supported about the shaft 25 at the central portion, and the engagement pin 26b planted at the input end portion 26a thereof is cut off as described above. 23
engaged with d. The drive end 26c of this sub-actuation lever 26
Touches the front surface of the lower light-shielding plate 6. An engaging pin 27 is planted at a position deviated from the shaft 25 of the sub-actuating lever 26 so as to be directed toward the central portion of the fixed lens barrel 8. Also the axis
A return spring 28 composed of a tension coil spring is bridged between the fixed lens barrel 8 and the intermediate position between the drive end 26c and the drive end 26c. It is urged to rotate the sub-operation lever 26 in a direction away from.

On the shafts 4a and 6a of the upper light shielding plate 4 and the lower light shielding plate 6, respectively, a return spring 29 composed of a torsion coil spring,
30 is wound, and the restoring force of these return springs 29, 30 is urged to rotate the light shielding plates 4, 6 in the direction in which they are normally located at the photographing position.

As shown in FIG. 3, at the rear of the fixed lens barrel 8, there is provided an operating member 31 which is constructed by integrally forming an input member 32 and a driving member 33 so as to be vertically slidable. .

The side end of the driving member 33 is bent forward, and a locking projection 34 is formed at the center of the bent portion, and is engaged with the locking portion 14 formed on the camera body. I'm taking it off. As shown in FIG. 3, the locking portion 14 has
A plurality of notches are formed, and the notches and the locking projections 34 are disengaged. In addition, the notch of the locking portion 14 is an N notch 14a for normal photographing, which is located at a higher position,
It is a P-cut portion 14b located at the lower position for panoramic photography. Further, the bent portion in which the locking projection 34 is formed has elasticity by itself, and when the operating member 31 slides, the elasticity causes the locking projection 34 to be cut into the N notches 14a and P. It is adapted to engage with and disengage from the notch 14b.

A drive rod portion 35 is provided on the upper end of the drive member 33. As shown in FIGS. 1 and 2, the drive rod portion 35 is provided on the upper surface of the input end portion 22a of the drive lever 22. Abutting. The contact state is maintained by the restoring force of the charge spring 24.

An operation protrusion 36 is provided on the rear surface of the input member 32. As shown in FIG.
It is located on the rear surface of the camera body and in the plane in which the film runs. Therefore, when the film is loaded, the operation protrusion 36 is hidden by the film. Two locking holes 37a, 37b are formed in the upper part of the input member 32, and the one positioned higher than that is the P locking hole 37a for panoramic photography and the one positioned lower. Is an N locking hole 37b for normal photographing. And
As shown in FIG. 6, these locking hole portions 37a and 37b are positioned on the window portion 38 formed on the rear surface of the camera body and above the film traveling area by sliding the operation member 31. There is. Further, the upper end of the input member 32 is provided with two display sections 39a and 39b vertically, the upper one being the P display section 39a for panoramic photography and the lower one being the lower display. It serves as an N display section 39b for normal photographing.
Then, these display portions 39a and 39b are moved by the operation member 31 as shown in FIG.
It is located in a display window 41 provided on the side of.

Further, a spare E notch 14c is formed below the P notch 14b formed at the bent portion of the driving member 33, and the operating member 31 is further cut from the P notch 14b. When it is slid downward, the engaging projection 34 engages with the E notch 14c. Further, a switch portion 42 is arranged below the drive member 33, and when the locking projection 34 engages with the E notch portion 14c, the switch portion 42 is turned on.

As shown in FIGS. 3 and 5, the rear cover 43 of the camera is provided with a positioning projection 44 which is engaged with and disengaged from the P locking hole 37a and the N locking hole 37b. As shown in FIG. 5, the tip of the positioning protrusion 44 is formed into an acute angle to form an insertion inclined surface 44a, while the rear end edge of each locking hole 37 is formed as shown in FIG. In addition, the receiving inclined surface 37c is formed by being appropriately chamfered. Therefore,
As shown in FIG. 5, even when the locking hole portion 37 is deviated from the positioning protrusion portion 44, by closing the back cover 43, the insertion inclined surface 44a and the receiving inclined surface 37c are engaged. And the positioning protrusion 44 slides the operating member 31,
It will be inserted into one of the locking hole portions 37.

As shown in FIGS. 3 and 4, the side surface of the movable lens barrel 12 extends from the rear end portion to the central portion of the guide groove 45.
Are formed. The position of the guide groove 45 is a position where the engaging pin 27 of the sub-operation lever 26 when the light shielding plates 4 and 6 are located at the panoramic photographing position fits in the guide groove 45. Further, the upper end edge portion 45a of the entrance portion of the guide groove 45 is appropriately chamfered or formed in an arc shape so that the engagement pin 27 is guided into the guide groove 45 along the upper end edge portion 45a. .

FIGS. 7 to 9 show the display in the case of performing panoramic photography. In the case where the operation member 31 is provided with the display portion 39, the P display portion 39a is positioned in the display window 41 as described above. Normal shooting or panoramic shooting depending on whether the N display portion 39b is located.

FIG. 7 shows what is displayed in the finder 40 for panoramic shooting display. In the finder 40, an N field frame 40a for normal shooting and a P field frame 40b for panoramic shooting are shown.
And are displayed. It is more preferable that the visual field frames 40a and 40b are turned on according to the photographing mode. That is, when the normal shooting is selected, the N visual field frame
40a is turned on, this is recognized, and when the panoramic shooting is selected, the P field frame 40b is turned on. It is also possible to dispose a display section 40c in which the characters such as "PANORAMA" are lit in the finder 40 so that the display section 40c is lit when panoramic photography is selected. The viewfinder 40 has a field frame 40 for close-up photography.
d, target mark 40e, etc. are provided.

Further, for example, on the upper surface of the camera, as shown in FIG. 8, a liquid crystal display unit (LCD) for displaying various kinds of information.
46 is provided, and the LCD 46 is schematically shown in FIG. The LCD 46 is provided with a film number display section 46a, a strobe issuing display section 46b, a self-timer shooting display section 46c, a distant view shooting display section 46d, a date display section 46e, and a panoramic shooting display section 46f. When the panoramic photography is selected, the panoramic photography display section 46f can be turned on to notify that effect.

The P visual field frame 40b in the finder 40, the display section 40c, the panoramic photographing display section 46f of the LCD 46, etc.
If a switch that is turned on by sliding the operating member 31 is provided, it can be turned on by sliding the operating member 31.

As shown in FIG. 8, a release button 47, a focal length switching button 48, etc. are provided on the upper surface of the camera. Further, as shown in FIG. 6, the camera body is provided with a spool chamber 16 and a cartridge chamber 18 with the aperture 2 interposed therebetween, and the roll film housed in a cartridge (not shown) covers the aperture 2. ,
The cartridge is loaded from the cartridge chamber 18 to the spool chamber 16.

As shown in FIGS. 1, 2 and 4, the upper light-shielding plate 4 and the lower light-shielding plate 6 or both of them are
An imprinting LCD 49 is provided so that the date and time of photographing, a memo, or the like can be imprinted on a photograph.

FIG. 10 is a plan view of the photographic master plate 50 taken on a roll film, in which a predetermined number of frames 51 are taken in succession. The portion indicated by the solid line of the frame 51 is the full-size image portion 52, and the portion sandwiched by the two-dot chain line is the panoramic size image portion 53. When panoramic photography is performed, a light-shielding portion 54 is formed between the full-size image portion 52 and the panoramic-size image portion 53 so that the image is not exposed and the image does not appear.

The operation of the light-shielding plate structure of the camera with a panoramic photographing device according to the present invention constructed as described above will be described below.

Selection between normal photography and panoramic photography is made before loading the film. Before the film is loaded, the operation projection 36 located on the running surface of the film is placed at the lower position to select the panoramic shooting, and when placed at the upper position, the normal shooting is selected. And when you load the film,
The selected shooting mode cannot be changed until the operation protrusion 36 is hidden by the film and the shooting of the film is completed.

Further, when the operation projection 36 is operated, even if the operation projection 36 is positioned at an intermediate position between the normal photographing mode and the panoramic photographing mode without being surely switched, if the back cover 43 is closed for photographing. , One of the shooting modes is selected. That is, when the operation protrusion 36 is operated, the operation member 31 slides in either the up or down direction, but when any one of the photographing modes is surely selected, the input member 32.
The locking hole portions 37a and 37b according to the selected mode among the P locking hole portion 37a and the N locking hole portion 37b formed in the above are positioned in the window portion 38 on the rear surface of the camera body. However, when the photographing mode is not surely selected, either the P locking hole portion 37a or the N locking hole portion 37b is displaced in the window portion 38. FIG. 5 shows an outline of this state. When the middle portion of the P locking hole portion 37a and the N locking hole portion 37b is located in the window 38, the back lid 43 is closed when the back lid 43 is closed. The positioning protrusion 44 that is provided so as to face the intermediate portion. If the back cover 43 is closed in this state, the insertion inclined surface 44a at the tip of the positioning protrusion 44 and the receiving inclined surface 37c of either of the locking holes 37a, 37b come into contact with each other, and the operation member 31 is moved up or down. The positioning protrusion 44 is pushed in while sliding in the direction of. Therefore, the operation member 31 is reliably positioned at either the normal shooting mode or the panoramic shooting mode.

First, the normal photographing will be described.

FIG. 2 is a schematic view showing the states of the light-shielding plates 4 and 6 and the actuating means 30 at the time of normal photographing. The light-shielding plates 4 and 6 are turned to the positions apart from the aperture 2 with their front ends facing forward. It is in an open state. Therefore, the light shielding plates 4 and 6 are not in the optical path, and the light rays that have passed through the taking lens pass through the aperture 2 and reach the film surface, so that the full-size image area 52 displays an image as shown by the solid line in FIG. Can be obtained.

At the time of normal photographing, the locking projection 34 of the operating member 31 is engaged with the N notch portion 14a, and the N display portion 39b faces the display window 41. Therefore, the display window 41 on the back surface of the camera displays that normal shooting is performed. It should be noted that, for example, this display can be made to show the character "NORMAL" which means normal shooting, or to be displayed with a color different from that at the time of panoramic shooting. Moreover, without providing such display portions 39a and 39b, for example,
It is also possible to dispose a display LED instead of the display window 41 so that it is lit in conjunction with the operation of the release button only during panoramic photography.

At the time of normal photographing, as described above, the tip portions of the light shielding plates 4 and 6 are located in the front and are in the state shown in FIG. FIG. 4 shows the case where the movable lens barrel 12 is in the photographing position,
When the taking lens is retracted for mobile use, the moving lens barrel
Since the lens 12 is further retracted from this photographing position to the retracted position, the tips of the light shielding plates 4 and 6 located in the retracted region of the movable lens barrel 12 come into contact with the movable lens barrel 12 and the movable mirror 12 is moved. It may hinder the retreat of the torso 12. However, in this case, as the movable lens barrel 12 moves backward, the shading plates 4 and 6 are moved to the positions shown in FIG.
Since each of them is rotated from the position shown in FIG. 1 and overlaps a part of the aperture 2 as shown in FIG. 1, it does not hinder the backward movement of the movable lens barrel 12.

That is, when the movable lens barrel 12 is retracted to an appropriate position, the upper end edge portion 45a of the entrance of the guide groove 45 formed in the movable lens barrel 12 is engaged with the engaging pin provided on the sub-operation lever 26.
Clash with 27. When the movable lens barrel 12 is further retracted, the engagement pin 27 is pushed down along the upper edge 45a, and the guide groove 45
Will be housed inside. When the engagement pin 27 is pushed down, the auxiliary actuating lever 26 rotates about the shaft 25 in the counterclockwise direction in FIG. 2 against the restoring force of the return spring 28. By this rotation, the drive end portion 26 of the sub-actuation lever 26 is
c rotates in the same direction and resists the restoring force of the return spring 30 to rotate the lower light-shielding plate 6 about the shaft 6a in the clockwise direction in FIG. On the other hand, the main operating lever 23 having the notch 23d engaged with the engaging pin 26b planted in the input end 26a is rotated by the rotation of the auxiliary operating lever 26, and the main operating lever 23 is centered on the shaft 21. As shown in FIG. 2, it rotates clockwise. This rotation causes the drive end portion 23a of the main operating lever 23 to rotate in the same direction, resisting the restoring force of the return spring 29, and causing the upper light-shielding plate 4 to move toward the shaft 4a.
2 is rotated counterclockwise in FIG. This rotation of the light blocking plates 4 and 6 causes the light blocking plates 4 and 6 to retract from the retracted region of the movable lens barrel 12 as shown in FIG. The position of the drive rod portion 35 remains the position shown in FIG.

When the movable lens barrel 12 advances from the retracted state and the engagement pin 27 is disengaged from the guide groove 45, the return spring is released.
The restoring force of 28 causes the sub-actuating lever 26 to return from the position shown in FIG. 1 to the position shown in FIG.
It returns to the position shown in FIG. Also,
When the sub operating lever 26 returns, the main operating lever 23 also rotates around the shaft 21 and returns to the position shown in FIG. 2, so that the restoring force of the return spring 29 of the upper light shielding plate 4 returns to the position shown in FIG. To do. By this return of the light shielding plates 4 and 6, normal photographing can be performed.

Next, the operation when the panoramic photography is selected will be described.

When the operation projection 36 is operated to select the panoramic photography, the operation member 31 slides downward and the locking projection 34 becomes P.
It engages with the cut 14b. When the operating member 31 slides, the drive rod portion 35 pushes down the input end portion 22a of the drive lever 22 from the position shown in FIG. 2 to the position shown in FIG. For this reason,
The drive lever 22 rotates about the shaft 21 in the clockwise direction in FIG. One end of the charge spring 24 is hooked on the drive end 22b of the drive lever 22, and the other end of the charge spring 24 is hooked on the input end 23b of the main operating lever 23. When 22 rotates clockwise in FIG. 2, the charge spring 24 expands, and the restoring force of the charge spring 24 causes the main operating lever 23 to rotate clockwise in FIG. Due to the rotation of the main operating lever 23, the upper light-shielding plate 4 which is in contact with the drive end portion 23a is rotated counterclockwise in FIG. 2 against the restoring force of the return spring 29.

On the other hand, the rotation of the main operating lever 23 causes the auxiliary operating lever 26, in which the engaging pin 26b engaging with the notch 23d is planted, against the restoring force of the return spring 28. 2 is rotated counterclockwise in FIG. Therefore, the lower light-shielding plate 6 that is in contact with the drive end portion 26c of the sub-operation lever 26 rotates in the clockwise direction in FIG. 2 against the restoring force of the return spring 30.

The upper light shield plate 4 and the lower light shield plate 6 are closed by the rotation of the upper light shield plate 4 and the lower light shield plate 6 to cover the upper and lower portions of the aperture 2 as shown in FIG. Therefore, the light rays that have passed through the shooting lens during shooting are blocked at the upper and lower parts of the film, and the upper and lower parts are not exposed. Therefore, as shown in FIG. 10, the light shielding part 54 is formed and the panoramic size image part 53 is formed.
You can get a panorama size photo master 50 consisting of only.

Moreover, in the state shown in FIG. 1, due to the position of the drive rod portion 35 and the restoring force of the charge spring 24,
Since the upper light-shielding plate 4 is pressed against the aperture 2 and the lower light-shielding plate 6 is also pressed against the aperture 2, these light-shielding plates 4 and 6 and the aperture 2 are pressed.
There is no gap between it and the peripheral edge. Therefore, the light rays that have passed through the taking lens are reliably blocked by the light blocking plates 4 and 6.

Further, as shown in FIG. 1, the light blocking plates 4 and 6 are provided.
The respective stepped portions 4b and 6b enter into the frame of the aperture 2, and the tip portions of the light shielding plates 4 and 6 come closer to the film surface than the front side surface of the member forming the aperture 2. Therefore, the photographing range regulated by the tip edges of the light-shielding plates 4 and 6 becomes clear in the photographic original image. Even when the focal length of the taking lens is changed and the angle of view is changed, the image positions of the leading edges of the light shielding plates 4 and 6 with respect to the film surface are almost constant, so that the image range of the photographic original plate is almost constant. Become.

When the panoramic photographing is selected, the operation member 31 slides downward so that the P display portion 39a is located facing the display window 41. Therefore, for example, "PANORAMA" meaning panoramic photographing is displayed on the P display portion 39a. It is possible to recognize that it is a panoramic shooting if the characters are displayed and the color is different from that during normal shooting.

During panoramic photography, the light-shielding plates 4 and 6 are in a closed state, so the imprinting LCD 49 provided on the light-shielding plates 4 and 6 faces the upper and lower light-shielding portions 54 of the film.
Then, in conjunction with the release, information such as a desired memo and date is printed on the light shielding portion 54 of the film from the imprinting LCD 49. In this case, the selection of whether to imprint a memo or the date is made by sliding the operating member 31 and engaging the locking projection 34 with the E notch portion 14c to turn on the switch portion 42. Alternatively, the camera may be provided with a switch for making this selection, and the switch may be operated.

The LCD 49 for imprinting is provided with the light-shielding plates 4 and 6.
However, it may be provided on the back cover 43. In addition, it may be required to imprint the date etc. in the printed image, so the imprint LC
The D49 has two types, one for full size and one for panoramic size. In panorama shooting mode, panorama shooting LCD
It is also possible to activate the LCD for normal photographing in the normal photographing mode. It should be noted that if this switching is performed in conjunction with the sliding of the operating member 31, the operation will be simple.

To change from panoramic photography to normal photography, the operation projection 36 is moved upward. This allows the operation member
The drive rod 35 of 31 moves from the position shown in FIG. 1 to the position shown in FIG. For this reason, the drive lever 22 and the main operating lever 23 become free, and the upper light-shielding plate 4 is rotated counterclockwise in FIG. 1 by the restoring force of the return spring 29, and this rotation causes the main operating lever 23 to rotate. Will rotate counterclockwise in FIG. Since the notch 23d and the engagement pin 26b are engaged with each other, the rotation of the main operating lever 23 causes the sub operating lever 26 to rotate about the shaft 25 in the clockwise direction in FIG. Then, the restraint of the lower light shielding plate 6 is released. Therefore, due to the restoring force of the return spring 30, the lower light-shielding plate 6 rotates about the shaft 6a in the counterclockwise direction in FIG. 1 to the position shown in FIG. When the light shielding plates 4 and 6 are rotated, as shown in FIG.
Since the state is as shown in (3), it is used for normal shooting as described above.

[0057]

As described above, according to the structure of the shading plate of the camera with the panoramic photographing device according to the present invention, panoramic photographing can be performed with the leading edge of the shading plate as close as possible to the film surface. Therefore, the photographing range of the original photographic plate exposed by the edge portion of the light shielding plate becomes clear. In particular, in a camera equipped with a variable focus device, when a part of the aperture is covered with a light shielding plate for photographing, the image range on the film surface may be displaced even if the focal length is changed. Without, you can get a certain panoramic size print.

[Brief description of the drawings]

FIG. 1 is a schematic side view of a mechanism for driving a light shielding plate having a structure according to the present invention, showing a state during panoramic photography.

FIG. 2 is a schematic side view of a mechanism for driving a light shielding plate having a structure according to the present invention, showing a state during normal shooting.

FIG. 3 is an exploded perspective view showing an outline of a light shielding plate structure of a camera with a panoramic image capturing apparatus according to the present invention.

FIG. 4 is a side view showing the relationship between the movable lens barrel and the light blocking plate during normal shooting.

5 is a cross-sectional view taken along line VV in FIG. 3, showing a relationship with a back cover.

FIG. 6 is a rear view of the camera body with the back cover removed of the camera including the light shielding plate structure according to the present invention.

FIG. 7 is a view showing a field frame in a viewfinder of a camera provided with a light shielding plate structure according to the present invention.

FIG. 8 is a schematic rear perspective view of a camera including the light shielding plate structure according to the present invention.

FIG. 9 is a schematic plan view for explaining the contents displayed by the liquid crystal display unit.

FIG. 10 is a plan view of a photographic original plate, in which a solid line indicates a full-size image part and a two-dot chain line indicates a panoramic-size image part.

[Explanation of symbols]

 2 Aperture 4 Upper light shield 6 Lower light shield 4a, 6a Shaft 4b, 6b Step 8 Fixed lens barrel 12 Moving lens barrel 14 Locking portion 14a N notch 14b P notch 20 Actuator 22 Drive lever 23 Main actuation Lever 24 Charge spring 26 Sub-operation lever 27 Engagement pin 29, 30 Return spring 31 Operating member 34 Locking projection 35 Drive rod 36 Operating projection 37a P Locking hole 37b N Locking hole 38 Window 39a P Display 39b N display section 41 Display window 42 Switch section 43 Back cover 44 Positioning projection 45 Guide groove 46 LCD display 50 Photo original plate 52 Full size image part 53 Panorama size image part 54 Light shielding part

Claims (4)

(57) [Claims] 1. A panorama having a horizontally long screen size in which a light-shielding plate that advances and retreats with respect to an optical path to a film surface is provided in front of the aperture, and the light-shielding plate enters the optical path and covers a part of the aperture. performs photographing, performs normal shooting in a state where the light shielding plate is retracted from the optical path, in the panoramic photographing, at least the tip edge of the light shielding plate enters into the frame of the aperture, the tip edge UPPER
Located closer to the film than the front surface of the member that forms the frame
A light shield structure for a camera with a panoramic shooting device, which is characterized in that it comes close to the film surface. 2. A light shielding plate is provided which advances and retreats with respect to an optical path reaching the film surface by rotating about an axis along the side of the aperture, and by rotating the light shielding plate, a part of the aperture is covered to be horizontally long. When taking a panoramic shot, take a panoramic shot with a different screen size, and perform normal shooting with the tip of the shading plate positioned forward and away from the aperture.At the time of panoramic shooting, at least the edge of the shading plate is within the aperture frame. It enters in, the tip edge UPPER
Located closer to the film than the front surface of the member that forms the frame
A light-shielding plate structure for a camera with a vanorama photographing device, which is characterized in that it comes close to the film surface. 3. A camera provided with a variable focus device in which the focal length of a taking lens changes as the movable lens barrel moves back and forth with respect to a fixed lens barrel, and is rotatable about an axis along a side of an aperture. A fixed light shield plate is installed on the fixed lens barrel, and by rotating the light shield plate, a panoramic shot with a horizontally long screen size covering a part of the aperture is made, and the front end of the light shield plate is positioned in front to open the aperture. and performs normal photographing and select the shooting of state, at the time of the panoramic photographing, at least the tip edge of the light shielding plate enters into the frame of the aperture, the tip edge UPPER
Located closer to the film than the front surface of the member that forms the frame
A light shield structure for a camera with a panoramic shooting device, which is characterized in that it comes close to the film surface. 4. A step portion is formed from the front end portion to the central portion of the light shielding plate so as to have a thickness appropriately thicker than a portion connected to the rotation axis of the light shielding plate, and the step portion is formed of an aperture during panoramic photography. By entering into the frame,
The film side than the front surface of the member that forms the aperture frame
The light-shielding plate structure for a camera with a panoramic photographing device according to claim 2 or 3, wherein the light-shielding plate structure is positioned at a position close to the film surface.