JPH06110108A - Finder visual field frame changeable camera - Google Patents

Abstract

PURPOSE:To reduce a space for retreating in photographing and to miniaturize the whole of a finder by specifying of each movable dividing frame so as to make at least a pair of sides opposite to a second picture frame size discontinuous. CONSTITUTION:A standard photographing picture frame size S1 is displayed by a fixing frame 12. A lever 19 is slid to the right in pseudo panoramic photographing and the pin 14a of a movable frame 14 is abutted on the slope 19a of the top end of the lever 19 and depresses the pin 14a so that the movable frames 13 and 14 are turned in a direction where they approach each other against the pressing force of a spring 18. The regulating parts 13b and 14b of the movable frames 13 and 14 are inserted into the ahead of the fixing frame 12 by the turn, the visual field is blocked by the regulating parts 13b and 14b and a pseudo panoramic photographing picture frame size S2 is displayed by the edges 13c and 14c of the regulating parts 13b and 14b. Therefore, the pseudo panoramic photographing picture frame size S2 is displayed by a pair of the movable frames 13 and 14 regulating only the right and left edges of the pseudo panoramic photographing picture frame size S2, respectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera in which a viewfinder field frame can be switched according to a change in screen size.

[0002]

2. Description of the Related Art A camera capable of performing a shooting operation by switching between a pseudo panoramic shooting for obtaining a pseudo panoramic effect by trimming a part of a shooting screen and a standard shooting without trimming has been proposed and put into use. . In such a camera, it is necessary to switch the field-of-view range of the finder unit along with the switching between standard shooting and pseudo panoramic shooting. In a conventional camera, as shown in FIG. 4, a pair of mask members 2 are appropriately inserted above and below a fixed frame 1 corresponding to the screen size of standard photography to limit the field of view, or, as shown in FIG. ,
As shown in (b), the L-shaped visual field frames 3 are arranged so as to face each other, and when switching from the standard photography (FIG. 5 (a)) to the panoramic photography (FIG. 5 (b)), the visual field frames 3 are moved vertically. The field of view was limited by making them close to each other. Further, as shown in FIG. 6C, a field frame 4 having a hole 4a corresponding to the screen size of panoramic photography is prepared, and at the time of standard photography, the viewfinder lens 5, as shown in FIG. The visual field frame 4 is retracted from the optical path 6 and the visual field frame 4 is exposed to the optical path of the finder lenses 5 and 6 to limit the visual field range during panoramic photography as shown in FIG. 6A.

[0003]

However, in the above-mentioned conventional viewfinder, the field frame and the mask member forming the field frame extend over substantially the entire length of the long side of the screen size for panoramic photography. Therefore, there is a problem in that the field of view frame and the mask member are increased in size, and a large retracting space of the field of view frame is required during standard photography, and the size of the entire finder is inevitable.

An object of the present invention is to provide a camera in which the viewfinder field frame can be switched so that the entire viewfinder can be downsized.

[0005]

1 and 3, which show an embodiment, the present invention will be described with reference to a first screen size S1 and a second screen size S1 included in the first screen size S1.
It is applied to a camera capable of switching the screen size S2 of.
Further, the above-mentioned object is to configure the field-of-view frames 13 and 14 defining the second screen size S2 from at least two movable division frames 13 and 14, and to define the second divisions defined by the movable division frames 13 and 14. Each of the movable dividing frames 1 so that at least a pair of opposite sides of the screen size S2 of
This is achieved by defining the shapes of 3 and 14. Here, the movable split frames 13 and 14 may be pivotally supported so as to be rotatable in opposite directions.

[0006]

Since the shapes of the movable dividing frames 13 and 14 are determined so that at least a pair of opposing sides of the second screen size S2 are discontinuous, these pair of sides have at least two movable dividing frames 13, 14 are defined. Therefore,
It is possible to reduce the size of the movable division frames 13 and 14 as compared with the conventional field frame that extends over substantially the entire length of the screen size side. Incidentally, in the section of means and action for solving the above problems for explaining the configuration of the present invention, the drawings of the embodiments are used to make the present invention easy to understand, but the present invention is limited to the embodiments. Not something.

[0007]

FIG. 1 and FIG. 2 are views showing an embodiment of a camera capable of switching finder field frames according to the present invention.
FIG. 1 is a rear view of the finder with a part removed, and FIG. 2 is a side view of the finder. In these drawings, 10 is a finder body, 11 is a variable magnification optical system such as a lens, and 12
Is a fixed frame for standard photography, 13 and 14 are movable frames for pseudo panoramic photography, 15 is an inverting optical system such as a prism and a mirror, 16
Is an eyepiece optical system such as a lens.
Are fixed to or supported by the finder body 10.

The fixed frame 12 has a screen size S1 for standard shooting.
And a rectangular hole 12a corresponding to this screen size is formed in the center. Movable frame 13,
14 are respectively arranged on the left and right sides of the fixed frame 12, and are rotatably provided around pins 20 and 21 projecting from the finder body 10 above the fixed frame 12. The movable frame 14 is provided with a pin 14a protruding therefrom, and the movable frame 13 is formed with an elongated hole 13a into which the pin 14a is inserted. The action of the pin 14a and the elongated hole 13a allows one movable frame to move. With the rotation of 13, the movable frames 13 and 14 are interlocked in a direction in which they are separated from each other or approach each other. The pin 14a is urged upward in FIG. 1 by the spring 18, and the urging force causes the movable frames 13 and 14 to be placed at the positions shown in FIG. Below the movable frames 13 and 14, a rectangular screen size S2 at the time of pseudo panoramic photography is used.
Restricting portions 13b and 14b that define (see FIG. 3) are formed. The restriction unit 13b has a screen size S2.
The opposite U-shaped end edges 13c corresponding to the left ends of the pair of long sides facing each other are formed, and the restricting portion 14b includes
A U-shaped edge 14c corresponding to the right end of a pair of long sides of the screen size S2 facing each other is formed. Regulator 13
b and 14b, even when the movable frames 13 and 14 are closest to each other as shown in FIG.
The gap G is formed between b and 14b. Therefore, the edges 13c of the restriction portions 13b and 14b,
The screen size S2 is partially and discontinuously defined by 14c.

Reference numeral 19 denotes a lever that slides in association with a switching instruction to switch between standard shooting and pseudo panoramic shooting. When the switch from standard shooting to pseudo panoramic shooting is instructed, lever 1
9 slides to the right in the figure from the position shown in FIG. 1 to the position shown in FIG. An inclined surface 19a is formed at the tip (right end in the figure) of the lever 19, and the inclined surface 19a is formed on the pin 14 of the movable frame 14 while the lever 19 slides to the position shown in FIG.
Contact a.

In the finder having the above structure,
The light from the subject is imaged at a position of the fixed frame 12 with a predetermined magnification by the variable power optical system 11. The photographer uses the reversing optical system 15
Also, the image of the subject formed at the position of the fixed frame 12 is observed via the eyepiece optical system 16. Here, at the time of standard photographing, the lever 19 is positioned to the left as shown in FIG. 1, and the movable frames 13 and 14 are urged by the urging force of the spring 18 in a direction in which they are separated from each other, and the restriction portions 13b and 14b thereof are fixed. It does not block the field of view of the frame 12. Therefore, the fixed frame 12 displays the screen size S1 for standard photography. On the other hand, during the pseudo panoramic photography, the lever 19 is slid to the right as shown in FIG. 3, the pin 14a of the movable frame 14 is brought into contact with the inclined surface 19a at the tip of the lever 19, and the pin 14a is pushed downward in the figure. The movable frames 13 and 14 are springs 1.
They rotate in the directions in which they approach each other against the urging force of 8. As a result of this rotation, as shown in FIG. 3, the restricting portions 13b and 14b of the movable frames 13 and 14 are inserted in front of the fixed frame 12, and the field of view thereof is blocked by the restricting portions 13b and 14b and the edge 13 thereof is blocked.
Screen size S2 for pseudo panoramic photography with c and 14c
Is displayed.

Therefore, according to this embodiment, the screen size S2 for pseudo panorama shooting is displayed by the pair of movable frames 13 and 14 which define only the right end and the left end of the screen size S2 for pseudo panorama shooting. Because
The size of the member can be reduced as compared with the conventional field frame that defines the entire long side or short side of the screen size S2, and the evacuation space at the time of standard shooting can be reduced to reduce the size of the entire viewfinder. The size can be reduced. In addition, in the present embodiment, the movable frames 13 and 14 define the screen size S2 for pseudo panoramic shooting only discontinuously, and a gap G is formed between the movable frames 13 and 14 even during pseudo panoramic shooting, and the screen is displayed. Since the central portion of the size S2 is not defined by these movable frames 13 and 14, the positions of the movable frames 13 and 14 are left and right depending on the mounting tolerance of the movable frames 13 and 14 or the dimensional tolerance of the movable frames 13 and 14 themselves. Even if there is a deviation, there is an advantage that this deviation is not noticeable. In addition, the photographer can observe the outside of the screen size S2 for pseudo-panoramic photography from this gap G, and can certainly recognize that it is pseudo-panoramic photography, and is outside the screen size S2. There is also an advantage that it is easy to capture a subject. Furthermore, in this embodiment, since the movable frames 13 and 14 are rotated to be inserted and retracted, there is also an advantage that a smooth and reliable operation can be realized as compared with the conventional configuration in which the field frame is slid. is there.

In the correspondence between the embodiment described above and the claims, the movable frames 13 and 14 each constitute a movable divided frame. The details of the camera capable of switching the finder field frame of the present invention are not limited to the above-mentioned embodiment,
Various modifications are possible. As an example, the shape and the arranging method of the movable split frame are not limited to those of the above-described embodiment, and for example, a rod-shaped movable split frame may be inserted from the left and right or from the upper and lower sides, and the L-shape is smaller than the conventional one. The movable dividing frame may be inserted obliquely from right to left. In addition, the shape may be such that a pair of sides of the second screen size are discontinuous, and the movable divided frames may abut outside the frame of this screen size. Further, the second screen size is not limited to the one corresponding to the pseudo panoramic shooting, but may be a general trimming frame size, a half size shooting size, or the like.

[0013]

As described above in detail, according to the present invention, the shape of each movable dividing frame is determined so that at least a pair of opposite sides of the second screen size are discontinuous. The size of the member can be reduced compared to the one that defines the entire long side or short side of the screen size like the field frame of, and by extension, the evacuation space at the time of standard shooting can be reduced and the overall size of the viewfinder can be reduced. Can be achieved. Further, at least a pair of opposite sides of the second screen size are defined only discontinuously, and even when the screen size is switched to the second screen size, there is a part not defined by these movable dividing frames, so that, for example, it is movable. Even if the position of the division frame is displaced, this displacement is not noticeable. In addition, the photographer can observe the outside of the second screen size from this unspecified portion, and can reliably recognize that the screen size has been switched, and the second screen size can be confirmed. It is also easy to capture the subject outside.

[Brief description of drawings]

FIG. 1 is a diagram showing a finder visual field frame switchable camera according to an embodiment of the present invention, which is a rear view with a part of the finder removed.

FIG. 2 is a side view showing a finder according to an embodiment.

FIG. 3 is a rear view showing a state during pseudo panoramic photography.

FIG. 4 is a schematic front view showing an example of a conventional viewfinder field frame.

FIG. 5 is a schematic front view showing another example of a conventional finder field frame.

FIG. 6 is a schematic view showing still another example of a conventional viewfinder field frame, in which (a) and (b) are side views and (c) is a perspective view.

[Explanation of symbols]

 S1 Normal shooting screen size S2 Pseudo panoramic shooting screen size 13, 14 Movable frame 13b, 13c Restriction part 13c, 14c Edge

Claims (2)

[Claims] 1. A camera capable of switching between a first screen size and a second screen size included in the first screen size, wherein a field frame defining the second screen size is at least 2
It is characterized in that the movable split frames are provided, and the shape of each of the movable split frames is determined so that at least a pair of opposing sides of the second screen size defined by these movable split frames are discontinuous. Camera with switchable viewfinder frame. 2. The camera according to claim 1, wherein each of the movable division frames is pivotally supported so as to be rotatable in opposite directions.