JPH05165082A - Camera - Google Patents

Abstract

PURPOSE:To prevent misoperation in framing an image motive and facilitate viewing a finder screen by contracting the picture field by shielding the end zones of the finder screen, or by providing a finder for panorama size separately from a finder for full size photographing. CONSTITUTION:At the time of full size photographing, the end zones of finder 1 are masked with masking wanes 2. while they are set off at the time of panorama photographing to provide a panorama finder having a large picture field. The user is easy to view the finder screen and easy to understand that it is under panorama photographing from the widened picture field. Provision of finder dedicated solely to panorama hinders the screen from reflecting unnecessary portion of the vision.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera capable of selecting either full-size photography or panoramic-size photography.

[0002]

2. Description of the Related Art Conventionally, there are commercially available cameras capable of selecting full-size photography and panoramic-size photography. As a viewfinder of this known camera, for example, as shown in FIG. It is known that the line L is included in the viewfinder screen, and that the blades H mechanically come out in the viewfinder to become a panoramic size viewfinder as shown in FIG. 5 (B). There is.

[0003]

However, the above-mentioned conventional example has the following drawbacks when taking a panoramic size photograph.

(A) Even a part that is not shown in the picture can be seen in the viewfinder, so that a picture different from the one I thought of may be made.

(B) Even when taking a full size picture, the viewfinder is difficult to see because the panoramic lines are visible.

(C) Since the viewfinder is masked by mechanically moving the blades, it becomes mechanically complicated, and
Fragile.

(D) It is difficult to see because the viewfinder becomes small during panorama.

Therefore, it is an object of the present invention to provide a camera which solves the above-mentioned drawbacks of the conventional example.

[0009]

The camera according to the present invention solves the above-mentioned drawbacks by adopting the following structure.

(I) A finder for the camera is provided with a mask for full-size photography, and the mask is removed during panoramic photography to increase the lateral length of the finder so that it becomes a full-size finder.

(Ii) A panorama viewfinder is provided separately from the full-size viewfinder so that only the range visible on the film can be seen during panorama shooting, and panorama lines and the like enter the viewfinder during full-size shooting. I tried to get rid of the glitches of.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a viewfinder of a camera according to a first embodiment of the present invention. Reference numeral 1 is a finder of the camera of this embodiment, and 2 is a mask blade for masking the finder 1 at the full size.

Referring to FIG. 1, the mask blades 2 cover the both ends of the finder 1 at the time of full-size photography, and the mask blades 2 at the time of panoramic photography.
It becomes a large screen panoramic viewfinder.

The viewfinder screen of the portion shielded by the blade 2 may be made of liquid crystal or the like, and the screen of that portion may be switched from bright to dark by applying an electric field to the liquid crystal.

FIG. 2 shows a camera according to another embodiment of the present invention. In the figure, 11 is a camera, 12 is a full-size viewfinder, 13 is a panorama viewfinder, 14 is a full-size viewfinder lens, and 15 is a panorama-only viewfinder lens. When using the camera of this embodiment, the full-size viewfinder lens 14 is used during full-size shooting.
View the light from the full-size viewfinder 12. During panoramic photography, the light from the viewfinder lens 15 for panorama is viewed through the viewfinder 13 for panorama.

FIG. 3 shows another embodiment of the present invention. In the figure, 16 is a half mirror for sending light to the upper part, and 17 is a finder lens used for both panoramic size and full size. Note that FIG.
The part indicated by the same reference numeral as is the same part as the camera of FIG. In the camera 11 of this embodiment, the light entering from the finder lens 17 is used by the half mirror 1 during full-size shooting.
It passes through 6 and appears in the full-size viewfinder 12.
Further, at the time of panoramic photography, the cost can be reduced by allowing the light entering from the finder lens 17 to be reflected by the half mirror 16 and reflected on the panoramic viewfinder 13. In panoramic photography, the camera is often fixed or placed on a tripod, etc., so it is easier to see by providing a viewfinder on the top.

FIG. 4 shows another embodiment of the present invention. Reference numeral 18 is a total reflection mirror, and 19 is a switching switch for switching between a full size viewfinder and a panorama viewfinder.

During full-size shooting, by operating the changeover switch 19 for full-size, the total reflection mirror 18 is lifted up as shown in FIG. Further, at the time of panoramic photography, by operating the changeover switch 19 for panorama, the total reflection mirror 18 is lowered as shown in FIG.
By using the panorama viewfinder 13,
The viewfinder is brighter and the subject is easier to see than when using a half mirror.

The above-mentioned switching may be automatically performed by turning on the panorama dedicated switch.

[0021]

As described above, the camera of the present invention has the following effects.

(A) A mask is placed on both ends of the finder in full size, the mask is removed during panoramic shooting, and the finder becomes larger than usual, which makes it easier for the user to see, and the finder screen expands horizontally during panorama. It is easy to understand that it is a panoramic shooting.

(B) By providing a panorama viewfinder, even parts that are not visible in the picture will not be seen in the viewfinder during panorama shooting, and panorama lines will appear in the viewfinder during full-size shooting, causing discomfort. I don't feel it. Moreover, since there is no mechanically complicated movement, there are few failures.

[Brief description of drawings]

FIG. 1 is a diagram showing a state of a finder screen of a camera of the present invention.

FIG. 2 is a rear perspective view (A) and a front view (B) showing an embodiment of a camera of the present invention.

FIG. 3 is a rear perspective view (A) of a camera according to another embodiment of the present invention and a schematic view (B) of an optical system seen from a side.

FIG. 4 is a diagram showing a state (A) during full size shooting and a state (B) during panorama size shooting of a camera according to yet another embodiment of the present invention.

FIG. 5 is a view showing two examples of a viewfinder of a conventional camera.

[Explanation of symbols]

1 ... Finder 2 ... Blade 11 ... Camera 12 ... Full size dedicated finder 13 ... Panorama dedicated finder 14 ... Full size dedicated finder lens 15 ... Panorama dedicated finder lens 16 ... Half mirror 17 ... Finder lens 18 ... Total reflection mirror 19 ... Switching switch

Claims (2)

[Claims] 1. A camera capable of selecting either full-size photo shooting or panorama-size photo shooting,
A camera having a finder end light-shielding member that shields both ends of the finder screen when taking a full-size photograph. 2. A camera capable of selecting either full-size photo shooting or panoramic-size photo shooting,
A camera provided with a viewfinder for full-size photography and a viewfinder for panoramic-size photography.