JPH03155531A - Panoramic camera - Google Patents

Abstract

PURPOSE:To allow a power supply member to have large capacity without making an entire camera large in size by providing a non-circular lens in a photographing optical system and entering a part of the power supply member into a virtual optical path which is out of a photographing optical path and is equivalent to a reference picture plane so that the power supply member may be arranged closely to the non-circular lens. CONSTITUTION:The non-circular lenses 2a, 2b, 2d and 2e whose size in a direction orthogonally crossed with the longitudinal direction of a panoramic shot picture plane is formed to be shorter than the size in a direction going along the longitudinal direction of the panoramic shot picture plane are provided in the photographing optical system 2. Then, the power supply member 7 such as a battery is arranged closely to the lenses 2a, 2b, 2d and 2e in a state where a part of the power member 7 may enter into the virtual optical path which is out of the photographing optical path of the panoramic shot picture plane and is equivalent to the reference picture plane. Thus, a panoramic camera in which the power supply member is allowed to have the large capacity without making the entire camera large in size is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application J] The present invention relates to a panoramic camera. For more details,
It is smaller than the standard screen size of a film such as the so-called 35 mm format (both vertical and horizontal dimensions are smaller and has a flat shape, for example, the width in the direction perpendicular to the longitudinal direction of the film is about half the standard screen size). The present invention relates to a panoramic camera equipped with a photographing optical system for exposing a panoramic photographic screen and a housing for power supply members such as batteries and strobe capacitors.

[Prior Art] Conventionally, in a photographing optical system for a panoramic camera of this type, even a lens for photographing on a panoramic ↑ shadow screen as described above has the same effect as a lens for photographing on a standard screen.
A circular lens that is approximately circular when viewed along the optical axis and can cover the entire standard screen was used.

[Problems to be Solved by the Invention] Incidentally, as cameras have become more electronic in recent years, it has been desired to increase the capacity of power supply members such as batteries. At the same time, in order to make the camera convenient to carry and easy to handle, it is also desired that the entire camera be made compact and below a certain size.

However, in the conventional panoramic camera as described above, it is necessary to ensure a large space occupied by the circular lens itself, so it is necessary to make the entire camera compact within a certain size while at the same time increasing the capacity of the power supply member. was difficult to achieve.

An object of the present invention is to provide a panoramic camera that can increase the capacity of a power supply member without increasing the size of the entire camera.

Means for Solving the Problem] In order to achieve the above object, the characteristic configuration of the panoramic camera according to the present invention is to expose a panoramic photographing screen that is smaller in at least one of the vertical and horizontal dimensions and has a flat shape than the standard screen of the film. A photographing optical system is provided with a non-circular lens whose dimension in the direction perpendicular to the longitudinal direction of the panoramic photographing screen is shorter than the dimension in the direction along the longitudinal direction of the panoramic photographing screen, and the photographing optical system is provided with a non-circular lens formed to have a dimension in a direction perpendicular to the longitudinal direction of the panoramic photographing screen smaller than a dimension in a direction along the longitudinal direction of the panoramic photographing screen. The non-circular lens is arranged in close proximity to the non-circular lens with at least a part of the housing for a power supply member, such as a battery, placed outside the photographing optical path for providing the image and within the virtual optical path corresponding to the standard screen. There is a particular thing.

According to the characteristic configuration of the present invention, for example, as shown in FIG. The width (w) along the longitudinal direction (X) of the panoramic shooting screen (PF) is set to the width (-) along the longitudinal direction (X) of the standard screen (SF).
'), the panoramic photographic screen (PF) becomes smaller than the standard screen (SF) in the direction (Y) perpendicular to the longitudinal direction. therefore,
Assuming that the maximum dimension along the longitudinal direction (X) of the photographing optical system (2) + each lens to be provided is approximately the maximum diameter of a conventional circular lens necessary to expose the standard screen (SF). Even if the degree is the same, as shown in FIGS. 1 to 4, the panoramic shooting screen (
a non-circular lens (2a) whose dimension in the direction (Y) perpendicular to the longitudinal direction (X) of the panoramic photographic screen (PF) is shorter than the dimension in the direction along the longitudinal direction (X) of the panoramic photographic screen (PF);
, (2b), (2d), and (2e) are provided in the photographing optical system (2), so when comparing the panoramic photographing screen (PF) with the standard screen (SF), no exposure is required. The unnecessary optical path portion (M) corresponding to the portion can be omitted.

As shown in FIG. 1, the unnecessary optical path portion (M) is outside the photographing optical path (L) for providing photographing light to the panoramic photographic screen and within the virtual optical path (IL) corresponding to the standard screen. , the non-circular lens (2
a), (2, b), (2d) and (2e), so even if the entire camera is configured to have the same dimensions as the conventional one, the storage section up to the unnecessary optical path portion (M) (
8) can be enlarged, and the capacity of the power supply member (7) housed in the housing section (8) can be increased.

Further, as shown in the second aspect of the present invention, when a battery (7) is used as the power supply member, a large capacity battery (7) is used as the power supply member.
7) can be stored in the panoramic camera, reducing the frequency of replacing the battery (7) and reducing its maintenance, as well as reducing internal resistance due to the increased capacity of the battery (7), for example. The charging time of the strobe (5) can be shortened, and the camera function can be accelerated.

〔Example〕

Next, an example will be shown with reference to FIGS. 1 to 7.

As shown in Figures 1 and 2, panoramic camera (1)
The photographing optical system (2) consists of five lenses arranged as single focal length lenses, which can be integrally moved in the front and back direction along their front axis (0) for focusing. It is provided inside the camera body (3). A finder (4) separate from the photographic optical system (2) is provided at the top of the camera body (3), and a strobe (5) is protruded above the viewfinder. ) is provided with a capacitor (6).

On the other hand, a storage section (8) is provided at the bottom of the camera body (3) to store a battery (7) serving as a power supply member for supplying power to the capacitor (6) and the like. or,
A film rail mechanism (9) is provided at the rear of the camera body (3) to guide the film (F) in a flat state in its longitudinal direction.

As shown in FIG. , "width") (W) is 36 mm, and the width in the vertical direction (Y) vertically orthogonal to the longitudinal direction (X) within the film surface (Fl) (hereinafter referred to as
Let it be "vertical width". ] (h) is 13 mm. In other words, the so-called 35 mm format is an example of a standard screen (SF), that is, the width (-゛) is 36 mm and the vertical width (h
') is 24 mm, the panoramic photographing screen (PF) has a smaller vertical width (h) and a flat shape that is longer in the longitudinal direction (X).

As shown in FIGS. 3 and 4, the photographing optical system (2)
Of the five lenses that make up the lens, the central lens has an optical axis (0
) A circular lens (2C) that is approximately circular in direction is used,
The other four lenses are non-circular lenses (2a) and (2b) in which the dimension in the vertical direction (Y) is shorter than the dimension in the longitudinal direction (X) when viewed in the direction of the optical axis (0). )
, (2d) and (2e).

That is, the panoramic shooting screen (PF) shown in FIG.
The photographing optical path (L) by the photographing optical system (2) for providing photographing light to the camera has a flat exposure range (Is) shown in FIG. ), the non-circular lens (2
a), (2b).

(2d) and (2e) are formed. The vertical width of this flat exposure range (Is) is determined by the panoramic shooting screen (PF).
), while its width is approximately the same as the vertical width (h) of
It almost matches the diagonal length (d) of the panoramic photographing screen (PF). In addition, each of the non-circular lenses (2a),
The aspect ratios of (2b), (2d), and (2e) are not the same. Further, in the figure, (S) indicates a shutter.

By configuring the photographing optical system (2) as described above, the space occupied by these lenses can be replaced by the conventional circular lenses that expose the standard screen (SF) shown by the chain lines in FIGS. 3 and 4. significantly smaller than the space it occupies (
2. That is, when using a circular lens, the virtual optical path (IL) shown in FIG. 4 has a circular exposure range whose diameter is the standard diagonal length (d") of the standard screen (SF) shown in FIG. (Is”) was formed,
According to the configuration of the present invention, the flat exposure range (Is
) is much smaller than that of the conventional circular exposure range (IS'), and the flat exposure range (IS') is much smaller than the conventional circular exposure range (IS').
The width of the conventional circular exposure range (IS) is also different from that of the conventional circular exposure range (IS).
This is because it can be smaller than the width of ').

As shown in FIGS. 1 and 2, the battery (7) is a cylindrical lithium battery, and the storage section (8) that stores the battery (7) maintains a good balance between the left and right sides of the camera. At the same time, in order to lower the center of gravity of the camera and increase the stability of the camera, its longitudinal direction is aligned with the film (F).
It is placed at the lower center of the camera body (3), facing in the longitudinal direction (X). This storage section (8) contains a battery (
7) A storage space (8a) for storing the
L) from the storage space (8a). On the other hand, for the above-mentioned reason, the photographing optical path (L) is narrower in the vertical direction (Y) than the virtual optical path (IL).

Therefore, outside the photographing optical path (L) and the virtual optical path (I
With the upper part of the storage section (8), that is, the partition plate (8b) and a part of the storage space (8a) inserted into the unnecessary optical path portion (M) in L), Department (
8) to the non-circular lenses (2a), (2b) (2d
) and (2e), the entire camera has the same dimensions as the conventional one, while the storage section (8)
The aim is to increase the capacity of the battery (7) housed in the battery. In addition, at the bottom of the camera body, there is a battery (7) for the storage section (8).
A lid is provided for taking in and out.

[Another example] Next, other embodiments of the present invention will be listed.

(b) In the above embodiment, the battery (7) was used as an example of the power supply member, but various power supply members such as a capacitor for the strobe (5) or a rechargeable storage battery may be used. Can be used.

(b) In the above embodiment, since a battery that needs to be replaced was used as the power supply member (7), the partition +1
(8b) and the storage space (8a) form the storage section (8).
However, if the power supply member, such as a capacitor, hardly needs to be replaced, the storage section (8) may be constructed by omitting the partition plate (8b).

(C) The width of the panoramic shooting screen (PF) of the present invention does not necessarily mean the width of the standard screen (SF).
For example, as shown in FIG. 6, the width (W) of the panoramic camera shooting screen (PF) is smaller than the width (W) of the standard screen (SF). Even if the panorama shooting screen (PF) is large, its shape may be made flat by making the vertical width (h) of the panoramic shooting screen (PF) smaller than the vertical width (h') of the standard screen (SF).

(d) In the above embodiment, the longitudinal direction of the panoramic shooting screen (PF) is the lateral direction of the film (F),
That is, although the longitudinal direction of the film (F) is made to coincide with the longitudinal direction of the film (F), the longitudinal direction of the panoramic photographing screen (PF) is aligned with the longitudinal direction of the film (F), that is, in the direction orthogonal to the longitudinal direction of the film (F). may be matched.

(e) The panoramic camera of the present invention may include a wide-angle lens in the photographing optical system (2).

(f) In the above embodiment, the non-circular lens (2
a), (2b), (2d), (2e),
By forming the shape in the optical axis direction, which looks like a circle with two cutouts at the top and bottom, the direction (Y) perpendicular to the longitudinal direction (X) of the panoramic photographing screen (PP) when viewed from the optical axis (0) direction.
The dimensions of the panorama ↑ in the longitudinal direction of the darkest screen (PF) (
The non-circular lenses (2a), (2b), (2d), (2e) are made shorter than the dimension in the direction along
), and a portion of the storage portion (8) may be inserted into the cutout portion.

(g) The non-circular lenses (2a), (2b),
In order to form (2d) and (2e) into the above-mentioned non-circular shape, a part of the circular lens as viewed in the optical axis direction may be cut off, or it may be formed into the above-mentioned non-circular shape from the beginning. You may.

[Effects of the Invention] As described above, according to the present invention, it has been possible to provide a panoramic camera that can increase the capacity of the power supply member without increasing the size of the entire camera. especially,
When the power supply member is a battery, it has become possible to reduce the maintenance of the panoramic camera and to speed up the transfer of camera functions without sacrificing ease of handling.

[Brief explanation of the drawing]

1 to 5 show an embodiment of the panoramic camera according to the present invention, FIG. 1 is a schematic sectional view of the camera, and FIG.
3 is a view of the non-circular lens as seen in the optical axis direction, FIG. 4 is a schematic diagram of the photographing optical system, and FIG. 5 is a front view of the panoramic photographing screen. FIG. 6 is a diagram corresponding to FIG. 5 showing another embodiment of the panoramic camera according to the present invention. FIG. 7 is a comparison diagram showing the standard screen. (2)...Photography optical system, (2a), (2b
), (2d), (2e) -... Non-circular lens, (7)... Power supply member, (8)...
・・Storage part, (SF) ・・Standard screen, (PF)
...Panorama shooting screen, (L) ...Photography optical path, (IL) ...Virtual light path, (F) ...
... Film, (X) ... Longitudinal direction.

Claims (1)

[Scope of Claims] 1. A panoramic camera equipped with a storage section for a power supply member and a photographing optical system that exposes a flat panoramic photographic screen that is smaller in at least one of the vertical and horizontal dimensions than a standard film screen. The camera includes, in the photographing optical system, a non-circular lens whose dimension in a direction perpendicular to the longitudinal direction of the panoramic photographing screen is shorter than a dimension in a direction along the longitudinal direction of the panoramic photographing screen; The storage section is disposed close to the non-circular lens with at least a portion of the housing section outside the photographing optical path for providing photographing light to the photographing screen and within a virtual optical path corresponding to the standard screen. panoramic camera. 2. The panoramic camera according to claim 1, wherein the power supply member is a battery.