JPH03226721A - Camera integrated with film - Google Patents

Abstract

PURPOSE:To simply constitute a finder part having the wide angle of visibility by integrally molding a finder lens at an optimum place on an outer cover for covering the front surface of a body main body. CONSTITUTION:The finder lens 33 is integrally molded at the optimum place on the outer cover K for covering the front surface of the body main body 1, and a see-through type finder can be converted to the finder having the wide angle of visibility by the finder lens 33 integrated with the outer cover. Thus, it is made possible to integrally constitute the finder part with the outer cover K formed of a light-weight and low-priced flat plastic sheet, so that this constitution can contribute to the accomplishment of variety and high functionality of the film camera integrated with film without damaging the simplicity and the compact performance of the camera integrated with film while reducing the number of parts by using finder constituting members in common, and also increasing the degree of freedom in designing by attaining the saving of the space of the finder part.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a disposable type film-integrated camera.

[Prior Art] Generally, this type of film-integrated camera is constructed by incorporating various photographing functions such as a lens, a shutter release button, and a winding mechanism into a housing in which film is loaded in advance. Since the camera has the characteristics of being small and lightweight and is extremely inexpensive, it has rapidly become popular as a simple disposable camera.

With the spread and expansion of these film-integrated cameras, the need for higher functionality has begun to emerge in recent years. That is, it has become desirable to have a film-integrated camera that has advanced functions such as strobe photography, zooming photography, and wide-angle photography. However, these advanced features are simple and
This is incompatible with the low cost characteristic of film-integrated cameras, and various development issues have emerged.

[Problem to be solved by the invention]

In the conventional film-integrated cameras mentioned above, the finder that determines the image frame for the object scene is mostly constructed of a see-through type. This is because film-integrated cameras are often used for photographing objects such as people and landscapes that do not require very strict framing settings, so the viewfinder section is designed to be as simple as possible to reduce costs.

However, since the see-through type finder is configured to directly view the real image of the subject, the aperture on the subject side must be made large, which takes up too much space in relation to the camera body, giving freedom in design. Constrain degree.

■For this reason, the field of view from the see-through finder tends to be smaller than the actual scene of the photographed subject, resulting in a discrepancy between the image of the side view and the actual photograph.

■The trends in ■ and ■ are particularly noticeable in film-integrated cameras equipped with wide-angle shooting lenses.

It had the following problems.

In view of the above points, this invention saves space while
It is an object of the present invention to provide a film-integrated camera having a viewfinder with a simple structure that allows viewing of an image frame corresponding to an actual photographic field of view.

[Means to solve the problem]

In order to achieve the above object, this invention integrally molds a finder lens at a suitable location on the exterior cover that covers the front of the body, and by using the finder lens integrated with the exterior cover, the see-through finder can be transformed into a finder with a wide viewing angle. It is made to be convertible.

〔Example〕

Hereinafter, the present invention will be described based on an embodiment shown in the accompanying drawings.

Figure 1 is an overall perspective view of the film-integrated camera of the present application, Figure 2
The figure is an exploded perspective view of the camera of the present invention, the third figure is an explanatory diagram showing the relationship between the transparent finder and the wide-angle finder lens, and the fourth figure is an explanatory diagram showing the relationship between the see-through finder and the wide-angle finder lens.
FIG. 5A is a sectional view of the finder lens, FIG. 5B is a front view thereof, and FIG. 5 is a sectional view of the camera of the present invention.

In the figure, 1 is the main body of the film-integrated camera of the present application, and the main body 1 is made of a plastic casing.
Spool chamber 2, cartridge chamber 3, and film 1 inside
01. The main body 1 includes a photographic lens unit 10
The mounting for attaching is provided with a frame 4. The mounting specifications of the frame 4 are the same regardless of the type of lens mounted on the photographic lens unit 11, which will be described later, and are common to both standard and wide-angle lenses. Further, a claw T2 for locking a front cover 30, which will be described later, is provided at a suitable location near the spool chamber 2 and the cartridge chamber 3, and a claw T2, which is located at a suitable location on the upper part of the main body 1, is used to lock a winding unit 40, which will be described later. , are each erected.

Reference numeral 5 denotes a battery chamber; 5a, 5a are contact storage grooves provided at both ends of the battery chamber 5; 6 is a window for viewing the lighting lamp 22 that indicates the completion of charging of the strobe circuit; 6a! , is a storage groove in which the lighting lamp 22 is stored.

7 is a finder opening, and the lower opening is a see-through hole 32, which will be described later.
A standard see-through type finder F can be constructed by communicating with the lens. Reference numeral 8 denotes a sprocket storage chamber, and the storage chamber 8 houses a sprocket that rotates by meshing with the perforations of the film 101, and is connected to a shutter charge mechanism and a film remaining amount display mechanism (both not shown), which will be described later. It has become.

The photographic lens unit 10 is constructed as a unit incorporating a photographic lens 1 and a shutter blade drive member 12. The photographic lens unit IO can be equipped with various lenses such as a standard lens and a wide-angle lens, and at least the specification of the attachment part is configured such that it can be integrated into the main body 1 regardless of the type of photographic lens 11. That is, regardless of whether the photographing lens 11 is a standard lens or a wide-angle lens, the body 1 can be attached to the frame 4 by means of the positioning pin I and the claw T. here,
The photographic lens 11 can incorporate a lens with an optimal focal length and angle of view depending on its intended use. for example,
It is possible to achieve standard or wide-angle shooting angles of view. Further, the photographing lens 11 has an optimum focal position of 0.5
It is set to a pan-focus system within the range of ~5m, and has a configuration that does not require focus adjustment. That is, in landscape photography, various commemorative photography, etc., which are the main uses of the camera of the present invention, it is possible to take photographs by simply setting the framing without having to bother with focus adjustment work.

The shutter blade driving member 12 is connected to the lens unit 1
0, a part of which is stamped on an arm member 43 (described later), and configured to open and close a shutter blade (not shown) for a predetermined period of time.

20 is a strobe unit, and the strobe unit 20, including its peripheral circuit, is arranged in a flat space formed by the difference in depth between the spool chamber 2 and the cartridge chamber 3.
Figure 5). The unit 20 includes a main capacitor 21, a lighting lamp 22, a battery contact piece 23, a strobe light emitting part 24, etc. on a substrate 25, and by fitting the battery contact piece 23 into the storage groove 5a of the battery chamber 5, It can be integrated with the main body 1. The irradiation area of the strobe light emitting unit 24 is set by appropriately changing the shape of the reflector and setting the irradiation angle range so that the irradiation area corresponds to the screen for wide-angle photography. That is, the irradiation area is configured to be a rectangle that exactly matches the image frame on the film surface, thereby preventing unevenness in the amount of light within the screen. 26 is positioning bin I
The positioning hole 27 is a hole through which the claw T2 is inserted.

Reference numeral 30 denotes a front cover, and the front cover 30 is made of plastic molded similarly to the main body 1, and is configured so that it can be integrated with the unit 1 by locking the front claw T2 with a locking portion 35. 31 is an opening for accommodating the lens section 11 of the photographic lens unit 10. The opening 31 is configured so that both a standard lens and a wide-angle lens can be stored in the lens unit 11. Reference numeral 32 denotes a see-through hole provided at a suitable position in the upper part of the cover 30, and the see-through hole 32 constitutes a see-through type finder F that communicates with the opening lower part of the main body 1 and extends from the photographer's side toward the field of view. When viewed from the open lower door (on the photographer's side), the image frame corresponding to standard lens photography can be set.

K is an exterior cover, and the exterior cover includes the front cover 3.
0, the areas corresponding to the finder F and strobe window 34 (to be described later) are made of a transparent sheet or a transparent sheet, and the other areas are predetermined so as to give a suitable appearance as a film-integrated camera. The design is printed. Note that the exterior cover may be configured to cover not only the front surface of the cover 30 but also the entire surface of the camera of the present invention, including the body 1 and the winding unit 40, which will be described later.

33 is a finder lens, and the finder lens 33 is provided in the front part of the see-through hole 32 of the finder F.
In the perspective state, the viewfinder that determines the field of view corresponding to the image frame for standard photography can be converted into a wide-angle finder that determines the field of view that corresponds to the image frame for wide-angle photography. That is, the finder lens 33 is a concave lens that converts the standard viewing angle θ1 of the see-through finder F into a wide-angle viewing angle θ1<>θ1 (FIG. 3).

Here, the finder lens 33 is constituted by a lens that is integrated with the outer wall cover. That is, a finder lens is formed in a transparent area of the exterior cover corresponding to the finder F. In this case, since the lens 33 and the exterior cover are integrally molded, there are advantages in that the number of parts can be reduced and the manufacturing process can be simplified.

34 is a strobe window, and the window 34 is a strobe light emitting unit 2.
It is provided in the area corresponding to 4. The window 34 may be a transparent opening, or a single transparent plate 34a may be molded from transparent plastic and fitted into the window 34 in order to protect the light emitting section 24. In this embodiment, the exterior cover is provided with a transparent plate 34a in which a region corresponding to the strobe light emitting section 24 is made transparent. X is a changeover switch for selecting a strobe mode.

40 is a winding unit, and the winding unit 7 40
is constructed as a unit incorporating a winding mechanism and a counting mechanism, and can be integrated into the main body 1 via a claw T3. 41 is a winding knob;
1 consists of a rotary plate that exposes a part of it at the rear (on the photographer's side) of the winding unit 40, and by driving and rotating the exposed part with a fingertip, the contents of the cartridge chamber 3 are moved through the drive bin 41a. It is configured to drive the cartridge rotating shaft 3a and wind up the film 101. 4
Reference numeral 2 denotes a counter, and the counter 42 is operated by the sprocket that meshes with and interlocks with the perforations of the film 101, and is capable of displaying the remaining amount of film on the top surface of the winding unit 40. The arm member 43 also includes a charging mechanism (
(not shown) every time the film 101 is wound up a predetermined length, the shutter blade drive member 12 is triggered by the pressing operation of the release button 44 and runs.
It is configured so that it can be stamped.

In the above embodiment, the main body 1 is attached to the frame 4 by positioning pins I.

By attaching the strobe unit 20, the front cover 30, and the winding unit 40 to the main body 1, the film can be integrated into the main body 1.
type camera is configured.

If the user looks through the open lower part of the finder F, the field of view corresponding to wide-angle photography can be seen through the finder lens 33. Here, the lens 33 is integrated with an exterior cover that covers the front cover 30 of the body 1. Next, when the shirt release button 44 is pressed, the arm member 43 is triggered and travels, striking the shutter blade drive member 12, opening and closing the shutter for a predetermined period of time, and exposing the film 101. At this time, the light emitting lamp 24 of the strobe light emitting unit 20
Strobe light is emitted from the window 34 and is directed toward the field of photography through the window 34. Further, since the photographic lens 11 is set to pan focus, no focusing operation is necessary.

Next, when the winding knob 41 is driven to wind up the film 101 in the cartridge chamber 3, a counter mechanism is operated via a sprocket interlocked with the film 101, and the remaining amount of film is displayed on the counter 42.

〔Effect of the invention〕

As mentioned above, this invention is characterized in that the finder lens is integrally molded at a suitable location on the exterior cover that covers the front surface of the body.The finder lens integrated with the exterior cover constitutes a finder with a wide viewing angle. can. Moreover, since it can be constructed integrally with the exterior cover made of a lightweight and inexpensive flat plastic sheet, the simplicity and compactness of the film-integrated camera will not be compromised.

As a result, the number of parts has been reduced by standardizing the viewfinder components, and the degree of design freedom has been increased by saving space in the viewfinder section, while contributing to the diversification and higher functionality of film-integrated cameras. It is something that plays.

[Brief explanation of drawings]

Figure 1 is an overall perspective view of the film-integrated camera of the present application, Figure 2
The figure is an exploded perspective view of the camera of the present invention, Figure 3 is an explanatory diagram showing the relationship between the see-through type finder and the wide-angle finder lens, and Figure 4
FIG. 5A is a sectional view of the finder lens, FIG. 5B is a front view thereof, and FIG. 5 is a sectional view of the camera of the present invention. --Body main body spool chamber Patrone chamber...Installation is frame/battery chamber contact piece storage groove 6-Window 6a-Storage groove 7-Opening 8-Sprocket storage chamber 10--Lens unit 11-Photographing lens 12-- - Shutter drive member 20 - Strobe unit 21 - Main capacitor 22 - Lighting lamp 23 - Battery contact piece 24 - Strobe light emitting lamp 25 - Substrate 26 - Positioning hole 27 - Passing hole 30 - Front Cover 31 - Sekiguchi 32 - Transparent hole 33 - Finder lens 34 - Strobe window 34a - Transparent plate 35 - Locking hole 40 - Winding unit 41 - Winding knob 41 a - Winding shaft 42 - Counter 43 - Arm member 44 - Shutter release button 101 - Film F - Finder - Exterior cover 1, , T, , I3 - Positioning bin T, , T2, T, - Claw X - 11 Strobe changeover switch

Claims (1)

[Claims] A film-integrated camera is characterized by having a finder lens integrally molded in a suitable location on the exterior cover that covers the front of the body.