JPH03226722A - Camera integrated with film - Google Patents

Abstract

PURPOSE:To obtain camera the integrated with film only used for wide angle photographing by disposing a wide angle lens on a body main body, and also disposing a finder lens for deciding a visual field which corresponds to the photographing image frame of the wide angle lens on a finder. CONSTITUTION:The wide angle lens 11 is disposed on the body main body 1, and also the finder lens 33 for deciding the visual field which corresponds to the photographing image frame of the wide angle lens 11 is disposed on the finder, and then, the camera integrated with film only used for the wide angle photographing can be constituted while using a standard body and a finder F in common. That means, the photographing lens 11, even in the case that it is a standard lens or the wide angle lens, can be integrally formed with the attachment frame 4 of the body main body 1 with a pawl T1 through a positioning pin I1. In this case, as to the photographing lens 11, the lens having an optimum focal distance and the viewing angle can be incorporated in accordance with its using purpose. Thus, the camera integrated with film only used for the wide angle photographing can be obtained, scarcely causing the increase of the number of parts and the complication of producing process.

Description

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

[Conventional technology]

This type of film-integrated camera is constructed by incorporating various photographing functions such as a lens, a shirt release button, and a winding mechanism into a housing in which film is loaded in advance. This film-integrated camera has the characteristics of being small and lightweight, and is extremely inexpensive, so it is rapidly becoming 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
The characteristics of film-integrated cameras, which aim to be low-priced, are unique to Japan, and serious development issues have emerged.

[Problem to be solved by the invention]

In order to balance the high functionality of conventional film-integrated cameras as described above with simplicity and low cost, it is effective to configure them as specialized machines with specific high-end functions but with limited uses. It is.

That is, for example, if a wide-angle photographing lens is mounted on the main body, and the finder is also provided with a wide-angle finder having a wide image frame, a film-integrated camera dedicated to wide-angle photography can be constructed.

However, in this case, the specifications of the body and finder need to be changed in accordance with the difference in image frame between the standard lens and the wide-angle lens. Further, as the use of specialized equipment for wide-angle photography is promoted, there is a risk that costs will increase due to an increase in the number of parts and the complexity of the production process.

In view of the above points, it is an object of the present invention to provide a film-integrated camera exclusively for wide-angle photography without increasing the number of parts or complicating the production process.

[Means to solve the problem]

In order to achieve the above object, the present invention provides a film-integrated camera comprising a body main body into which a standard lens can be mounted, and a see-through type finder that determines a field of view corresponding to the photographing frame of the standard lens. The main body is provided with a wide-angle lens, and the finder is provided with a finder lens that determines a field of view corresponding to the photographic image frame of the wide-angle lens,
This makes it possible to configure a film-integrated camera for wide-angle photography while using the same standard body and finder.

〔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, 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.

In the figure, 1 is the main body of the film-integrated camera according to the present invention, 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. In addition, a claw Tz for locking a front cover 30, which will be described later, is provided at a suitable position near the spool chamber 2 and the cartridge chamber 3, and a claw Tz, which is used to lock a winding unit 40, which will be described later, is provided at a suitable position on the upper part of the main body 1. , are each erected.

Reference numeral 5 designates a battery compartment; 5a and 5a designate contact storage grooves provided at both ends of the battery compartment 5; 6 designates a window for viewing a lighting lamp 22 that indicates the completion of charging of the strobe circuit; 6a designates a lighting lamp 22; This is a storage groove for storing.

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 linked to a shank-charging mechanism and a film remaining amount display mechanism (none of which are shown), which will be described later. It has become.

The photographic lens unit 10 is configured as a unit that includes a photographic lens 11 and a shutter blade drive member 12. The photographic lens unit 10 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 so that it can be integrated into the main body 1 regardless of the type of photographic lens 11. That is, whether the photographic lens 11 is a standard lens or a wide-angle lens, the body 1 can be attached to the frame 4 integrally with the claw T1 via the positioning pin I. 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
A part thereof protrudes from the upper part of 0 and is stamped on an arm member 43, which will be described later, so that a shutter blade (not shown) can be opened and closed for a predetermined period of time.

20 is a strobe unit, 8 yen strobe unit 20
, including its peripheral circuits, is arranged in a flat space formed by the difference in depth between the spool chamber 2 and the cartridge chamber 3 (FIG. 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 a positioning hole into which the positioning pin I2 is inserted, and 27 is a passage hole for the claw T2.

Reference numeral 30 denotes a front cover, and the front cover 30 is formed by plus-thick molding like the main body 1, and is configured so that it can be integrated with the main body 1 by locking the claws T in the locking portions 35. 31 is the lens section 1 of the photographing lens unit 10;
This is an opening for storing 1. 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 on the upper part of the cover 30;
2 constitutes a see-through type finder F that communicates with the lower part of the main body 1 and extends from the photographer's side toward the subject, and when viewed from the open lower part (the photographer's side), corresponds to standard lens photography. It is now possible to set the image frame.

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) (FIG. 3). Here, the finder lens 33 is preferably a Newtonian type with a single concave lens as in the embodiment of the present application because it is the simplest, but it can also be configured with an inverted Galilean type with a two-lens configuration consisting of a concave and a convex objective/eyepiece lens. It's okay. Furthermore, it may be configured with one Fresnel lens.

The finder lens 33 is constructed by forming a transparent area corresponding to the finder F on the exterior cover. In this case, since the finder 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.

Reference numeral 40 denotes a winding unit, and the winding unit 40 is configured as a uni-nod that incorporates 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 by attaching the photographing lens unit 10 to the frame 4 via the positioning pin 11 and the claw T3, and furthermore, the flash unit 20, the front cover 30, and the winding unit 40 are each integrated into the main body 1. By doing so, the film integrated camera of the present invention is constructed.

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. Next, when you press the shirt release button 44,
The arm member 43 is triggered and runs, stamps the shutter blade drive member 12, opens and closes the shutter for a predetermined period of time, and exposes the film 101. At this time, strobe light is emitted from the light emitting lamp 24 of the strobe light emitting unit 20, and the window 3
4 and irradiates toward the subject. 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 described above, the film-integrated camera of the present invention includes a main body into which a standard lens can be mounted, and a see-through finder that determines a field of view corresponding to the photographic frame of the standard lens. The main body is equipped with a wide-angle lens, and the finder is equipped with a finder lens that determines the field of view corresponding to the shooting frame of the wide-angle lens, so it is possible to use the same body and finder as for standard shooting. A wide-angle film-type camera can be constructed using the following methods.

As a result, it is possible to provide a film-integrated camera capable of wide-angle photography while minimizing the increase in the number of parts and the complexity of the production process, thereby contributing to the increased functionality and diversification of film-integrated cameras. This has an excellent effect.

[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. 1-Body body 2-Spool chamber 3-Patrone chamber 4-Installation frame 5-Battery chamber 5a-Touch piece storage groove 6-・Window 6a-Storage groove 7-Opening 8--Sprocket storage chamber 10--Lens Unit 11 - Photographic lens 12 - Shutter drive member 20 - Strobe unit 21 - Main capacitor 22 - Lighting lamp 23 - Battery contact piece 24 - Strobe light emitting lamp 25 - Board 26 - Positioning hole 27 - Passing hole 30 - Front cover 31 - opening 32 - see-through hole 33 - finder lens 34 - strobe window 34a - transparent plate 35 - locking hole 40 - winding unit 41 - winding knob 41a - winding shaft 42 - counter 43 - arm member 44 - shutter release button 101 - Film F To the finder - Exterior cover 11 I2, I3 - Positioning bins T3, Tz, T3 - Claws X - Strobe changeover switch Figure Figure

Claims (1)

[Claims] In a film-integrated camera equipped with a body body into which a standard lens can be mounted, and a perspective viewfinder that determines a field of view corresponding to the photographic frame of the standard lens, the body body is provided with a wide-angle lens, and the finder is equipped with a wide-angle lens. A film-integrated camera comprising a finder lens for determining a field of view corresponding to the photographing frame of the wide-angle lens.