JPH04328537A - Camera - Google Patents

Abstract

PURPOSE:To inexpensively provide the structure of a camera which can detect a print method intended by a photographer at a photographing time. CONSTITUTION:A crank member 30 arranged with light tightness is provided in the inside of a film unit with a lens so as to be freely moved. The crank member 30 is provided with an operation member 35 which is operated according to the print method intended by the photographer, visual field range frames for panoramic photographing and telephotographing 36 and 37 which switch the visual field range of a finder 24 according to the operation of the operation member 35 and code signal plates for panoramic photographing and telephotographing 38 and 39 at the lower part of the frames 36 and 37. By the code signal plates 38 and 39, a code signal which discriminates the print method based on the light of an object transmitted through a photographing lens 20 is exposed on a film 15 according to the operation of the operation member 35.

Description

[Detailed description of the invention]

0001

[Field of Industrial Application] The present invention relates to the structure of a camera that takes a picture corresponding to a print area intended by a photographer out of print areas corresponding to a plurality of predetermined masks used in a printing device. be.

0002

[Prior Art] In addition to standard printing, which prints the entire frame of negative film, there are also special types of printing, such as pseudo-panoramic printing and pseudo-telephoto printing, which print a narrower area than standard photography at a higher magnification than standard printing. There is a way. The former method of obtaining a pseudo-panoramic print is shown in US Pat. No. 4,357,102. In this prior art, a mask that blocks the upper and lower parts of the viewfinder field of view is fixed to the camera, and the scene that can be observed by looking through the viewfinder is photographed in full size. When developing and printing this film, masking the top and bottom of the negative in the same way as a camera's viewfinder creates a horizontally long screen. However, the image recorded on the negative remains in full size, so when printing at a film processing laboratory, there are two options: to print in full size, or in the landscape format intended by the photographer. , it was not possible to know the print area intended by the photographer.

Therefore, in order to know the print area intended by the photographer, it is necessary for the photographer to input a selection signal for each photograph, and also to input a selection signal for each frame of the photographic film in accordance with this selection signal. Records will need to be kept accordingly. Such a camera is described in U.S. Pat. No. 497
No. 3997. With this camera, when the photographer operates a lever in accordance with the intended print area for each photograph, an exposure mark corresponding to this is recorded by guiding outside light through an optical fiber to areas other than the exposed area of the film. This exposure mark is automatically read by the printing device and printed in the print area intended by the photographer, which is very pleasing to the user.

0004

However, since the above-mentioned camera uses an expensive optical fiber, the cost of the camera increases, and the internal structure of the camera becomes complicated due to the incorporation of the optical fiber.

The present invention has been developed in view of the above-mentioned drawbacks, and is designed to transmit a code signal to each frame of a photographic film according to the print area intended by the photographer among a plurality of predetermined print areas. The purpose is to provide a recordable camera structure at low cost.

[0006]

[Means for Solving the Problems] In order to achieve the above object, the present invention provides an operation member for selecting a print area intended by a photographer from among a plurality of print areas;
a recording means that is linked to the operating member and records a code signal identifying the print area for each frame of the photographic film using the subject light incident from the photographic optical system; and a recording means that is linked to the operating member; and a viewing range changing means for switching the viewing range of the finder to a range corresponding to the print area.

According to the second aspect of the present invention, there is provided an operating member that is slidable in a film transport direction for selecting a print area intended by a photographer from among a plurality of print areas, and an operating member that is interlocked with the operation of the operating member. A viewing range changing means is provided for switching the viewing range of the finder to a range corresponding to the print area, and a viewing range changing means is provided on a rotatable interlocking rod arranged in the film transport direction, and is provided on a rotatable interlocking rod arranged in the film transport direction, and changing the viewing frame to the exposure frame according to rotation of the interlocking rod. a light-shielding member that blocks part of the incident subject light and records a code signal for identifying a print area for each frame of the photographic film; and a cam that regulates the amount of rotation of the interlocking portion according to the operation of the operating member. It is equipped with

[0008]

Embodiment A camera according to a first embodiment of the present invention is shown in FIGS. 2 and 3. This camera is based on the patent application No. 62-20287.
Lens-equipped film unit 10 disclosed in No. 6
an operating member for selecting the print area intended by the photographer, and a recording section for recording a code signal for identifying the print area for each frame of the film using the subject light incident from the photographic lens. This device incorporates a viewing range changing unit that changes the viewing range of the finder to a range that corresponds to the print area intended by the photographer.

The unit main body 11 of the lens-fitted film unit 10 is composed of a main body base 12, a back cover 13, etc., and a 35 mm wide film 15 is placed inside the unit main body 11 in advance to shield it from light. A cartridge 16 for storage and a film 15a pulled out from the cartridge 16 in the form of a roll are respectively loaded into a film roll chamber 18 and a cartridge chamber 19 which are formed so as to sandwich the exposure frame 17 therebetween. Note that the cartridge 16 and film 15 used here are 35 mm film (135 film) containing a cartridge specified by the international standard (ISO 1007-1979 edition).

A photographing lens 2 is disposed inside the main body base 12.
In addition to photographing mechanisms such as a shutter and a film winding mechanism, a dark box 22 is provided to guide subject light incident from a photographic lens 20 to an exposure frame 17. A finder eyepiece window 24 is formed on the back cover 13, and this finder eyepiece window 24 has a viewing range corresponding to the normal area. Furthermore, a curved film regulating surface 26 is formed on the inner surface of the back cover 13, and the back cover 13 is connected to the main body base 12.
By attaching it to the camera, it is positioned at a predetermined exposure position.

A crank member 30 is sandwiched between the back cover 13 and the main body base 12. This clamp is optically tightly clamped between a convex portion provided on the back cover 13 and the main body base 12, and is slidably clamped along the convex portion in the film transport direction. As shown in FIG. 1, the crank member 30 is provided with an operating member 35 on the rear side that protrudes from the outline of the lens-fitted film unit 10. As shown in FIG. 2, the operating member 35 is operated in a normal area (indicated by "N" in FIG. 1), a panoramic area (indicated by "P" in FIG. 1), and a telephoto area for each shooting according to the photographer's intention. area(
It is indicated by "T" in FIG. ) is a lever that is slid and operated.

A panoramic viewing range frame 36 corresponding to the panoramic area and a telephoto viewing range frame 37 corresponding to the telephoto area are provided in the central portion of the crank member 30. The panoramic and telephoto viewing range frames 36 and 37 are located in front of the finder eyepiece 24 when the operating member 35 is slid to the panoramic and telephoto areas, respectively, and correspond to the normal area. The viewing range is switched to the viewing range corresponding to the panoramic and telephoto areas.

A panoramic code signal plate 38 corresponding to the panoramic area and a telephoto code signal plate 39 corresponding to the telephoto area are provided below the crank member 30. This panoramic code signal plate 38 is provided with one elongated hole 38a, and the telephoto code signal plate 3
9 is provided with two long holes 39a and 39b. These signal plates 38 and 39 move the film of the exposure frame 17 so that when the operating member 35 is operated to the respective positions of the panoramic area and the telephoto area, the film is positioned within the exposure frame 17 in response to this operation. They are formed at intervals that allow for the length in the direction. Note that when the panoramic and telephoto code signal boards 38 and 39 are located within the exposure frame 17,
They are located outside the range corresponding to the panoramic area and the range corresponding to the telephoto area within the exposure range corresponding to one frame of the film 15.

The unit main body 11 assembled in this way is always covered with an exterior body 40 such as a paper box, and the photographic lens 20, release button 41, winding knob 42, finder objective window 44, and operation members are attached to this exterior body 40. Holes are made to expose 35 etc., and operations can be made through these holes.

Next, the finder and exposure surface when operating the operating member 35 of the lens-fitted film unit 10 shown in FIG. 1 in the normal area (indicated by "N" in FIG. 1) are shown in FIG. ) and (B).

Next, the case where photographing is performed by operating the operating member 35 to the position of the telephoto area (indicated by "T" in FIG. 1) will be explained. The field of view of the finder eyepiece window 24 at this time is shown in FIG. Shown in (D). When the shutter release is performed, the same exposure as in FIG. 4(B) is performed. Within the exposure range of the film 15 exposed by the subject light at this time,
Since the telephoto code signal plate 39 is located, the image 51a of the telephoto code signal plate 39 is exposed to the subject light.

Next, the case where photographing is performed by operating the operation member 35 to the position of the panoramic area (indicated by "P" in FIG. 1) will be explained.
The field of view range is shown in Fig. 4(F). When the shutter release is performed, the same exposure as shown in FIG. 4B is performed, and since the panoramic code signal plate 38 is located within the exposure range of the film 15 exposed to the subject light, the panoramic image is created by the subject light. The image 52a of the code signal plate 38 is exposed.

At the developing laboratory, the film is taken out from the cartridge and developed. The developed negative film is set in a printing device. The printing device has a built-in device that automatically reads images 51a and 52a of telephoto and panoramic code signals 38 and 39 recorded on the negative film. Therefore, depending on the signal obtained from this device, masks corresponding to each of the panoramic and telephoto viewing frames are usually set, and the enlargement magnification is determined in accordance with these masks to perform the printing process.

For example, when printing the first frame 50 of the film 15 in FIG. 4(B), standard printing is performed using a conventional mask, so a printed photograph as shown in FIG. 4(C) is obtained. It will be done. Furthermore, when printing the second frame 51 of the film 15 shown in FIG. 4(B), a mask with a narrower area than a conventional mask is used because the image 39a of the telephoto code signal 39 is exposed. Since the photograph is printed using a pseudo-telephoto printing method in which the photograph is printed at a magnification higher than that of a standard print, a printed photograph such as that shown in (E) in the figure is obtained. Furthermore, when printing the third frame 52 of the film 15 shown in FIG. 4(B), since the image 38a of the panoramic code signal 38 is exposed, the horizontally long area is narrower in the height direction than the conventional mask. The image is printed using a pseudo-panoramic printing method that prints at a larger magnification than a standard print using a mask that has been changed, so a printed photograph like that shown in (G) in the same figure is obtained.

Next, a second embodiment of the present invention will be described with reference to FIGS. 5 and 6. In this second embodiment, an L-shaped member 60 from which an operating member 35 is provided protrudes.
A code signal recording mechanism consisting of a and an interlocking rod 62 is built into the lens-fitted film unit 10. Said L
A panoramic viewing range frame 36 and a telephoto viewing range frame 37 are provided on the vertical plate portion of the character-shaped member 60 on both sides of a viewing range 63 corresponding to the normal area. It should be noted that this arrangement has the advantage that when operating the operating member 35 from the normal area position to the telephoto area position, the stroke of the slide operation is shorter than in the first embodiment, and the slide operation can be completed in a single time. be.

A cam groove 65 is provided in the horizontal plate portion of the L-shaped member 60, and the interlocking rod 6 is inserted into the cam groove 65.
The two bent ends 62a are engaged. This interlocking rod 62
As shown in FIG. 5, the straight part 62b of this passes through the dark box 22 and is rotatably supported on both sides of the dark box 22.
A code signal plate 61 is provided on the straight line portion 62b located within 2. This code signal board 61 has three boards 61a.
, 61b, 61c, of which the plate 61b
Only one part can be bent upward.

The operation member 35 is moved to the normal area ("
Indicated by "N". ) position, the bent portion 62a is located in the straight groove 65c of the cam groove 65, and the code signal plate 61 is set in a position on the upper surface side of the dark box 22 that does not block the subject light. When the operating member 35 is slid to the panoramic area (indicated by "P" in FIG. 5) position, the bent portion 62a is located in the linear groove 65a of the cam groove 65. Since the cam groove 65 is formed such that the linear groove 65c and the linear groove 65a thereof are displaced with respect to the direction of the optical axis P, the interlocking rod 62 is rotated clockwise in accordance with this displacement. As a result, the code signal plate 61 is set in a position where it protrudes into the dark box 22 and blocks light from the subject. This light shielding is designed to block light in an exposure range corresponding to one frame of the film 15 other than the range corresponding to the panoramic area, and this range is hatched in the third frame 52 of the film 15 shown in FIG. This is the position shown in . Incidentally, among the code signal plates 61 set at this time, the plate 61b comes into contact with the stopper 70 shown in the figure and is biased so as not to rotate clockwise.

The operation member 35 is moved to the telephoto area (as shown in FIG. 5).
Indicated by "T". ), the bent portion 62a is located in the straight groove 65b of the cam groove 65. This cam groove 65 has a linear groove 65a and a linear groove 65.
b is formed displaced with respect to the optical axis P direction,
The interlocking rod 62 is rotated in accordance with this displacement. As a result, the code signal plate 61 is set at a position where its plates 61a and 61c further protrude into the dark box 22 and block both sides of the object light. This light shielding is done by film 15.
Of the exposure range corresponding to the frame, light is blocked outside the range corresponding to the telephoto area, and this range is shown in Figure 6.
This is the convex area shown by hatching in the second frame 51 of the film 15 shown in FIG. The photographic film 15 exposed to such code signals is discriminated by a printing device in a developing laboratory and printed in accordance with each code signal.

In the first and second embodiments, panoramic and telephoto frames 36 and 37 are provided for switching the viewing range of the finder eyepiece window 24, but the present invention is not limited to this, and as shown in FIG. A transparent plate (made of glass, plastic, etc.) 75 formed by four straight lines a, b, c, and d to form a frame corresponding to the panoramic and telephoto viewing ranges is incorporated into the finder objective window 44 of the lens-equipped film unit 10. This eliminates the need to separately provide the panorama and telephoto frames 36 and 37, leading to improved cost reduction.

In this embodiment, an example in which the present invention is applied to a lens-equipped film unit has been described, but it may of course be applied to a general camera.

[0026]

According to the present invention, it is possible to provide a camera that has a simple mechanical structure and can produce prints of various magnification sizes at low cost.

[Brief explanation of drawings]

FIG. 1 is a perspective view schematically showing the main parts of a camera according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing the appearance of the camera.

FIG. 3 is an exploded perspective view showing the main parts of the camera.

[Fig. 4] (A), (D), and (F) are explanatory diagrams showing the state seen through the finder of the camera, and (B) is an explanatory diagram showing the negative film photographed by the camera. . Furthermore, (C), (E), and (G) are explanatory diagrams showing printed photographs obtained from negative film.

FIG. 5 is a perspective view schematically showing the main parts of a camera according to a second embodiment of the present invention.

FIG. 6 is an explanatory diagram showing a negative film photographed by a camera according to a second embodiment.

FIG. 7 is an explanatory diagram showing another example of a viewfinder viewing range changing means.

[Explanation of symbols]

10 Film unit with lens 15 Film 17 Exposure frame 20 Photography lens 35 Operation member 36 Panorama viewing range frame 37 Telephoto field of view frame 38　Panorama code signal board 39 Telephoto code signal board

Claims (2)

[Claims] 1. A camera that uses photographic film that is printed in print areas corresponding to a plurality of predetermined masks used in a printing device, and that has a finder independent of the photographic optical system. An operating member selects a print area intended by the photographer from among the areas, and a code signal for identifying the print area is transmitted to the print area using the subject light incident from the photographing optical system in conjunction with the operation of this operating member. The camera is characterized by comprising a recording means for recording each frame of the photographic film, and a viewing range changing means for switching the viewing range of the finder to a range corresponding to the print area in conjunction with the operation of the operating member. Camera to do. 2. A camera that uses photographic film that is printed in print areas corresponding to a plurality of predetermined masks used in a printing device, and that has a finder independent of the photographic optical system. an operating member that is slidable in a film transport direction for selecting a print area intended by the photographer from among the print areas; and an operating member that is slidable in a film transport direction to select a print area intended by the photographer from among the print areas; A viewing range changing means is provided on a rotatable interlocking rod disposed in the film transport direction, and is provided on a rotatable interlocking rod arranged in the film transport direction to block part of the subject light incident on the exposure frame in response to rotation of the interlocking rod. A camera comprising: a light-shielding member for recording a code signal for identifying each frame of the photographic film; and a cam for regulating the amount of rotation of the interlocking portion in accordance with the operation of the operating member.