JP2613324B2 - camera - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the structure of a camera for performing photographing corresponding to a print area intended by a photographer among print areas corresponding to a plurality of predetermined masks used in a printing apparatus. is there.

[0002]

2. Description of the Related Art In addition to a standard print for printing the entire area of a negative film frame, a photographic print is a special print for printing a smaller area than a standard print at a larger magnification than a standard print, such as a pseudo panoramic print or a pseudo telephoto print. There is a way. A method for obtaining the former pseudo panoramic print is shown in U.S. Pat. No. 4,357,102. In this prior art, a mask that blocks the upper and lower portions of the finder field of view is fixed to the camera, and a scene that can be observed through the finder is photographed in full size. When the film is developed and printed, by masking the upper and lower portions of the negative in the same manner as the viewfinder of the camera, a horizontally long screen can be obtained. But,
Since the screen recorded on the negative remains at full size, when printing at a film processing laboratory, print at the full size or print in the landscape format intended by the photographer. Could not know the print area intended by the person.

Therefore, as a method of knowing the print area intended by the photographer, it is necessary to input a selection signal by the photographer for each photographing, and in response to this selection signal, to select a selection signal for each frame of the photo film. Recording is required in accordance with the requirements. Such a camera is disclosed in US Pat.
No. 3997. In this camera, when a photographer performs a lever operation in accordance with a print area intended for each photographing operation, an exposure mark corresponding to the operation is printed by guiding external light to an area other than the exposure area of the film by an optical fiber and printed. 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 is increased and the internal structure of the camera is complicated due to the incorporation of the optical fiber.

The present invention has been made in view of the above-described drawbacks, and provides a code signal corresponding to a print area intended by a photographer among a plurality of predetermined print areas for each frame of a photographic film. It is an object of the present invention to provide a recordable camera structure at low cost.

[0006]

According to the present invention, there is provided an operation member for selecting a print area intended by a photographer from among a plurality of print areas,
In conjunction with the operation member, a recording means for recording a code signal for identifying the print area for each frame of the photographic film using subject light incident from the photographing optical system, and in conjunction with the operation member, A view range changing means for switching a view range of the viewfinder to a range corresponding to the print area.

According to the second aspect of the present invention, an operation member slidable in a film transport direction for selecting a print area intended by a photographer among a plurality of print areas, and interlocked with the operation of the operation member And a field-of-view range changing means for switching the field of view by the finder to a range corresponding to the print area, and a rotatable interlocking bar arranged in the film transport direction, and the exposure frame is provided in accordance with the rotation of the interlocking bar. A light-shielding member that shields a part of incident subject light and records a code signal for identifying a print area for each frame of the photo film, and a cam that regulates a rotation amount of the interlocking unit according to an operation of the operation member. It has.

[0008]

1 and 2 show a camera according to a first embodiment of the present invention. This camera is disclosed in Japanese Patent Application No. 62-20287.
No. 6 film unit 10 with lens
An operation member for selecting a print area intended by the photographer, a recording unit for recording a code signal for identifying the print area for each frame of the film using subject light incident from the photographing lens, It incorporates a field-of-view range changing unit that switches the field of view by the finder to a range corresponding to the print area intended by the photographer.

The unit body 11 of the lens-fitted film unit 10 is composed of a body base 12 and a back cover 13 and the like. A patrone 16 for storage and a film 15a drawn out of the patrone 16 and formed into a roll are respectively loaded into a film roll chamber 18 and a patrone chamber 19 formed so as to sandwich the exposure frame 17. The patrone 16 and the film 15 used here are a 35 mm film (135 film) containing a patrone specified by an international standard (ISO1007-1979).

The photographing lens 2 is provided inside the main body base 12.
In addition to a photographing mechanism such as a shutter, a film winding mechanism, and the like, a dark box 22 that guides subject light incident from a photographing lens 20 to an exposure frame 17 is provided. A finder eyepiece window 24 is formed in the back cover 13, and the finder eyepiece window 24 has a visual field range corresponding to a normal area. Further, a curved film regulating surface 26 is formed on the inner surface of the back cover 13, and the back cover 13 is attached to the main body base 1.
By mounting the lens on the exposure light 2, 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 sandwiching is light-tightly sandwiched between a convex portion provided on the back cover 13 and the main body base portion 12, and is slidably fitted along the convex portion in the film transport direction. As shown in FIG.
As shown in the figure, the film unit with lens 10
An operation member 35 is provided that protrudes from the outline of the operation member 35. As shown in FIG. 2, the operation member 35 has a normal area (indicated by “N” in FIG. 1), a panoramic area (indicated by “P” in FIG. 1), and telephoto for each photographing according to the photographer's intention. The lever is slid to an area (indicated by "T" in FIG. 1).

At the center of the crank member 30, a panoramic viewing range frame 36 corresponding to the panoramic area and a telescopic viewing range frame 37 corresponding to the telephoto area are provided. The panoramic and telescopic viewing range frames 36, 37
When the operation member 35 is slid to the respective positions of the panorama area and the telephoto area, the operation member 35 is positioned at the front of the finder eyepiece 24, and the visual field range corresponding to the normal area corresponds to the panorama area and the telephoto area. Switch to the viewing range.

Below the crank member 30, a panorama code signal plate 38 corresponding to a panorama area and a telephoto code signal plate 39 corresponding to a telephoto area are provided. The panorama code signal plate 38 is provided with one long hole 38a.
9 has two elongated holes 39a and 39b. When the operation member 35 is operated to the respective positions of the panoramic area and the telephoto area, the signal plates 38 and 39 transfer the film of the exposure frame 17 so as to be positioned within the exposure frame 17 in accordance with the operation. It is molded at intervals that allow the length in the direction. When the panorama and telephoto signal boards 38 and 39 are located within the exposure frame 17,
Of the exposure range corresponding to one frame of the film 15, the exposure range is located outside the range corresponding to the panoramic area and the range corresponding to the telephoto area.

The unit body 11 thus assembled
, A hole for exposing the photographing lens 20, the release button 41, the winding knob 42, the finder objective window 44, the operation member 35, and the like is formed in the exterior body 40 at all times. Operable through these holes.

Next, when the operation member 35 of the film unit with lens 10 shown in FIG. 1 is operated in the position of the normal area (indicated by "N" in FIG. 1), the viewfinder and the exposure surface are shown in FIG. ) And (B).

Next, a description will be given of a case where the photographing is performed by operating the operation member 35 at the position of the telephoto area (indicated by "T" in FIG. 1). It is shown in (D). When the shutter release is performed, the same exposure as in FIG. 4B is performed. In 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 telecode code signal plate 39 is exposed by the subject light.

Next, a case in which the operation member 35 is operated to the position of the panoramic area (indicated by "P" in FIG. 1) for photographing will be described. The viewfinder eyepiece window 24 at this time will be described.
Is shown in FIG. 4 (F). When the shutter release is performed, the same exposure as in FIG. 4B is performed. Since the panorama code signal plate 38 is located within the exposure range of the film 15 exposed by the subject light, the panorama is performed by the subject light. The image 52a of the use code signal plate 38 is exposed.

At the developing station, the film is taken out of the patrone and is subjected to a developing process. The negative film subjected to the development processing is set in a printing apparatus. The printing device has a built-in device for automatically reading the images 51a and 52a of the telephoto and panorama code signals 38 and 39 recorded on the negative film. Therefore, in general, a mask corresponding to each of the panorama and the telescopic field frame is set in accordance with the signal obtained from this apparatus, and the enlargement magnification is determined in accordance with these masks to perform the printing process.

For example, when the first frame 50 of the film 15 shown in FIG. 4B is printed, standard printing is performed using a conventional mask, so that a printed photograph as shown in FIG. 4C is obtained. Can be When printing the second frame 51 of the film 15 shown in FIG. 4B, a mask having a smaller area than the conventional mask is used because the image 39a of the telephoto code signal 39 is exposed. In this case, the image is printed by the pseudo telephoto printing method in which the image is printed at a larger magnification than the standard print, so that a print photograph as shown in FIG. Further, when the third frame 52 of the film 15 shown in FIG. 4B is printed, since the image 38a of the panorama code signal 38 is exposed, a horizontally long area whose height direction is narrower than that of a conventional mask is required. The printed image is printed by the pseudo panoramic printing method of printing at a larger magnification than the standard print using the changed mask, so that a print photograph as shown in FIG.

Next, a second embodiment according to the present invention will be described with reference to FIGS. In the second embodiment, an L-shaped member 60 provided with a projecting operation member 35 is provided.
And a code signal recording mechanism comprising an interlocking bar 62 is built in the film unit 10 with a lens. Said L
The vertical plate portion of the character member 60 is provided with a panoramic viewing range frame 36 and a telescopic viewing range frame 37 on both sides of a viewing range 63 corresponding to a normal area. When the operating member 35 is operated from the position of the normal area to the position of the telephoto area, the advantage of this arrangement is that the stroke of the slide operation is shorter than that of the first embodiment, and the slide operation is completed in a single time. is there.

A cam groove 65 is provided in the horizontal plate portion of the L-shaped member 60.
The two bent ends 62a are engaged. This link rod 62
As shown in FIG. 5, the straight portion 62b is rotatably supported on both sides of the dark box 22 as shown in FIG.
The code signal plate 61 is provided in the linear portion 62b located in the inside. This code signal plate 61 has three plates 61
a, 61b and 61c, of which the plate 61
Only b can be bent upward.

When the operation member 35 is slid to a normal area (indicated by "N" in FIG. 5), the bent portion 62a is positioned in the straight groove 65c of the cam groove 65, and the code signal is further transmitted. The plate 61 is set on the upper surface side of the dark box 22 so as not to block the subject light. When the operation member 35 is slid to a panoramic area (indicated by “P” in FIG. 5), the bent portion 62 a is positioned in the straight groove 65 a of the cam groove 65. This cam groove 65
Since the linear groove 65c and the linear groove 65a are formed so as to be displaced in the direction of the optical axis P, the interlock rod 62 is rotated clockwise in accordance with the displacement. As a result, the code signal plate 61 is set at a position protruding into the dark box 22 and shielding the subject light. The light is shielded from the exposure range corresponding to one frame of the film 15 other than the range corresponding to the panorama area, and this range is hatched to the third frame 52 of the film 15 shown in FIG. This is the position indicated by. Of the code signal plates 61 set at this time, the plate 61b is biased so that the stopper 70 shown in FIG.

When the operation member 35 is slid to the telephoto area (indicated by "T" in FIG. 5), the bent portion 62a is located in the straight groove 65b of the cam groove 65. The cam groove 65 has a linear groove 65a and a linear groove 6a.
5b is displaced in the direction of the optical axis P, so that the interlocking rod 62 is rotated in accordance with the displacement. Thus, the code signal plate 61 is composed of the plates 61a and 61c.
Are set to positions protruding further into the dark box 22 and blocking both sides of the subject light. This shading is applied to the film 15
In the exposure range corresponding to one frame, the portion other than the range corresponding to the telephoto area is shielded from light, and this range has a convex shape shown by hatching on the second frame 51 of the film 15 shown in FIG. Range. The photographic film 15 to which such code signals have been exposed is discriminated by a printing apparatus in a development shop, and printed in accordance with each code signal.

In the first and second embodiments, the panorama and telephoto frames 36 and 37 for switching the field of view of the finder eyepiece window 24 are provided. However, the present invention is not limited to this, and as shown in FIG. A transparent plate (material such as glass and plastic) 75 formed by four frames a, b, c, and d corresponding to a panorama and a telescopic field of view is incorporated in the finder objective window 44 of the film unit 10 with lens. This eliminates the necessity of separately providing the panorama and telephoto frames 36 and 37, thereby improving cost reduction.

In this embodiment, an example is described in which the present invention is applied to a film unit with a lens. However, the present invention may be applied to a general camera.

[0026]

According to the present invention, it is possible to provide a camera capable of obtaining prints of various magnification sizes at a low cost with a simple mechanical structure.

[Brief description of the drawings]

FIG. 1 is a perspective view schematically showing a main part 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 a main part of the camera.

FIGS. 4A, 4D, and 4F are explanatory diagrams showing a state of looking through a finder of the camera, and FIG. 4B is an explanatory diagram showing a negative film photographed by the camera; . Further, (C), (E), and (G) are explanatory views showing print photographs obtained from a negative film.

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

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

FIG. 7 is an explanatory view showing another example of the view range changing means of the finder.

[Explanation of symbols]

 Reference Signs List 10 Film unit with lens 15 Film 17 Exposure frame 20 Shooting lens 35 Operation member 36 Panoramic viewing range frame 37 Telescopic viewing range frame 38 Panoramic code signal board 39 Telephoto code signal board

Claims (2)

(57) [Claims] 1. A camera which uses a photographic film which is printed in a print area corresponding to a plurality of predetermined masks used in a printing apparatus and has a finder independent from a photographic optical system. An operation member for selecting a print area intended by a photographer out of the area, and a code signal for identifying the print area is interlocked with the operation of the operation member by using subject light incident from the imaging optical system. Recording means for recording each frame of the photo film, and field-of-view changing means for switching a field of view of the finder to a range corresponding to the print area in conjunction with operation of the operation member. Camera. 2. A camera which uses a photographic film which is printed in a print area corresponding to a plurality of predetermined masks used in a printing apparatus and has a finder independent from a photographing optical system. An operation member slidable in a film transport direction for selecting a print area intended by the photographer from among the print areas, and a field of view by the finder corresponding to the print area in conjunction with operation of the operation member. A field-of-view range changing means for switching to a range, and a rotatable interlocking bar arranged in the film transport direction, wherein a part of the subject light incident on the exposure frame is shielded according to the rotation of the interlocking bar, and the print area is blocked. A light shielding member for recording a code signal for identifying each frame of the photographic film, and A camera, comprising: a cam for regulating a rotation amount of the interlocking portion.