JPH05232554A - Consecutive photographing camera - Google Patents

Abstract

PURPOSE:To provide a small-sized and inexpensive consecutive photographing camera capable of high speed consecutive photographing by the feed of film. CONSTITUTION:A disk-like shutter plate 4, a shutter base plate 5, an exposing frame 6 and photographic film 2 are provided on a photographing optical axis passing through the center of a lens 3. Four slits 4a-4d are allowed to pass through an exposing aperture 5a, so that a photographing luminous flux exposes the film 2 as four consecutive photographic image frames 9a-9d through the exposing frame 6. The size of the consecutive image frames 9a-9d is 24mmX8mm and they are spaced by 1.5mm, then the feeding amount of the film 2 taken up to a take-up spool 10 in order to expose a next frame after finishing first exposure is 9.5mm.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a continuous shooting camera. More specifically, the present invention relates to a continuous shooting camera that shoots a continuous shooting screen by film feeding.

[0002]

2. Description of the Related Art When a moving subject is sequentially photographed with a time lag, it is possible to continuously obtain photographic images whose movement has stopped at each moment of photography. It is very convenient that you can observe the form that changes as a still image. Various continuous shooting cameras have been proposed from such a background, but they are roughly classified into those having a plurality of exposure apertures and those continuously shooting with one exposure aperture. As a device having a plurality of exposure apertures, for example, Japanese Patent Laid-Open No. 2-105132
A continuous shooting camera described in Japanese Patent Publication has been proposed. In this continuous shooting camera, the continuous shooting screens are arranged in a "T" shape through four exposure apertures. Also,
Sequential shooting camera "Sequential shooting Cardia" Bune "" (8 continuous shooting screens that are temporally offset) can be taken by slits provided on a rotary shutter plate that sequentially crosses eight exposure openings arranged in parallel. The product name) is manufactured and sold by the applicant.

On the other hand, in the case of shooting a continuous shooting screen with one exposure aperture, the film is fed for each exposure of the continuous shooting screen of one frame, and the continuous shooting screens temporally shifted are taken in parallel on the film. It is known how to do it. For example, when shooting is performed in the high-speed continuous shooting mode of a single-lens reflex camera, it is possible to shoot at 5 to 10 frames / second with one shutter release. Also, when performing continuous shooting with a general compact camera, there are many methods in which normal shooting is repeated by pressing and holding the release button.
It was a low-speed continuous shooting of about 2 frames / sec.

[0004]

If an attempt is made to shoot a continuous shooting screen by high-speed continuous shooting of 5 frames to 10 frames / second with one exposure aperture, the device for the continuous shooting camera becomes complicated and the camera body of the camera body becomes complicated. The size tended to increase. There is also a problem that the components of the continuous shooting camera are expensive and the cost is high. The present invention has been made in consideration of the above-mentioned problems of the prior art. A continuous shooting camera that uses a 35 mm film and is capable of performing high-speed continuous shooting at 5 frames to 10 frames / sec. The purpose is to provide.

[0005]

In order to achieve the above object, in a continuous shooting camera which shoots a continuous shooting screen by film feeding, one full size 35 mm film screen is divided into an integer number in the film feeding direction. The continuous shooting screen is shot within one full-size screen. Also,
A panorama size screen is divided into integers and an integer number of continuous shooting screens are shot.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. The 35 mm photographic film 2 shown in FIGS.
As is well known, perforations 2a formed at equal intervals are formed outside the upper and lower exposure ranges. If you want to take a standard picture on the photo film 2 with a normal camera, you can use
2 on the exposed surface between the perforations 2a
The size of 4 × 36 mm is sequentially taken as a shooting screen (full size screen) 2b in one exposure. The length of the shooting screen 2b in the film feeding direction is 36.
Since the distance between adjacent shooting screens 2b is 2 mm, the feeding amount A of the photo film 2 sent for the next shooting after one shooting is 38 mm. The feed amount A is exactly eight perforations 2a.

In FIG. 1 showing a shutter device of a continuous shooting camera embodying the present invention for photographing using the 35 mm photographic film 2, a disk-shaped shutter plate 4 is provided on the photographing optical axis passing through the center of the lens 3. A shutter substrate 5, an exposure frame 6 and a photographic film 2 are provided. The shutter plate 4 is rotatably supported by a shaft 7 embedded in the shutter substrate 5, and is driven by a motor 8 having a shape in which a tip 8a of the rotary shaft fits with the shaft 7. Further, the shutter substrate 5 is formed with an exposure opening 5a, and the four slits 4a, 4b, 4c, and 4d provided in the shutter plate 4 pass through to expose the photographic film 2 with the photographing light flux. The photographing light flux that has passed through the exposure opening 5a is exposed to the exposure frame 6
4 continuous shooting screens 9a, 9 on the photo film 2 via
It is exposed as b, 9c and 9d.

The continuous shooting screens 9a, 9b, 9c and 9d are shown in FIG.
As shown in FIG. 3, the screen size is 24 mm long × 8 mm wide, with intervals of 1.5 mm, and the feeding amount B of the photographic film 2 sent for one exposure is 9.5 mm. The photographic film 2 is wound up by the take-up spool 10 rotating in the counterclockwise direction, and the film cartridge 11 is rotated.
Drawn from. The take-up spool 10 has a built-in motor 12 for winding the film, and its driving force is gear 1
3 is transmitted to the film feeding mechanism 14. The film feeding mechanism 14 receives the driving force from the gear 13, and when the film is wound up, the film spooling mechanism 10 is driven via the gear 15.
When the film is rewound, the rewinding fork 17 is driven via the gear 16.

A sprocket 20 engages with the perforations 2a and rotates as the photographic film 2 is fed.
The feeding amount of the photographic film 2 is detected by the sprocket 20 and the encoder 23. The encoder 23 is integrally fixed to the sprocket 20 and includes a signal plate 21 having radial slits formed therein and a photosensor 22 for photoelectrically detecting the rotation of the signal plate 21. Photo sensor 2
2 calculates the number of passing through the slits of the through holes when the film is wound, and issues a stop signal for the motor 12 when the feeding amount of the photographic film 2 reaches a predetermined amount.

The operation of the continuous shooting camera configured as described above will be described below. If a continuous shooting camera is set up to photograph the moment of the player's goal beside the goal line of athletics and the shutter release is performed immediately before the player finishes the goal, the motor 8 drives and the shutter plate 4 rotates. First, when the slit 4a crosses the exposure opening 5a, the photographing light flux of the subject is exposed on the continuous shooting screen 9a of the photographic film 2 through the exposure frame 6. When the slit 4a completely traverses the exposure opening 5a and the exposure of the continuous shooting screen 9a is completed, the photographic film 2 is driven by the motor 12 and the feeding amount B is fed to the take-up spool 10.
It is wound (9.5mm) and stopped again. At this time, since the continuous shooting screen 9b is supported at a position facing the exposure frame 6, the slit 4b crosses the exposure opening 5a so that a subject image that is temporally different from the subject image exposed on the continuous shooting screen 9a. Is exposed on the continuous shooting screen 9b.

Continuously, a continuous shooting screen 9c on the photo film 2,
9d exposure is performed, and four continuous shooting screens are displayed on the photo film 2
Will be taken in sequence. Normal full size screen (ie 1
The feeding amount A of the photographic film 2 sent at each exposure is 3
If the time required to feed the film is 0.8 sec when continuous shooting is performed at 8 mm), the feeding amount B of the photographic film 2 sent in one exposure is 9 in the continuous shooting camera embodying the present invention. Since it is 0.5 mm, the time required for it is 0.2 sec.
Can be shortened. Therefore, even if the motor 12 for feeding at the same rotation speed is used, the film can be fed for the exposure of the next screen of the continuous shooting screen in 1/4 of the time of the normal camera, so that high speed continuous shooting is possible. It will be possible.

When the exposure of the entire screen is completed, the shutter plate 4 is
When it rotates 0 ° and returns to the starting position again, the motor 8 stops and rotation also stops. The winding motor 12 has a continuous shooting screen 9d.
Even after being exposed, the photo film 2 is wound on the take-up spool 10 by the feeding amount B (9.5 mm) and is set in a standby state for the next shooting. FIG. 5 conceptually shows a print photograph 24 on which the photograph film 2 photographed as described above is printed. The four-frame continuous shooting screens 9a to 9d have the same size as the screen size for service print, and by performing the same process as the print process up to now, a single vertically long print screen 24a to 24d is provided. A print photograph 24 is obtained. The continuous photographs obtained in this manner have a form in which the frames are arranged side by side with the passage of time, which is very advantageous in terms of reproducibility of continuous shooting scenes. In this embodiment, since the photographic film 2 is fed from right to left with respect to the optical axis, the print screens 24a to 24d are earlier in time as they are located on the left side.

FIG. 4 shows continuous shooting screens 25a to 25d taken by a continuous shooting camera with the exposure frame 6 improved. As in the previous embodiment, a 35 mm photo film 2 is used for shooting, but the exposure frame 6 of the continuous shooting camera shown in FIG. 1 is changed to form a split panoramic screen cut by 5.5 mm at the top and bottom. ing. Screen size is 13 mm long
The width is 8 mm, and the interval W ₂ between continuous shooting screens is 1.33 mm. However, a wide interval is provided for each continuous shooting screen of four frames, and the interval W ₁ is 2 mm. Therefore, the feeding amount C ₁ of the photographic film 2 sent for the exposure of the next continuous shooting screen after the end of one exposure is 9.33 mm. However, after the continuous shooting screen 25d, which is the last frame of the four screens, is exposed, the photographic film 2 is sent to put it in a standby state for the next continuous shooting, but the screen interval W ₁ is wide. Therefore, the feeding amount C ₂ (10 mm) longer than the feeding amount C ₁ is fed. A frame 26 indicated by a chain double-dashed line shows a photographing screen of ordinary photographing for comparison.

Continuous shooting screens 25a to 25 as shown in FIG.
The shutter device of the continuous shooting camera for shooting d has almost the same structure as the shutter device shown in FIG. However, since the length of the continuous shooting screen in the vertical direction is shortened, the light-shielding members are projected above and below the exposure frame 6 to narrow the exposure range as in the panoramic size shooting. Further, since the feeding amounts C ₁ and C ₂ of the photographic film 2 change periodically, a stepping motor is used as the film winding motor 12 so as to correspond to the periodic change of the feeding amount. In the printing work of the photographed photo film 2, the conventional panorama print processing is performed to print the size of two service prints, and as in the above-described embodiment, the frames are arranged side by side with the passage of time. It becomes a shape. Further, in the present embodiment, the feeding amount is changed so that the exposure is performed by periodically changing the screen interval, but it is also possible to set the same interval (9.5 mm).

In the embodiment described above, 3
One screen of a 5 mm photo film 2 (24 mm x 36 m
m) or 1 screen of panorama size (13 to 14 mm)
Although one frame of the continuous shooting screen is projected on the screen divided into four (36 mm × 36 mm), the number of divisions may be other than four.
Further, when it is desired to shoot a large number of frames in one continuous shooting, it is possible to expose a series of moving subject images over two or more screens.

[0016]

As described above, according to the continuous shooting camera of the present invention, in a continuous shooting camera for shooting a continuous shooting screen by film feeding, one full size 35 mm film screen is divided into integers in the film feeding direction. Since an integer number of continuous shooting screens are shot within one full-size screen, the film feed that is performed after exposure of the continuous shooting screens can be performed in a short time, regardless of complicated mechanism or expensive parts. High-speed continuous shooting is possible. Also, a full size 1 of 35mm film
Even if the upper and lower parts of the screen are masked and an integral number of continuous shooting screens are shot within one panorama size screen, the film feed can be shortened similarly and high-speed continuous shooting becomes possible. Regarding the development print processing, the same processing as that of the conventional panorama size photograph can be performed.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a shutter device of a continuous shooting camera embodying the present invention.

FIG. 2 is an explanatory diagram showing a size of a screen imaged by the continuous shooting camera shown in FIG.

FIG. 3 is an explanatory diagram showing the size of a screen normally captured on a 35 mm film.

FIG. 4 is an explanatory diagram showing a size of a screen imaged by a modification of the continuous shooting camera shown in FIG.

5 is a conceptual diagram showing a print photograph taken by the continuous shooting camera shown in FIG.

[Explanation of symbols]

2 Photo film 2a Perforation 4 Shutter plate 6 Exposure frame 9a to 9d Continuous shooting screen 12 Motor 20 Sprocket 23 Encoder 24 Print photo A, B, C ₁ , C ₂ Feed amount

Claims (2)

[Claims] 1. A continuous shooting camera for shooting a continuous shooting screen by film feeding, in a full size 1 of 35 mm film.
A continuous shooting camera characterized by dividing the screen into integers in the film feed direction and shooting an integer number of continuous shooting screens within one full size screen. 2. The continuous shooting camera according to claim 1, wherein the upper and lower sides of one full-size screen of the 35 mm film are masked to capture an integral number of continuous shooting screens within the panoramic size screen.