JP3004729U - Dividing device in multi-screen photographing device - Google Patents

Abstract

(57) [Summary] [Purpose] Multiple images are separately printed on the same film screen. [Structure] Two sets of mirror pairs 2 and 3 arranged symmetrically in the horizontal direction with respect to an optical axis A of a photographing lens L of a camera, a dustproof glass 4 covering a front surface of the mirror pair 2, 3 and a dustproof glass 4 And a cover 5 holding the openings 5a and 5b, and the shafts 11 and 11 on both sides of the multi-screen photographing device 10.
The pair of shading frames 12 and 13 are pivotally attached, and springs 18 and 19 bias the shading frames 12 and 13 in both the opening direction and the shading direction, respectively. By opening one of the light-shielding frames 12 and 13 and shielding the other from light, it is possible to photograph different images on the same film screen.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention uses a multi-screen photographing device mounted on the front surface of a photographing lens of a camera and capable of simultaneously photographing two or four sets of the same subject on the same film screen from different viewpoints at the same time. The present invention relates to an image capturing device in a multi-screen image capturing device capable of capturing a required number of different images.

[0002]

[Prior art]

 Conventionally, as a camera that can take two or four portrait pictures required for various licenses, certificates, passports, etc. at the same time, the inside of the camera body is divided into two equal parts or four equal parts, and this partition is used for partitioning. A twin-lens camera capable of taking two or four pictures adjacent to each other on the same film screen by providing two or four taking lenses each with a shutter in the front corresponding to each room Or, a four-lens camera is well known.

This type of four-lens camera is provided with a switching knob on the camera body side for switching one shot, two shots, or four shots. By operating this switching knob, each shutter can be operated. A light-shielding sector provided in close proximity shields the lens that does not need to be photographed, and only the required screen can be photographed one by one, two by two, or four at the same time.

Further, a normal camera is used instead of such a special camera, and a viewpoint limiting member having two or four mirror pairs symmetrically opposed to each other with respect to the optical axis is attached to the front surface of the taking lens, There is also known a multi-screen photographing device that photographs the same subject from different viewpoints and divides the same film screen into two or four to form two or four images adjacent to each other.

FIG. 4 is an explanatory diagram showing the principle of a method of shooting two images of the same subject adjacently on the same film screen using the latter multi-screen shooting device, and is a front view of the shooting lens L of the camera. The multi-screen image capturing apparatus 10 mounted on the main body 1 includes a mirror pair 2 including mirrors 2A and 2B that are symmetrically opposed to each other with respect to the optical axis A of the image capturing lens L, and a mirror pair 3 including mirrors 3A and 3B. A cover 5 having a dustproof glass 4 and openings 5a and 5b for holding the dustproof glass 4 is disposed on the front surface, and a dustproof filter 9 is provided on the rear surface.

Light rays from the subject 6 on the optical axis A pass through the openings 5 a and 5 b and the dustproof glass 4 and are reflected by the left and right mirror pairs 2 and 3, respectively, and are taken by the taking lens L to form the same film screen 7. Images 8A and 8B are formed on the upper surface. Since these images 8A and 8B have parallax when the same object is viewed from two viewpoints separated by a predetermined distance to the left and right, stereoscopic vision is obtained when viewing the images through a similar mirror system. It is possible and is also used as a stereo adapter for general cameras.

When the above-mentioned multi-screen photographing device is attached to a general camera, the photographing lens angle of view becomes almost half, so that a camera other than a single-lens reflex camera requires a separate finder for determining the photographing field of view. Become. This viewfinder can be easily installed in the space of the triangular pyramid formed in front of the mirrors 2B and 3B, but in the case of a single-lens reflex camera, the field of view is shown on the unique viewfinder surface. This is convenient because it is not necessary to separately provide a dedicated finder.

In this way, when a plurality of images are photographed adjacently on the same film screen, as a matter of course, when the photographed film is requested to be stretched to E-size or L-size. , It is possible to obtain multiple images on the same print screen, and also on the robot side, by stretching this device and mounting it on the front surface of the lens, it is possible to obtain multiple prints with one exposure, which is extremely economical. It is also a target.

A multi-screen image taking apparatus for four shots capable of simultaneously taking four images on the same film screen is a pair of left and right mirrors 2 of the multi-screen image taking apparatus for two shots shown in FIG. The 3 mirrors 2A and 3A are further divided into two, the installation angles around the vertical axis of each mirror are unchanged, and the installation angles around the horizontal axis are made different, and four pieces are provided on the cover 5 correspondingly. The opening is provided.

[0010]

[Problems to be solved by the device]

 However, in a multi-screen image capturing apparatus which can be mounted on such a general camera to form two or four images on the same film screen, a plurality of images are always captured by one image capturing. Therefore, it was not possible to take one photo each with different poses and facial expressions on the same film.

Further, when a strong light beam from an illumination light source outside the lens field angle passes through the opening and enters the inside, extremely complicated reflection occurs in each mirror pair, and flare and ghost are likely to occur. There was also a problem, and there was also a problem in that various optical elements in the opening were easily soiled by hands or the like.

The present invention has been made in view of the above points, and provides an image capturing apparatus in a multi-screen image capturing apparatus capable of forming a plurality of images individually or simultaneously on the same film screen as needed. To do.

[0013]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention has at least two mirror pairs mounted on the front surface of a photographing lens of a camera and symmetrically opposed to each other in the horizontal direction with respect to the optical axis of the photographing lens, and corresponding to these mirror pairs. A multi-screen shooting device that has an opening for incident light rays formed on the front surface of the device and can simultaneously shoot the same subject on the same film screen adjacent to each other at the same time from different viewpoints at predetermined intervals. Shooting in a multi-screen shooting device, which is a sorting device and is provided on both sides of the front surface of the device with a light-shielding frame that can be rotated between a position that shields the opening on each side and a position that opens the opening. A dividing device is provided. Further, in the above-described image capturing apparatus, it is preferable that the light-shielding frame at the position where the opening is opened is substantially in contact with the photographing light beam.

In addition, in a multi-screen image capturing apparatus similar to the above, it is possible to horizontally slide the front surface of the apparatus, and by sliding, a position for shielding the opening portion and a position for opening the opening portion are provided. We also provide a separate shooting device in a multi-screen shooting device that is provided with a light-shielding frame that can be displaced.

[0015]

[Action]

 By configuring the image capturing device in the multi-screen image capturing apparatus according to the present invention as described above, a rotatable light shielding frame is provided on both sides of the front surface of the apparatus, and an arbitrary light shielding frame has an opening corresponding to it. When you shoot with the opening position and other light-shielding frames corresponding to the positions that shield the light, a subject image is formed at the corresponding position on the film screen by the light rays reflected by the mirror pair corresponding to the opened opening. be able to.

Next, by opening the light-shielding frame that was in the light-shielded state and shielding the light-shielding frame that was in the open state for shooting, another subject image can be formed at another position on the same film screen. You can In this way, different images can be taken on the same film screen. If all the light-shielding frames are opened, the same subject image can be simultaneously displayed on the same film screen as in the conventional case.

In any case, the light-shielding frame at the open position serves as a lens hood that prevents harmful rays from outside the angle of view of the photographing lens from entering the opened opening and reduces the occurrence of flare and ghost. Have an effect. Also, by closing all the light-shielding frames when carrying or storing, it is possible to prevent the optical elements in the multi-screen image capturing device from being soiled.

On the other hand, in the case where a light-shielding frame that can slide on the front surface of the device is provided, by displacing the light-shielding frame to one side, one opening is shielded from light and the other opening is opened, and the light-shielding frame is opened in the middle. By setting to the position, all the openings are opened at the same time, and various types of photography similar to the former are possible.

[0019]

【Example】

 Hereinafter, an embodiment of the present invention will be specifically described with reference to the drawings, in which portions corresponding to FIG. 4 are denoted by the same reference numerals. FIG. 1 is a plan view showing an embodiment of the present invention, and FIG. 2 is a configuration diagram showing an example of a multi-screen image taking apparatus embodying the present invention.

First, with reference to FIG. 2, a schematic configuration of a multi-screen photographing apparatus in which the present invention should be implemented will be described. This multi-screen photographing device 10 includes mirrors 2A and 3A fixed at an angle θ of less than 45 degrees with respect to the optical axis A of the photographing lens L, and 45 with respect to the optical axis A facing the mirrors 2A and 3A. The mirrors 2B and 3B are fixed at an angle of °, and the mirrors 2A and 2B and the mirrors 3A and 3B form two mirror pairs 2 and 3, respectively. The angle θ formed between the mirrors 2A and 3A and the optical axis A varies depending on the taking lens having a predetermined focal length and the subject distance at which a desired size image can be obtained on the film surface by the taking lens. However, the angle θ is set closer to 45 degrees as the subject distance increases.

A dustproof glass 4 is held by a cover 5 on the front surface of the main body 1 so as to be orthogonal to the optical axis A, and an opening is formed in front of the mirrors 2A, 3A of the cover 5 for allowing light rays from a subject to enter. Parts 5a and 5b are provided respectively, and a lens mounting mount 1a that can be fixed to the front surface (not shown) of the lens barrel of the taking lens L 1 is integrated on the rear surface of the main body 1, and a dustproof filter 9 is provided inside thereof. I have it.

Next, as shown in FIG. 1, shafts 11 are planted on both upper and lower sides of the sleeve 5c of the front cover 5 of the multi-screen photographing apparatus 10 having the above-described structure, respectively, The base portions of the sleeve portions 12a, 13a of the pair of U-shaped light-shielding frames 12, 13 are slidably mounted respectively.

Then, springs 18 and 19 are attached between the pins 14 and 15 that are planted on the middle side of the shaft 11 of the sleeve portions 12 a and 13 a and the pins 16 and 17 that are planted on the upper surface of the main body 1, The shading frames 12 and 13 can be biased in both directions of the open position shown by the solid line and the shading position shown by the phantom line in FIG. The light-shielding portions 12b and 13b of the light-shielding frames 12 and 13 in the open position are brought into contact with the respective photographing light fluxes (not shown) so that the light-shielding portions 12b and 13b are in contact with each other and held at their positions.

This embodiment is configured as described above, and when the light-shielding frames 12 and 13 are in the state shown by the solid lines in FIG. 1, both the openings 5a and 5b are in the open state and the taking lens L Thus, two images can be simultaneously formed adjacent to each other on the same film screen. At this time, the light-shielding frames 12 and 13 in the open position prevent harmful rays from the left and right sides from entering the inside of the dust-proof glass 4, and can drastically reduce flares and ghosts that are likely to occur in the semi-backlit state.

Further, from this state, when the right-side light-shielding frame 13 is rotated in the light-shielding direction against the biasing force of the spring 19, the light-shielding frame 13 is removed after the center line of the spring 19 passes through the shaft 11. When it is biased in the light-shielding direction, and as shown by the phantom line in FIG. 1, the inner surface of the light-shielding portion 13b is held in contact with the front surface of the cover 5 to shield the opening 5b from light, and the camera side is released. Only the light rays that have passed through the opening 5a expose the right half of the film screen.

After the first exposure is completed, the right-side light-shielding frame 13 is set to the open position, and the left-side light-shielding frame 12 is set to the light-shielding position. When the second release operation is performed, only the light beam that has passed through the opening 5b is used. The left half of the film screen is exposed, and different images can be taken by dividing the same film screen in two. Also at this time, the light shielding frame in the open position can block harmful rays from the side.

Further, when both the left and right light-shielding frames 12 and 13 are set to the light-shielding positions, both the left and right openings 5a and 5b are in the light-shielding state, and are held in this state by the urging force of the springs 18 and 19. Therefore, there is no possibility that the light-shielding frames 12 and 13 will be inadvertently opened even when carried in this state, and the dust-proof glass surface can be prevented from being soiled by hands or the like.

Next, FIG. 3 is a perspective view showing another embodiment of the present invention. In this embodiment, a large opening 25c is formed on the front surface of the cover 25 of the multi-screen photographing device 20, a slit S is provided between the cover 25 and the dustproof glass 4, and a convex or concave shape is formed in the slit S. The light-shielding frame 22 in the form of a flat plate integrally including the operating portion 22a of FIG. In this embodiment, it is preferable that a click spring made of a leaf spring or the like is provided in the slit S, a click groove is provided on the end surface of the light shielding frame 22, and the light shielding frame 22 is clicked at least at the intermediate position shown in the drawing. The other configurations are the same as those in FIGS. 1 and 2.

In the illustrated state in which the light-shielding frame 22 is in the middle, the opening portions 25a and 25b corresponding to the pair of mirror pairs 2 and 3 (FIG. 2) are formed, and the camera side is released in this state. It is possible to form two adjacent images at the same time on the same film screen.

Further, by sliding the light shielding frame 22 to the left from this state, the opening 25a is shielded from light while the opening 25a is kept open, and sliding to the right opens the opening 25b. The opening 25a is opened and shielded from light. As a result, different images can be formed on the left and right sides of the same film screen as in the previous embodiment. According to this embodiment, the shading frame 22 does not have a function of blocking harmful rays outside the angle of view of the lens, but the configuration is remarkably simple and can be supplied at low cost. Furthermore, in this embodiment, if a plurality of light-shielding frames that can slide independently of each other such as shoji screens or fusuma sliding doors are provided, the dust-proof glass 4 can be protected during carrying or storage as in the previous embodiment. The surface can be protected to prevent fouling.

In each of the above embodiments, the case where the present invention is applied to a two-shot multi-screen shooting device has been described, but a four-shot multi-screen shooting device provided with four mirror pairs is described. However, the present invention can be easily implemented by providing four sets of light-shielding frames accordingly. Further, although a plurality of mirror pairs are used in each of the above-mentioned embodiments, it goes without saying that these may be appropriately replaced with prisms.

[0032]

[Effect of device]

 As described above, in the multi-screen photographing device according to the present invention, which is provided with the light-shielding frames which can be opened and closed on both sides of the front face of the device, the arbitrary light-shielding frame is opened and the other light-shielding frames are shielded. By shooting at the position, the subject image can be formed at the film screen position corresponding to the opening on the opening side, and thus it is possible to freely imprint a plurality of different images on the same film screen.

If the light-shielding frame in the open position is almost in contact with the photographing light flux, harmful rays from outside the photographing lens angle of view can enter the multi-screen photographing device through the opened opening. It is possible to effectively prevent the occurrence of flare and ghost.

Further, in the case where a slidable light-shielding frame is provided on the front surface of the device, by displacing the light-shielding frame to one side, one opening is shielded from light and the other opening is opened, and the light-shielding frame is opened in the middle. By setting to the position, all the openings are opened, so it is possible to separately shoot and simultaneously shoot as needed with a very simple structure.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is a block diagram illustrating a multi-screen image capturing apparatus embodying the present invention.

FIG. 3 is a perspective view showing another embodiment of the present invention.

FIG. 4 is an explanatory diagram showing the principle of a multi-screen image capturing device.

[Explanation of symbols]

 1: Main body 2, 3: Mirror pair 4: Dust-proof glass 2, 25; Cover 5a, 5b, 25a, 25b: Opening 10, 20: Multi-screen photographing device 12, 13, 22: Shading frame L: Photographing lens A: optical axis

Claims (3)

[Scope of utility model registration request] 1. At least two mirror pairs mounted on the front surface of a photographing lens of a camera and symmetrically facing each other in the horizontal direction with respect to the optical axis of the photographing lens, and formed on the front surface of the apparatus corresponding to these mirror pairs. An image capturing device in a multi-screen image capturing device, which has an opening for incident light and is capable of simultaneously capturing the same subject adjacent to each other on the same film screen from different viewpoints at predetermined intervals, A shooting and sorting device in a multi-screen shooting device, characterized in that a light-shielding frame is provided on both sides of the front face so as to be rotatable between a position where the opening is shielded and a position where the opening is opened on each side. 2. An image capturing apparatus in a multi-screen image capturing apparatus according to claim 1, wherein the light-shielding frame located at the position where the opening is opened is substantially in contact with the image capturing light beam. 3. At least two mirror pairs mounted on the front surface of a photographing lens of a camera and symmetrically opposed to each other in the horizontal direction with respect to the optical axis of the photographing lens, and formed on the front surface of the apparatus corresponding to these mirror pairs. An image capturing device in a multi-screen image capturing device, which has an opening for incident light and is capable of simultaneously capturing the same subject adjacent to each other on the same film screen from different viewpoints at predetermined intervals, An image capturing apparatus in a multi-screen image capturing apparatus, characterized in that a front surface is slidable in a horizontal direction and a light shielding frame is provided which can be displaced between a position for shielding the opening and a position for opening the opening by sliding. .