JPS6331052Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Industrial field of application] This invention is for creating slides in which the film surface is divided into four parts in the shape of a rice field and four different images are imprinted on each part. Regarding equipment.

[Conventional technology]

BACKGROUND ART Conventionally, at academic conferences, various lectures, etc., slide projections are often used to assist explanations.

In such cases, in order to shorten the explanation time and facilitate comparative consideration of mutually related items,
It is necessary to be able to divide the film surface into multiple parts and imprint different images on each part, to be able to project multiple images at once, and to be able to project each image as large as possible.

In view of this, Hondekajin has already developed a slide holder that facilitates the creation of slides by arranging multiple slide screens in a zigzag pattern in a predetermined direction. 51389
No.).

First, a method of creating a slide using the slide holder according to the prior application will be briefly explained with reference to FIGS. 3 and 4.

FIG. 3 shows a slide holder 4 arranged in a zigzag pattern with the first, second, third, and fourth slide frames 3A, 3B, 3C, and 3D. It is attached so that it can slide freely in the direction.

Each of the slide frames 3A to 3D corresponds to the first, second, third, and fourth slide screens 3a, 3b, and 3, respectively.
c, 3d, and the inner sides 3a ₁ , 3b ₁ , 3c ₁ , 3d ₁ of each slide screen 3a to 3d are connected to the slide holder 4.
They are arranged in the recesses 4a, 4b, 4c, and 4d of the slide holder 4 so as to coincide with the center line X1 along the moving direction X of the slide holder ₄ .

Here, the photographing magnification of the photographing device for photographing these slide screens 3a to 3d is set to approximately 1/2, and the optical axis of the photographing lens is placed directly above one corner 3ac of the first slide screen 3a. When the first slide screen 3a is photographed, as shown in FIG. 4, a first image is formed in a first section 61, which is obtained by dividing the film screen 6 into four equal parts.

After photographing the first screen 3a, move the slide holder 4 in the direction of arrow The second section is located in section 62 of
image is formed.

Similarly, if one corner 3cc, 3dc of the third and fourth screens 3c, 3d is positioned on the optical axis of the photographic lens and photographed, the third and fourth images will be captured in the third and fourth sections 63, 64. A composite slide screen in which the required four-split screen is printed is obtained.

[Problem that the invention attempts to solve]

However, in the slide creation method using such a slide holder, although it is possible to imprint four slide screens on one slide screen, only the necessary parts of each slide screen can be imprinted in each section. I couldn't take a full picture.

The object of this invention is to provide a slide preparation device that can solve these problems.

[Means for solving problems]

Therefore, in the slide creation device according to this invention, four slide screens arranged in a zigzag pattern on both sides of the center line are moved in the direction of the center line, and the optical axis is perpendicular to the slide screen. Using a photographing device equipped with a zoom lens that intersects with the center line, all or part of each slide screen is sequentially imaged at the required magnification onto different parts of the same film surface divided into four equal parts in the shape of a square. A mask substrate, which is a slide creation device, and includes four openings corresponding to the four slide screens, two on each side of the centerline, and whose inner edges coincide with the centerline; The openings on the other two edge sides of the two openings, which are slidably attached to the mask substrate and are on the same side with respect to the center line, except for the edge on the side closer to each other and the edge that coincides with the center line. can be integrated into the mask substrate with four mask plates that shield the opening while maintaining the vertical and horizontal proportional relationship, and from the position corresponding to the opening of this mask substrate, the mask of this opening can be A slide holder is provided with a slide holding frame that can be moved in any direction within the range divided by the two edges on the side that is shielded by the plate, and the slide holder is moved in the direction of the center line to open the opening of the mask substrate. A slide holder stopping means is provided for stopping the movement of the zoom lens at a position where the corner formed by the two edges on the non-shielded side coincides with the optical axis of the zoom lens.

[Effect]

With the above configuration, the slide holder is stopped at the first stop position by the slide holder stopping means, and after the four slide screens are inserted into each slide holding frame, each opening is fully opened. The mask substrate is attached integrally, and each slide holding frame is moved so that the portion of each slide screen to be imprinted by illumination from the opposite side of the photographing device is located on the unshielded corner side of the mask substrate opening.

Next, move the mask board to leave the part you want to imprint on the slide screen and cover off the unnecessary part, then change the magnification of the zoom lens and place the desired part on the film surface in the shape of a square. Photography is performed so that the image is focused on the divided parts.

When the first screen has been photographed, the slide holder is moved in the direction of the center line and the same procedure is followed to sequentially photograph, and this is repeated four times in total.

At this time, the optical axis of the zoom lens is perpendicular to each slide screen, and the optical axis of the zoom lens is perpendicular to each slide screen.
This corner corresponds to the center of the film surface during shooting, so no matter how you change the magnification of the zoom lens, its position does not change, and the image surface is located at the center of the film surface. It is enlarged and reduced radially from the center, and the film surface is 4
A desired part of each slide screen is imprinted on each equally divided part.

Further, the mask plate makes clear the divisions of each screen to be printed on the film, and also blocks extra light rays to prevent the occurrence of ghosts and deterioration of contrast due to diffuse reflection.

〔Example〕

Hereinafter, embodiments of this invention will be described with reference to FIGS. 1 and 2 of the accompanying drawings.

FIG. 1 shows an embodiment of this invention.

This device includes a mask substrate 1 and a mask substrate 1.
The slide holder 2 is integrally fixed at intervals parallel to the slide holder 2.

The mask substrate 1 has a rectangular shape with three bonding holes 1a, and on both sides of the longitudinal center line _X1 ,
Four openings 11, 12, 13, and 14 are provided corresponding to the slide screen to be photographed, and among these, openings 11, 14 and openings 12, 13 are on opposite sides with respect to the center line _X1. , its inner edge 11
a, 12a, 13a, 14a are center lines respectively
Matches X ₁ .

These edges 11a to 14a and the edges 11b, 14 on the sides adjacent to each other of the two openings 11, 14 and 12, 13 on the same side with respect to the center line _X1
b and the other two edges 11c and 1 excluding 12b and 13b
1d, 12c, 12d, 13c, 13d, 14
Three elongated holes 15a and 16 are provided on the c and 14d sides.
a, 17a, 18a and shafts 19a, 19b, 19
c, 19d to form an "L" shaped mask plate 1.
5, 16, 17, 18 are provided so as to be movable within a predetermined range in the diagonal direction of the openings 11 to 14, and the inner sides 15c, 15d, 16c, 16d, 17c,
17d, 18c, 18d are the edges 11c, 11d, 12c, 1 of the openings 11 to 14 in the illustrated open state.
2d, 13c, 13d, 14c, and 14d, respectively, and by moving the mask plates 15 to 18 in the diagonal direction of the openings 11 to 14, respectively, the openings 11 to 14 are adjusted to the vertical and horizontal proportional relationships of the openings. It is designed to protect and shield.

On the other hand, the slide holder 2 has three parts on the mask substrate 1.
Three stepped connecting pins 2 corresponding to the connecting holes 1a
5 is implanted and has almost the same shape as the mask substrate 1, and is integrally connected in parallel to this mask substrate 1 with its center line _X2 aligned with the center line _X1 of the mask substrate can be done.

The slide holder 2 has fixed frames 21a, 22a, 23a, and 24a whose lower surfaces open through openings (not shown) provided in the slide holder 2 in correspondence with the openings 11 to 14 of the mask substrate 1. These fixed frames 21a to 24a have intermediate frames 21b, 22b, 23b, and 24b that can slide in a direction perpendicular to the _center line center line
Slide holding frames 21, 22 that can slide in _two directions
23 and 24 are provided, and slide holding frames 21 to 24 are provided.
By inserting the required slide frame into 24 and pressing it from the side, the slide frame is moved from the position corresponding to the mask substrate openings 11 to 14, respectively, to the two edges 11c and 11 on the side that are shielded by the mask plates 15 to 18.
d, 12c, 12d, 13c, 13d, 14c,
It can be moved in any direction within the range delimited by 14d.

Note that the movement ranges of the slide holding frames 21 to 24 and the mask plates 11 to 14 are determined in consideration of the zoom ratio of a zoom lens attached to a photographing device that photographs each slide screen.

The slide holder 2 is slidably mounted on a guide member (not shown) and can be moved along with the mask substrate 1 in the direction of arrow X parallel to the center lines X ₁ and X ₂ . The four click grooves 2a, 2b, 2c, and 2d are click-connected to click balls (not shown) provided on the fixed side, thereby forming a slide holder stopping means.

Here, the click grooves 2a to 2d correspond to each opening 1 of the mask substrate 1 integrated with the slide holder 2.
Two edges 11a, 11b, 12a, 12b on the side not shielded by mask plates 15-18 of 1-14,
Each corner 11 of 13a, 13b, 14a, 14b
When the lenses e, 12e, 13e, and 14e reach the predetermined positions, the clinic balls are engaged and the slide holder 2 is stopped, and the single-lens reflex camera fixed above the mask substrate 1 is placed at these stopping positions. The optical axis of a zoom lens of a photographing device such as a camera passes through the corners 11e to 14e.

Next, the operation of the embodiment constructed as described above will be explained with reference to FIG. 2 as well.

The slide holder 2 is moved in the direction of arrow X', the click groove 2a is engaged with a click ball (not shown), and it is stopped at the first position to be imprinted on each of the slide holding frames 21 to 24. Insert four slide frames.

When the mask substrate 1 is integrally combined in this state, the optical axis of a zoom lens of a photographing device (not shown) fixedly provided above the mask substrate 1 will be in a position passing through one corner 11e of the mask substrate opening 11, and If the zoom lens is focused on the slide screen position, the image of the first slide screen masked by the aperture 11 will have its apex at the center 60 of the film surface 6, as shown in FIG. Compartment lines 6a, 6b
The image is formed within the range delimited by .

Therefore, the first
The slide screen is illuminated, the slide holding frame 21 and the intermediate frame 21b are moved, and one side of the region to be imprinted is separated by the two edges 11a and 11b of the mask substrate opening 11 on the unshielded side. After that, move the mask plate 15 so that the other side of the area to be imaged is separated by the inner sides 15c and 15d of the mask plate 15, and turn the zoom lens while looking at the viewfinder surface of the photographing device. By changing the magnification, the inner side 15c of the mask plate 15,
The edge of the slide screen divided by 15d is made to coincide with two sides 61c and 61d of a first section 61 which divides the film surface 6 into four.

At this time, since the optical axis of the zoom lens of the photographing device is located at a position passing through one corner 11e of the mask substrate opening 11, the two edges 11a of the opening 11 on the unshielded side,
The edges of the slide screen divided by 11b do not deviate from the two sides 6a and 6b of the first section 61 no matter how the zoom lens is changed.

In this manner, when the first photographing is performed by the photographing device, the portion of the first slide screen to be imprinted on the first section 61 of the film surface 6 can be photographed.

When the first photographing is completed, the slide holder 2 is moved in the direction of the arrow X and stopped at the stop position by the click groove 2b, so that the optical axis of the zoom lens passes through one corner 12e of the second opening 12. Be in position.

In this state, the image on the second slide screen is the partition line 6
Since the image is formed within the range divided by a and 6d, when a second photograph is taken using the same operation, the film 6
A required part of the second slide screen can be imprinted on the second section 62 of
After forming an image within the range divided by sections 6b and 6c, the desired region is selected and the third and fourth sections 6 are formed.
3 and 64, the desired parts of the third and fourth slide screens can be imprinted, thereby creating a composite slide screen.

In the above embodiment, openings 11 and 14 are provided on _one side of the center line Although frames 21 to 24 were provided, openings 11 and 13 were provided on _one side of the center line
Openings 12 and 14 may be provided on the other side, and slide holding frames 21 to 24 may be provided correspondingly.

[Effect of idea]

As described above, the slide preparation device according to this invention includes a mask substrate having openings arranged in a zigzag pattern on both sides along the center line, and four slides corresponding to these openings to be imprinted. A slide holder having a slide holding frame for holding two slide frames can be integrated with the slide holder, and the opening of the mask substrate can be shielded by maintaining the vertical and horizontal proportional relationship of the opening. Since it is movable within a predetermined range, by fixing the photographing device with a zoom lens at a predetermined position above the mask substrate, the desired part of each slide screen can be freely imaged on the film surface of the photographing device while changing the magnification. It is possible to easily take a picture of a composite slide screen in the shape of a "Ta" character, with no wasted space, and the imprinted screen has neat sections and no harmful reflections. There is no deterioration of the screen due to light, and the projection effect of the composite slide can be made extremely good.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing an embodiment of this invention, Fig. 2 is an explanatory drawing showing a film screen taken using this device, Fig. 3 is an explanatory drawing showing a conventional slide holder, and Fig. 4 is an explanatory drawing showing a conventional slide holder. The figure is an explanatory diagram showing a film screen taken using a conventional slide holder. 1...mask substrate, 2...slide holder, 1
1 to 14...Apertures in mask substrate, 15 to 18...
...Mask plate, 21-24... Slide holding frame of slide holder, X ₁ , X ₂ ... Center line.

Claims (1)

[Scope of utility model registration request] Photographing using a zoom lens in which four slide screens arranged in a zigzag pattern on both sides of a center line are moved in the direction of the center line, and the optical axis is orthogonal to each of the slide screens and intersects with the center line. A device for creating a slide in which the device sequentially imprints all or a part of each slide screen at a required magnification onto different portions of the same film surface divided into four equal parts in the shape of a “rice field”; A mask substrate is provided with four openings, two on each side of the center line corresponding to the two slide screens, and whose inner edges coincide with the center line, and a mask substrate is slidably attached to the mask substrate. , of the two openings on the same side with respect to the center line, the openings on the other two edge sides, excluding the edges on the side adjacent to each other and the edge coinciding with the center line, are determined based on the vertical and horizontal proportional relationships of the openings. four mask plates that can be integrated into the mask substrate, and that extend from the position corresponding to the opening of the mask substrate to the two edges of the opening that are shielded by the mask plate; a slide holder equipped with a slide holding frame that can be moved in any direction within a range demarcated by , and a slide holder that is moved in the direction of the center line and that is moved by two edges on the unshielded side of the mask substrate opening. 1. A slide making device comprising slide holder stopping means for stopping movement of the slide holder at a position where the formed corner coincides with the optical axis of the zoom lens.