JPH0449617Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention is used when all frames recorded on a single negative film are printed in a reduced size and used to create an index photo to be used as an index of the negative film. It's about masks.

[Conventional technology]

At the photofinishing laboratory, the developed negative film and enlarged photographs of each of these frames are placed in a bag and handed to the user. When JIS-135 type negative film is used, the full-size negative film is divided into six frame negative pieces, and each negative piece is inserted into a tunnel-shaped negative sheath with one or both ends open. .

By the way, rather than immediately organizing the completed printed photos in an album etc., general users
It is often stored in a bag. Therefore, when several rolls of negative film are accumulated or when several rolls of negative film are printed at the same time, it becomes difficult to tell which photograph is on which negative film. Or, it becomes impossible to correspond between negative film and printed photographs. To avoid this situation, there is a method of contact printing negative pieces, but this contact printing has the drawback that each negative piece is created separately, making it difficult to handle and making it impossible to see all the frames at a glance.

In view of these circumstances, it has been proposed to use a negative bag in which negative sheaths containing individual negative pieces are connected in a sheet-like manner, and to use index photographs in which the negative pieces are printed in a reduced size with the same arrangement as they are. This index photo is very convenient because the print photos from a single negative film are arranged and printed in a matrix on a single sheet.

[Problem that the invention attempts to solve]

By the way, in the apparatus that has been used so far to create the above-mentioned index photographs, the negative bag is placed between a flat mask in which a horizontally long opening corresponding to the negative piece is formed and a transparent flat plate. Light is irradiated from one side of the paper to form an image on the photographic paper. However, such a device has the disadvantage that the negative pieces may shift within their respective negative sheaths, making it necessary to align each negative piece with the opening of the mask, which is very troublesome.

The present invention has been made to solve these drawbacks, and an object of the present invention is to provide a mask for creating index photographs that allows easy positioning of individual negative pieces when creating index photographs.

[Means for solving problems]

In order to achieve the above object, the present invention forms a translucent base plate with a plurality of rows of protruding horizontally elongated receiving surfaces corresponding to the negative pieces, and the negative pieces are positioned on the receiving surfaces. For this reason, a groove is formed between the receiving surfaces, and a cover member that presses the negative bag from the upper surface is provided with a protruding edge so as to enter the groove. This protruding edge presses the connecting portion between the negative sheaths housing the negative pieces, and presses this portion toward the groove. This results in
The negative piece in each negative sheath is positioned on the receiving surface, and a horizontally long opening formed in the cover member matches the upper surface of the negative piece.
Then, by illuminating each of the negative pieces at the same time from the bottom surface of the base plate, positive images from all frames of the negative pieces are printed on one sheet through the aperture and the imaging lens with the reduction magnification.

Hereinafter, one embodiment of the present invention will be described with reference to the accompanying drawings.

〔Example〕

FIG. 4 shows an example of an index photograph. In the index photo 1, each frame recorded on one negative film is printed in a reduced size as a positive image 2. Each of these positive images 2 is printed in the same arrangement as when the negative pieces are inserted into the negative sheath. A frame number 3 is recorded below each positive image 2, and is used as an order when organizing or specifying a frame number when reprinting. The size of index photo 1 is determined to be an appropriate size considering storage etc., but in this example, it is set to 178.
Printed on x127mm photographic paper at a reduction ratio of 1/2. Although only the image inside the perforation is printed, the entire negative film including the perforation can also be printed. In this case, since the frame number recorded on the negative film is also printed, this can be used as a substitute for frame number 3.

In order to record the frame number 3, a method such as printing the positive image 2 and then imprinting digital numbers using a light emitting diode or the like is adopted. In the illustrated embodiment, the object is a 24-shot JIS-135 type negative film divided into every 6 frames, and a positive image 1 of 24 frames and a service frame is printed.

FIG. 1 shows the mask used when creating the index photo 1. As shown in FIG. The mask 5 includes a cover 8 and a base plate 10 made of translucent acrylic or the like. The cover 8 is made of synthetic rubber, for example, and has flexibility and light-shielding properties, and has a horizontally long opening 7 corresponding to the shape of the negative piece 6 . Moreover, on the base plate 10,
A receiving portion 11 having a trapezoidal cross section is formed so as to face the opening 7 . The upper surface 11a of this receiving portion 11 is a flat surface, and is used as a receiving surface for the negative piece 6 as described later.

As is well known, the negative bag 12 is made by overlapping two transparent or translucent plastic sheets and heat-sealing them at regular intervals that are slightly larger than the width of the negative pieces 6. By this heat-sealing, for example, seven pieces can be stored. A negative sheath 13 is formed in sections. Then, a negative piece 6 obtained by dividing one negative film into every 6 frames is inserted into each negative sheath 13, and in the case of 24 shots, including the service frame, for example, 4 + 2 frames. A negative piece 6 is inserted.

A groove 15 is formed between the receiving parts 11 formed on the base plate 10, and a protruding edge 16 is provided on the cover 8 in correspondence with the groove 15. A long holding piece 19 is fixed to the rear side of the protruding edge 16. The protruding edge 16 is tapered and narrow on its inner side. Furthermore, a light shielding plate 18 is slidably attached to the upper surface of the cover 8, as shown in FIG. By sliding this light shielding plate 18, the opening 7 can be closed as appropriate.

Negative sheath 13 into which negative piece 6 is inserted
Place the negative bag 12 so that it is above the receiving surface 11a.
When the negative bag 13 is placed on the base plate 10 and the cover 8 is placed on it, the holding piece 19 first places the back side of the negative bag 13 on the base plate 1.
0 and fix it. As the cover 8 is further put on, the protruding edge 16 enters into the groove 15 while pressing the portion where the negative piece 6 is not inserted, that is, the connecting portion between the negative sheaths 13. Since the protruding edge 16 enters the groove 15 from the narrow part on the back side, even if the negative piece 6 deviates from the receiving surface 11a to some extent, it can be corrected.

When the cover 8 is put on in this manner, the state shown in FIG. 2 is obtained. In addition, in FIG. 2, the base plate 10, negative bag 12, and cover 8 are shown in order to avoid complication of the drawing.
are shown separated from each other. The part of the negative bag 12 that does not contain the negative piece 6 is pushed into the groove 15 by the protruding edge 16, so that the negative sheath 13 and the negative piece 6 stored therein are placed on the receiving surface 11a. is pressed against. In addition, since the protruding edge 16 restricts the side edge of the negative piece 6,
The negative piece 6 will not shift laterally and will be positioned at a constant position.

After positioning the negative piece 6, the light shielding plate 1
8 to close the opening 7 corresponding to the part where the negative piece 6 is not inserted. Also,
In the index photograph 1 shown in FIG. 4, the negative piece 6 is partially placed in the fifth row, so the light shielding plate 18 is closed to the part corresponding to that position.
Then, when the rod-shaped lamp 20 arranged below the base plate 10 is turned on, the base plate 1
The bottom surface of 0 is illuminated.

Between the cover 8 and the photographic paper roll 22, an imaging lens system 24 having a built-in shutter 23 and having a reduction magnification of 1/2 is arranged. And Shyatsuta 24
When the color correction filters 25, 2 are opened for a certain period of time, the color correction filters 25, 2
By means of the illumination light from the lamp 20 via the lamp 6 , the entire frame image of the negative sheet 6 is printed in a reduced size on the photographic paper roll 22 along the optical axis 27 . As mentioned above, the negative piece 6 is attached to the receiving surface 1
By being pressed against 1a, positioning in the optical axis 27 direction is achieved, and at the same time, the protruding edge 16
Since the mask 5 is positioned also in the in-plane direction by the grooves 15 and 15, if the entire mask 5 is correctly positioned with respect to the imaging lens system 24, a good printed image 2 can always be obtained. . After this printing process is performed, the photographic paper roll 22 is fed a certain length and the printing process is performed on the next negative bag. After sequentially printing in this way,
When the photographic paper roll 22 is cut into predetermined lengths, index photographs 1 as shown in FIG. 4 are obtained.

Note that the translucency of the base plate 10 is not necessarily limited to being transparent, but may be one that scatters the illumination light from the lamp 20. Furthermore, when the negative bag 12 is semitransparent, the negative bag 12 also functions as a differential user, which is effective in uniformly illuminating the negative piece 6. In addition, in order to print frame number 3 on index photo 1, a transparent window in the shape of a frame number is provided on cover 8,
A light emitting diode for burning the frame number may be embedded in the upper surface of the cover 8.

[Effect of idea]

As explained above, when using the mask for creating index photographs of the present invention, the negative piece inserted into the negative sheath can be exposed to light by simply sandwiching the negative bag with the negative sheath connected between the base plate and the cover member. Since it is positioned at a constant position not only in the axial direction but also in the in-plane direction of the negative piece, the printing process of index photographs can be greatly speeded up.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the present invention. FIG. 2 is a sectional view showing the entire system when printing index photographs using the present invention. FIG. 3 is a perspective view of essential parts of a light shielding plate used in an embodiment of the present invention. FIG. 4 is a plan view showing an index photograph created according to the present invention. 1... Index photo, 5... Mask, 6...
...Negative piece, 7...Opening, 8...Cover, 10
... base plate, 11 ... receiving part, 11a ... receiving surface,
12... Negative bag, 13... Negative sheath, 15...
Concave groove, 16... Projecting edge, 18... Shielding plate, 20...
...Lamp, 22...Photographic paper roll, 24...Imaging lens.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In a mask for index photography which holds a negative bag in which a plurality of negative sheaths each storing a horizontally long negative piece are arranged in tandem, and holds the negative piece in alignment with a horizontally long opening, the negative piece A plurality of rows of horizontally long receiving surfaces corresponding to the receiving surface are formed at a constant pitch, a translucent base plate with grooves formed between the receiving surfaces, and a horizontally long opening facing the receiving surface is formed. and a light-shielding cover member having a protruding edge formed opposite to the groove between the openings, and when a negative bag is held between the base plate and the cover member,
A mask for producing index photographs, wherein the negative piece is positioned on the receiving surface by the projecting edge entering the groove while pressing the connecting portion of the negative sheath. (2) The mask for creating index photographs according to claim 1, wherein the cover member includes a slidable shielding plate for shielding the opening. (3) The mask for creating an index photo according to claim 1, wherein one end of the projecting edge is tapered and narrow.