JPH0440197Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

This invention relates to the improvement of photographic roll film.
In particular, the present invention relates to a roll film that has been improved in specifying photographed image frames and adding frame symbols indicating the photographing order.

[Conventional technology]

As shown in FIG. 5, 135 roll film has a frame symbol, usually a frame number, printed in advance on the edge area of the film to identify the photographic screen frame when viewing the developed negative. Frame symbols include numbers, letters, or a combination of numbers and letters. That is, the tip 40 of the leading tongue end 42 of the film 41
From then on, serial numbers such as 1, 2 to 24, 1,
Consecutive numbers like 2, 3 to 36 are printed at equal intervals for the number of shots that can be taken. Furthermore, before the number 1, there is an area that may be photographed depending on how the film is loaded in the camera, so letters such as S, K, and F are displayed in each image frame in the same way as the numbers. are printed at equal intervals. Similarly, after the final number 24 or 36, there is a place where you can take about one image frame, so a letter such as R is pre-printed in the same way as the number at a distance of one image frame from the final number. There is. In FIG. 5, these symbols shown in the edge area 43 are small and difficult to see, so they are shown enlarged as frame symbols 45 outside the film. However, due to the structure of the camera, the photographing start position is not always at the same dimensional position from the tip 40 of the leading tongue end 42 of the film, but varies considerably in size. Therefore, if you simply print consecutive numbers at intervals of one image frame as described above, the numbers or letters may be located exactly at the border of the shooting frame, making it difficult to see which frame they are in when looking at the negative. Problems may arise in which it is difficult to decide whether or not it belongs. As a countermeasure against this, a combination symbol is printed on the alphanumeric symbol as a suffix at the exact midpoint between the numbers and letters at each image frame interval. That is, the frame symbols are arranged as shown in FIG. If you do this,
For example, as shown in FIGS. 5, 6, and 7, among the consecutive image frames 50, 51, 52, and 53 of the negative film 41, the image frame 53 can be identified by specifying it as 2A, or as 3. It can also be specified by specifying it.

[Problem that the invention attempts to solve]

By the way, many cameras that use 135 roll film have a structure in which the cartridge chamber is placed on the left side and the winding chamber is placed on the right side when viewed from behind, and the film is wound from left to right for each shot.
There is also a structure in which the arrangement is reversed, that is, the cartridge chamber is placed on the right side and the winding chamber is placed on the left side, and the film is wound from right to left. When shooting with a camera with the former structure, the relationship between the frame symbol and the image frame will be in the same orientation as shown in Figure 6, and while viewing the image in an upright position, the frame symbol will naturally also be in an upright position. It can be read with . However, when photographing with a camera having the latter structure, the image frame and frame symbol are oriented in opposite directions, as shown in FIG. This is extremely inconvenient when a user orders reprints or when reading frame symbols in a laboratory. The present invention aims to improve such inconvenience in handling.

[Means to solve the problem]

This object is achieved by a photographic roll film characterized in that frame symbols identifying each captured image frame and indicating the sequence of capture are printed in an inverted relationship to each other in the marginal regions on both sides of the central image forming region of the strip-shaped photographic film.

【Example】

An embodiment of the present invention will be described with reference to FIGS. 1-A and 1-B. Similarly to FIG. 5, in FIG. 1-A, the frame symbols are enlarged to the outside of the film, as indicated by 45 and 45', in order to make them easier to see. In fact, it is burned in at the location indicated by 43, ie in the outer edge area of perforation 46. In the figure, 42 is the tongue end of the film 41, and 44 is a photographed image frame. 41', 4
1'' indicates the adjacent portion of the film 41 before it is cut into a predetermined length when it is stored in a cartridge, that is, in a long rolled state. The film is rolled up.As shown in the figure, the frame symbols 45 and 45' are imprinted in an inverted relationship with each other.The film with the frame symbols imprinted in this way is used to photograph, and the developed negative film is then exposed to the second film. Shown in Figure-A and Figure 2-B.Second
Figure A was taken using a camera that winds from left to right when viewed from the rear of the camera.
Figure -B shows an image taken using a camera that winds from right to left. In Figure 2-A, frames 50, 51, 52, 5
3 are arranged in order from right to left, and the reverse order is shown in FIG. 2-B. Frame symbol 45,4 against the screen
5' has a reverse positional relationship between the two figures, but since one of the symbols faces the same direction as the image, the conventional difficulty in viewing is eliminated. Figure 1-B shows another embodiment of the invention, in which the frame symbols 45, 45' are burned in the opposite orientation to that of Figure 1-A. That is, in FIG. 1-A, the heads of the numbers and letters are placed opposite each other, and in FIG. 1-B, the feet of the numbers and letters are placed opposite each other. Next, the burning of the frame symbol described above will be explained with reference to FIGS. 3 and 4. FIG. 3 is a schematic diagram of the frame symbol printing apparatus, and FIG. 4 is a diagram showing the arrangement relationship between the light emitting diode array of the printing apparatus and the film conveyed for frame symbol printing. The long perforated strip film 41, in which the notch portion for forming the tongue end portion 42 of the film 41 has been cut off by the notch cutter 62, passes through guide rollers 63 and 64, and then passes through the notch portion detector 68. It passes through a detector 69 that detects the perforations at the end at the notch and detects the number of subsequent perforations, passes through an exposure means 66 that prints a frame symbol, and is exposed to perforations by a sprocket wheel 65. conveyed at a steady speed by the meshing of the
The light emitting diode 62 is controlled by the light emission control device 71.
B ₁ and 62B ₂ are controlled to emit light to finish burning the frame symbol and to be wound up again. In the cartridge loading process, this wound film is cut at the notch depending on the length of 12, 24, or 36 images, wound onto a spool, and placed in a light-shielding cartridge to produce a 135-roll film. be converted into Incidentally, in the exposure means 66, light emitting diode arrays 62B ₁ and 62B ₂ are provided at right angles to the film traveling direction and corresponding to both edge areas as shown in FIG. The light emitting diode arrays 62B ₁ and 62B ₂ are a notch detector 68 and a perforation detector 6.
It is possible to selectively emit light according to a signal from the control device 71 based on a signal from the 9 encoder 70, and to form arbitrary numbers, characters, symbols, and figures. In this way, burning of the frame symbol is completed.

[Effect of the idea]

As explained above, the roll film according to the present invention uses a film having frame symbols printed on both edge areas in an inverted relationship with each other, so that the negative image and the frame symbol identifying it are always kept upright. It is now possible to check the relationship, and specifying the frame symbol by looking at the negative image is very easy, fast, and accurate.It is extremely convenient for handling, such as making orders from customers to the laboratory and work in the laboratory easy. There is an advantage to having one.

[Brief explanation of the drawing]

Figures 1-A and 1-B are diagrams showing an embodiment of the present invention, Figures 2-A and 2-B are diagrams showing the relationship between images and frame symbols in the embodiment, and Figure 3. 4 is a schematic diagram of the printing apparatus for producing the film of the present invention.
The figures show the arrangement relationship between the light emitting diode array of the printing device and the film being conveyed.
The figure is an enlarged view of a negative film taken using a conventional film with a camera that winds from left to right.
FIG. 7 is an enlarged view of a negative film taken using a conventional film with a camera that winds from right to left. 41... Roll film, 42... Tongue end, 4
3... Edge area where frame symbols are burned, 44...
...Image frame, 45, 45'...Frame symbol.

Claims (1)

[Scope of utility model registration request] A photographic roll film characterized in that frame symbols specifying each photographed image frame and indicating the photographing order are printed in advance on the edge areas on both sides of the central image forming area of the photographic film strip in an inverted relationship with each other. .