JP2694475B2 - Photographic film package capable of recording information - Google Patents

Description

The present invention relates to a photographic film package capable of recording various information at various times.

[Conventional technology]

Conventionally, optical means for improving print image quality,
Various kinds of information using magnetic means or electric means, such as shooting information (presence of strobe, color temperature, LV value, shooting distance, lens focal length, subject contrast, shooting date and time, shooting location, etc. ), Film information (film type, film manufacturing date, printing conditions, etc.) and lab information (lab name, development date, printing conditions for simultaneous printing, etc.) have been input to photographic film. .

This information input method is described in, for example, JP-A-62-50
Nos. 743, 62-209430 and U.S. Pat. No. 4,864,332.

[Problems to be solved by the invention]

However, conventional information input methods include optical means,
Only one of magnetic means and electric means was used.

For this reason, it has been extremely difficult with conventional information input methods to easily and reliably input the various information described above at the time of film production, photographing, development, printing, reprinting, and the like.

In particular, this problem was serious in films with small screen sizes such as 110 format and half size format.

The present invention has been made in view of this point, and an object of the present invention is to provide a photographic film package capable of inputting various information at various times as described above.

[Means for solving the problem]

To achieve this object, the present invention provides a photograph in a photographic film package comprising a cartridge, a spool rotatably supported inside the cartridge so as to be rotatable about an axis, and a photographic film wound on the spool. The film or cartridge is modified so that the photographic film or cartridge is formed with a combination of optical, electrical or magnetic means. That is, as an optical means, the width of the photographic film is 20 mm or more and 35 mm or less,
Image exposure area of photographic film The area of one frame is 200 mm ² or more 50
0 mm ² is formed so as to become less, the photographic film is the area of the optical information recording portion of the area of the image exposure unit one frame 30
It is set so that it is at least%. Further, in addition to this optical means, the photographic film or cartridge is provided with at least one of an electric storage means and a magnetic storage means, and the optical recording portion is the optical recording portion of the photographic film of the image exposure section. It is provided outside in the width direction. Also,
In the present invention, the photographic film is provided with one or two perforations for each frame of the image exposure portion, and the magnetic storage means is configured to include the transparent magnetic base provided on the photographic film.

In a preferred embodiment, a semiconductor element is used as the electric storage means provided in the cartridge.

Further, in another preferred embodiment, the photographic film or cartridge is provided with magnetic storage means.

To maintain the image quality of prints, the area of one frame of the image exposure unit must be 200 mm ² or more. Further, when the area is 500 mm ² or more, the area of a portion that can be used for information recording as an optical means is reduced. Therefore, the area of one frame of the image exposure portion is preferably 200 mm ² or more and 500 mm ² or less.

A more preferred embodiment is a film width and 26～32Mm, is an area of the image exposure unit one frame obtained by the 350mm ² ~450mm ^2.

At present, photographic film production information is often input as a bar code outside one of the left and right perforations. When trying to input various information in addition to this manufacturing information in a barcode system, inputting one line at a time on both sides of the photographic film requires insufficient input space, and requires at least two lines of input space on one side. . Therefore, it is necessary to increase the ratio of the area of the optical information recordable portion to the area of one frame of the image exposure portion from the current 11% to 30% or more. Even when a recording method other than the barcode is adopted, the information density is not much different and the same area ratio is required.

On the other hand, since it is desirable that the area of the image exposure unit is large,
Taking this point into account, a preferable upper limit of the ratio of the optical information recordable area to the area of one frame of the image exposure unit is determined. The upper limit of this ratio is preferably 60%, more preferably 50%.

Or, for example, removing perforations,
Alternatively, by reducing the area, it is possible to increase the area of the optically information recordable portion without reducing the area of the image exposure portion.

In this case, it is preferable to provide one or two perforations or notches for positioning the screen instead of the usual perforations per frame.
When two pieces are provided, two pieces may be provided on one side or may be provided on both sides with the screen sandwiched therebetween.

In the present specification, the ratio of the area of the optical information recordable portion to the area of one frame of the image exposure portion is defined as follows. As shown in FIG. 1, if the horizontal length of one frame of the image exposure portion is a, the vertical length is b, and the width of the photographic film is c, the film area A for one frame is A = a × c,
The area B of the image exposure portion is B = a × b, and the area C of the optical information recordable portion is C = A−B = a × (c−b). Therefore, the area ratio of the optical information recordable portion is C / A = (AB) / A = (cb) / c.

When there is perforation, the area C is obtained by removing the area of the perforation hole. It is not always necessary to utilize all optical information recordable parts. It is only necessary to record necessary information in a necessary part according to the purpose.

In the photographic film of the photographic film package according to the present invention, the optical information recordable portion is preferably formed on the outer side of the image exposure portion in the photographic film width direction. this is,
This is because if the optical information recordable portion is formed between the image exposure portions, the total length of the photographic film is extended, which is disadvantageous in making the camera thinner.

Preferably, the character information is input in the form of characters or bar codes.

It is preferable to input various information at the time of film production or photographing using optical means utilizing the photosensitivity of the photographic film from the viewpoint of simplifying the production process, downsizing the camera, reducing costs, and the like. However, since it is not necessary to develop the film, it is better to input or read the information to confirm the usage status of the film (unused, used, number of shots, etc.) by using magnetic means or electrical means. preferable.

Further, it is preferable to input various kinds of information in the laboratory using magnetic means or electric means, since information can be input even after film development.

Generally, it is suitable to input information using an optical means at the time of photographing and using a magnetic means after development.
For example, in order to magnetically input information from a camera into a photographic film at the time of shooting, it is necessary to maintain a constant relative speed between the film and a magnetic head, and to electrically store the information in a semiconductor element. For this purpose, a circuit or a contact point with a semiconductor element is required, and for that purpose, the camera must be provided with a complicated mechanism. For this reason, an optical means utilizing the photosensitivity of a photographic film is excellent for inputting information at the time of photographing because of its reliability and simplicity.

On the other hand, once the photographic film is developed, optical means utilizing the photosensitivity of the photographic film cannot be used, so that it is necessary to use magnetic means or electric means.

The semiconductor element used as the electric storage means is preferably an EEPROM or the like. The semiconductor element is preferably attached to the cartridge, but the cartridge and the semiconductor element may be separated and separately mounted on the camera. Further, an IC card including a microcomputer and an EEPROM can be used as the electric storage means.

As magnetic storage means, U.S. Pat.
The transparent magnetic bases shown in 782947, 4279945 and the like are preferable. The advantage of this transparent magnetic base is that information relating to the film screen can be input at a position adjacent to the film screen, and that the optical information recording unit can also be used as a magnetic information recording unit. The magnetic information recording layer can be formed only outside the image exposure portion. In this case, the magnetic information recording layer may be opaque.

When a magnetic information recording means is provided in the cartridge, the magnetic means can input and output information relating to the use status of the DX code and the film. It is preferable that the information on the film use status input to the cartridge can be confirmed without removing the film from the cartridge. Means for providing magnetic recording means in the cartridge include a method of attaching a magnetic tape to the cartridge, a method in which the cartridge is molded from a polymer in which a magnetic material is mixed and dispersed and a magnetic recording function is imparted to the cartridge, and an ink in which the magnetic material is dispersed. There is a method of printing a cartridge, and the like.

In order to prevent information input by optical means from disappearing due to so-called "light fogging", the cartridge is preferably of a light-tight type (for example, one described in Japanese Utility Model Application No. 1-17525).

〔Example〕

2 and 3 show an embodiment of the photographic film of the photographic film package according to the present invention. As shown in FIG. 2, the base 2 of the photographic film 1 has a thickness of 122 μm. The base 2 is a cellulose triacetate base, and a magnetic substance (γ-Fe ₂ O ₃ ) 3 is coated on the back side thereof at a rate of 0.1 g / m ² (see Japanese Patent Publication No. 57-6576).

On the front side of base 2, a sensitivity of 400 g at a rate of about 7 g / m ²
The photosensitive layer 4 for a color negative film is formed (see JP-A-63-236035).

FIG. 3 shows a state in which the photographic film 1 (film width 30 mm) is stored in the photographic film package 5. The photographic film package 5 comprises a spool 6 and a cartridge body 7. One end 6a of the spool 6 is rotatably supported around the axis inside the cartridge body 7, and the other end 6b projects from the cartridge body 7 to the outside. The spool 6 is supported so that it can be rotated from the outside of the cartridge body 7. The photographic film 1 is accommodated in a spool 6 in a rolled state, and an opening 8 for drawing out the photographic film 1 is formed in the cartridge body 7. The photographic film 1 has an image exposure part (area 432 mm ² ) 9,
It has an optical information input portion 10, a portion 11 serving both as optical information input and magnetic information input, and a perforation 12 for positioning a frame of the photographic film 1. The optical information input section 10 is an optical storage means utilizing the photosensitivity of the photographic film 1.

The input of various information using the photographic film 1 stored in the photographic film package 5 as described above and the print creation utilizing the information are performed as follows, for example.

When a film is processed, information such as a DX code and a film manufacturing date is input to the optical / magnetic information input section 11. The input may be characters or bar codes may be used.

Using the LED mounted on the camera, the photographing date, presence / absence of a strobe, trimming information for pseudo zoom, and the like are input to the optical information input section 10 in the form of a barcode.

The print conditions for correcting the aging of the film are automatically set from data such as the date of film production, the date of photography, and the date of development. The setting is automatically performed according to a program previously installed in the auto printer.
As a result, it is possible to minimize deterioration in print quality due to the aging of the film.

When a strobe is used, correction is automatically made to add yellow to the print according to a program incorporated in the auto printer. As a result, the color correction which has conventionally depended on manual operation is automatically performed, and the color variation of the photograph using the strobe is reduced.

According to the pseudo zoom information, trimming is automatically performed by an auto printer at the time of printing. Even when trimming is performed, the shooting date is printed in the lower corner of the print screen. As described above, the pseudo zoom print can be made without any manual operation, and the date can be printed in the pseudo zoom print.

In the lab, the print conditions predicted by and the corrected print conditions for each frame are magnetically input to the optical and magnetic information input unit 11. As a result, a change in color tone during simultaneous printing or reprinting can be reduced.

The number of prints, trimming conditions, and the like at the time of reprinting are magnetically input to the optical / magnetic information input section 11 at the next store. This improves the efficiency of the lab's reprint and facilitates reflecting the photographer's intention on the print.

As is clear from the above, by using both optical means and magnetic means as in the present embodiment, it becomes possible to input various information not only at the time of photographing but also after development, and the image quality of the print Can be improved.

Next, another embodiment of the photographic film package according to the present invention is shown in FIG. The packaging body 20 is composed of a cartridge body 21, a cartridge body 21 and a flexible wall portion 22 joined at one end thereof, and a spool 23 rotatably supported inside the cartridge body 21. A pair of protrusions 24a and 24b that engage with a mechanism on the camera side are formed at both ends of the flexible wall portion 22. The photographic film 25 is housed inside the cartridge body 21 in a state in which the photographic film 25 is tightly wound in a roll on the spool 23. The photographic film 25 is the same as the photographic film 1 shown in FIG. 3 (see Japanese Patent Application Laid-Open No. 1-231045).

When the package 20 is loaded into the camera, a mechanism (not shown) on the camera side engages the protrusions 24a and 24b and pushes up the protrusions 24a and 24b. Since the cartridge main body 21 is fixedly mounted inside the camera, the flexible wall portion 22 is bent upward as shown in FIG. 4 by pushing up the protrusions 24a and 24b to form the film outlet 26. . Thereafter, by rotating the spool 23 in the film feed direction (counterclockwise in FIG. 4), the photographic film 25 is tightly wound around the spool 23, so that the photographic film 25 is fed out from the film drawer 26. To the film exposure position in the camera.

A magnetic tape 27 is attached to the outside of the wall of the cartridge body 21 of the package 20 as a magnetic storage means. As the magnetic tape 27, for example, a commercially available magnetic tape for audio can be used.

Information relating to film sensitivity is previously input to the magnetic tape 27, and an appropriate input / output mechanism (not shown) on the camera side reads the information when the package 20 is loaded. Further, when the packaging body 20 is taken out from the camera, information on the number of used films is input to the magnetic tape 27 by the input / output mechanism on the camera side. It is possible to prevent the used film from being fed when the patrone in which the information on the number of used films has been input is loaded into the camera again, and when photographic film is used halfway, the unrecorded frames are exposed to the camera. The photographic film can be automatically fed until the position is reached.

Instead of the magnetic tape 27 as the magnetic storage means, an EEPROM as the electric storage means can be used (see
See JP-A-61-116932. In this EEPROM, the DX code, film usage status, shooting location, etc. are input. Further, if information such as printing conditions is input to the EEPROM in the laboratory, the information can be used later in reprinting. Also, the number of reprints, trimming conditions, and the like of the photographer can be input to this EEPROM.

Further, in the above embodiment, a photographic film in which the film base containing a magnetic material is a cellulose triacetate base may be used. In this case, the printing conditions for each frame are also entered in the EEPROM in the lab.

〔The invention's effect〕

With the photographic film cartridge according to the present invention, which uses the magnetic storage means or the electrical storage means together with the optical storage means, various information can be easily and surely input at various times.

[Brief description of the drawings]

FIG. 1 is a plan view showing the area of each part of the photographic film, FIG. 2 is a cross-sectional view of the photographic film according to the present invention, FIG. 3 is a cross-sectional view of an embodiment of the packaging body according to the present invention, and FIG. It is a perspective view of other examples of the package concerning the present invention. [Explanation of symbols] 1 ... Photo film 2 ... Base 3 ... Magnetic material 4 ... Photosensitive layer 5 ... Photo film packaging 6 ... Spool 6a, 6b ... Both ends of spool 7 ... Cartridge body 8 ... Opening 9 …… Image exposure area 10 …… Optical information input area 11 …… Optical and magnetic information input area 12 …… Perforation 20 …… Photo film packaging 21 …… Cartridge body 22 …… Flexible wall Part 23 …… Spool 24a, 24b …… Protrusion 25 …… Photo film 26 …… Film outlet 27 …… Magnetic tape

Claims (1)

(57) [Claims] 1. A photographic film package comprising a cartridge, a spool rotatably supported within the cartridge so as to be rotatable about an axis, and a photographic film wound in a roll on the spool. 20 mm or more
35mm or less, the area of one frame of the image exposure part is 200mm ² or more 50
The photographic film is formed so as to have an area of 0 mm ² or less, and the optical information recording portion is provided so that the area thereof is 30% or more of the area of one frame of the image exposure portion. Is provided with at least one of an electric storage means and a magnetic storage means, and the optical recording portion is provided outside the image exposure portion in the width direction of the photographic film, The film is provided with one or two perforations for each frame of the image exposure section, and the magnetic storage means includes a transparent magnetic base provided on the photographic film.