JPS6095521A - Apparatus for recording information on photographic film - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to a device for recording information, the information recording device having a light source positioned along a linear strip and a portion of film placed at an exposure position being advanced every time. an adjustment mechanism coupled to the light source for activating the light source in a configuration and sequence such that the film is optically exposed with information consisting of, for example, dots or dashes on the film as the film passes the light source; has been done.

The use of a small light source, such as a light-emitting diode, to expose desired data in the form of alphabetic characters on photographic film is described in German Patent Application No. 303
It is described in Publication No. 1100. During the advance of the film, for example, a 7
Dot-row diodes make it possible to write letters in a continuous form along the film. Thus, seven diodes write characters along one edge of the film, with each column forming a 5.times.7 matrix.

On the other hand, if it is desired to write information across the width of the film perpendicular to the film advance direction, a large number of diodes are required, to be precise at least five diodes for each character. If the number of characters desired is large, e.g. 30 characters, then 150
of light emitting diodes are required, which means that although the individual diodes take very little current, and although it is not necessary to light up many individual diodes at the same time, the instantaneous current consumption is not small, and the photo In the case of cameras, the consumption is at least unacceptably high.

The above-mentioned problem is solved by the present invention, which provides for writing a line of characters perpendicular to the direction of film advancement in such a way that the light sources are spaced separately or subdivided into groups. A light source disposed in a strip on a desired path of the film perpendicular to the direction of film advancement, with the light source having strips that can be divided into small parts at an angle α≠0 with respect to the standard in the direction of advancement. The light source adjustment mechanism is arranged to cause the light sources to run perpendicular to the direction of advancement with a displacement distance distributed to each individual light source or to each group of light sources so as to have and when the separate light source or group of light sources is activated, the area extending perpendicularly to the film that is to be recorded during the advance of the film is brought into contact with the separate light source or group of light sources, and the area on the film as the film is advanced is It is characterized in that the recorded string of characters is arranged in an area perpendicular to the forward direction.

The present invention can also be used in a type of camera in which different magazines with different film speeds are interchangeable. In embodiments of the invention suitable for this purpose, the light source adjustment mechanism is arranged to sense the speed of the film as it advances and to size the time intervals forming the sequential actuation sequence based thereon. It has been set up 4-1. In some types of cameras, the film speed is not constant but varies during the transport cycle. An embodiment of the invention which can be used in this case is characterized in that the light source adjustment mechanism is arranged to sense the change in speed and change the time interval accordingly, introducing a time lag if necessary.

The arrangement of the invention produces a line of characters running perpendicular to the direction of film advancement, while keeping the maximum current consumption low.

Embodiments of the invention will now be described in detail with reference to the accompanying drawings.

As mentioned above and as is clear from FIGS. 1 and 2, the object of the present invention is to print the character 1 across the width of the photographic film 2 as the photographic film 2 advances in the direction of the arrow in the camera when the image 3 is exposed. The purpose of writing is to perform writing. The letter 1 is written in the form of a 5×7 dot array by a row 5 of small light-emitting diodes 6, which extends at an oblique angle across the film 2 at an angle α to its vertical direction.

The array 5 of light emitting diodes is mounted inside a camera body 7 equipped with a motor 8 for winding the film 2 in its magazine (not shown). In the case shown in FIG. 3, the diodes 6 are arranged in five groups, each group being placed at right angles to the direction of advance of the film and belonging to a constant character position, the groups themselves having an imaginary inclined piece. Displaced from each other in such a way that it is a concentrated line passing through the group. Exposure of a line of characters to the passing film path or frame requires another group of light emitting diodes to be subsequently energized. The diodes are arranged on the film in such a way that the final result is a line of letters in the area extending at right angles to the direction of film advancement, or a plurality of line of letters if successive advances are repeated. It operates continuously as the film is fed forward. The displacement distance between groups is shown enlarged in the drawing for clarity. Control of the diodes is provided by the previously described electronic control mechanism (not shown) which controls the light emitting diodes with respect to film advancement speed. When the film is advanced, the electronic control mechanism senses this through a sensing device of the type mentioned above and changes the time interval between the control sequences for the light emitting diodes if the film advance speed is not kept constant but is varied. The interval must be selected.

In the embodiment shown in FIGS. 2 and 3, the light emitting diodes are displaced in groups in the direction of film advancement by an amount of advancement iJ specified for each group. As a variant, each light-emitting diode can be displaced in the forward direction by one stroke, which is specified for each separate light-emitting diode that together form a tilted row. a gradually increasing distance from a first light-emitting diode or group of light-emitting diodes, in which the light-emitting diode or group of diodes is arranged close to the edge of the film extending in the forward direction (see reference numeral 9 in FIG. 3); Depending on whether they are arranged in each separate light emitting diode or in each group
'7- This displacement occurs in each diode or each group by one stroke increasing with a constant value due to the above-mentioned strip 5 of a light-emitting diode or group of light-emitting diodes is then produced and The strips form a straight line, which runs at an oblique angle α to the direction of film advancement.

Whether the angle α has to be placed before or after the standard (see Figure 3, middle cylinder No. 10) in the forward direction and whether the strip has to be tilted forward or backward in the forward direction depends on the light emitting diode. depends on the order in which it is proposed to operate. In the case of the embodiment shown in FIG. 3 (see the arrows used to indicate the forward direction), it is the group 9 that is activated first, and then sequentially by the other groups. If the operating configuration is reversed, the strip 5 is tilted in the opposite direction, so that the angle α is located on the opposite side of the standard 10.

For other control types 8 sets other than operating the light emitting diodes sequentially from one end of the film to the other, e.g. from both ends of the strip to the center or vice versa, from the center to both ends of the strip. When actuated, the strips can have other shapes than slanted straight lines. In the case of the operating mode from both ends toward the center, the shape is V-shaped.

The method of positioning the light emitting diodes determines the number of light emitting diodes that must be operated simultaneously. In the case of individually displaced light-emitting diodes, they are activated one after another in consecutive order.

In the case of the embodiments according to FIGS. 2 and 3, the light-emitting diodes of each group whose diodes extend along the standard in the forward direction must be activated simultaneously, and then the light-emitting diodes of the next group must be activated. The light emitting diodes are activated and continued in sequence. Instantaneous current consumption can do this, and of course there is nothing to prevent a large number of groups from being positioned according to the same standard with all of these groups having to be operated at the same time. One of the characters that must be recorded only by the light-emitting diodes that must be activated when it is specified above that the light-emitting diodes must be activated in sequence or all of a group must be performed together. It must be remembered that it forms part of the

The method of operating the light emitting diode and the position given to the light emitting diode depend on factors such as the desire to keep instantaneous current consumption low, the amount of space available for displacement of the light emitting diode, and the speed of the film is also important. This is a serious problem.

The invention is not limited to the embodiments described and illustrated above, but various modifications are possible within the scope of the claims. Instead of a dotted display, e.g. 7 sectors or 15
A sector type display can be used. The rows of light emitting diodes can be positioned so that the characters appear on the image, rather than on one side of the image, and so that multiple rows of characters can be written.

It is important to position the character rows perpendicularly to the film for special purposes by making appropriate adjustments. In embodiments with space for long characters, the forward feeding of the film does not end when the advance of the picture frame is completed, but continues until the text information is written, which remains behind the picture frame. This means that a piece of film can be filled with letters.

The invention works equally well with films in sheet or roll form. The group of light-emitting diodes can be constructed in a modular manner so that they can be easily replaced. The array of diodes can also be placed inside the film magazine.

Alternatively, the array of light emitting diodes can be arranged on a metal arm which is passed through to secure the film before it is wound.

[Brief explanation of the drawing]

The figures show an embodiment of the invention, in which Fig. 1 is a perspective view of a film contained in a camera and freely drawn out into the atmosphere, and Fig. 2 shows an apparatus according to the invention. FIG. 3 is a partially enlarged front view of the film showing the displacement angle between the light emitting diodes. 1... Text 2... Photographic film 3... Video
5...Line of light emitting diodes 6...Light emitting diodes 7...Camera body 8...Motor 9...
Group patent applicant for light-emitting diodes Victor Hasselblad Akcheborag 12- Procedural amendment (voluntary) November 1980? 60 Patent Application 1982-2028 (31J 2 Title of Invention Apparatus for Recording Information on Photographic Film 3, Relationship with the Amendment Case Patent Applicant Victor Haraselblad Ach, - Borag 4 Agent 5, Amendment Target (3) Separate t-9 and Otsu

Claims (1)

Claims: 1) a light source positioned along a linear strip and a television light source actuated such that advancement of the film optically exposes information past the light source and onto the film; The light source is arranged separately or as a group at regular intervals on the strip so that a line of characters can be written perpendicular to the direction of film advancement. The light source is caused to run perpendicular to the direction of film advancement with a displacement distance distributed to the separate light source or each group of light sources so as to have an angle α≠0 with respect to a standard in the direction of advancement;
A light source adjustment mechanism is arranged to actuate the light sources individually or in groups in a sequential order, and when the light sources are actuated, an area extending at right angles to the recording film is reached at the light source during advancement of the film. A device for recording information on the film of a photographic camera for special effects, in which a string of characters recorded on the film is placed within that area as the film advances. 2) A device according to claim 1, characterized in that the light source strip is constituted by a straight section having an angle .alpha. with respect to the normal direction of film advance. 3) A light source adjustment mechanism is arranged to sense the speed of the film as it advances and, based thereon, to determine the size of the time interval forming the continuous operating sequence. The device according to item 1 or 2 of the scope. 4) A light source adjustment mechanism is arranged to sense changes in speed and thereby change the time interval, introducing a time lag if necessary. The device described. 5) The device as set forth in Patent No. 1, wherein the film advancement mechanism is controlled by a light source adjustment mechanism so that the film continues to advance until space for all of the information is provided.