JPH02210341A - Printing device for photographic film - Google Patents

Abstract

PURPOSE:To improve the quality of printed information such as a character by generating a rectangular picture element such as a character, which is carried in synchronization with the surface of a carried film, in a display device disposed opposite to the face of a film. CONSTITUTION:The printing information is formed previously with a character generation controller 4. According to a signal from a film position detecting means 2, the display of a picture element such as a character in one-dimensional line in a direction perpendicular to the carrying direction of the roll film F is started. After that, according to a synchronous signal from a film carrying speed detecting means 3, the display of one-dimensional picture element synchronous with the roll film F is repeated and controlled to display various pieces of information composed of appropriate characters and symbols. A device 5 driving the electric display device 6 converts signals from the character generation controller 4 into conditions under which a picture element can be formed, and the electric display device 6 prints the various pieces of information composed of characters, etc., on the roll film F. Thus, printing of appropriate quality can be achieved.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a photographic film for imprinting various information such as frame characters, film unique numbers, bar codes, etc. on the edges of the photographic film, the inner periphery of the image frame, etc. This relates to a hardening device.

[Conventional technology]

Photographic film, especially photographic roll film, has so-called side marks, such as symbols indicating film characteristics and the manufacturer's brand name, and a frame number indicating the number of frames to be taken, printed on both edges of the film. .

Further, in disc films, a unique film number, which is different for each film, a bar code, a brand name, etc., which is different for each film, is printed on the inner peripheral surface of the image frame.

Examples of devices for printing these various types of information include Japanese Patent Application Laid-open No. 56-83730 or Utility Model Application No. 56-383.
It is disclosed in Publication No. 41. This and other burning equipment are
In both cases, a negative plate corresponding to the printed characters is used, and this is printed onto a running film in synchronization using optical means, and the printing is performed using a pulsed light source.

[Problem to be solved by the invention]

However, since these loading devices print using a negative plate, they themselves have problems in terms of maintenance and management.

SUMMARY OF THE INVENTION An object of the present invention is to provide a photographic film loading device that solves the above-mentioned problems caused by using a negative plate.

[Means to solve the problem]

The present invention includes a film conveyance means, a film position detection means for detecting the position of the conveyed film and generating a signal,
an electric display device arranged to face the film surface and print characters, etc. onto the film; and a character generation control device that generates pixels of characters, etc. on the electric display device based on a signal from the film position detection means. The electrical display device comprises:
It is characterized in that it generates a plurality of pixels in one-dimensional lines arranged perpendicular to the film transport direction, and the pixels are rectangular.

〔Example〕

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

FIG. 1 is a layout diagram of the components in the photographic film loading device of the present invention. F is a roll film to be burned, which is transported in the direction of the arrow by the film transport means 1 which controls the running of the roll film F. In this embodiment, a film sprocket drum is used as the film transport means 1, and controls the light receiving position of the edge portion of the roll film F. 2 is a film position detection means for detecting the loading position of the roll film F, which detects the position of the a-roll film F being conveyed and generates a signal, and is linked to the perforation of the roll film F or the film sprocket drum. It consists of an optical detector, etc. using a timing cam etc. Reference numeral 3 denotes a film transport speed detecting means for detecting the film transport speed and generating a film synchronization signal, which operates in conjunction with the film transport means 1, and is usually a rotary encoder or the like. Reference numeral 4 denotes a character generation control device which creates loading information in advance and displays pixels such as characters on a one-dimensional line in a direction perpendicular to the transport direction of the roll film F based on a signal from the film position detection means 2. After that, the roll film F is
The display is controlled so that appropriate characters, symbols, and various other information are displayed by repeating one-dimensional pixel display synchronized with the . Reference numeral 5 denotes a driving device for the electric display device 6, which converts the signal from the character generation control device 4 into conditions that allow formation of pixels of the electric display device 6. The electric display device 6 is one that performs one-dimensional pixels,
An optical fiber recording tube with good directivity of the pixels on the tube surface, such as a recording tube with a large array of LEDs or liquid crystals, or a recording tube using a laser, is used. This electric display device 6 is
It is arranged to face the film surface of the roll film F, and is designed to imprint various information such as characters onto the roll film F.

FIG. 2 is a program flowchart of the character generation control device 4 in the photographic film loading device of the present invention.

First, the insertion specification conditions are read from the setting device of the character generation control device 4. Next, supplementary signals such as barcode signals from the outside are taken in, and the content to be inserted is selected and determined. Then, a character generator with a dot matrix display is used to allocate inset characters to the inset positions according to the program, and the information necessary for all insets is stored in a memory (called an image ram in the figure). to be memorized.

Then, based on the signal generated from the film position detection means 2 as the roll film F travels, one-dimensional pixel content of the image ram is converted into a horizontal deflection signal (H in FIG. 2,
5YNC signal) and video signal (V, T in Figure 2)
, R, signals) are turned on and off, and output to the electric display device 6 is started via the drive device 5. Thereafter, a one-dimensional pixel display signal synchronized with the roll film F is outputted by the synchronization signal of the film transport speed detection means 3, and all information such as inserted characters and symbols are created on the flowing roll film F surface. Then, loading is performed by repeating the above sequence until a work stop command is received.

FIG. 3 is a conceptual diagram of image formation by the photographic film loading device of the present invention. This figure shows the roll film F on the film conveying means 1 developed in a straight line, and the loading completed part P P seen from the emulsion side of the roll film F.
, which shows the shape of the latent image of the current loading progress area PN% and the expected loading area PF. As shown in FIG. 3, this sub-elephant has a rectangular shape because the shape of this embodiment is rectangular. In particular, the central portion P NI+ of the loading progressing portion PN
PMl is what will be displayed as a -dimensional pixel from now on, and the black dots in the loading completion part P, and the loading progressing part PN)PP
2..., PN2...... indicate the filled pixel portion. The resolution of the vertical and horizontal dot spacing of each pixel can be selected depending on the required image quality, making it possible to print with appropriate image quality.

In particular, in this embodiment, since each pixel is a rectangle surrounded by the conveyance direction of the roll film F and a line segment perpendicular to this conveyance direction, even if it is a -dimensional line, characters etc. can be filled without any gaps. You can do this.

In the above embodiment, if the roll film F is limited to being transported at a constant speed by the film transport means 1, the film transport speed detection means 3 can be replaced with a clock pulse generated within the character generation device, and is therefore unnecessary, making it simple. The structure is as follows.

Furthermore, the electric display device 6 may be moved when the roll film 1 is stopped, or the electric display device 6 may be moved when the roll film 1 is being transported, so that the relative speed is lowered and the loading is performed.

Furthermore, although roll films have been described in the embodiments shown in the drawings, other photosensitive materials such as disk films can also be used.

〔Effect of the invention〕

As described above, according to the present invention, in synchronization with the conveyance of the film, the character generation control device generates rectangular pixels such as characters on the electric display device disposed opposite to the surface of the conveyed film. As a result, there is no need for monitoring and confirmation, maintenance management is easy, the quality of the insertion information such as characters is high, and the insertion is performed with good responsiveness to changes in the insertion conditions.

Further, since the pixels are made into rectangular shapes surrounded by the film transport direction and a line segment perpendicular to the film transport direction, characters, etc. can be inserted without gaps even on negative-dimensional lines.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a layout of the components in a photographic film loading device, and FIG. 2 is a diagram showing the arrangement of the characters, etc. The program flowchart, FIG. 3, is a conceptual diagram of image formation by the photographic film loading device. 1... Film transport means 2... Film position detection means 3... Film transport speed detection means 4...
Character generation control device 5... Drive device 6... Electric display device

Claims (1)

[Scope of Claims] 1. A film transport means, a film position detection means for detecting the position of the film being transported and generating a signal, and an electric device disposed facing the film surface for imprinting characters, etc. onto the film. a display device; and a character generation control device for generating pixels such as characters on the electric display device based on a signal from the film position detection means, the electric display device being arranged in a direction perpendicular to the film transport direction. 1. A printing device for photographic film, which generates a plurality of pixels in a one-dimensional line, the pixels having a rectangular shape. 2. The photographic film printing apparatus according to claim 1, wherein the pixel is a rectangle surrounded by a film transport direction and a line segment perpendicular to the film transport direction.