JPH02210342A - Printing device for photographic film - Google Patents

Abstract

PURPOSE:To facilitate maintenance and management by previously storing information required for full printing in the storage memory of a character generation controller. CONSTITUTION:Information required for full printing is previously stored in the storage memory of the character generation controller 4. Based on signals generated from a film position detecting means 2 responding to the traveling of a roll film F, one-dimensional picture elements in an image RAM are outputted to an electric display device 6 via a driving device 5 as ON/OFF of a horizontally deflected signal and a video signal. After that, according to the synchronous signal of a film carrying speed detecting means 3, a one- dimensional picture element display signal synchronous with the roll film F is outputted, and the information is formed on the surface of the roll film F carrying the entire information composed of print characters and symbols. Before an operation stop command is inputted, the sequence is repeated to print it. Consequently, monitoring and confirmation are not needed by more to facilitate maintenance and management.

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. The present invention relates to a loading 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. All of these loading devices use a negative plate corresponding to the characters to be inserted, and imprint this onto the running film using optical means in synchronization.The imprinting is performed using a pulsed light source. ing.

[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 insert characters, etc. into 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. It is characterized in that information necessary for complete burning is stored in the memory of the character generation control device in advance.

[Example] Hereinafter, an example 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 loaded, and 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 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 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 that generates information necessary for complete burning in advance, and generates characters, etc. 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. The pixel display is started, and thereafter, one-dimensional pixel display synchronized with the roll film F is repeated by the synchronization signal from the film transport speed detection means 3, and various information such as appropriate characters and symbols are displayed. do. Reference numeral 5 denotes a driving device for the electric display device 6, which converts signals 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 has one-dimensional pixels, and uses an optical fiber recording tube with good directivity of the pixels on the tube surface, such as a recording tube with a large number of LEDs or liquid crystals arranged, or a recording tube using a laser. . This electric display device 6 is arranged to face the film surface of the roll film F, and is adapted to insert various information such as characters into 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 to select and determine the burning contents. Then, a character generator with a dot matrix display is used to allocate characters to be burned to the insertion positions according to the program, and the information necessary for complete burning is stored in a storage memory (called an image ram in the figure). Make me remember.

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 detecting means 3, and all information such as inserted characters and symbols is created on one side of the flowing roll film. 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 shows the loading completed part PPx the current loading progress part PN, and the predicted loading part PF as seen from the emulsion side of the roll film F. This figure shows the shape of the latent image. Especially the central part PN of the hardening progress part PN.
l+P Nl is what will be displayed as a -dimensional pixel from now on, and the black dot P py in the loading completed section P P % loading progress section P py...+PN2...
. . . indicates a previously 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 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, when pixels such as characters are generated by the character generation control device in synchronization with the conveyance of the film on the electric display device disposed opposite to the surface of the conveyed film, the Since the information necessary for complete burning is stored in the memory of the character generation control device in advance, there is no need for monitoring and confirmation, maintenance management is easy, and loading can be performed with good responsiveness to changes in burning conditions. Become.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a layout diagram of the components in a photographic film loading device, FIG. 2 is a program flowchart of a character generation control device in a photographic film loading device, and FIG. 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)

[Claims] 1. A film transport means, a film position detection means for detecting the position of the film being transported and generating a signal, an electric display device disposed opposite to the film surface for imprinting characters etc. on the film, and the film A character generation control device that generates pixels of characters, etc. on the electric display device based on a signal from the position detection means, and information necessary for full burning is stored in advance in the memory of the character generation control device. A printing device for photographic film featuring: