JPS60117226A - Printing device of identification symbol - Google Patents

Abstract

PURPOSE:To print an identification signal with nearly constant density without reference to the kind of a film by discriminating a display means for the kind of a film which is provided to a cassette through a discriminator, and setting the quantity of light, etc., of a light emission part automatically. CONSTITUTION:An indication tag, for example, in ''black'' for a regular type or in ''white'' for a orthotype is stuck as a display means 2. A discriminator 3 generates an output when the display means 2 indicates ''white'' by means of a reflection type sensor consisting of a light emitting element and a photodetecting element. Control circuits 6a and 6b differ in the capacity of a discharging capacitor or aperture opening degree from each other to set the quantity of light of the light emission part 5 to a necessary value. For example, the control circuit 6b is provided with a rotary switch 7 for fine adjustment. A switch circuit 8 is connected normally to the light emission part 5 and control circuit 6a (for regular type), and the light emission part 5 is connected to the control circuit 6b with a signal from a decision circuit 4.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an identification mark printing device that can automatically print identification marks on sheet films such as X-ray photographic films.

[Conventional technology]

In hospitals, etc., identification symbols such as the patient's name, the date of imaging, and the area of imaging are printed on the sheet film used for X-ray photography to identify the film, but as is well known, regular type sheet film There are different types, such as , orthotype, and they have different photosensitive wavelength ranges. In order to keep the printing density of the identification symbol constant for sheet films with different photosensitive wavelength ranges, it is necessary to adjust the density by changing the amount of irradiated light depending on the type of film ( (Special Publication No. 56-41090).

For this reason, conventionally, an operator visually discriminates the type of film and prints the identification symbol by operating an indirect switch such as the amount of light so that the printing density is constant according to the result of the nine discriminations.

However, manual operation by one person is troublesome, and not only does it lead to mistakes, but it also takes time to distinguish one type, which is inefficient, and continuous operation for a long time causes eye fatigue.

[Purpose and structure of the invention]

This invention was made in order to solve the above problem, and the cassette in which the sheet film is placed is provided with display means for displaying the type of film, and this is discriminated by means of a separate device. Provided is an identification symbol printing device that is configured to automatically set the light intensity of the light emitting section based on the , so that even if the type of film is different, it is possible to automatically print an identification signal of 5 = constant density 1. It is intended to.

(Embodiments) Next, the present invention will be described based on embodiments shown in the accompanying drawings.

Figure 1 is a block diagram showing an example of this invention.
The case where a film is used is shown. In the same figure, ■
1 is a cassette in which photographed sheet film is placed inside, and a display means 2 is provided on the surface of the cassette 1 to indicate whether the interior film is a regular type or an orthotype. In this example, as the display means 2, a case is shown in which slips of "1 black" for the regular type and "white" for the orthotype are pasted.

Reference numeral 3 denotes a discriminator for discriminating the display means 2, and the discriminator 3 can be satisfied by using a well-known reflective sensor composed of a light emitting element and a light receiving element. In this reflective sensor, if the display means 2 is 1 white, the light from the light emitting element is reflected and an output is generated from the light receiving element, and if it is black, the light from the light emitting element is absorbed and output from the light receiving element. It is designed to produce no output.

Reference numeral 4 denotes a discrimination circuit which receives the output from the discriminator 3 and outputs a discrimination signal. In this embodiment, the discrimination signal is generated when the display means 2 of the cassette 1 is white, that is, the interior film is of the ortho type. Once the identification symbol has been printed, it will continue to be output until the burning of the identification symbol is completed.

Reference numeral 5 denotes a light emitting unit for printing identification symbols (not shown) such as the patient's name, imaging date, imaging site, etc. onto the sheet film.The light emitting unit 5 is constructed using a strobe, and the identification symbol is written on the sheet film. The original is illuminated with light, and the reflected light is imaged onto a sheet film 2 through an appropriate means such as an optical system to perform printing.

6a and 6b are control circuits for controlling the light emitting section 5 so that the printing density of the identification symbol is constant y' regardless of the type of film; The connection to the light emitting unit 5 is switched by the switching circuit described later, and the control circuit 6a corresponds to the regular type and the control circuit 6b corresponds to the ortho type.The control circuits 6a and 6b correspond to the built-in discharge By making a difference in the capacitance of the capacitor or the aperture opening,
The amount of light is set to the required value. Control circuit 6b
is equipped with a rotary switch for finely adjusting the burn-in density by changing the capacitance of the capacitor.

Reference numeral 8 denotes a switching circuit that receives the output of the discrimination circuit 4 and switches the connection of the light emitting section 5, and the switching circuit 8 is constructed using a relay. This relay normally connects the light emitting section 5 and the control circuit 6a (for regular type), and switches when a discrimination signal is generated from the first discrimination circuit 4. When the signal disappears, the switch is switched again to connect the light emitting section 5 and the control circuit 6a.

Figure 2 shows an embodiment in which the identification mark printing device according to the present invention is applied to an automatic sheet film loading and collecting device.
There is C.

10 is a mounting portion for the cassette 1. When the shutter 11 is unlocked and the cassette 1 containing photographed sheet film is mounted on the mounting section 10.

The lid opening mechanism 12 operates and the magnet 13 forcibly opens the lid of the cassette 1. The above-mentioned discriminator 1 is disposed near the shutter 11, and is adapted to discriminate the display means 2 when the cassette 1 is attached. When the cassette 1 is opened, the presence or absence of a sheet film is detected by the sheet film detector 14. As a result, when the presence of the sheet film is confirmed, it is sucked by the suction device 15 and sent to the conveyance device 17 via the rollers 16. A light emitting unit 5 configured to be able to set the amount of light, etc. based on the above-mentioned discrimination result is installed near the conveying device 17 [
The sheet film which has been printed with the identification distribution) is sent to the receive magazine 18 and stored therein.

Next, in the empty cassette I, add microstrip 1.
The sheet film corresponding to the size of cassette 1 detected by
(i+I) of c is selected and j' is loaded via the Ill feeding device 21.

Next, the operation of this embodiment will be explained.

When a cassette 1 containing photographed sheet film is mounted on a mounting section 10 of an automatic sheet film loading and collecting device, a discriminator 3 is activated. If the interior film is a regular type, the "black" display means 2 is attached to the surface of the cassette 1, so the light from the light emitting side of the discriminator 1 is absorbed.

No output signal is generated from the light receiving side, so no discrimination signal is generated from the 2 discrimination circuit 4, and the switching circuit 8 prints the identification symbol on the sheet film with the light emitting section 5 connected to the control circuit 6a for regular type. I will attach it.

Next, if the sheet film is orthotype,
A “white” indicator 2 is attached to the surface of the cassette 1.
Therefore, the light from the light emitting side of the first discriminator 3 is reflected, and an output signal is generated in the same way as the light reception example. Upon receiving this signal, the discrimination circuit 4 outputs a discrimination signal. Upon receiving this signal, the relay of the switching circuit 8 is switched, and the 2 light emitting parts 5 are controlled by the control circuit 6b.
connected to the relay. As a result, the light amount or aperture opening of the light emitting section 5 changes to a predetermined value.

The identification symbol is printed with the same density as in the case of regular type sheet film.

At this time, fine adjustment of the burning density is performed by operating the rotary switch 7.

When the burning of the film in the ortho type is completed, the discrimination signal of the discrimination circuit 4 disappears, the relay of the switch 1-δ8 is switched, and the light emitting part 5 is connected again to the control circuit 6a for the regular type, and the secondary Prepare for the film.

In addition, although the case where a strobe was used as the light emitting part 5 was demonstrated in the said Example, a tungsten lamp can also be used. In this case, in order to keep the printing density constant, the light intensity and irradiation time may be adjusted depending on the aperture.
- It is also possible to provide the Talis isochi 7 not only in the control circuit 6b for the orthotype but also in the control circuit 6a so that fine density adjustment can be performed even in the case of the regular type. Furthermore, the display means 2 and the discriminator 3 installed in the cassette 1 are not limited to the above embodiments, but may be of any configuration as long as they can distinguish the type of sheet film, and there are three types of sheet film. It may be more than that.

〔Effect of the invention〕

As described above, the identification mark printing apparatus according to the present invention includes a discriminator for discriminating the types of sheet films with different photosensitive wavelength ranges, a discriminator circuit that receives the output of the discriminator and outputs a discrimination signal, and A light emitting part for burning an identification symbol and a light emitting part corresponding to the type of sheet film (provided,
A control circuit that controls the light emitting section so that the printing density of the identification symbol is constant for different types of sheet films, and a switching switch that switches the light emitting section to a corresponding control circuit based on the output of the discrimination circuit. Since it is characterized by consisting of a circuit, the light intensity of the light emitting part etc. that prints the identification symbol (=J) is automatically adjusted according to the type of sheet film,
Regardless of the type of film, the identification signal is printed efficiently at a constant density.

Further, according to the present invention, the work of determining the type of film and adjusting the density of the sheet 1 is performed fully automatically, which not only frees the operator 2 from these tasks, but also eliminates the need for the determination of the type of film and the adjustment of the density. Various excellent effects can be expected, such as eliminating key ql errors.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a block diagram, and FIG. 2 is a cross-sectional view showing an automatic loading and recovering system for Sea I film to which the present invention is applied. - Case 7 - Display means 3 - Discriminator 4 - 1' Ribetsu exit 5 - Light emitting part 6a, 61 + - Control circuit 7 - Rotary switch 8 - Switching circuit Patent applicant Konishiroku Photo Industry Co., Ltd. Figure 1 Figure 2 Regret 5

Claims (1)

[Claims] A discriminator that discriminates the types of sheet films with different photosensitive wavelength ranges, a discriminator □ circuit that receives the output of the discriminator and outputs a °ζ discrimination signal, and a light emitting unit that prints an identification symbol on the sheet film. , C is set according to the type of sheet film.
), and a control circuit that controls the light emitting section so that the printing density of the identification symbol is constant for different types of sheet films, and a control circuit that switches the light emitting section to a corresponding control circuit based on the output of the discrimination circuit. An identification mark printing device characterized by comprising a switching circuit.