JPS60263128A - Printing device for identification symbol - Google Patents

Abstract

PURPOSE:To print an identification signal with nearly constant density automatically even if a film is of different kind and further handle even a film with different sensitivity by setting the quantity of light of a light emission part, etc., automatically on the basis of the decision result of a decision device which decides on the kinds of sheet films having different characteristics. CONSTITUTION:When a display means 2a of ''white'' is added on the surface of a cassette 1, light from the light emission side of the decision device 3 is reflected and the photodetection side generates an output signal. In this case, the other decision device 3 decies on sensitivity mark paper 2b and generates no output signal when it shows ''black''. When ''white'', the photodetection side generates an output signal. Therefore, both decision devices for sheets of mark paper 2a and 2b generate an output signa. A decision circuit 4 receives those signals and outputs a decision signal to switch the relay of a switch circuit 8, so that the light emission part 5 is connected to the relay of a control circuit 6b. Consequently, the light quantity or stop opening degree of the light emission part 5 varies to a specific value, thereby printing an identification symbol with nearly the same density with a regular type sheet film.

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, identification symbols such as the patient's name, the date of imaging, and the area of imaging are imprinted on X-ray sheet film to identify the film. There are different types of films, each with a different sensitivity wavelength range, and even a certain type of film has different sensitivity, and the relative sensitivity to the light source used in the irradiation system is It varies.

What is the printing density of the identification symbol on the X-ray sheet film?
In order to keep it constant, it is necessary to adjust the density by changing the amount of irradiated light depending on the type of film. For this reason, conventionally, an operator visually discriminates the type of film and, depending on the discrimination result, operates a switch to adjust the amount of light, etc. to print the identification symbol so that the printing density remains constant.

However, the operation by eight people was cumbersome, and many parts depended on one worker's ability, which not only led to mistakes but also required time to distinguish one type, resulting in poor efficiency.

In addition, the display means for displaying the type of film on the 9 cassettes allows for a recording error type. It was also practiced to determine the orthotype, automatically set the light intensity, etc., and then automatically print a certain identification symbol on the beam. However, with this technology, it was possible to correct for the large height difference in relative sensitivity to the light source between a regular type film and an orthotype film, but depending on the film, some films have a relative sensitivity equivalent to that of a regular type film, while others have a relative sensitivity equivalent to that of an orthotype film. When a regular type film was used, 1. If exposure was performed under normal control, the exposure condition would be poor and the identification symbol would be difficult to see.

[Purpose of the invention]

This invention not only reduces the above-mentioned manual work, but also enables automatic printing of identification signals of a constant density even for different types of film, and even for films of the same type with different sensitivities. The purpose of the present invention is to provide an identification symbol printing device that is compatible with the above.

[Structure of the invention]

This invention includes a discriminator for discriminating the types of two sheets of film having different characteristics, a discriminator circuit that receives the output of the discriminator and outputs a discrimination signal, and a light-emitting section for printing an identification symbol on the sheet film. .

a switching circuit that is provided corresponding to the type of sheet film and switches the light emitting section to a corresponding control circuit so that the printing density of the identification symbol is constant for the type of sheet film jl; It is equipped with a means for deleting a signal under the same control as the above-mentioned discrimination circuit, and a circuit for deleting the signal by switching the deleting signal with a switch, either in combination or alone. A display means for displaying information necessary for the work is provided, and the light intensity of the light emitting section, etc. can be automatically set based on the discrimination result determined by one discriminator.

〔Example〕

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

FIG. 1 is a block diagram showing an example of the present invention. This example shows a case where two types of sheet films, regular type and ortho type, having different relative sensitivities are used.

Reference numeral 1 denotes 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 inner film is a regular type or an orthotype. The regular type is "black".

The case is shown in which a "white" orthotype collection paper 2a is attached. In addition, for those with high relative sensitivity, the above-mentioned paper collection 2a
A "black" collection paper 2b is pasted for those with high relative sensitivity, and a "white" collection paper 2b for those with low relative sensitivity is pasted at a different position from the pasting position. That is, in the cassette 1, regular type and orthotype are determined by the paper collection 2a, and high and low sensitivity is determined by the single sheet 2b. It goes without saying that the specific colors of the two slips 2a and 2b may be colors other than those mentioned above, and display means other than the one slip may be employed.

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, when the display means 2 is "white", light from the light emitting element is reflected and an output is generated from the light receiving element, and when the display means 2 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 designates a light emitting unit for printing identification symbols (not shown) such as the patient's name, date of imaging, and area of imaging onto the sheet film. The document on which the image is written is illuminated with light, and the reflected light is imaged onto a sheet film via an appropriate means such as an optical system to perform printing.

Reference numerals 6a and 6b are control circuits for controlling the light emitting section 5 so that the printing density of the identification symbol remains constant regardless of the type of sheet film. The connection with the light emitting section 5 is switched by the switching circuit. The control circuit 6a is a regular type.

The control circuit 6b corresponds to the orthotype.

The control circuits 6a and 6b set the amount of light from the light emitting section 5 to a required value by differentiating the capacity of the built-in discharge capacitor or the aperture opening. The control circuit 6b is provided with a rotary switch 7 for finely adjusting the burning 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 when a discrimination signal is generated from the 2nd discrimination circuit 4, it switches to connect the light emitting section 5 to the control circuit 6b. When the light disappears, the switch is switched again to connect the light emitting section 5 and the control circuit 6a.

Further, the discrimination signal at this time is an orthotype and has low sensitivity. Therefore, collection 2 showing the film type
The identification symbol is output only when a is "white" and the paper collection 2b indicating sensitivity is "white", and once output, it continues until the printing of the identification symbol is completed.

In addition to the usage conditions described above, when using films whose relative sensitivity to one light source is between the ortho type and the regular type, it is necessary to manually switch the sensitivity so that the sensitivity paper does not have to become wet. Switch 9 to enable
It also has a. By sending a signal directly to the discrimination circuit 4 using the switch 9, the discrimination circuit makes a decision to ignore the water condensation in the sensitive water collection.

FIG. 2 shows an embodiment in which the identification mark printing apparatus according to the present invention is applied to an automatic sheet film loading and collecting apparatus.

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

The opening mechanism 12 operates and the magnet 13 forces the cassette 1 to open. The above-mentioned discriminator 3 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 sheet film detector 14 detects the presence or absence of sheet film 0. 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 is installed near the conveyance path of the conveyance device 17, and is configured to be able to set the amount of light, etc. based on the above-mentioned determination result, so that it can print on the sheet film being fed i11. The sheet film on which the 0wA symbol has been printed is sent to the receive magazine 18 and stored therein.

Next, place micro switch 1 in empty cassette 1.
The sheet film corresponding to the size of the cassette 1 detected by the supply magazines 20a and 20b is
, 20 c is selected l:) and the 1wi sending device 21
It is designed to be loaded via.

Next, the operation of this embodiment will be explained.

When the cassette/notebook 1 containing the photographed sheet film is mounted on the mounting section 10 of the automatic sheet film loading/recovering device, the discriminator 3 is activated. If the interior film is a calgular type, there is a "black" display means 2a on the surface of the cassette 1.
3, the light from the light emitting side of the discriminator 3 is absorbed and no output signal is generated from the light receiving side.

No discrimination signal is generated from the discrimination circuit 4, and the switching circuit 8 prints the identification symbol on the sheet film while the light emitting section 5 is connected to the regular type control circuit 6a.

Next, if the sheet film is orthotype,
Since the "white" display means 2a is attached to the surface of the cassette 1, the light from the light emitting side of the 3-discriminator 3 is reflected, and an output signal is generated from the light receiving side. At this time, the other discriminator 3
performs discrimination of the sensitive element paper 2b.

Moreover, if the sheet 2b is "black", the operation of the discriminator is the same as when discriminating the film type described above, and no output signal is generated.
Here, if the base paper 2b is "white", an output signal is generated from the light receiving side.

Therefore, output signals are generated from both the discriminators for the single slips 2a and 2b. 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 second light emitting section 5 is connected to the relay of the control circuit 6b. As a result, the amount of light or the aperture opening of the light emitting section 5 changes to a predetermined value, and the identification symbol is printed with the same density as in the case of a regular type sheet film.

At this time, fine adjustment of the burning density is performed by operating the rotary switch 7. However, if the orthotype film used has the same relative sensitivity to the light emitting source as the regular film, turning on the switch 9 will change the amount of light of the light emitting section 5 or the aperture opening.

When the printing of the film for the orthotype is completed, the discrimination signal of the discrimination circuit 4 disappears, the relay of the switching circuit 8 is switched, and the light emitting part 5 is switched back to the control circuit 6a for the regular type.
is connected to prepare for the primary 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, aperture, and irradiation time may be adjusted.Also, the rotary switch 7 may be provided not only in the control circuit 6b for the orthotype but also in the control circuit 6a. In the case of a regular type, it is also possible to make fine adjustments to the density. Further, the display means 2 and the discriminator 3 provided in the cassette 1 are not limited to the above embodiments, and may be of any configuration as long as they can distinguish the type of sheet film.
There may be more than one type.

〔Effect of the invention〕

As described above, the identification mark printing apparatus according to the present invention is a discriminator for determining whether or not an orthofilm equivalent to a regular type film is used.

A discrimination circuit that receives the output of the discriminator and outputs a discrimination signal, a light emitting section for printing an identification symbol on the sheet film, and a light emitting section for printing an identification symbol on the sheet film, and a discriminator circuit that is provided according to the type of sheet film. a switching circuit for switching the light emitting section to a corresponding control circuit so that the printed density of the identification symbol remains constant; and means for deleting the switching signal through control similar to that of the discrimination circuit.

Since it is characterized by a circuit that uses a deletion means that changes the deletion signal with a switch or performs it alone, the light intensity of the light emitting part for printing the m-code symbol is automatically adjusted to 1wA according to the type of sheet film. Regardless of the type of film, the printing of the different symbols is efficiently performed at a constant i degree.

Further, according to the present invention, once the initial setting of the printing density for the ortho film is made, all the work of determining the type of sheet film and adjusting the density is done automatically, which not only frees the operator from these tasks. Various excellent effects can be expected, such as eliminating errors in discrimination and adjustment that would otherwise occur when done by one person.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a block diagram, and FIG. 2 is a cross-sectional view showing an automatic sheet film loading and recovery apparatus to which the present invention is applied. 1 Cassette 2a, 2b-Display means 3-Discrimination means 4-Discrimination circuit 5-Light emitting section 6a, 6b-Control circuit 7-Rotary switch 8-Switching circuit 9 - Switching switch Patent applicant Konishiroku Photo Industry Co., Ltd. No. 1 figure

Claims (1)

[Claims] A discriminator that discriminates the types of sheet films with different characteristics, a discriminator circuit that receives the output of the discriminator and outputs a discrimination signal, a light emitting unit that prints an identification symbol on the sheet film, and the type of the sheet film. a switching circuit that switches the light emitting section to a corresponding control circuit so that the printing density of the identification symbol is constant for different types of sheet films; and a switching circuit that transmits the switching signal to the discrimination circuit. An identification symbol printing device comprising a circuit for deleting a signal under similar control and a circuit for performing the deletion means for switching the deletion signal by a switch, either in combination or alone.