JPS62248650A - Laser recorder - Google Patents

Abstract

PURPOSE:To prevent an excess heat being applied to film when a thermal development process is not required by arranging an idling roller between a pair of guide rollers set at both ends of a heating roller, and enabling film guided between the guide rollers to contact and attach/detach itself to and from the heating roller through energization of the film. CONSTITUTION:Film 100 receives laser beam projected from an image information recorder 5 on the photosensitizer layer formed on the front surface of the film while being moved at constant speed with the back of the film pressed against the external circumference of the main drive roller 41. Then the film has the back contacting a heating roller 60 between the first and second guide rollers 61, 62, and the front photosensitizer-layer thermally developed to form an image. After this, the film is taken up by a winding reel 31 after passing at the position of a density detector 9. When the film 100 stops movement and thermal development, an idling roller 63a rocks, causing the film to detach itself from the heating roller 60 through energization of the film. Thus the film which stops movement because of the detachment does not receive heat transmitted from the heating roller 60 because the film is not in contact with the roller 60.

Description

[Detailed description of the invention] [Industrial application field 1 The present invention relates to a laser recording device.

Specifically, for the heat development section that heats the film by contacting the back side of the heat developable film after being irradiated with laser light from the laser optical system, the film is removed from the heat development section during times other than heat development, and , relates to a sheet 1f recording device that can bring the film into contact with a heat developing section during heat development.

[Conventional Technique #4] Conventional laser recording devices irradiate laser light in the main scanning direction (X-axis direction) and sub-scanning direction (y-axis direction) onto a heat-developable film F that is stopped at a fixed position. , its invasion, sea 1
A so-called intermittent heat development method is known in which the irradiated area is heat-developed discontinuously.

[Problems to be Solved by the Invention] The present invention is fundamentally different from the above-mentioned conventional rape recording apparatus, and relates to a type of laser recording apparatus in which laser irradiation and thermal development are performed continuously.

That is, the laser recording device of the present invention irradiates a heat-developable film with laser light in the main scanning direction (X-axis direction), and also irradiates the film with the laser light in the sub-scanning direction (Y-axis direction).
This relates to a laser recording device configured to drive at a constant speed and continuously heat and thermally develop the film after being irradiated with laser light.

According to the configuration of the laser recording device provided by the present invention, the heat-developable film after being irradiated with laser light is always in continuous contact with the heat-developing section. For this reason, if the movement of the film is stopped while it is in contact with the thermal development section, excessive heat may be applied to a portion of the film, and the desired phenomenon may not occur.

In consideration of this point, the present invention provides a laser recording device in which the film that is in continuous contact with the heat development section is separated from the heat development section when there is no need for heat development, thereby preventing excessive heat from being applied to the film. The purpose is to

[Means for Solving the Problems] The laser recording device of the present invention has a structure in which the laser recording device of the present invention has a structure in which there is a gap between a housing, a film exposed portion of a roll-shaped heat-developable film disposed in a lower part of the housing, and the film feeding portion. a heat-developed film accommodating section disposed at the upper part of the housing to form a vertically elongated film running path; and a film running path formed between the film feeding section and the heat-developed film accommodating section. The main drive unit is disposed in the middle part of the housing and includes a main drive unit that drives the film at a constant speed, and a laser optical system, and irradiates laser light in the width direction of the film that is held and driven by the main unit #h unit. The image information recording unit, the main cough drive device, and the fever l! The thermal developing section is disposed facing the film running path in the imaged film storage section and thermally develops the image information recorded on the film in the image information recording section, and the thermal development section A heating roller having an outer peripheral surface that is heated by contacting the film, a pair of guide rollers disposed on both sides of the heating roller, and a pair of guide rollers located between the pair of guide rollers. (b) characterized in that it comprises a swinging roller which urges the film guided between the rollers from one side to bring the film into contact with and away from the heating roller.

In the laser recording device 8 of the present invention, the film irradiated with laser light from the laser optical system of the image information recording section is brought into contact with a heat block (11 sections), and the film is not thermally developed except during thermal development. This prevents the film from stopping in contact with the heat development section outside the heat development section, and prevents the film from being excessively heated by the heat development section. Predetermined development is always possible without any problems.

The laser recording device of the present invention includes a housing, a film feed section, a heat-developed film storage section, a main drive device, an image information recording section, and a heat development section.

A chamber Ill is formed in a part of the housing, and a film feeding section, a heat developing type film storage section, a main drive unit, an image information recording section, and a heat developing section are installed in the dark room.
I'm watching over you.

The film feeding section is hot! It has a mechanism for loading a film cassette containing a roll of lf1 type film, a roller for sending out undeveloped film, a main drive device for continuously hoisting undeveloped film from the film cassette, and image information recording. This is something that is left to the department.

The film storage section of the thermal development section is installed at the end of the film travel path. The heat development section houses a retaining roll supported in a housing for winding the film heat-developed in the heat development section into a roll, a cutter for cutting the film as necessary, and the film cut by the cutter. The tray outside the housing, the moving direction switching device and the guide roller for guiding the film to either the tray or the stripping roll can be omitted.

The main door VJ device is for driving the film at a low and constant speed. The main drive device is disposed in the middle part of the housing on the film travel path 11 formed between the film feed section and the film storage section of the thermal development section.

The image information recording section includes a Rade optical system, and irradiates a laser beam in 11 directions on a film held and driven by a main drive device to form a latent image on a photosensitive agent layer on the film surface. As the laser optical system, a configuration consisting of helium neon gas laser generators J3 and A, an O modulator (an acousto-optic modulator that turns on and off the laser beam), a rotating polygon mirror, and a lens 8r can be used. The laser to be used is not limited to a helium-neon gas laser, but can be used as long as it outputs a wavelength within the film's spectral sensitivity band.

The thermal development section is a device that contacts the film that has been irradiated with laser light in the image information recording section and heats it to thermally color the photosensitive agent layer on the film surface. The thermal mass IIt section is disposed facing the film running path between the main section Ill device and the heat developing section film storage section, and thermally develops the image information recorded on the film in the image information recording section. The heat development section includes a heating roller and an outer peripheral portion where the film is brought into contact and heated.
Heating [1-A pair of guide rollers arranged on both sides of the
The roller 1110 presses the film guided between the rollers from one side to bring the film into contact with and release from the heating roller. The pair of guide rollers may be simply guide rollers that rotate in a driven manner.

In addition, each person tries to pinch and guide the film itself,
It can also be driven. In the case of using pinch rollers, it is desirable that one of the pair of guide rollers, which is disposed closer to the film in the thermal development section than the pair of guide rollers, weakens the pinching force of the idle roller that pinches the film. These pair of guide rollers are connected to the above-mentioned ii! ii. The film that is irradiated with laser light in the image information recording section and driven at a constant speed by the main drive device is guided to a heating roller, and the film that has been in contact with the heating roller and has been thermally developed is transferred to a hot mass fII.
F! 4 to the film storage section.

The heating roller can be a driver that rotates in contact with the film at the same speed of travel as the film.

The temperature of the heating roller in contact with the film is adjusted to maintain the current temperature of the film. As a result, the back surface of the film is heated at a constant am and the contact portion of the l-ra contacts the circle at a constant time. The heat from the heating roller causes the photosensitive layer on the surface of the film to thermally color only the portions irradiated with the laser beam of the image information recording section, or conversely, only the portions that were not irradiated, creating a black or colored image. can be recorded.

The swinging roller may be disposed on the same side of the film as the heating roller, and the swinging roller swings to urge the film to the other side, thereby separating the film from the heating roller. In this case, when the oscillating roller presses the film, it presses the back side of the film that does not have a heat-colored photosensitive layer, so it does not come into contact with the photosensitive layer on the front side of the film, so even if it is pressed strongly, the There is no damage to the image information recorded on the upper photosensitive agent layer.

The swinging roller is disposed on the opposite side of the film from the heating roller, and the swinging roller swings to urge the film toward the heating roller, thereby bringing the film into contact with the heating roller.

In this case, the film can be separated from the heating roller by n1 by neutralizing the urging force of the swing IF1 roller which urges the heating roller side.

In addition, the swinging roller can be held at a position where the film is brought into contact with the heating roller and at a position where the film is released. or,
Swinging [1-Ra swings and brings the film into contact with the heating roller,
Mechanisms such as a solenoid, a link, and a lever operated by the application N11E can be used as a driving source for detachment. Furthermore, it is desirable that the swinging roller be able to swing in a direction to separate the film from the thermal development section when the current applied to the solenoid is cut off.

[Operations and Effects of the Invention] The Sheet 11 recording device of the present invention has the following characteristics: 1. The thermal development section includes a heating roller having an outer circumferential surface on which the film comes into contact and is heated, and a pair of heating rollers disposed on both sides of the heating roller. A pair of guide rollers located in the guide roller and a pair of guide rollers [1
The heating roller has a structure consisting of a one-way roller that urges the film guided between the rollers from one side to bring the film into contact with and release from the heating roller. Therefore, during thermal development, the film moves while being in contact with the heating roller, and the image information recorded on the photosensitive agent layer on the film can be thermally developed in the image information recording section. In addition, the film separates from the heating roller during thermal development other than v1. This prevents the film from being developed without moving.

In addition, when the film stops running, the swinging roller swings, and the film can be moved to a lower position away from the high-temperature heating roller, and the high-temperature air near the heating roller escapes upwards, so that the film cannot be unused. It does not adversely affect the film in the developing state.

Furthermore, in the case of the present invention, since the film can be brought into contact with and released from the heating roller by the oscillating operation of only the oscillating roller, a special latch ( The position of the film relative to the thermal development station without using a one-way clutch or a reversing clutch? It becomes possible to freely switch between flj and Q.

[Example] (First Example) A first example of the laser recording apparatus of the present invention will be described based on FIGS. 1, 2, 3, and 4.

The radar recording device according to the first embodiment of the present invention has a housing 1
, a film feed section 2 , a heat development section film storage section 3 , a main drive device 4 , an image information recording section 5 , and a heat development section 6 .

A film feeding section 2 disposed at the lower part of the housing 1 is loaded with a cassette containing a roll of heat-developable film 100. Roll state IJ! As the image-forming film (hereinafter referred to as film) 100, for example, a 16-1 dry silver salt film (Kodak Company, Dashi Magic Film, trademark) can be used.

The film storage section 3 of the thermal development section is arranged at the upper part of the housing 1 so as to form a vertically elongated film running path between it and the exposed film section 2 . The heat developing unit film storage section 3 includes a take-up reel 31 disposed in the upper part of the housing 1 and a cut film tray 32 disposed outside the housing 1. Also, the film is not transported to either the take-up reel 31 or the tray 32 using a beheading mechanism.
I! t (not shown) can be arbitrarily selected.

Therefore, when a roll film is created for each use of the heat development section film, the film is wound up by the take-up reel 31, and when a cut film is required, it is cut by the cutter 33. Films are accommodated in the tray 32.

The main part vI device 4 is for driving the film 100 at a constant speed, and includes a film feeding section 2 and a heat developing section film storage section 31.
! It is disposed in the middle part of the housing 1 on the film running path 10 formed in the shape of J.

The main drive device 24 includes a main drive roller 4 driven by a stepping motor, a first pressing row 542 that presses the film 100 against the outer peripheral surface of the main drive roller 41, and a second
It is composed of a pressing roller 43. A first film deflection detection section 7 is provided on the film running path 10 on the film feeding section 2 side of the main drive device 4 and on the film storage section 3 side of the thermal development section.
A second film sag detection device W18 is provided. The first film sag detection device 7 and the second detection device 8 are connected to the base 8
Infrared light emitting diode 71.8 arranged on a, 7a
1 and light receiving elements 72 and 82.

The image information recording section 5 includes a helium/neon gas laser generator 51, an O/A modulator 52, a rotating polygon mirror 53, and a lens group 5.
4, the main layer gJJ device 4
A laser beam is irradiated in the width direction of the film 100 that is held and driven.

The heat development section 6 includes a main drive device 4 and a heat development section film storage section 3.
It is arranged facing the film running path 10 between the film 100 and the film 100, and thermally develops the image information recorded on the film 100 by the image information recording section 5.

The thermal development section 6 includes a heating roller 60 having an outer circumferential surface 6a against which the film 100 comes into contact and is heated, and a pair of first and second guide rollers 61.6 disposed on both sides of the heating roller 60.
2 and a pair of first and second guide rollers 61.62, and urges the film 100 guided between the pair of first and second guide rollers 61.62 from one side. It is composed of a shaker 19o-ra 63a that heats the film 100 and brings it into contact with the 1-ra 60 and 11111 removes the film 100. The first guide roller 61 includes a small-diameter driving row 5611 that is connected to the DC motor, and a large-diameter driven roller 612 that presses the film 100 against the driving row 5611.

The second guide roller 62 includes a small-diameter drive roller 621 that is linked to a DC motor, and a drive roller 621 that moves the film 100 to the drive roller 621.
A large-diameter follower [1-ra 622] that is pressed against and follows. The swinging roller 63a heats the film 100 [
It is arranged on the 1-ra 60 and 111- sides. The structure is such that the film 100 is separated from the heating roller 60 by the swinging roller 63-a swinging and urging the film 100 to the other side.

Also, as a deterrent for swinging the swinging roller 63a,
A solenoid that is activated by turning on and off a current can be used in combination with the swinging roller 63a.

The solenoid holds the swinging roller 63 at a position away from the back surface of the film 100 when the current is ON, and acts on the swinging roller 63a when the current is OFF. In addition, the solenoid urges the swinging roller 63 in a direction to separate the film 100 from the roller 60. or,
The film 100 is kept in a tensioned state in advance by the tension between the first and second guide rollers 61 and 62 during thermal development,
It is pressed so that the back side is in contact with the heating roller 60. Further, the swinging roller 63a, which is disposed on the same side as the heating roller 60, is located at a distant position without applying pressure to the back surface of the film 100 during thermal development of the film 100. As a result, the film 100 is kept under tension by the pair of first and second guide rollers 61 and 62va arranged on both sides of the heating roller 60. Further, the image information is brought into contact with the heating roller 60 between the pair of first and second guide rollers 61 and 62, receives the heat necessary for thermal development from the heating roller 560, and is recorded on the film 100 by the image information recording section 5. The uniform information obtained can be thermally developed by thermal coloring. In addition, the thermal development section 6 and the thermal mass m
A density detector 9 for detecting the density of the information image thermally developed on the film 100 is disposed on the film running path 10 between the film accommodating section 3 and the film 100 .

The concentration detection 159 includes a light emitting diode 91 and a light receiving element 92 installed on both sides of the film 100, respectively.

Laser recording 4 of the first embodiment configured as above! According to the above, the film 100 is driven at a constant speed by the main drive device fi4, and while moving with the back side of the film 100 pressed against the outer peripheral surface of the main drive roller 41, an image information recording section is formed on the photosensitive layer on the front side. 5 receives the laser beam irradiation, and is guided by the first guide 0-561 and the second guide roller 62 and moves vJ'! I will. Katsu film 1
00, the back surface is brought into contact with the heating roller 60 by the first and second guide rollers 61 and 62, and the photosensitive agent layer on the front surface is thermally developed.

After that, after passing the concentration detection position 1i9, the winding loop 3
1.

When the movement and thermal development of the film 100 are stopped here, the swinging roller 63a swings from the position shown by the third solid line and the broken line in FIG. 4 to the position shown by the solid line in FIG. is released from the heating roller 60 by energizing it.

As a result, the film 100 that has stopped moving is not in contact with the heating roller 60, so that the high heat from the heating roller 560 is not transferred. Therefore, when the °C film 100 is stopped, it is not exposed to high heat in one place, and the problem of being affected by heat can be eliminated. Also, the swinging roller 6
If the film 3a is returned from the position shown by the solid line in FIG. 4 to the position not shown by the broken line and the film 100 is moved with it in contact with the heating roller 60, thermal development can be performed again as before.

(Second Embodiment) Next, a second embodiment of the lane recording apparatus of the present invention will be described with reference to FIGS. 5 and 6.

Note that the explanation of the same configuration and operation as in the first embodiment will be omitted.

In the case of the second embodiment, the swinging roller 63b is
0, the swinging roller 63b swings and urges the film 100 toward the heating roller 60 to move the film 100 toward the heating roller 60.
It is configured so that it comes into contact with the. Further, the film 100 is set in advance so that the first and second id rollers 61 and 62 keep slack in the dark when the film 100 is not used for heating 81, so that the back surface of the film 100 does not come into contact with the heating roller 60.

Therefore, the film 100 is stored in the image information recording section 5.
When the image information recorded on the film 10 is subjected to a thermal phenomenon, the swinging roller 63b swings as shown in FIG.
0 is moved while in contact with the heating roller 560, the high heat from the heating roller 60 is transmitted from the back side of the film 100, and the image information recorded on the photosensitive agent layer on the film 100 in the information recording section 5 is transferred to the photosensitive layer. Thermal development is performed by thermally coloring the agent layer. In order to stop heat development from this state, film 1
00 and heating [1-When the operation of the roller 60 is stopped, the heating roller 6 against the film 100 of the swinging roller 63b
If the bias toward the 0 side is interrupted, the swinging roller 63b moves from the position shown by the solid line in FIG. 5 to the position shown by the broken line in FIG. 5 or the position shown by the solid line in FIG.
moves due to its own weight, moves from the heating roller 60, and is located at a position where it is not affected by the heat from the heating roller 60. Therefore, in this case, film 10
0 is not affected by high fever.

(Modification of the second embodiment) FIGS. 7 and 8 show a modification of the second embodiment.

In the case of this modification, heating 0-5 for film 100
This configuration uses a swinging roller 563b arranged on the opposite side of the swinging roller 60 and a guide 631 arranged on the opposite side of the swinging roller 63b with respect to the film 100 as a pair. In this case, the swinging roller 63b and the guide 631 swing simultaneously in the same direction.

That is, the heating roller is maintained at a constant distance that does not impede the movement of the film 100 in the film running direction, and the direction or rotation of the swinging roller 63b urges the film 100 toward the heating roller 60 side. l1IIlf11 from 60
When the film 100 is swung in the direction of
0 or in the direction of separation from the heating roller 60.

[Brief explanation of drawings]

FIG. 1 is a perspective view explaining the present invention in detail, FIG. 2 is a front view showing the configuration of the present invention, and FIGS. 3 and 4 are front views showing essential parts of one embodiment of the present invention. . Figures 5 and 6
The figure is a front view showing main parts of a second embodiment of the present invention. 7 and 8 are front views showing a modification of the second embodiment of the present invention. 1... Housing 2... Film feeding section 3.
...Thermal development section film storage section 4...Main part e-packing W1 5...Image information recording section 6.
...Heat developing section 60...Heating roller 61.62
...First and second guide rollers 63a, 63b...Swinging roller patent applicant Minolta Camera Co., Ltd. Agent Japan Seimitsu Kogyo Co., Ltd. Ben■! Hirotoshi Okawa Patent Attorney Akio Maruyama Figure 3 Figure 4

Claims (3)

[Claims] (1) A housing, a film feeding section for a roll of heat-developable film disposed at a lower portion of the housing, and a film feeding section provided at an upper portion of the housing to form a vertically elongated film running path between the film feeding section and the film feeding section. a heat-developed film accommodating section disposed in the middle section of the housing on the film running path formed between the film feeding section and the heat-developed film accommodating section, and driving the film at a constant speed; an image information recording section that includes a laser optical system and irradiates a laser beam in the width direction of the film held and driven by the main drive device; and a heat developing section which is disposed facing the film running path and thermally develops the image information recorded on the film in the image information recording section, and the heat developing section is arranged so as to be in contact with the film. A heating roller having an outer peripheral surface to be heated, and rollers arranged on both sides of the heating roller.
a pair of guide rollers, and an oscillating roller that is located between the pair of guide rollers and urges the film guided between the pair of guide rollers from one side to bring the film into contact with and release from the heating roller. A laser recording device comprising: (2) The swinging roller is arranged on the same side of the film as the heating roller, and the swinging roller swings to urge the film to the other side, thereby separating the film from the heating roller. A laser recording device according to claim 1. (3) The swinging roller is placed on the opposite side of the film from the heating roller, and the swinging roller swings to urge the film toward the heating roller, thereby bringing the film into contact with the heating roller. A laser recording apparatus according to claim 1, wherein the laser recording apparatus is configured to perform the following steps.