JPS63242563A - Portable light-irradiation device - Google Patents

Abstract

PURPOSE:To enable required image information to be easily copied, regenerated, and colored with a desired size and layout, by a method wherein, in the state that a thermosensitive body having light transmission properties is laid over an original plate, a title device radiates light only to a required position of the original plate while depressing down the thermosensitive body to bring it into pressure contact with the original plate, thereby heating an image area. CONSTITUTION:A portable light-irradiation device 3 is so used as to trace horizontally, continuously, and depressingly a required image area of an original plate 1 through a thermosensitive body 2 or depress down vertically only a desired position. If, in a light-irradiated part of an original plate 1, for example, an image area 1a to be a black radiation source absorbs a light energy to generate heat, the thermosensitive body 2 is subjected to heat efficiently because it is in pressure contact with this heated image area 1b. Then, a coloring layer 2a is softened to adhere to the heated image area 1b, whereby the required image area is colored. The thermosensitive body 2 consists of the coloring layer 2a of the combination of dye, pigment, wax, resin, and others and a substrate 2b of polyester film, etc. supporting the coloring layer 2a.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention is a portable light irradiation device for copying image information such as printed matter onto a recording medium and adding color to image information.

[Prior art]

When copying image information from printed matter, it is common to use electrostatic copying devices or thermal copying devices, but conventional copying devices are relatively thick (and heavy, so they are far from easy to use at hand). Recently, portable electrostatic copying machines have become available on the market at low prices, but they are limited in price and size, so not everyone can use them easily.Also, it is easy to make copies when you want to make copies. A product that combines an image scanner and a thermal printer has been commercialized as a portable copying device and is attracting attention, but since the width of the recording medium that can be copied is limited to the width of the product, it is difficult to consider its use as a portable copying device. I feel that something is missing in that it is not possible to make a wide copy width, and that copies can only be made at a constant width.In addition to the above-mentioned drawbacks, these conventional copying devices are unable to copy only the desired image information of printed matter. It is not possible to easily select and copy onto a recording medium (and it is even more difficult and expensive to overlap and copy only the desired information from several sheets of printed material onto a single recording medium). The only option is to use a copying device.In order to satisfy this requirement, a portable copying device (product name: Handy Copy Z-HCI) has been released that features a pen-type image scanner and a printer separated. The disadvantage is that the copying width of the recording medium is limited by the size of the recording medium, and a significant reduction in price cannot be expected due to the structure. The idea of copying the image information of a printed matter onto a recording medium by using this technology has been applied for a long time, such as in Patent Publication 14241-1982, Publication 20299-1982, and Publication of Japanese Patent Publication 219084-1984. Unfortunately, at present, there has been no invention or commercialization that is portable and practical enough to satisfy market needs. An inexpensive device for copying, reproducing, and coloring according to size and layout is awaited.

〔the purpose〕

The present invention allows only the image area of a desired part of an original plate having an image area that absorbs light rays, such as a printed matter, to be recorded on a recording medium of a desired size in a desired layout, or only the desired image area of an original plate as desired. The purpose of the present invention is to provide a portable light irradiation device that can be colored in different colors.

〔composition〕

Chemical and physical changes caused by heat are applied to the original plate, which consists of an image area, such as a black printed area, which absorbs light energy relatively well, and a non-image area, such as a blank area, which absorbs less light energy than the image area. It has an element of change,
In addition, in a state in which heat-sensitive reactants that transmit light are stacked, heat is generated in a desired image area by irradiating the light rays while pressing the heat-sensitive reactants only on necessary parts of the original plate and pressing the heat-sensitive reactants against the original plate, The above object is achieved by using the heat to change the heat-sensitive reactant that comes into contact with it.

Hereinafter, the present invention will be specifically explained based on Examples. FIG. 1 is a schematic explanatory diagram of an embodiment of the present invention. 1 is
The original version is a printed matter such as a book, a copy of Xerox paper, or a handwritten notebook, and information consisting of an image area 1a such as characters and figures is recorded therein. 2 is a thermosensitive reactant containing a thermally variable element. Reference numeral 3 is a handy type portable light irradiation device, and the portable light irradiation device 3 is manually pressed against the heat-sensitive reactant 2 so that the heat-sensitive reactant 2 is pressed against the original plate 1 to generate a light beam. The portable light irradiation device 3 can be used by tracing the heat-sensitive reactant 2 in the desired image area of the original plate 1 while continuously pressing it in the horizontal direction of arrow A, or by tracing only the desired area in the vertical direction without tracing. It is also used by pressing it in a stamp style. Since the light-irradiated portion of the original plate I is in a state where it becomes, for example, a black radiation source, it receives heat efficiently, and the elements of the heat-sensitive reactor 2 that are affected by the heat change depending on the heat-generating image area 1b. Here, since the portable light irradiation device 3 is a handy type, the area that the portable light irradiation device 3 presses against the heat-sensitive reactant 2 is relatively small, making it easy to obtain a uniform crimped state, and the effect of light irradiation is obtained. A small area has the advantage that the image area 1a can be copied or colored in small area units. In addition, the portable light irradiation device 3 is a handy type and has a high degree of flexibility, and can be used for the original plate 1 and the heat-sensitive reactor 2.
Image area 1a at any position regardless of the size of
It has the advantage that the size of the original plate 1 and the heat-sensitive reactant 2 can be any size and there is no limitation on the size. The master plate 1 and the heat-sensitive reactant 2 can be easily exchanged for other master plates or heat-sensitive reactants due to their construction, such as one master plate 1 and a plurality of heat-sensitive reactants or one heat-sensitive reactant 2 and a plurality of master plates. The combination can be changed freely depending on the intended use. The heat-sensitive reactor 2 of the embodiment shown in FIG. 1 consists of a colored layer 2a made of a combination of dyes, pigments, waxes, resins, etc. and a support 2b such as a polyester film that supports the colored layer 2a, and is in a pressed state. The colored layer 2a is softened by the heat of the heated image area 1b and adheres to the heated image area 1b, thereby coloring the desired image area. Even if a release layer is provided between the colored layer 2a and the support 2b, the coloring layer 2a can be attached to the heat-generating image area 1b if the bonding force in the release layer is weakened by light rays or heat in the image area 1b. Can be done. Further, even if the support 2b, the colored layer 2a, and the adhesive layer are arranged in this order, the adhesive layer adheres to the heat-generating image area 1b in a pressed state due to heat, and overcomes the bonding force between the support 2b and the colored layer 2a to form a heat-generating image. Area 1b can be colored. The thermosensitive reactant 2 may be a wide sheet or a narrow tape. In the case of a wide sheet, it may be difficult to distinguish the image area 1a on the original plate 1 due to the colored layer 2a, but this is due to the area 2C where the colored layer 2a is located, as in the example of the thermosensitive reactor in FIG. and transparent portions 2d without the colored layer 2a are arranged alternately, and information on the image area 1a of the original plate 1 can be obtained from the portion 2d without the colored layer 2a. Here, the heat-sensitive reactant 2 needs to transmit light without absorbing too much light so as to satisfy the condition that the colored layer 2a adheres to the heated image area 1b only after the image area 1a generates heat due to light irradiation. . That is, the colored layer 2 is absorbed by the energy absorbed when the light beam passes through the colored layer etc.
a does not adhere to the original plate 1 regardless of the image area 1a of the original plate 1 that is irradiated with light, and it is not until the heat generation of the image area 1a due to the light irradiation is added that the colored layer 2a reaches an energy level that adheres to the heated image area 1b. It means to reach. Furthermore, depending on the colored layer 2a of the thermosensitive reactant 2, it may be transferred and adhered due to light absorption regardless of the image area irradiated with light. This problem can be solved by providing a filter that absorbs infrared rays and transmits infrared rays. In this way, the present invention provides a portable light irradiation device 3 that allows anyone to easily edit an original plate, which has conventionally been black and white information, into color information only in desired areas. Further, since the colored layer 2a adheres only to the exothermic image area 1b, the heat-sensitive reactor 2 copies the desired image area irradiated with light in the form of omission of the colored layer 2a, and if the original plate 1 is smeared, the image cannot be reproduced. It can also be referred to as an example of area duplication.

Figures 3 to 5 are examples of copying desired image areas of master 1 onto a heat-sensitive reactor. The thermosensitive reactant 4 in FIG.
Image area 1 that generates heat due to light irradiation by portable light irradiation device 3
It consists of a support sheet 4b coated with a thermochromic material 4a that develops color when exposed to heat b, and the color development state of the thermochromic material 4a in a pressed state changes depending on the heat generation state of the image area 1b, forming a desired image on the original plate 1. The area can be copied onto a thermosensitive reactor 4 which is a recording medium. 4C is a colored portion where the thermochromic body 4a receives heat. Here, the support sheet 4b is made of, for example, paper or a synthetic resin sheet that transmits light.

The heat-sensitive reactor 5 shown in FIG. 4 is composed of a protective film layer 5a, a colored layer 5b, and a recording sheet 5C. Even if the recording sheet 5C of the heat-sensitive reactor 5 that is strongly adhered to the recording sheet 5C is peeled off, only the strongly adhered colored layer 5b is peeled off together with the other colored layers 5b and the protective film layer 5a.
remains attached to. Only the desired image area irradiated with light is coated with the colored layer 5 on the recording sheet 5C of the thermosensitive reactant 5.
It is copied in the form of attachment of b. On the other hand, on the side of the protective film layer 5a, only the desired image area is copied in the form of omission of the colored layer 5b. The protective film layer 5a plays a role of preventing the colored layer 5b from adhering to the original plate 1 and contaminating it and also holding the colored layer 5b, and is preferably heat resistant and thin. Due to the structure of the heat-sensitive reactor 5, the recording layer 5c may be integrated with the colored layer 5b, or may be separated as a separate body, as long as they can be overlapped during use. A user prepares paper or a synthetic resin sheet for copying as a substitute for the recording sheet 5C, and applies the colored layer 5b.
If you want to use it over the

The prepared sheet is considered to be the recording sheet 5C.

Here, if you want to copy image information in the form of omission of the colored layer 5b on the recording sheet 5C, hold the colored layer 5b on the recording sheet 5c and add an adhesive layer to the protective film layer 5a side of the colored layer 5b. If provided, a colored layer 5b corresponding to the heated image area 1b
can be strongly adhered to the protective film layer 5a and removed.

The thermosensitive reactor 6 shown in FIG. 5 is an example of a protective film layer 6a and a heat raising method. The thermal sublimation layer 6b is made of a sublimable dye 6d, etc., and generates sublimation vapor in an amount corresponding to the amount of heat generated in the image area 1b on the original plate 1 when irradiated with light, thereby creating a recording material with excellent dye adsorption properties and heat resistance. It is possible to adsorb onto the sheet 6C and copy a desired image area onto the recording medium sheet 6c in analog gradation. Furthermore, it is clear that analog gradation copying can be achieved in the same manner even if the chemical component sublimated by heat from the thermal sublimation layer 6b undergoes a chemical reaction with the component coated on the recording medium sheet 6C to produce color. . As another example of a heat-sensitive reactant, if the heat-sensitive reactant is made of particles of heat-shrinkable synthetic resin that exhibits oleophobic properties and a thin porous body that holds the particles in a uniformly dispersed state, it is possible to In response to the heating of the image area by the heat treatment, the particles undergo thermal contraction, thereby replicating the desired image area in the form of a through-hole in the heat-sensitive reactor. When the heat-sensitive reactant is placed on a recording material such as paper and an ink roller or the like is used to press and trace the oil-based ink onto the heat-sensitive reactor, the oil-based ink passes through the through-holes and is applied to the recording material according to the information on the through-holes. It sticks to the surface. Since the heat-sensitive reactant has an oleophobic component, the oil-based ink does not easily blend into the heat-sensitive reactant, and sharp images can be printed. Furthermore, when using a water-based ink, it is clear that the same effect can be obtained by using heat-shrinkable synthetic resin particles that exhibit hydrophobicity.

FIG. 6 is a schematic explanatory diagram of an embodiment of the portable light irradiation device of the present invention. Reference numeral 3 denotes a hand-held portable light irradiation device, which includes a light source 3a that generates a light beam, a power supply means 3b, a light reflector 3C for effectively utilizing the light beam, and a light transmitting body that is used in press contact with a heat-sensitive reactor. 3d. 3b
is a power supply means such as a storage battery, and has a power supply control circuit as required. The light transmitting body 3d, the light source 3a, the light reflecting body 3C1, and the power source means 3b are arranged in the vertical direction in this order to make it compact and easy to operate by hand. 3f is a light irradiation switch, which is placed on the side of the portable light irradiation device 3 so that it can be easily controlled with a fingertip. By turning on 3f, electric energy is supplied to the light source 3a from the power supply means 3b.

While the light irradiation switch 3f is turned on by hand, light may be irradiated continuously or intermittently.

Alternatively, the light may be irradiated only for a certain period of time, such as by flashing each time the light is turned on. If the light is irradiated towards people's eyes, it may cause damage to the eyes, so while the portable light irradiation device 3 is pressed against the heat-sensitive reactor 3g, turn on the light irradiation switch 3f with your fingertip. It is a good idea to irradiate it with light for the first time. With such a configuration, the light irradiation switch 3f for portable devices may come into contact with something and turn on, causing the battery to run out before you know it, or the light may irradiate onto other objects, damaging the quality. problems can be prevented. Moreover, since the light is irradiated once the crimped state is secured by pressing, more stable coloring and copying can be obtained. In addition, the light irradiation switch 3f
Instead, the same effect can be obtained by providing a push-type light irradiation switch that connects electrical wiring only by pushing against the heat-sensitive reactor 3g. 3C is a light reflector, and although it is a single component in the example, the same effect can be obtained by coating or plating the light source 3a or the support frame of the light source 3a, etc. it is obvious. 3d is a light transmitting body and is supported integrally with or detachably from the frame of the portable light irradiation device 3. 3e is a light transmitting part of the light transmitting body 3d, which is preferably made of glass, synthetic resin, etc., and has excellent heat resistance and light resistance. Further, the shape of the light transmitting portion 3e is a rectangle in order to uniformly irradiate the image area with light. Since the portable light irradiation device of the embodiment shown in FIG. 6 is a handy type, the active area for light irradiation is small, so there is an advantage that the amount of light irradiation is small and the performance requirements for the light source 3a etc. can be relaxed. In addition, the original plate 1 and the thermosensitive reactant 3
Another advantage is that copy quality defects caused by rapid thermal expansion of air, moisture, etc. due to light irradiation at the crimping part g are less likely to occur as the area of the crimping part is smaller. light source 3
If a converging lens is provided to converge the light rays from a and the light reflector 3C onto the light transmitting part 3e, it can be expected that the energy will be reduced, and the burden on the light source 3a etc. will be further reduced. Low energy consumption is an essential element for portable devices, and can improve operability and practicality as an added value. Thermal reactants are usually thin, in order to effectively utilize the heat in the image area through light transmission and absorption, and to minimize the cost of the heat-sensitive reactor, so it is easy to trace while pressing the portable light irradiation device against it. For heat-sensitive reactants that would be stretched due to insufficient strength if moved by hand, it is recommended to rotatably support the light-transmitting member so that the light-transmitting member can roll on the heat-sensitive reactor without sliding relative to the heat-sensitive reactor. Good coloring and copying can be obtained without distortion. In this case, the light transmitting body may be belt-shaped. In addition, for a narrow roll-shaped heat-sensitive reactant such as a heat-sensitive reactant for coloring an original plate, if it is removably supported in a cassette type on a portable light irradiation device, the heat-sensitive reactor has a colored layer of the desired color. It is convenient because it can be easily replaced with the body cassette. Furthermore, since the thermosensitive reactant is housed in a cassette, it will not get damaged or get your hands dirty when being carried around. Even in the case of a heat-sensitive reactant for copying an image area of an original plate, if the narrow convergence of the heat-sensitive reactant is acceptable, it can be similarly rolled and stored in a cassette. At this time, if the light transmitting body is rotatably supported by the portable light irradiation device, the rolled heat-sensitive reactant can be drawn out from the cassette and supplied by utilizing the rotation of the light transmitting body.

When tracing the original plate while pressing the portable light irradiation device against the heat-sensitive reactor by hand, if the light is irradiated continuously or at equal time intervals, the speed of manually tracing the original plate will be uneven. Also, the amount of light irradiated becomes uneven, and the quality of coloring the original plate and the quality of copying to the heat-sensitive reactor deteriorate. In particular, there is a difference in quality between the start point, end point, and intermediate point. In order to solve this problem, the present invention proposes a portable light irradiation device characterized by intermittently generating a light beam in synchronization with the amount of change in the relative position with respect to the original. An example of synchronizing light irradiation by detecting the amount of change in the relative position with respect to the original is when a portable light irradiation device rotatably supports a light transmitting body in the shape of a belt or roller and traces the original. A method of irradiating light in synchronization with the rotation amount of the light transmitting body, and a method of irradiating light in synchronization with the number of rotations of the light transmitting body, and a method of separately preparing a guide ruler with uneven shapes at equal intervals and tracing the original while being guided by the guide ruler with a portable light irradiation device. A possible method is to irradiate light in synchronization with the concave or convex shape of the guide ruler.

The portable light irradiation device of the embodiment shown in FIG. 7 has a light irradiation device main body 7a that is small and lightweight and has a light source, and a power supply means 7b that is provided separately from the light irradiation device main body 7a, and a cable 7C. It is characterized by being connected through. 7d is a thermosensitive reactant superimposed on the original plate 1. By separating the power supply means 7b, which has a large weight ratio, the main body 7a of the light irradiation device has the advantage that it can be easily operated and can be used for a long time without getting tired. Furthermore, even if the power supply means 7b is a little heavy or large, it has the advantage that it does not affect the operability of the main body 7a of the light irradiation device. It is possible to increase the degree of freedom in design when adding it to the power supply means 7b in accordance with market needs. The power supply means 7b has a configuration for exchanging mechanical energy such as a mainspring into electrical energy.
If you have one, you don't have to worry about charging or replacing batteries, which is economical. It is convenient to carry the cable 7C if it is detachably connected to one or both of the main body 7a and the power supply means 7b of the light irradiation device.

The portable light irradiation device 8 of the embodiment shown in FIG. 8 includes a light blocking plate 8C in the light passing path 8b between the light source 8a and the light transmitting part 8e of the light transmitting body 8d, so that the light at the light transmitting part 8e is blocked. A feature is that the light irradiation area that affects the heat-sensitive reactant 8g and the original plate 1 can be varied by adjusting the passage area. Examples of adjusting the light passing area of the light transmitting portion 8e with the light shielding plate 8C include a method of controlling the light passing area by changing the position of the light shielding plate, such as using an aperture mechanism, and a method of controlling the light passing area by changing the position of the light shielding plate, such as using an aperture mechanism; There is a method of controlling the light beam passage area by using a light shielding plate that has a different shape and replacing it with a light shielding plate that has a different opening or notch shape. In the embodiment shown in FIG. 8, the light passing area is controlled by changing the shape of the light passing aperture 8f.

In the embodiment, the light shielding plate 8C can be easily replaced by attaching and detaching the light transmitting body 8d, but an opening for inserting the light transmitting body 8C is provided on the side of the portable light irradiation device 8, and the light transmitting body 8d is attached and detached. It may also be possible to exchange it without any trouble. The fact that the area of action of light irradiation can be adjusted by the light shielding plate 8C in this way is as follows.
It has the effect of being easily adaptable to applications ranging from cases in which only a local image area of the original plate is irradiated to light irradiation to cases in which a wide range of image areas are simultaneously irradiated, and is useful for improving the flexibility of image areas and work efficiency.

The portable light irradiation device 9 of the embodiment shown in FIG.
It is characterized by having a plurality of b. In the embodiment, a long and thin rectangular light transmitting section is used for coloring or copying several lines of characters, etc. in one operation, and a relatively small rectangular light transmitting section is used for partially coloring or copying characters, etc. The light transmitting section 9b is made up of a light transmitting section 9b, and the degree of freedom in use can be increased by controlling the passage of light rays through each light transmitting section independently using a light shielding plate or the like. Here, if a configuration is adopted in which a dedicated light source is provided for each of the plurality of light transmitting sections or light beam passing paths, each light source can be controlled independently, thereby allowing the light beams shown in FIGS. The same effects as in the embodiment can be obtained.

As another example of varying the area of action of light irradiation related to the sensitivity reactant and the original plate, the light irradiation area can be changed by replacing and attaching a light transmitting body having light transmitting parts of different shapes to a portable light irradiation device. One way is to vary the . The light transmitting body is characterized in that it is removably attached to the main body of the portable light irradiation device by screw structure attachment, concave-convex fitting, or the like. To explain using FIG. 6, the embodiment shown in FIG. 6 is an example in which the unevenness due to the shape of the claw is corrected, and it can be attached and detached with one touch. The light transmitting body 3d consists of a light transmitting part 3e that allows light to pass through and a light non-transmitting part that does not allow the light to pass through. By replacing and attaching it to the main body, you can control the light irradiation area. The light transmitting portion 3e is made of glass, synthetic resin, or the like that transmits light, and serves to press the heat-sensitive reactant 3g onto the original plate l. When the width of the light-transmitting area is narrow, the pressure of the non-light-transmitting area around the light-transmitting area prevents the heat-sensitive reactant 3g and the original plate 1 from being irradiated with light even without the light-transmitting area 3e being pressed. Since the crimped state is improved, the light transmitting portion 3e can be simply an opening without glass or the like. Furthermore, if the light transmitting portion 3e plays the role of a filter 7'- which mainly absorbs light in a certain wavelength range, it is useful to prevent coloring or copying regardless of the image information of the original plate 1. At the same time, it also has the advantage that it can be easily replaced with a light transmitting body that has a different filter performance.

Furthermore, if additional means for adjusting the intensity of the light beam and the lighting time of the light source are provided, the amount of light irradiation can be adjusted according to the type of original plate or heat-sensitive reactant and ease of use, further increasing the product value. As an example of improving the quality of coloring and copying, a more stable original can be created by placing an elastic and heat-insulating underlay sheet under the original on the opposite side from the heat-sensitive reactor and pressing a portable light irradiation against the heat-sensitive reactor. Pressure bonding properties between the heat-sensitive reactants and the effective use of light energy can be obtained. It would be convenient if the undersheet is provided with a Velcro tape that maintains the rolled state so that the undersheet can be rolled up and carried.

〔Effect of the invention〕

As explained in detail above, the portable light irradiation device of the present invention provides a means for easily selecting and coloring or copying only a desired image area of an original plate, and it also provides a means for easily selecting and coloring or copying only a desired image area of an original plate and a heat-sensitive reactor. It can be used without being limited by size. In addition, since the purpose of coloring and copying can be achieved with a small number of components, it has the advantage of being easy to carry around and having excellent operability, as well as being able to be done manually by the user at a fairly low price. By providing the portable light irradiation device with the functions shown in the embodiments, it is possible to easily meet demands for expanded usage and ease of use.

[Brief explanation of drawings]

FIG. 1, FIG. 3, FIG. 4, and FIG. 5 are explanatory diagrams showing examples of the present invention, in which the original plate and the heat-sensitive reactor are partially shown in enlarged cross-sections. FIG. 2 is an explanatory diagram showing an example of a thermosensitive reactant. 6 and 8 are cross-sectional views showing embodiments of the portable light irradiation device according to the present invention. 7 and 9 are perspective views of embodiments of the portable light irradiation device according to the present invention. 1...Original plate 1a...Image area of the original plate 1b...
Image area that absorbs light and generates heat 2.3g, 4.5.6
．． 7d, 8g...Thermosensitive reactant 3.7.8.9...
Portable light irradiation device 3a, 8a...light source 3b, 7b
...Power supply means 3d, 8d...Light transmitting body 3C...
・Light, deb line reflector 3 e, s key line transmission part 2a, 5b
... Colored layer 4a ... Thermochromic body 6b ... Heat sublimation layer 11 Figure Dingguang HA Aoto L] "i" =, ○

Claims (12)

[Claims] (1) A thermosensitive reactant having a heat-changeable element and transmitting light is superimposed on an original having an image area that absorbs light and a non-image area that absorbs less light than the image area. A portable light irradiation device characterized in that it can press a part of the heat-sensitive reactor into contact with the heat-sensitive reactor in a state in which it is held in place, and selectively irradiate only a desired image area of the original plate with a light beam. (2) The colored layer of the heat-sensitive reactant adheres to the heated image area due to heat generated by absorption of light in the image area of the light irradiation part, so that only the desired image area of the original plate can be selectively colored. A portable light irradiation device according to claim (1). (3) By causing a change in the thermosensitive reactant due to the heat generated by the absorption of light in the image area of the light irradiation part, it is possible to select only the desired image area of the original plate and copy it in an identifiable state on the thermosensitive reactant. A portable light irradiation device according to claim (1). (4) A portable light irradiation device as set forth in claim (1), comprising a light transmitting member, a light source, and a power source means, which are used in pressed contact with a heat-sensitive reactant. (5) The portable light irradiation device according to claim (4), wherein the pressing against the heat-sensitive reactant is a condition for supplying electric energy to the light source and irradiating light. (6) The portable light irradiation device according to claim (4), wherein the light transmitting body is rotatably supported. (7) Claim (4), characterized in that the light beam is intermittently generated in synchronization with the amount of change in the relative position with respect to the original plate.
Portable light irradiation device described in Section 1. (8) The portable light irradiation device according to claim (4), wherein the heat-sensitive reactant is supported in a detachable manner. (9) The portable light according to claim (4), wherein the power source means is provided separately from the main body of the portable light irradiation device having a light source and is connected via a cable. Irradiation device. (10) By providing a light blocking plate in the light passing path between the light source and the light transmitting portion of the light transmitting body and controlling the passage or blocking of the light beam, the light irradiation area that affects the thermosensitive reactant and the original plate can be varied. A portable light irradiation device according to claim (4), characterized in that: (11) The portable light irradiation device according to claim (4), wherein the portable light irradiation device has a plurality of light transmitting parts, and the passage or blocking of the light beam in each of the light transmitting parts can be independently controlled. . (12) The light transmitting body is supported in a removable manner, and the light irradiation area relating to the thermosensitive reactor and the original plate can be varied by replacing and attaching light transmitting bodies with different shapes of light transmitting parts. A portable light irradiation device according to claim (4).