JPH09171343A - Recorded image fixing method and three-dimensional image recorder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a recorded image fixing method and a three-dimensional image recorder capable of forming a three-dimensional hard copy in a short time with a simple constitution by heating the exposing part of holographic material through a base substance or a protective film in a state where the heating surface of a heating means, whose temperature is controlled, is brought into contact therewith. SOLUTION: A heat roller 78 rotatably journaled, a pair of feeding rollers 79A and 79B for discharging, and a cutter 80 are successively disposed at the poststage of an ultraviolet lamp 77 in the course of a recording medium 58 for holograms, and the rollers 79A and 79B hold the recording medium 58 so that a cover sheet is wound round the peripheral side surface of the roller 78 over a half periphery in a tight contact state. The roller 78 is set so that a temperature of about 120 deg.C may be kept on the peripheral side surface. Therefore, the outside diameter of the roller 78 is selected so that the recorded image may be fixed from the time when the recording medium 58 started to abut on the peripheral side surface until it is separated therefrom.

Description

Detailed Description of the Invention

[0001]

[Table of Contents] The present invention will be described in the following order. BACKGROUND OF THE INVENTION Technical Field of the Invention Conventional Technology (FIGS. 6 and 7) Problems to be Solved by the Invention (FIGS. 6 to 9) Means for Solving the Problems (FIGS. 1 to 5) Embodiments of the Invention (1 ) Overall configuration of hologram printer system according to embodiment (Figs. 1 to 3) (2) Configuration of hologram recording medium and printer head portion of holographic recording stereogram printer (Figs. 1 to 5) (3) Embodiment And effects (FIGS. 1 to 5) (4) Other embodiments (FIGS. 1 to 5)

[0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording image fixing method and a three-dimensional image recording apparatus, and is preferably applied to, for example, a holographic stereogram printer apparatus.

[0003]

2. Description of the Related Art Conventionally, in a holographic optical stereogram, one real object is sequentially photographed from different observation points, and a large number (for example, several hundreds) of images thus obtained are used as original images, and these images are recorded as one hologram. It is manufactured by sequentially recording interference fringes in the form of strips or dots on a recording medium for use.

In practice, for example, in a holographic stereogram having parallax information only in the horizontal direction, as shown in FIG. 6, original images obtained by sequentially photographing one real object 1 from different observation points in the horizontal direction. 2A to 2E are sequentially arranged and recorded as hologram pieces in the form of strips on the hologram recording medium 3.

Thus, in this type of holographic image stereogram, when the observer sees with both eyes, the two-dimensional images respectively reflected in his right and left eyes are slightly different, so that the observer can feel parallax. Thus, the observer can recognize the reproduced image as if it appears in a three-dimensional manner (that is, the reproduced image is a three-dimensional image).

Here, FIG. 7 shows an example of the configuration of a printer device (hereinafter referred to as a holographic stereogram printer device) capable of producing such a holographic stereogram.

In this holographic stereogram printer device 10, a large number of image data D1A obtained by sequentially photographing the real object while changing the observation points in the lateral direction.
Or a plurality of CADs created by sequentially providing parallax in the horizontal direction
(Computer Aided Design) images and CG (Computer Grad
image data D1B of rendered image such as image
The LCD (Liquid Crystal Display) 11 is driven based on the image data D1A and D1B, and the images based on the image data D1A and D1B are sequentially recorded on the hologram recording medium 12 as strip-shaped hologram pieces. It is adapted to produce D1B based holographic stereograms.

In practice, in the holographic stereogram printer device 10, a separately provided system control unit (not shown) provides a plurality of obtained image data D1A, D1.
By driving the LCD 11 based on one of the image data D1A and D1B of 1B, an image based on the image data D1A and D1B is displayed on the LCD 11, and at this time, the system control unit sends a control signal S1 to the shutter 13. The laser light L1 emitted from the laser light source 14 is made incident on the spatial filter 17 through the shutter 13, the half mirror 15 and the mirror 16 in this order by driving the laser light source 14 to open.

This laser light L1 is magnified by a spatial filter 17 and a collimator lens 18, and LC
After being converted into projection light corresponding to the image displayed on the LCD 11 by passing through D11, the condenser lens 19
The light enters the collimator lens 20 via the, is laterally compressed by the collimator lens 20, and then enters the hologram recording medium 12 held by the electric stage 21.

At this time, the half mirror 15 is placed at the incident position of the laser beam L1 on the hologram recording medium 12.
The laser beam L1 reflected at is incident as a reference beam from the back surface side of the hologram recording medium 12 at a predetermined angle through the spatial filter 22, the collimator lens 23, and the mirror 24 in order. In this case, the optical path length of the reference light is the laser light L1 which is transmitted through the half mirror 15 and then incident on the hologram recording medium 12 via the mirror 16.
The length is selected to be almost the same as the optical path length (hereinafter referred to as object light).

Thus, in this holographic stereogram printer device 10, the object light (projection light) and the reference light can be caused to interfere on the recording surface of the hologram recording medium 12, whereby the image displayed on the LCD 11 is displayed. Can be recorded as striped interference fringes on the hologram recording medium 12.

Further, in this holographic stereogram printer device 10, when the recording of this image is finished thereafter, the shutter 13 is driven by the above-mentioned system control unit to shield the laser beam L1 emitted from the laser light source 14. At the same time, the driving of the LCD 11 is stopped, and the hologram recording medium 12 is sent in the direction indicated by the arrow a by one horizontal width of the hologram piece by driving the electric stage 21 under the control of the system controller.

Further, thereafter, the LCD 11 is driven by the control of the system control section to display an image based on the subsequent image data D1A, D1B, and then the system control section opens the shutter 13 and the image displayed on the LCD 11 is a hologram. The data is recorded on the recording medium 12, and thereafter the same operation is sequentially repeated.

Thus, in the holographic stereogram printer device 10, each image based on each image data D1A and D1B of the supplied parallax image sequence can be sequentially recorded in the hologram recording medium 12 in the form of a strip. It is designed to be able to obtain a holographic-like stereogram.

[0015]

By the way, in recent years, as a holographic photosensitive material, a photopolymer material having excellent photopolymerization characteristics has been developed among photopolymer materials which do not require development processing. (For example, O manufactured by Dyupon Co.
MNI-DEX (trade name)).

This holographic photosensitive material is shown in FIG.
As shown in (A), in the initial state, the monomers 25 are uniformly dispersed in the matrix polymer, and from this state, FIG.
When the laser beam L2 having good coherence as in (B) is irradiated with a predetermined power (10 to 400 [mJ / cm ² ]), the monomer 25 is polymerized in the exposed portion and the monomer 25 is removed from the surroundings as it becomes a polymer. The movement causes the monomer concentration to change from place to place, resulting in refractive index modulation. Further, as shown in FIG. 9 (C), this holographic photosensitive material is then exposed to ultraviolet light or visible light L3 at a predetermined power (1000 [mJ / c
By irradiation with m ² ]), the polymerization of the monomer 25 can be completed, and thus the interference fringes of the laser beam L2 can be recorded as a change in the refractive index.

Therefore, by adopting a hologram recording medium using such a holographic photosensitive material, it is possible to obtain a high quality holographic stereogram and to develop the holographic photosensitive material. It is considered that a holographic stereogram printer having a simple structure can be constructed because the processing is not required.

However, in practice, in this photopolymerizable photopolymer (OMNI-DEX), ultraviolet light or visible light L
After the whole surface exposure of 3 (FIG. 8C), it is recommended to leave it in the air of 120 ° C. for 2 hours in order to increase the degree of modulation of the refractive index. Therefore, when such a holographic recording material is used as the hologram recording medium, not only does the printer become large in size when the fixing device is considered, but also the fixing time relative to the exposure time. Since it takes quite a long time, there is a problem that the process time as a whole also becomes long.

The present invention has been made in consideration of the above points, and proposes a recording image fixing method and a three-dimensional image recording apparatus capable of producing a three-dimensional hard copy with a simple structure in a short time. Is.

[0020]

In order to solve such a problem, in the first invention, after the image is recorded as an interference fringe by exposure, the exposed portion is heated in the atmosphere to enhance the refractive index modulation and fix the recorded image. In the method for fixing the recorded image of the holographic material, the substrate or the protective film is brought into contact with the substrate coated with the holographic material or the protective film adhered to the heating surface of the temperature-controlled heating means. The exposed portion of the holographic material was heated via.

In the second aspect of the present invention, a holographic material is provided which is adapted to record an image as interference fringes by exposure and then heat the exposed portion in the atmosphere to enhance the refractive index modulation and fix the recorded image. In a three-dimensional image recording apparatus configured to record an image based on each image data of the parallax image sequence by sequentially exposing based on each image data of the parallax image sequence, a substrate coated with a holographic material. Alternatively, a heating means for heating the exposed portion of the holographic material through the substrate or the protective film by bringing the temperature-controlled heating surface into contact with the protective film applied to the holographic material is provided. I did it.

Here, in the case of the first invention, in the holographic material in which the exposed portion is heated in the atmosphere after the exposure to enhance the refractive index modulation and to fix the recorded image, the exposed portion is contact-heated. Therefore, it is possible to enhance the refractive index modulation and fix the recorded image.

Therefore, by using such a contact heating method as a method for enhancing the refractive index modulation of this type of holographic material and fixing the recorded image, it is possible to significantly shorten the time as compared with the atmosphere heating method, and It is possible to fix the recorded image with a simple configuration.

In the case of the second invention, the refractive index modulation enhancement of the exposed portion of the holographic material and the fixing of the recorded image can be performed by the heating means. Therefore, the first
Similar to the invention described above, it is possible to fix a recorded image in a significantly shorter time and with a simple structure as compared with the atmosphere heating method.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings.

(1) Overall Configuration of Hologram Printer System According to Embodiment In FIG. 1, reference numeral 50 denotes a hologram printer system to which the present invention is applied as a whole, and includes a data processing unit 51, a control computer 52, and a holographic stereogram printer device. It is composed of 53.

The data processing unit 51 photographs the real object output from the parallax image sequence photographing device 54 from a plurality of observation points in different lateral directions (for example, simultaneous photographing by a multi-lens camera or continuous photographing by a moving camera). Image data D2A for a plurality of images obtained by
Generates a parallax image sequence based on each image data D2B of a plurality of rendered images created by sequentially providing parallax in the horizontal direction, and sets a predetermined value for each image data D2A, D2B of the parallax image sequence. After the image processing for the hologram is performed, these are temporarily recorded in the recording medium 56 such as a memory or a hard disk.

Further, during the subsequent exposure operation, the data processing section 21 sequentially reads out the respective image data D2A and D2B of the parallax image sequence recorded on the recording medium 56, and sequentially sends them to the control computer 52. In the control computer 52, the system control unit of the holographic stereogram printer device 10 (FIG. 6) described above is based on the image data D2A and D2B of the parallax image sequence supplied from the data processing unit 51 during the exposure operation. Similarly, the shutter 13, the LCD 11, and the printer head (not shown) of the holographic stereogram printer 50 are driven and controlled.

In practice, the holographic-like stereogram printer device 53 has a printer head portion configured as shown in FIG. 3 instead of the motorized stage 21 as shown in FIG. It is formed in the same manner as the holographic stereogram printer device 10 (FIG. 6) except that 57 is applied, and the printer head portion 57 includes a control computer 5 as described later.
Under the control of item 2, the hologram recording medium 58 can be intermittently fed by one hologram piece if necessary.

Thus, in the hologram printer system 50, the hologram recording medium 58 set in the printer head section 57 of the holographic stereogram printer device 53 in a predetermined state is read from the recording medium 56 of the data processing section 51. Images based on the respective image data D2A and D2B of the issued parallax image sequence can be sequentially recorded in a strip shape, whereby a holographic stereogram based on the parallax image sequence can be produced.

(2) Configuration of Hologram Recording Medium and Printer Head of Holographic Optical Stereogram Printer As shown in FIG. 4, the hologram recording medium 58 is actually used in the hologram printing system 50. A photopolymer layer 61 made of a photopolymerizable photopolymer (OMNI-DEX) is formed on one surface of a film base material 60 formed in a tape shape, and a cover sheet 62 is attached to the photopolymer layer 61. A so-called film coating type film formed by the above method is used.

As shown in FIG. 3, the hologram recording medium 58 is housed in a film cartridge 71 in a state of being wound around a roller 70 so that it can be easily pulled out from the film cartridge 71. Has been done.

On the other hand, in the printer head section 57 of the holographic stereogram printer device 53, FIG.
As is apparent from the above, the roller 70 in the film cartridge 71 loaded in the predetermined position is rotatably supported with a predetermined torque, and the hologram recording medium 58 pulled out from the film cartridge 71 is rotatably supported. Can be held by being sandwiched between the intermittent feeding roller 72 and the roller 73, whereby the hologram recording medium 58 can be held by the roller 70 and the intermittent feeding roller 72.
In between, the object light (laser light L1) can be positioned vertically.

In this case, the roller 70 and the intermittent feeding roller 72 are urged in the directions away from each other by a torsion coil spring (not shown).
Also, a predetermined tension force tension can be applied to the hologram recording medium 58 loaded so as to be stretched between the intermittent feeding rollers 72.

A one-dimensional diffusion plate 74 and a louver film 7 are provided between the roller 70 and the intermittent feeding roller 72.
An optical member 76 made of a rigid body integrally bonded in a curved state of 5 is arranged corresponding to the incident position of the object light, and the optical component 76 is moved by an optical component drive mechanism (not shown) at an arrow b. The hologram recording medium 58 is held so as to be movable toward and away from the hologram recording medium 58.

In this case, the optical component drive mechanism drives the optical component 76 based on the control signal S11 (FIG. 1) supplied from the control computer 52 (FIG. 1) before the exposure operation is started.
Is moved in the direction of approaching the hologram recording medium 58, the curved tip of the optical component 76 is moved to the position shown in FIG.
As described above, the hologram recording medium 58 loaded between the roller 70 and the intermittent feed roller 72 is pressed against the incident position of the object light of the hologram recording medium 58.

Accordingly, in the holographic stereogram printer device 53, the optical component 76 is used.
Thus, minute vibration of the hologram recording medium 58 between the roller 70 and the intermittent feeding roller 72 can be suppressed, and thereby a bright (high diffraction efficiency) holographic stereogram can be obtained. There is.

For this reason, the tip of the optical component 76 in contact with the hologram recording medium 58 is provided with a crown-shaped curvature so that both end portions and the central portion are projected. Is uniformly contacted with both ends and the center of the hologram recording medium 58 in the width direction, and the minute vibration of the hologram recording medium 58 between the roller 70 and the intermittent feed roller 72 is surely suppressed without being biased in the width direction. It is designed to get you.

On the other hand, the intermittent feed roller 72 can freely rotate in the direction indicated by arrow c based on the rotational force output from a stepping motor (not shown). In this case, the stepping motor is controlled by the control signal S11 supplied from the control computer 52 (FIG. 1).
On the basis of the above, the intermittent feed roller 72 is sequentially rotated by a predetermined angle each time the exposure of one image is completed, whereby the hologram recording medium 58 is fed by one hologram piece.

An ultraviolet ray lamp 77 is provided along the path of the hologram recording medium 58 after the intermittent feed roller 72, so that the intermittent feed roller 72 sends the ultraviolet light. Ultraviolet rays L3 for ending the diffusion of the monomer 30 (FIG. 9) can be irradiated to the exposed portion of the hologram recording medium 58 with a predetermined power.

Further, in the path of the hologram recording medium 58, a heat roller 78 that is rotatably supported and a pair of feed and discharge feed rollers 7 are provided downstream of the ultraviolet lamp 77.
9A, 79B and a cutter 80 are sequentially arranged,
The discharge feed rollers 79A and 79B use the hologram recording medium 58 with the cover sheet 62 (FIG. 4) as the heat roller 7.
It is adapted to be held so as to be wound tightly around the peripheral side surface of 8 over a half circumference.

In this case, the heat roller 78 is internally provided with a heat generating means (not shown) such as a heater.
As a result, the peripheral side surface can maintain a temperature of about 120 [° C].

For example, as shown in FIG. 5, the photopolymerized photopolymer (OMNI-DEX) 81 after exposure is
The temperature is controlled to keep a constant temperature of [° C] and the glass plate 83 is pressed from the upper side by a spring force from the upper side, and the glass plate 83 is sandwiched and heated for 5 minutes. This is because it was confirmed by experiments that the same degree of refractive index modulation as in the case where the atmosphere was heated for 2 hours was obtained. Therefore, in the holographic stereogram printing device 53, the hologram recording medium 58 was used.
The exposed portion of the photopolymer layer 61 (FIG. 4) is heated by the heat roller 78 via the cover sheet 62 (FIG. 4), so that the refractive index modulation degree is increased and the recorded image can be fixed. Has been done.

For this reason, the outer diameter of the heat roller 78 is selected so that it takes time for the recorded image to be fixed before the hologram recording medium 58 starts contacting the peripheral surface of the heat roller 78 until it is separated. By heat roller 7
The image recorded on the hologram recording medium 58 that has passed through 8 can be reliably fixed.

Further, a drive mechanism (not shown) of the discharge feed rollers 79A and 79B (hereinafter, referred to as a discharge feed roller drive mechanism) is a control computer 52 (FIG. 1) during intermittent feeding of the hologram recording medium 58. Based on the control signal S11 output from the discharge feed rollers 79A, 7
9B is rotated in synchronization with the intermittent feed roller 72, whereby the hologram recording medium 58,
Intermittent feed roller 72 and discharge feed rollers 79A, 7
Cover sheet 62 without sagging between 9B (FIG. 3)
Is surely held in close contact with the peripheral side surface of the heat roller 78.

Further, a drive mechanism (not shown) of the cutter 80 (hereinafter, referred to as a cutter drive mechanism) causes parallax on the hologram recording medium 58 based on the control signal S11 supplied from the control computer 52 (FIG. 1). After each image based on each image data D2A, D2B of the image sequence is recorded, the cutter 80 is removed at the stage when all the area of the hologram recording medium 58 on which the image is recorded is discharged to the outside of the cutter 80. By driving, this portion is separated from other portions, whereby each image data D2A, D2 of the parallax image sequence of the hologram recording medium 58 is formed.
The portion where 2B is recorded can be discharged to the outside as one holographic stereogram.

(3) Operation and Effect of the Embodiment With the above configuration, in the hologram printer system 50, at the time of the exposure operation, the control computer 52 is first included in the printer head section 57 of the holographic stereogram printer device 53. This is driven by sending a control signal S11 to the optical component drive mechanism of the optical component drive mechanism of FIG.
The hologram recording medium 58 loaded between 0 and the intermittent feeding roller 72 is pressed with a predetermined pressure.

Next, the control computer 52 receives each image data D of the parallax image sequence supplied from the data processing unit 51.
The LCD 11 of the holographic stereogram printer device 53 is driven based on 2A and D2B, and thus the LCD 11 is caused to display an image based on one image data D2A and D2B.

Further, the control computer 52 opens the shutter 13 (FIG. 2) of the holographic stereogram printer device 53 to open the shutter 13 (FIG. 2) and causes the laser light L1 emitted from the laser light source 14 (FIG. 2) to pass through the LCD 11 to produce a holographic stereogram. The hologram recording medium 58 held by the printer head portion 57 of the printer device 53 is made to enter the hologram recording medium 58, and thus the image displayed on the LCD 11 is recorded in a rectangular shape in a predetermined area of the hologram recording medium 58.

Subsequently, when the control computer 52 finishes recording the image on the hologram recording medium 58,
By sending the control signal S11 to the stepping motor and the discharging feed roller driving mechanism included in the printer head section 57 of the holographic stereogram printer 53 and driving them, the hologram recording medium 58 is moved. Send only one hologram piece.

Further, the control computer 52 subsequently displays an image following the LCD 11 of the holographic stereogram printer device 53 based on each image data D2A, D2B of the parallax image sequence supplied from the data processing unit 51, and Thereafter, the same operation as described above is sequentially repeated to sequentially record each image based on each image data D2A, D2B of the parallax image sequence supplied from the data processing unit 51 on the hologram recording medium 58 in a strip shape.

At this time, in the printer head section 57 of the holographic stereogram printer apparatus 53, the ultraviolet lamp 7 is applied to the photopolymer layer 61 (FIG. 4) of the exposed portion of the hologram recording medium 58 which is sequentially intermittently fed.
7 (FIG. 3) is irradiated over the entire surface with ultraviolet rays L3 to complete the polymerization of the monomer 25 (FIG. 9) of the exposed portion.
Then, the recording image is fixed by heating it via the cover sheet 62 (FIG. 3), and then the recording image is sent to the outside sequentially with the intermittent feeding of the hologram recording medium 58.

After that, when all the image-recorded portions of the hologram recording medium 58 are sent to the outside, the cutter driving mechanism drives the cutter 80 based on the control signal S11 supplied from the control computer 52, The produced holographic stereogram is separated from the other hologram recording medium 58, and is then discharged to the outside.

In the holographic stereogram printer device 53, as described above, the photopolymerizable photopolymer (OMNI-) is used as the hologram recording medium 58.
A photosensitive material made of DEX) is used, and a heat roller 78 whose peripheral side surface is kept at a predetermined temperature is brought into contact with the exposed portion of the hologram recording medium 58 to heat the exposed portion. Then, the fixing process of the recorded image is performed.

Therefore, in this holographic stereogram printer device 53, as the fixing process of the recorded image,
The recording medium 58 for hologram after image recording is set to 120 [° C].
As compared with the case where the atmosphere is heated for 2 hours, the fixing process can be performed in a remarkably short time, and the process time from the exposure to obtaining the holographic stereogram can be remarkably shortened by that much.

Further, in the holographic stereogram printer device 53, the hologram recording medium 58 is formed by the contact heating with the heat roller 78 as described above.
Since the image recorded on the
As compared with the case where the fixing process of the recorded image is performed by heating the atmosphere in C] for 2 hours, the size can be further reduced, and the cost can be reduced accordingly.

Further, in this holographic stereogram printer device 53, the outer diameter of the heat roller 78 is selected so that it takes time to fix the recorded image from the time when the hologram recording medium 58 starts contacting to the time when the hologram recording medium 58 is separated. Therefore, the process from the exposure process to the hologram recording medium 58 to the process for fixing the recorded image can be performed in a continuous flow without delay, and the process time can be further shortened.

According to the above construction, the photopolymerizable photopolymer (OMNI-DE) is used as the hologram recording medium 58.
X) is used, and a heat roller 78 whose peripheral side surface is kept at a predetermined temperature is brought into contact with the exposed portion of the hologram recording medium 58 to heat the exposed portion. By fixing the recorded image in this way, the fixing process of the recorded image can be performed in a short time, and the downsizing and cost reduction of the device 53 can be promoted, and thus the holographic stereogram can be formed with a simple structure. It is possible to realize a holographic stereogram printer device that can be produced in high quality in a short time.

(4) Other Embodiments In the above embodiment, the hologram recording medium 5 is used.
As a holographic photosensitive material of No. 8, O manufactured by Deupon
Although the case where MNI-DEX is applied has been described, the present invention is not limited to this, and in short, after the image is recorded as interference fringes by performing exposure by irradiating projection light of the image, Various holographic photosensitive materials other than the holographic material can be applied as long as the holographic material is such that the exposed portion is heated in the atmosphere for enhancing the refractive index modulation and fixing the recorded image.

Further, in the above-mentioned embodiments, the case where the present invention is applied to the hologram printer system 50 adapted to produce the holographic stereogram having the parallax information only in the lateral direction has been described. The present invention is not limited to this, and a hologram printer system capable of producing a holographic-like stereogram having parallax information only in the vertical direction, and a holographic-like stereogram having parallax information in both the horizontal and vertical directions. It can also be applied to a hologram printer system that can be manufactured.

Further, in the above-described embodiment, the case where the present invention is applied to the holographic stereogram printer device 53 configured as shown in FIG. 2 has been described, but the present invention is not limited to this, and is essential. By sequentially recording the projection light (object light) of each image based on each image data D2A, D2B of the supplied parallax image sequence on the recording medium for hologram in the form of strips or dots as interference fringes.
3 made to be able to obtain a three-dimensional hard copy
If it is a three-dimensional image recording device, it can be applied to other three-dimensional image recording devices having various configurations.

Further, in the above-described embodiment, a heating means such as a heater is internally provided as a heating means for fixing the recorded image by heating the hologram recording medium 58 with the image recorded on the hologram recording medium 58. The case where the provided heat roller 78 is applied has been described, but the present invention is not limited to this, and the point is that the base film 60 or the cover sheet 62 is provided on the exposed portion of the photopolymer layer 61 of the hologram recording medium 58. As long as the exposed portion of the photopolymer layer 61 can be heated by bringing the heating surface into contact therewith to fix the recorded image, various other configurations and shapes can be applied as the heating means. .

Further, in the above-described embodiment, as means for completing the photopolymerization of the monomer 25 in the exposed portion of the hologram recording medium 58 on which an image is recorded, ultraviolet rays are applied to the exposed portion of the hologram recording medium 58. Although the case of irradiating L3 has been described, the present invention is not limited to this, and the ultraviolet L3 or other visible light may not be irradiated. This is because, for example, in OMNI-DEX, the photopolymerization of the monomer 25 in the exposed portion can be completed by heating (in this case, contact heating by the heat roller 78). Therefore, the configuration of the holographic stereogram printer device 53 can be further simplified.

Further, in the above-described embodiment, it is necessary that the outer diameter of the heat roller 78 be such that a recorded image can be fixed before the hologram recording medium 58 starts contacting with the heat roller 78 and then leaves. Although the case has been described above, the present invention is not limited to this,
The angle at which the hologram recording medium 58 is wound around the heat roller 78 may be selected.

Further, for example, in OMNI-DEX, it is known that the fixing time of the recorded image can be controlled also by the heating temperature at the time of contact heating, and accordingly, the hologram recording medium 58 hits the heat roller 78. The temperature of the outer peripheral surface of the heat roller 78 may be controlled so that it takes time for the recorded image to be fixed from the time when the contact is started to the time when it is separated. In short, the photopolymer layer 61 of the hologram recording medium 58 is formed. The size and / or the temperature of the heating surface of the heating means for heating the hologram recording medium 58 is selected according to the fixing condition of the recorded image of the holographic recording material (that is, the condition for fixing the recorded image). It should be done.

[0066]

As described above, according to the first aspect of the present invention, after the image is recorded as interference fringes by exposure, the exposed portion is heated in the atmosphere to enhance the refractive index modulation and fix the recorded image. In a method of fixing a recorded image of an ink material, the holographic material is applied through a substrate or a protective film such that a substrate coated with the holographic material or a protective film applied thereto is brought into contact with a heating surface of a temperature-controlled heating means. By heating the exposed portion of the material, it is possible to fix the recorded image in a short time, and thus it is possible to realize a method for fixing the recorded image that can produce a three-dimensional hard copy with a simple structure in a short time. .

According to the second invention, after the image is recorded as an interference fringe by exposure, a holographic material for exposing the exposed portion to the atmosphere for enhancing the refractive index modulation and fixing the recorded image is supplied. By sequentially performing exposure based on each image data of the parallax image sequence, each image based on each image data of the parallax image sequence is sequentially recorded on the holographic material in the form of strip or dot. In the image recording apparatus, the exposed portion of the holographic material is exposed through the substrate or the protective film by bringing the temperature-controlled heating surface into contact with the substrate coated with the holographic material or the protective film applied to the holographic material. Of the holographic material by heating means for heating and fixing the recorded image. The fixing of the recording image can be performed in a short time and a simple structure, thus can realize a three-dimensional image recording apparatus that may be produced in a short time a three-dimensional hard copy with a simple configuration.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing an overall configuration of a hologram printer system according to an embodiment.

FIG. 2 is a schematic diagram illustrating a configuration of a holographic stereogram printer device.

FIG. 3 is a schematic diagram illustrating a configuration of a printer head unit.

FIG. 4 is a sectional view showing a configuration of a hologram recording medium.

FIG. 5 is a cross-sectional view for explaining a fixing method of a photopolymerizable photopolymer by an experiment.

FIG. 6 is a schematic diagram for explaining a procedure for producing a holographic-like stereogram.

FIG. 7 is a schematic diagram illustrating a configuration example of a holographic stereogram printer device.

FIG. 8 is a chart provided for explaining a holographic photosensitive material.

FIG. 9 is a schematic diagram for explaining a photosensitive process of a photopolymerizable photopolymer.

[Explanation of symbols]

11 ... LED, 12, 58 ... Hologram recording medium, 13 ... Shutter, 14 ... Laser light source, 50 ...
... Hologram printer system, 51 ... Data processing unit, 52 ... Control computer, 53 ... Holographic optical stereogram printer device, 57 ... Printer head unit, 60 ... Film base material, 61 ... Photopolymer layer, 62 ...... Cover sheet, 70 ...... Roller, 7
2 ... Intermittent feed roller, 74 ... One-dimensional diffusion plate, 75
...... Louver film, 76 ...... Optical parts, 77 …… UV lamp, 78 …… Heat roller, L1 …… Laser light, L3 …… UV light.

Claims (3)

[Claims] 1. The image is recorded as interference fringes by exposing the image by irradiating it with projection light of the image, and then the exposed portion is heated in the atmosphere to enhance the refractive index modulation and fix the recorded image. In a method for fixing a recorded image of a holographic material, a substrate coated with the holographic material and / or a protective film adhered to the holographic material is brought into contact with a heating surface of a temperature-controlled heating unit to obtain the above-mentioned material. A method for fixing a recorded image, which comprises heating the exposed portion of the holographic material through a substrate or the protective film. 2. The image is recorded as interference fringes by exposing the image by irradiating with projection light of the image, and then the exposed portion is heated in the atmosphere for enhancing the refractive index modulation and fixing the recorded image. By sequentially exposing the holographic material based on each image data of the supplied parallax image sequence, each image based on each image data of the parallax image sequence is sequentially recorded on the holographic material in the form of strips or dots. In the three-dimensional image recording apparatus configured as described above, the substrate coated with the holographic material and / or the protective film coated on the holographic material is brought into contact with a heating surface whose temperature is controlled to bring the substrate or A heating means for heating the exposed portion of the holographic material through the protective film. 3D image recording device. 3. The heating means is characterized in that the size of the heating surface and / or the temperature of the heating surface is selected according to the fixing condition of the recorded image of the holographic material. The three-dimensional image recording device described.