JP2020154046A - Projection system, projection target medium, method for manufacturing, and program - Google Patents

Abstract

To express colors of a three-dimensional object accurately.SOLUTION: The projection system according to the present invention includes: a projection target medium on which an image is projected; and a projection device for projecting the image on the projection target medium. The projection target medium includes: a white substrate part; and a protrusion formed of one of a white first droplet, a transparent second droplet, and a third droplet as a mixture of a white droplet and a transparent droplet and having the maximum height from the surface of the substrate of 10 millimeters or less. The projection device includes a projector for projecting the image.SELECTED DRAWING: Figure 1

Description

The present invention relates to projection systems, projection media, manufacturing methods and programs.

In recent years, a method of manufacturing a three-dimensional object in three dimensions has been known.

For example, in a method for manufacturing a three-dimensional object, a step of coating the surface of the three-dimensional object with a color photoconductor material to give color to the three-dimensional object is performed. A method using a photolithography method or the like in this step is known (see, for example, Patent Document 1).

However, in many cases, the conventional method cannot express colors well. That is, the color set and projected by the image data or the like is expressed by receiving the color of the projected medium or the like. Therefore, it may not be possible to accurately express colors.

One aspect of the present invention is intended to accurately express the color of a three-dimensional object.

According to one embodiment of the present invention
In a projection system having a projected medium on which an image is projected and a projection device that projects the image onto the projected medium.
The projected medium is
It is formed by either a white substrate portion and a white first droplet, a transparent color second droplet, or a third droplet that is a mixture of white and transparent color droplets, and is formed on the surface of the substrate portion. With protrusions that have a maximum height of 10 mm or less from
The projection device
It is characterized by including a projection unit for projecting the image.

According to the embodiment of the present invention, the color of a three-dimensional object can be accurately expressed.

It is a conceptual diagram which shows the use example of a projection system. It is a figure which shows the example before projecting a projected image and after projecting a projected image. It is sectional drawing (the 1) which shows the manufacturing example and the structural example of the projection medium. It is sectional drawing (the 2) which shows the manufacturing example and the structural example of the projection medium. It is sectional drawing (the 3) which shows the manufacturing example and the structural example of the projection medium. It is sectional drawing (the 4) which shows the manufacturing example and the structural example of the projection medium. It is a flowchart which shows the example of the manufacturing method. It is a figure which shows the whole structure example of a manufacturing apparatus. It is a top view which shows the example of the manufacturing apparatus. It is a side view which shows the example of the manufacturing apparatus. It is a front view which shows the example of the manufacturing apparatus. It is a block diagram which shows the hardware configuration example of a manufacturing apparatus.

Hereinafter, the optimum mode for carrying out the invention will be described with reference to the drawings.

<Example of using the projection system>
FIG. 1 is a conceptual diagram showing an example of using a projection system. For example, the projection system 100 has a structure including a projection medium 11 and a projector 12 which is an example of a projection device.

The projected medium 11 is installed on a wall WL or the like as shown, for example. Then, after being installed on the wall WL, the projector 12 projects the projected image IMG onto the projected medium 11. The projected image IMG is projected onto the projected medium 11 from the emission surface 13 of the projector 12.

Further, the projected image IMG is projected based on the image data DIMG or the like input to the projector 12. The projector 12 has a light source or the like which is an example of a projection unit. On the other hand, a three-dimensional object is formed on the projected medium 11 based on the image shown by the image data DIMG.

The projected medium 11 may be installed in addition to the wall WL. For example, the projected medium 11 may be used in the form of hanging from the ceiling or the like. That is, the positional relationship may be such that the projector 12 can project an image onto the projected medium 11.

As shown in FIG. 1A, the axis parallel to the horizontal direction is defined as the X axis, and the axis parallel to the vertical direction is defined as the Y axis. Further, as shown in FIG. 1B, the axes perpendicular to the X-axis and the Y-axis are defined as the Z-axis.

As shown in FIGS. 1A and 1B, the projected medium 11 is arranged at least in a part of the XY plane. Further, the projected medium 11 has a height in the Z-axis direction.

The distance from the center of the emission surface 13 of the projector 12 to the center of the projected medium 11 is referred to as "projection distance DIS".

In the projection system 100, the projected image IMG is projected onto the projected medium 11, and the projection system 100 expresses the image as follows, for example.

FIG. 2 is a diagram showing an example before the projected image is projected and after the image is projected. For example, when the projected image IMG is not projected, that is, when the projector is turned off, it is assumed that the state is as shown in FIG. 2 (A). As shown in the figure, in the state of FIG. 2A, unevenness is formed in advance on the surface of the projected medium 11 by the protrusions, so that some kind of pattern is formed on the projected medium 11. It is in a state that can be visually recognized. For example, when the projected image IMG is projected onto such a projected medium 11, the state shown in FIG. 2B is obtained.

FIG. 2B is a diagram showing a state in which the projected image IMG is projected. As shown in the figure, in the state of FIG. 2 (A), the object drawn on the projected medium 11 was in a state where it was difficult to visually understand, but in the state of FIG. 2 (B), colors and the like are added. Therefore, the object drawn on the projected medium 11 is relatively visible. In addition, the texture of the projected image can be reproduced by the unevenness formed on the projected medium. For example, if the projected image is created based on an oil painting, the style of the oil painting artist can be reproduced by the unevenness formed on the projected medium. In this way, the projection system 100 realizes so-called projection mapping.

<Manufacturing example and configuration example of projected medium>
Hereinafter, the droplets forming protrusions on the surface of the projected medium 11 are white droplets (hereinafter referred to as “first droplets”) and transparent colored droplets (hereinafter referred to as “second droplets”). This will be described with an example of a droplet (hereinafter referred to as “third droplet”) in which and is mixed. In the following example, the example of the first liquid drop model is "white ink C1". Similarly, an example of the second liquid drop model is "UV ink C2". Further, an example of the third droplet is referred to as "mixed ink C3".

The third droplet is not limited to a droplet in which the first droplet and the second droplet are mixed in advance. That is, the first droplet and the second droplet may be separately ejected to the projected medium 11, and the first droplet and the second droplet may coexist.

<First example>
FIG. 3 is a cross-sectional view (No. 1) showing a manufacturing example and a configuration example of the projected medium. For example, the projected medium 11 is manufactured as shown.

As shown in the figure, the projected medium 11 is manufactured by applying the mixed ink C3 to the white substrate BW which is an example of the white substrate portion. The arrangement of white and transparent colors may be regular or random.

In the combination of the white substrate BW and the mixed ink C3, the projected medium 11 has a maximum height (in this example, the height indicated by "maximum height H1" in the figure, and the height is Z. The amount of ink on the shaft, also called the ink thickness), is preferably 3 mm (millimeters) or less.

Further, it is desirable that the projected medium 11 manufactured by the combination of the white substrate BW and the mixed ink C3 has a projection distance DIS of 3 m (meters) or more, that is, a so-called medium to long distance projection distance DIS. ..

When the white substrate BW is used, it is difficult for the projected image IMG to pass through the substrate portion. Similarly, if the droplet contains white droplets, it is difficult for the projected image IMG to pass through the protrusions and the like formed by the droplets. Therefore, in the configuration using the white substrate BW and the mixed ink C3, the image can be clearly projected even if the projection distance DIS is a medium distance or a long distance of 3 meters or more.

Further, when a droplet containing white droplets such as white ink C1 or mixed ink C3 is used, a clear image can be projected without any processing such as color correction.

Further, the mixed ink C3 has high elasticity. Therefore, in the first example, the height can be increased, that is, the film thickness due to the ink can be increased, such as the maximum height H1.

<Second example>
FIG. 4 is a cross-sectional view (No. 2) showing a manufacturing example and a configuration example of the projected medium. For example, the projected medium 11 may be manufactured as shown. Compared with the first example, the second example is different in that the white ink C1 is used. That is, as shown in the figure, the projected medium 11 is manufactured by applying the white ink C1 to the white substrate BW.

In the combination of the white substrate BW and the white ink C1, the projected medium 11 has a maximum height (in this example, the height indicated by “maximum height H2” in the figure) of 1 mm or less. Is desirable.

Further, the projected medium 11 manufactured by the combination of the white substrate BW and the white ink C1 is used at what distance the projection distance DIS is, that is, at what distance the projection distance DIS is from a so-called short distance to a long distance. May be good.

When the white substrate BW is used, it is difficult for the projected image IMG to pass through the substrate portion. Similarly, in the case of white droplets, it is difficult for the projected image IMG to pass through the protrusions and the like formed by the droplets. Therefore, in the configuration using the white substrate BW and the white ink C1, the image can be clearly projected regardless of the projection distance DIS.

<Third example>
FIG. 5 is a cross-sectional view (No. 3) showing a manufacturing example and a configuration example of the projected medium. For example, the projected medium 11 may be manufactured as shown. Compared with the first example, the third example is different in that UV ink C2 is used. That is, as shown in the figure, the projected medium 11 is manufactured by applying UV ink C2 to the white substrate BW.

In the combination of the white substrate BW and the UV ink C2, the projected medium 11 has a maximum height (in this example, the height indicated by "maximum height H3" in the figure) of 10 mm or less. Is desirable.

Further, it is desirable that the projected medium 11 manufactured by the combination of the white substrate BW and the UV ink C2 is used at a distance with a projection distance DIS of 1 meter or less, that is, a so-called short-range projection distance DIS.

In the third example, since the white substrate BW is used, the background color can be white. Therefore, if a protrusion or the like is formed with the UV ink C2 so as to make the best use of the white hue, a clearer image can be projected. Further, since the UV ink C2 has higher elasticity, the height can be increased.

<4th example>
FIG. 6 is a cross-sectional view (No. 4) showing a manufacturing example and a configuration example of the projected medium. For example, the projected medium 11 may be manufactured as shown. Compared with the third example, the fourth example is different in that the transparent substrate BC, which is an example of the transparent substrate portion, is used. That is, as shown in the figure, the projected medium 11 is manufactured by applying UV ink C2 to the transparent substrate BC.

In the combination of the transparent substrate BC and the UV ink C2, the projected medium 11 has a maximum height (in this example, the height indicated by “maximum height H4” in the figure) of 10 mm or less. Is desirable.

Further, it is desirable that the projected medium 11 manufactured by the combination of the transparent substrate BC and the UV ink C2 is used at a projection distance DIS of 1 meter or less, that is, a so-called short-distance projection distance DIS.

As described above, when both the substrate portion and the protrusions are transparent, the projected medium 11 transmits the other side of the projected medium 11 when the image is not projected, that is, when the light is turned off. I can let you show it.

<Summary>
Summarizing the configurations of the first to fourth examples, it is desirable that the droplets forming the substrate portion and the protrusions have the following conditions and configurations, for example.

以上のような構成であると、例えば、白色、透明色又はこれらの組み合わせのインク等とは異なる、ＣＭＹＫ色、いわゆる有色のインクを用いる構成よりも、色補正等の処理をあまりしなくとも、３次元立体物の色彩を精度よく表現できる。

With the above configuration, for example, compared to a configuration using CMYK color, so-called colored ink, which is different from inks of white, transparent color or a combination thereof, it is not necessary to perform much processing such as color correction. The colors of three-dimensional three-dimensional objects can be expressed accurately.

Color differences occur depending on whether the image is viewed on a monitor or printed on paper or the like. Therefore, a method of reproducing colors even in printing is adopted by a method of generating a profile or the like. However, in the method using such a profile, the profile may not be generated accurately in a three-dimensional object having many irregularities. On the other hand, with the above configuration, it is possible to accurately express colors even in a three-dimensional object.

Further, it is desirable that the brightness difference “ΔL *” between the projected image IMG and the projected medium 11 is 10 or less, and the component difference “Δb *” in the yellow and blue directions is 10 or less.

The brightness "L *", the reddish purple and blue-green direction component "a *", and the yellow and blue direction component "b *" are colors determined by CIE (International Commission on Illumination) 1976 (also referred to as "CIELAB"). Refers to three coordinates in space. The lightness "L *" indicates the lightness of the color, "0" is black, and "100" is white. In addition, the red-purple and blue-green direction components "a *" are positive for strong red-purple and negative for strong blue-green. Similarly, the components "b *" in the yellow and blue directions are positive for strong yellow and negative for strong blue. Further, when "a * = 0" and "b * = 0", the color becomes achromatic.

<Example of manufacturing method>
For example, the projected medium is manufactured by the following manufacturing method.

FIG. 7 is a flowchart showing an example of the manufacturing method.

In step S1, the manufacturing apparatus inputs image data. That is, what kind of projected image is projected is input to the manufacturing apparatus as data.

In step S2, the manufacturing apparatus generates manufacturing data so as to be equal to or less than a predetermined maximum height. The maximum height is set, for example, according to the type of droplets, the type of substrate, and the like, as shown in (Table 1) above. Then, the manufacturing apparatus generates manufacturing data so as to have a maximum height that satisfies the values shown in the above (Table 1). That is, the manufacturing apparatus generates manufacturing data so as to limit the height so that a three-dimensional object having a height equal to or lower than the maximum height shown in (Table 1) is formed.

In step S3, the manufacturing apparatus applies the droplets based on the manufacturing data. That is, the manufacturing apparatus repeats the first procedure of applying the liquid drops based on the manufacturing data. The protrusion is formed by such a second procedure.

In the above example, the image data shows the projected image in two dimensions, whereas the manufacturing data shows it in three dimensions. Further, the manufacturing data may have a set value or the like indicating conditions or the like used for manufacturing to form a three-dimensional object.

As shown in the figure, the manufacturing method is not limited to the method of inputting image data to generate manufacturing data. For example, the manufacturing apparatus may input manufacturing data. Further, in the format for inputting manufacturing data, for example, the height included in the manufacturing data may be compressed so that the maximum height satisfies the value shown in the above (Table 1), or the height included in the manufacturing data may be compressed in the above (Table 1). The portion exceeding the indicated value may be ignored, or the portion exceeding the value shown in the above (Table 1) may be deleted.

<Examples of manufacturing equipment and 3D modeling system>
For example, the projected medium is manufactured by the following manufacturing equipment, a three-dimensional modeling system, and the like.

FIG. 8 is a diagram showing an overall configuration example of the manufacturing apparatus. For example, the three-dimensional modeling system 1 includes a three-dimensional modeling device 50, which is an example of a manufacturing device, and a computer 10 connected to the three-dimensional modeling device 50.

The computer 10 is, for example, an information processing device such as a PC (Personal Computer) or a tablet. The computer 10 may be a dedicated information processing device for the three-dimensional modeling device 50. Further, the computer 10 may be built in the three-dimensional modeling apparatus 50. Further, the computer 10 is connected to the three-dimensional modeling apparatus 50 by a cable, a network, or the like. The computer 10 may be a server device or the like that communicates with the three-dimensional modeling device 50 via a network such as the Internet or an intranet. Then, the computer 10 transmits the manufacturing data for manufacturing the three-dimensional object or the like to the three-dimensional modeling apparatus 50 by the above connection or communication.

The three-dimensional modeling device 50 is, for example, an inkjet type modeling device. The three-dimensional modeling apparatus 50 includes a modeling unit 570 that discharges a liquid modeling agent I to the medium P placed on the modeling stage 595 based on the data of the modeled object to be reproduced. Further, the modeling unit 570 has a curing means 572 that irradiates the modeling agent I discharged to the medium P with light to cure it to form the modeling layer L. Further, the three-dimensional modeling apparatus 50 obtains a three-dimensional model by repeating a process of discharging the modeling agent I onto the modeling layer L and curing the three-dimensional object.

The modeling agent I is discharged as droplets. As the modeling agent I, a material that can be ejected by the three-dimensional modeling apparatus 50, has shape stability, and is cured by the light emitted by the curing means 572 is used. For example, when the curing means 572 is a UV (Ultra Violet) irradiation device, UV curing ink or the like is used as the modeling agent I. Further, the modeling agent I may contain a polymer of an acrylic monomer.

As the medium P serving as the substrate portion, any material on which the discharged modeling agent I is fixed is used. The medium P is, for example, paper such as recording paper, cloth such as canvas, or plastic such as a sheet.

FIG. 9 is a plan view showing an example of the manufacturing apparatus.

FIG. 10 is a side view showing an example of the manufacturing apparatus.

FIG. 11 is a front view showing an example of the manufacturing apparatus.

In order to show the internal structure, the upper surface of the housing of the three-dimensional modeling apparatus 50 is not shown in FIG. 9, the side surface of the housing is not shown in FIG. 10, and the front surface of the housing is not shown in FIG.

Guide members 591 are held on the side surfaces 590 on both sides of the housing of the three-dimensional modeling apparatus 50. The carriage 593 is movably held by the guide member 591.

The carriage 593 is reciprocated by a motor or the like via a pulley and a belt in the direction of arrow X in FIGS. 9 and 11 (hereinafter referred to as “X-axis”; the same applies to the Y-axis and Z-axis). In the following example, the X-axis is the main scanning direction.

A modeling unit 570 is movably held on the carriage 593 by a motor along the Z axis in FIGS. 9 and 10. In this example, in the modeling unit 570, six liquid discharge heads 571a, 571b, 571c, 571d, 571e, and 571f for discharging each of the six types of modeling agents are arranged in order on the X-axis.

Hereinafter, the liquid discharge head is simply referred to as a "head". Further, any head among the heads 571a, 571b, 571c, 571d, 571e and 571f is referred to as a head 571. The number of heads 571 is not limited to six, and any number of one or more is arranged according to the number of modeling agents I.

The three-dimensional modeling device 50 is provided with a tank mounting portion 560. For example, the tank mounting portion 560 contains a plurality of each of a first modeling agent, a second modeling agent, a third modeling agent, a fourth modeling agent, a fifth modeling agent, and a sixth modeling agent. Tank 561 is installed. Then, each modeling agent is supplied to each head 571 via six supply tubes 562.

Each head 571 has a nozzle or a nozzle row, and discharges the modeling agent supplied from the tank 561. In one embodiment, the heads 571a, 571b, 571c, 571d, 571e and 571f are, from the nozzle, a first modeling agent, a second modeling agent, a third modeling agent, a fourth modeling agent, and a fifth. Discharge the modeling agent and the sixth modeling agent.

Hardening means 572 are arranged on both sides of the six heads 571 in the modeling unit 570. The curing means 572 cures the modeling agent discharged from the head 571 to the medium P.

The curing means 572 may be used as long as it can cure the modeling agent I. For example, the curing means 572 is a lamp such as an ultraviolet (UV) irradiation lamp or an electron beam irradiation lamp. The type of lamp is, for example, a high-pressure mercury lamp, an ultra-high pressure mercury lamp, a metal halide lamp, or the like. Ultra-high pressure mercury lamps are point light sources, but UV lamps with high light utilization efficiency in combination with optical systems can irradiate in the short wavelength region.

Metal halides are effective because they have a wide wavelength range. For the metal halide, a halide of a metal such as Pb, Sn, or Fe is used depending on the absorption spectrum of the photoinitiator contained in the modeling agent. It is preferable that the curing means 572 is provided with a mechanism for removing ozone generated by irradiation with ultraviolet rays or the like. The number of the curing means 572 is not limited to two, and any number may be provided depending on, for example, whether the modeling unit 570 is reciprocated for modeling. Further, only one of the two curing means 572 may be operated.

In the three-dimensional modeling apparatus 50, a maintenance mechanism 580 for maintaining and recovering the head 571 is arranged on one side of the X-axis. The maintenance mechanism 580 has a cap 582 and a wiper 583. The cap 582 is in close contact with the nozzle surface (the surface on which the nozzle is formed) of the head 571. In this state, the maintenance mechanism 580 sucks the modeling agent I in the nozzle, so that the highly viscous modeling agent I clogged in the nozzle is discharged. Then, the nozzle surface is wiped with a wiper 583 to form the meniscus of the nozzle. Further, the maintenance mechanism 580 covers the nozzle surface of the head 571 with a cap 582 when the modeling agent I is not discharged, and prevents the modeling agent I from drying.

The modeling stage 595 has a slider portion movably held by two guide members 592. As a result, the modeling stage 595 is reciprocated by the motor via the pulley and the belt in the Y axis (sub-scanning direction) orthogonal to the X axis.

In the present embodiment, the first modeling agent is black UV curing ink (K) as a key plate, the second modeling agent is cyan UV curing ink (C), and the third modeling agent is magenta UV. The curing ink (M), the fourth modeling agent is yellow UV curing ink (Y), the fifth modeling agent is clear UV curing ink (CL), and the sixth modeling agent is white UV curing ink (W). Is. The number of modeling agents is not limited to six, and any number of one or more may be used depending on the type of color required for image reproduction. If the number of modeling agents is 7 or more, an additional head 571 may be provided in the three-dimensional modeling apparatus 50, and if the number of modeling agents is 5 or less, one of the heads 571 may not be operated or provided. It does not have to be.

FIG. 12 is a block diagram showing a hardware configuration example of the manufacturing apparatus.

The three-dimensional modeling device 50 includes a control unit 500 for controlling the processing and operation of the three-dimensional modeling device 50. For example, the control unit 500 includes a CPU (Central Processing Unit) 501, a ROM (Read Only Memory) 502, a RAM (Random Access Memory) 503, and an NVRAM (Non-Volatile Random Access Memory) 50. , I / F (Interface) 506 and I / O (Import / Output) 507.

The CPU 501 controls the entire processing and operation of the three-dimensional modeling apparatus 50. The ROM 502 stores a program for controlling the three-dimensional modeling operation and other fixed data in the CPU 501. The RAM 503 temporarily stores data and the like of the modeled object to be reproduced. The CPU 501, ROM 502, and RAM 503 construct a main control unit 500A that executes processing according to the above program.

The NVRAM 504 retains data even while the power of the three-dimensional modeling apparatus 50 is cut off. The ASIC 505 processes image processing that performs various signal processing and the like on the data of the modeled object, and other input / output signals for controlling the entire three-dimensional modeling device 50.

The I / F 506 is connected to an external computer 10 and transmits / receives data and signals to / from the computer 10. The data sent from the computer 10 includes the data of the modeled object to be reproduced. The I / F 506 may be connected to a network such as the Internet or an intranet instead of being directly connected to the external computer 10.

The I / O 507 is connected to various sensors 525 and inputs a detection signal from the sensor 525.

Further, an operation panel 524 for inputting and displaying information necessary for the three-dimensional modeling apparatus 50 is connected to the control unit 500.

Further, the control unit 500 includes a head drive unit 511, a motor drive unit 512, and a maintenance drive unit 513 that are operated by commands of the CPU 501 or ASIC 505.

The head drive unit 511 controls the discharge of the modeling agent I by the head 571 by outputting an image signal and a driving voltage to the head 571 of the modeling unit 570. In this case, the head drive unit 511 outputs a drive voltage to, for example, a mechanism for forming a negative pressure of a sub tank for storing the modeling agent I in the head 571 and a mechanism for controlling the pressing. A substrate is also mounted on the head 571, and a drive signal may be generated by masking the drive voltage with an image signal or the like on this substrate.

The motor drive unit 512 drives the motor by outputting a drive signal to the motor of the X-axis scanning mechanism 596 that moves the carriage 593 of the modeling unit 570 in the X-axis (main scanning direction). Further, the motor drive unit 512 drives the motor by outputting a drive voltage to the motor of the Y-axis scanning mechanism 597 that moves the modeling stage 595 in the Y-axis (sub-scanning direction). Further, the motor drive unit 512 drives the motor by outputting a drive voltage to the motor of the Z-axis scanning mechanism 598 that moves the modeling unit 570 on the Z-axis.

The maintenance drive unit 513 drives the maintenance mechanism 580 by outputting a drive signal to the maintenance mechanism 580.

The above parts are electrically connected to each other by an address bus, a data bus, or the like.

<Other Embodiments>
This embodiment may be realized by a computer such as a manufacturing apparatus executing a manufacturing method based on a program. That is, when the manufacturing method is executed based on the program, the arithmetic unit and the control device of the computer perform the arithmetic and control based on the program in order to execute each process. In addition, the storage device of the computer stores the data used for the processing based on the program in order to execute each processing.

The program can also be recorded and distributed on a computer-readable storage medium. The storage medium is a medium such as a magnetic tape, a flash memory, an optical disk, a magneto-optical disk, or a magnetic disk. In addition, the program can be distributed over telecommunication lines.

The embodiment of the present invention may be realized by a manufacturing system or the like. In addition, the manufacturing system may execute each process redundantly, distributed, parallel, virtualized, or a combination thereof.

Similarly, the projection device and the like may be composed of a plurality of devices.

Although an example in the embodiment has been described above, the present invention is not limited to the above embodiment. That is, various modifications and improvements are possible within the scope of the present invention.

1 Three-dimensional modeling system 10 Computer 11 Projected medium 12 Projector 50 Three-dimensional modeling device 100 Projection system 500 Control unit 500A Main control unit 511 Head drive unit 512 Motor drive unit 513 Maintenance drive unit 524 Operation panel 525 Sensor 560 Tank mounting unit 561 Tank 562 Supply tube 570 Modeling unit 571 Head 571a Liquid discharge head 571a Head 571b Liquid discharge head 571b Head 571c Liquid discharge head 571c Head 571d Liquid discharge head 571d Head 571e Liquid discharge head 571e Head 571f Liquid discharge head 571f Head 580 Maintenance mechanism 582 590 Side 591 Guide member 592 Guide member 593 Carriage 595 Modeling stage 596 X-axis scanning mechanism 597 Y-axis scanning mechanism 598 Z-axis scanning mechanism BC Transparent substrate BW White substrate C Curing ink C1 White ink C2 UV ink C3 Mixed ink CL Curing ink DIMG Image data DIS Projection distance I Modeling agent IMG Projection image L Modeling layer P Medium WL Wall

Japanese Unexamined Patent Publication No. 2014-180789

Claims (10)

A projection system including a projection medium on which an image is projected and a projection device that projects the image onto the projection medium.
The projected medium is
The white board part and
It is formed of either a white first droplet, a transparent color second droplet, or a third droplet that is a mixture of white and transparent color droplets, and is the maximum height from the surface of the substrate portion. With protrusions that are less than 10 mm
The projection device
A projection system including a projection unit for projecting the image. The protrusion is
Formed by the third droplet
The projection system according to claim 1, wherein the maximum height is 3 mm or less. The projection system according to claim 2, wherein the projection distance between the projection device and the projection medium is 3 meters or more. The protrusion is
Formed by the first droplet,
The projection system according to claim 1, wherein the maximum height is 1 mm or less. The protrusion is
Formed by the second droplet
The projection system according to claim 1, wherein the projection distance between the projection device and the projection medium is 1 meter or less. A projection system including a projection medium on which an image is projected and a projection device that projects the image onto the projection medium.
The projected medium is
The transparent board part and
It is provided with a protrusion formed of a second droplet of a transparent color and having a maximum height of 10 mm or less from the surface of the substrate portion.
The projection device
A projection system including a projection unit for projecting the image. A projected medium on which an image is projected
The white board part and
It is formed of either a white first droplet, a transparent color second droplet, or a third droplet that is a mixture of white and transparent color droplets, and is the maximum height from the surface of the substrate portion. A projected medium having a protrusion having a size of 10 mm or less. A projected medium on which an image is projected
A projected medium including a transparent-colored substrate portion and a projection portion formed of transparent-colored droplets and having a maximum height of 10 mm or less from the surface of the substrate portion. It is a manufacturing method performed by a manufacturing apparatus that manufactures a projected medium on which an image is projected.
The first step in which the manufacturing apparatus applies either a white first droplet, a transparent color second droplet, or a third droplet that is a mixture of white and transparent color droplets to a white substrate portion. When,
A manufacturing method including a second step in which the manufacturing apparatus forms a protrusion having a maximum height of 10 mm or less from the surface of the substrate portion by the first procedure. A program for causing a computer that manufactures a projected medium on which an image is projected to execute a manufacturing method.
With the first step, the computer applies either the first white droplet, the second transparent color droplet, or the third droplet, which is a mixture of white and transparent color droplets, to the white substrate portion. ,
A program for a computer to perform a second step of forming a protrusion having a maximum height of 10 mm or less from the surface of the substrate portion by the first procedure.

Images