JP2000338900A - Display device for three-dimensional stereoscopic image and method for displaying three-dimensional stereoscopic image - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a device and method for the display of a three-dimensional stereoscopic image. SOLUTION: The device is equipped with light sources Ld1, Ld2 which emit two two-dimensional laser light beams at a first wavelength and a second wavelength, a stereoscopic image display DP having distribution of a recording material which emits light by simultaneous irradiation of the beams, reflection mirror groups DMD1, DMD2 which reflect the laser light beams into reflected light beams Bm1, Bm2 based on a reflection patterns, a controlling means Cp31 for the pattern of the reflected light to change the reflection mirror group DMD1 corresponding to three-dimensional stereoscopic image signals to modulate the reflected light beam Bm1, and a controlling means Cp32 for the pattern of the reflected light which changes the reflection mirror group DMD2 into a reflection mirror of a single line to modulate the reflected light beams Bm2 and which updates the line to form a position of the planer crossing part of both of the reflected light beams Bm1, Bm2 at the different position in the stereoscopic image display DP.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a three-dimensional stereoscopic image display method and a three-dimensional stereoscopic image display device, and more particularly to a display device and a display method for displaying a three-dimensional image in a three-dimensional space.

[0002]

2. Description of the Related Art As a technique for seeking a three-dimensional display of an image or the shape of an object, a basic concept consistent with the prior art is to display a three-dimensional image of an object as an image on a plane screen. Therefore, various conventional technologies for displaying a stereoscopic image are all display devices having a two-dimensional display screen, that is, a two-dimensional display device such as a device using a cathode ray tube or a flat panel display device represented by a liquid crystal display panel. This has the common feature of displaying a pseudo three-dimensional image on a two-dimensional plane.

[0003] For example, in a conventional three-dimensional CG (computer graphics), a screen with a shadow (shading) is displayed on a display device having a two-dimensional display screen for a perspective view display, and an observer is displayed. It is based on the principle of recalling a solid.

[0004] Therefore, in the above-described shadow processing, gradual changes in color density called gradation, and techniques related to CG such as hidden line (elimination of hidden lines and hidden surfaces) techniques, all of the above-described pseudo three-dimensional images are used. It was based on the principle of displaying on a two-dimensional plane.

Further, the configuration for forming an image from the origin of projection, that is, the viewpoint position, also presupposes the principle of displaying the pseudo three-dimensional image on a two-dimensional plane.

On the other hand, as a principle different from the above-mentioned CG method, various proposals are made of a technique for reminiscent of a stereoscopic image based on the parallax of both eyes using the visual characteristics of an observer, for example, a stereogram. Has been tried.

Further, three-dimensional image display using a holographic technique has been variously proposed as a technique for reminiscent of a three-dimensional image based on the visual characteristics of an observer, and some of them have been put to practical use.

However, the principle of utilizing these visual characteristics is based on the premise that the observer has a simulated experience of a stereoscopic image as described above, and is not, in fact, a technology for truly displaying a stereoscopic image. Was. That is, the conventional 3
A stereoscopic image display method and display device, which is called a D (3-Dimension) image and has been put to practical use, displays a pseudo three-dimensional image on a two-dimensional planar screen. This is not a configuration in which a three-dimensional stereoscopic image is formed in a three-dimensional space region.

For this reason, as a best method for transmitting the actual form, three-dimensional structure, and sense of volume of an object to be displayed at present, a display method for actually forming a three-dimensional image in a three-dimensional space region, and Equipment has been required. Further, display of the moving image is required. When such a configuration can be realized, a plurality of observers located at different positions and having different viewpoints can simultaneously observe the stereoscopic image from each viewpoint. Moreover, it is possible to observe not only a still image but also a moving image.

By the way, such a three-dimensional three-dimensional image display method is not pseudo-three-dimensional by actually distributing minute parts forming a three-dimensional image in a three-dimensional space as colored or luminescent states. Several principle proposals have been made for implementing the original image.

The following are disclosed or known as such techniques, for example. a: Depth sampling formula (VARI FOCAL MIRR
(OR type, perturbation surface utilization type, HALF MIRROR type, rotating cylinder type, etc.) b: Display area layer type c: Volume display type

[0012] Of these, the depth sampling type has a problem in that the phantom image generation is remarkable due to its configuration, and the range of application is limited, and the display area layer type has a field of view similar to that of a conventional flat panel display. There was a problem that the angle was limited.

On the other hand, as a technique classified into a volume display type, for example, according to the contents disclosed in Japanese Patent Application Laid-Open No. Hei 5-2248608, a gaseous fluorescent luminous body excited to a high energy state by a laser beam is low. It is said that a fluorescent point is formed in a three-dimensional space by fluorescence in the visible region emitted when returning to the energy state, and a three-dimensional image is formed in the three-dimensional space region by sweeping the bright point in the three-dimensional space. .

As a display section for a three-dimensional stereoscopic image, a transparent container filled with a potassium-based gas is used, and two infrared laser beams having different wavelengths are irradiated to excite the gas at the intersection in two steps. To emit fluorescent light.

Further, regardless of the mechanical sweeping configuration of the laser beam, a laser diode array in which a large number of laser diodes are two-dimensionally arranged or two surface emitting laser devices are arranged at right angles to irradiate the laser diode. The proposal was to move the bright spot by sequentially driving.

According to another proposal, a rare-earth element is sealed in solid fluoride glass, and two lines of laser light are irradiated. When the excited rare earth element returns to a low energy level, it emits fluorescence in the visible region (fluoresc).
ence), a bright point is formed in the three-dimensional space, and the bright point is vector-swept in the three-dimensional space to form a wire-frame image in the three-dimensional space area, and the wire-frame image is temporally transitioned. By doing so, a three-dimensional moving image is formed. (Science Vol2
73, Aug1966, pp1185-1189)

[0017]

However, in the configuration using the two-dimensional arrayed laser diode array as a light source, the linear density of the luminescent spot for each orthogonal axis corresponds to the linear density of the arrayed laser diodes. Therefore, it is necessary to configure a two-dimensionally arrayed laser diode array with high density. However, it has been difficult to realize a configuration in which a large number of laser diodes are arrayed in a two-dimensional direction with a very small size. In addition, a drive amplifier will be prepared for each laser diode,
Further, there is a problem that miniaturization involves difficulty.

Further, in a configuration in which a wire frame image is formed in a three-dimensional space region by an intersection of two linear laser light beams, a large number of both linear laser light beams are used to paint a plane between the wire frames. Times, and a scanning mechanism that achieves a higher scanning speed (shorter scanning period) is required for each of the linear laser light beams, which is not practical for displaying a moving image. There was a problem.

Furthermore, the distance between the small-sized light source and each position in the large-sized display area is not uniform.
There was no way to solve the image distortion related to the irradiation position (or to the intersection position). In addition, the distance between the light source and the display area is configured to be large because of the principle, so that the size of the display area is small, but the volume of the entire apparatus is large. For this reason, if the display area of the image is enlarged and the distance between the light source and the display area is shortened on the one hand, the display area is widened and the volume of the entire apparatus is reduced. was there.

The present invention has been made to solve the above-mentioned problems in the prior art, does not require a mechanical sweeping mechanism, can reduce the size of the entire apparatus, and can be used from all angles. It is an object of the present invention to provide a three-dimensional stereoscopic image display device and a three-dimensional stereoscopic image display method that enable three-dimensional image observation.

[0021]

The principle and the gist of the present invention will be described below, terms used will be defined, and the means of the present invention will be further described.

According to the present invention, at least two laser lights having different wavelengths or at least two laser lights having the same wavelength are caused to cross a desired area in space at the same time by means of controlling an optical path. By irradiating a coloring material, which is an image forming substance, present in the region, a photochemical reaction is caused to cause coloration (emission or coloring), and the optical paths of these laser light beams are controlled so as to intersect with each other. The first principle is based on the principle of forming a three-dimensional three-dimensional image by successively coloring the coloring materials at the intersection by successively updating and forming the intersection at different positions one after another. is there.

According to the present invention, at least two laser lights having different wavelengths or at least two laser lights having the same wavelength are caused to cross a desired area in space at the same time by means of controlling an optical path. Irradiating the coloring material present in the region to excite electrons of the coloring material to a high energy level, and light emission of a wavelength corresponding to the energy difference when the excited electrons return to the low energy level. By controlling the optical paths of these laser light beams so that they intersect, correct the image distortion related to the intersection position, and further move the intersection position in a desired direction to a desired distance under the control of means for controlling the definition. Only by sweeping, the coloring material under the sweep is colored one after another, and the principle of forming a three-dimensional image of desired definition in a display area of desired dimensions is used as a second main point. Ah .

In the present invention, the phenomenon of light emission or coloring and the phenomenon of refraction in a transparent or translucent state are collectively defined as coloration. Therefore, in the present invention, a coloring material is defined as including a luminous body, a colored body, and a transparent or translucent body having a refractive index.

Here, a stereoscopic image unit for forming a three-dimensional stereoscopic image has a three-dimensional spread unlike a pixel or pixel which is a plane image unit defined for a conventional planar image. It is not appropriate to apply the pixel or pixel as a unit. Also, the image unit called voxel used in the conventional three-dimensional CG or the like is also a unit that has been mainly applied in the pseudo three-dimensional configuration on the two-dimensional image display. Not appropriate. As described above, there has been no appropriate term for expressing a stereoscopic image unit for forming a three-dimensional stereoscopic image as in the present invention.

Therefore, in the present invention, a stereoscopic image unit having a three-dimensional spread is defined as a cubic cell (Cubc). That is, a cubic cell (meaning cubic cell) with a three-dimensional micro basic region
Is defined as Therefore, the three-dimensional stereoscopic image according to the present invention is formed by a plurality of sets of cubic cells, which are image units having three-dimensional spread.

The three-dimensional stereoscopic image display apparatus according to the present invention has a configuration in which a plurality of cubic cells, which are image units having three-dimensional spread, are spatially formed.
Therefore, when depicting a moving image that transits over time,
A configuration in which a plurality of cubic cells as image units having three-dimensional spread are formed spatially and temporally.

Next, a description will be given of a configuration in which the cubic cell, which is a unit of the three-dimensional image, is treated as an information amount. A cubic cell is an image unit on the display of a three-dimensional stereoscopic image in the first place, and has information relating to the display of each part of an object (for example, luminance and color information of each part). Differently, each cubic cell has a true three-dimensional spread and has a one-to-one correspondence with each component of the real three-dimensional object which is the original image.

Therefore, it is possible to extend the cubic cell, which is a unit of a three-dimensional image, to have an attribute other than information relating to the display of each component of the actual three-dimensional object as an information amount. That is, the extended cubicel is provided with attribute data such as surface state and processing state such as refractive index and roughness, material, hardness, density, weight, and price, in addition to including luminance and color data. The extended information of each cubicel can be configured to be capable of processing information as a database.

Further, in the present invention, one three-dimensional stereoscopic image constituted by a set of cubic cells is defined as a cubit (Cubit: Cubic unit) in the present invention.

Next, a laser beam applied to the present invention will be defined. The laser light beam is a laser light beam emitted from a semiconductor laser diode, a solid-state laser device, or a gas laser radiation source, and the light intensity of the beam can be modulated based on an information signal.

The laser light beam applied to the present invention is a two-dimensional laser light beam. The two-dimensional laser light beam is
This is a laser light beam emitted from a two-dimensional light source and having a planar spread perpendicular to the traveling direction. The two-dimensional light source is realized, for example, as a set of laser oscillation elements arranged in a two-dimensional direction, or as a configuration in which a point beam is dispersed and discretely developed in a two-dimensional direction. In the present invention, these are described as two-dimensional laser light beams emitted from a surface light source.

In the present invention, each of the two-dimensional laser light beams is reflected by a set of minute reflecting mirrors, and this reflected light is introduced into a three-dimensional image display. The light intensity is modulated by a reflection pattern based on the signal. Such reflection based on the reflection pattern of the laser light beam is defined here as light intensity modulation.

Next, the sweep of the laser beam applied to the present invention will be defined. In the present invention, as described above, a light emitting state or a colored state is referred to as coloration, and furthermore, the coloration is achieved by electronic excitation by irradiation of at least two laser light beams, or the coloration is caused by a photochemical reaction. The material is a coloring material, and at least two laser light beams are used to selectively color one region, for example, a point, a line segment, or a surface, in the three-dimensional image display body in which the coloring material is dispersed. Are illuminated so as to intersect in the region of interest, and this intersecting portion is sequentially and alternately formed at different positions in the three-dimensional image display body with the passage of time, whereby an image is formed in the three-dimensional image display body.

Here, an optical path, which is the traveling direction of at least two laser light beams, which is swept while maintaining the orthogonal state in the stereoscopic image display is defined as orthogonal sweep.

Further, a layer sweep is defined. In the three-dimensional image display of the present invention, the three-dimensional display area formed in the three-dimensional image display body is configured by superimposing a two-dimensional image layer. A layer sweep (or layered sweep) is defined as forming a three-dimensional display area by overlapping a plurality of two-dimensional image layers by forming an image layer and repeating the forming operation of the two-dimensional image layer. I do.

That is, a plurality of columns each having a plurality of continuous cubic cells, a set of signals for forming a plane image arranged in chronological order is defined as one layer, and a plurality of layers are arranged in chronological order to form one qubit. Are configured.

Next, a three-dimensional stereoscopic image signal for forming a three-dimensional stereoscopic image will be described. In a conventional planar image display, a two-dimensional planar image is displayed by, for example, line scanning two-dimensionally. Therefore, a signal is obtained by arranging a plurality of one-dimensional line image (raster) signals in a time-series manner. It is composed. Alternatively, in vector scanning for displaying a planar image, a plurality of signals related to the start and end of two-dimensional scanning are arranged in time series.

On the other hand, the three-dimensional stereoscopic image signal applied to the stereoscopic image display by the layer sweep of the present invention forms a three-dimensional image by connecting a plurality of two-dimensional image signals in time series. Configuration.

Next, a display signal of a three-dimensional stereoscopic image having a temporal movement will be described. 2. Description of the Related Art Conventionally, display of a two-dimensional planar image having a temporal movement in planar image display has been expressed by a so-called moving image. In this method, a plurality of two-dimensional plane images are sequentially displayed while being updated within a unit time to form an image having a moving motion.

On the other hand, in order to display a moving three-dimensional stereoscopic image that transitions with time in the stereoscopic image display of the present invention, a plurality of three-dimensional stereoscopic images (ie, a plurality of qubits) are displayed within a unit time. By displaying sequentially while updating, a moving three-dimensional stereoscopic image is formed. This is defined as a three-dimensional moving image, or simply as a moving image, as corresponding to a moving image in conventional planar image display. Therefore, the display signal of the three-dimensional moving image is configured by arranging a plurality of display signals (display signals of one qubit) of each three-dimensional three-dimensional image in a time-series manner.

Hereinafter, the means according to the present invention will be described.

In order to solve the problems of the prior art based on the above principle, a three-dimensional stereoscopic image display device according to the present invention comprises:
A recording material that emits light by being simultaneously irradiated with a light beam having a predetermined first wavelength and a light beam having a predetermined second wavelength, a three-dimensional image display body distributed in a three-dimensional direction, and either one of the predetermined first light Wavelength, and the other is the predetermined second wavelength,
A light source that emits first and second two two-dimensional laser light beams having a cross section in the optical path direction of any emitted light having a two-dimensional direction, and a second light source that reflects the first two-dimensional laser light beam. One reflected light beam, a plurality of rotatable first reflector groups arranged in a two-dimensional direction, and a second reflected light beam by reflecting the second two-dimensional laser light beam A plurality of rotatable second reflector groups arranged in a two-dimensional direction, and the respective rotation angles of the first reflector group,
Given, the light intensity distributed in the two-dimensional direction of the first reflected light beam by changing corresponding to a three-dimensional stereoscopic image signal consisting of three-dimensional data related to each part of the three-dimensional, the three-dimensional A first reflected light pattern control unit that modulates in response to a stereoscopic image signal, and a reflection from a reflection mirror that forms a desired one row extending in a predetermined one-dimensional direction in the second reflection mirror group Second reflected light pattern control means for controlling each rotation angle so that light is on and reflected light from the reflecting mirrors forming all other rows is off, and the three-dimensional image in which the recording material is distributed First and second focusing optical systems for orthogonalizing the first and second reflected light beams within the display body, and wherein the second reflected light pattern control means includes an on-off switch in the second reflected light beam. And select the above column,
The planar intersection formed by the orthogonality of the first and second reflected light beams is formed at at least one of a plurality of predetermined positions inside the stereoscopic image display, and the selection is performed. The configuration is such that a column to be updated is updated.

According to the above configuration, the second reflected light beams arranged in a row by the reflecting mirrors of the second reflecting mirror group are converted into the first reflected light modulated by the three-dimensional stereoscopic image signal. The recording material located at the planar intersection formed by being orthogonal to the beam is irradiated by the two reflected light beams, so that the recording material that emits light is distributed in a two-dimensional direction with this irradiation. Then, the images are formed all at once, and the selected rows are sequentially updated, so that the next image is formed all at once on the planar intersection formed at a different position,
By repeating the above sequentially, a stereoscopic image is formed in the stereoscopic image display. Moreover, no mechanical sweep is required.

Further, the modulation by the three-dimensional stereoscopic image signal is performed at the time of reflection by the group of reflecting mirrors, so that the light source for emitting a laser beam is not modulated by the three-dimensional stereoscopic image signal, thereby simplifying the device configuration. .

Further, since the selected column is sequentially updated, the position in the three-dimensional image display is set.
Access to an arbitrary position in the three-dimensional image display body is performed with high accuracy and at high speed.

Further, by forming a three-dimensional image display area in which a plurality of surfaces are layered, a plurality of images having a complicated shape and a plurality of images to be displayed are independently separated in the three-dimensional image display body. Even when the image is dispersed, the imaging time is constant.

Further, in the three-dimensional stereoscopic image display method according to the present invention, the recording material which emits light by being simultaneously irradiated with the predetermined first wavelength light beam and the predetermined second wavelength light beam is distributed in the three-dimensional direction. For the three-dimensional image display body, one of them is the predetermined first wavelength and the other is the predetermined second wavelength, and the cross section in the optical path direction of the outgoing light has a two-dimensional spread. Using the first and second two two-dimensional laser light beam, the first two-dimensional laser light beam,
The first reflected light beam is reflected by a plurality of rotatable first reflecting mirrors arranged in a two-dimensional direction, and each rotation angle of the reflecting mirrors is given by a given solid part. The light intensity distributed in the two-dimensional direction of the first reflected light beam is modulated in accordance with the three-dimensional image signal composed of three-dimensional data according to the three-dimensional image signal. Then, the second two-dimensional laser light beam is reflected by a plurality of rotatable second reflecting mirror groups arranged in a two-dimensional direction to form a second reflected light beam, and The rotation angle is controlled so that the reflected light from the reflecting mirrors forming the desired one row extending in one dimension is turned on and the reflected light from the reflecting mirrors forming all other rows is turned off. The two reflections enter the three-dimensional image display body in which the recording material is distributed. Introducing a beam, controlling the optical path to make the two reflected light beams orthogonal to each other to form a planar intersection, and updating the column of the second reflected light beam that is turned on to another column. Thus, the planar intersection is formed at different positions inside the three-dimensional image display body, and this is repeated to form a three-dimensional image.

According to the above-described method, the second reflected light beams arranged in one row by the reflecting mirrors of the second reflecting mirror group are converted into the first reflected light modulated by the three-dimensional stereoscopic image signal. The recording material located at the planar intersection formed by being orthogonal to the beam is irradiated by the two reflected light beams, so that the recording material that emits light is distributed in a two-dimensional direction with this irradiation. Then, the images are formed all at once, and the selected rows are sequentially updated, so that the next image is formed all at once on the planar intersection formed at a different position,
By repeating the above sequentially, a stereoscopic image is formed in the stereoscopic image display. Moreover, no mechanical sweep is required.

Further, the modulation by the three-dimensional stereoscopic image signal is performed at the time of reflection by the group of reflecting mirrors, so that the light source for emitting a laser beam is not modulated by the three-dimensional stereoscopic image signal, thereby simplifying the device configuration. .

Further, since the position in the three-dimensional image display is set by sequentially updating the selected column,
Access to an arbitrary position in the three-dimensional image display body is performed with high accuracy and at high speed.

Further, by forming a three-dimensional image display area in which a plurality of surfaces are layered, a plurality of images having a complicated shape and a plurality of images to be displayed are independently separated in the three-dimensional image display body. Even when the image is dispersed, the imaging time is constant.

[0053]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. The embodiment described below is a part of a preferred example for showing the essential configuration and operation of the present invention, and therefore, various restrictions which are preferable in the technical configuration may be given. The scope of the invention is not limited to these embodiments unless otherwise specified in the following description.

In the three-dimensional stereoscopic image display apparatus according to the embodiment of the present invention, two two-dimensional laser light beams intersect in an orthogonal state, and the intersecting portions are sequentially formed at different positions, so that the intersecting surfaces are stacked. Is a configuration that forms a three-dimensional stereoscopic image.

FIG. 1 is a functional block diagram of one embodiment of a three-dimensional stereoscopic image display apparatus according to the present invention. FIG. 2 is a perspective view of the main part. 3 and 4 are operation timing charts of the present embodiment. FIG. 5 is a diagram for explaining the principle of drawing a three-dimensional stereoscopic image in the three-dimensional image display of the three-dimensional stereoscopic image display device.

As shown in FIGS. 1 and 2, the three-dimensional stereoscopic image display device ORIIN according to the embodiment of the present invention comprises:
A three-dimensional image display body DP in which a three-dimensional image is formed, a surface-emitting type laser element Ld1, which emits a first two-dimensional laser light beam Bm1 ′ having a cross section in the optical path direction of emitted light extending in two-dimensional directions, Reflects the two-dimensional laser light beam Bm1 ',
A first digital micromirror device DMD1 that converts the reflected light into a first reflected light beam Bm1 modulated by a three-dimensional stereoscopic image signal, and a process of giving a reflected light pattern as a control signal to the digital micromirror device DMD1. One reflected light pattern control means Cp31 is provided.

Further, a second two-dimensional laser light beam Bm2 'having a cross section in the optical path direction of the emitted light extending in a two-dimensional direction.
And a second two-dimensional laser light beam Bm2 'that reflects the surface light emitting laser element Ld2 that emits
A second digital micromirror device DMD2 for forming a reflected light beam Bm2,
There is provided second reflected light pattern control means Cp32 for giving the reflected light pattern as a control signal to the device DMD2.

The first reflected light beam Bm1 further reflected
Focusing optical system Lz1 for guiding the light to the three-dimensional image display DP, a second focusing optical system Lz2 for guiding the reflected second reflected light beam Bm2 to the three-dimensional image display DP, and a signal processing unit for processing the input image signal Cp1, a lamp Lmp for illuminating the inside of the three-dimensional image display body DP, and control means Cp2 for controlling the operation of the entire apparatus.
It is provided with.

The three-dimensional image display body DP has a transparent rectangular parallelepiped shape as shown in FIG. 5, and a three-dimensional image Vg is drawn therein. In the present invention, an arbitrary vertex out of the eight vertexes of the rectangular parallelepiped is defined as the origin O, and the three-axis orthogonal directions extending from the origin O are described as f-axis, d-axis, and h-axis, respectively. In this description, the f-axis is the frontage (fronta
ge), the d-axis is depth (depth), and the h-axis is height (h).
(Eight), which is for convenience of explanation, and the observation of the stereoscopic image Vg1 is performed not only from the surface corresponding to the frontage, but also from all other surfaces. Observable from an angle of Therefore, the present invention does not limit the viewing angle. Furthermore, the three-dimensional image display body DP is not limited to the illustrated rectangular parallelepiped shape, and may have any shape as long as it has a three-dimensional spread.

The three-dimensional image display body DP is composed of three sets of two pairs of faces. Of these faces, the face parallel to the fd plane and on the origin O side is parallel to the fd + and fd planes. The surface farther from the origin O is fd-, the surface parallel to the fh plane and the side closer to the origin O is fh +, the surface parallel to the fh plane and farther from the origin O is fh-, and the origin is parallel to the dh plane. The surface on the O side is dh +, and the surface parallel to the dh plane and far from the origin O is dh-.

In the three-dimensional image display body DP, a gaseous coloring material Cm is sealed in a transparent rectangular parallelepiped container, or a transparent liquid or solid matrix material Mx is filled. Inside, a transparent liquid or solid color material (core material) Cm is uniformly dispersed. That is, the coloring material composed of a gas, a liquid, a solid, or a combination thereof is uniformly dispersed in the three-dimensional direction. The material forming the container is preferably glass, acrylic resin, polycarbonate resin, hard styrene resin, or the like. If the matrix material Mx is solid, no container is required.

Of the dispersed coloring materials Cm, the digital micromirror device D emitted from the laser light source is used.
The coloring material Cm at the intersection (target point) TP between the first and second reflected light beams Bm1 and Bm2 reflected by the MD1 and DMD2 is expanded in two dimensions.
When the reflected light beam Bm1 and the band-shaped second reflected light beam Bm2 penetrating perpendicularly to the reflected light beam Bm1 were simultaneously irradiated with the light, a predetermined color was obtained, and the color was thus obtained. The minute area containing the coloring material is cubicel Cu
bc is formed. As described above, in the present invention, the state of coloring or coloring is referred to as coloring.

The planar intersection between the two reflected light beams Bm1 and Bm2 is formed to have a thickness of about several microns of the second reflected light beam Bm2 in the form of a strip. Moreover, the intersections are alternately formed at different positions sequentially with the passage of time.

The dimensions of the cubic cell Cubc in the f-axis direction and the h-axis direction are determined by the pattern accuracy of the first reflected light beam Bm1. Therefore, the cubic cell Cubc can be equivalently displayed as a rectangular parallelepiped having three sides Δf, Δd, and Δh.

In the case where the coloring material Cm is composed of fine particles having a submicron size or ultrafine particles having an average diameter of several tens to several nanometers, one cubicel C
There are many coloring materials Cm in the ubc. When the coloring material Cm is formed by ion implantation or the like, more coloring materials Cm exist in one cubicel Cubc.

As described above, the two reflected light beams Bm1,
The cubic cell Cubc is formed to extend in the two-dimensional direction on the planar intersection of Bm2, and the layer Ly of the surface of the cubic cell Cubc is formed. Further, the layer L
A plurality of layers of y are overlapped to form a display area, and a stereoscopic image Vg is formed in this display area.

The first irradiation light unit Leu1 has a wavelength of 1
A surface emitting laser element Ld1 for emitting a two-dimensional laser light beam Bm1 'of 064 nm and a laser diode drive amplifier Amp1 for driving the same are provided. The laser diode drive amplifier Amp1 receives a synchronization signal from the synchronization control circuit 15. During the period, it operates to control the operation of the surface emitting laser element Ld1 so that the light intensity becomes uniform.

The second irradiation light unit Leu2 includes a surface emitting laser element Ld2 for emitting a two-dimensional laser light beam Bm2 'having a wavelength of 532 nm, and a laser diode drive amplifier Amp2 for driving the same. Amp2 operates during the period when the synchronization signal from the synchronization control circuit 15 is input, and controls the operation of the surface-emitting type laser element Ld2 so that the light intensity becomes uniform.

In this case, the output light of the laser element Ld2 is 1
A configuration is also possible in which the wavelength is set to 064 nm and a two-dimensional beam having a half wavelength of 532 nm passes through the double harmonic conversion element SHG.

With the above configuration, two coherent beams having wavelengths of 1064 nm and 532 nm can be obtained.

The first reflected light pattern modulating means Cp31 is
A reflection pattern is created based on the three-dimensional stereoscopic image signal given from the D / A converter 13, and given as a drive signal dvs to the digital micromirror device DMD1. Since the three-dimensional stereoscopic image signal is updated every unit time described later, the reflection pattern is also updated every unit time and input to the digital micromirror device DMD1.

On the other hand, the second reflected light pattern modulation means Cp3
2 creates a reflection pattern based on the synchronization signal given from the synchronization control circuit 15 and gives it to the digital micromirror device DMD2 as a drive signal dvs.
This reflection pattern is a single row pattern, and is updated every unit time described later, and the row pattern is sequentially replaced with an adjacent row. Input to the micromirror device DMD2.

Each of the digital micromirror elements DMD1 and DMD2 is a light-reflection type device having a rectangular chip shape. A micromirror is formed immediately above each unit cell two-dimensionally arranged on a substrate, and all micromirrors are uniformly formed. The light is uniformly illuminated by the two-dimensional laser light beam Bm1 or Bm2 having a high light intensity, while the drive control circuit applies a drive signal corresponding to the reflection pattern to each unit cell to give an angle to each micromirror, thereby reflecting light. The direction of the light is changed for each micromirror, and the three-dimensional image pattern light is formed by the reflected light only in a predetermined direction.

Further, reflected light having different intensities is obtained by changing the number of tilts of each micromirror in a unit time in accordance with the image signal. Alternatively, reflected light having different intensities is obtained by changing the duty ratio.

The structure of the digital micromirror device DMD will be further described with reference to FIG. The digital micromirror device DMD has a plurality of micromirror surfaces m formed on a substrate sbt using semiconductor manufacturing technology.
ir are arranged in a two-dimensional direction. Each mirror surface mir
Reflects the irradiation light by individually changing the reflection angle according to the drive signal dvs input from the outside.

Therefore, by adjusting the individual reflection angle of each micromirror mir in accordance with the drive signal dvs on which a reflection pattern from the outside is applied, the reflection light emitted by the entire digital micromirror device DMD is reflected. It can be a light beam carrying a pattern.

Digital micromirror device DM
The drive signal dvs input to the D1 from the first reflected light pattern modulation unit Cp31 has a three-dimensional stereoscopic image signal as a reflection pattern as described above.

On the other hand, in the digital micromirror device DMD2, the drive signal dvs input from the second reflected light pattern modulating means Cp32 has a single row pattern as a reflection pattern as described above. .

Each rectangular minute mirror mi on the substrate sbt
r is an aluminum thin film dml whose diagonal dimension is, for example, 5
μm, and as shown in FIG.
It is supported by two columns dmp via cantilevers dmr provided at both ends of a diagonal line while floating from t. Below each micromirror mir, each micromirror mir
There is an electrode dme for driving the
Each micromirror mir has a maximum angle 2
It swings and rotates at 0 degrees. Therefore, the reflection angle of the reflected light can be shifted up to 20 degrees for each pixel.

The on / off switching speed of each micromirror mir is, for example, several microseconds or less. By oscillating by pulse driving, reflected light modulated to multi-gradation light intensity can be emitted. The cantilever dmr connecting the column dmp and the micromirror mir has a structure and a material that can excel in the characteristics of metal fatigue caused by repetitive twisting operations.

As described above, of the light reflected by the digital micromirror device DMD 1, only light of a specific direction is incident on the three-dimensional image display body DP, so that light and dark are multi-grayscale. The two-dimensional light beam on which the spatially distributed image is placed passes through the three-dimensional image display body DP as the first reflected light beam Bm1.

Also, of the reflected light reflected by the digital micromirror device DMD2, only the light of a specific direction is incident on the three-dimensional image display body DP, so that the belt-shaped reflected light beam is converted into the second reflected light beam. Bm2 penetrates the inside of the three-dimensional image display body DP. In particular, by sequentially updating the pattern of the row on the reflection pattern to the adjacent row, the strip-shaped reflected light beam is turned into the three-dimensional image display body D.
Positions penetrating through P move sequentially.

The first focusing optical system Lz1 has a laser element Ld
1 is positioned on the focal point, and the first focusing optical system L
The first reflected light beam Bm1 exiting from z1 is set as parallel light. Similarly, the second focusing optical system Lz2 sets the position of the laser element Ld2 at the focal point, and converts the second reflected light beam Bm2 exiting from the second focusing optical system Lz2 into parallel light.

The first reflected light beam Bm1 enters the three-dimensional image display DP from the surface fh + of the three-dimensional image display DP. Therefore, the mechanical components such as the first focusing optical system Lz1 are mainly disposed on the surface fh +.

On the other hand, the second reflected light beam Bm2 enters the three-dimensional image display DP from the surface fd− of the three-dimensional image display DP. Therefore, the mechanical components such as the second focusing optical system Lz2 are mainly disposed on the surface fd− side.

Here, the optical system is arranged such that the minimum angle θ that the two reflected light beams Bm1 and Bm2 extend at each intersection in the stereoscopic image display body DP is within the range of 86 ° ≦ θ ≦ 90 °.

Next, the signal processing section Cp1 will be described.
The signal processing unit Cp1 converts the modulated signal into the first reflected light pattern control unit Cp31 based on the input signal SG on which the data forming the three-dimensional stereoscopic image signal and the synchronization signal are input.
And sends a synchronization signal to the first irradiation light unit Leu1 and the second irradiation light unit Leu2, and further sends synchronization information to the control means Cp2.
s, encoding / decoding means 11, qubit memory 12,
It comprises a D / A converter 13, a recording means 14, a synchronization control circuit 15, and the like. The qubit memory 12 is a memory capable of storing qubit configuration data indicating one stereoscopic image in qubit units.

The encoded three-dimensional image signal input from the signal input terminal Is or reproduced from the recording means 14 is subjected to decoding processing by the encoding / decoding means 11 to obtain a D / A signal. The signal is converted into an analog signal by the converter 13. In this decoding process, the qubit memory 1
2 is used as a working memory.

When the three-dimensional stereoscopic image signal input from the signal input terminal Is is not coded,
The decoding process by the decoding means 11 is skipped. Also, the input three-dimensional stereoscopic image signal can be encoded by the encoding / decoding means 11 and recorded on the recording means 14.

The signal converted by the D / A converter 13 is input to the first reflected light pattern control means Cp31 as a three-dimensional stereoscopic image signal.

On the other hand, the signal converted by the D / A converter 13 is input to the synchronization control circuit 15, and the synchronization signal is converted into the first irradiation light unit Leu1 and the second irradiation light unit Le.
u2 and the second reflected light pattern control means Cp32. Further, this synchronization signal is sent to the control means Cp2 as synchronization information.

The lamp Lmp illuminates the inside of the three-dimensional image display body DP, and is turned on and off by the control means Cp2. This lamp Lmp is used as a coloring material in the three-dimensional image display body DP, for example, a photochemical reaction is caused by irradiation with laser light to change the molecular structure, thereby changing the state of outer shell electrons, and changing the state of infrared light or visible light. Provided in a three-dimensional stereoscopic image display device to which a photochromic material that is colored by irradiation with light is applied.

For example, when nitrospirobenzopyran is used as a coloring material, the portion where the photochemical reaction has progressed by irradiation with laser light is changed to photomerocyanine, and the wavelength is 532.
It emits red fluorescence under illumination with a light beam of nm.

Next, the coloring principle and coloring material will be described. In the present invention, a color is defined as including a coloring phenomenon and a coloring phenomenon. In color development, the coloring material emits light by itself,
It is colored by visible light emitted in association with excitation and relaxation of electrons. Coloring is to selectively reflect light of a specific wavelength by irradiation with external light to give a color.

In the present invention, a plurality of laser light beams having different optical paths are used in order to selectively color only the color material at the position of interest among the color materials spatially distributed. These are crossed at the position of interest, and the coloring material at the position is colored by utilizing the action of each energy of the plurality of laser light beams or the sum frequency mixing at the crossing portion. Therefore,
The coloring principle and coloring material applicable in the present invention must act on a plurality of laser light beams.

Therefore, there are the following types of coloring principles and coloring materials applicable to the present invention. a) Electron excitation / relaxation emission type The electron is excited to a high energy level by the irradiation of a laser light beam, and then emits visible light in the energy relaxation process. Becomes a-1 Multi-step Excitation Method By irradiating a plurality of laser light beams, electrons are sequentially multi-stepped to a high energy level through at least one intermediate energy level, and then, in this energy relaxation process, light in the visible region is emitted. Is emitted and light is emitted, and each of the plurality of laser light beams contributes to the excitation of each stage.

Among them, a two-wavelength two-stage excitation method (TSTF) in which atoms, molecules, or ions are excited by two laser light beams having different wavelengths, which is particularly suitable for displaying a three-dimensional image. Materials that emit visible light due to relaxation after two-step excitation with a laser beam of two wavelengths include potassium-based gases, rare-earth elements terbium and Er.
Is known as a special glass in which is doped into a fluoride glass.

Therefore, when two laser light beams of different wavelengths are crossed from different optical paths, only the two-stage excitation type coloring material at the intersection is irradiated with both laser light beams and is excited in two stages. Emits light.

A-2 Sum Frequency Mixing Method A plurality of laser light beams of different wavelengths are not excited by themselves, but are excited by sum frequency laser light generated by mixing and emit visible light by relaxation. Ultrafine silicon particles (Si-UFP), silicon oxide ultrafine particles, and titanium oxide ultrafine particles having a particle size of several nanometers are known.

Therefore, for example, when two laser light beams having different wavelengths intersect from different optical paths, the sum frequency mixing of both waves is performed only at the intersection, and only the color material at that position is generated. It is excited by receiving the irradiation of the laser light beam and emits light.

The silicon ultra-fine particle material (Si-UFP) and the silicon oxide ultra-fine particle material emit light of each color from red to purple due to the surface hydrogen treatment or the like. Therefore, for example, a light emitting material of three primary colors is embodied by Si-UFP or silicon oxide ultrafine particles subjected to such surface treatment.

B) Photochemical reaction type Irradiation of a laser beam in the infrared or far-infrared region or the ultraviolet region causes a photochemical reaction such as a ring-opening reaction to proceed, thereby changing the molecular structure. It is colored under light or emits light by irradiation with a laser beam after its molecular structure has changed. Therefore, the color in this case is emission of visible light or coloring. Here, there are multiphotons having different wavelengths, for example, a photochemical reaction proceeds by two photons of different wavelengths, and multiphotons having the same wavelength, for example, photochemical reactions proceeding by two photons of the same wavelength.

As such a photochemical reaction type coloring material, nitrospirobenzopyran and the like are known. Nitrospirobenzopyran has a wavelength of 1064 nm each.
And two laser light beams of 532 nm at the same time, the energy for the ring opening reaction is obtained by two-wavelength two-photon absorption to produce photomerocyanine, which is vivid blue or blue under visible light by the photomerocyanine. Color purple.

The photomerocyanine emits red fluorescence when excited by irradiation with a laser beam of 532 nm. Here, the laser beam to be irradiated may be a laser beam having a wavelength of 532 nm or two laser beams having a wavelength of 1064 nm.

The photomerocyanine formed as described above changes to the original nitrospirobenzopyran by irradiation with heat rays. Therefore, if the lamp Lmp is used to irradiate heat rays, the formed image of photomerocyanine can be erased. As a result, the layers can be sequentially deleted and updated.

In the present invention, any of the above-mentioned electronic excitation / relaxation emission type and photochemical reaction type principles can be applied. Further, as the material, any of a gas coloring material, a liquid coloring material, and a solid coloring material, or a material obtained by optionally mixing these materials can be used.

When a three-dimensional still image is displayed, when a coloring material having a binary effect that maintains the color state is applied for a long time, refresh rewriting is not necessary, but a material that does not maintain the color state for a long time is required. Then, refresh rewriting is required. In the case of a configuration in which refresh rewriting is performed, it is preferable to use a phosphor coloring material having a long afterglow time.

Next, the operation will be described. The surface emitting laser element Ld1 keeps oscillating and emits laser light while the synchronization signal is present. Two-dimensional laser light beam Bm1 'with uniform light intensity emitted from surface-emitting laser element Ld1
Is split by the beam splitter BS to reach the first digital micromirror element DMD1, and is reflected by the micromirrors as described above. Here, the first reflected light pattern control means Cp31 takes in the output from the DA / C 13 on which the three-dimensional stereoscopic image signal is loaded, and forms a control signal.

Each micromirror of the first digital micromirror device DMD1 is controlled by a drive signal on which a three-dimensional stereoscopic image signal from the first reflected light pattern control means Cp31 is loaded, thereby obtaining a three-dimensional stereoscopic image signal. Or the frequency per unit time. As a result, the two-dimensional laser light beam Bm1 ′ becomes a first reflected light beam Bm1 that is light-intensity-modulated by a three-dimensional stereoscopic image signal by reflection and spreads two-dimensionally.

In this way, fh is expanded in both axial directions.
The three-dimensional first reflected light beam Bm1 enters the three-dimensional image display body DP from the surface fh + of the three-dimensional image display body DP and penetrates the three-dimensional image display body DP in the d-axis direction.
The light intensity of m1 is updated and changed every update cycle τ according to the update of the three-dimensional stereoscopic image signal.

On the other hand, the surface emitting laser element Ld2 continues to oscillate while emitting the synchronization signal, and emits laser light.
The two-dimensional laser light beam Bm2 'having uniform light intensity emitted from the surface-emitting laser element Ld2 is split by the beam splitter BS, reaches the second digital micromirror element DMD2, and is reflected by the minute mirror. Here, each micromirror is a second reflected light pattern control means Cp32
Is controlled by a drive signal on which a reflection pattern in a row from is mounted, the designated one row of micromirrors changes its angle or changes the frequency per unit time. As a result, the light intensity of the two-dimensional laser light beam Bm2 'is modulated according to the reflection pattern by reflection, and becomes a second belt-like reflected light beam Bm2.

In this way, the belt-like second reflected light beam Bm2 enters the three-dimensional image display DP from the surface fd- of the three-dimensional image display DP, and penetrates the three-dimensional image display DP in the h-axis direction. However, the light intensity of the second reflected light beam Bm2 is updated and changed every time at the update period τ according to the update of the row pattern of the reflection pattern.

The band-shaped second reflected light beam Bm2 rising in the h-axis direction penetrates the two-dimensionally expanded first reflected light beam Bm1 traveling in the d-axis direction in the h-axis direction, thereby intersecting the two laser light beams. The portion becomes a plane parallel to the fh plane, and the coloring material located on this surface is colored by the action of both laser light beams.

More specifically, the control signals to the second digital micromirror device DMD2 organized by the second reflected light pattern control means Cp32 include two-dimensional directions constituting the DMD2. The instruction for updating the angle of each of the reflecting mirrors arranged in the table is placed. The control signal updates the angle of a predetermined one of the two-dimensionally arranged reflecting mirrors, and sequentially moves this row to an adjacent row as time passes.

That is, each micromirror mir in the first column of the second digital micromirror device DMD2
Are all angles at which the reflected light is directed in the direction of the three-dimensional image display body PD.
The reflected light beam Bm2 propagates. The band-shaped second reflected light beam Bm2 travels in the h-axis direction in the three-dimensional image display body PD, is reflected from the first digital micromirror device DMD1, and moves in the three-dimensional image display body PD in the d-axis direction. The layer which penetrates the first reflected light beam Bm1 orthogonally to the traveling first reflected light beam Bm1 and which is a planar intersection formed in this way forms a plane image. After the formation of this plane image is maintained for the unit time τ, then, at the next unit time τ, the band-like reflected light emitted from the row of adjacent reflecting mirrors causes the next time interval from the previously formed plane image at a predetermined interval. A planar image is formed. In this way, N planar images are sequentially formed in N times the unit time Nτ, so that one stereoscopic image is formed in the stereoscopic image display body PD.

During this time, the angles of the reflecting mirrors of the first digital micromirror device DMD1 are sequentially updated so as to sequentially generate N plane images, and the reflecting angles of the second digital micromirror device DMD2 are changed. Each reflector is
The angles are sequentially updated so that N strips of reflected light are sequentially generated. Since the image is formed by the logical product at the intersection of the two laser beams, the modulation of the light intensity by the three-dimensional stereoscopic image signal is performed only by the first reflected light beam Bm1 from the first digital micromirror device DMD1. It is not necessary to apply the modulation by the three-dimensional stereoscopic image signal to the band-like second reflected light beam Bm2 from the second digital micromirror device DMD2. That is, the second digital micromirror device DMD
The light intensity of the band-shaped second reflected light beam Bm2 from No. 2 may be uniform.

Incidentally, two planar light emitting laser elements L
Modulation by the three-dimensional stereoscopic image signal is not applied to d1 and Ld2, so that the output becomes uniform light emission. For example, light emission from the peripheral portion of the light emitting region is weaker than light emission from the central portion. Even if the characteristics are non-uniform, the digital micromirror devices DMD1 and DMD2 can make this compensation to uniformly correct the light intensity. That is, when obtaining a desired light intensity by alternating-vibrating the reflecting mirror, the unevenness of the emission of the laser element is corrected by adjusting the duty ratio. This means that the norm of the maximum reflected light of each reflecting mirror is adjusted by the duty ratio.

Next, the electron sweep will be described. The number of layers arranged in the d-axis direction of the three-dimensional display area is, for example, 1024 for each.
Then, one qubit is composed of 1024 layers. By forming all cubicels by layer formation, 1
In the case of a qubit, the first reflected light beam Bm1, which is a two-dimensional laser light beam, does not need to be swept, and only the light intensity modulation pattern needs to be updated with time.

On the other hand, if one electron sweep in the d-axis direction is performed from one end to the other end in the d-axis direction of the three-dimensional image display body DP, the second reflected light beam Bm2 needs d to generate one qubit. Only one electron sweep from one end to the other end in the axial direction is required, and a mechanical sweep as in the related art is unnecessary.

As described above, the two-dimensional first reflected light beam B
Since m1 simultaneously forms an image on a two-dimensional fh plane, which is a cross section, the first digital micromirror
It is only necessary to update the reflection image (reflection pattern) with the passage of time by the device DMD1, and there is no need to spatially sweep the first reflection light beam Bm1 itself. On the other hand, the band-shaped second reflected light beam Bm2 spreads in a band shape and intersects with the first reflected light beam Bm1 to form a planar image at a time. Therefore, at the time of drawing, the second digital micromirror device DMD2. It is only necessary to update the row pattern (reflection pattern) with the passage of time, that is, to perform the electron sweep, and thus the sweep operation is greatly simplified.

Accordingly, there is a remarkable effect that it is particularly easy to display a moving image whose image updating cycle is short.

For example, in the case of displaying a moving image at an update rate of 30 qubits per second, the second reflected light beam Bm2, which is a belt-like laser beam, may have an electron sweep rate of 30 times / second, and it is necessary to perform mechanical sweep. There is no.

As described above, in the present embodiment, the electron sweep cycle of the second reflected light pattern control means Cp32 for emitting the second reflected light beam Bm2 by reflection can be lengthened, and the mechanism can be simplified. Therefore, it is particularly suitable for the picture and display of moving images.

Next, the definition of an image in the present embodiment will be described. As described above, the definition in the f-axis direction and the h-axis direction is the first digital micromirror element DMD1.
Is dependent on the number of micromirrors mir in both axial directions. On the other hand, the definition in the d-axis direction depends on the number of micromirrors mir constituting the second digital micromirror element DMD2 in the d-axis direction. That is, it is determined by the number of rows formed in the d-axis direction on the digital micromirror element DMD2, which is formed by a series of micromirrors mir arranged at right angles to the d-axis direction. Furthermore, the critical definition in each axial direction is the individual dimension of the colorant used.

As a result of the above configuration, the layer Lyj (j = 1, 2,...) Is formed by the orthogonality of the two-dimensionally expanded first reflected light beam Bm1 and the band-shaped second reflected light beam Bm2.
Since ‥‥) is generated all at once in a unit time, image formation is performed with extremely high efficiency. In addition, since the electron sweep of the laser light beam is performed only on the second reflected light beam Bm2, the reliability of the displayed image is improved and the sweep mechanism can be simplified.

Further, a layer L extending over the entire display area
By forming a three-dimensional image display area in which yj (j = 1, 2,..., N) are overlapped by N layers, a plurality of images having a complicated shape and a plurality of images to be displayed independently exist. Also, the effect that the imaging time can be kept constant can be obtained even when the image is scattered and dispersed in the three-dimensional image display body.

The operation in displaying a moving image will be described with reference to FIGS. 3 and 4. During the unit time τ, the two-dimensional first
The reflected light beam Bm1 causes a beam that spreads in both directions fh to enter the three-dimensional image display body DP and travels at the speed of light, so that the three-dimensional image display body DP is instantly filled with the first reflected light beam Bm1.

The light intensity of the first reflected light beam Bm1 is modulated by the three-dimensional image signal SG, and the three-dimensional image signal SG is continuously updated every unit time τ. The three-dimensional stereoscopic image signal SG is discretely updated at a period of a unit time τ by being imaged by an imager having a finite number of pixels in a forming process and being serially formed on a time axis in a transmitting process. It has a configuration.

With this unit time τ as an update period of the three-dimensional stereoscopic image signal, during the first unit time τ, as shown in FIG. 3, the first reflected light beam Bm1 is converted into the stereoscopic image by the first stereoscopic image pattern Pt1. The display body DP is irradiated in the d-axis direction, and does not change during this period. On the other hand, the second reflected light beam Bm2 irradiates a band-shaped light beam in the h-axis direction at the position d1 in the d-axis direction, and does not change during this period. As a result, the band-shaped crossing surface formed at the d-axis direction position d1 by the first reflected light beam Bm1 and the second reflected light beam Bm orthogonally penetrating the first reflected light beam Bm1 is in the d-axis direction of the band-shaped second reflected light beam Bm. Has a thickness corresponding to the thickness of Therefore, the layer Ly1 of this thickness, which is colored by the coloring material, is generated.

At the next next unit time τ, the first reflected light beam Bm1 irradiates the three-dimensional image display body DP in the d-axis direction with the next pattern Pt2 of the three-dimensional image, and does not change during this period. . On the other hand, the second reflected light beam Bm2 irradiates a band-shaped light beam in the h-axis direction at the d-axis direction position d2,
There is no change during this period. As a result, the band-shaped intersection surface formed at the d-axis direction position d2 between the first reflected light beam Bm1 and the second reflected light beam Bm orthogonally penetrating the first reflected light beam Bm1 is in the d-axis direction of the band-shaped second reflected light beam Bm. Has a thickness corresponding to the thickness of Therefore, the layer Ly2 of this thickness, which is colored by the coloring material, is generated. Layer L
The distance between y1 and layer Ly2 is indicated by εd.

Thereafter, when the last layer LyN is generated in the same manner, the first qubit Cubit # 1 is formed. And the second qubit C continues after the flyback period
The process proceeds to the formation process of the Ubit # 2.

As one of suitable applications of the three-dimensional stereoscopic image display device according to the present embodiment, there are various stereoscopic moving images described below. a Display of a stereoscopic video on the receiving side of a television broadcast b Formation of a stereoscopic video of a tomographic image conventionally displayed as a planar image in the medical field, for example, X-ray CT or positron CT
Three-dimensional moving images of tomography, real-time three-dimensional moving images of the affected area during surgery and surroundings, c Moving images of three-dimensional layouts in architectural design,
Creation of 3D perspective images using moving images d Display of 3D magnified moving images in the mounting work, which was conventionally a microscope work, such as micro parts in the production process e.
3D moving image of images CF, 3D moving image display of dramas, movies, and games f Commercial use for displaying 3D stereoscopic images of products as moving images, used as show windows

In addition to the above three-dimensional moving images, there is another application for displaying a three-dimensional still image as follows.

First, in the field of clinical medicine and basic medicine, particularly in the field of examination and treatment, the formation of a stereoscopic tomographic image instead of a tomographic image that has been conventionally displayed as a planar image, for example, the X-ray CT or positron CT tomography. There is a display of a stereoscopic still image.

The second field of application of stereoscopic still images is the display of three-dimensional stereoscopic images of teaching materials in the educational field, especially in the course of study of each subject, and is particularly based on the multimedia technology of teaching materials in science, drawings and mathematics. This is effective for displaying various stereoscopic images. In particular, the configuration of the present embodiment is suitable for displaying a stereoscopic still image.

The third field of application of stereoscopic still images is in the design process in the design process of clothing and automobiles.
There is display of an image as a three-dimensional still image, creation of a three-dimensional perspective image (still image) in architectural design, and three-dimensional layout display.

A fourth field of application of stereoscopic still images is a large-scale multimedia entertainment field.
Display of large stereoscopic images in small theaters and concert halls,
There is a stereoscopic image display in an arcade game.

The fifth application field of the stereoscopic still image is a production site, which is suitable for displaying a three-dimensional still image in part design in a design process, displaying a stereoscopic still image in an industrial CT inspection in a production process, and the like.

[0139] Further, other application fields of the three-dimensional still image include a three-dimensional still image display of a simulation result in an academic research field, or a three-dimensional still image of a design image in the art and art production process, or Display and display as a three-dimensional still image of the work itself, that is, instead of modeling using materials such as clay, synthetic resin, wood, metal,
There are displays and exhibits of works reproduced on the three-dimensional stereoscopic image display device. Further, the present invention is suitable for a commercial use such as a so-called virtual show window in which a three-dimensional stereoscopic image display device is used as a show window to display a three-dimensional stereoscopic still image of a product.

Next, an embodiment of the three-dimensional stereoscopic image display method according to the present invention will be described. In the embodiment of the present three-dimensional stereoscopic image display method, light is emitted by simultaneously irradiating a light beam having a wavelength of 1064 nm (this is a first wavelength) and a light beam of 532 nm (this is a second wavelength). Nitrobenzospiropyran, which is a recording material to be illuminated, has a wavelength of 1064 nm with respect to a three-dimensional image display body distributed in a three-dimensional direction.
A first two-dimensional laser light beam having a cross-section in the optical path direction of emitted light extending in a two-dimensional direction;
Using a second two-dimensional laser light beam whose cross section in the optical path direction of the emitted light extends in a two-dimensional direction, the first two-dimensional laser light beam is converted into a plurality of rotatable reflectors arranged in a two-dimensional direction. The first digital micromirror device having a group reflects the light into a first reflected light beam, and the rotation angle of each reflecting mirror of the first digital micromirror device is set to a tertiary value related to each part of the solid. The light intensity distributed in the two-dimensional direction of the first reflected light beam is modulated according to the three-dimensional stereoscopic image signal by changing the three-dimensional stereoscopic image signal composed of the original data.

On the other hand, the second two-dimensional laser light beam is reflected by a second digital micromirror device having a plurality of rotatable second reflecting mirrors arranged in a two-dimensional direction. The reflected light from the reflecting mirrors that form two rows of reflected light and form the desired one row extending in the one-dimensional direction with the rotation angle of each reflecting mirror of the second digital micromirror device turned on. The rotation angle is controlled so that the reflected light from the reflecting mirrors forming all the other rows is turned off.

Furthermore, the first and second nitrobenzospiropyran are distributed as a recording material into the three-dimensional image display.
Introducing the reflected light beam, controlling the optical path, making the two reflected light beams orthogonal to form a planar intersection, and updating the above-mentioned column of the second reflected light beam, which is turned on, to another column. The planar intersection is formed at a different position inside the stereoscopic image display,
This is repeated to form a stereoscopic image.

As a result, the second reflected light beam formed in one row by the second digital micromirror device is orthogonal to the first reflected light beam modulated by the three-dimensional image signal. By irradiating the nitrobenzospiropyran located at the formed planar intersection with the two reflected light beams, a light emission image is formed at a stroke on the surface distributed in a two-dimensional direction with this irradiation .

Further, by successively updating the selected columns, the next image is formed at once on the planar intersection formed at a different position. By repeating the above procedure sequentially, a stereoscopic image is displayed. Formed in the body. Moreover, no mechanical sweep is required.

Further, the modulation by the three-dimensional image signal is performed at the time of reflection by the digital micromirror device, so that the light source for emitting the laser beam is not subjected to the modulation by the three-dimensional image signal, thereby simplifying the device configuration. Can be

Furthermore, since the position in the three-dimensional image display body is set by sequentially updating the selected column, an arbitrary position in the three-dimensional image display body can be accessed with high accuracy and at high speed.

Further, by forming a three-dimensional image display area in which a plurality of planes are layered, a plurality of images having a complicated shape and a plurality of images to be displayed are independently separated in the three-dimensional image display body. Even when the image is dispersed, the imaging time can be kept constant.

FIG. 9 is a block diagram of a system to which the three-dimensional stereoscopic image display device according to the present invention is applied. As shown in the drawing, a three-dimensional stereoscopic image display system ORN11 according to the present invention is a three-dimensional stereoscopic image signal generation system which is a means for organizing data including positional information of each part constituting a three-dimensional object to be displayed. An ORN 111, a transmission system ORN 112 which is a means for transmitting the organized data, and a three-dimensional which is a means for receiving the transmitted data and drawing a three-dimensional image in a three-dimensionally expanding display body based on the data. And an image display system ORN113.

The three-dimensional stereoscopic image signal generation system ORN111 is
Stereoscopic imaging means 1111 for imaging a stereoscopic object to be displayed
A three-dimensional image data generating unit 1112 for editing and generating data for forming a three-dimensional image signal based on a signal input from the three-dimensional imaging unit 1111; and a three-dimensional image data compression and error code encoder 1113. . 3
Dimensional image data compression and error code encoder 111
In 3, the image data is encoded and converted in a format suitable for transmission and recording.

In addition to the above, it is also possible to provide a converter 1114 for converting the three-dimensional CG data into data for forming a three-dimensional image signal.

Further, in addition to the above, it is also possible to adopt a configuration further comprising a data recording means 1115 for forming a three-dimensional stereoscopic image signal. The recording unit 1115 records data forming a three-dimensional stereoscopic image signal that has been encoded and converted by the three-dimensional image data compression and error code encoder 1113, and also receives data from the three-dimensional image data generation unit 1112 and the converter 1114. It is also possible to record data directly. The recording means 1115 has a data recording function and a data reproducing function.

Here, the data forming the three-dimensional stereoscopic image signal includes attribute information of each part, such as color tone, light and shade, gloss,
Information such as refractive index, material, density, and weight is included.

In this way, the data forming the three-dimensional stereoscopic image signal including the attribute information is encoded and released from the three-dimensional stereoscopic image signal generation system ORN111,
The data is transmitted via the transmission system ORN 112.

The three-dimensional image display system ORN 113 is a transmission system OR.
Data decoding / error correction means 113 for performing decoding and error correction based on the three-dimensional stereoscopic image signal received from N112
1, a modulation / driving unit 1132 that modulates and drives the laser oscillator based on the three-dimensional stereoscopic image signal received from the data decoding / error correcting unit 1131, and a laser beam under the control of the modulation / driving unit 1132. A laser diode Ldp emitted and an optical path control unit 1134 for controlling the optical path of the laser light beam emitted from the laser diode Ldp.
And a three-dimensional image display body DP113 that forms an image by coloring a coloring material with energy caused by the intersection of a plurality of laser light beams whose optical paths are controlled by the optical path control unit 1134.

In addition to the above, image data recording means 1
135 may be provided. Recording means 11
Reference numeral 35 denotes a unit capable of recording a three-dimensional stereoscopic image signal received from the data decoding / error correction unit 1131 and a transmission system ORN1.
The three-dimensional stereoscopic image signal received from 12 is directly recordable.

As described above, in the three-dimensional stereoscopic image display system ORN11, means for compressing data prior to execution of the means for transmitting data for forming a three-dimensional stereoscopic image signal, and restoration processing after reception of the compressed data And means for performing the following. FIG. 10 is a conceptual diagram of an example of such signal processing in the three-dimensional stereoscopic image display system ORN11.

The figure shows, as an example, the spatial compression between the three-dimensional distribution cubic cells Cubc constituting the qubit Cubit #N at a certain time, that is, the processing by the inner qubit and the qubit Cu at another time.
This conceptually illustrates time-differential compression between bit # N + 1, that is, processing by inter-qubit.

By the way, the data processed according to the data compression principle applied to the conventional two-dimensional plane image or pseudo three-dimensional image includes various information such as a quantization table at the time of encoding and encoding information such as a motion vector. These are attached to the coded stream and transmitted, and thus the image compression data is exchanged between the devices.

On the other hand, in displaying a three-dimensional stereoscopic image, for example, data forming a three-dimensional stereoscopic image signal is divided into a plurality of clusters divided in a three-dimensional space direction and a time direction.
An encoding / decoding algorithm that surpasses the function of the MPEG method in a plane image, such as encoding and decoding a plurality of image data streams generated by mirror image processing and convolution operation in parallel, has been developed. There is no doubt that it needs to be newly applied as a data compression / transmission technique for forming a three-dimensional stereoscopic image signal.

As described above, in the present system, a large amount of data due to the three-dimensional position information and the attribute information of each part is applied to the conventional two-dimensional plane image compression principle and the pseudo three-dimensional image. Data compression principle,
A new application of the principle of spatial / temporal compression of the data forming the true three-dimensional stereoscopic image signal can be reduced, and in particular the data transmission means can be simplified.

As described above, by means of the three-dimensional stereoscopic image display system ORN11, means for drawing a three-dimensional image in the display body which extends in the three-dimensional direction is changed from data organizing means to data transmitting means and to data reception and image display. Up to the means of
It becomes possible to provide consistently.

That is, the three-dimensional stereoscopic image display system OR
The effect of N11 is that it is possible to realize a consistent device group that reproduces even the attribute information in a space extending in the three-dimensional direction.

Further, since the data forming the three-dimensional stereoscopic image signal includes attribute information in addition to the position information, the data is not limited to the display of the contour and shape of the three-dimensional image, but also the gloss and the tone of each part as well as the color tone and shading. First, it is possible to reproduce even the refractive index of each part.

For example, by applying a non-linear optical material whose refractive index changes by applying light energy or the like to the coloring material dispersedly arranged in the three-dimensional image display body DP113, it responds to an image signal by light irradiation. Thus, the refractive index of the portion of interest can be changed.

For example, when a camera having a lens having a higher light refractive index than air is imaged as a three-dimensional object to be displayed, a conventional pseudo-stereoscopic three-dimensional stereoscopic image display device such as a stereogram reproduces even the refractive index of the lens. It was never done.

On the other hand, according to the three-dimensional stereoscopic image display system ORN11 according to the present invention, the lens portion of the camera, which is imaged in the stereoscopic image display body DP113, is reproduced to the refractive index by the coloring material made of the nonlinear optical material. As a result, in the rendered three-dimensional image, the rear portion of the lens is actually observed by being enlarged or reduced by the action of the lens. Such an effect has not been realized in the conventional three-dimensional stereoscopic image display system.

The change in the light refractive index as described above is effective not only in reproducing a stereoscopic image but also in producing a special effect in a general display.

In the above description, the attribute is particularly limited to the light refractive index. However, the present invention is not limited to the light refractive index, and similar effects can be realized for other attributes.

Next, the function and operation of the recording means will be described. As described above, the three-dimensional stereoscopic image display system ORN11 includes the recording unit 1115 in the three-dimensional stereoscopic image signal generation system ORN111 and the recording unit 1135 in the three-dimensional image display system ORN113. The recording unit 1115 and the recording unit 1135 may be provided with at least one of them.

By the functions of the recording means 1115 and 1135, the data organization time and the data reproduction time can be made independent, so that the data organization can be executed and recorded at any time, In time, the data organizing means reproduces and transmits this record, while the data receiving side can immediately display a picture based on the reproduced data or record it again at the data receiving side. Note that the data is short for data forming a three-dimensional stereoscopic image signal, and the same applies hereinafter.

Furthermore, by recording the compressed data after the data is compressed, the enormous amount of data due to the inclusion of the three-dimensional position information and the attribute information of each part can be reduced by the compression. Not only the configuration of the means is simplified, but also the time required for recording can be reduced.

The three-dimensional stereoscopic image display system according to the present invention is particularly suitable for use, first of all, in the field of clinical medicine and basic medicine, especially in the field of examination and treatment, in place of a tomographic image conventionally displayed as a planar image. There is the formation of a still image, for example, the display of a stereoscopic still image of an X-ray CT or a positron CT tomography.

The second field of application is the display of three-dimensional stereoscopic images of teaching materials in the education field, particularly in the course of study of each subject, and in particular, various stereoscopic images based on the multimedia technology of teaching materials in science, drawing and mathematics. Effective for display. In particular, the configuration of the present embodiment is suitable for displaying a stereoscopic still image.

The third field of application is to display a design image as a three-dimensional still image in a design process such as clothing and automobiles, and to create a three-dimensional perspective image (still image) in architectural design. There is a three-dimensional layout display.

The fourth field of application is the field of multimedia entertainment, which is the display of large stereoscopic images in large and small theaters and concert halls, and the display of stereoscopic images in arcade games.

The fifth field of application is a production site, which is suitable for displaying a three-dimensional still image in designing parts in the designing process, displaying a stereoscopic still image in an industrial CT inspection in the manufacturing process, and the like.

Further, as other application fields, a three-dimensional still image display of a simulation result in an academic research field,
Alternatively, instead of displaying and displaying a three-dimensional still image of the design image in the art or art production process, or a three-dimensional still image of these works themselves, that is, instead of modeling using materials such as clay, synthetic resin, wood, metal, There are displays and exhibits of works reproduced on the three-dimensional stereoscopic image display device. Further, the present invention is suitable for commercial use such as a so-called virtual show window in which a three-dimensional stereoscopic image display device is used as a show window to display a three-dimensional stereoscopic image of a product as a moving image or a still image.

[0178]

As described in detail above, claim 1 of the present invention
The three-dimensional stereoscopic image display device according to the three-dimensional image display body in which the recording material that emits light when simultaneously irradiated with two light beams of the first wavelength and the second wavelength, the first wavelength and the second wavelength A light source that emits two two-dimensional laser light beams, and first and second reflections that reflect these two two-dimensional laser light beams into first and second reflected light beams based on a reflection pattern. Mirror group, first reflected light pattern control means for modulating the first reflected light beam by changing the angle of the first reflecting mirror group according to the three-dimensional stereoscopic image signal, and the second reflecting mirror group Second reflected light pattern control means for modulating the second reflected light beam by changing the angle based on the reflection pattern on which one row is placed, wherein the second reflected light pattern control means updates the selected row 3D image display of the position of the planar intersection formed by both reflected light beams It is intended to form the different positions of the inner.

Since the two-dimensional laser light beam simultaneously forms an image on a two-dimensional plane which is a cross section, as a result, the first reflected light beam only needs to update the image with the lapse of time at the time of image formation. There is no need to sweep mechanically. on the other hand,
Since the position of the second reflected light beam changes only by updating the reflection pattern, planar images can be sequentially formed at different positions without mechanically applying a sweep, thereby forming a plurality of planar images. The three-dimensional images stacked in layers can be formed inside the three-dimensional image display.

By not performing the mechanical sweep in this way, there is a remarkable effect that it is particularly easy to display a moving image with a short image update cycle.

Further, as described above, since the light beam is modulated by the reflection mechanism and does not modulate the output of the laser element, the structure of the drive circuit and the laser element can be simplified. .

In addition, by forming a three-dimensional image display area in which a plurality of surfaces are sequentially stacked in layers, a plurality of images having a complicated shape and a plurality of images to be displayed are independently formed in the three-dimensional image display body. In addition, even in the case where the image is dispersed at a distance, the effect of making the imaging time constant can be obtained.

A three-dimensional stereoscopic image display method according to claim 2 of the present invention is directed to a three-dimensional image display body in which recording materials that emit light when simultaneously irradiated with two light beams of a first wavelength and a second wavelength are distributed. On the other hand, using two two-dimensional laser light beams of the first wavelength and the second wavelength, these two two-dimensional laser light beams are reflected by the first and second reflecting mirror groups, respectively, and the first and the second are reflected. A second reflected light beam, and a modulation for changing each angle of the first reflecting mirror group according to the three-dimensional stereoscopic image signal is applied to the first reflected light beam, and one of the second reflecting mirror groups is modulated. Each angle is controlled so that the reflected light from the reflecting mirrors forming the row of columns is turned on and the reflected light from the reflecting mirrors forming all the other rows is turned off. Are perpendicular to each other to form a planar intersection, and the second reflected light beam,
The row to be turned on is updated to another row to form a planar intersection at a different position, and this is repeated to form a stereoscopic image.

Since the two-dimensional laser light beam simultaneously forms an image on a two-dimensional plane which is a cross section, as a result, the first reflected light beam only needs to update the image with the passage of time at the time of drawing. There is no need to sweep mechanically. on the other hand,
Since the second reflected light beam changes its position only by updating the column to be turned on in the second mirror group to another column, the planar image is sequentially changed without mechanically sweeping. Position, whereby a three-dimensional image in which a plurality of planar images are layered can be formed inside the three-dimensional image display.

By not performing the mechanical sweep as described above, there is a remarkable effect that the display of a moving image having a short image update cycle becomes particularly easy.

Further, as described above, the light beam is modulated by the reflecting mirror and does not modulate the output of the laser element, so that the structure of the drive circuit and the laser element can be simplified. .

In addition, by forming a three-dimensional image display area in which a plurality of surfaces are sequentially stacked in layers, a plurality of images having a complicated shape and a plurality of images to be displayed can be independently formed in the three-dimensional image display body. In addition, even in the case where the image is dispersed at a distance, the effect of making the imaging time constant can be obtained.

[Brief description of the drawings]

FIG. 1 is a functional block diagram according to an embodiment of a three-dimensional stereoscopic image display device of the present invention.

FIG. 2 is a perspective view showing a main configuration of the three-dimensional stereoscopic image display device shown in FIG.

FIG. 3 is an irradiation timing chart of first reflected light in the three-dimensional stereoscopic image display device according to the first embodiment of the present invention.

FIG. 4 is an irradiation timing chart of second reflected light in the three-dimensional stereoscopic image display device according to the first embodiment of the present invention.

FIG. 5 is an explanatory diagram of a display principle according to the embodiment of the three-dimensional stereoscopic image display device of the present invention.

FIG. 6 is a perspective view of a main part of a digital micromirror device applied to the three-dimensional stereoscopic image display device of the present invention.

FIG. 7 is a partial cross-sectional view of the digital micromirror device shown in FIG.

FIG. 8 is an enlarged plan view of a micro-reflector of the digital micro-mirror device shown in FIG. 6;

FIG. 9 is a block diagram of a three-dimensional stereoscopic image display system to which the three-dimensional stereoscopic image display device according to the present invention is applied.

FIG. 10 is a conceptual diagram of an example of signal processing in the three-dimensional stereoscopic image display system shown in FIG.

[Explanation of symbols]

ORIIN1 ... three-dimensional stereoscopic image display device, Cp1 ... signal processing unit, Cp2 ... control means, Cp31 ... first reflected light pattern control means, Cp32 ... second reflected light pattern control means, 11 ... encoding / Decoding means, 12 qubit memory, 13 D / A converter, 14 recording means, 15 synchronization control circuit, Amp 1 laser diode drive amplifier, Bm 1 first reflected light beam, Bm2
... Second reflected light beam, Bs... Beam splitter, C
ubc: Cubicell, DMD1: Digital micromirror device, DMD2: Digital micromirror device, DP: Stereoscopic image display, Is: Signal input terminal, Leu1: First irradiation light unit, Leu
2 ... second irradiation light unit, Lmp ... lamp, Ld1
... Surface-emitting laser element, Ld2 Surface-emitting laser element, Lz1 First focusing optical system, Lz2 Second focusing optical system, SHG Optical second harmonic generator, SG Tertiary Original stereoscopic image signal, f: first axis of three-axis rectangular coordinate system, d: second axis of three-axis rectangular coordinate system, h: third axis of three-axis rectangular coordinate system

Claims (8)

[Claims] 1. A three-dimensional image display body in which a recording material that emits light by being simultaneously irradiated with a light beam having a predetermined first wavelength and a light beam having a predetermined second wavelength is a three-dimensional image display body. The first wavelength is the predetermined first wavelength, and the other is the predetermined second wavelength, the first and second two-dimensional laser light beams each having a two-dimensional direction in a cross section in the optical path direction of emitted light. A plurality of rotatable first reflecting mirror groups arranged in a two-dimensional direction, reflecting the first two-dimensional laser light beam to form a first reflected light beam; and A plurality of rotatable second reflecting mirrors arranged in a two-dimensional direction, reflecting the second two-dimensional laser light beam as a second reflected light beam; and Each rotation angle is set to a three-dimensional data consisting of three-dimensional data for each given part of the solid. A first reflected light pattern control unit that modulates the light intensity distributed in the two-dimensional direction of the first reflected light beam by changing the first reflected light beam in accordance with the original three-dimensional image signal in accordance with the three-dimensional image signal; Of the second reflecting mirror group, the reflected light from the reflecting mirrors forming a desired single row extending in a predetermined one-dimensional direction is on, and the reflecting mirrors forming all other rows are turned on. A second reflected light pattern control means for controlling each rotation angle so that reflected light is turned off, and a first orthogonalizing the first and second reflected light beams in the three-dimensional image display body in which the recording material is distributed. First and second focusing optical systems, and the second reflected light pattern control means selects the row to be turned on in the second reflected light beam, and selects the first and second Planar intersection formed by orthogonality of reflected light beam Is formed at least one of a plurality of predetermined positions inside the stereoscopic image display,
The three-dimensional stereoscopic image display device is characterized in that the column to be selected is updated. 2. A recording material, which emits light by being simultaneously irradiated with a light beam having a predetermined first wavelength and a light beam having a predetermined second wavelength, is provided on a three-dimensional image display body distributed in a three-dimensional direction. One is the predetermined first wavelength and the other is the predetermined second wavelength, both of which are first and second two-dimensional lasers each having a cross section in the optical path direction of the emitted light having a two-dimensional direction. Using a light beam, the first two-dimensional laser light beam is reflected by a plurality of rotatable first reflecting mirrors arranged in a two-dimensional direction to form a first reflected light beam, and Distribution of the first reflected light beam in the two-dimensional direction by changing each rotation angle of the mirror group corresponding to a three-dimensional stereoscopic image signal composed of three-dimensional data relating to a given part of the three-dimensional body. Light intensity is modulated in accordance with the three-dimensional stereoscopic image signal. The second two-dimensional laser light beam is reflected by a plurality of rotatable second reflecting mirror groups arranged in a two-dimensional direction to form a second reflected light beam, and among the reflecting mirror groups, The rotation angle is controlled so that the reflected light from the reflecting mirrors forming the desired one row extending in the one-dimensional direction is on, and the reflected light from the reflecting mirrors forming all other rows is off. Introducing the two reflected light beams into the three-dimensional image display in which the recording material is distributed, controlling an optical path to make the two reflected light beams orthogonal to form a planar intersection, and In the second reflected light beam, the above-mentioned row to be turned on is updated to another row, and the planar intersection is formed at a different position inside the three-dimensional image display body, and this is repeated to form a three-dimensional image. A method for displaying a three-dimensional stereoscopic image. 3. The three-dimensional stereoscopic image display device according to claim 1, wherein the recording material is nitrobenzospiropyran. 4. The tertiary recording medium according to claim 1, wherein the recording material contains at least one of ultrafine silicon particles, ultrafine silicon oxide particles, and ultrafine titanium oxide particles having a particle size of 35 nanometers or less. Original 3D image display device. 5. An irradiating means for irradiating the inside of the three-dimensional image display body with a light ray in a visible light region or a light beam in an infrared region including a heat ray while forming at least the three-dimensional image inside the three-dimensional image display body. The three-dimensional stereoscopic image display device according to claim 1, wherein: 6. The method according to claim 2, wherein the recording material is nitrobenzospiropyran. 7. The tertiary recording medium according to claim 2, wherein the recording material includes at least one of silicon ultrafine particles, silicon oxide ultrafine particles, and titanium oxide ultrafine particles having a particle size of 35 nanometers or less. Original 3D image display method. 8. The stereoscopic image display is formed by irradiating the inside of the stereoscopic image display with a light beam in a visible light region or a light beam in an infrared region including a heat ray while forming at least the three-dimensional image inside the three-dimensional image display body. The three-dimensional stereoscopic image display method according to claim 2.