JP2000221871A - Method and device for formation of holographic stereogram - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase the recording and reproducing speed of a holographic stereogram of a stereoscopic image by selecting a group of shutter arrays and recording images with parallax. SOLUTION: Two-dimensional images with parallax corresponding to the position of microelement holograms in a holographic stereogram are displayed on a spacial optical modulation device to spatially modulate coherent collimated rays 103 to project the images on a diffusion plate 25. One shutter of a microlens array 16 having shutter arrays 17 is opened for the scattered rays to selectively focus the rays as the objective light on a photosensitive recording medium 18. One shutter of a shutter array 23 synchronized with the shutter array 17 is opened for coherent referential collimated rays 104 to illuminate the recording medium at the same position as the objective rays to interfere to produce interference fringes and to record a microelement hologram 26 of the holographic stereogram on the photosensitive recording medium 18. Thus, images with parallax are displayed in the spacial optical modulation device 15, and the set of shutter arrays 17, 23 corresponding to each other is successively selected to successively record the images with parallax.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for easily and quickly creating and recording a three-dimensional holographic stereogram, and in particular, to a three-dimensional CAD (Computer A).
ided Design, magnetic resonance imaging (Magnetic
The present invention relates to a technology effective when applied to stereoscopic image display in the medical field such as Resonance Imaging (MRI).

[0002]

2. Description of the Related Art Some recording / reproducing apparatuses for three-dimensional stereoscopic images using holograms using a computer have been proposed as "computer holograms". They output, for example, a hologram created on a computer by a printer or a plotter, and optically reduce the output grayscale image and transfer it to a photosensitive film (AWLohmann, DPPar)
is, Appl. Opt. 6, 1739 (1967), WHLee, Appl. Opt.
9, 639 (1970)). However, because of the two-stage method of outputting the image to a printer and optically reducing it, high-speed recording cannot be performed, and the utility is poor.

[0003] A method of displaying interference fringes of a hologram itself using an electrically driven liquid crystal panel (N. Ha
Shimoto, S. Morokawa, SID95 Digest, p. 847), but it is difficult to obtain a stereoscopic image with a large viewing angle because the pixels of the liquid crystal panel are large compared to the wavelength of incident light and the number of pixels is small.

On the other hand, a holographic stereogram is a hologram synthesized from a large number of two-dimensional images having parallax, and is widely used as a technique capable of reproducing a natural stereoscopic image with a wide field of view.

[0005] This holographic stereogram is
The original image is obtained by taking a number of three-dimensional photographs with different viewing directions, and the original image is projected onto a film having slit-shaped windows with coherent light (hereinafter referred to as coherent light) to interfere with the reference light. A plurality of stripe-shaped holograms are formed by moving a film while sequentially replacing original images, and are known as multiplex holograms.

By irradiating the multiplex hologram thus formed with an appropriate reproducing beam, a three-dimensional stereoscopic image is reproduced.

[0007] As an original image of the holographic stereogram, an image displayed on a liquid crystal panel is used to form an image on a photosensitive recording medium by a lens system, and is irradiated with a reference light, so that a fine element There is a method for recording holograms (M. Yamaguchi, et al., Appl. Opt.
31, 217 (1992)).

[0008]

In the holographic stereogram, dot-like microelement holograms are arranged vertically and horizontally, so that parallax in the up, down, left, and right directions can be maintained, and is ideal for three-dimensional stereoscopic display. However, since micro-element holograms are recorded while mechanically moving the photosensitive recording medium up, down, left, and right, a mechanism for driving the photosensitive recording medium in a two-dimensional manner is required, and the device becomes large.

Further, since the photosensitive recording medium is moved two-dimensionally, it takes a long time to record.

An object of the present invention is to provide a three-dimensional display method and apparatus for displaying a three-dimensional image by a holographic stereogram, wherein a three-dimensional image holographic image having both upper, lower, left, and right parallaxes by simply moving a photosensitive recording medium in one direction. It is an object of the present invention to provide a technology capable of recording and reproducing a stereogram at high speed.

The above and other objects and novel features of the present invention will become apparent from the description of the present specification and the accompanying drawings.

[0012]

SUMMARY OF THE INVENTION Among the inventions disclosed in the present application, the outline of a representative one will be briefly described.
It is as follows.

(1) A plane image having a parallax corresponding to the position of the small element hologram of the holographic stereogram is displayed on a spatial light modulator, and a coherent parallel light beam is spatially modulated by the displayed image to a diffusion plate. One of the microlens arrays having the first shutter array is opened to selectively form an image on the photosensitive recording medium by projecting the scattered light from the diffuser plate, and selectively forming an image on the photosensitive recording medium. The two shutters are opened in synchronization with the opening operation of the shutters of the first shutter array, and coherent reference parallel light is irradiated to the same position as the scattered light (object light) formed as an image to cause interference, and the photosensitive recording is performed. The micro-element hologram of the holographic stereogram is recorded on the medium, and images with parallax are sequentially displayed on the spatial light modulator, and the corresponding 1 and the second one after another to select a set of shutter array, a sequential holographic stereogram producing method of recording images with parallax without moving the photosensitive recording medium.

(2) A plane image having parallax corresponding to the position of the microelement hologram of the holographic stereogram is displayed on the spatial light modulator, and the displayed image is used to spatially modulate a coherent parallel light beam to a diffuser. One of the microlens arrays having the first shutter array is opened to selectively form an image on the photosensitive recording medium by projecting the scattered light from the diffuser plate, and selectively forming an image on the photosensitive recording medium. The two shutters are opened in synchronization with the opening operation of the shutters of the first shutter array, and coherent reference parallel light is irradiated to the same position as the scattered light (object light) formed as an image to cause interference, and the photosensitive recording is performed. The micro-element hologram of the holographic stereogram is recorded on the medium, and images with parallax are sequentially displayed on the spatial light modulator, and the corresponding 1 and the second one after another to select a set of shutter array, after recorded sequentially photosensitive recording medium an image with parallax, were recorded microelements hologram one row,
This is a holographic stereogram creating method in which a photosensitive recording medium is moved in one direction, micro element hologram arrays are sequentially recorded, and a large number of micro element hologram arrays are recorded.

(3) A holographic stereogram creating apparatus for forming a large number of small element holograms on a photosensitive recording medium, wherein a coherent light source is spatially modulated by an image having a parallax corresponding to an image forming position on the photosensitive recording medium. And means for projecting, and a first shutter array capable of independently controlling the transmittance of the projected image,
And a microlens array in which the pitch of the lens array corresponds to each microelement hologram; and opening one of the first shutter arrays to open the microelement hologram at a designated position on the photosensitive recording medium. Means for imaging the object light, a second shutter array capable of independently controlling the reference light, and one of the second shutter arrays as a shutter of the first shutter array. Open in synchronization with the opening operation, selectively irradiate the reference light to the position of the image condensed by the micro lens array to generate interference fringes in a micro area on the photosensitive recording medium, Means for recording a hologram.

(4) A holographic stereogram creating apparatus for forming a large number of small element holograms on a photosensitive recording medium, wherein a coherent light source is spatially modulated by an image having parallax corresponding to an image forming position on the photosensitive recording medium. And means for projecting, and a first shutter array capable of independently controlling the transmittance of the projected image,
And a microlens array in which the pitch of the lens array corresponds to each microelement hologram; and opening one of the first shutter arrays to open the microelement hologram at a designated position on the photosensitive recording medium. Means for imaging the object light, a second shutter array capable of independently controlling the reference light, and one of the second shutter arrays as a shutter of the first shutter array. Open in synchronization with the opening operation, selectively irradiate the reference light to the position of the image condensed by the micro lens array to generate interference fringes in a micro area on the photosensitive recording medium, Means for recording a hologram; means for sequentially repeating the above operation to record microelement holograms of a holographic stereogram in a line; Is recorded in one row, the photosensitive recording medium is moved in one direction to record the next row of microelement holograms, and this operation is sequentially repeated to record a large number of dot-shaped microelement holograms and form a holographic stereogram. Recording means.

(5) A holographic stereogram creating apparatus for forming a large number of micro-element holograms on a photosensitive recording medium, comprising: a light source; splitting means for splitting light emitted from the light source into two optical paths; A spatial light modulator for displaying a planar image having: a projection unit for irradiating one of the divided lights to the spatial light modulator, spatially modulating the light, and projecting the spatial light onto a diffusion plate; A microlens array having a first shutter which is arranged in a line at intervals corresponding to the hologram period and whose transmittance can be controlled independently for each microlens, and the other light split by the splitting means A second shutter array for controlling the irradiation of light, and a first shutter of one of the microlens arrays is opened, and the projection means is moved to a designated position on the photosensitive recording medium. Means for imaging the projected image, and one of the second shutter arrays is opened in synchronization with the opening operation of the shutter of the microlens array, and the other of the two divided by the dividing means is opened. Recording means for irradiating light onto the portion of the photosensitive recording medium on which the projected image has been formed to record microelement holograms; and repeating the above operation in order to place the microelement hologram on the photosensitive recording medium. First recording control means for recording in a row, and after recording the microelement hologram in one row by the first recording control means,
A second recording control means for moving in the direction to record the next minute element hologram in a row and sequentially repeating the recording.

(6) In the holographic stereogram creating apparatus according to any one of (3) to (5), the spatial light modulator is a liquid crystal panel capable of displaying a planar image having parallax.

(7) In the holographic stereogram creating apparatus according to any one of (3) to (6), the shutter of the microlens array and the shutter of the shutter array can be independently opened and closed by a liquid crystal. It is a shutter.

Hereinafter, the present invention will be described in detail along with embodiments (examples) with reference to the drawings.

In all the drawings for explaining the embodiments, parts having the same functions are denoted by the same reference numerals, and their repeated description will be omitted.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The principle of the holographic stereogram producing method of the present invention is as shown in FIG. 1 in that a plane image having a parallax corresponding to the position of a small element hologram of a holographic stereogram is spatially modulated. Element 15
, The coherent parallel light 103 is spatially modulated and projected on the diffusion plate 25, and the scattered light from the diffusion plate 25 is selectively opened by opening one shutter of the microlens array 16 having the shutter array 17. An image is formed on the photosensitive recording medium 18 as object light, and the coherent reference parallel light 104 is irradiated to the same position as the object light by opening one of the shutter arrays 23 synchronized with the shutter array 17. The interference fringes are formed by causing interference with the object light, and the holographic stereogram minute element hologram 26 is recorded on the photosensitive recording medium 18.

Images having different parallaxes are sequentially converted to spatial light modulator 1
5, the images having parallax are sequentially recorded without moving the photosensitive recording medium 18 by sequentially selecting the corresponding sets of the shutter arrays 17 and 23.

After one row of microelement holograms are recorded in this way, the photosensitive recording medium 18 is moved in one direction to sequentially record microelement hologram rows, and a large number of microelement hologram rows are recorded. Create holographic stereograms of images at high speed.

As described above, according to the principle of the present invention, the micro element hologram 26 of the holographic stereogram can be recorded in the micro area on the photosensitive recording medium 18.

By displaying the original images having different parallaxes and sequentially opening the shutter arrays 17 and sequentially opening the corresponding reference light shutter arrays 23, the micro element holograms 26 of the holographic stereogram are sequentially sequentially formed in the micro areas. Can be recorded. In this manner, the microelement hologram array can be recorded at high speed without mechanically moving the photosensitive recording medium 18.

After writing a row of microelement holograms, the photosensitive recording medium 18 is moved to form the next row of microelement holograms. By repeating this, a holographic stereogram can be formed on the entire surface of the photosensitive recording medium 18.

The holographic stereogram formed on the photosensitive recording medium 18 as described above can be subjected to appropriate development processing and then illuminated with coherent light or white light to obtain a three-dimensional image.

(Embodiment 1) FIG. 2 is a schematic diagram showing a schematic configuration of a holographic stereogram creating apparatus according to Embodiment 1 of the present invention.

As shown in FIG. 2, the holographic stereogram creating apparatus according to the first embodiment includes a laser 201, a beam splitter 202, and spatial filters 203 and 20.
4. Convex lens 205, spatial light modulator 206, diffuser 2
07, a microlens array 208, a photosensitive recording medium 210,
波長 wavelength plate 211, mirrors 212 and 213, cylindrical lenses 214 and 215, shutter array 21
6 and a computer (CPU) 220.

Reference numeral 101 denotes a coherent reference beam, 1
02 is a coherent object light, 103 is a coherent expanded parallel object light, and 104 is a coherent expanded parallel reference light.

In the first embodiment, the spatial light modulator 20
6, TN (Twisted Nemati) with a polarizing film
A liquid crystal panel for a c) type display is used, and the incident light is spatially modulated by controlling the light transmittance by electrically addressing each pixel using a computer 220.

As the photosensitive recording medium 210, a high-resolution silver salt dry plate used for ordinary hologram formation is used.

FIG. 3 is a sectional view showing the configuration of the microlens array 208 of the holographic stereogram creating apparatus of the first embodiment.

As shown in FIG. 3, the microlens array 208 includes a microlens portion 301 in which a plurality of plano-convex microlenses are arranged in a row, and transparent electrode sets 302 and 303 corresponding to each lens. Are provided inside glass substrates 304 and 305, an alignment film orthogonal to the surfaces of the sets of transparent electrodes 302 and 303 is formed, and a TN type liquid crystal shutter filled with a nematic liquid crystal 306 is provided.
A liquid crystal shutter portion in which a set of polarizing films 307 and 308 is attached outside of the liquid crystal panel 4305 so as to make the polarization parallel.

The light emitted from the laser 201 is split by a beam splitter 202 into reference light 101 and object light 102, and the object light 102 is converted into enlarged parallel light 103 using spatial filters 203 and 204 and a convex lens 205. Is irradiated on the spatial light modulation element 206 displaying.

The light that has been applied to the spatial light modulator and spatially modulated is projected onto the diffusion plate 207 so that the light is uniformly incident on each microelement hologram.

The projected light is transmitted to one of the shutters 217 of the micro lens array 208 having a liquid crystal shutter.
To open the micro area 2 on the photosensitive recording medium 210.
09.

On the other hand, the reference beam 101 is
At 1, the polarization direction is made coincident with the object light passing through the spatial light modulator 206, the optical path is changed by mirrors 212 and 213, and the one-dimensional enlarged parallel light 104 is formed by the cylindrical lenses 214 and 215. A shutter array 216 having the same configuration as the array opens a shutter 218 at a position corresponding to the open shutter of the microlens array, and irradiates the microscopic area 209 on the photosensitive recording medium 210 with the object light being superimposed thereon. I do.

Since the two lights irradiated on the minute region 209 interfere with each other and produce interference fringes, a minute element hologram can be recorded.

The image displayed on the spatial light modulator 206 may be a two-dimensional image having a different parallax from a three-dimensional model of a three-dimensional image as in a multiplex hologram. Unlike the case where only the image data is stored, the parallax in the vertical direction is also stored.
It is also necessary to move the viewpoint in the vertical direction according to the imaging position on 0.

FIG. 4 is a flowchart showing a procedure for creating a holographic stereogram.

Hereinafter, a method for creating a holographic stereogram using the holographic stereogram creating apparatus of the first embodiment will be described with reference to FIG.

First (step 401), the spatial coordinates of the object to be stereoscopically displayed are calculated (step 40).
2).

Next, a two-dimensional projected image on the three-dimensional spatial light modulator 206 is calculated with the point at which the minute element hologram on the photosensitive recording medium 210 is formed as a light passing point (step 403).

Next, based on the result of step 403, 2
The two-dimensional image is displayed on the spatial light modulator 206 (step 4).
04).

Next, a set of shutters 217 and 218 corresponding to the parallax position of the displayed two-dimensional image is opened (step 405). In step 405, the object light passing through the shutter 217 and the reference light passing through the shutter 218 interfere with each other in the minute area 209 on the photosensitive recording medium 210, and a minute element hologram is recorded.

When the recording is completed, the shutter set 21
7 and 218 are closed, and it is determined whether recording for one row of the microlens array has been completed (step 406). If the recording of one column has not been completed, the process returns to step 403 to calculate a two-dimensional projected image at a position corresponding to the minute region in which the next minute element hologram is to be recorded, and display the calculated image on the spatial light modulation element 206. A set of the micro lens array 208 and the shutter of the shutter array 216 is opened to record a micro element hologram.

By repeating this procedure, microelement holograms can be recorded at high speed for one row without moving the photosensitive recording medium 210.

If the recording for one row has been completed, it is determined whether the recording has been performed on the entire surface of the photosensitive recording medium 210 (step 4).
07). If it is not recorded on the entire surface, the photosensitive recording medium is moved in one direction (upward in FIG. 1) by the size of the moving direction of the micro element hologram (step 409), the process returns to step 403, and the micro element hologram is again formed. Make a record.

By repeating this, a micro-element hologram can be recorded on the entire surface of the photosensitive recording medium 210, and a holographic stereogram having parallax in up, down, left, and right can be created.

If the data has been recorded on the entire surface, the recording operation ends (step 408).

The holographic stereogram is completed by taking out the photosensitive recording medium whose recording has been completed on the entire surface from the preparation apparatus and performing development processing. By irradiating the completed holographic stereogram with coherent light or white light from the same direction as the reference light, a three-dimensional stereoscopic image reflecting the original image can be reproduced.

In the first embodiment, the plate-shaped photosensitive recording medium 210 is used. However, the film-shaped photosensitive recording medium may be wound around a drum so that a holographic stereogram can be continuously produced. By performing the developing process from the portion where the recording is completed, the holographic stereogram can be continuously generated fully automatically and the speed can be further increased.

(Embodiment 2) Next, an embodiment of a three-dimensional display using a real image such as a photographic film will be described.

FIG. 5 is a schematic view of a holographic stereogram creating apparatus according to a second embodiment of the present invention.

As shown in FIG. 5, the production apparatus of the second embodiment has the same configuration as the production apparatus of the first embodiment, and instead of the liquid crystal panel of the first embodiment, a spatial light modulator 206 is used. A photographic film 506 on which an image with parallax is recorded uses a convex lens 507 instead of the diffusion plate 207.

FIG. 6 shows a photographic film 506 of the second embodiment.
FIG. 5 is a schematic diagram for explaining a method of creating a sword.

First, a vertically movable table 602 is mounted on a horizontally movable table 603, and a camera 604 for a three-dimensional object 601 to be displayed is mounted thereon.

After the vertically movable base 602 is moved and the camera 604 is moved to sequentially capture images having parallax in the vertical direction, the horizontally movable base 603 is moved to move the camera to the right or left. Then, an image having parallax in the left-right direction is taken. This is repeated to photograph a set of original images having parallaxes in up, down, left, and right.

The amount of movement of the camera at this time is determined by the method of creating a normal holographic stereogram having only left and right parallaxes (see, for example, Junpei Tsujiuchi, “Holographic Display” (1990) Sangyo Tosho, p.191). Similarly, assuming that the reduction ratio of a photographed photograph is γ and the distance between the lenses of the microlens array is L, the vertical movement amount Ly of the camera is L / γ. Further, assuming that the moving amount of the photosensitive recording medium is δx in the left-right direction, the camera moving amount Lx in the left-right direction is δx / γ.

The photographic film 506 obtained by the above method
In the same manner as in the first embodiment, the expanded parallel object light 103 is irradiated, and the light spatially modulated by the photographic film
If the light is condensed at 07 and focused on a photosensitive recording medium with the same minute shutter array as in the first embodiment, then recording may be performed in the same procedure as in the first embodiment.

As described above, the present invention has been specifically described based on the above-described embodiment. However, the present invention is not limited to the above-described embodiment, and may be variously modified without departing from the gist thereof. Of course.

[0064]

The effects obtained by typical aspects of the invention disclosed in the present application will be briefly described as follows.

That is, a holographic stereogram element hologram can be recorded in a minute area on the photosensitive recording medium.

Further, it is possible to record a minute element hologram array at high speed without mechanically moving the photosensitive recording medium.

Further, since it is only necessary to move the photosensitive recording medium in one direction, the apparatus becomes simple and a holographic stereogram can be created at high speed.

[Brief description of the drawings]

FIG. 1 is a diagram for explaining the principle of a holographic stereogram creating method according to the present invention.

FIG. 2 is a perspective view illustrating a schematic configuration of a holographic stereogram creating apparatus according to a first embodiment of the present invention.

FIG. 3 is a cross-sectional view illustrating a configuration of a microlens array of the holographic stereogram creating apparatus according to the first embodiment.

FIG. 4 is a flowchart for explaining a processing procedure of the holographic stereogram creating apparatus according to the first embodiment;

FIG. 5 is a perspective view illustrating a schematic configuration of a holographic stereogram creating apparatus according to a second embodiment of the present invention.

FIG. 6 is a schematic diagram for explaining a method for producing a photographic film of Example 2.

[Explanation of symbols]

15: spatial light modulator, 16: minute lens array, 1
7, 23: shutter array, 18: photosensitive recording medium, 2
5: Diffusing plate, 26: minute element hologram, 101: reference light, 102: object light, 103: expanded parallel light (object light),
104: expanded parallel light (reference light), 201: laser, 20
2 ... beam splitter, 203,204 ... spatial filter, 205 ... convex lens, 206 ... spatial light modulator, 2
07: diffusion plate, 208: minute lens array, 209: minute area, 210: photosensitive recording medium, 211: 1/2 wavelength plate, 212, 213: mirror, 214, 215: cylindrical lens, 216: shutter array, 217,
218: open shutter, 220: calculator, 301:
Micro lens part, 302, 303 ... transparent electrode, 304, 3
05: glass substrate, 306: nematic liquid crystal, 30
7,308: polarizing film, 506: photographic film, 5
07: convex lens, 601: three-dimensional object to be displayed, 6
02: a table that can move vertically, 603: a table that can move horizontally, 604: a camera.

Claims (7)

[Claims] 1. A plane image having parallax corresponding to the position of a micro-element hologram of a holographic stereogram is displayed on a spatial light modulator, and a coherent parallel light beam is spatially modulated by the displayed image and projected on a diffusion plate. Then, one of the microlens arrays having the first shutter array is opened to selectively form an image on the photosensitive recording medium by the scattered light from the diffusion plate, and one of the second shutter arrays is formed. Opening the shutter in synchronization with the opening operation of the shutter of the first shutter array, irradiating coherent reference parallel light to the same position as the scattered light (object light) formed as an image to cause interference, and The micro-element hologram of the holographic stereogram is recorded on the top, images with parallax are sequentially displayed on the spatial light modulator,
A method for creating a holographic stereogram, comprising sequentially selecting a corresponding set of the first and second shutter arrays and sequentially recording images having parallax without moving a photosensitive recording medium. 2. A plane image having parallax corresponding to the position of a micro-element hologram of a holographic stereogram is displayed on a spatial light modulator, and a coherent parallel light beam is spatially modulated by the displayed image and projected on a diffusion plate. Then, one of the microlens arrays having the first shutter array is opened to selectively form an image on the photosensitive recording medium by the scattered light from the diffusion plate, and one of the second shutter arrays is formed. Opening the shutter in synchronization with the opening operation of the shutter of the first shutter array, irradiating coherent reference parallel light to the same position as the scattered light (object light) formed as an image to cause interference, and The micro-element hologram of the holographic stereogram is recorded on the top, images with parallax are sequentially displayed on the spatial light modulator,
The corresponding first and second sets of shutter arrays are sequentially selected, images with parallax are sequentially recorded on a photosensitive recording medium, and a row of microelement holograms are recorded, and then the photosensitive recording medium is moved in one direction. A holographic stereogram creating method, wherein the holographic stereogram sequence is sequentially recorded, and a large number of microelement hologram sequences are recorded. 3. A holographic stereogram creating apparatus for forming a large number of small element holograms on a photosensitive recording medium, wherein the coherent light source is spatially modulated by an image having parallax corresponding to an image forming position on the photosensitive recording medium. Lens having a first shutter array capable of independently controlling the transmittance of a projected image, and a pitch of a lens array corresponding to each micro element hologram. An array; a means for opening one shutter of the first shutter array to form an object beam of a microelement hologram at a specified position on the photosensitive recording medium; and independently controlling the reference beam. A possible second shutter array, and a shutter of one of the second shutter arrays, the shutter of the first shutter array. Opening in synchronism with the opening operation of the microlens array, selectively irradiating the reference light to the position of the image condensed by the microlens array to generate interference fringes in a microregion on the photosensitive recording medium, Means for recording a microelement hologram. 4. A holographic stereogram creating apparatus for forming a large number of small element holograms on a photosensitive recording medium, wherein the coherent light source is spatially modulated by an image having parallax corresponding to an image forming position on the photosensitive recording medium. Lens array having a first shutter array capable of independently controlling the transmittance of a projected image, and a pitch of the lens array corresponding to each micro element hologram. Means for opening one shutter of the first shutter array to image the object light of the microelement hologram at a designated position on the photosensitive recording medium; and independently controlling the reference light. A second shutter array, a shutter of the second shutter array, and a shutter of the first shutter array. In synchronization with the opening operation of the microlens array, selectively irradiating the reference light to the position of the image formed by condensing by the microlens array to generate interference fringes in a microregion on the photosensitive recording medium, Means for recording elementary holograms; means for sequentially repeating the above operation to record microelementary holograms in a holographic stereogram in a line; and after recording the microelemental holograms in a line, the photosensitive recording medium is moved in one direction. Recording a holographic stereogram by recording a row of microelement holograms and repeating this operation sequentially to record a large number of dot-shaped microelement holograms and recording a holographic stereogram. apparatus. 5. A holographic stereogram creating apparatus for forming a large number of micro-element holograms on a photosensitive recording medium, comprising: a light source; splitting means for splitting light emitted from the light source into two optical paths; A spatial light modulating element for displaying a plane image having the light; a projecting means for irradiating one of the divided light beams to the spatial light modulating element, spatially modulating the light, and projecting the spatial light onto a diffuser; A microlens array having a first shutter which is arranged in a line at intervals corresponding to the period and whose transmittance can be controlled independently for each microlens; A second shutter array for controlling irradiation; and a first shutter of one of the microlens arrays, which is opened, and is projected by the projection unit to a designated position on the photosensitive recording medium. Means for imaging the projected image, and one of the second shutter arrays is opened in synchronization with the opening operation of the shutter of the microlens array, and the other of the two divided by the dividing means is opened. Recording means for irradiating light onto the portion of the photosensitive recording medium on which the projected image is formed to record a microelement hologram; First recording control means for recording in a row, and after recording the fine element hologram in one row by the first recording control means, the photosensitive recording medium is moved in one direction and the next fine element hologram is recorded. Holographic stereogram producing apparatus, comprising: a second recording control means for recording the data in a row and sequentially repeating the recording. 6. The holographic stereogram creating apparatus according to claim 3, wherein the spatial light modulator is a liquid crystal panel capable of displaying a planar image having parallax. . 7. The shutter according to claim 3, wherein the shutter of the micro lens array and the shutter of the shutter array are liquid crystal shutters that can be electrically opened and closed independently. Holographic stereogram creation device.