JPH0643159B2 - XYZ plotter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION INDUSTRIAL FIELD OF USE The present invention is an X-ray system for obtaining a hard copy of a three-dimensional image.
The present invention relates to a YZ plotter. The XYZ plotter is, for example, a computer output device, a CAD output device used in the field of mechanical design, making a hard copy of a three-dimensional image for medical use, and a three-dimensional image in the field of design. It is widely used for making hard copies, making hard copies of three-dimensional images in the study of molecular structures, and various other purposes.

(Prior Art) Output devices for obtaining hard copies, such as XY plotters and electrostatic printers, which have been conventionally used as output devices for image information in computers are all two-dimensional image output devices. In the case of displaying a three-dimensional graph in the case of handling a multivariable function, or displaying a three-dimensional image in the case of designing a three-dimensional shape by a computer, there is a conventional method, for example, JP-A-56-69612. JP, JP-A-56-71387, JP-A-56
As disclosed in Japanese Patent Publication No.-72595 and others, a three-dimensional image is output as a soft copy by outputting three-dimensional image information from a computer. However, it is not possible to obtain a three-dimensional image as a hard copy. Since no capable output device has been submitted, the advent of a device capable of obtaining a hard copy of a true three-dimensional image was long awaited.

As a device capable of solving the above-mentioned problems in the applicant company, a cylindrical / convex lens array, and a photosensitive recording member installed on a substantially focal plane of the cylindrical / convex lens array described above are mentioned above. A fan shape that diverges only in a direction defined as a direction orthogonal to the extending direction of the cylindrical axis in the cylindrical convex lens array described above with respect to an assumed plane parallel to the focal plane of the cylindrical convex lens array. In the information of the position of each point of the three-dimensional image to be recorded in the three-dimensional space in front of the cylindrical convex lens array, the light source for emitting the luminous flux of The position information about the other two coordinate axes is correctly shown except the position information about the coordinate axis in the extending direction of the cylindrical axis. In a three-dimensional space on the front surface of the cylindrical-convex lens array described above in a three-dimensional space, and in the cylindrical-convex lens array described above with respect to a plane parallel to the focal plane of the cylindrical-convex lens array described above. By the linear visual field set in the direction orthogonal to the extending direction of the cylindrical axis and each point of the three-dimensional image to be recorded in the three-dimensional space in front of the cylindrical convex lens array described above. The planes formed respectively correspond to the straight lines formed by intersecting the surface of the cylindrical convex lens array described above, and are formed on the photosensitive recording member installed on the substantially focal plane of the cylindrical convex lens array described above. An XYZ plotter having means for recording on a straight line portion, and XYZ of Do configuration
In the plotter, with respect to the photosensitive recording member to be installed on substantially the focal plane of the cylindrical convex lens array plate, the planar shape dimensions of the individual cylindrical lenses of the cylindrical convex lens array plate described above and When individual areas are set to have a one-to-one correspondence with the individual ones of the above-mentioned cylindrical / convex lenses in the same plane shape dimension, the individual areas set in the photosensitive recording member as described above are The cylindrical / convex lens described above is arranged so that the light passing through the cylindrical / convex lens other than the cylindrical / convex lens corresponding to each area is not incident.
From the divergent light source for recording formed at the condensing point by the optical system at the position corresponding to the shape of the three-dimensional image to be recorded in the three-dimensional space on the front surface of the array plate, the cylindrical convex lens array To provide an XYZ plotter which is provided with means for limiting the divergence range of a light beam diverging in a fan shape in the direction orthogonal to the extending direction of the cylindrical axis of the plate, and to satisfactorily solve the above-mentioned conventional problems. I was able to.

FIG. 3 is a perspective view showing a schematic configuration of an XYZ plotter already proposed by the applicant company, and FIGS. 4 to 10 are views for explaining the configuration principle and operation principle of the already proposed XYZ plotter. In FIG. 3, MB is a machine base, and a cylindrical / convex lens array plate (lenticular plate) corresponding to a two-dimensionally deformed fly-eye lens plate is mounted on the machine base MB. A lens plate) CLA having a configuration commonly referred to as above and a photosensitive recording member PSM arranged so as to be located at the focal plane of the cylindrical / convex lens / array plate CLA are installed.

The cylindrical / convex lens / array plate CLA is
This is a configuration mode in which a large number of cylindrical / convex lenses are arranged on a plane so that their cylindrical axes are parallel to each other, and the lens pitch thereof is usually 0.1 mm to 0.5 mm. It is made to a certain degree and is made to have a thickness such that the focal plane matches the back surface.

That is, since the fly's-eye lens plate has a large number of individual eyes arranged in both the vertical direction and the horizontal direction, when the left and right eyes move in the horizontal direction or the vertical direction, However, as described above, the cylindrical / convex lens / array plate CLA has a configuration in which a large number of cylindrical / convex lenses are arranged on a plane so that their cylindrical axes are parallel to each other. However, since there is no lens function in the direction of the cylinder axis, parallax information in the cylinder axis direction cannot be recorded depending on the cylindrical / convex lens / array plate CLA, but both eyes of the human are arranged side by side. The minimum required stereoscopic effect due to the convergence and binocular parallax is that the stereoscopic effect only in the left-right direction is sufficient, and compared to the fly's eye lens plate, From various points such as the fact that the lens / array plate CLA is easier to manufacture, the fact that three-dimensional information is recorded using the cylindrical / convex lens / array plate CLA simplifies the configuration of the XYZ plotter. You can contribute.

Further, as the above-mentioned photosensitive recording member PSM, for example, a photographic plate or a photographic film provided with a silver salt photosensitive material film is used, or a phase from an amorphous state to a crystalline state by irradiation of light is used. A photosensitive recording member that undergoes a change or a phase change from a crystalline state to an amorphous state,
In addition, a magneto-optical recording member or the like can be used, but in the following description, it is said that a photographic plate or a photographic film provided with a silver salt photosensitive material film is used as the photosensitive recording member PSM. .

The cylindrical / convex lens array plate CLA described above in FIG. 3 has a cylindrical / convex lens array so that the surface of the photosensitive recording member PSM installed on the focal plane thereof coincides with the XY plane in the XYZ orthogonal coordinate system. Is provided so that the direction of the cylindrical axis of is parallel to the Y axis in the XYZ orthogonal coordinate system.

The support columns 1 and 2 are planted on the machine base MB, and the guide rods 3 are provided above the support columns 1 and 2 in parallel with the X axis in the XYZ orthogonal coordinate system and in the XYZ orthogonal coordinate system. Z
The guide rod 3 is provided at a position separated from the cylindrical / convex lens / array plate CLA in the axial direction by a clear distance D, but the position of the guide rod 3 is linear so that both eyes should be positioned when reproducing a three-dimensional image. It corresponds to a wide viewing area.

In the three-dimensional space in front of the above-mentioned cylindrical / convex lens / array plate CLA, the position of one selected point of the three-dimensional image to be recorded is set as the center SP of divergence, and the above-mentioned cylindrical / convex lens is used.・ Array board CL
When a plane parallel to the focal plane of A is assumed, the extending direction of the cylindrical axis in the cylindrical / convex lens array plate described above with respect to the assumed plane (Y in the example shown in FIG. 3).
A light source SL that emits a fan-shaped light beam PL that diverges only in a direction (X-axis in the example shown in the third illustration) defined as a direction orthogonal to the (axis) is provided. The entire XYZ plotter shown in FIG. 3 is used while being housed in a dark box.

In the XYZ plotter shown in FIG. 3, the laser light emitted from the laser light source 4 is focused and diverged only in the X-axis direction by the cylindrical lens 5 to cause the light source SL to generate the fan-shaped light beam PL. Center of divergence S
It is assumed that it exists in the space where P is located.

The above-mentioned light source SL, which is to be configured so as to be capable of being displaced and driven to any position within a predetermined range in the three-dimensional space in front of the cylindrical / convex lens / array plate CLA, is shown in FIG. In the configuration example of the XYZ plotter, the displacement is driven by the drive device DRA provided in the machine base MB.

That is, the light source SL in the XYZ plotter shown in FIG.
The drive device DRA of FIG. 2 is moved in the X-axis direction along a rail member Rx provided so as to extend in the X-axis direction in the XYZ orthogonal coordinate system by the drive rotation of the stepping motor Mx. And a rail member Rz fixed to the above-mentioned X-direction transfer body Fx and provided so as to extend in the Z-axis direction in the XYZ orthogonal coordinate system.
Along the direction Z by the drive rotation of the stepping motor Mz.
A transfer member Fz in the Z-axis direction that is transferred in the axial direction, and a rail member Ry fixed to the above-mentioned transfer member Fz in the Z-axis direction and provided so as to extend in the Y-axis direction in the XYZ orthogonal coordinate system. And a transfer body Fy in the Y-axis direction, which is transferred in the Y-axis direction by a drive circuit of the stepping motor My.

Then, in the configuration example shown in FIG. 3, the fan shape is formed by focusing the laser light emitted from the laser light source 4 only in the X-axis direction by the cylindrical lens 5 and then diverging it in the X-axis direction only. The position of the divergence center SP of the light flux PL, that is, the light source SL of the light flux PL that diverges in a fan shape only in the X-axis direction, is the center line of the pin 6 implanted in the Y-axis direction transfer body Fy. In the state of being positioned on the extension of, the displacement can be driven to any position within a predetermined range in the three-dimensional space in front of the cylindrical / convex lens / array plate CLA.

That is, the support member 7 of the laser light source 4 is rotatably connected to the pin 6 implanted in the transfer body Fy in the Y-axis direction, and the support member 7 is bored in the support member 7. The guide bar 3 is loosely fitted in the long hole 8 formed in
The drive device DRA of the light source SL in the plotter causes the stepping motors Mx, My, Mz in the respective transfer bodies Fx, Fy, Fz in the X, Y, and Z axis directions to respond to the drive signals supplied from the computer. By being rotationally driven, the above-mentioned light source SL located on the extension of the center line of the rotary shaft 6 planted in the transfer body Fy in the Y-axis direction is provided at the front of the cylindrical / convex lens array plate CLA. The displacement can be driven to any position within a predetermined range in the dimensional space, and the lighting state of the light source SL is controlled by a computer so that the cylindrical / convex lens / array plate CL is controlled.
Within a predetermined range in the three-dimensional space in front of A, the shape of the three-dimensional image to be recorded is displayed as a continuous linear light trajectory, or the recording target is recorded. The shape of the three-dimensional image to be displayed is displayed by the array of light spots.

By the way, as described above, the cylindrical / convex lens / array plate CLA does not have a lens function in the cylindrical axis direction of the cylindrical / convex lens (the direction of the Y axis in each figure). Board CLA
Even if is used, the parallax information in the cylindrical axis direction of the cylindrical convex lens (the direction of the Y axis in each figure) cannot be recorded in the photosensitive recording member PSM, but in the proposed XYZ plotter, the cylindrical convex lens is used. A three-dimensional image drawn by the displacement of the light source SL in the three-dimensional space in front of the array plate CLA is a three-dimensional image for the photosensitive recording member PSM arranged on the focal plane of the cylindrical / convex lens / array plate CLA. A cylindrical / convex lens / array plate CL arranged so as to have a focal plane in the XY plane in order to enable recording.
A light flux having a cross-sectional shape that does not spread in the cylindrical axis direction (Y-axis direction in each figure) of the cylindrical / convex lens that does not show a lens function in A and spreads in a fan shape only in the X-axis direction. Using the light source SL that emits light,
Cylindrical, convex lens, array plate CLA front 3
In the three-dimensional space, the light source SL is displaced according to the three-dimensional image to be recorded.

Therefore, when the light source SL is turned on in the three-dimensional space in front of the cylindrical / convex lens / array plate CLA, the light emitted from the light source SL emits the cylindrical / convex lens / lens as illustrated in FIG. On the photosensitive recording member PSM provided on the focal plane of the array plate CLA, an image of the light source SL is formed and recorded for each cylindrical / convex lens and each cylindrical / convex lens of the array plate CLA.

FIG. 4 shows that, in the YZ plane in the three-dimensional space in front of the cylindrical / convex lens / array plate CLA, the light source SL that emits the light beam PL diverging in a fan shape only in the X-axis direction is squared by the driving device DRA. , B, c, d are driven and displaced, the image forming position of the image of the light source SL on the photosensitive recording member PSM arranged so as to be located on the focal plane of the cylindrical / convex lens / array plate CLA. FIG. 6 is a diagram showing how changes in the Y-axis direction (direction of cylindrical axis of cylindrical lens / convex lens ... lateral direction in FIG. 4).

In FIG. 4, ai in the photosensitive recording member PSM arranged so as to be located on the focal plane of the cylindrical / convex lens / array plate CLA is a in the three-dimensional space in front of the cylindrical / convex lens / array plate CLA. 4 shows an image forming portion of the image of the light source SL when the light source SL is at the position of, and is arranged so as to be positioned on the focal plane of the cylindrical / convex lens / array plate CLA in FIG. Bi in the photosensitive recording member PSM is a cylindrical lens, a convex lens, an array plate CLA.
Shows the image forming portion of the image of the light source SL when the light source SL is located at the position of b in the three-dimensional space on the front surface of
Further, the lighting position of the light source SL is the fourth position within the three-dimensional space in front of the cylindrical / convex lens / array plate CLA.
When moved to positions c and d in the figure, the image of the light source SL is ci, di in FIG. 4 in the photosensitive recording member PSM installed on the focal plane of the cylindrical / convex lens / array plate CLA. It is imaged at the position shown.

FIG. 4 shows the YZ plane and the paper plane so that they are aligned with each other, and the direction of the cylindrical axis of the cylindrical / convex lens / array plate CLA (the direction of the Y axis) is shown in the lateral direction of the figure. The cylindrical / convex lens / array plate C
In the YZ plane in the three-dimensional space in front of LA, the light source SL that emits the luminous flux PL diverging in a fan shape only in the X-axis direction is squared by the drive device DRA.
The image forming position of the image of the light source SL formed on the photosensitive recording member PSM arranged so as to be located on the focal plane of the cylindrical / convex lens / array plate CLA when driven and displaced so as to draw c and d. Is ai, bi, c in FIG.
Like i and di, they are arranged in the direction of the cylindrical axis of the cylindrical / convex lens.

Further, the many cylindrical / convex lenses forming the cylindrical / convex lens / array plate CLA are aligned in the direction of the X axis, that is, in the direction perpendicular to the paper surface in FIG. Therefore, the light source SL that emits the light beam PL diverging in a fan shape only in the X-axis direction is a cylindrical / convex lens / array plate CL.
When the drive device DRA is driven and displaced so as to draw squares a, b, c, and d in the YZ plane in the three-dimensional space in front of A, the points a, b, c, and d described above.
The image of the light source SL at the position is imaged on the photosensitive recording member PSM for each of the plurality of cylindrical convex lenses aligned in the X-axis direction, and the photosensitive recording member P is imaged.
Recorded in SM.

By the way, as described above, the luminous flux emitted from the light source SL is the luminous flux PL diverging in a fan shape only in the X-axis direction,
The thickness of the light flux in the direction of the cylindrical axis of the cylindrical / convex lens (the direction of the Y-axis) is the lens width of each cylindrical / convex lens in the cylindrical / convex lens / array plate CLA at least at the portion incident on the cylindrical / convex lens / array plate CLA. The light source is imaged on the photosensitive recording member PSM for each of the plurality of cylindrical / convex lenses aligned in the X-axis direction as described above. The SL image is a cylinder of the cylindrical convex lens array plate CLA described above with respect to a plane parallel to the focal plane of the cylindrical convex lens array plate CLA in the three-dimensional space in front of the cylindrical convex lens array plate CLA. A direction (X-axis) orthogonal to the extending direction of the axis (Y-axis direction) Direction) and a linear visual field (position of the guide bar 3) and each point of the three-dimensional image to be recorded in the three-dimensional space in front of the cylindrical / convex lens / array plate CLA. Photosensitive recording provided on substantially the focal plane of the cylindrical / convex lens / array plate corresponding to the straight line formed by intersecting the planes of the cylindrical / convex lens / array plate CLA. The recording is performed on the straight line portion formed on the member PSM, and the recording position in the Y axis direction of the straight line portion indicates the position information of the light source SL in the Y axis direction.

Therefore, in the proposed XYZ plotter configured as described above, the cylindrical / convex lens / array plate CLA is used.
However, in the three-dimensional space on the front surface of the cylindrical / convex lens / array plate CLA, as described above, the fan-shaped divergence occurs only in the X-axis direction, and the thickness in the Y-axis direction is sufficiently small. Cylindrical / Convex lens / Array plate C
Light source SL that emits light flux PL that can be incident on LA
Is driven and displaced in accordance with the shape of the three-dimensional image that is the object of recording, and
Photosensitive recording member PS installed on the focal plane of the array plate
A three-dimensional image to be recorded can be recorded in M.

In this way, the above-mentioned cylindrical / convex lens /
The photosensitive recording member PSM installed on the focal plane of the array plate CLA has a three-dimensional space in front of the cylindrical / convex lens / array plate CLA for each cylindrical / convex lens / cylindrical / convex lens of the array plate CLA. An image of the light source SL is formed and recorded at a position corresponding to each lighting position of each light source SL in the inside of the inside of the inside, so that the photosensitive recording member PSM has a front surface of the cylindrical / convex lens / array plate CLA. 3 of the light source SL for each position displaced three-dimensionally in the three-dimensional space of
The dimensional position information is recorded.

In the already proposed XYZ plotter shown in the configuration example of the above-mentioned third illustration, the pin 6 implanted in the transfer body Fy in the Y-axis direction.
The support member 7 of the laser light source 4 is rotatably connected to the light source S, and the guide rod 3 is loosely fitted in the long hole 8 formed in the support member 7, so that the light source S in the XYZ plotter is
Each of the stepping motors Mx, My, Mz of each of the transfer bodies Fx, Fy, Fz in the X, Y, Z axis directions of the driving device DRA of L is rotationally driven according to the drive signal supplied from the computer. The light source SL, which is located on the extension of the center line of the rotary shaft 6 implanted in the transfer body Fy in the Y-axis direction, is predetermined in the three-dimensional space in front of the cylindrical / convex lens / array plate CAL. When driving the displacement within a predetermined range, the position of the guide rod 3 corresponding to the linear visual field in which both eyes should be placed at the time of reproduction by the operation of the mechanism configured as described above, and the position at that time The surface including the light source SL is a cylindrical / convex lens /
The fan-shaped light flux PL diverging only in the X-axis direction emitted from the light source SL so that recording is performed on the portion of the photosensitive recording member PSM corresponding to the area of the line intersecting with the surface of the array plate CLA. This is a configuration example in which the inclination angle between the spread and the XY plane is mechanically changed.
The YZ plotter mechanically determines the angle of inclination between the XY plane and the spread of the fan-shaped light beam PL diverging only in the X-axis direction emitted from the light source SL as in the case of the above-described third illustrated configuration example. A mechanism for changing the light source SL is not used, but only in the X-axis direction from the light source SL located on the extension of the center line of the rotary shaft 6 implanted in the transfer body Fy in the Y-axis direction. A fan-shaped light beam PL diverging and parallel to the XZ plane
(The thickness of the luminous flux in the Y-axis direction is made small as in the case of the configuration example shown in FIG. 3). A plane including the position of the guide rod 3 that corresponds to the linear visual field in which both eyes should be placed during reproduction when displaced within a predetermined range in the dimensional space, and the light source SL at that time. Cylindrical / convex lens /
It will be described later as equation (1) for the position information in the Y-axis direction so that recording is performed in the portion of the photosensitive recording member PSM corresponding to the substantially linear area intersecting with the surface of the array plate CLA. The XYZ plotter can be configured as another configurator having another configuration mode for correcting the relationship as shown in FIG. 8 (the same applies to FIG. 10) and is indicated by an imaginary line. The laser light source 4, the cylindrical lens 5 and the like shown are representatively shown in the configuration example shown in FIG. 3, and the laser light source 4, the cylindrical lens 5 and the like shown by the solid line in FIG. This corresponds to the case of the above-mentioned another configuration mode.

That is, in FIG. 6 having the same contents as FIG. 4 used to show the recording operation of the XYZ plotter of the configuration example shown in FIG. 3, VP is placed at the position of the guide rod 3 in FIG. This viewpoint VP is a distance of height D from the surface of the cylindrical / convex lens / array plate CLA, and the point P in FIG. 6 is the position of the light source SL. Is a cylindrical / convex lens / array plate C
The height from the surface of LA is d, and the distance in the height direction from the viewpoint VP is at the position (D-d), and the above-mentioned point P is in the Y-axis direction between it and the viewpoint VP. Is l,
If the distance in the Y-axis direction between the position i at which the image of the light source existing at point P is to be formed and the viewpoint VP is L, then up to the position i at which the image of the light source at point P is recorded as image formation. The distance L from the viewpoint VP in the Y-axis direction is expressed by the following equation (1) D / L = (D−d) / l, L = (D · l) / (D−d) ) (1), from the light source SL located on the extension of the center line of the rotary shaft 6 planted in the transfer body Fy in the Y-axis direction in the XYZ plotter, in the X-axis direction. Fan-shaped light beam P diverging only in parallel to the X-Z plane
When L is radiated and the light source SL is displaced within a predetermined range in the three-dimensional space in front of the cylindrical / convex lens / array plate CLA, a linear vision that both eyes should be given during reproduction. Guide rod 3 corresponding to the area
And a surface including the light source SL at that time corresponds to a substantially linear area where the surface of the cylindrical / convex lens / array plate CLA intersects with the photosensitive recording member PSM. As described above, the information in the Y-axis direction is corrected by the relationship as shown in the equation (1) so that the recording is performed.

As is clear from FIGS. 8 to 10, the above-mentioned 2
In order to record and reproduce the same three-dimensional image in the XYZ plotter having two different configurations, the position information in the X axis direction and the position information in the Z axis direction are the same, and the position information in the Y axis direction is the same. Therefore, it is only necessary to perform the correction as shown in the equation (1).

By controlling the lighting state of the light source SL by the computer, the shape of the three-dimensional image to be recorded within a predetermined range in the three-dimensional space in front of the cylindrical / convex lens / array plate CLA. Is displayed as a continuous linear light path, or the shape of a three-dimensional image to be recorded is displayed as an array of light spots.

An image of a point light source in the three-dimensional space in front of the cylindrical convex lens array plate CLA recorded on the photosensitive recording member PSM installed on the focal plane of the cylindrical convex lens array plate CLA in the recording mode as described above. If the photosensitive recording member PSM is of a positive type, it is developed by developing it so that only the image portion of the point light source becomes transparent and the other portions become black. .

Fig. 5 shows the cylindrical / convex lens / array plate CLA.
Positioned information of the light source SL located in the three-dimensional space on the front surface of the recorded photosensitive recording member PS recorded as described above.
By irradiating Mp with diffused light,
It is a figure for explaining that the reproduced image of the original light source SL can be made to appear in the space in front of the convex lens array plate CLA. In FIG. 5, PSMp is only the image portion of the point light source. It is a recorded photosensitive recording member PSMp that has been developed in such a manner that it becomes transparent and other portions become black.

Both the above-mentioned recorded photosensitive recording member PSMp and the cylindrical / convex lens / array plate CLA having the same configuration as the cylindrical / convex lens / array plate CLA used at the time of recording have a relative positional relationship between them. When the recorded photosensitive recording member PSMp is irradiated with the diffused light from the light source DSP from the side opposite to the cylindrical / convex lens / array plate CLA in combination so as to have the same mode as the recording, the recorded photosensitive recording member PSMp is recorded. The light transmitted through
By condensing light only in the direction of the X-axis by the individual cylindrical / convex lenses in the cylindrical / convex lens / array plate CLA, as shown in FIG.
A linear real image that includes aip, bip, cip, and dip in the dimensional space and is parallel to the Y axis is formed.

Then, when the left eye El and the right eye Er of the observer are placed as the viewing area at the time of reproduction as shown in FIG. 7, the direction of the X axis is as shown in FIG. 11 (a). The point of light is perceived at the position of the real image focused by each cylindrical / convex lens on the cylindrical / convex lens / array plate CLA, and there is no lens action on the cylindrical / convex lens in the Y-axis direction. Of FIG.
As shown in (b), the recorded photosensitive recording member PSM
It is perceived that a point of light exists in the direction of the straight line connecting the recording position at p and the observer's eye.

Therefore, when the observer's eyes El and Er are in the linear visual field assumed at the time of recording, recording is performed as shown in (a) of FIG. 12 (same as FIG. 5). The observer perceives the three-dimensional image without distortion as it is. However, when the observer sees from a region other than the linear visual field assumed at the time of recording, the original image of the recorded square is aip ′, as shown in FIG. 12 (b). Observers perceive it as distorted as indicated by bip ', cip', dip '. This point is different from that when a three-dimensional image is recorded and reproduced using a cylindrical lens, a convex lens and an array plate CLA. The difference is that when a three-dimensional image is recorded and reproduced using a fly-eye lens.

Then, as the recorded photosensitive recording member PSMp,
If an image of the light source SL is recorded at each of a number of three-dimensionally displaced positions in the three-dimensional space, the image at each position of the light source SL recorded on the recorded photosensitive recording member PSMp is cylindrical.・ Convex lens ・ Individual cylindrical in array plate CLA ・ Condensed in the X direction only by the convex lens, and the Y-axis including the position of the original point light source in the three-dimensional space in front of cylindrical lens・ Since the linear real images parallel to the (extending direction of the cylindrical axis of the convex lens) are connected to each other, the real images aip, bip, and cip are defined with the position of the guide rod 3 in FIG. , Dip, the entire light line or light point appearing at the position of the real image in the three-dimensional space can be perceived as a three-dimensional image by light.

As is clear from the description with reference to FIGS. 4 to 7 and FIGS. 11 and 12, the proposed XYZ plotter draws a line by light by turning on the light source SL in the three-dimensional space. Alternatively, a cylindrical, convex lens, array plate C is used to form a three-dimensional image by light drawn as a dot drawing by light.
Since the recording is performed on the photosensitive recording member PSM provided on the focal plane of LA, a three-dimensional image of a color image can be made to appear by selectively using the light source and the photosensitive recording member described above.

Also, instead of a light transmissive type as the recorded photosensitive recording member, a light reflective type recorded photosensitive recording member (for example, photographic paper) is used, and diffused light is emitted from the cylindrical / convex lens / array plate side during reproduction. Even if proved, a three-dimensional image by light drawn as line drawing by light or point drawing by light can appear in the three-dimensional space in front of the cylindrical lens, the convex lens, and the array plate.

The photosensitive recording member PSM to be arranged so as to be located on the focal plane of the cylindrical convex lens array plate CLA, even if it is configured to be integrated with the cylindrical convex lens array plate CLA, or , The photosensitive recording member PS to be arranged so as to be located on the focal plane of the cylindrical / convex lens / array plate CLA
The M and the cylindrical / convex lens / array plate CLA may be configured separately.

When the photosensitive recording member PSM to be arranged so as to be located on the focal plane of the cylindrical convex lens array plate CLA is configured separately from the cylindrical convex lens array plate CLA, A mode in which the relative positional relationship between the recorded photosensitive recording member PSMp and the cylindrical / convex lens / array plate CLA having the same configuration as the cylindrical / convex lens / array plate CLA used at the time of recording is the same as that at the time of recording. Of course, they should be combined so that they can be used for regeneration.

In the previously proposed XYZ plotters described so far, the image of the light source SL in the three-dimensional space in front of the cylindrical / convex lens / array plate CLA is displayed for each individual cylindrical / convex lens in the cylindrical / convex lens / array plate CLA. Cylindrical / Convex lens / Array plate C
An image is formed on the photosensitive recording member PSM installed on the focal plane of the LA, so that the photosensitive recording member PSM installed on the focal plane of the cylindrical / convex lens / array plate CLA has a cylindrical / convex lens. Since the position information of the light source SL at each position in the three-dimensional space in front of the array plate CLA is recorded, each position in the three-dimensional space in front of the cylindrical / convex lens / array plate CLA is recorded as described above. When the recorded photosensitive recording member PSMp on which the position information of the light source SL is recorded is irradiated with diffused light, the cylindrical / convex lens / array plate CLA
The reproduced image of the light source SL is observed in the three-dimensional space in front of the observer M.
However, in the XYZ plotter described so far, the 3
When the three-dimensional image is reproduced, the original 3 recorded
The range in which a three-dimensional image can be viewed correctly (hereinafter referred to as the viewing zone) is narrow, and in addition to the original three-dimensional image that was the subject of recording, it originally exists at the time of recording from a location that deviates from the above-mentioned viewing zone. A fake three-dimensional image (ghost image,
It may be a problem that the spurious image is also recognized.

The above problems will be specifically described as follows.
With the XYZ plotter having the configuration described above, the image of one light source SL in the three-dimensional space in front of the cylindrical / convex lens / array plate CLA is placed at the position of the focal plane of the cylindrical / convex lens / array plate CLA. It is assumed that recording is performed on the recording member PSM, and the recorded photosensitive recording member PSMp obtained by subjecting the photosensitive recording member PSM to development processing is changed from the reflective side to the cylindrical / convex lens / array plate CL to the recorded photosensitive recording member PSMp. When the diffused light is radiated, the light transmitted through the recorded photosensitive recording member PSMp is condensed for each cylindrical / convex lens / cylindrical / convex lens in the array plate CLA, whereby the fifth
Cylindrical / convex lens /
Aip, bip, ci in the three-dimensional space in front of the array plate CLA
Guide rod 3 in Fig. 3 because real images are connected to p and dip respectively.
Of the real images aip, bip, ci as the viewing zone at the time of reproduction.
p and dip are seen (FIG. 7 shows the arrangement of the observer's left eye El and right eye Er and the cylindrical / convex lens / array plate CLA when perceiving a three-dimensional image from the front of the recorded photosensitive recording member PSMp. As described above, it is perceived that a point of light is present at the position of the real image, as described above. However, the three points on the front surface of the cylindrical / convex lens / array plate CLA are described. In the dimensional space, a spurious image or a ghost image is generated in addition to the positions of aip, bip, cip, dip described above.

That is, cylindrical / convex lens / array plate CLA
Of light from one light source SL in the three-dimensional space in front of is imaged by each individual cylindrical / convex lens in the cylindrical / convex lens / array plate CLA, and the position of the focal plane of the cylindrical / convex lens / array plate CLA is determined. Is recorded on the photosensitive recording member PSMp, which is installed on the recorded photosensitive recording member PSMp. On the other hand, when the diffused light is irradiated, the recorded photosensitive recording member PS as described above
Light that has passed through a large number of image portions recorded on the basis of one light source SL in Mp is cylindrical / convex lens / cylindrical / convex lens / lens by each individual cylindrical / convex lens in the array plate CLA.
Real images are formed at many positions in the space in front of the array plate CLA.

That is, the light from one light source SL, which is a recording target in the three-dimensional space in front of the cylindrical / convex lens / array plate CLA, is changed by each cylindrical / convex lens in the cylindrical / convex lens / array plate CLA. The diffused light irradiating the recorded photosensitive recording member PSMp follows the path of the light beam that was traced when the image was recorded on the photosensitive recording member PSM installed at the position of the focal plane of the array plate CLA. Reversely, in addition to the true reconstructed image generated in the three-dimensional space in front of the cylindrical / convex lens / array plate CLA, one for each cylindrical / convex lens in which the ray for producing the above-mentioned true reconstructed image has passed Only the real image generated by the light that has passed through each cylindrical / convex lens adjacent to the right and the true reproduced image described above are generated. That the real image produced by the light passing through the respective cylindrical-convex lens rays next left by one for each cylindrical-convex lens that has passed, many other real images cylindrical-convex lens array plate C
This is because spurious images or ghost images occur in the three-dimensional space in front of LA.

In the XYZ plotter shown in FIG. 3 described above, the range in which the original three-dimensional image targeted for recording can be viewed correctly (hereinafter referred to as the viewing zone) is narrow and deviates from the viewing zone described above. From the place, in addition to the original three-dimensional image that was the subject of the recording, a false 3 that did not originally exist at the time of recording
It was sometimes a problem that a three-dimensional image (ghost image, spurious image) was also recognized.

The above problem is due to the arbitrary 2 in the X, Y, Z Cartesian coordinate system.
Cylindrical whose focal plane is a plane containing two coordinate axes
The convex lens / array plate, the photosensitive recording member installed on the focal plane of the cylindrical / convex lens / array plate, and the front surface of the cylindrical / convex lens / array plate are used for recording in a three-dimensional space. Should be 3
With the position of one selected point of the next image as the center of divergence, and assuming a surface parallel to the focal plane of the cylindrical convex lens array plate described above, the cylindrical convex lens described above for the assumed surface. A light source that emits a fan-shaped light beam that diverges only in a direction defined as a direction orthogonal to the extending direction of the cylindrical axis of the array plate is a cylindrical, convex lens, and three-dimensional space in front of the array plate. Being recorded in 3
A means for three-dimensionally displacing in relation to each selected point in the three-dimensional image, and a focal plane of the cylindrical convex lens array plate in the three-dimensional space in front of the cylindrical convex lens array plate. When a parallel surface is assumed, a linear viewing area set in a direction defined as a direction orthogonal to the extending direction of the cylindrical axis of the cylindrical lens, the convex lens, and the array plate described above for the assumed surface and the Cylindrical, convex lens,
A straight line formed by intersecting the plane of the above-mentioned cylindrical / convex lens / array plate with a plane composed of a selected one point of the three-dimensional image to be recorded in the three-dimensional space on the front surface of the array plate. Corresponding to the above, there is provided means for performing recording on a straight line portion formed on the photosensitive recording member provided on the substantially focal plane of the cylindrical convex lens array plate described above. In the XYZ plotter having such a configuration, regarding the photosensitive recording member to be installed on the approximately focal plane of the cylindrical / convex lens / array plate, each of the cylindrical / convex lenses of the cylindrical / convex lens / array plate is One-to-one correspondence with each of the above-mentioned cylindrical / convex lenses with the same plane shape dimension as that of the object. When each area is set, the light that has passed through the cylindrical / convex lens other than the cylindrical / convex lens corresponding to that area is incident on each area set on the photosensitive recording member as described above. The above-mentioned cylindrical
The light is turned on at a position corresponding to the shape of the three-dimensional image to be recorded in the three-dimensional space on the front surface of the convex lens / array plate, and in the direction orthogonal to the extending direction of the cylindrical axis of the cylindrical / convex lens / array plate. This can be solved satisfactorily by providing means for limiting the divergence range of the luminous flux diverging in a fan shape.

As means for limiting the divergence range of the above-mentioned fan-shaped light beam, for example, a mask member having a hole of a predetermined shape in the passage of the above-mentioned light beam is provided, or a cylindrical lens. Means such as appropriately setting the diameter of 5 can be adopted.

(Problems to be Solved by the Invention) The already proposed XYZ described with reference to FIGS. 3 to 12
In the plotter, the cylindrical / convex lens / array plate CLA is turned on at a position corresponding to the shape of the three-dimensional image to be recorded in the three-dimensional space in front of the cylindrical / convex lens / array plate CLA. A three-dimensional image to be recorded, which is formed by the movement locus of a light source that generates a light beam diverging in a fan shape in a direction orthogonal to the extending direction, is set on the focal plane of the cylindrical / convex lens / array plate CLA. Recording on the photosensitive recording member PSM, and as described above, the cylindrical lens, the convex lens,
A recorded photosensitive recording member P on which position information of the light source is recorded for each position in the three-dimensional space on the front surface of the array plate CLA.
In the reproduced image reproduced in the three-dimensional space in front of the cylindrical / convex lens / array plate CLA by irradiating the SMp with diffused light as shown in FIG. 5, it corresponds to the light source to be recorded. Since there is no overlap between the range in which the reconstructed image that can be recognized by the observer and the range in which the false reconstructed image can be recognized by the observer do not overlap, Three
Although it is possible to see the three-dimensional image correctly, the range of the three-dimensional image to be recorded in the above-mentioned proposed XYZ plotter can exist only in the three-dimensional space in front of the cylindrical lens, the convex lens, and the array plate CLA. The cylindrical / convex lens / convex lens / convex lens / convex lens / lens
It was not possible to record a three-dimensional image on the array plate CLA and reproduce it.

(Means for Solving the Problems) The present invention relates to a cylindrical / convex lens / array plate, a photosensitive recording member provided substantially at the focal plane of the cylindrical / convex lens / array plate, and the cylindrical / convex lens / When a plane parallel to the focal plane of the array plate is assumed, it diverges only in the direction specified as the direction orthogonal to the extending direction of the cylindrical axis of the cylindrical lens, the convex lens, and the array plate described above with respect to the assumed surface. As a fan-shaped light beam that looks like a fan, a light beam that is diverged after being condensed by an optical system is used, and the condensing point is used as a divergent light source for recording, and the condensing point formed by the optical system described above is used for recording. Of the divergent light source of the position of each point of the three-dimensional image to be recorded in the three-dimensional space where the cylindrical lens, the convex lens and the array plate are installed. In the information, the three-dimensional displacement is performed in such a manner that the position information about the other two coordinate axes excluding the position information about the coordinate axis in the extending direction of the cylindrical axis of the cylindrical lens, the convex lens, and the array plate is correctly shown. And a plane parallel to the focal plane of the cylindrical convex lens array plate in the three-dimensional space in which the cylindrical convex lens array plate is installed, of the cylindrical axis of the cylindrical convex lens array plate. Formed by a linear viewing area set in a direction orthogonal to the extending direction and each point of a three-dimensional image to be recorded in a three-dimensional space in which the cylindrical lens, the convex lens, and the array plate are present. The flat surface corresponds to the substantially straight line formed by intersecting the surface of the cylindrical / convex lens / array plate described above. And a means for recording in a linear region formed on the photosensitive recording member installed substantially on the focal plane of the cylindrical convex lens array plate, and the cylindrical convex lens described above. The XYZ plotter in which the array plate is installed in a three-dimensional space within the moving range of the recording divergent light source formed at the converging point by the optical system, and the XYZ plotter having the above-mentioned configuration, Regarding the photosensitive recording member to be installed approximately on the focal plane of the cylindrical / convex lens / array plate, with the same planar shape and size as the planar shape and size of each of the above-mentioned cylindrical / convex lens / array plate, the numerous cylindrical / convex lenses. When individual areas are set so as to correspond one-to-one with the individual cylindrical / convex lenses described above. In addition, as described above, in each area set on the photosensitive recording member, the light passing through the cylindrical / convex lens other than the cylindrical / convex lens corresponding to the individual area is not incident. , To be recorded in the three-dimensional space in front of the cylindrical / convex lens / array plate 3
From the divergent light source for recording formed at the condensing point by the optical system at the position corresponding to the shape of the three-dimensional image, it is diverged in a fan shape in the direction orthogonal to the extending direction of the cylindrical axis of the cylindrical convex lens array plate. The present invention provides an XYZ plotter provided with means for limiting the divergence range of the luminous flux.

(Example) Hereinafter, specific contents of the XYZ plotter of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a perspective view showing a schematic configuration of an XYZ plotter of the present invention, and FIG. 2 is a positional information in the Y-axis direction in the XYZ plotter shown in FIG. 4 is a diagram used for explaining the correction of FIG.

In FIG. 1, MB is a machine base, on which the fly's eye lens plate is deformed into a two-dimensional shape, as in the case of the XYZ plotter already described with reference to FIG. And a cylindrical / convex lens / array plate (lens plate having a configuration commonly called a lenticular plate) CLA and a cylindrical / convex / lens array plate CLA. The photosensitive recording member PSM is installed, and the cylindrical / convex lens / array plate CL described above in FIG. 1 is installed.
A is a photosensitive recording member P installed on the focal plane thereof.
The surface of SM is provided so as to coincide with the XY plane in the XYZ orthogonal coordinate system, and the direction of the cylindrical axis of the cylindrical convex lens is parallel to the Y axis in the XYZ orthogonal coordinate system.

The cylindrical / convex lens / array plate CLA is
A large number of cylindrical convex lenses are arranged on a plane such that their cylindrical axes are parallel to each other, and the lens pitch thereof is usually 0.1 mm to 0 mm, for example. The thickness is about 5 mm, and the focal plane is made to match the back surface, and the fly's-eye lens plate has a large number of individual eyes in both the vertical and horizontal directions. Since it has a configuration of being arranged in a horizontal direction, it is possible to detect a stereoscopic image regardless of whether the left and right eyes move in the left-right direction or the up-down direction, as described above, the cylindrical / convex lens / array plate CLA.
Is configured such that a large number of cylindrical convex lenses are arranged on a plane so that their cylindrical axes are parallel to each other, and there is no lens function in the direction of the cylindrical axis. Therefore, although the cylindrical / convex lens / array plate CLA cannot record the parallax information in the cylindrical axis direction, the minimum stereoscopic effect due to convergence and binocular parallax due to the fact that the human eyes are arranged on the left and right A stereoscopic effect only in the left-right direction is sufficient, and
Since the cylindrical lens, the convex lens, and the array plate CLA are easier to manufacture than the fly's eye lens plate, the three-dimensional information can be recorded using the cylindrical lens, the convex lens, and the array plate CLA. As described above, it can contribute to the simplification of the configuration of the XYZ plotter.

Further, as the above-mentioned photosensitive recording member PSM, for example, a photographic plate or a photographic film provided with a silver salt photosensitive material film is used, or a phase from an amorphous state to a crystalline state by irradiation of light is used. A photosensitive recording member that undergoes a change or a phase change from a crystalline state to an amorphous state,
In addition, a magneto-optical recording member or the like can be used, but in the following description, it is said that a photographic dry plate or a photographic film provided with a silver salt photosensitive material film is used as the photosensitive recording member PSM. .

In the XYZ plotter shown in FIG. 1, Fyb is the above-mentioned 3 of the cylindrical / convex lens / array plate CLA.
A transfer body that is displacement-driven in the dimensional space by the operation of a drive device DRA described later.
Is provided with a light source SL and an optical system Lc.

The optical system Lc provided on the transfer body Fyb is
For example, like a convex lens or a concave mirror, a light beam having a fan-shaped cross-section emitted from the light source SL is focused to condense point P.
After forming SI, a configuration having a function of diverging a light beam from the condensing point PSI is used, and in the embodiment shown in the first illustration, the optical system Lc is Although the one composed of one convex lens is used, when the optical system Lc is composed of a convex lens, one composed of a combination of a plurality of lenses may be used. Of course.

In the first illustrated embodiment, the light source SL provided on the transfer body Fyb focuses the light emitted from the laser light source 4 by the cylindrical lens 5 (cylindrical lens 5) to generate the cylindrical lens. 5 is a light source configured to emit a divergent light beam having a fan-shaped cross-sectional shape, such as a divergent light beam only in the X-axis direction on the XY plane, from the converging point converged by the light source SL. The divergent light flux thus formed is converged by the convex lens forming the optical system Lc, and an image of the light source SL is formed at the condensing point PSI.

The light source PSI of the light beam PL diverging in a fan shape only in the X-axis direction is the position of the condensing point PSI where the fan-shaped light beam emitted from the light source SL is focused by the optical system Lc. Cylindrical / convex lens / array plate CLA according to the driving displacement of the transfer body Fyb in the axial direction.
Is designed so that it can be displaced and driven to any position within a predetermined range in a three-dimensional space in which
The condensing point PSI is a new light source PSI (new light source PSI), and the divergent light flux from the light source PSI irradiates the cylindrical / convex lens / array plate CLA. The whole is used while being stored in a dark box.

That is, the transfer body Fyb in the Y-axis direction is XYZ.
The drive device DRA of the light source SL in the plotter rotates the respective stepping motors Mx, My, Mz in each of the transfer bodies Fx, Fyb, Fz in the X, Y, and Z axis directions according to the drive signals supplied from the computer. By being driven, the transfer body Fyb in the Y-axis direction is driven and displaced, and is displaced and driven to any position within a predetermined range in the three-dimensional space in which the cylindrical / convex lens / array plate CLA exists. It is possible,
In addition, by controlling the light emitting state of the light source PSI by a computer, the cylindrical / convex lens /
Within a predetermined range in the three-dimensional space where the array plate CLA exists, the shape of the three-dimensional image to be recorded is displayed as a continuous linear light trajectory, or the recording is performed. The shape of the three-dimensional image to be the target of is displayed by the array of light spots.

By the way, as described above, the cylindrical / convex lens / array plate CLA does not have a lens function in the cylindrical axis direction of the cylindrical / convex lens (the direction of the Y-axis in each drawing). Plate CL
Even if A is used, the parallax information in the cylindrical axis direction of the cylindrical convex lens (the direction of the Y axis in each drawing) cannot be recorded in the photosensitive recording member PSM.
In the illustrated XYZ plotter, the light source PSI is present in the three-dimensional space where the cylindrical lens, the convex lens, and the array plate CLA exist.
3D image drawn by the displacement of the
In order to enable recording as a three-dimensional image on the photosensitive recording member PSM arranged on the focal plane of the convex lens array plate CLA, a cylindrical lens arranged to have a focal plane on the XY plane. convex lens·
The array plate CLA has a cross-sectional shape that does not expand in the cylindrical axis direction (Y-axis direction in each figure) of a cylindrical / convex lens that does not exhibit a lens function, but expands in a fan shape only in the X-axis direction. Light source P adapted to emit a light beam
Cylindrical / convex lens / array plate C using SI
In the three-dimensional space where the LA exists, the light source PSI is displaced according to the three-dimensional image to be recorded.

Therefore, when the light source PSI emits light in the three-dimensional space in which the cylindrical / convex lens / array plate CLA exists, the light emitted from the light source PSI causes the individual cylindrical / convex lenses of the cylindrical / convex lens / array plate CLA to be described above. Each image is focused and the image of the light source PSI is recorded on the photosensitive recording member PSM provided on the focal plane of the cylindrical / convex lens / array plate CLA.

The drive device DRA is a transfer body in the X-axis direction that is transferred in the X-axis direction along a rail member Rx provided so as to extend in the X-axis direction in the XYZ orthogonal coordinate system by the drive rotation of the stepping motor Mx. Fx and the above X
Along the rail member Rz, which is fixed to the directional transport body Fx and is provided so as to extend in the Z-axis direction in the XYZ orthogonal coordinate system, is transported in the Z-axis direction by the drive rotation of the stepping motor Mz. Fixed to the Z-axis direction transfer body Fz and the Z-axis direction transfer body Fz.
The above-mentioned transfer body Fyb in the Y-axis direction that is transferred in the Y-axis direction by the driving rotation of the stepping motor My along the rail member Ry provided so as to extend in the Y-axis direction in the orthogonal coordinate system. It is configured.

Therefore, the drive unit DRA of the light source in the XYZ plotter shown in FIG.
The respective stepping motors Mx, Myb, Mz in x, Fyb, Fz are rotationally driven according to the drive signals supplied from the computer, so that the lowermost end Fybe of the transfer body Fyb in the Y-axis direction is a cylindrical convex lens. A movable range in the vertical direction in which the position immediately before contacting the surface of the array plate CLA is the lowest end, and the position where the transfer body Fz in the Z-axis direction reaches the upper end of the rail member Rz is the upper end, and Each transfer body Fx, Fyb is a rail member R
It can be displaced and driven to any position in the three-dimensional space in front of the cylindrical / convex lens / array plate CLA within a range in which it can move back and forth and left and right along x and Ry.

In the apparatus of the first embodiment, the Y-direction transfer member Fyb is a cylindrical / convex lens / array plate CLA.
If the condensing point PSI, which is the above-mentioned new light source, is located above the cylindrical / convex lens / array plate CLA at a position separated upward in the space in front of the The light diverging from the PSI is focused for each individual cylindrical lens / convex lens in the cylindrical lens / convex lens / array plate CLA, and the photosensitive recording member PSM installed on the focal plane of the cylindrical lens / convex lens / array plate CLA has a cylindrical surface. An image of the condensing point (light source) PSI is formed and recorded for each individual cylindrical / convex lens on the convex lens / array plate CLA.

Further, in the apparatus of the first embodiment, the Y-direction transfer body Fyb is located at a lower position in the space in front of the cylindrical / convex lens / array plate CLA and serves as the new light source. When the point PSI is located below the position of the cylindrical / convex lens / array plate CLA, that is, the cylindrical / convex lens array is located below the position of the condensing point PSI formed by the focusing of the light flux by the optical system Lc. Plate CLA is optical system Lc
If it is installed close to the lens, it will focus on a virtual condensing point PSI 'generated at the position of the condensing point (PSI') generated in space when the cylindrical / convex lens / array plate CLA does not exist. A light beam in a moving state (a light beam having the same direction as the light beam diverging from the virtual condensing point PSI ') is a cylindrical / convex lens / array plate CLA.
Recording is performed for each individual cylindrical / convex lens in (3) on the photosensitive recording member PSM provided on the focal plane of the cylindrical / convex lens / array plate CLA.

The XYZ plotter of the first embodiment shown in FIG. 1 spreads the fan-shaped light beam PL diverging only in the X-axis direction emitted from the light source SL like the already proposed XYZ plotter described with reference to FIG. The XY shown in FIG. 3 is adopted without adopting a mechanism for mechanically changing the inclination angle between the XY plane and the XY plane.
An XYZ plotter having a configuration capable of recording / reproducing a three-dimensional image in a recording / reproducing mode similar to that of the Z plotter, that is, a configuration similar to the XYZ plotter having the configuration described above with reference to FIGS. 3 and 6. The light beam emitted from the light source PSI, that is, the light beam PL diverging only in the X-axis direction and having a fan-shaped cross section and parallel to the XZ plane is A light beam whose thickness in the Y-axis direction is made smaller than the lens width of one cylindrical / convex lens in the cylindrical / convex lens / array plate CLA is equal to or less than the lens width of the cylindrical / convex lens array plate CLA is diverged from the condensing point PSI of the optical system Lc. Then, the condensing point PSI is displaced within a predetermined range in the three-dimensional space in which the cylindrical / convex lens array CLA exists. In addition, the linear visual field (the position of the guide rod 3 in FIG. 3) to which both eyes should be placed during reproduction, and the surface containing the light source PSI at that time intersect the surface of the cylindrical / convex lens array CLA. The relationship was corrected according to the above-described equation (1) corresponding to the position information in the Y-axis direction so that recording is performed on the portion of the photosensitive recording member PSM corresponding to the line area. A three-dimensional image is recorded in this state.

That is, in FIG. 2 used to indicate the recording operation of the XYZ plotter of the embodiment shown in FIG. 1, VP is a viewpoint placed at the position of the guide rod 3 in FIG. 3, and this viewpoint V
It is assumed that P is a distance of height D from the surface of the cylindrical / convex lens array CLA, and point P in FIG. 2 is the position of the light source PSI ′. This point P is the cylindrical / convex lens array CLA. Distance from the plane of -d
And the distance in the height direction from the viewpoint VP is (Dd).
, And the above-mentioned point P is at that point and the viewpoint VP.
Is 1 in the Y-axis direction, and the distance i in the Y-axis direction between the viewpoint i and the position i where the image of the light source existing at the P point is to be formed is L. The distance L in the Y-axis direction from the viewpoint VP to the position i at which the image is recorded.
Is represented by the following equation (1) D / L = (D−d) / l, L = (D · l) / (D−d) (1) from the relationship of similarity of triangles.

Therefore, in the XYZ plotter shown in FIG. 1, the light source PS
From I (PSI '), a fan-shaped light beam diverging only in the X-axis direction and parallel to the XZ plane is radiated,
When the light source PSI (PSI ′) is displaced within a predetermined range in the three-dimensional space in which the cylindrical / convex lens array CLA is present, a linear visual field (3 The position of the guide rod 3 in the figure), and the surface including the light source PSI (PSI ') at that time corresponds to a substantially linear region where the surface of the cylindrical / convex lens array CLA intersects with a portion of the photosensitive recording member PSM. The information in the Y-axis direction is corrected by the relationship shown in the equation (1) so that the recording is performed, and the recording is performed. When it is performed on the position in the axial direction, the positional information and the Z in the X-axis direction are obtained between the XYZ plotter having the configuration shown in the first diagram and the XYZ plotter having the configuration shown in the third diagram.
The position information in the axial direction is the same as the position information in the Y-axis direction, and the position information in the Y-axis direction can be made the same by performing the correction as in the formula (1).

By controlling the light emission state of the light source PSI (PSI ′) by a computer, within a predetermined range in the three-dimensional space where the cylindrical / convex lens array CLA exists, the three-dimensional object to be recorded is to be recorded. The shape of the image is displayed as a continuous linear trajectory of light, or the shape of a three-dimensional image to be recorded is displayed as an array of light spots. The image of the light source in the three-dimensional space where the cylindrical convex lens array CLA recorded in the photosensitive recording member PSM installed on the focal plane of the cylindrical convex lens array CLA in the recording mode as described above is: If the photosensitive recording member PSM is a positive type, by developing it, only the image portion of the light source becomes transparent and the other portions become transparent. It is developed as those become manner.

That is, the light intensity and position information of the condensing point PSI (light source) recorded on the photosensitive recording member PSM installed on the focal plane of the cylindrical / convex lens / array plate CLA in the recording mode as described above, or virtual information. If the photosensitive recording member PSM is a positive type, the light intensity and position information of the condensing point PSI 'can be obtained by developing the condensing point PSI'.
Recording developed in such a manner that only the light intensity and position information of I (light source) or the light intensity and position information of the virtual condensing point PSI 'becomes transparent and the other parts become black. The processed photosensitive recording member PSMp, that is, the recorded photosensitive recording member PSMp developed so that only the image part of the light source becomes transparent and the other part becomes black.

As described above, the lower end portion Fybe of the transfer body Fyb in the Y direction is at the lower position in the space in front of the cylindrical / convex lens / array plate CLA, and the condensing point PSI, which is the new light source, is A position below the convex lens / array plate CLA, that is, a virtual condensing point PSI ′ generated in space when the cylindrical lens / convex lens / array plate CLA does not exist.
In the light flux in the state of being focused on the cylindrical lens, the convex lens, the individual cylindrical lenses forming the array plate CLA, the light flux of each convex lens is focused for each individual cylindrical lens and the convex lens,
A cylindrical / convex lens / array plate CL is attached to the photosensitive recording member PSM installed on the focal plane of the array plate CLA.
The state of being image-recorded for each individual cylindrical / convex lens forming A is the individual cylindrical / convex lens array plate CLA in the light beam in the state of being focused on the virtual condensing point PSI ′. The direction of the light flux imaged and recorded on the photosensitive recording member provided on the focal plane of the cylindrical / convex lens / array plate CLA in which the light flux of each convex lens is focused for each cylindrical / convex lens Of the light beam diverging from the condensing point PSI 'of Cylindrical / Convex lens / Array plate C
In the photosensitive recording member PSM, which is focused on each cylindrical / convex lens in the LA and is installed on the focal plane of the cylindrical / convex lens / array plate CLA, the above-mentioned cylindrical / convex lens / array plate CLA is formed. The direction of the light flux at the time of image formation and recording is the same for each cylindrical / convex lens.

It should be noted that since the light flux incident on each cylindrical / convex lens forming the cylindrical / convex lens / array plate CLA is not a perfect parallel light but a light flux focused on a virtual condensing point PSI ′, The position of the condensing point when the light flux incident on each individual lens is focused for each individual lens is the position of the photosensitive recording member installed on the focal plane of the cylindrical / convex lens / array plate CLA. An image of a slightly defocused large-diameter spot of light is recorded at the position of the photosensitive recording member that is displaced to the front side of the position and is installed on the focal plane of the cylindrical / convex lens / array plate CLA. However, as described above, this brings the following advantages during reproduction.

That is, cylindrical / convex lens / array plate CLA
Recorded photosensitive recording member PSM obtained by developing a photosensitive recording member in a state in which an image of a slightly blurred large-diameter light spot is recorded on the photosensitive recording member PSM installed on the focal plane of
When reproduction is performed by irradiating diffused light from the back side of p, both eyes are positioned in the space in front of the cylindrical / convex lens / array plate CLA to look at the cylindrical / convex lens / array plate CLA. Since the observer is provided with a light flux showing a little divergence that has passed through the recorded image on the recorded photosensitive recording member PSMp in the state in which the image of the light spot having a slightly blurred large diameter is recorded as described above. When the reconstructed image is perceived by tracing the reverse of the entire light flux showing a little spread given to it, the reconstructed image exists at a position deeper than the position of the cylindrical lens, the convex lens, and the array plate CLA. It can be perceived as being present, and as described above, when the image passed through the recorded image on the recorded photosensitive recording member PSMp in the state in which the image of the light spot with a slightly blurred large diameter is recorded. The observer the light beam showing the spread are given, it is not even that point of the reproduced image can not be seen by the deviation of the position of the eye during playback observer.

The above-mentioned recorded photosensitive recording member PSMp and the cylindrical convex lens array CL having the same configuration as the cylindrical convex lens array CLA used at the time of recording.
Both A and A are combined so that the relative positional relationship between them is the same as that at the time of recording.
When the recorded photosensitive recording member PSMp is irradiated with diffused light from the light source DSP from the side opposite to the convex lens array CLA,
The light that has passed through the recorded photosensitive recording member PSMp is condensed only in the direction of the X axis by the individual cylindrical / convex lenses in the cylindrical / convex lens array CLA, and as shown in FIG. Form a linear real image parallel to the Y axis, including aip, bip, cip, dip in the three-dimensional space in front of the convex lens array CLA.

Then, when the left eye El and the right eye Er of the observer are placed as the viewing area during reproduction as shown in FIG. 7, the direction of the X axis is shown in FIG. 11 (a). As described above, the point of light is perceived at the position of the real image condensed by each cylindrical / convex lens in the cylindrical / convex lens array CLA, and the cylindrical / convex lens does not act as a lens in the Y-axis direction. In the figure
As shown in (b), the recorded photosensitive recording member PSM
It is perceived that a point of light exists in the direction of the straight line connecting the recording position at p and the observer's eye.

Therefore, when the observer's eyes El and Er are present in the linear viewing area assumed at the time of recording, as shown in (a) of FIG. 12, there is no distortion as recorded. The three-dimensional image is perceived by the observer. However, if the observer sees from other than the linear viewing area assumed at the time of recording,
As shown in (b), the original image of the recorded square will be perceived by the observer as being distorted as indicated by aip ', bip', cip ', dip'. However, this point is the difference between recording and reproducing a three-dimensional image using the cylindrical convex lens array CLA and recording and reproducing a three-dimensional image using a fly's eye lens.

Then, as the recorded photosensitive recording member PSMp,
If an image of the light source PSI (PSI ′) at each of a number of three-dimensionally displaced positions in the three-dimensional space is recorded, the light source PSI recorded on the recorded photosensitive recording member PSMp.
The image at each position of (PSI ′) is collected only in the X direction by each cylindrical / convex lens in the cylindrical / convex lens / array CLA, and the original image in the three-dimensional space in front of the cylindrical / convex lens / array CLA is obtained. Since a linear real image parallel to the Y axis including the position of the point light source (extending direction of the cylindrical axis of the cylindrical / convex lens) is connected to each, it is reproduced at the position of the guide rod 3 in FIG. The real images aip, bip, cip,
Looking at dip, the entire light line or light spot appearing at the position of the real image in the three-dimensional space can be perceived as a three-dimensional image by light.

The XYZ plotter of the present invention is a light source PSI in a three-dimensional space.
A three-dimensional image by light drawn as line drawing by light or point drawing by light by light emission of (PSI ') is recorded on the photosensitive recording member PSM installed on the focal plane of the cylindrical / convex lens array CLA. Therefore, it is possible to make a three-dimensional image of a color image appear by selectively using the light source and the photosensitive recording member described above.

In addition, a light-reflective pre-recorded photosensitive recording member (for example, photographic paper) is used as the pre-recorded photosensitive recording member, and a diffused light is illuminated from the cylindrical / convex lens array side during reproduction. However, a three-dimensional image by light drawn as line drawing by light or dot drawing by light can be made to appear in the three-dimensional space in which the cylindrical convex lens array exists.

Photosensitive recording member P to be arranged so as to be located on the focal plane of the cylindrical / convex lens array CLA.
SM is a cylindrical / convex lens array CL
The photosensitive recording member PSM and the cylindrical convex lens array CLA which are to be arranged so as to be located in the focal plane of the cylindrical convex lens array CLA, which are integrated with the cylindrical convex lens array CLA, are separate bodies. It may be configured as one.

If the photosensitive recording member PSM to be arranged so as to be positioned on the focal plane of the cylindrical / convex lens array CLA is configured separately from the cylindrical / convex lens array CLA, it is recorded. The relative positional relationship between the photosensitive recording member PSMp and the cylindrical convex lens array CLA having the same configuration as the cylindrical convex lens array CLA used at the time of recording is the same as that at the time of recording. Of course, it should be combined and used for regeneration.

In the XYZ plotter of the embodiment of the present invention described so far, the image of the light source PSI (PSI ′) in the three-dimensional space in which the cylindrical / convex lens array CLA is present shows the individual images in the cylindrical / convex lens array CLA. By forming an image on the photosensitive recording member PSM installed on the focal plane of the cylindrical convex lens array CLA for each cylindrical convex lens, the photosensitivity installed on the focal plane of the cylindrical convex lens array CLA described above. Since the position information of the light source PSI (PSI ′) at each position in the three-dimensional space where the cylindrical convex lens array CLA is present is recorded on the recording member PSM, the cylindrical convex lens array CLA is recorded as described above. Light source PSI (P When the position information of I ') is irradiated with diffused light to the recorded photosensitive recording member PSMp recorded,
Cylindrical, convex lens array CLA exists 3
The reproduced image of the light source PSI (PSI ′) can be recognized by the observer M in the three-dimensional space. With the XYZ plotter described so far, when the three-dimensional image recorded by the XYZ plotter is reproduced. In addition, the range in which the original three-dimensional image targeted for recording can be viewed correctly (hereinafter referred to as the visual field) is narrow, and the target of recording is as described above from a position deviated from the above-mentioned visual field. In addition to the original three-dimensional image that was recorded, a false three-dimensional image that did not originally exist at the time of recording
It may be a problem that (ghost image, spurious image) is also recognized.

That is, the light from one light source PSI (PSI ') in the three-dimensional space in front of the cylindrical / convex lens / array CLA is imaged by each individual cylindrical / convex lens in the cylindrical / convex lens / array CLA, respectively.・ Convex lens array CL
Although recorded on the photosensitive recording member PSM installed at the position of the focal plane of A, it is recorded when reproducing the recorded content on the recorded photosensitive recording member PSMp obtained by developing the photosensitive recording member PSM. When the photosensitive recording member PSMp is irradiated with diffused light, the light passing through a large number of images recorded based on one light source PSI (PSI ′) in the recorded photosensitive recording member PSMp as described above is emitted. , Each of the individual cylindrical / convex lenses in the cylindrical / convex lens array CLA forms a real image at many positions in the space in front of the cylindrical / convex lens array CLA.

The light from one light source PSI (PSI '), which is the object of recording in the three-dimensional space in front of the cylindrical / convex lens array CLA, is changed by each cylindrical / convex lens in the cylindrical / convex lens array CLA. The diffused light emitted to the recorded photosensitive recording member PSMp along the path of the light ray that was traced when the image was recorded on the photosensitive recording member PSM installed at the position of the focal plane of the convex lens array CLA. In reverse, the 3 in front of the cylindrical / convex lens array CLA
In addition to the true reconstructed image generated in the three-dimensional space, the real image produced by the light passing through each cylindrical / convex lens to the right of each cylindrical / convex lens through which the light beam that produces the true reconstructed image has passed. In addition, the real image generated by the light passing through each cylindrical / convex lens on the left side of each cylindrical / convex lens through which the ray that causes the above-mentioned true reproduced image has passed, and many other real images are Convex lens array C
This is because it occurs as a spurious image or a ghost image in the three-dimensional space in front of LA. When the individual areas are set to have a one-to-one correspondence with the individual individual cylindrical / convex lenses described above in the same planar shape size as the individual planar shape dimensions of the multiple cylindrical / convex lenses in the cylindrical / convex lens array. In addition, as described above, in each area set on the photosensitive recording member, the light passing through the cylindrical lens / convex lens other than the cylindrical lens / convex lens corresponding to the individual area is not incident. , Object of memory in the three-dimensional space in front of the above-mentioned cylindrical convex lens array Providing means for limiting the divergence range of the luminous flux that is lit at a position corresponding to the shape of the three-dimensional image to be formed and is fanned in the direction orthogonal to the extending direction of the cylindrical axis in the cylindrical convex lens array. Can be solved satisfactorily.

As means for limiting the divergence range of the above-mentioned fan-shaped light beam, for example, a mask member having a hole of a predetermined shape is provided in the passage of the above-mentioned light beam, or the cylindrical lens 5 is used. The diameter of
Alternatively, means such as specifying the planar shape of the lens of the optical system can be adopted.

(Effects of the Invention) As is clear from the above description, the XYZ plotter of the present invention is installed on the cylindrical / convex lens / array plate and substantially the focal plane of the cylindrical / convex lens / array plate. When a surface parallel to the focal plane of the photosensitive recording member and the cylindrical convex lens array plate is assumed, the assumed surface is orthogonal to the extending direction of the cylindrical axis of the cylindrical convex lens array plate. As a fan-shaped light beam that diverges only in the direction specified as the direction to be used, the light beam that is diverged after being focused by the optical system is used, and the converging point is used as the divergent light source for recording, and the optical The divergent light source for recording formed at the condensing point by the system is placed in the three-dimensional space where the above-mentioned cylindrical, convex lens, and array plate are installed. In the information of the position of each point of the three-dimensional image to be recorded, the information about the other two coordinate axes except the position information about the coordinate axis in the extending direction of the cylindrical axis of the cylindrical lens, the convex lens, and the array plate is used. Means for three-dimensionally displacing the position information correctly, and focal plane of the cylindrical convex lens array plate in the three-dimensional space in which the cylindrical convex lens array plate is installed. There is a linear visual field set in a direction orthogonal to the extending direction of the cylindrical axis of the cylindrical convex lens array plate described above on a plane parallel to the above, and the cylindrical convex lens array plate described above 3
The planes respectively formed by the respective points of the three-dimensional image to be recorded in the three-dimensional space and the substantially straight lines formed by intersecting the surface of the cylindrical / convex lens / array plate described above And a means for recording in a linear area formed on the photosensitive recording member installed substantially on the focal plane of the array plate. An XYZ plotter in which the array plate is installed in a three-dimensional space within a moving range of a divergent light source for recording formed at a converging point by the optical system, and an XYZ plotter having the above-mentioned configuration, For the photosensitive recording member to be installed on the focal plane of the cylindrical / convex lens / array plate, the cylindrical / convex lens / array described above is used. When setting the individual areas such as the one-to-one correspondence with the individual ones of the cylindrical / convex lenses described above with the same two-dimensional shape dimensions of the individual ones of the cylindrical / convex lenses in the plate, as described above. In the individual areas set on the photosensitive recording member, the cylindrical / corresponding cylindrical areas other than the cylindrical lens / convex lens other than the convex lens are not incident on the cylindrical / convex lens. Cylindrical / convex lens from a diverging light source for recording formed at a condensing point by the optical system at a position corresponding to the shape of the three-dimensional image to be recorded in the three-dimensional space in front of the convex lens / array plate・ Limit the divergence range of the luminous flux diverging in a fan shape in the direction orthogonal to the extending direction of the cylinder axis in the array plate Since the XYZ plotter is provided with means, the XYZ plotter of the present invention draws a three-dimensional image to be recorded in the space before and after the cylindrical convex lens array plate,
In addition, it is possible to reproduce it, and in reproducing the image, it is possible to easily obtain a reproduced image without spurious images or ghost images. The points are well resolved.

[Brief description of drawings]

FIG. 1 is a perspective view showing a schematic structure of an XYZ plotter of the present invention, FIGS. 2 and 4 to 12 are views for explaining a recording / reproducing operation of a three-dimensional image, and FIG. It is a perspective view showing a schematic structure of an XYZ plotter. MB: Machine stand, CLA: Cylindrical / convex lens /
Array plate, PSM ... Photosensitive recording member, PSMp ... Recorded photosensitive recording member, SL, PSI, PSI '... Light source, DRA ... Driving device, Rx, Ry, Rz ... Rail member, Mx, My , Mz ... Stepping motor, F
x, Fyb, Fz ... Transport body, Lc ... Optical system, ai
p, bip, cip, dip ... Reproduced image of light source SL, 1, 2 ...
Pillar, 3 ... Guide rod, 4 ... Laser light source, 5 ... Cylindrical lens (cylindrical lens), 6 ... Pin, 7 ...
Support member, 8 ... Long holes formed in the support member 7,

Claims (2)

[Claims] 1. A cylindrical convex lens array plate,
Assuming a surface parallel to the focal plane of the cylindrical convex lens array plate and the photosensitive recording member installed approximately on the focal plane of the cylindrical convex lens array plate, the assumed surface As a fan-shaped light beam that diverges only in the direction defined as the direction orthogonal to the extending direction of the cylindrical axis in the cylindrical convex lens array plate described above, the light beam that is diverged after being converged by the optical system is The divergence light source for recording is used as the condensing point, and the divergence light source for recording formed at the condensing point by the optical system is used in the three-dimensional space in which the cylindrical / convex lens / array plate is installed. In the information of the position of each point of the three-dimensional image to be recorded in, the coordinate axis in the extending direction of the cylindrical axis of the cylindrical / convex lens / array plate is Means for three-dimensionally displacing the position information about the other two coordinate axes excluding all position information, and the three-dimensional space in which the cylindrical / convex lens / array plate is installed. The cylindrical visual field set in the direction orthogonal to the extending direction of the cylindrical axis of the cylindrical convex lens array plate described above with respect to the plane parallel to the focal plane of the cylindrical convex lens array plate A plane formed by each point of the three-dimensional image to be recorded in the three-dimensional space in which the convex lens array plate is present is formed so as to intersect the surface of the cylindrical convex lens array plate described above. Photosensitivity set approximately at the focal plane of the cylindrical / convex lens / array plate described above in correspondence with the substantially straight line The recording medium is provided with a means for recording in a linear region formed on the recording member, and the cylindrical / convex lens / array plate described above is formed at a condensing point by the optical system. An XYZ plotter installed in a three-dimensional space within the moving range of the divergent light source. 2. A cylindrical convex lens array plate,
Assuming a surface parallel to the focal plane of the cylindrical convex lens array plate and the photosensitive recording member installed approximately on the focal plane of the cylindrical convex lens array plate, the assumed surface As a fan-shaped light beam that diverges only in the direction defined as the direction orthogonal to the extending direction of the cylindrical axis in the cylindrical convex lens array plate described above, the light beam that is diverged after being converged by the optical system is The divergence light source for recording is used as the condensing point, and the divergence light source for recording formed at the condensing point by the optical system is used in the three-dimensional space in which the cylindrical / convex lens / array plate is installed. In the information of the position of each point of the three-dimensional image to be recorded in, the coordinate axis in the extending direction of the cylindrical axis of the cylindrical / convex lens / array plate is Means for three-dimensionally displacing the position information about the other two coordinate axes excluding all position information, and the three-dimensional space in which the cylindrical / convex lens / array plate is installed. The cylindrical visual field set in the direction orthogonal to the extending direction of the cylindrical axis of the cylindrical convex lens array plate described above with respect to the plane parallel to the focal plane of the cylindrical convex lens array plate A plane formed by each point of the three-dimensional image to be recorded in the three-dimensional space in which the convex lens array plate is present is formed so as to intersect the surface of the cylindrical convex lens array plate described above. Photosensitivity set approximately at the focal plane of the cylindrical / convex lens / array plate described above in correspondence with the substantially straight line The recording medium is provided with a means for recording in a linear region formed on the recording member, and the cylindrical / convex lens / array plate described above is formed at a converging point by the optical system for recording. In an XYZ plotter arranged to be installed in a three-dimensional space within the moving range of a divergent light source, with respect to the photosensitive recording member to be installed substantially on the focal plane of the cylindrical convex lens array plate, the cylindrical When the individual areas of the cylindrical lens / convex lens are set to have a one-to-one correspondence with the individual cylindrical / convex lenses described above in the same planar shape size as the planar shape dimensions of the individual cylindrical lens / convex lenses in the convex lens array plate, As described above, the individual areas set on the photosensitive recording member have cylindrical shapes corresponding to the individual areas. -Cylindrical other than the convex lens-The shape of the three-dimensional image to be recorded in the three-dimensional space in front of the cylindrical-convex lens-array plate described above so that the light passing through the convex lens is not incident. Divergence range of the luminous flux diverged in a fan shape from the diverging light source for recording formed at the condensing point by the optical system at the corresponding position in the direction orthogonal to the extending direction of the cylindrical axis of the cylindrical convex lens array plate XYZ plotter with means for limiting