JPH0635233B2 - 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 structure, and various other purposes.

(Prior Art) Output devices for obtaining a hard copy, such as XY plotters and electrostatic printers, which have been conventionally used as output devices of image information in computers, are all output devices of two-dimensional images.

(Problems to be Solved by the Invention) By the way, a three-dimensional graph is displayed when a computer handles a multivariable function, or a three-dimensional image is displayed when a computer designs a three-dimensional shape. In this case, a conventional method, for example, JP-A-56-696 is used.
12, JP-A-56-71387, JP-A-5
As disclosed in Japanese Laid-Open Patent Publication No. 6-72595 and others, a three-dimensional image is made into a soft copy by outputting three-dimensional image information from a computer, but the three-dimensional image is obtained as a hard copy. Since no output device capable of producing a true three-dimensional image has been provided, it has been desired to develop a device capable of obtaining a hard copy of a true three-dimensional image.

(Means for Solving the Problems) The present invention is directed to a cylindrical convex lens array, a photosensitive recording member provided on a substantially focal plane of the cylindrical convex lens array, and the cylindrical convex lens array. When a plane parallel to the focal plane of is assumed, it is divergent only in the direction defined as the direction orthogonal to the extending direction of the cylindrical axis in the cylindrical convex lens array described above with respect to the assumed plane. A light source that emits a fan-shaped light beam is selected from the information on the positions of the respective points of the three-dimensional image to be recorded in the three-dimensional space in front of the cylindrical convex lens array, which is a cylindrical convex lens. The position information about the other two coordinate axes is correctly displayed except the position information about the coordinate axis in the extending direction of the cylindrical axis of the array. And a cylindrical convex lens having a plane parallel to the focal plane of the cylindrical convex lens array in the three-dimensional space in front of the cylindrical convex lens array. A linear viewing area set in a direction orthogonal to the extending direction of the cylindrical axis in the array and each of the three-dimensional images to be recorded in the three-dimensional space in front of the cylindrical convex lens array described above. A photosensitive recording member installed on the approximately focal plane of the cylindrical convex lens array corresponding to a straight line formed by intersecting the planes of the cylindrical convex lens array and the planes respectively formed by the points and An XYZ plotter comprising means for recording on a straight line portion formed on the In XYZ plotter of the like configuration form,
With respect to the photosensitive recording member to be installed on approximately the focal plane of the cylindrical convex lens array described above, in the same planar shape dimension as the planar shape dimension of each of the large number of cylindrical convex lenses in the cylindrical convex lens array described above. When individual areas are set to correspond one-to-one with the individual cylindrical / convex lenses described above, the individual areas set in the photosensitive recording member as described above correspond to the individual areas. The three-dimensional image to be recorded in the three-dimensional space in front of the cylindrical / convex lens / array so that the light passing through the cylindrical / convex lens other than the cylindrical / convex lens is not incident. Cylindrical / convex lens / lighted at the position corresponding to the shape of
(EN) An XYZ plotter provided with means for limiting the divergence range of a light beam diverging in a fan shape in a direction orthogonal to the extending direction of the cylinder axis in an array.

(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 FIGS. 2 to 8 are diagrams for explaining a configuration principle and an operation principle of the XYZ plotter of the present invention.

In FIG. 1, MB is a machine base, and a cylindrical convex lens array (commonly called a lenticular plate, which corresponds to a fly-eye lens plate transformed into a two-dimensional shape on the machine base MB. Lens plate of the configured embodiment) C
LA and the above-mentioned cylindrical / convex lens array CL
A photosensitive recording member PSM arranged so as to be located on the focal plane of A is installed.

The cylindrical / convex lens array CLA has a configuration mode in which 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 set. Is, for example, about 0.1 mm to 0.5 mm, and is made to have a thickness such that the focal plane matches the back surface.

That is, since the fly-eye lens plate has a configuration in which a large number of individual eyes are arranged in both the vertical direction and the horizontal direction, the left and right eyes have moved in either the horizontal direction or the vertical direction. Although a stereoscopic image can be sensed even in such a case, as described above, the cylindrical convex lens array 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, the cylindrical / convex lens array CLA cannot record parallax information in the cylinder axis direction, but the human eyes are arranged side by side. The required minimum stereoscopic effect due to convergence and binocular parallax is sufficient even in the left-right direction, and compared to the fly-eye lens plate. It toward the lens array CLA is easy to manufacture, from various points, such as cylindrical,
The recording of stereoscopic information using the convex lens array CLA can contribute to the simplification of the configuration of the XYZ plotter.

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 change from an amorphous state to a crystalline state by irradiation of light or A photosensitive recording member that causes a phase change from a crystalline state to an amorphous state, a magneto-optical recording member, or the like can be used, but in the following description of the embodiments, silver is used as the photosensitive recording member PSM. It is said that a photographic dry plate or a photographic film provided with a salt photosensitive material film is used.

The cylindrical / convex lens array CLA described above in FIG. 1 is arranged such 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, and It is provided so that the direction of the cylinder axis 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
It is provided at a position apart from the cylindrical / convex lens array CLA in the axial direction by a distance D of clear vision. The position of the guide rod 3 corresponds to the linear viewing area in which both eyes should be positioned when reproducing the three-dimensional image.

In the three-dimensional space in front of the above-mentioned cylindrical convex lens array CLA, the position of one selected point of the three-dimensional image to be recorded is the center SP of divergence, and the cylindrical convex lens Array CLA
When a plane parallel to the focal plane of is assumed, the extending direction of the cylindrical axis in the cylindrical convex lens array described above with respect to the assumed plane (Y-axis in the example shown in the first illustration)
A fan-shaped light beam PL that diverges only in a direction (X-axis in the first illustrated example) defined as a direction orthogonal to
A light source SL that emits is emitted. The entire XYZ plotter shown in FIG. 1 having the above-mentioned configuration is used while being housed in a dark box.

In the configuration example shown in the first drawing, the light source SL described above converges and diverges the laser light emitted from the laser light source 4 only in the direction of the X axis by the cylindrical lens 5 to generate the above-mentioned fan-shaped light beam PL. It exists in the space where the center SP of divergence 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 a three-dimensional space in front of the cylindrical convex lens array CLA is the XYZ plotter shown in FIG. In the above configuration example, 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. 3 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 along the rail member Rz fixed to the above-mentioned X-direction transfer body x and provided so as to extend in the Z-axis direction in the XYZ orthogonal coordinate system, in the Z-axis direction by the drive rotation of the stepping motor Mz. The transfer body Fz in the Z-axis direction to be transferred, and the above-mentioned Z
The Y is transferred in the Y-axis direction by the driving rotation of the stepping motor My along a rail member Ry fixed to the axially movable body Fz and provided so as to extend in the Y-axis direction in the XYZ orthogonal coordinate system. An axial transfer body Fy is provided.

Then, in the configuration example shown in FIG. 1, the fan shape formed by converging 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 only in the X-axis direction. The position of the divergence center SP of the light flux PL, that is, the light source SL of the light flux PL diverging 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 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 rotates the respective stepping motors Mx, My, Mz in each of the transfer bodies Fx, Fy, Fz in the X, Y, and Z axis directions according to the drive signals supplied from the computer. When 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,
The cylindrical / convex lens / array CLA can be driven to be displaced to any position within a predetermined range in the three-dimensional space in front of the light source S.
By controlling the lighting state of L by a computer, within a predetermined range in the three-dimensional space in front of the cylindrical / convex lens / array CLA, the shape of a three-dimensional image to be recorded is a continuous line. The shape of the three-dimensional image to be recorded is displayed by the array of light spots.

By the way, as described above, the cylindrical / convex lens / array CLA does not have a lens function in the cylindrical axis direction of the cylindrical / convex lens / array (the direction of the Y-axis in each figure). Even if the array CLA 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, but in the XYZ plotter of the present invention, the cylindrical A three-dimensional image drawn by the displacement of the light source SL in the three-dimensional space in front of the convex lens array CLA is a three-dimensional image for the photosensitive recording member PSM arranged on the focal plane of the cylindrical convex lens array CLA. In order to be able to record, it is arranged with a focal plane in the XY plane. Ndorikaru-convex lens array CL
A luminous flux having a cross-sectional shape that does not spread in the axial direction of the cylindrical / convex lens that does not exhibit a lens function in A (the direction of the Y axis in each figure), but expands in a fan shape only in the direction of the X axis By using the light source SL that emits light, the light source SL is displaced in accordance with the three-dimensional image to be recorded in the three-dimensional space in front of the cylindrical / convex lens array CLA. is there.

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

FIG. 2 shows a light source S that emits a light beam PL diverging in a fan shape only in the X-axis direction in the YZ plane in the three-dimensional space in front of the cylindrical convex lens array CLA.
A light source in the photosensitive recording member PSM arranged so as to be located on the focal plane of the cylindrical / convex lens array CLA when L is driven and displaced by the drive device DRA so as to draw the squares a, b, c, d. FIG. 9 is a diagram showing how the image forming position of the SL image changes in the Y-axis direction (direction of the cylindrical axis of the cylindrical / convex lens ... lateral direction in FIG. 2).

In FIG. 2, ai in the photosensitive recording member PSM arranged so as to be located on the focal plane of the cylindrical / convex lens array CLA is the position of a in the three-dimensional space in front of the cylindrical / convex lens array CLA. 2 shows an image forming portion of an image of the light source SL when there is a light source SL, and in FIG. 2, the photosensitivity is arranged so as to be located on the focal plane of the cylindrical / convex lens array CLA. Bi in recording member PSM
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 the cylindrical convex lens array CLA.
In the three-dimensional space in front of the cylindrical / convex lens / array CLA, the lighting position of the light source SL is c in FIG.
When it is moved to the position of d, the image of the light source SL is located at the position indicated by ci, di in FIG. 2 in the photosensitive recording member PSM installed on the focal plane of the cylindrical / convex lens array CLA. It is imaged.

FIG. 2 is illustrated so that the YZ plane and the paper plane described above coincide with each other, and the direction of the cylindrical axis of the cylindrical / convex lens array CLA (the direction of the Y axis) is shown in the lateral direction of the figure. Cylindrical, convex lens array CLA
X in the YZ plane in the three-dimensional space in front of
When the light source SL that emits the light beam PL that diverges in a fan shape only in the axial direction is driven and displaced by the driving device DRA so as to draw the squares a, b, c, and d, the focal plane of the cylindrical convex lens array CLA will be described. The image forming position of the image of the light source SL formed on the photosensitive recording member PSM arranged so as to be positioned is the cylindrical axis of the cylindrical convex lens as indicated by ai, bi, ci and di in FIG. It will be in a state of being lined up in the direction.

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

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 beam in the direction of the cylindrical axis of the cylindrical / convex lens (the direction of the Y-axis) is approximately equal to the lens width of each cylindrical / convex lens in the cylindrical / convex lens / array CLA at least at the portion incident on the cylindrical / convex lens / array CLA. Since it is made sufficiently small so that each of the plurality of cylindrical convex lenses arranged in the X-axis direction as described above, the light source SL imaged on the photosensitive recording member PSM is formed. The image is the cylindrical convex lens array C described above with respect to the plane parallel to the focal plane of the cylindrical convex lens array CLA in the three-dimensional space in front of the cylindrical convex lens array CLA.
The linear visual field (position of the guide rod 3) set in the direction (X-axis direction) orthogonal to the extending direction of the cylindrical axis (direction of the Y-axis) in LA and the cylindrical convex lens array CLA described above. The above-mentioned cylindrical / convex lens array CL is a plane formed by each point of the three-dimensional image to be recorded in the front three-dimensional space.
Recording is performed on the straight line portion formed on the photosensitive recording member PSM provided on the approximately focal plane of the cylindrical convex lens array corresponding to the straight line formed by intersecting the surface A. 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, even if the cylindrical / convex lens array CLA is used in the XYZ plotter of the present invention configured as described above, the cylindrical / convex lens array C is used.
In the three-dimensional space in front of the LA, the luminous flux diverges in a fan shape only in the X-axis direction as described above, and can be incident on the cylindrical / convex lens array CLA with a sufficiently small thickness in the Y-axis direction. By driving and displacing the light source SL that emits PL according to the shape of the three-dimensional image to be recorded, recording is performed on the photosensitive recording member PSM installed substantially on the focal plane of the cylindrical convex lens array. The targeted 3D image can be recorded.

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

In the XYZ plotter of the first embodiment shown above, 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 also used. The guide rod 3 described above is loosely fitted into the long hole 8 formed in the drive unit DRA of the light source SL in the XYZ plotter.
Each of the above-mentioned X, Y, and Z axis transfer bodies Fx, Fy, F
Each of the z stepping motors Mx, My, Mz is rotationally driven according to the drive signal supplied from the computer, so that the center line of the rotary shaft 6 planted on the transfer body Fy in the Y-axis direction. When the above-mentioned light source SL located on the extension is displaced and driven within a predetermined range in the three-dimensional space in front of the cylindrical / convex lens array CLA, by the operation of the mechanism having the above-described structure, at the time of reproduction. The position of the guide rod 3 corresponding to the linear viewing area where both eyes should be placed, and the surface including the light source SL at that time correspond to the area of the line intersecting with the surface of the cylindrical / convex lens array CLA. And the spread of the fan-shaped light beam PL diverging only in the X-axis direction emitted from the light source SL so that recording is performed on the photosensitive recording member PSM.
This is an example of the configuration in which the tilt angle with the −Y plane is mechanically changed, but the XYZ plotter of the present invention emits light from the light source SL as in the case of the above-described first illustrated embodiment. A mechanism for mechanically changing the spread angle of the fan-shaped light beam PL diverging only in the X-axis direction and the inclination angle with the XY plane is not used, but is implanted in the transfer body Fy in the Y-axis direction. The light source SL located on the extension of the center line of the rotating shaft 6 is divergent only in the X-axis direction and X-Z.
A fan-shaped light beam PL parallel to the surface (the thickness of the light beam in the Y-axis direction is made small as in the case of the first embodiment).
Is radiated, and when the light source SL is displaced within a predetermined range in the three-dimensional space in front of the cylindrical / convex lens / array CLA, a straight line shape to which both eyes should be placed during reproduction. The position of the guide rod 3 corresponding to the viewing area and the surface including the light source SL at that time correspond to the area of the line intersecting with the surface of the cylindrical / convex lens / array CLA at the portion of the photosensitive recording member PSM. It can also be implemented as another embodiment in which the positional information in the Y-axis direction is corrected so as to be in a state where recording is performed, as described later as equation (1). The laser light source 4, the cylindrical lens 5 and the like shown by imaginary lines in FIG. 6 (the same applies to FIG. 8) are shown representatively in the case of the above-described first illustrated embodiment,
Further, the laser light source 4, the cylindrical lens 5 and the like shown by the solid line in FIG. 6 correspond to the case of the other embodiment described above.

That is, in FIG. 4 having the same contents as FIG. 2 used to show the recording operation of the XYZ plotter of the embodiment shown in FIG. 1, 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 CLA, and the point P in FIG. 4 is the position of the light source SL. Cylindrical / Convex lens / Array CL
The height from the surface of A is d, and the distance in the height direction from the viewpoint VP is at the position (D-d). Further, the 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, the distance up to the position i at which the image of the light source at point P described above is formed and recorded. The distance L in the Y-axis direction from the viewpoint VP is expressed by the following equation (1) D / L = (D−d) / l, L = (D · l) / (D−d) based on the similarity of triangles. Since it is indicated by (1), only in the direction of the X axis 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. A fan-shaped light beam P diverging and parallel to the XZ 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 CLA, a linear visual field in which both eyes should be placed during reproduction. The position including the position of the guide rod 3 corresponding to and the surface including the light source SL at that time corresponds to the area of the line intersecting with the surface of the cylindrical / convex lens / array CLA. The information in the Y-axis direction is corrected by the relationship shown in the equation (1) so that the information is recorded, and the recording is performed.

As apparent from FIGS. 6 to 8, in order to record and reproduce the same three-dimensional image in the above-described two different embodiments, the position information in the X-axis direction and the position in the Z-axis direction are required. It is the same as the information, and it is necessary to correct the positional information in the Y-axis direction only as in the equation (1).

By controlling the lighting state of the light source SL by a computer, the cylindrical / convex lens array C is formed.
Within the predetermined range in the three-dimensional space in front of the LA, the shape of the three-dimensional image to be recorded is displayed as a continuous linear light locus, or the recording target is recorded. The shape of the three-dimensional image to be displayed is displayed by the array of light spots.

The photosensitive recording member P provided on the focal plane of the cylindrical / convex lens array CLA in the recording mode as described above.
Cylindrical / convex lens array C recorded in SM
As for the image of the point light source in the three-dimensional space in front of the LA, if the photosensitive recording member PSM is a positive type, by developing it, only the portion of the image of the point light source becomes transparent and the other part Is developed in such a manner that the image becomes black.

FIG. 3 shows the recorded photosensitive recording member PSM in which the position information of the light source SL located in the three-dimensional space in front of the cylindrical convex lens array CLA is recorded as described above.
By irradiating p with diffused light, the original light source SL in the space in front of the cylindrical / convex lens array CLA
FIG. 4 is a diagram for explaining that a reproduced image of PSMp can be revealed. In FIG. 3, PSMp has a mode in which only the image portion of the point light source is transparent and the other portions are black. The developed photosensitive recording member PSMp.

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 transmitted through the recorded photosensitive recording member PSMp is condensed only in the X-axis direction by the individual cylindrical / convex lenses in the cylindrical / convex lens array CLA, and as shown in FIG. Connect a straight solid line parallel to the Y-axis that includes aip, bip, cip and 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 a viewing area during reproduction as shown in FIG. 5, the direction of the X axis is shown in FIG. 9 (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. The recorded photosensitive recording member PS as shown in FIG.
It is perceived that a point of light exists in the direction of the straight line connecting the memory position in Mp 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, recording is performed as shown in (a) of FIG. 10 (same as FIG. 3). 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. Observers perceive it as distorted as indicated by bip ', cip', dip '. This point is recorded and reproduced by using a cylindrical / convex lens array CLA. This is a difference from recording and reproducing a three-dimensional image 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 array C
Each cylindrical / convex lens in LA collects light only in the X direction, and includes the Y-axis (the cylindrical axis of the cylindrical / convex lens of the cylindrical lens of the cylindrical / convex lens) in the three-dimensional space in front of the cylindrical / convex lens array CLA. Since the straight real images parallel to the (extending direction) are connected to each,
Looking at the real images aip, bip, cip, dip with the position of the guide rod 3 in FIG. 1 as the viewing area during reproduction, the light lines appearing at the positions of the real images in the three-dimensional space described above. Alternatively, the entire spot of light can be perceived as a three-dimensional image of light.

As is clear from the description with reference to FIGS. 2 to 5 and FIGS. 9 and 10, the XYZ plotter of the present invention draws a line by light by turning on the light source SL in the three-dimensional space. Alternatively, a cylindrical, convex lens array CLA can be used to create a three-dimensional image of light drawn as a point drawing of light.
Since the image is recorded on the photosensitive recording member PSM installed on the focal plane of No. 3, it is possible to make a three-dimensional image by 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 instead of the light-transmissive type, and the light is illuminated by diffused light from the cylindrical / convex lens array side during reproduction. However, in the three-dimensional space in front of the cylindrical / convex lens array, a three-dimensional image by light drawn as line drawing by light or dot drawing by light can appear.

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 SL in the three-dimensional space in front of the cylindrical / convex lens array CLA is the same for each individual cylindrical / convex lens in the cylindrical / convex lens array CLA. The photosensitive recording member PSM installed on the focal plane of the cylindrical / convex lens array CLA
By being imaged on the photosensitive recording member PSM installed on the focal plane of the cylindrical convex lens array CLA, each position in the three-dimensional space in front of the cylindrical convex lens array CLA. Light source S
Since the position information of L is recorded, the position information of the light source SL at each position in the three-dimensional space on the front surface of the cylindrical / convex lens array CLA is recorded on the recorded photosensitive recording member PSMp as described above. When the diffused light is irradiated to the observer M, the reproduced image of the light source SL can be recognized in the three-dimensional space in front of the cylindrical / convex lens / array CLA. However, in the XYZ plotter described so far. , When the three-dimensional image recorded thereby is reproduced, the range in which the original three-dimensional image targeted for recording can be correctly viewed (hereinafter referred to as the visual range) is narrow, and the outside of the above-mentioned visual range. In addition to the original three-dimensional image that was the subject of recording, false three-dimensional images (ghost image, spurious image) that did not originally exist at the time of recording are also recognized from the displaced position. It arises in that there can be a problem.

The above problems will be specifically described as follows.
With the XYZ plotter having the configuration described above, one in the three-dimensional space in front of the cylindrical / convex lens array CLA
The image of each light source SL is a photosensitive recording member PS provided at the position of the focal plane of the cylindrical / convex lens array CLA.
Assuming that the recording is made on M, the recorded photosensitive recording member PSMp obtained by subjecting the photosensitive recording member PSM to development processing is subjected to diffused light from the side opposite to the cylindrical / convex lens array CLA to the recorded photosensitive recording member PSMp. Upon irradiation, the light transmitted through the recorded photosensitive recording member PSMp is condensed for each individual cylindrical lens / convex lens in the cylindrical lens / convex lens array CLA, so that the cylindrical lens / convex lens as illustrated in FIG. Real images are respectively formed on aip, bip, cip, and dip in the three-dimensional space in front of the array CLA, so that the real image aip, bip, cip, See the dip (5th
The figure shows 3 from the front of the above-mentioned recorded photosensitive recording member PSMp.
The relationship between the observer's left eye El, right eye Er, and the arrangement of the cylindrical / convex lens array CLA when recognizing a three-dimensional image is shown), and a light point exists at the position of the real image. Although it is perceived as a thing, as described above, in the three-dimensional space in front of the cylindrical / convex lens array CLA, in addition to the positions of aip, bip, cip, and dip described above, spurious images or ghosts are also present. The image arises.

That is, the light from one light source SL 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. The data is recorded on the photosensitive recording member PSM installed at the position of the focal plane of the CLA, but it is recorded when the recorded contents on the recorded photosensitive recording member PSMp obtained by developing the photosensitive recording member PSM are reproduced. When the photosensitive recording member PSMp is irradiated with diffused light, the recorded photosensitive recording member PSMp is recorded as described above.
The light that has passed through a number of image portions recorded based on one light source SL in the above-mentioned light source is stored in the space in front of the cylindrical / convex lens array CLA by each of the individual cylindrical / convex lenses in the cylindrical / convex lens array CLA. Real images are formed in many positions.

That is, the light from one light source SL, which is the recording target in the three-dimensional space in front of the cylindrical / convex lens array CLA, is the cylindrical / convex lens array C.
The paths of the light rays traced when the image is recorded on the photosensitive recording member PSM installed at the position of the focal plane of the cylindrical convex lens array CLA by the respective cylindrical convex lenses in the LA are recorded as the recorded photosensitive recording members PSMp.
In addition to the true reconstructed image generated in the three-dimensional space in front of the cylindrical / convex lens array CLA, the diffused light irradiating to Only one for each cylindrical / convex lens. One for each cylindrical / convex lens through which the light ray that has passed through each cylindrical / convex lens on the right side and the ray that causes the above-mentioned true reproduced image have passed. This is because a real image generated by light that has passed through the respective cylindrical / convex lenses adjacent to the left, and many other real images are generated as spurious images or ghost images in the three-dimensional space in front of the cylindrical / convex lens array CLA.

In the XYZ plotter of the first illustrated embodiment 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 The problem is that, in addition to the original 3D image that was the object of recording, a false 3D image (ghost image, spurious image) that did not originally exist at the time of recording is also recognized from the deviated location. There was a chance

The cylindrical / convex lens array, the photosensitive recording member installed on the approximately focal plane of the cylindrical / convex lens array, and the recording surface in the three-dimensional space in front of the cylindrical / convex lens array. When assuming a plane parallel to the focal plane of the above-mentioned cylindrical convex lens array, with the position of one selected point of the power-third image as the center of divergence, the cylindrical convex lens described above with respect to the assumed plane A cylindrical 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 cylinder axis in the array.
3 in relation to each selected point in the 3D image being recorded in 3D space in front of the array
A means for dimensionally displacing the above-mentioned cylindrical
When a plane parallel to the focal plane of the cylindrical convex lens array is assumed in the three-dimensional space on the front surface of the convex lens array, the extension of the cylindrical axis in the cylindrical convex lens array described above with respect to the assumed plane. A linear visual field set in a direction defined as a direction orthogonal to the direction and a selected one point of a three-dimensional image to be recorded in a three-dimensional space in front of the cylindrical convex lens array. The flat surface formed by and corresponds to the straight line formed by intersecting the surface of the above-mentioned cylindrical convex lens array, and is formed on the photosensitive recording member installed on the approximately focal plane of the above cylindrical convex lens array. XYZ having a structure as shown in FIG.
In the plotter, with respect to the photosensitive recording member to be installed approximately on the focal plane of the above-mentioned cylindrical convex lens array, the same plane as the planar shape dimension of each of the plurality of cylindrical convex lenses in the cylindrical convex lens array described above. When individual regions are set so as to correspond one-to-one with the individual cylindrical / convex lenses described above in terms of shape and dimensions, the individual regions set in the photosensitive recording member as described above will be It should be recorded in the three-dimensional space in front of the cylindrical / convex lens array so that the light passing through the cylindrical / convex lens other than the cylindrical / convex lens corresponding to the area is not incident. Cylindrical / convex lens that is turned on at a position corresponding to the shape of the three-dimensional image It can be satisfactorily solved by providing means to limit the divergence range of the light beam diverging fan in the direction orthogonal to the extending direction of the cylinder axis in the array.

As a 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 light beam, or the cylindrical lens 5 is used. It is possible to employ means such as appropriately determining the diameter of the.

(Effects of the Invention) As is apparent from the above description, the present invention provides a cylindrical / convex lens array, and a photosensitive recording member disposed substantially at the focal plane of the cylindrical / convex lens array. When assuming a surface parallel to the focal plane of the cylindrical convex lens array described above, only the direction defined as the direction orthogonal to the extending direction of the cylindrical axis in the cylindrical convex lens array described above with respect to the assumed surface. The light source that emits a fan-shaped luminous flux that is diverging into
Within the information on the position of each point of the three-dimensional image to be recorded in the three-dimensional space in front of the convex lens array,
A means for three-dimensionally displacing in a manner such 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 convex lens array is correctly shown. The plane parallel to the focal plane of the cylindrical convex lens array in the three-dimensional space on the front surface of the cylindrical convex lens array is set in the direction orthogonal to the extending direction of the cylindrical axis of the cylindrical convex lens array. The plane formed by the linear viewing area 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 is a plane of the cylindrical convex lens array described above. The cylindrical lens / convex lens described above corresponding to the straight line formed by intersecting the surface An XYZ plotter having means for performing recording on a straight line portion formed on a photosensitive recording member provided on a substantially focal plane of a ray, and an XYZ plotter having the above-described configuration mode. , A photosensitive recording member to be installed substantially on the focal plane of the above-mentioned cylindrical convex lens array, the same plane as the plane shape dimension of each of the plurality of cylindrical convex lens arrays in the cylindrical convex lens array described above. When individual regions are set so as to correspond one-to-one with the individual cylindrical / convex lenses described above in terms of shape and dimensions, the individual regions set in the photosensitive recording member as described above will be Light that has passed through the cylindrical / convex lenses other than the cylindrical / convex lenses corresponding to the area is not incident. As described above, the cylindrical axis of the cylindrical convex lens array is extended by being 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. Since the XYZ plotter is provided with means for limiting the divergence range of the light beam diverging in a fan shape in the direction orthogonal to the direction, the XY of the present invention.
The Z plotter can easily provide a hard copy that allows a high-quality three-dimensional image to be easily drawn in a three-dimensional space as a line drawing or a dot drawing despite the simple configuration. In the XYZ plotter, when the diffused light is irradiated to the recorded photosensitive recording member PSMp in which the position information of the light source SL at each position in the three-dimensional space in front of the cylindrical convex lens array is recorded, the cylindrical As a reproduced image reproduced in the three-dimensional space in front of the convex lens array, a range (viewing area) where a true reproduced image corresponding to the light source SL targeted for recording can be recognized by an observer, It is possible to prevent the reconstructed image of the image from overlapping the range that can be recognized by the observer.

[Brief description of drawings]

FIG. 1 is an example of an essential part for explaining the constitutional principle of an XYZ plotter of the present invention, and FIGS. 2 to 10 are explanatory diagrams of the constitutional principle and operation principle of a three-dimensional image by the XYZ plotter. MB: Machine stand, CLA: Cylindrical / convex lens /
Array, PSM ... Photosensitive recording member, PSMp ... Recorded photosensitive recording member, SL ... Light source, DRA ... Driving device, Rx, Ry, Rz ... Rail member, Mx, My, M
z ... Stepping motor, Fx, Fy, Fz ... Transport body, aip, bip, cip, dip ... Reproduced image of light source SL, 1, 2 ...
… Posts, 3 ... Guide rods, 4 ... Laser light source, 5 ... Cylindrical lenses (cylindrical lenses), 6 ... Pins, 7 ...
... Support member, 8 ... Long hole formed in the support member 7,

Claims (2)

[Claims] 1. A cylindrical / convex lens array, a photosensitive recording member installed substantially on the focal plane of the cylindrical / convex lens array, and a plane parallel to the focal plane of the cylindrical / convex lens array. Then, a light source that emits a fan-shaped luminous flux diverging 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 the assumed surface 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 direction of extension of the cylindrical axis of the cylindrical convex lens array Three-dimensional by the mode in which the position information about the other two coordinate axes excluding the position information about the coordinate axes is correctly shown. And a direction in which the cylindrical axis of the cylindrical convex lens array extends in the three-dimensional space on the front surface of the cylindrical convex lens array parallel to the focal plane of the cylindrical convex lens array. The linear viewing area set in the direction orthogonal to the
A plane formed by each point of the three-dimensional image to be recorded in the three-dimensional space on the front surface of the convex lens array and a straight line formed by intersecting the surface of the cylindrical convex lens array described above. Correspondingly, an XYZ plotter comprising means for performing recording on a linear portion formed on a photosensitive recording member provided substantially on the focal plane of the cylindrical convex lens array described above. 2. A cylindrical / convex lens array, a photosensitive recording member provided substantially on the focal plane of the cylindrical / convex lens array, and a plane parallel to the focal plane of the cylindrical / convex lens array. Then, a light source that emits a fan-shaped luminous flux diverging 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 the assumed surface 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 direction of extension of the cylindrical axis of the cylindrical convex lens array Three-dimensional by the mode in which the position information about the other two coordinate axes excluding the position information about the coordinate axes is correctly shown. And a direction in which the cylindrical axis of the cylindrical convex lens array extends in the three-dimensional space on the front surface of the cylindrical convex lens array parallel to the focal plane of the cylindrical convex lens array. The linear viewing area set in the direction orthogonal to the
A plane formed by each point of the three-dimensional image to be recorded in the three-dimensional space on the front surface of the convex lens array and a straight line formed by intersecting the surface of the cylindrical convex lens array described above. Correspondingly, in the XYZ plotter, which is provided with a means for performing recording on a linear portion formed on the photosensitive recording member provided substantially on the focal plane of the cylindrical convex lens array described above, Regarding the photosensitive recording member that should be installed at approximately the focal plane of the cylindrical convex lens array,
In the cylindrical convex lens array described above, the cylindrical shape having the same planar shape dimension as that of each of the plurality of cylindrical convex lenses
When individual areas are set so as to correspond one-to-one with the individual ones of the convex lenses, the individual areas set on the photosensitive recording member as described above have cylindrical surfaces corresponding to the individual areas.・ Cylindrical other than the convex lens ・ 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 so that the light passing through the convex lens is not incident. Is lit at the position
An XYZ plotter 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 in the convex lens array.