JP2704080B2 - Stereoscopic image recording method and stereoscopic image recording apparatus - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is capable of recording a three-dimensional image on a lenticular recording material having a recording layer integrally formed on the back surface of a lenticular sheet, and is capable of performing image processing such as enlargement / reduction and lenticular sheet. The present invention relates to a three-dimensional image recording apparatus capable of easily coping with a change in the specifications of the present invention and capable of easily producing a high-quality three-dimensional image in a simple process.

[0002]

2. Description of the Related Art A three-dimensional image recording using a lenticular sheet is performed, for example, on a lenticular recording material F having a recording layer D on the back surface of a lenticular sheet C from different left and right viewpoints, as in a two-lens system shown in FIG. Original images A ₁ and A ₂
Is projected through projection lenses B ₁ , B ₂ , decomposed into a linear image by a lenticular sheet C, and recorded as E ₁ , E _{2, and the} like. The recording layer D in the projected image recorded E _1, E _2, eye L of the right and left as shown in Figure 13, by observing through the lenticular sheet C of the lenticular recording material F in R, the original image A ₁ and image a ₂ are stereoscopically.

As a three-dimensional image recording apparatus (hereinafter referred to as a recording apparatus) for recording a linear image on such a lenticular recording material, an original image which is a transmission image is irradiated by a light source such as a halogen lamp. As shown in FIG. 12, there is known a recording apparatus by optical exposure (printing) in which transmitted light of an original image is imaged on a lenticular recording material via a lenticular sheet by a projection lens and exposed as a linear image. No. 42-5473, 48-6
488, 49-607, and 53-33847 each disclose a recording apparatus that projects two original images onto a lenticular recording material and prints them.

It is also known that a high-quality stereoscopic image can be obtained by increasing the number of original images. Japanese Patent Publication No. 58-7981 discloses a method of sequentially exposing a large number of original images to a lenticular recording material. The device is a Japanese Patent Publication No. 56-31.
No. 578 discloses a recording apparatus which collectively projects a large number of original images on a field lens and then records each original image on a lenticular recording material at a corresponding printing angle by a projection lens corresponding to each original image. ing.

In Japanese Patent Application Laid-Open No. 3-185438, a reciprocating shutter is used, and the speed of the shutter is slightly changed during the movement so that exposure (printing) is performed through a lenticular lens to form a three-dimensional image. There is disclosed a method of correcting exposure unevenness which is inevitably generated when recording and is caused by vignetting of a projection lens and a lenticular lens.

In such an optical three-dimensional image recording apparatus, it is necessary to project a plurality of original images onto a lenticular recording material and expose the same, so that an optical system for projecting the original images onto the lenticular recording material is complicated. Unavoidable structure, and the degree of freedom in designing the optical system is low. In particular, as the number of original images for obtaining high image quality increases, the optical system becomes extremely complicated and large-scale. Furthermore, it is optically compatible with magnification changes such as enlargement and reduction of recorded images,
Restricted mechanically. In addition, the specifications of the lenticular sheet, such as the pitch of the lenticular sheet to be used, are changed in accordance with the change of the viewing distance. In this case, the change of the projection condition (apparatus configuration), such as the change of the projection exposure (printing) angle, is required. It cannot be easily dealt with because it needs to be performed mechanically and mechanically. Similarly, it is also difficult to cope with a change in the recording image size.

That is, the conventional three-dimensional image recording apparatus that performs optical projection exposure is complicated and difficult to handle, and cannot record a high-quality three-dimensional image with a high degree of freedom with good efficiency. Was.

On the other hand, a three-dimensional image recording method that uses a relatively simple optical system and that can easily cope with image processing such as changing the magnification of a recorded image and sharpness, as well as changing the specification of a recorded image size and a lenticular sheet. Image recording by scanning exposure is known, and various apparatuses and methods have been proposed.

For example, Japanese Patent Publication No. 59-3781 discloses that a plurality of original images are photographed and processed by a TV camera, stored in a frame memory, and the stored image signals are used in accordance with the pitch of a lenticular lens used. A three-dimensional image recording method is disclosed in which a linear image is sequentially taken out as a (linear) image, a linear image is recorded on a recording material by scanning exposure, and then a lenticular sheet is attached to the recording material.

Japanese Patent Application Laid-Open No. 1-295296 discloses that steric space coordinate data obtained from image information of a plurality of original images having unique continuous disparity information or time difference information is applied to a lenticular lens of a lenticular sheet. A pixel for a stereoscopic image is formed by performing a division process as a linear image into a corresponding section, and the pixels are arranged in reverse order with respect to the parallax information or the time difference information and recorded on a recording material. A method for creating a three-dimensional, variable pixel forming sheet to be attached to a sheet is disclosed.

[0011]

As is apparent from the above configuration, a recording apparatus for a three-dimensional image by scanning exposure basically converts image information of a plurality of original images obtained by a TV camera or the like into a line. Process as a shape image. This image information is then transferred to a scanning exposure apparatus, and a linear beam of each original image is placed in a predetermined order within one pitch of a lenticular sheet by a light beam modulated according to the image information.
Scanning exposure is performed sequentially so that the recording material G
A linear image is recorded on the. That is, in the case of stereoscopic image recording using two original images a and b, as shown in FIG. 14, the linear images a and b are arranged one by one in a predetermined order corresponding to the pitch P of the lenticular sheet. And the recording is repeated for each pitch P, whereby the recording material G
Next, the linear images of the original images a and b are sequentially and sequentially recorded.

When the recording of all original images on the recording material G is completed, the recording cycle of each original image on the recording material E (a → a →
(period b) and the pitch P of the lenticular sheet are accurately aligned so that they are pasted together, and the recording of the stereoscopic image is completed.

According to such a recording apparatus of a three-dimensional image by scanning exposure, magnification change such as enlargement or reduction of a recorded image can be achieved by:
Since the read image information can be performed simply by processing it electrically, there is no inconvenience such as complicating the optical system, and various image processing such as sharpness and contour enhancement are also easily performed. be able to. Further, even if the number of original images increases, image recording can be basically performed by one scanning exposure apparatus, so that there is no problem such as an increase in the size and complexity of the apparatus configuration.

However, these recording apparatuses using scanning exposure cannot perform image recording on a lenticular recording material in which a recording layer is integrally disposed on the back side of a lenticular sheet. After recording the linear images of the original images on G, it is necessary to accurately match the recording cycle of each original image with the pitch P of the lenticular sheet C and bond them together. If the positional relationship between the two goes wrong,
Not only can the recorded image not be suitably viewed in a stereoscopic manner, but also disadvantages such as the generation of an inverted stereoscopic image and a multiple image occur.

Here, the pitch P of the lenticular sheet C
Is 5 for large displays such as displays in large places.
Although there is a case where an object having a diameter of at least mm is used, an object having a size of about 0.1 mm to 0.3 mm is widely used in a case of a normal stereoscopic photograph or the like. Therefore, the operation of accurately positioning and bonding the lenticular sheet C and the recording material G on which the linear image is recorded is a very skillful and time-consuming operation, and furthermore, the positions of both are accurately determined. Because it is difficult to match, a high-quality stereoscopic image cannot be produced with good efficiency.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art, and to perform image recording by scanning exposure on a lenticular recording material having a recording layer integrally provided on the back surface of a lenticular sheet. Therefore, it is not necessary to attach the lenticular sheet to the recording material after recording the linear image, and also change the magnification of the recorded image, image processing such as sharpness, change the specification of the lenticular sheet, change the size of the recorded image The present invention relates to a three-dimensional image recording method and a three-dimensional image recording device using a lenticular recording material, which can easily cope with the above-mentioned problems and can produce a high-quality three-dimensional image in a simple process.

[0017]

In order to achieve the above object, a stereoscopic image recording method according to the present invention is directed to a lenticular recording material having a recording layer disposed on the back side of a lenticular sheet, and a plurality of lenticular recording materials from different viewpoints. Upon recording the original image by scanning exposure, to obtain image information of the plurality of original images,
For each original image as the image information to be recorded on the lenticular recording material, a light beam modulated according to the image information, at an angle according to the formation conditions of the original image of the linear image to be recorded on the lenticular sheet A steric image recording method is provided, wherein the lenticular recording material is incident and scan-exposed.

Further, in order to achieve the above object, a first aspect of the three-dimensional image recording apparatus of the present invention is to provide a lenticular recording material having a recording layer disposed on the back side of a lenticular sheet, and A three-dimensional image recording apparatus for recording the original image by scanning exposure, wherein the image processing means obtains image information of the plurality of original images and processes the image information to be recorded on the lenticular recording material; and Light beam emitting means for emitting a light beam modulated in accordance with image information processed by the means, and a plurality of light beam optics for causing the light beam to enter a lenticular sheet at an angle corresponding to a condition for forming an original image for recording the light beam And the light beam emitted from the light beam emitting means is distributed to the light beam optical system for each scanning line of the original image scanning according to the original image to be recorded. Optical path switching means, means for main scanning the lenticular recording material with the light beam in a direction substantially the same as the generatrix direction of the lenticular sheet, and the light beam in a sub-scanning direction substantially orthogonal to the main scanning direction. Scanning means having means for relatively moving the lenticular recording material.

In a second aspect of the three-dimensional image recording apparatus of the present invention, a plurality of original images from different viewpoints are recorded on a lenticular recording material having a recording layer disposed on the back side of a lenticular sheet by scanning exposure. Image processing means for obtaining image information of the plurality of original images and processing the image information to be recorded on the lenticular recording material, and light of different wavelengths according to the recording layer. A set of light sources for emitting a beam, a beam splitter for splitting the light beam emitted from the light source into a plurality of light beams, and modulating the split light beams according to image information of an original image to be recorded. A plurality of sets of light beam modulating means and the light beams modulated by the light beam modulating means enter the lenticular sheet at an angle corresponding to the conditions for forming the original image to be recorded. A plurality of light beam optical systems, means for main-scanning the lenticular recording material with the light beam in a direction substantially the same as the generatrix direction of the lenticular sheet, and a sub-scanning direction substantially orthogonal to the main scanning direction; A three-dimensional image recording apparatus, comprising: a scanning unit having a unit for relatively moving a light beam and the lenticular recording material.

According to a third aspect of the stereoscopic image recording apparatus of the present invention, a plurality of original images from different viewpoints are recorded by scanning exposure on a lenticular recording material having a recording layer disposed on the back side of a lenticular sheet. A stereoscopic image recording apparatus, comprising: an image processing unit that obtains image information of the plurality of original images and processes the image information to be recorded on the lenticular recording material; A plurality of image forming units, comprising: a light beam emitting unit that emits a modulated light beam; and a light beam optical system that causes the light beam to enter a lenticular sheet at an angle corresponding to a forming condition of an original image for recording the light beam. Means for main-scanning the lenticular recording material with the light beam in a direction substantially the same as the generatrix direction of the lenticular sheet, and the main scanning direction In the sub-scanning direction substantially orthogonal to provide a stereoscopic image recording apparatus, comprising a scanning means having a means for relatively moving said light beam and said lenticular recording material.

According to a fourth aspect of the stereoscopic image recording apparatus of the present invention, a plurality of original images from different viewpoints are recorded by scanning exposure on a lenticular recording material having a recording layer disposed on the back side of a lenticular sheet. A three-dimensional image recording apparatus for obtaining image information of the plurality of original images, processing the image information to be recorded on the lenticular recording material, and processing the image information processed by the image processing means. A light beam emitting means for emitting a light beam modulated in response thereto, and a scanning drum which winds and holds the lenticular recording material so that the generatrix coincides with the circumferential direction of the lenticular recording material, and rotates in the circumferential direction. A sub-scanning means for moving the scanning drum or the light beam in a sub-scanning direction substantially perpendicular to a rotation direction of the scanning drum; The light beam emitted from the means is refracted at a predetermined angle in the sub-scanning direction, and has a plurality of lenses that are incident on the lenticular recording material at an angle corresponding to the forming condition of the original image to be recorded, according to the original image to be recorded. A stereoscopic image recording apparatus comprising: an optical path changing unit that switches the lens.

In the three-dimensional image recording apparatus of the present invention, it is preferable that the light beams for recording the same original image are combined into one light beam.

In the three-dimensional image recording apparatus of the present invention, it is preferable that the light beam passes through the center of curvature of each lenticular lens forming the lenticular sheet.

[0024]

The three-dimensional image recording method and three-dimensional image recording apparatus of the present invention obtain a three-dimensional image by recording an image on a lenticular recording material having a recording layer formed on the back surface of a lenticular sheet (on which a recording material is disposed). The image information of the original image is obtained by, for example, photoelectrically reading a plurality of original images, and each original image is divided to electrically form a linear image and perform image processing such as an array of the linear images. As the image information to be recorded on the lenticular recording material, the light beam modulated according to the image information is incident on the lenticular recording material at an angle according to the shooting data of the original image or the specification of the lenticular sheet, and scanning is performed. A three-dimensional image is recorded on the lenticular recording material by exposure.

Conventionally, as a device for recording a three-dimensional image on a lenticular recording material, projection light of a plurality of original images is incident on a lenticular sheet at an exposure angle corresponding to shooting conditions of the original image, and a linear image is formed by the lenticular sheet. An optical three-dimensional image recording device that exposes (prints) a recording layer by decomposing the recording layer into an image is known. However, this recording device has expanded,
Change the magnification of the recorded image such as reduction, change the recorded image size,
As described above, there is a problem that the apparatus configuration becomes extremely complicated in order to cope with an increase in the number of original images for improving the image quality, a change in the specification of the lenticular sheet, and the like.

On the other hand, with an optical system having a relatively simple configuration, it is possible to relatively easily cope with image processing such as magnification change, an increase in the number of original images, lenticular sheet specifications, and a change in the size of a recorded image. As a recording method, a method of recording a stereoscopic image by scanning exposure is known. However,
Conventional three-dimensional image recording by scanning exposure cannot directly record an image on a lenticular recording material in which a lenticular sheet and a recording layer (recording material) are integrated, and a linear image of an original image is recorded on various recording materials. After recording the original image, the recording cycle of the original image and the pitch P of the lenticular sheet are accurately adjusted, and the two are attached to each other, which requires an extremely high level of skill, and requires a difficult and time-consuming operation.

On the other hand, the present invention scans and exposes a lenticular recording material in which a recording layer (recording material) is integrally provided on the back surface of a lenticular sheet to record a three-dimensional image. Means for reading a plurality of original images for each original image, receiving information from an image information source such as a computer, etc., obtaining image information of the original image, dividing the original image from the original image information, and dividing the original image into lenticular images. Formation of a linear image corresponding to the sheet pitch,
After performing image processing such as determination of the recording position of the linear image (array of linear images) and the like so that the completed stereoscopic image can be viewed correctly when viewed, the image information to be recorded on the lenticular recording material is obtained. A lenticular recording material is scanned and exposed by a light beam that is modulated according to the image information and incident at an angle corresponding to the original image to be recorded, thereby recording a three-dimensional image.

That is, the first three-dimensional image recording apparatus of the present invention
In the aspect, the light beam modulated according to the image information is incident on the lenticular sheet at a predetermined angle corresponding to the original image to be recorded, and a plurality of light beam optical systems, preferably the number of the original images, The light beam is distributed to the light beam optical system for each scanning line by an optical path switching means such as a mirror, so that the light beam is incident on the lenticular sheet at a predetermined angle according to the original image to be recorded, and a linear image of a plurality of original images is formed. Are sequentially recorded at an angle corresponding to the original image by scanning exposure.

In the second embodiment of the three-dimensional image recording apparatus of the present invention, for example, three types of light beams corresponding to exposure of the R, G, and B photosensitive layers are individually split by a beam splitter such as a half mirror. A plurality of, preferably divided into the number of original images, the divided light beams are modulated according to the original images to be recorded, respectively, by a light beam optical system formed for each original image, according to the original image to be recorded A light beam is incident on the lenticular sheet at a predetermined angle, and the lenticular recording material is scanned and exposed.

In the third aspect of the three-dimensional image recording apparatus of the present invention, a light beam modulated according to image information of an original image to be recorded is incident on a lenticular sheet at an angle corresponding to the original image to be recorded. And a lenticular recording material is scanned and exposed with a light beam emitted from the light beam optical system to record a stereoscopic image.

Further, in the stereoscopic image recording apparatus according to the fourth aspect of the present invention,
The embodiment is a so-called drum scanner in which a lenticular recording material is fixed to a cylindrical drum and a main scan is performed by rotating the drum while a light beam modulated according to an image to be recorded is incident on the lenticular recording material. A plurality of lenses, preferably an original image, which refracts the light beam in the optical path of the light beam in the sub-scanning direction by a predetermined angle and causes the light to enter the lenticular recording material at an angle corresponding to the original image to be recorded. By having a plurality of combined optical path changing means, and by switching a lens of the optical path changing means for each linear image of the original image to be recorded, a light beam is incident on the lenticular sheet at a predetermined angle according to the original image, and By relatively sub-scanning the beam and the drum, a stereoscopic image is recorded on the lenticular recording material by scanning exposure.

According to the present invention, since an image can be directly recorded on a lenticular recording material having a recording layer on the back surface of a lenticular sheet, a linear image of an original image is recorded on the recording material and then recorded. Eliminates the need for skilled, labor- and time-consuming work of aligning and bonding the material and lenticular sheet with high precision, and recording stereoscopic images with extremely high efficiency compared to conventional scanning exposure stereoscopic image recording devices. It can be performed.

In addition, since the original image is read photoelectrically and the lenticular recording material is scanned and exposed by a light beam modulated according to the image information to record a three-dimensional image, electrical image information processing and simple image processing can be performed. By adjusting the optical system, it is possible to easily change and adjust the image recording area and the image density, and adjust the incident angle of the light beam and the number of times of recording the linear image at the same pitch. Therefore, it is possible to easily cope with an increase / decrease in the number of original images, a change in specifications of a lenticular sheet, a change in magnification of a recorded image, image processing such as shading, a change in the size of a recorded image, adjustment of a color balance and a density balance, and the like.

Therefore, according to the present invention, a high-quality stereoscopic image obtained by performing various kinds of image processing in accordance with the specifications of the lenticular sheet and the size of the recorded image and the like with extremely good workability can be obtained with a high degree of freedom. Can be recorded.

[0035]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a stereoscopic image recording method and apparatus of the present invention will be described in detail based on preferred embodiments shown in the accompanying drawings.

FIG. 1 conceptually shows an example of a first embodiment of a three-dimensional image recording apparatus of the present invention for implementing the three-dimensional image recording method of the present invention. The stereoscopic image recording device shown in FIG.
The recording device 10 reads a plurality of original images obtained from different viewpoints with a compound-eye camera or the like, and records a stereoscopic image on the lenticular recording material F. Note that the following description is made for a case where two original images a and b are read and a stereoscopic image is recorded, but the present invention is not limited to this.

The lenticular recording material F has a predetermined curvature (for example, a cylindrical surface, a parabolic surface, etc.) on the surface side on which the light beam enters, and a lenticular lens in which a number of lenticular lenses having refractive power are arranged only in the direction having the curvature. The recording layer D having the base layer H is formed on the back surface of the sheet C (or a recording material is attached) (see FIG. 3). The recording apparatus of the present invention uses a light beam modulated according to the image information of the original image, a lenticular sheet C set for each original image according to the shooting conditions of the original image, the curvature of the lenticular sheet C, and the like. (Hereinafter, the angle of incidence of the light beam indicates the direction of curvature of the lenticular sheet C), and a three-dimensional image is recorded by so-called scanning exposure.

In such a recording apparatus 10, basically, the original images a and b are photoelectrically read by the image processing means 12 to perform image processing, and the completed three-dimensional image is viewed from the front side of the lenticular recording material F. When the light beam L is output as image information that can be viewed correctly, the light beam L modulated based on the image information from the image processing means 12 is deflected in the main scanning direction (perpendicular to the plane of FIG. 1), and is substantially orthogonal to the main scanning direction. The lenticular recording material F is conveyed in the sub-scanning direction (the direction of the arrow y in the drawing), whereby the lenticular recording material F is two-dimensionally scanned and exposed by the light beam L to record a stereoscopic image.

The image processing means 12 includes a reading device 18 for reading the original images a and b, and a line for processing the image information read by the reading device 18 into image information of a linear image to be recorded on the lenticular recording material F. And an image processing apparatus 20.

The reading device 18 photoelectrically reads the original images a and b by solid-state imaging means such as a CCD camera, a CCD sensor, and an image scanner, and obtains color image information (for example, three primary colors of R, G, and B) of each original image. Is transferred to the linear image processing apparatus 20. The original image (image information) is not limited to a color image, but may be a monochrome image, and is not limited to a general photographic image, and may be a medical photograph such as an X-ray photograph or a fundus photograph. It may be. Further, the transferred image information may be any of digital information and analog information. In addition,
As will be described later in detail, the read image information is a linear image to be subsequently recorded on the lenticular recording material F. Accordingly, one line of image information read by the reading device 18 is
The linear image processing may be performed in accordance with the linear image to eliminate the need for the linear image processing device 20 to form a linear image.

The reading device 18 used in the present invention is not particularly limited, and a device for scanning and reading an original image by slit scanning, raster scanning, a drum scanner, or the like using the above-mentioned CCD sensor or the like, or a photographic type. Any of various known image reading apparatuses such as a one-shot reading apparatus can be used. In addition, a plurality of reading devices 18 preferably having the number of original images may be provided, and a plurality of original images may be read at one time. Alternatively, the original images may be sequentially read by one reading device 18. Is also good.

In the recording apparatus 10 of the illustrated example, a display is provided on a reading device 18 using a digitizer,
The main subject of each original image may be set by means such as designation with a mouse or the like. The main subject setting means is not limited to being arranged in the reading device 18 and may be arranged in a linear image processing device 20 described later, or may be arranged in accordance with the read image information. Alternatively, the main subject may be set by automatically judging by the linear image processing device 18.

Original image a read by reading device 18
And the image information of b are transferred to the linear image processing device 20. The linear image processing device 20 divides the image information of the original images a and b for each original image to form a linear image to be recorded on the lenticular recording material F (electrical formation of the linear image), The recording position of the linear image of each original image on the lenticular recording material F is set (array of linear images) so that the completed stereoscopic image can be correctly viewed when viewed from the front side of the lenticular recording material F. The image information such as the adjustment of the density and color balance and the sharpness is performed in accordance with the image information, and the image information of the stereoscopic image recording is transferred to the image forming apparatus 14.

In the linear image processing apparatus 20, first,
Based on the image information of the original images a and b sent from the reading device 18, it is determined whether various types of image processing, that is, various corrections such as color balance, density balance, sharpness, outline enhancement, and image processing are necessary or unnecessary. These image processes are performed as necessary. Note that these corrections and image processing may be performed by an operator in response to the input, or may be performed by using both automatic determination of the apparatus and input by the operator.

Next, based on the image information of the original images a and b sent from the reading device 18, the original image is divided and a linear image to be recorded is electrically formed for each original image. As described above, in optical stereoscopic image recording in which the projection light of an original image is printed on a recording layer of a (lenticular) recording material, the projection light of each original image is projected through a projection lens, and each original image is projected by a lenticular sheet C. Is decomposed into a linear image and recorded on the recording layer (see FIG. 12).

On the other hand, the recording apparatus 10 of the present invention photoelectrically reads an original image and records a three-dimensional image by scanning exposure. By the image information processing by the processing, a linear image to be recorded on the recording layer D in a state in which the original image is divided according to the specification of the stereoscopic image to be recorded and the lenticular sheet C is formed. Normally, the image information obtained by the reading device 18 is transferred to the linear image processing device 20 as line image information corresponding to one line (one scan) read by the reading device 18, and therefore, should be recorded as a line read by the reading device 18. When the linear image corresponds to the linear image to be recorded on the recording layer D, the image information from the reading device 18 or the line image information is synthesized (or divided) as necessary. As shown in FIG. 2, for example, linear images a ₁ , a ₂ , a ₃ , a ₄ .
..., linear images b ₁ , b ₂ , b ₃ , b ₄ from the original image b
For example, a linear image in which each original image is divided is formed.

The linear image is formed (division of the original image) by the resolution of the reading device 18 (the number of scanning lines to be read), the pitch P of the lenticular sheet C, the number of pitches of the lenticular sheet C, the recording magnification of the stereoscopic image (or the original image). The recording condition of the original image and the recording condition of the stereoscopic image by the reading device 18 such as the recording size with respect to the image size), the spot diameter of the light beam L incident on the lenticular recording material F (effective writing spot diameter), the number of original images, etc. What is necessary is just to perform suitably.

The recording conditions of the three-dimensional image, that is, the specifications of the lenticular sheet C such as the pitch P, the size of the three-dimensional image to be recorded, the recording magnification of the three-dimensional image, and other various recording conditions of the three-dimensional image are input in advance by the operator. Alternatively, it may be automatically set by pre-scanning (pre-reading) the original image, selecting the lenticular recording material F to be used, or the like. Alternatively, the recording conditions may be set by using both of them.

However, as described above, the reading of the image information by the reading device 18 is performed in accordance with this linear image.
Preferably, “the number of scanning lines read = the total number of lenticular lenses”
If so, the formation of a linear image in this linear image processing apparatus may be omitted.

The linear image information of each original image formed in this way is then transferred to the arraying device 24, where the completed stereoscopic image is displayed as an image that can be correctly viewed when viewed from the front side of the lenticular recording material F. The arrangement, that is, the recording position of each linear image is determined. In the example shown,
Since a stereoscopic image is recorded using the original images a and b, corresponding portions of the linear images of the original images arranged within the pitch P of the lenticular sheet C are combined to form a ₁ as shown in FIG. , B ₁ , a ₂ , b ₂ , a ₃ ... Are sequentially arranged as linear images of the original images.

The order of arrangement of the linear images of the original images is determined according to the order of recording (photographing) parallax of the original images. For example, the photographing position is changed from left to right to original images a → b.
When the linear image is recorded, as shown in FIG. 3, when the lenticular recording material F is exposed (the same state as when viewing), the linear image is recorded from left to right in the order of the original image a → b. The linear images are sequentially arranged.

The arrangement of the linear images is based on the set main subject (for example, reference numeral 28 in FIG. 2) and the three-dimensional image finally formed on the recording layer D according to the front and back of the original image. When the image is viewed through the lenticular sheet C, it is needless to say that the image is formed so as to be a suitable stereoscopic image.

The linear images of the original images arranged in a predetermined order are then divided into the number of linear images formed (or the number of read scanning lines), the pitch P of the lenticular sheet C, the recording magnification (or the original image and the This may be set depending on the size of the recorded image), the recording specifications such as the total number of lenticular lenses and the number of repetitive recordings of the linear image are set according to the number of original images, the beam spot system of the light beam L, and the like. The image information is processed according to these and transferred to the image forming apparatus 14.

In the recording apparatus 10 of the present invention, such a linear image processing apparatus 20 is not limited to being provided only in the recording apparatus 10; for example, one linear image processing apparatus is provided for each original image. There may be more than one, such as one each. Further, the processed image information may be stored in a memory (line memory) for each original image, and transferred to the image forming apparatus from here.

The linear image information transferred from the linear image processing device 20 is supplied to the exposure control circuit 30 of the light beam emitting means 22.
Is forwarded to The exposure control circuit 30 outputs the linear image information from the linear image processing device 20, that is, the R (red) signal,
(Green) signal and B (Blue) signal information are received, D / A conversion, various exposure corrections and signal processing are performed in accordance with the image information signal, and one line of each pixel for each color is performed for each color. The exposure amount is calculated, and each light source 32 (32R,
32G, 32B), the exposure amount (modulation amount) of each pixel for one line is determined, and the image information signal is transferred to the nonlinear amplifier 35.

The non-linear amplifier 35 is mainly for compensating for the non-linearity of the AOM (acoustic optical modulator) 39, and the image information signal corrected by the non-linear amplifier 35 is AO
The data is transferred to the drive circuit 37 (37R, 37G, 37B) of the M39, and the AOM 39 (39R, 39G, 39B) is driven.

On the other hand, the light source 32 is a photosensitive layer provided on the recording layer D of the lenticular recording material F, for example, a red (R)
A light beam light source for emitting light of a narrow band wavelength for exposing the photosensitive layer, the green (G) photosensitive layer, and the blue (B) photosensitive layer, wherein the light source 32R is a light for exposing the R photosensitive layer of the lenticular recording material F. the beam L _R, the light source 32G is a light beam L _G for exposing the same G photosensitive layer, the light source 32B is a light beam L _B for exposing the same B photosensitive layer, is injected at a constant output, respectively.

The light source of the light beam used in the present invention is not particularly limited, and may be any of various gas beam light sources such as a He—Ne laser gas laser, various solid-state lasers, semiconductor lasers, and LEDs. It may be appropriately selected according to the recording layer D of the lenticular recording material F and the like. For example,
When the recording layer D of the lenticular recording material F has a spectral sensitivity in the visible light region, He-Ne corresponding to the R photosensitive layer is used.
A laser, an Ar laser corresponding to the G photosensitive layer, and a He-Cd laser corresponding to the B photosensitive layer are suitably used as a light source, and a semiconductor laser (LD) when the recording layer is a color false photosensitive material. And the like are suitably used as a light source. Further, a light valve or the like may be used.

Light beams L _R and L _G emitted from each light source
The light beam diameter and the like of L and L _B are adjusted by light beam shaping means 40 (40R, 40G, 40B) such as a beam expander and a collimator lens arranged corresponding to each.

Each light beam passing through the shaping means 40 is converted into a corresponding AOM 39 (39R, 39G, 39A).
B). Here, since each AOM 39 is driven according to the image (linear image) to be recorded as described above, each light beam incident on the corresponding AOM 39 has an intensity corresponding to the image to be recorded. Modulated. The optical modulator used in the recording apparatus 10 of the present invention is not limited to the AOM 39 in the illustrated example, and any of various optical modulators such as a magneto-optical modulator and an electro-optical modulator can be applied.

[0061] emitted from the light source 32, the light beams L _R modulated by AOM39, L _G, and L _B is a single light by dichroic mirrors 42, 44, and multiplexing optical system composed of mirrors 46 The beam is combined with the beam L. A plurality of light beams are multiplexed into one light beam by a multiplexing optical system, whereby the lenticular recording material F
Is scanned and exposed, so that a light beam optical system
Is simple, the position of incidence of each light beam on the recording material can be adjusted easily and with high accuracy, there is no color shift or image flickering, and good stereoscopic vision can be obtained. It is possible to record a stereoscopic image of high quality.

In the multiplexing optical system shown in the figure, the dichroic mirror 42 has a characteristic of transmitting a light beam having the wavelength of the light beam _LR and reflecting the other light beams.
4 Other reflects the light beam of the wavelength of the light beam L _G are those having a characteristic of transmitting the light beam L _B is mirror 4
6 is reflected to, dichroic by being reflected on the dichroic mirror 42 passes through the dichroic mirror 44, the light beam L _G is by being reflected on the dichroic mirror 44 and the dichroic mirror 42, further light beam L _R dichroic mirror 42 , The three light beams are combined into one light beam L.

The present invention is not limited to a so-called multiplex type optical system for recording an image by multiplexing a plurality of light beams as shown in the example shown in FIG. Travel at different angles, form images at different positions on the same scanning line on the lenticular recording material F, and sequentially scan the scanning lines at time intervals, or A non-multiplexing type optical system that is incident on one point may be used.

The light beam L thus combined is:
The light is deflected in the main scanning direction by the light beam optical systems 24a and 24b, is incident on the lenticular recording material F conveyed in the sub-scanning direction at a predetermined angle, and is subjected to scanning exposure. Further, between the light beam emitting means 22 and the light beam optical system 24 in the light path of the light beam L, a turning mirror 50 as an optical path switching means is arranged.

In the recording apparatus 10 shown in FIG.
linear image a of a₁ , A_Two , A_Three , A _Four Light to record ......
Beam optical system 24a and linear image b of original image b₁ , B
_Two , B _Three , B_Four A light beam optical system 24b for recording...
And the light beam optical system 24a has a linear image a₁ , A_Two …
.. Are modulated at a predetermined angle.
Into the optical sheet C, while the light beam optical system
24b is a linear image b of the original image b₁ , B_Two …… and so on
The modulated light beam Lb is lenticular at a predetermined angle.
To the port C.

The light beam optical system 24a basically includes a mirror 52a, a polygon mirror 54a, and an fθ lens 5a.
6a. The light beam La emitted from the light beam emitting means 22 and reflected by the rotating mirror 50
Is first reflected in a predetermined direction by a mirror 52a, enters a polygon mirror 54a which is an optical deflector,
It is deflected in the main scanning direction (perpendicular to the plane of FIG. 1).

The optical deflector used in the recording apparatus of the present invention is not limited to the polygon mirror shown in the drawing, and any of various known optical deflectors such as a galvanometer mirror and a resonant scanner may be used. If necessary, a polygon mirror 54 such as a cylindrical lens or a cylindrical mirror may be interposed between the polygon mirror 54a (optical deflector).
Needless to say, the surface tilt correction optical system a may be arranged.

The light beam La deflected in the main scanning direction is
The lens is adjusted by the fθ lens 56a so as to form an image at a predetermined position on the lenticular recording material F (recording layer D) with a predetermined beam diameter, and is incident on the lenticular sheet C at a predetermined angle corresponding to the original image a.

On the other hand, the light beam optical system 24b corresponding to the light beam Lb is similarly provided with a mirror 52b and a polygon mirror 5b.
4b and an fθ lens 56b, and an original image b
The light beam Lb modulated according to the linear image of
Is incident on the lenticular sheet C at a predetermined angle according to.

The rotating mirror 50 is rotated to a position shown by a solid line and a position shown by a dotted line in FIG. 1 by various known means, and converts the light beams La and Lb into the corresponding light beam optical system 24a. And 24b. The recording apparatus 10 according to the first embodiment of the present invention includes a light beam L
a and Lb corresponding to each of the light beam optical systems 24
a ₁ , b ₁ , and a ₂ by distributing the light beams La and Lb to the corresponding optical systems for each scan (recording of one linear image) by the rotating mirror 50. , B ₂ , a ₃ ... and the original image a
And the linear images of b are sequentially recorded in turn, and a stereoscopic image is recorded.

As described above, the linear image information of both original images
Is a in the linear image processing device 20₁ , B ₁ , A_Two , B_Two ,
a_Three , B_Three , A_Four , B_Four ………, arranged in sequence
Is transferred to the system injection means 22. The light beam emitting means 22
Transferred image information, for example, initially a linear image a₁ According to
The modulated light beam is emitted from each LD 32 and multiplexed.
As a result, the light beam La enters the rotating mirror 50. here
When the light beam La enters, the rotating mirror 50
Since it is located at the position shown by the solid line in FIG.
The beam La enters the light beam optical system 24a, and the original image a
Incident on the lenticular sheet C at an angle corresponding to
Linear image a₁ Is exposed by scanning.

When the recording of the linear image a ₁ is completed, a light beam Lb modulated according to the linear image b ₁ is emitted from the light beam emitting means 22 in the same manner. The mirror 50 is rotated and disposed at the position shown by the dotted line in FIG.
Incident to 4b, to scanning exposure with a linear image b ₁ on the recording layer D is incident on the lenticular sheet C at an angle corresponding to the original image b.

The linear image b₁ When the recording of the
The rotary 50 is again rotated to the solid line position, and
Statue a_Two Are scanned and exposed, and b_Two , A_Three , B
_Three , A _Four , B_Four ... and a linear image of the original image a and the original image b
Are alternately scanned and exposed in a predetermined order.

Here, the lenticular recording material F is substantially perpendicular to the main scanning direction by a sub-scanning conveyance means (not shown) in a state where the generatrix direction of the lenticular sheet C (the longitudinal direction of the lenticular lens) and the main scanning direction are substantially coincident. In the sub-scanning direction (direction of arrow y). Accordingly, the light beams La and Lb deflected in the main scanning direction can consequently two-dimensionally scan and expose the lenticular recording material F, and as shown in FIG. 20, linear images a ₁ , b ₁ , a ₂ , b ₂ , a _{3 of} the respective original images in accordance with the recording position determined by step 20.
Are recorded at predetermined positions in a so-called line sequence.

The sub-scanning and conveying means for the lenticular recording material F is not particularly limited, and may be a method using two pairs of nip rollers arranged with the scanning line interposed therebetween, or an exposure drum supporting the lenticular recording material F and arranged with the scanning line interposed therebetween. Known methods, such as a method using two nip rollers for pressing the exposure drum, a method using an exposure table that moves a lenticular recording material F at a predetermined position by suction or the like and moves by a screw transmission device, or a method using a belt conveyor. Any of the various sheet conveying means may be a method.

The rotating mirror 50 may have a reflecting surface on both sides and rotate 90 °, or may have an anti-sloping surface on only one side and rotate 180 °.
The driving method of the rotating mirror 50 is not particularly limited.
Various known methods may be used.

The optical path switching means is not limited to the rotating mirror 50 in the illustrated example, and various known light beam optical path changing means such as a prism can be applied.

In the example shown in FIG. 1, the light beam emitted from the light beam
Although the light beam was deflected in the main scanning direction at 4a or 54b, the present invention is not limited to this. An optical deflector such as a polygon mirror is arranged in the light beam emitting means 22, and the light beam is demultiplexed by the multiplexing optical system. The combined light beam is then deflected in the main scanning direction by an optical deflector, emitted from a light beam emitting unit, and then distributed to each light beam optical system by an optical path switching unit such as a rotating mirror 50. You may.

The recording device 10 shown in FIG.
Although the light beam is modulated by an optical modulator such as the light modulator 9, the present invention is not limited to this, and the light emission of the light source 32 may be modulated by pulse width modulation. May be electrically modulated. FIG. 4 shows an example of a (stereoscopic image) recording apparatus using such pulse width modulation. Note that in the example shown in FIG.
The recording apparatus 10 has basically the same configuration except that the method of light beam modulation is different from that of the recording apparatus 10. Therefore, the same members are denoted by the same reference numerals, and detailed description thereof will be omitted.

In the recording apparatus shown in FIG. 4, the information of the original image is transferred to the light beam emitting means 23, and similarly, for each light source 32 (32R, 32G, 32B), the exposure amount of each pixel for one line is equal to the exposure amount. It is determined by the control circuit 30. Next, the signal of the exposure amount is transferred to the modulation circuit 36. The modulation circuit 36 (36R, 36G, 36B) modulates the pulse width of the light emitted from the light source 32 in a predetermined repetition cycle, for example, one pixel cycle. In the pulse width modulation in this image exposure method, the light output of the light source 32, which is the light source, is set to be constant, and the time during which the light source 32 continuously emits light within one pixel cycle, ie, one time (one pixel) The continuous exposure time is output to the drive circuit 34, respectively.

Drive circuit 38 (38R, 38G, 38B)
Is a driving circuit for driving the light source 32. In the case of pulse width modulation, the driving circuit
A driving current corresponding to a light output preset for each light source is supplied to the light source 32. As a result, the light source 32 emits light with a light output preset for each light source for a time determined for each light source according to the i-pixel. This is performed over one line, and the light source 32 performs one-line exposure.

Each light beam L _R emitted from the light source 32,
L _G, and L _B are shaping means 40 which are arranged corresponding to each (40R, 40G, 40B) is shaped by, then the light beam multiplexing of one by later-described light beam combining system, similar The lenticular recording material F is exposed by scanning.

FIG. 5 conceptually shows an example of a second embodiment of the three-dimensional image recording apparatus of the present invention for implementing the three-dimensional image recording method of the present invention. The stereoscopic image recording device (hereinafter, referred to as a recording device) 70 according to the second embodiment of the present invention includes a light beam corresponding to exposure of each photosensitive layer of the lenticular recording material F, for example, each of the R, G, and B photosensitive layers. L _R , L _G , and L _B are divided into a plurality of, preferably the number of original images, and an original to be recorded is provided by a light beam optical system provided for each of the divided light beams (preferably corresponding to each original image). The light is modulated individually in accordance with the image, is incident on the lenticular sheet C at a predetermined angle, and simultaneously records linear images of a plurality of original images. In addition,
In the recording apparatus 70 shown in FIG. 5, the same members as those in the first embodiment of the recording apparatus of the present invention are denoted by the same reference numerals, and detailed description thereof will be omitted.

The recording device 70 reads the original image, processes the image, and modulates the light beam according to the image information in the main scanning direction (corresponding to the generatrix direction of the lenticular sheet C), similarly to the recording device 10 described above. 5 is deflected in the direction perpendicular to the plane of FIG. 5, while the sub-scanning direction (FIG.
Lenticular recording material F conveyed in the direction of arrow y)
A three-dimensional image is recorded by scanning in a three-dimensional manner.

The recording apparatus 70 basically includes an image processing unit 12 for reading the original images a and b and processing the image information to be recorded, and a light beam source 32 (32R, 32R).
32G, 32B) and a half mirror 7 as a beam splitter for splitting a light beam emitted from each light source 32
6 (76R, 76G, 76B) and light beam modulating means 77a corresponding to the original image a for modulating the light beam split by the half mirror 76 according to the original image to be recorded (the linear image thereof) and the original image b, and a light beam corresponding to the original image a, which deflects the light beam emitted from each light beam modulation means in the main scanning direction and enters the lenticular sheet C at a predetermined angle. Optical system 78a and light beam optical system 7 corresponding to original image b
8b and a lenticular recording material F conveying means.

In the recording device 70, the original images a and b
Is read by the reading device 18 of the image processing means 12 similarly to the recording device 10 described above, and the image information is transferred to the linear image processing device 72. In this case, the setting of the main subject may be performed in the same manner as described above. First, the linear image processing device 72 is similar to the linear image processing device described above.
From the image information of the original images a and b read by the reading device 18, a linear image to be recorded on the lenticular recording material F is formed.

The linear images formed for each of the original images are then recorded on the lenticular recording material F so that the completed stereoscopic image is correctly viewed when viewed from the front side of the lenticular recording material F. Is determined as shown in FIG. Here, the recording device 70 according to the second embodiment of the present invention includes a light beam modulating means 77a and a light beam modulating means 77b, a light beam optical system 78a and a light beam optical Since the recording of the linear image of each original image is performed separately by the system corresponding to each original image, the linear images of the original images a and b are provided as in the first embodiment described above. To a ₁ , b ₁ , a ₂ , b ₂ , a ₃ ...
And the linear image of the original image a is a ₁ , a
₂ , a ₃ , a ₄ ..., The linear image of the original image b is b ₁ , b
₂ , b ₃ , b ₄ ... Are arranged separately.

The linear image information of each of the original images arranged in a predetermined order is then processed according to the pitch P of the lenticular sheet C, the image recording magnification, the image size, etc. It is processed into image information to be recorded on the lenticular recording material F. The (linear) image information of each original image processed in this manner is supplied to the corresponding light beam emitting device, that is, the image information Sa of the original image a is transmitted to the exposure control circuit 30a of the light beam emitting device 77a. On the other hand, the image information Sb of the original image b is sent to the exposure control circuit 30b of the light beam emitting device 77b. Here, in the recording device 70 according to the second aspect of the present invention, the linear images of the original images a and b are simultaneously recorded by the light beam modulating means 77a and 77b and the light beam optical systems 78a and 78b. In the case where image information of images recorded simultaneously, for example, light beams (La and Lb) corresponding to both original images are incident on the same lenticular lens of the lenticular sheet C as in the recording device 70 of FIG. , Image information of the linear images a ₁ and b ₁ shown in FIG. 3,
Image information of the same a ₂ and b _2, etc. are sent to each of the exposure control circuit 30 at the same time.

In the light beam modulating means 77a and 77b, the exposure control circuit 30a
And 30b determine the exposure amount (modulation amount), and then convert the image information signal to nonlinear amplifiers 35a and 35b.
Is corrected so as to compensate for the nonlinearity of the AOM (acoustic optical modulator) 39, and the driving circuit 37 (37a) of the AOM 39 is corrected.
R, 37aG, 37aB and 37bR, 37bG, 3
7bB) and transferred to AOM39 (39aR, 39a
G, 39aB and 39bR, 39bG, 39bB) are driven.

On the other hand, the light sources 32 (32R, 3
2G, 32B), like the recording apparatus 10 described above, photosensitive layers provided on the recording layer D of the lenticular recording material F, for example, a red (R) photosensitive layer, a green (G) photosensitive layer, and a blue (B) photosensitive layer. an optical beam source for emitting a light of narrow wavelength which is sensitive to the light beam L _R light source 32R is for exposing the R sensitive layer in the lenticular recording material F, the light source 3
2G is a light beam L _G for exposing the same G photosensitive layer, the light source 32
B is a light beam L _B for exposing the same B photosensitive layer, is injected at a constant output, respectively.

Each light beam L _R emitted from the light source 32,
L _G, and L _B is a collimator lens and a beam Expander such shaping means arranged corresponding to the respective 82
(82R, 82G, 82B), the beam is shaped into parallel light, and is incident on a half mirror 76 as a beam splitter. The light source used in the second embodiment of the present invention is not particularly limited, and may be a gas laser such as a He-Ne laser, various solid-state lasers, a semiconductor laser, an LED, or any of various light beam light sources. It may be appropriately selected according to the recording layer D of the lenticular recording material F or the like.

The half mirror 76 (76R, 76G, 76
B) shows the light beams L _R , L _G ,
And L _B are respectively divided into light beams corresponding to the respective exposures of the original images a and b. That is, the half mirror 76R is divided into two by reflecting half passes through half the light beam L _R, the light beam corresponding to the recording light beam La _R and the original image b corresponding to the recording of the original image a the Lb _R, in the same manner, the half mirror 76G the light beam by dividing the L _G, light beam corresponding to the recording light beam La _G and the original image b corresponding to the recording of the original image a Lb
To _G, the half mirror 76B splits the light beam L _B,
The light beam Lb _B corresponding to the recording light beam La _B and the original image b corresponding to the recording of the original image a, divides each.

In the recording device 70 shown in the figure, the light beam La _R corresponding to the original image a among the divided light beams,
La _G and La _B are AOMs (acoustic engineering modulators) 39aR, 3 corresponding to the respective light beam modulating means 77a.
9aG and 39aB directly, while the light beam L
b _R , Lb _G and Lb _B are reflected in a predetermined direction by mirrors 82R, 82G and 82B provided corresponding to each other, and the corresponding AOM 39b
R, 39bG and 39bB.

Since each AOM 39 is driven according to the image recorded by each light beam as described above, the light beam L passing through the corresponding AOM 39 has an intensity corresponding to the image to be recorded. Is modulated. As in the case of the recording apparatus 10 described above, the optical modulator to be used is not limited to the AOM 39 in the illustrated example, and any of various optical modulators such as a magneto-optical modulator and an electrical engineering modulator can be applied. .

Each light beam modulated according to the image to be recorded by the AOM 39 is similar to the recording device 10 described above.
In the light beam modulating means 77a, a multiplexing optical system composed of a mirror 46a and half mirrors 42a and 44a, and in the light beam modulating means 77b, a multiplexing optical system composed of a mirror 46b and half mirrors 42b and 44b. The light beams are multiplexed by the system and are respectively a light beam La for recording an image of the original image a and a light beam Lb for recording an image of the original image b.

The light beams La and Lb are deflected in the corresponding light beam optical systems 78a and 78b in the main scanning direction (perpendicular to the plane of FIG. 5) by polygon mirrors 54a and 54b, which are optical deflectors. 84a and 84b, the incident angle to the lenticular sheet C is reflected in a direction in which the angle becomes a predetermined angle corresponding to the original image to be recorded, and the fθ lenses 56a and 56b set a predetermined position on the lenticular recording material F (recording layer D). The lenticular recording material F is scanned and exposed so as to form an image with a beam diameter of

Here, the lenticular recording material F is conveyed in the sub-scanning direction (y direction in FIG. 5) substantially perpendicular to the main scanning direction by the conveying means in the same manner as in the above-described recording apparatus 10, so that the light beam La And Lb consequently two-dimensionally scan the lenticular recording material F, and the linear images of the original images a and b are recorded at corresponding positions as shown in FIG. As described above, the recording device 70 of the illustrated example simultaneously records the linear images of the original images a and b by the light beam La and the light beam Lb, and both light beams enter the same lenticular lens of the lenticular sheet C. I do. Therefore, the linear images a ₁ and b ₁ shown in FIG.
₂ and b ₂ ... Are recorded simultaneously.

FIG. 6 conceptually shows an example of a third embodiment of the three-dimensional image recording apparatus of the present invention for implementing the three-dimensional image recording method of the present invention. A three-dimensional image recording apparatus (hereinafter, referred to as a recording apparatus) 90 according to a third embodiment of the present invention is an image combining a light beam emitting unit and a light beam optical system corresponding to an original image to be recorded (the linear image thereof). It has a plurality of forming means, preferably the number of original images, and records a linear image of the plural original images simultaneously to record a stereoscopic image. In the recording device 90 shown in FIG. 6, the same members as those of the recording devices of the first and second aspects of the present invention are denoted by the same reference numerals, and detailed description thereof will be omitted.

The recording device 90 shown in FIG. 6 reads an original image, processes the image, and modulates a light beam modulated according to the image information in a lenticular sheet, similarly to the recording devices of the first and second embodiments. The lenticular recording material F that is deflected in the main scanning direction (the direction perpendicular to the paper surface of FIG. 6) coinciding with the generatrix direction of C and conveyed in the sub-scanning direction (the direction of the arrow y in FIG. 6) substantially perpendicular to the main scanning direction A three-dimensional image is recorded by scanning two-dimensionally.

The recording apparatus 90 basically includes an image processing means 12 for reading the original images a and b and processing them into image information to be recorded, and a modulation means corresponding to the recorded image corresponding to the original image a. Light beam emitting means 22a for emitting the light beam La thus emitted, and a light beam optical system for deflecting the light beam La emitted from the light beam emitting means 22a in the main scanning direction and entering the lenticular recording material F at a predetermined angle 7
Similarly, the light beam emitting means 22b corresponding to the original image b, and the light beam optical system 7
Forming means having a lenticular recording material F
And transport means for transporting in the sub-scanning direction.

In the recording device 90, each original image is read by the reading device 1 of the image processing means 12 in the same manner as the recording device 70 described above.
8, the image information is transferred to the linear image processing device 72 for image processing, and the linear image of the original image a is a ₁ ,
a ₂ , a ₃ , a ₄ ..., the linear image of the original image b is b ₁ ,
b ₂ , b ₃ , b ₄ ... are separately arranged.

The (linear) image information of each original image processed as described above is stored in the corresponding light beam emitting device, that is, the image information Sa of the original image a is sent to the light beam emitting device 22a, and The image information Sb of the original image b is sent to the light beam emitting device 22b.

The light beam emitting devices 22a and 22b are
It has a configuration similar to that of the light beam emitting device 22 provided in the recording device 10 shown in FIG. 1 described above, and outputs R and R emitted from the light source 32 in accordance with the transferred image information.
A light beam corresponding to exposure of each photosensitive layer of G and B is A
The light is modulated by the OM 39, and multiplexed into one light beam by the multiplexing optical system formed by the dichroic mirrors 42 and 44 and the mirror 46 to form light beams La and Lb, respectively.

The light beams La and Lb emitted from the light beam emitting devices 22a and 22b enter the corresponding light beam optical systems 78a and 78b and are deflected in the main scanning direction by the polygon mirrors 54a and 54b. 84a and 84b, are adjusted in a predetermined direction by fθ lenses 56a and 56b, are adjusted so as to form an image at a predetermined position by a predetermined beam system, and are incident on a lenticular sheet C at a predetermined angle to be a lenticular recording material F. Is exposed by scanning.

The recording apparatus 90 according to the third embodiment of the present invention
Similarly, the linear images of the original images a and b are simultaneously recorded in the same manner as in the recording device 70 of the second embodiment, and the light beams La and Lb are incident on the same lenticular lens of the lenticular sheet C. The linear image a ₁
And image information of b _1, the image information of the same a ₂ and b ₂ are sent to each of the exposure control circuit 30 at the same time, also, the linear images a ₁ and b _1, the a ₂ and b ₂ ......... etc. Are recorded simultaneously.

The recording apparatus 90 of the illustrated example modulates a light beam by using an optical modulator such as the AOM 39 similarly to the recording apparatus 10 shown in FIG.
In the recording apparatus 90 of the aspect, the stereoscopic image may be recorded by pulse width modulation for modulating the light emission pulse of the light source, similarly to the recording apparatus shown in FIG.

The first to third aspects of the recording apparatus of the present invention as described above.
In the aspect, the light beam modulated according to the linear image to be recorded is incident on the lenticular sheet C at a predetermined angle set for each original image, and the linear image is recorded. The angle of incidence of the light beam L for recording the linear image of the original image on the lenticular sheet C is determined by taking into account the curvature of the lenticular lens, one pitch P of the lenticular sheet, the number of original images, and the like, and the viewing conditions of the completed stereoscopic image. Assuming that lenticular recording material F (lenticular sheet C)
Is determined as appropriate according to the specifications of the camera and the shooting conditions of the original image.
In any case, it is preferable that the light beam is configured to pass through the center of curvature of the lenticular lens constituting the lenticular sheet.

A plurality of light beams L for recording a linear image of each original image (for example, the light beams La and L
b) is not limited to being incident on the same pitch (lenticular lens) of the lenticular recording material, but may be incident on the next pitch, or one or two pitches apart.

In the recording apparatus according to the first to third aspects of the present invention, the positions and angles of various optical members such as mirrors, polygon mirrors, fθ lenses and the like arranged in the light beam optical system are determined. It is configured to be adjustable so that the optical path length of the light beam, the incident angle and position of the light beam on the lenticular sheet C, and the like can be adjusted to change the specifications of the lenticular sheet C such as pitch P and curvature, increase and decrease the number of original images, The configuration may be such that the number of scans within the same pitch P can be increased or decreased, and the recording position and recording interval of a linear image can be adjusted.

In each of the above embodiments, the lenticular recording material F is conveyed in the sub-scanning direction, so that the light beam deflected in the main scanning direction scans the lenticular recording material F two-dimensionally. Is not limited to this. By moving the light beam emitting device 22 or the like in the sub-scanning direction, the light beam deflected in the main scanning direction and the lenticular recording material F are relatively moved, and the light beam L
May scan the lenticular recording material F two-dimensionally.

The main scanning direction and the lenticular sheet C
The generatrix direction does not necessarily need to coincide, and it goes without saying that image recording may be performed by making the sub-scanning direction coincide with the generatrix direction, but image processing is relatively easy.
In view of the fact that one linear image can be continuously recorded, it is advantageous to make the main scanning direction coincide with the generatrix direction as in the illustrated example, and high-quality stereoscopic image recording can be expected.

As described above, the recording apparatus 1 of the present invention described above
0, 70, and 90 deflect the light beam L in the main scanning direction, and relatively move the lenticular recording material F and the light beam in the sub-scanning direction substantially orthogonal to the main scanning direction. The image is recorded on F. Also,
The lenticular sheet C is in a state where the generatrix direction and the main scanning direction substantially match. Therefore, when the lenticular recording material F is continuously conveyed, the scanning line SL defined by the light beam L is eventually inclined with respect to the generatrix of the lenticular sheet C.

In the case of a normal image recording apparatus, the deviation of the scanning line SL does not cause a serious problem. However, in the case of recording a three-dimensional image using the lenticular sheet C as in the present invention, the scanning line SL is shifted with respect to the generating line. The displacement of the SL causes a large deterioration in image quality. In addition, when the sub-scanning speed of the lenticular recording material F is higher than the main scanning speed of the light beam L, or when the pitch P of the lenticular sheet is small, the scanning line The SL may be defined over two pitches. Therefore, the deviation angle of the scanning line SL is calculated from the relationship between the sub-scanning speed and the main scanning speed, and the light beam L
May be set at an angle θ such that the scanning line SL coincides with the generatrix direction.

As shown in FIG. 7, when the width of the lenticular recording material F in the main scanning direction is H, the sub-scanning speed is V, and the main scanning speed is v, the scanning start and end points of the light beam L are Can be expressed by the following equation: Δy = H × (V / v). Therefore, the angle θ of the scanning line SL defined is θ = Δy / H = V / v. By setting the main scanning direction x in consideration of the angle θ, the scanning line SL defined by the light beam and the generatrix of the lenticular sheet C can be substantially matched, and a good stereoscopic image is recorded. be able to. This adjustment may be performed by adjusting the angle of the lenticular recording material F.

The method of matching the scanning line SL with the generatrix of the lenticular sheet C is not limited to the above-described method. For example, the lenticular recording material F is repeatedly transported and stopped for sub-scanning transport, and the light beam The conveyance of the lenticular recording material F and the modulation of the light beam (image recording) may be controlled so that the image recording by L is performed.

In the three-dimensional image recording using the lenticular sheet C, in order to obtain a good three-dimensional image, a predetermined linear image (two linear images in the illustrated example) must be accurately set within one pitch P of the lenticular sheet C. Image) is important. Therefore, in the present invention, it is preferable to have a positioning unit for image recording of the lenticular recording material F.

The positioning means is not particularly limited, and a light emitting element and a light receiving element are formed on the lenticular recording material F by forming detecting means such as sprocket holes and notches, or by arranging a light emitting element and a light receiving element in accordance with the unevenness of the lenticular sheet. An optical method for adjusting the recording position based on a change in the amount of light caused by the detection light from the element passing therethrough, or a method for detecting the irregularities mechanically or by air or the like may be used. Alternatively, a method for detecting sprocket holes and notches formed in the lenticular recording material F by a mechanical method, or an encoder or the like disposed on a transport roller of the lenticular recording material F to detect the position of the recording material In addition, a method of performing image recording position alignment and the like are also preferably exemplified.

Such alignment of image recording may be performed only at the start of recording. Periodic or continuous detection by light detection or the like is performed, and periodic or continuous detection is performed by feeding back the detection result. The position of the image recording may be appropriately adjusted.

In the example described above, one or a plurality of reading devices 18 read a plurality of original images and record the linear images of the original images on the lenticular recording material F sequentially or simultaneously. The recording of the linear image may be performed after reading the entire original image, or the reading of the original image and the image recording may be performed in parallel.

When a linear image is recorded after reading all the original images, a memory is provided in the image processing means 12 or the image forming means 14 so that after reading the entire original image, or , The image information is stored in the memory, and the recording of the linear image is sequentially performed. In this case, the reading device 18 and the linear image processing device 20 provided in the image processing means 12 may have one or a plurality of devices.

When the reading of the original image and the recording of the linear image are performed in parallel, a plurality of reading devices 18 use one scanning line of the original images a and b or one linear image (or more). Is read, the image information is sequentially transferred to the linear image processing apparatus 20, and image processing such as formation and arrangement (determination of a recording position) of a linear image is performed, and the processing ends. The obtained image information is sequentially transferred to the image forming unit 14 (the light beam emitting unit 22 and the like). Image forming means 14 which has received the image information, records the linear images in accordance with the transmitted image _{information, a 1, b 1, a} 2, b 2 ...... and 3
As shown in (1), recording of linear images of the original images a and b is performed. That is, in this embodiment, the recording of the linear images is performed in parallel with the reading of the original images a and b with a delay of one to several scanning lines.

FIG. 8 shows a fourth embodiment of the stereoscopic image recording apparatus according to the present invention.
Is conceptually shown. In the example shown in FIG. 8, the same members as those of the above-described recording device 10 and the like are denoted by the same reference numerals, and description thereof will be omitted. The recording apparatus 100 according to a fourth embodiment of the present invention is a recording apparatus using a so-called drum scanner, which holds a cylindrical drum 102 around a lenticular recording material and performs main scanning by rotating the drum 102. In addition, the first of the present invention described above.
Of course, such a drum scanner may be used in the stereoscopic image recording apparatuses of the third to third aspects.

In the recording apparatus 100 in the illustrated example, the lenticular recording material F is wound around the drum 102 and fixed so that the generatrix direction of the lenticular sheet C coincides with the circumferential direction, and the drum 102 is moved in the circumferential direction (arrow in FIG. 8). By rotating the drum 102 in the x direction), the main scanning direction is substantially matched with the generatrix direction of the lenticular sheet C to perform the main scanning, and the drum 102 is relatively moved in the y direction in FIG. And the lenticular recording material F is irradiated with the light beam L
Enables two-dimensional scanning.

In the recording apparatus 100 shown in FIG. 8, similarly to the recording apparatus 10 shown in FIG. 1, an image processing means having a reading device 18 and a linear image processing device 20 (both not shown). 12, an original image is read, image processing such as formation of linear images and determination of a recording position of the lenticular recording material F of each linear image is performed, and a light beam emitting unit is used as a signal of linear image information to be recorded. 22. The light beam emitting means 22 is similar to the above-described example.
The three types of light beams are modulated according to the image information of the transferred linear image, and these are combined and emitted as a light beam L.

Here, the recording apparatus 1 according to the fourth embodiment of the present invention
00, the light beam emitting means 22 and the drum 102
(Lenticular recording material F), between the lenticular sheet C at an angle according to the original image to be recorded, to refract the light beam L, the optical path changing means 10 of the light beam L
4 are arranged.

FIG. 9 conceptually shows the optical path changing means 104 and its operation. The light beams La and Lb modulated according to the linear images of the original images a and b are alternately emitted from the light beam emitting means 22 as in the recording apparatus 10 of the first embodiment described above. The optical path changing unit 104 changes the optical paths of the light beams La and Lb traveling straight ahead in a predetermined direction,
The light is made to enter the lenticular sheet C at an angle corresponding to the original image to be recorded.

The optical path changing means 104 in the illustrated example has a disc-like shape obtained by combining a semicircular lens 106a corresponding to the refraction of the light beam La and a semicircular lens 106b corresponding to the refraction of the light beam Lb. It is configured to be rotatable about the rotation shaft 108 in the direction of the arrow z in FIG. 9 (or in the opposite direction). Here, the lens 106a corresponding to the light beam La has a wedge shape whose thickness gradually increases in the direction of the linear end, and refracts the light beam La in the sub-scanning direction, while the lens 106b gradually reverses in the direction of the linear end. It has a wedge shape with a reduced thickness, and refracts the light beam Lb in a direction opposite to the sub-scanning direction.

That is, in the recording apparatus 100 of the illustrated example, when recording a linear image of the original image a, the recording apparatus 100 shown in FIG.
The lens 106a of the optical path changing means 104 as shown in FIG.
Is inserted into the optical path of the light beam L, the light beam La is refracted in the sub-scanning direction, and is incident on the lenticular sheet C at a predetermined angle according to the original image a. When the recording of the linear image of the original image a is completed, the optical path changing means 104 rotates in the direction of the arrow z to insert the lens 106b into the optical path of the light beam L as shown in FIG. The beam Lb is refracted in the direction opposite to the sub-scanning direction, enters the lenticular sheet C at a predetermined angle according to the original image b, and records a linear image of the original image b. When the recording of the linear image of the original image b is completed, the optical path changing unit 104 rotates again, inserts the lens 106a into the optical path of the light beam L, and similarly records the linear image of the original image a. By repeating this operation, the recording of the linear image of the original image a and the original image b is performed alternately, and the stereoscopic image is recorded.

Here, in the recording apparatus 100, the light beams La and Lb do not enter the same pitch of the lenticular sheet C but enter different pitches to record a linear image. For example, in the example shown in FIG. 9, the light beam Lb is incident on a position delayed by two pitches in the sub-scanning direction with respect to the light beam La. Accordingly, the image information of each linear image is transferred from the image processing unit 12 (the linear image processing unit 20) to the light beam emitting unit 22 in an order corresponding to the difference in the recording position.

In the recording apparatus according to the fourth aspect of the present invention, by changing the specification of the optical path changing means 104, it is possible to cope with an increase or decrease in the number of original images. FIG.
0 shows an example of an optical path changing unit corresponding to recording of a three-dimensional image of three original images.

In the example shown in FIG. 10, the optical path changing means 110 includes a lens 106a corresponding to the original image a and a lens 106b corresponding to the original image b, and further corresponds to the nine central original images c. It has a lens 106c that does not refract the light beam L at all. Like the optical path changing means 104, the lens 106c is rotated about a rotation axis 108 in accordance with a linear image of an original image to be recorded, and a lens corresponding to each is rotated. 106 is inserted into the optical path of the light beam L, and as shown in FIG.
a, Lb, and Lc enter the lenticular sheet C.

The method of rotating the optical path changing means 104 (110) is not particularly limited, and any method of rotating various disc-like objects may be used as long as the optical path of the light beam L is not obstructed, such as a method using a stepping motor. Is also applicable.

The optical path changing means is not limited to the one using a lens as shown in the figure, but may be one using a mirror or a prism or a combination of these. Good.

In the fourth embodiment of the present invention as well, the angle of incidence of each light beam on the lenticular sheet C may be appropriately set according to the conditions for photographing the original image, the curvature of the lenticular sheet C, and the like.

Furthermore, in the fourth embodiment of the present invention,
In order to match the main scanning direction with the generatrix of the lenticular sheet C, the angle adjustment of the scanning line SL as shown in FIG. Just like recording,
The conveyance of the lenticular recording material F and the modulation (image recording) of the light beam may be controlled.

The sub-scan is not limited to moving the drum 102, and the sub-scan may be performed by moving the light beam emitting device 22 in the direction of arrow y.

In the (stereoscopic image) recording apparatus of the present invention described above, a linear image of the entire original image may be recorded in one sub-scan, or may be recorded in a plurality of sub-scans. It may record a linear image of all original images.

In such an image recording for obtaining a stereoscopic view using the lenticular sheet C, it may be effective to enlarge the line width of the recorded linear image by an appropriate amount (line width enlargement). It is known, and preferably, one pitch P is filled without gaps or overlaps by a linear image of each original image, that is, in the example shown in FIG. 3, a ₁ + b ₁
It is preferable to adjust the line width of each linear image so that = P.

In the (stereoscopic image) recording apparatus of the present invention,
There is no particular limitation on the method of expanding the line width. For example, a lenticular sheet of the same specification is superimposed on the lenticular recording material F at the same pitch, and further, as described above, the angle of the mirror or polygon mirror is changed. A method of adjusting the angle of incidence of the light beam such that the angle can be adjusted or the angle of the lenticular sheet F can be adjusted is exemplified.
Further, in the fourth aspect of the present invention, the optical path changing means 104 may have a lens property to gradually increase the diameter of the light beam, so as to increase the line width.

In the three-dimensional image recording apparatus of the present invention described above, the image processing means 12 and the light beam emitting means and the light beam optical system are connected to each other. The image information output from the image processing unit 12 or the like is stored in a floppy disk by separately configuring the image processing unit 12 and the light beam emitting unit or the like, or configuring the reading device 18 separately. Alternatively, the image data may be stored in a recording medium such as an optical disc or an optical disk, and supply linear image information of an original image to a light beam emitting unit or the like via the recording medium.

The lenticular lenticular recording material F on which a three-dimensional image has been recorded in this manner is subjected to a development process according to the type of the recording material (photosensitive layer), and is converted into a three-dimensional image using the lenticular sheet C. The antihalation layer formed on the lower surface of the recording layer D is of course made colorless by the development process. Further, after the image recording is completed, before and / or after the development processing, if necessary,
A white layer, a protective layer, and the like may be formed on the back surface of the lenticular recording material F.

Although the three-dimensional image recording method and three-dimensional image recording apparatus of the present invention have been described in detail above, the present invention is not limited to the above embodiments, and various improvements and modifications can be made without departing from the gist of the present invention. Of course, changes may be made.

[0143]

As described above in detail, according to the present invention, an image can be directly recorded on a lenticular recording material having a recording layer on the back surface of a lenticular sheet. After recording the shape image, there is no need to perform a skill- and labor- and time-consuming operation of aligning and bonding the recording material and the lenticular sheet with high precision, as compared with a conventional three-dimensional image recording apparatus using scanning exposure. Stereoscopic images can be recorded with extremely high efficiency.

In addition, since the original image is read photoelectrically, and the lenticular recording material is scanned and exposed by a light beam modulated according to the image information to record a three-dimensional image, electrical image information processing and simple image processing are performed. By adjusting the optical system, it is possible to easily change and adjust the image recording area and the image density. Therefore, it is possible to easily cope with an increase / decrease in the number of original images, a change in specifications of a lenticular sheet, a change in magnification of a recorded image, image processing such as shading, a change in the size of a recorded image, adjustment of a color balance and a density balance, and the like.

Therefore, according to the present invention, it is possible to convert a high-quality three-dimensional image with extremely good workability, and according to the specifications of the lenticular sheet and the size of the recorded image, etc., and to which various image processing has been performed, with a high degree of freedom. Can be recorded.

[Brief description of the drawings]

FIG. 1 is a diagram conceptually illustrating an example of a first embodiment of a stereoscopic image recording apparatus according to the present invention.

FIG. 2 is a diagram conceptually showing formation of a linear image from an original image in the stereoscopic image recording apparatus of the present invention.

FIG. 3 is a view conceptually showing recording of a linear image on a lenticular recording material in the stereoscopic image recording apparatus shown in FIG.

FIG. 4 is a diagram conceptually showing another example of the first embodiment of the stereoscopic image recording apparatus of the present invention.

FIG. 5 is a diagram conceptually illustrating an example of a second embodiment of the stereoscopic image recording device of the present invention.

FIG. 6 is a diagram conceptually illustrating an example of a third aspect of the stereoscopic image recording device of the present invention.

FIG. 7 is a diagram for explaining a method of correcting a scanning line with respect to a generating line in the stereoscopic image recording apparatus of the present invention.

FIG. 8 is a diagram conceptually illustrating an example of a fourth aspect of the stereoscopic image recording device of the present invention.

9A and 9B are diagrams conceptually showing an optical path changing unit of the stereoscopic image recording apparatus shown in FIG. 8 and its operation.

FIG. 10 is a diagram conceptually showing another example of the optical path changing means used in the fourth embodiment of the three-dimensional image recording apparatus of the present invention.

11 is a diagram conceptually showing the operation of the optical path changing means shown in FIG.

FIG. 12 is a diagram showing image recording on a conventional lenticular recording material.

FIG. 13 is a diagram showing the principle of stereoscopic viewing of an image recorded on a lenticular recording material.

FIG. 14 is a diagram showing a conventional operation of producing a stereoscopic image by scanning exposure.

[Explanation of symbols]

 10, 70, 90, 100 Three-dimensional image recording device 12 Image processing means 18 Reading device 20, 72 Linear image processing device 22, 23 Light beam emitting means 24, 78 Light beam optical system 28 Main subject 30 Exposure control circuit 32 Light source 35 Nonlinear amplifier 36 Modulation circuit 37, 38 Drive circuit 39 Acousto-optic modulator (AOM) 40, 82 Shaping means 42, 44 Dichroic mirror 46, 52, 82, 84 Mirror 50 Rotating mirror 54 Polygon mirror 56 fθ lens 76 Half mirror 77 Light beam modulator 102 Drum 104, 110 Optical path changing means 106 Lens 108 Rotation axis C Lenticular sheet D Recording layer F Lenticular recording material

Claims (6)

(57) [Claims] When recording a plurality of original images from different viewpoints by scanning exposure on a lenticular recording material having a recording layer disposed on the back side of a lenticular sheet, image information of the plurality of original images is obtained. The image data to be recorded on the lenticular recording material for each original image, a light beam modulated according to the image information, the lenticular sheet at an angle according to the conditions for forming the original image of the linear image to be recorded Wherein the lenticular recording material is scanned and exposed. 2. A three-dimensional image recording apparatus for recording a plurality of original images from different viewpoints by scanning exposure on a lenticular recording material having a recording layer disposed on the back side of a lenticular sheet, wherein the plurality of original images are Image processing means for obtaining image information and processing the image information to be recorded on the lenticular recording material; and light beam emitting means for emitting a light beam modulated in accordance with the image information processed by the image processing means. A plurality of light beam optical systems for causing the light beam to be incident on the lenticular sheet at an angle corresponding to the forming conditions of the original image for recording, and the light beam emitted from the light beam emitting means according to the original image for recording. An optical path switching means for distributing the lenticular recording material to the light beam optical system at least for each scanning line of the original image scanning; Serial lenticular sheet generatrix direction substantially the same means that the main scanning direction, and the sub-scan direction which is the main scanning direction substantially orthogonal,
A three-dimensional image recording apparatus comprising: a scanning unit having a unit that relatively moves the light beam and the lenticular recording material. 3. A three-dimensional image recording apparatus for recording, by scanning exposure, a plurality of original images from different viewpoints on a lenticular recording material having a recording layer disposed on the back side of a lenticular sheet, Image processing means for obtaining and processing image information to be recorded on the lenticular recording material; a set of light sources for emitting light beams having different wavelengths according to the recording layer; and light emitted from the light source. A beam splitter for dividing the beam into a plurality of light beams, a plurality of sets of light beam modulating means for modulating the divided light beams according to image information of an original image to be recorded, and a plurality of light beam modulating means. A plurality of light beam optical systems for causing the modulated light beam to enter the lenticular sheet at an angle corresponding to the forming condition of the original image to be recorded; and Serial bus direction substantially the same means that the main scanning direction of the lenticular recording material wherein the lenticular sheet, and in the main scanning direction and the sub-scanning direction substantially perpendicular,
A three-dimensional image recording apparatus comprising: a scanning unit having a unit that relatively moves the light beam and the lenticular recording material. 4. A three-dimensional image recording apparatus for recording, by scanning exposure, a plurality of original images from different viewpoints on a lenticular recording material having a recording layer disposed on the back side of a lenticular sheet, Image processing means for obtaining image information and processing the image information to be recorded on the lenticular recording material; and light beam emitting means for emitting a light beam modulated in accordance with the image information processed by the image processing means. And a light beam optical system for causing the lenticular sheet to enter the lenticular sheet at an angle corresponding to the forming condition of the original image for recording the light beam, a plurality of image forming means, and the lenticular recording material with the light beam. Means for main scanning in substantially the same direction as the generatrix direction, and in a sub-scanning direction substantially orthogonal to the main scanning direction,
A three-dimensional image recording apparatus comprising: a scanning unit having a unit that relatively moves the light beam and the lenticular recording material. 5. A three-dimensional image recording apparatus for recording a plurality of original images from different viewpoints by scanning exposure on a lenticular recording material having a recording layer disposed on the back side of a lenticular sheet, wherein the plurality of original images are Image processing means for obtaining image information and processing the image information to be recorded on the lenticular recording material; and light beam emitting means for emitting a light beam modulated in accordance with the image information processed by the image processing means. A scanning drum that wraps and holds the lenticular recording material so that the generatrix and the circumferential direction of the lenticular recording material coincide with each other, and rotates in the circumferential direction; and a sub-scanning direction substantially perpendicular to the rotation direction of the scanning drum. In the direction
A sub-scanning unit that moves the scanning drum or the light beam; a light beam emitted from the light beam emitting unit is refracted by a predetermined angle in the sub-scanning direction, and the light beam is refracted at an angle according to a forming condition of an original image to be recorded. A three-dimensional image recording apparatus, comprising: a plurality of lenses that enter a lenticular recording material; and an optical path changing unit that switches the lenses according to an original image to be recorded. 6. The three-dimensional image recording apparatus according to claim 2, wherein the light beams for recording the same original image are combined into one light beam.