Abstract: An improved stereoscopic picture, comprising:(a) a lenticular faceplate material having a predetermined number of lenticules, the lenticules having a given pitch and a given subtended primary angle; and(b) a photographic receiver mounted on the lenticular faceplate material and on which are recorded sets of right and left perspective views of a first pair of stereoscopic pictures, the lenticular faceplate material and the photographic receiver being aligned so that each set on the photographic receiver corresponds to an associated given lenticule of the lenticular faceplate material, the width of the sets of right and left perspective views being less than the pitch of the lenticules.

Abstract: An optical system using a lens assembly with the screen of a computer CRT or LCD unit, said computer being coupled to an MRI apparatus for receiving data therefrom. Data from the MRI to be presented to the CRT screen is provided as a two-dimensional image rotatable about a selected axis. Light rays from the image pass through the slit of a curtain shutter so that a continuum of views of the image will be projected onto a lenticular film. In another embodiment a Ronchi grating is used. A film having an emulsion engages the back side of the Ronchi grating forwardly of a stationary lenticular screen. A motor drives the Ronchi grating transversely of the light rays. Thus, the rotating image will be represented by light rays which pass to the Ronchi grating. The light rays pass through the grating and expose the emulsion of the film.

Abstract: An optical system using a lens assembly with the screen of a computer CRT or LCD unit, said computer being coupled to an electromagnetic radiation source for receiving data therefrom. Data from the source to be presented to the CRT screen is provided as a two-dimensional image rotatable about a selected axis. Light rays from the image pass through the slit of a curtain shutter so that a continuum of views of the image will be projected onto a lenticular film. In another embodiment a Ronchi grating is used. A film having an emulsion engages the back side of the Ronchi grating forwardly of a stationary lenticular screen. A motor drives the Ronchi grating transversely of the light rays. Thus, the rotating image will be represented by light rays which pass to the Ronchi grating. The light rays pass through the grating and expose the emulsion of the film. In the alternative, the Ronchi grating can remain stationary while the film moves relative to the grating.

Abstract: The improved method and apparatus for recording a stereoscopic image read a plurality of original images photoelectrically, split each original image into linear images of a desired pitch, perform any necessary image processing operations such as arranging the linear images in the recording order, and record the linear images by scan exposure on a lenticular light-sensitive material having a lenticular sheet and a recording layer. The method and apparatus permit the lenticular light-sensitive material to be scan exposed from the rear side and they also enable the linear images to be recorded with increased line width and a stereoscopic image to be formed with satisfactory registration between the principal objects of the original images. The improved lenticular light-sensitive material has an anti-halation layer provided between the lenticular sheet and the recording layer, thus permitting scan exposure to be effected from the rear side.

Abstract: An image sheet (12) is coated with a radiation curable adhesive (48) at a coating station and then laminated to a lenticular array sheet (20) at a laminating station (50). A lamination of the image and array sheets is then positioned on an aligning station (56) where the lenticules of the array sheet are aligned with the image lines (16) of the image sheet. The adhesive is set at a curing station (60).

Abstract: In front of an exposure stage and behind the exposure stage, loop spaces are provided on the roll paper transporting path of a printing/developing apparatus. The movement of the exposure stage is ensured by the loop. When the roll paper is fixed, one loop space is provided in front of the exposure stage, and one loop space behind the stage, thus allowing the exposure stage to move. Alternatively, the negative mask unit and lens unit of the apparatus are movable, so that roll paper is usable when the exposure stage is fixed.

Abstract: A negative detection device comprising the likes of a CCD camera and line sensors is incorporated in a 3D photographic printing apparatus in which a lenticular sheet is used. The negative detection device measures the positional shift of the key subject of the 2D negative. If the key subject shift exceeds a predetermined threshold value, a correction is introduced to regulate the spacial parallax of a background object. If the key subject shift is less than a predetermined threshold value a correction is introduced to regulate the spacial parallax of a foreground object. Exposure is performed after positional adjustments are made.

Abstract: Multidimensional lithographs which impart the illusions of depth and/or motion to a viewer are prepared by constructing and sequencing a plurality of electronic pages, preferably four or more; rasterizing, compressing and converting each page; interlacing the pages in a desired sequence; outputting the interlaced frames to an imaging device; and producing a lithographic separation from the imaging device. In the rasterization of each frame, nonbinary pixels are created that correspond to the resolution of the line count of the lenticular lens that will ultimately be applied to a print of the lithograph times the number of frames in the lithographic separation. The frames are compressed to an amount equal to the reciprocal of the number of frames from which the lithographic separation is prepared. In the converting step, the nonbinary pixels of the compressed frames are converted to individual color plates of binary pixels.

Abstract: A method and apparatus which provides alignment lines adjacent to a lenticular image. The alignment lines are projected through a lenticular overlay and used to align the overlay to the image. The alignment apparatus uses a light sensor and a computer to detect either changes in brightness or changes in a Moire pattern of the lines to effect rotational alignment and to detect either centeredness of the lines or brightness changes in the lines to effect translational alignment as the overlay is rotationally or translationally moved with respect to the print by the computer. An increase in brightness indicates motion toward either rotational or translational alignment. A constant brightness along the lines indicates rotational alignment while a peak in brightness indicates translational alignment.

Abstract: An image sheet (12) is coated with a radiation-curable adhesive (48) at a coating station and then laminated to a lenticular array sheet (20) at a laminating station (50). A lamination of the image and array sheets is then positioned on an aligning station (56) where the lenticules of the array sheet are aligned with the image lines (16) of the image sheet. The adhesive is set at a curing station (60).

Abstract: A radiation curable adhesive composition which comprises from 15 to 85 percent by weight of beta-carboxyethyl acrylate and from 85 to 15 percent by weight of 2-phenoxyethyl acrylate based on the total weight of the composition.

Abstract: Disclosed herein is a method of forming a graphic image having the appearance of three-dimensionality, the method comprising the steps of: providing a preformed lenticular film having a flat side and having a side with lenticules opposite the flat side; and printing an image on the flat side of the lenticular film using web fed printing to produce a graphic image web in which the perceptible image possesses photographically acceptable quality, wherein the image elements are printed on the lenticular film at an angle which corresponds to the pitch of the lenticules of the lenticular film.

Abstract: The present invention is a system and method that produces an internegative 60 from a digitally processed image or images that are originally captured on film or digitally. The digital processing by a computer 58 allows digital operations to be performed such as filtering, image overlay and stereo image creation. The internegative 60 is reduction printed using an enlarger apparatus 70 and developed, thereby increasing the resolution of the printed image. A lenticular cover can be attached to a stereo picture produced in this way to mass produce a high angular resolution, three dimensional photograph 8. The internegative can also be enlarged allowing digital processing to be applied to poster and billboard type images.

Abstract: A dual-mode photographic printer which can be used to make both two-dimensional and three-dimensional photographs having two print material cassettes which separately supply 2D and 3D print materials. An easel is transported to one of the cassettes to pick up a section of print material according to the printing mode. The same easel moves the print material to different locations for 3D printing. A chemical processor is included in the printer so that photo-processing is part of the on-line printing process.

Abstract: A 3D printer that uses two video cameras with different magnification powers for acquiring images from 2D negatives for editing and key subject alignment. One video camera takes full view image for key subject selection and picture cropping, the other video camera which is used for acquiring image data for key subject alignment sees only an enlarged section of the image around the key subject. The printer also uses an automated image matching algorithm to find the relative location of the key subject in each frame. In particular, the algorithms are divided into a crude computation step and a fine computation step which reduces computation time. The printer uses a criterion to check whether the actual key subject alignment is satisfactory. The optics for printing and key subject alignment are assembled on a single mechanical stage to reduce mechanical errors.

Abstract: A 3D printer and method which uses a beamsplitter or a mirror to form a reflected image which is a mirror image of the actual image exposed on the print material. A CCD detector array is placed on the reflected image plane to monitor the key-subject registration. The beamsplitter or mirror is physically linked to the print material cassette so that the CCD detector array shares the same projected image that is exposed on the print material regardless of the printing position. With such an approach, the CCD detector array can directly detect any off-alignment due to mechanical errors or distortion/aberration by the projection lens.

Abstract: A method of making stereoscopic images comprises a first step of exposing a color negative film in a stereoscopic camera to produce a film strip having a plurality of stereo image pairs thereon and then a second step of printing the stereo image pairs onto a color transparency material in a circular pattern. The method may further include the step of punching a disk out of the color transparency material with the stereo image pairs arranged around the circumference of the disk.

Abstract: Handling of emulsion surfaces of both 3D and conventional photographs in the cases of development and drying processes is made possible by the following providing apparatus including a mechanism for selection of emulsion surface or selective reversal of the photographic paper. The difference in the processing time of 3D and conventional photography is dealt with by switching photographic paper conveying routes in the development section when processed such as development, bleach fixing and stabilizing processes take place. Printing of 3D photography is dealt with by making movable either both an exposure station and a lens or just the lens alone. Furthermore, switching is provided between respective lenses for conventional and 3D photographic printing. A suction type exposure station may be used, and may employ a mechanism to control an adhesive force applied to a photographic paper in the conventional and 3D photography.

Abstract: An image array comprising a cellular structure, typically comprising three-dimensional image data and apparatus for forming such an array, typically on photographic film. Each cell within the array comprises an image component and a reference mark formed by the same element of a microlens array. By use of the reference marks, the film may be separated from the lens array and image processed with improved flexibility and precision.

Abstract: A stereoscopic disk for viewing stereo images in a binocular viewer includes a film disk with a plurality of stereo image pairs disposed around the periphery of the film disk, sandwiched between a pair of disks of opaque material defining windows, in which the stereo images on the film disk are located. A method for making the stereoscopic disks includes the steps of making a master image of the stereoscopic images arranged in a circular pattern, printing the master image onto photographic film, laminating the film with strips of opaque material having windows for the images on the disk, and punching out the finished disk from the laminated assembly. A simple stereo viewer employs the film disks without the laminations.

Abstract: The improved method and apparatus for recording a stereoscopic image calculate the linear image recording positions for each lenticular lens in connection with all of the linear images of the nth original image in such a way that all of the linear images of the nth original image that are to be recorded in association with the respective lenticular lenses will fall within the same area at the intended viewing position, and record the linear images by an image forming means on the basis of the results of said calculation. Therefore, according to the present invention, stereoscopic images of high quality can be recorded using the lenticular sheet without causing any serious defects such as multiple image or image flickering.

Abstract: An optical system using a lens assembly with the screen of a computer CRT or LCD unit, said computer being coupled to an MRI apparatus for receiving data therefrom. Data from the MRI to be presented to the CRT screen is provided as a two-dimensional image rotatable about a selected axis. Light rays from the image pass through the slit of a curtain shutter so that a continuum of views of the image will be projected onto a lenticular film. In another embodiment a Ronchi grating is used. A film having an emulsion engages the back side of the Ronchi grating forwardly of a stationary lenticular screen. A motor drives the Ronchi grating transversely of the light rays. Thus, the rotating image will be represented by light rays which pass to the Ronchi grating. The light rays pass through the grating and expose the emulsion of the film.

Abstract: A stereoscopic system includes a stereoscopic camera for exposing color negative film and a printer for printing the color negative stereo images captured by the camera onto positive color transparency film. In one example, the stereoscopic camera is a fixed exposure single use camera. A stereoscopic printer for producing stereoscopic disks includes a rotating print head for exposing a plurality of stereo image pairs in a circular pattern. A stereoscopic disk of the type that is used in a View.RTM.-Master viewer is produced from the transparency film.

Abstract: In the improved method for projection a stereoscopic image, an additional lenticular sheet that has an appropriate level difference and a different pitch of lenticular lenses than a lenticular recording material such as a lenticular light-sensitive material is either placed directly on top of said lenticular recording material or inserted above and in the vicinity of said lenticular recording material, with said additional lenticular sheet being preferably moved either in one direction or reciprocally in a direction generally perpendicular to its own generatrix. This method can be implemented with the improved apparatus for printing a stereoscopic photograph. Using the improved method and apparatus, the development of moire can be suppressed and, at the same time, the line width of linear image elements to be recorded can be easily expanded.

Abstract: The present invention is a method for forming a graphic image web including a precursor image web combined with a congruent lenticular lens to produce the illusion of three dimensionality in a visually perceptible image on the graphic image web. To produce this illusion of three dimensionality, an image field including an object is defined. The object is imagewise exposed onto a photographically sensitive element over a plurality of spatially disparate views through a lenticular lens having a prescribed optical geometry. Upon developing the latent image on said element, it is printed to form the precursor image web. The congruent lenticular lens is then combined with the precursor image web to create the graphic image web having graphic information imparted with the illusion of three dimensionality.

Abstract: A system and method that determines a number of scan lines for each image of a view using a resolution of the recording media, a pitch of the lenticules and a number of views needed to minimize angular transitions between views. The viewing range is also increased by allowing the primary visual field to be offset with respect to the projection field of the lenticules such that the image lines can be positioned under lenticules adjacent to the lenticule projecting the image lines as the distance from a central viewing position increases.

Abstract: A method and apparatus for producing the image elements of a lenticular image. The lenticular image includes a plurality of composite images of the same scene where each composite image includes image lines. The image lines of one composite view are interleaved with the image lines forming the other composite images to create image line sets. The sets include one image line from each composite image. The sets of image lines are aligned with the lenticules of a lenticular overlay by adjusting the spacing between the image line sets, so that the sets are in optimum alignment or phase relationship with each lenticule of the lenticular overlay. The spacing between image lines and/or between scan lines and/or image line sets can be adjusted to correct phase errors. The scan lines are printed in a fast scan direction of a printer in alignment with the lenticules.

Abstract: The present invention is a method for forming a graphic image web including a precursor image web combined with a congruent lenticular lens web to produce the illusion of three dimensionality in a visually perceptible image on the graphic image web. To produce this illusion of three dimensionality, an image field including an object is defined. The object is imagewise exposed onto a photographically sensitive element over a plurality of spatially disparate views through a lenticular lens having a prescribed optical geometry. Upon developing the latent image on said element, it is printed to form the precursor image web. The congruent lenticular lens web is then optically combined with the precursor image web to create the graphic image web having graphic information of photographically acceptable quality imparted with the illusion of three dimensionality.

Abstract: In processing a plurality of original images from different viewpoints through a lenticular sheet having a plurality of lenticular lenses to form a plurality of corresponding linear picture elements that are to be projected on a picture element recording or display medium, the following steps are taken: launching the beams of light from the respective original images into one or a corresponding number of projection lenses; separating the transmitted beams for the respective original images by means of a mirror optical assembly consisting of mirror units each composed of at least two mirrors for each original image; adjusting the optical pathlengths of the beams to the picture element recording or display medium by means of the mirror assembly; adjusting the key subject matter in the mirror assembly so that it will register among the projected views of all original images; allowing the beams to be incident on lenticular lenses at predetermined projecting angles; and imaging those beams as linear picture elemen

Abstract: There is disclosed a method of making autostereographic images of an object, comprising the steps of inputting to a computer a predetermined number of planar images of the object, each of the planar images being a view of the object, from one of the predetermined number of different viewpoints; interleaving the predetermined number of planar images in the computer; and printing the interleaved images with a high-resolution output imaging device on a spacer, a selected edge of each interleaved image being aligned with a predetermined direction on the spacer.

Abstract: A method for high-speed and simultaneous printing of a number of 3-D photographs by utilizing a printer with a wide field of coverage so that all of the 2-D views required to produce a 3-D photograph are projected simultaneously onto the number of 3-D photographs corresponding to the number of 2-D negatives utilized. All of the 3-D print materials advance to the next position for printing until all of the image bands are filled with a portion of the appropriate 2-D view. A high speed printer with a wide field of coverage capable of simultaneously projecting all of the 2-D views required to produce a 3-D picture onto a number of 3-D prints which may have a computer or microprocessor controlling the exposure and moving the 3-D print material between exposures.

Abstract: A two-stage 3D printer comprises an edit stage in which a key subject is selected and image color data and key subject registration data are generated from negative 2D images and a print stage in which those data are used to optimize exposure of the 2D images and to provide key subject registration of the 2D images on lenticular print material. Exposure control and key subject registration in the print station are fully automated. The only required operator intervention in the operation of the printer is selection of a key subject of the photographic scene in one of the 2D images at the edit station.

Abstract: A method and apparatus for achieving uniform density of image elements of a 3-D photograph by using a 3-D printer with a linear motion blade shutter which travels at varying speeds during printing a negative view to control the duration of exposure across the 3-D photograph. The scanning speed of the linear shutter is varied during the exposure of each of the 2-D negative views and is based upon the position of the 2-D negative view in relation to the field of illumination of the enlarging lens in order to compensate for the non-uniformity of illumination due to the vignetting effect.

Abstract: System capable of reproducing high quality moving three-dimensional images with a non limited orthoscopic viewing angle consisting of the projection of several images PR.sub.1. PR.sub.2 . . . PRn, taken from several different spatial positions onto a transparent optical system; this transparent optical system is composed, in its front part, of an optical sheet of vertical cylinders (1) of small enough transverse dimensions so as to be imperceptible, such that the relationship between its transverse dimensions d and its focal length f is at least greater than the value obtained when dividing the distance between two adjacent projectors K.sub.

Abstract: Projected image misalignment in a 3-D motion picture projector is corrected by shifting one of the projection lenses in accordance with a predetermined program during presentation of the motion picture. In one embodiment, manually initiated control signals for adjusting the lens shift are recorded in a memory and can be subsequently retrieved for automatically controlling lens shift. In another embodiment, lens shift is controlled by reading predetermined witness marks on the film.

Abstract: A method and a printer for printing an image array on the photosensitive surface of lenticular print film from a set of 2D views which involves moving the negative carrier on the printer in accordance with the equation ##EQU1## where S is the distance between key subject images of adjacent 2D views,T is the separation between adjacent camera lenses,F is the back focal length of the camera lens,K is the distance between the lens of the camera and the key subject K' and moving the negative by the appropriate S value between printing of adjacent 2D views.A fully automatic and semi-automatic printer is provided.

Abstract: Three-dimensional photographs produced with image bands of substantially equal density across the field of the lenticule are produced by increasing the intensity of exposure of the image bands near the edges of the lenticule in relation to the central image bands. This is accomplished by varying the duration of each exposure, or using a neutral density filter, a neutral density iris, a metallic iris with a multiple number of apertures, or by controlling the lamps in a multiple lamp housing. In addition, three-dimensional photographs are produced by a multiple number of successive exposures of short duration through the lenticules of the lenticular print film while the angle of projection of the enlarging lens is constantly changing. Exposure is made for a duration while the relative movement of the enlarging lens with respect to the lenticular print film is less than one-tenth of the aperture of the enlarging lens.

Abstract: A photocopier for reproducing an image of an object together with a "special effect" image that is related to the image. In one embodiment, the "special effect" image is the same entire image, or a modified portion, that is reproduced at an adjacent position and in a different color, or in otherwise different visual form. In another embodiment, the "special effect" image is a fixed geometric figure, or portion, such as a line, circle, box, or other shape, also in different color or visual form. In still another a dual version of the image is reproduced to be viewed as a three dimensional configuration. In a still further variation, a portable video camera is used as a reader to obtain dual views of the object to be reproduced, to present a three dimensional reproduction by the photocopier.

Abstract: A method of effecting a three-dimensional print by a non-scanned exposure of three-dimensional lenticular print material is provided wherein a lenticular print material and a film having a plurality of exposed frames thereon are placed in opposing imaging planes and a lens and a periscope are positioned between the film and the print material; the periscope including first and second parallel mirrors positioned so as to reflect light along an optical path from the film through the lens to the print material, each of the parallel mirrors rotatable about a first axis normal to the lens optical axis and a second axis intersecting the first axis.

Abstract: Three-dimensional photographs are produced in which there are three image bands within each lenticule in which each image band is between 8.5 degrees and 11 degrees in width in order to permit a photograph to be viewed from wider angles so that the eyes will see adjacent stereo pairs from any viewing angle and the picture will be in total focus. A three lens camera is provided to take these photographs.

Abstract: Apparatus for producing a record of an object field in which substantially perspective change in one direction only is recorded. The apparatus comprises elongate aperture means (35) and an array of lens elements (34) which extends in two dimensions and is disposed in an image field. Each lens element (34) is convergent in all planes orthogonal to the array. Recording means are so arranged that each lens element (34) forms an image thereon. Each recorded image (36) is derived from rays from a range of perspectives of the object field in one direction and a substantially smaller range in an orthogonal direction and each recorded image (36) is distinct from each other recorded image. Reproduction apparatus allows an autostereoscopic image to be formed on conventional lenticular material from an intermediate record produced by the recording apparatus.

Abstract: An autostereoscopic picture is produced in which the width of the lineiform image bands of the stereo pairs within each lenticule are varied and adjusted to compensate for the visual parallax between the stereo pairs of the 3-D photograph according to the depth of field of each 3-D photograph in order to accommodate the interoccular distance and viewing angle of the eyes to improve the depth-of-field and 3-D effect of each 3-D photograph.

Abstract: Apparatus and method of projecting photographic images from a first film onto a second film. The images on the first film are made in a scan camera and represent a series of aspect views of a subject photographed by the scan camera. The apparatus includes means at a first location for mounting the first film adjacent to a first lattice. Light is directed through the first film and the first lattice as the first film and first lattice are moved one pitch line relative to each other. The light is then directed through a projection lens and a second lattice and onto a second film spaced from the first film as the second lattice and the second film move relative to each other one pitch line. The first and second lattices can comprise Ronchi gratings or can be first and second lenticular screens.

Abstract: A method and apparatus for making three-dimensional photographs involve projecting from a fixed position a first one of a series of images in a predefined projected image area on a structure, moving the structure and projecting from the fixed position a second one of the series of images on the structure in the predefined image area. The structure includes a raster mounted to a spacer which supports a film stock on an opposing side. Exposure of the film is controlled by a shutter on the raster side of the structure. Also disclosed are various photograph structures employed to obtaining the series of images to be projected and various constructions of the structure related to making the three-dimensional photographs in addition to the techniques for establishing the predefined image area.

Abstract: A method and apparatus for exposing a photographic film with a true three-dimensional image when the image emanates from a photographic film having a pseudo three-dimensional image. A lenticular member having lenticulations on one surface is adapted to be mounted adjacent to a frame containing a film having a pseudoscopic or pseudo three-dimensional image thereon. The frame for the first film is spaced between the flat rear face of the lenticular member and a grating mask having a plurality of uniformly spaced slits therethrough which pass light. A second frame for a second photographic film is mounted on the opposite side of the grating mask. The frames have drive motors coupled thereto and control means causes the drive motors to operate simultaneously to move the frames at the same speed in opposite directions as light enters the lenticular screen and passes through the first film and the grating mask and onto the emulsion of the second film.

Abstract: An apparatus and method of producing a parallax stereogram, i.e., free vision stereogram, and particularly for the accurate registration of a plurality of film images in order to ensure stereographic reproduction. The images on a film strip are optically viewed to establish homologous points for each film frame image. In one embodiment two images are optically superimposed to establish a stereo base distance. Each film frame is marked in accordance with the homologous points or stereo base distance. The marking may be mechanical or optically generated. Each film frame is thereafter aligned or sensed while in an enlarger, the marks establishing the accurate registration of each frame. Each film frame is exposed onto a photosensitive material using a movable line grid. A lenticular screen is superimposed over the developed picture to form the stereoscopic photograph.

Abstract: Illumination apparatus for a three-dimensional enlarging printer in which a moving lamphouse assembly is tilted at angles that vary proportional to the distance of the lamphouse from the center of scan. The tilt angle of the lamphouse is controlled by a motor or the like to direct the maximum illumination available towards the negative and lens associated with the printer and onto the print film to produce a high quality print rapidly.

Abstract: An apparatus and method of producing a parallax stereogram, i.e., free vision stereogram, and particularly for the accurate registration of a plurality of film images in order to ensure stereographic reproduction. The images on a film strip are optically viewed to establish homologous points for each film frame image. In one embodiment two images are optically superimposed to establish a stereo base distance. Each film frame is marked in accordance with the homologous points or stereo base distance. The marking may be mechanical or optically generated. Each film frame is thereafter aligned or sensed while in an enlarger, the marks establishing the accurate registration of eaach frame. Each film frame is exposed onto a photosensitive material using a movable line grid. A lenticular screen is superimposed over the developed picture to form the stereoscopic photograph.

Abstract: In a processor for producing autostereoscopic pictures on lenticular print film, a film strip carrier sequentially positions frames of a negative film strip series in front of a projecting and enlarging lens. A lamp housing provides a light source through a light cone for exposing each negative onto the film, and a stepping motor moves the lens and negative to scan a predetermined segment below each lenticule, and stops the lens when the next negative is to be advanced into the light gate. A driving motor is coupled to the lamp housing, and the speed of the motor and width of the light cone are determined as a function of the operating characteristics of the processor such that the lamp housing moves without stopping during the entire projecting cycle and the cone width is the minimum necessary to permit such continuous movement.

Abstract: There is disclosed a method of making autostereographic images of an object, comprising the steps of inputting to a computer a predetermined number of planar images of the object, each of the planar images being a view of the object, from one of the predetermined number of different viewpoints; interleaving the predetermined number of planar images in the computer; and printing the interleaved images with a high-resolution output imaging device on a spacer, a selected edge of each interleaved image being aligned with a predetermined direction on the spacer.