Abstract: Light from a light source 23 is processed on the image display element 30 by an image signal outputted from an image control section 19 to be projected on the screen of a predetermined curved surface shape. When the light from the light source is processed by the image signal, the image control section 19 processes an aberration shape of a projected image so as to coincide with the shape of a projection curved surface of the screen. Thus, a desired image can be clearly projected on the screen having the curved surface shape.

Abstract: The method and system of the present invention displays autostereographic images without parallax barriers or loss of resolution. A stereopair is processed and sent to a distant display and one or more transmissive displays placed in front of it. Each display has a calculated images containing at least some of the image information destined for both eyes of a viewer. Each display acts as a mask for the other displays. The processing of the stereopairs to produce calculated images comprises summing the predicted image data, comparing the predicted image data to the desired stereopair, and minimizing the error. In a preferred embodiment, this processing is performed by an artificial neural network. A spatial mask, such as a diffuser, can be placed between displays to suppress Moiré patterns.

Abstract: A wide-field-of-view projection display comprises a circularly symmetric lens and an array of light emitters, positioned along the focal circumference of the circularly symmetric lens so that light from each of the light emitters is substantially collimated by the lens in a different direction. A ray-diverting means, such as a slab waveguide or a reflector, ejects the collimated light out of the plane of the lens to the viewer. The planar circularly symmetric lens has no aberration, allowing adjacent views to be seamlessly joined because they can all be diffused by the same angular amount.

Abstract: An autostereoscopic display comprises an SLM which is controlled to provide an image display and a signal display. A parallax optic has a first portion which cooperates with the image display to form a plurality of viewing windows. A second portion of the parallax optic forms first and second images visible to an observer to allow the observer to distinguish between a desired orthoscopic viewing zone and undesirable viewing positions such as pseudoscopic positions. The pitch of parallax elements in the second portion is one and a half times the parallax element pitch in the first portion.

Abstract: This invention provides a stereoscopic display without using eyeglasses which does not require a means to switch images for left and right eyes and by which each viewer can observe a stereoscopic image even when many persons observe an image. The display includes a projector for a left eye 1L, a projector for a right eye 1R, and lenticular lens on a light incident side 2a which forms images for left and right eyes projected from each projector on a diffusing plate 2b alternately. A shutter means 4L, 4R include a plurality of shutter regions which can switch between light transmission and light shading and are placed laterally, and form a narrow-width image light reaching region, of which width is less than that of the shutter region, in each image forming region on the diffusing plate.

Abstract: It is an object of the present invention to implement a display providing high optical efficiency irrespective of the size of a light valve, and capable of enhancing the uniformity of the luminance of an image to be projected. In order to attain the foregoing object, for example, as shown in FIG. 1, a light valve 103 of a projector is located roughly at the focus point of an illumination lens 102. Further, as shown in FIG. 2, a light source 101 is also located roughly at the focus point of the illumination lens 102. Consequently, it is possible to implement a miniaturized projector.

Abstract: An image display apparatus of the present invention includes a screen, and a plurality of projectors which respectively project images relating to the same object so that the images are superimposed on each other on the screen. In the image display apparatus, one of the plurality of projectors is arranged spatially in substantially plane symmetric with another of the plurality of projectors so that the images are projected at projection angles onto the screen to be substantially in alignment on the screen.

Abstract: A substantially monocentric arrangement of optical components provides stereoscopic display of a virtual image, electronically scanned by resonant actuation of a resonant fiber scanner (137) using a flexible optical waveguide and projected, as a real intermediate image, near the focal surface (22) of a curved mirror (24) by means of a ball lens assembly (30). To form each left and right intermediate image component, separate left and right image generation systems (70) each comprise a resonant fiber scanner (137) that itself comprises a resonant cantilever portion (139) of optical fiber (138) that directs a modulated beam onto a curved surface (40) for projection by a ball lens assembly (30). A monocentric arrangement of optical components images the left and right scanning ball lens pupil at the corresponding left and right viewing pupil (14) of the observer (12) and essentially provides a single center of curvature for projection components.

Abstract: A device for projecting a color image upon a screen, including color image recording and color image reproduction with an enhanced color reproduction trueness in comparison to conventional processes. In the device two images are recorded in parallel, which separately detect the shorter and the longer wavelength parts of the individual principle color spectral regions. In image reproduction six primary valences are produced, which respectively comprise the image information of the shorter and the longer wavelength parts of each of the individual principle color spectral regions. In an alternative embodiment the device produces a full color, stereoscopic image reproduction, in which the three primary valences of the respective shorter wave part encode a stereoscopic half image and the three primary valences of the respective longer wavelength part encode the other stereoscopic half image.

Abstract: A substantially monocentric arrangement of optical components providing a multicolor stereoscopic display having an expanded color gamut. A virtual image is electronically generated by an image generation system (70) having four or more color light sources (20) and is projected, as a real intermediate image, near the focal surface (22) of a curved mirror (24) by means of a scanning ball lens assembly (100). To form each left and right intermediate image component, a separate image generation system (70) comprises a scanning ball lens assembly (100) that uses a spherical lens (46) for wide field of view and a reflective surface (102). A monocentric arrangement of optical components images the left and right scanning ball lens pupil at the corresponding left and right viewing pupil (14) of the observer (12) and essentially provides a single center of curvature for projection components.

Abstract: A stereographic display system comprises a signal processing unit receptive of stereographic images originating from stereographic image sources at a prescribed frame rate. The stereographic display system is operative to generate a multiplexed image stream and a series of synchronization pulses. An image display device is receptive of the multiplexed image stream and operative to display the multiplexed image stream as multiplexed images. A phase-locked loop is receptive of the series of synchronization pulses from the signal processing unit. An optical signal filter system is coupled to the phase-locked loop and receptive of the multiplexed stereographic images. The optical signal filter system includes rotating polarization filters that alternately pass or block the passage of a first and second image of the multiplexed stereographic images. The stereographic display system may be made, in whole or in part, an integral part of an item of apparel such as a pair of glasses or a helmet.

Abstract: When any observer in the audience, viewing either a television or a motion picture by our invention, receives an image of a given scene having the same relative size, shape and location on the retina of each of his two eyes at any instant and that image of the scene is stationary, the image is flat and resides at infinity. When, however, the image of the scene has some component of horizontal motion in any direction due to either motion of the camera, motion of scene objects (or both), during the acquisition of the moving scene, the image viewed is three dimensional. The reason for this is that if the motion occurs, all scene-object points are proportionally spatially located in playback since all of the original ray angles between camera and scene points are reproduced for both eyes by the ray cross-overs at the scene image points in the same proportionally relative positions as the original object points.

Abstract: An enlarged computer graphic image of borehole data is displayed on a concave three-dimensional surface, preferably a semi-cylindrical shape. Thus providing an enlarged image of a borehole surface where the data is spatially correct in three-dimensions, and which increases the ease with which interpreters can locate geological features such as surfaces, faults, and fractures.

Abstract: A video projection system employing a concave video screen which provides for enhanced depth cueing. A method of designing a variety of shapes of video screen surfaces by varying certain parameters of a common master equation. Video screen surface shapes providing optimum viewing for specific applications.

Abstract: A substantially monocentric arrangement of optical components provides stereoscopic display of a virtual image, electronically scanned by resonant actuation of a resonant fiber scanner (137) using a flexible optical waveguide and projected, as a real intermediate image, near the focal surface (22) of a curved mirror (24) by means of a ball lens assembly (30). To form each left and right intermediate image component, separate left and right image generation systems (70) each comprise a resonant fiber scanner (137) that itself comprises a resonant cantilever portion (139) of optical fiber (138) that directs a modulated beam onto a curved surface (40) for projection by a ball lens assembly (30). A monocentric arrangement of optical components images the left and right scanning ball lens pupil at the corresponding left and right viewing pupil (14) of the observer (12) and essentially provides a single center of curvature for projection components.

Abstract: A method for displaying simulated 3D space as an image includes the steps presenting a different image to each eye of a viewer by use of a 3D image display apparatus having an image display section, and using a convex lens to present as a real image within reach of the viewer's hands a 3D image produced from the images displayed at the image display section by parallax between the eyes. A device is provided for carrying out the method.

Abstract: A video projection system employing a concave video screen which provides for enhanced depth cueing. A method of designing a variety of shapes of video screen surfaces by varying certain parameters of a common master equation. Video screen surface shapes providing optimum viewing for specific applications.

Abstract: A dynamic time multiplexed holographic system including a holographic screen and a projector that projects successive perspective images onto the holographic screen. The projector includes a rotating polygon that provides successive image slices to the holographic screen and a spatial light modulator that provides successive image slices to the rotating polygon. The holographic screen refracts the successive perspective images perpendicular to the holographic screen.

Abstract: A multi-layer image display system and method thereof, in which liquid crystal type image display units for displaying the images according to depth necessary for obtaining the stereoscopic image are arranged according to layers at a predetermined interval without overlapping each other along the rotary axis and rotated as displayed the layer image corresponding to each image display unit, by which the screen is on to express the stereoscopic image when each image display unit arrives at the user's position; and another method in which the reflector or half mirror is installed instead of the image display unit and the layer image corresponding to the relative depth of the reflector or half mirror is synchronized with the rotation speed to express the stereoscopic image in the fixed high speed display device.

Abstract: Disclosed is an illustrator- or painter-operated, computer-mediated system for creating binocular, stereoscopic images from 2-D and 3-D image elements created by the operator or imported into the system. Depth effects are synthesized by creating parallax offsets which are applied to the display positions of the various elements in the view presented to each eye. The magnitude of the offset for each object is related to the depth of that object, the direction of the offset is related to which eye the view is intended for. A 3-D input device is described as a system component which may be used to control such a system. Additional techniques are disclosed whereby digital information so created may be displayed, broadcast, or utilized in a virtual reality system.

Abstract: Stereoscopic visualization display apparatus comprising a table (6) having a top (12) onto which a stereoscopic image is projected, a stereoscopic projector (2) closely adjacent to the table (6) and oriented so as to project an image away from the table (6) and towards a reflector (8) so positioned as to reflect the image from the projector (2) onto the table top (12).

Abstract: A self-illuminating video screen system employing a concave display surface which provides for enhanced depth cueing. A method of designing a variety of shapes of self-illuminating video screen display surfaces by varying certain parameters of a common master equation. Self-illuminating video screen systems having display surface shapes providing optimum viewing for specific applications.

Abstract: A method for increasing the number of intensity levels available on one or more color channels in an imaging apparatus (10) using a spatial light modulator (22). Multiple LUTs (52) are loaded into the imaging data path as data is directed to multiple spatial light modulators (22), wherein each spatial light modulator (22) has a separate bias voltage setting. In an alternate embodiment a single spatial light modulator (22) can be used with multiple LUTs (52) and with a changed bias voltage setting appropriate for use with each LUT (52).

Abstract: The invention features a volumetric display system including an optical relay, a motor, a support structure coupled to the motor, a projection screen disposed on the support structure, and a projection optic. During operation, the projection optic receives a light beam from the optical relay and projects the light beam onto the projection screen. Also, the motor rotates the support structure, the projection screen, and the projection optic about a rotation axis.

Abstract: A substantially monocentric arrangement of optical components provides stereoscopic display of a real image, electronically scanned by resonant actuation of a resonant fiber scanner (137) using a flexible optical waveguide and projected toward a curved retro-reflective surface (124). To form each left and right intermediate image component, separate left and right image generation systems (70) each comprise a resonant fiber scanner (137) that itself comprises a resonant cantilever portion (139) of optical fiber (138) that directs a modulated beam in a curved pattern for projection, such as by a ball lens assembly (30). A monocentric arrangement of optical components images the left and right ball lens pupil at the corresponding left and right viewing pupil (14) of the observer (12) and essentially provides a single center of curvature for projection components. Use of such a monocentric arrangement provides an exceptionally wide field of view with large viewing pupils (14).

Abstract: A stereo slide mount and a stereo slide viewer in which a pair of right and left film holders are adjusted in either a direction of separation or a direction of approach by a film pitch-adjusting device to enhance the operability.

Abstract: Autostereoscopic images are produced by projecting a stereo pair of images onto a modified cube-corner retroreflective material. The cube-corner differs from that commonly available in that it has been altered to return the light to viewers eyes rather than directly back to the source of the projection.

Abstract: An apparatus and method for generating and projecting autostereoscopic images with a look around feature, in particular a device which creates several full resolution perspective views of a scene and makes each one visible within a different region of space in front of a special lens screen assembly on which the images are projected. The apparatus, including an illumination system, a light valve, a relay lens, a beam steering device, a plurality of projection lenses and mirrors, a focusing lens, and a screen assembly such that the mirrors focus light exiting the projection lenses and the screen assembly has a diffuser.

Abstract: Switchable holographic optical elements (HOEs) can used in systems and methods for projecting three-dimensional images, or for projecting two-dimensional tiled images with increased size and/or resolution. One of the methods may include sequentially displaying first, second, and third color components of a first two-dimensional image at an object plane. The first two dimensional image represents a first slice of a three-dimensional image. As the first, second, and third color components are displayed, first, second and third HOEs may be activated so that the activated first switchable HOE focuses the first color component of the first two-dimensional image onto a first image plane, the activated second switchable HOE focuses the second color component of the first two-dimensional image onto the first image plane, and the wherein the activated third switchable HOE focuses the third color component of the first two-dimensional image onto the first image plane.

Abstract: An image projector, having a light source, an LCD panel into which a light emitted from the light source enters, and a projection lens into which the light emitted from the LCD panel enters. There exists, in an entrance pupil of the projection lens, a range in which light emitted from respective pixels of the LCD panel overlap with each other at least in a horizontal direction. The image projector forms part of an image display.

Abstract: It is an object of the present invention to implement a display providing high optical efficiency irrespective of the size of a light valve, and capable of enhancing the uniformity of the luminance of an image to be projected. In order to attain the foregoing object, for example, as shown in FIG. 1, a light valve 103 of a projector is located roughly at the focus point of an illumination lens 102. Further, as shown in FIG. 2, a light source 101 is also located roughly at the focus point of the illumination lens 102. Consequently, it is possible to implement a miniaturized projector.

Abstract: The invention provides a stereoscopic display capable of achieving three-dimensional images with excellent display quality and without using polarized glasses or the like. A stereoscopic display according to the present invention includes a device to electronically form composite stereoscopic images, an image forming device to reproduce real images of the composite stereoscopic images, and a focal device to substantially align the real images with a focal point position of eyes of an observer. In order to further enhance display performance, there are provided a Z-direction scanning device, a rotationally scanning device, and a matrix-type display that forms the composite stereoscopic images. On the other hand, there is provided a composite stereoscopic image-forming device including a projection device and a scanning-type scattering screen. In order to enhance display contrast, there are provided a polarization element and a polarized light separating device.

Abstract: A monocentric arrangement of optical components providing stereoscopic display of a virtual image, electronically generated, line by line, from a linear image source (36) and projected, as a real intermediate image, near the focal surface (22) of a curved mirror (24) by means of a scanning ball lens assembly (100). To form each left and right intermediate image component, a separate image generation system (70) comprises a scanning ball lens assembly (100) comprising a spherical lens (46) for wide field of view and a reflective surface (102). A monocentric arrangement of optical components images the left and right scanning ball lens pupil at the corresponding left and right viewing pupil (14) of the observer (12) and essentially provides a single center of curvature for projection components. Use of such a monocentric arrangement with linear image source (36) and scanning ball lens assemblies (100) provides an exceptionally wide field of view with large viewing pupil (14).

Abstract: For providing the image projecting system capable of substantially superimposing images without image blur which are provided from a plurality of image projecting apparatus when the original images are superimposed using the plurality of image projecting apparatus, distortion value of distortion aberration of images from projecting optical system comprised in the image projecting system is made substantially coincided in a region of using image height.

Abstract: Angle of incidence of reproducing light with respect to a hologram or a holographic stereogram is adjusted so that a reproduced image can be repetitively viewed without requiring the viewer to move his or her viewpoint. The components of the image reproducing apparatus can be roughly classified into a power supply unit equipped with a power supply for generating a driving power and various types of electric circuits, a light source unit equipped with light emitting diodes and the like, a supporting unit for supporting the light source unit, and a holographic stereogram display unit for holding the holographic stereogram and displaying an image. In this image reproducing apparatus, the light source unit is swingably or turnably moved repetitively with respect to the holographic stereogram so that the reproducing light has angle of incidence changed on the holographic stereogram, thus allowing change of viewed image.

Abstract: A stereo slide mount capable of adjusting a pitch between the right and left films, preventing a change in the pitch even when it is caused to fall. A plane land 9 is formed at the central portion of a base frame 3. After having adjusted a pitch between the two film holders 2 mounted on the right and left guide grooves, an adhesive label is stuck onto the land and onto the film holders to secure the film holders. A center window 12 is formed in a cover frame 1, so that the surface of the adhesive label can be viewed by eyes. Shooting data and a caption can be written on the surface of the adhesive label, or a picture of the film may be printed thereon on a reduced scale, or a bar code may be printed thereon and may be utilized for a voice guidance or for controlling a projector.

Abstract: An image reproducing apparatus having a small size and which is highly portable reproduces an image contained within a hologram or holographic stereogram. In one embodiment, when a movable section movably attached to an apparatus body is moved from a first position, in which the movable section abuts the apparatus body, to a second position in which the movable section and apparatus body are separated, illumination light from a light source is irradiated at a predetermined incidence angle onto a hologram or holographic stereogram attached to a hologram attach section. In other embodiments, light from a light source is reflected from an edge portion of a light transmitting member, or from a separately provided mirror, to be irradiated at a predetermined angle onto the hologram or holographic stereogram.

Abstract: An autostereo projection system uses multiple projectors to form an essentially seamless and extended field of view. Each projector is registered to a CRT display. Shutter elements in each projector create multiple pupils for each CRT display. Each CRT display is driven with different images for each shutter pupil. Seamlessness is promoted by the use of a tunable optical diffuser as part of a common lenticular viewing, lens.

Abstract: An image recording apparatus having a small size and which is highly portable reproduces an image contained within a hologram or holographic stereogram. In one embodiment, when a movable section movably attached to an apparatus body is moved from a first position, in which the mavable sections abuts the apparatus body, to a second position in which the movable section and apparatus body are separated, illumination light from a light source is irradiated at a perdetermined incidence angle onto a hologram or holographic stereogram attached to a hologram attach section. In other embodiments, light from a light source is reflected from an edge portion of a light transmitting member, or from a separately provided mirror, to be irradiated at a perdetermined angle onto the hologram or holographic stereogram.

Abstract: The image recording apparatus has a small size and excellent portability and reproduces a hologram or holographic stereogram during observation constantly with optimal conditions. When a movable section 3 movably attached to an apparatus body 2 is moved to a second position distant from a first position where the movable section 3 is contained in the apparatus body 2, illumination light from a light source 20 is irradiated at a predetermined incidence angle onto a hologram 9 attached to a hologram attach section 10.

Abstract: An image display system includes: an image projector including a mirror optical element for forming an exit pupil for viewing an image at a viewing location; a viewer eye position detector for generating a signal representing the position of a viewer's eyes relative to the location; and a control system responsive to the signal for providing relative motion between the viewer and the image projector to maintain the viewer's eyes at the exit pupil.

Abstract: A stereo slide mount and a stereo slide viewer in which a pair of right and left film holders are adjusted in either a direction of separation or a direction of approach by a film pitch-adjusting device to enhance the operability.

Abstract: An enlarged computer graphic image of seismic data is displayed on a concave three-dimensional surface having a shape corresponding to the shape of selected data extracted from a three-dimensional seismic volume. Thus providing an enlarged image of a seismic surface where the data is spatially correct in three-dimensions, and which increases the ease with which interpreters can locate geological features such as horizons, faults, and channels. An auxiliary paddle screen is provided to display an interactive video image for exploring the volume within the hybrid screen.

Abstract: A monocentric autostereoscopic optical apparatus (10) for viewing a virtual image, electronically generated and projected on a curved surface. For each left and right image component, a separate optical system comprises an image generation system (701, 70r) and projection system (72), the projection system comprising a spherical diffusive surface (40) and a ball lens (30) to provide wide field of view. A monocentric arrangement of optical components images the ball lens pupil (48) at the viewing pupil (14) and essentially provides a single center of curvature (C) for projection components. Use of such a monocentric arrangement, diffusive surface (40), and ball lens (30) provides an exceptionally wide field of view with large viewing pupil (14).

Abstract: A monocentric autostereoscopic optical apparatus (10) for viewing a virtual image, electronically generated and projected on a curved surface. For each left and right image component, a separate optical system comprises an image generation system (70l, 70r) and projection system (72), the projection system comprising a spherical diffusive surface (40) and a ball lens (30) to provide wide field of view. A monocentric arrangement of optical components images the ball lens pupil (48) at the viewing pupil (14) and essentially provides a single center of curvature (C) for projection components. Use of such a monocentric arrangement, diffusive surface (40), and ball lens (30) provides an exceptionally wide field of view with large viewing pupil (14).

Abstract: An optical system for shooting a three-dimensional image and a three-dimensional image shooting apparatus using the optical system produces an image with a smaller amount of light leaked from the side to be cut off over an entire image frame when parallax images are obtained by employing a shutter in which the extinction ratio varies depending on an incident angle. The optical system includes a pair of front optical components each having negative optical power, an optical member for superimposing optical axes of the pair of front optical components with each other, a rear optical component disposed to have an optical axis aligned with the superimposed optical axes, and a shutter capable of independently controlling amounts of transmitted light incident upon the pair of front optical components from an object. The shutter is disposed between the pair of front optical components and the rear optical component.

Abstract: An image display apparatus is provided with a screen having retro-reflectivity, a liquid crystal display device displaying an image, a projection optical system projecting the light of the liquid crystal display device onto the screen, and a beam magnifier located close to the screen and magnifying the light beams, included in the projected light, expressing individual points of the image. The beam magnifier is composed of a diffraction optical element or a diffusing plate, and magnifies each light beam so that the magnification is larger in the direction of the horizontal field of view than in the direction of the vertical field of view. When images having parallax are provided for the left and right eyes, an upper limit of the magnification of the light beams is set in consideration of the distance between the left and right eyes to prevent cross-talk.

Abstract: A liquid crystal display unit has a transmissive liquid crystal plate having a number of pixels arranged on a two-dimensional basis, on which an image is formed, and a light source unit emitting beams of light of a plurality of luminescent colors for irradiating said liquid crystal plate from back. An interface circuit receives an image signal representative of a color image to sequentially form on said liquid crystal plate a plurality of separation images in which the color image is separated in association with the plurality of luminescent colors of said light source unit. The interface circuit causes said light source unit to flash with a luminescent color associated with a separation image formed on said liquid crystal plate in synchronism with a sequential formation of the separation images onto said liquid crystal plate. Beams of light emanated from the light source unit and transmitted through the liquid crystal plate reproduce an image.

Abstract: This invention relates generally to improved approaches for displaying volumetric three-dimensional (3D) images. The basic idea features improved optical-mechanical mechanisms enabling creation of volumetric 3D images by successive projection of whole frames of 2D images, through an optical-mechanical image delivery system, onto a display plane that moves periodically and sweeps a space. In the rotating approach, two image delivery mechanisms can be used: a revolving multi-mirror system and a revolving orthogonal switchable reflector system. In the reciprocating approach, the image delivery mechanisms include a reciprocating reflector system and a zooming optics.

Abstract: A stereo slide mount capable of adjusting perspective feeling of a stereo image into an optimum state, comprising a base frame 3 having a guide groove formed running in the lateral direction, two film holders 2 fitted in the guide groove, and a cover frame 1. Films are mounted on the two film holders 2 on the base frame 3, and the stereo slide mount is mounted on a stereo slide viewer equipped with a cam mechanism for adjusting the gap between the film holders. The pitch between the films is adjusted to obtain an optimum perspective feeling while observing a stereo image, and the cover frame is mounted after the adjustment.