Abstract: A stereoscopic image display apparatus includes a display panel and an image conversion sheet. The display panel includes a plurality of pixel units. Each pixel unit has a zigzag shape that extends in a first direction. The image conversion sheet includes a plurality of lens units. Each lens unit extends in the first direction and is disposed in a second direction different from the first direction. A plurality of the lens units is disposed in parallel with each other.

Abstract: An image display device includes display regions, each having sub-pixels arranged therein, a pixel groups, each including a pixels, each pixel being composed of the sub-pixels included in the unit display regions adjacent to each other, a separating element which separates light of the image into light beams directing in different directions in the unit of one pixel group, an image signal supply unit which supplies an identical image signal or different image signals to the pixel groups, respectively, and a selection unit which selects a number of pixel groups or a number of pixels included in the pixel group.

Abstract: Provided is a high-resolution field sequential autostereoscopic display. The display includes a display panel including display elements which display images, a lenticular array receiving a signal from the display panel and outputting a directional signal to be viewed with both eyes of a viewer, an anisotropic element arranged parallel to the lenticular array and outputting from the lenticular array a phase-alternated signal, a polarization switch switching the output phase of the anisotropic element according to an image refresh rate of the display panel, and a polarizer outputting a signal with a predetermined phase among phases of an output signal of the polarization switch. The autostereoscopic display provides full resolution stereoscopic images viewable without eyeglasses. Conventional low cost TN LCD panels can be applied to the autostereoscopic display without significant increase of flickering or crosstalk between the left and right images.

Abstract: In a II system display apparatus, in a normal display mode, a parallax component image is divided into pieces corresponding to respective columns for a parallax interleaved image. The component image is obtained by subjecting a subject to perspective projection in a vertical direction and to orthographic projection in a horizontal direction. In a compressed and emphasized display mode, the component image is divided into pieces corresponding to respective columns. The component image is obtained by subjecting the subject to perspective projection in both vertical and horizontal directions. In a multiview compatible mode, the component image is divided into pieces corresponding to respective columns so that the same piece is provided for a plurality of adjacent columns. The component image is obtained by subjecting the subject to perspective projection in both vertical and horizontal directions.

Abstract: An autostereoscopic display device uses a converged backlight output, and the convergence is performed with a light converging arrangements (60,62) which preferentially converge light inwardly along a certain axis perpendicular to the elongate axis of the lenticular elements (11). This means that the amount of light directed at large angles sideways between the lenticular elements (11) is reduced to a minimum. This reduces the amount of light tunneling within the lenticular array and therefore improves the display output, in particular the brightness and contrast.

Abstract: The invention relates to an image display device comprising an imaging matrix, which consists of imaging elements which are arranged in a lateral manner, for example, lenticulars or a lens array, and a plurality of point elements which are disposed on a object plane and which are formed from the imaging elements in an observation chamber. In order to reduce imaging errors resulting in the image field curvature of the individual imaging elements of a large observation angle, compensation by a correction matrix, which contains a plurality of optical corrections elements, takes place. An optical correction element is associated with each individual optical imaging element. Said invention can be used, for example, in image or video display devices, such as autostereoscopic displays, multi-user-displays with sweet-spot-units and multi-view-displays, in order to image illuminating elements.

Abstract: An image display apparatus capable of switching a display mode between a directional display mode where a first image is displayed in a first viewing direction and a second image is displayed in a second viewing direction and a non-directional display mode where the same image is displayed in both the first and second viewing directions. The apparatus includes an image forming unit and an optical member. The optical member is disposed adjacent to an emitting side of the image forming unit and is used for switching the display mode. The optical member includes two light-transmitting plate members, a lens member disposed between the two plate members, a refractive-index variable medium sealed in a gap between the lens member and the two plate members, and a refractive-index adjusting unit that adjusts a refractive index of the refractive-index variable medium. in order to switch between the directional and non-directional display mode.

Abstract: An autostereoscopic viewing device switchable between a two-dimensional mode and a three-dimensional mode. The device generally includes a matrix viewing display, and a set of two lenticular networks or arrays, one of which is called a converting lenticular network or array. The lenticular networks or arrays are arranged in front of the viewing display. The converting lenticular array is designed to receive and optically process a raster or matrix image emitted by the viewing display. The autostereoscopic viewing device further includes means for varying a plurality of distances between a first lenticular array and a second lenticular array or the viewing display. The invention is useful in particular for computer displays or three-dimensional television sets.

Abstract: A 3D display device and method using a hybrid position-tracking system is provided, along with a method for displaying the 3D image. The 3D display device includes a main body, a display, a camera, a first calculation part, a gyroscope, a second calculation part, and a Kalman filter. The display provides a 3D image and the first calculation part calculates a relative posture change of the display with respect to a viewing position on the basis of the image photographed by the camera. The gyroscope is mounted in the main body to sense a change in an angular velocity of the display. The second calculation part calculates a relative posture change of the display and the Kalman filter receives the calculation results obtained by the first and second calculation parts to calculate a corrected-posture-change amount of the display.

Abstract: An image display including light emission controller provided with a transmissive portion and a shielding portion extending in a second direction intersecting with a first direction connecting the left and right eyes of an observer with each other for transmitting and blocking light irradiated from a light source respectively and capable of changing the length of the transmissive portion and the shielding portion in the first direction and a lens including at least one lens portion formed to advance the light received from the light source through the transmissive portion of the light emission controller in a prescribed direction and to extend in the second direction.

Abstract: In a method for representation of medical image information on a display medium an image representation parameter is varied dependent on the position of the observer. Superimpositions of data sets from different medical examinations are thereby displayed. The observer thus has simultaneous access to information from the medical examinations, which makes the diagnosis easier for him or her.

Abstract: A projection-type 3-D image display includes a light source, a single display element, an image shift member, a projection lens unit, and a screen unit. The display element produces an image using light emitted from the light source. The image shift member time-sequentially shifts the image. The projection lens unit enlarges and projects the time sequentially shifted image. The screen unit includes an image separation unit. The image separation unit separates the time sequentially shifted image into images for a left eye and images for a right eye. The projection-type 3-D image display can realize a 3-D image using a single projector by having the image shift member to sequentially shift the images produced by the display element.

Abstract: A method and system acquire and display light fields. A continuous light field is reconstructed from input samples of an input light field of a 3D scene acquired by cameras according to an acquisition parameterization. The continuous light is reparameterized according to a display parameterization and then prefiltering and sampled to produce output samples having the display parametrization. The output samples are displayed as an output light field using a 3D display device.

Abstract: A display device which displays a three-dimensional image includes a display panel on which a plurality of pixels is formed and a lenticular sheet disposed above the display panel and including a plurality of cylindrical lenses formed on the lenticular sheet. Pixels of the of the plurality of pixels are arranged in a matrix comprising columns and rows, and a distance between centers of a pair of pixels in adjacent columns is equal to a distance between centers of a pair of pixels in adjacent rows. An axial direction of cylindrical lenses of the plurality of cylindrical lenses coincides with a diagonal direction of the pixels.

Abstract: A digital display system is disclosed, wherein the display system generally includes a recording mechanism, such as a digital camera, a processing mechanism for processing and saving at least one image; software for interlacing the image; software for processing slides and movies comprised of multiple images; a digital display device for receiving, storing and displaying the image, and a lenticular screen overlaid upon the digital display device for viewing the interlaced images in three dimensions. A method of manufacturing a lenticular sheet is also disclosed as having as its primary steps the provision of a substantially transparent substrate material; forming a plurality of lenses on a first side of the substrate; and shaping the substrate to correspond to a display area of the display device, wherein the plurality of lenses are angled to correspond to the pixel size and pitch of the display area.

Abstract: A method for the autostereoscopic representation of images on a screen, wherein image information of separate channels for a right eye and a left eye of a user is displayed in interleaved segments on the screen, and a lens array is disposed for deflecting light emitted from the screen such that the image information of each channel is visible only for one eye of the user, including the steps of defining a channel mask, as determined by the lens array, projecting the channel mask onto the screen, thereby to assign to each pixel of the screen a correlation with at least one of the channels, storing, for each channel, and determining the contents of each pixel on the basis of its correlations with the channels.

Abstract: An liquid crystal method, system and method is provided to optimize the view-angle distribution characteristics of 2D/3D LCDs, wherein the photoactive layers, e.g., parallax, lenticular, etc, have their individual respective distances adjusted. The method also permits the adjustment of the relative prism vertex angles among the photoactive layers to further control the view-angle distribution of the light transmitted to the LDC display means. Moreover, the method, system and method provides for the enhanced, as modified by or in accordance with and as a function of both, scope and distance of human vision and vantage point in 2D/3D LCDs.

Abstract: An electrically-driven liquid crystal lens wherein electric connection between finely split electrodes and signal lines used to apply signals to the split electrodes can be accomplished using a minimal number of masks and signals can be applied to the finely split electrodes without line resistance, and a stereoscopic display device using the same are disclosed.

Abstract: A method of manufacturing a lenticular sheet having as its primary steps the provision of a substantially transparent substrate material; forming a plurality of lenses on a first side of the substrate; and shaping the substrate to correspond to a display area of a display device, wherein the plurality of lenses are angled to correspond to the pixel size and pitch of the display area. A display system is also disclosed, wherein the display systems generally includes a computer for processing, saving and playing at least one image; software for interlacing the image; software for processing slides and movies comprised of multiple images; a lenticular screen overlaid upon a video display device for viewing the interlaced images in three dimensions.

Abstract: The invention relates to stereo projection systems for displaying stereopaired images on mirror-spherical or parabolic screens and for collectively watching a stereo effect without using stereo spectacles. Said invention makes it possible to continuously dynamically superimpose the projections of the left and right picture frames of a steropair with the user's left and right eyes, respectively. Such impositions are carried out simultaneously and independently for each viewer.

Abstract: In a one-dimensional IP (vertical disparity discarding system), it is made possible to obtain a perspective projection image with no distortion or reduced distortion. A stereoscopic display device is provided with a display device including a display plane in which pixels are arranged flatly in a matrix shape; and a parallax barrier including a plurality of apertures or a plurality of lenses and being configured to control directions of rays from the pixels such that a horizontal disparity is included but a vertical disparity is not included.

Abstract: A drive method and apparatus is provided for a 2D/3D autostereoscopic display with a switchable lens array having an electrically switchable refractive index, between an array of row electrode lines and an array of column electrode lines to control the switching of the lens elements. The drive signals comprise: a row select voltage waveform (Rsw), —a column select voltage waveform (Csw), —and a common row and column de-select voltage waveform (Vbase). The waveforms each comprise a substantially square wave voltage waveform, each waveform having the same period. The three waveforms are time staggered with respect to each other with a phase shift of 2/3 or 4/3 between each waveform and each other waveform. This arrangement provides polarity inversion voltage waveforms when switching voltages are applied to the lens elements, and with maximised RMS voltage.

Abstract: An apparatus and method are provided for generating a three-dimensional image having all four physiological depth perception cues. One embodiment includes backlighting device for projecting light; a spatial light modulator for modulating light emanated by the backlighting device; a lens array having a plurality of lenses for receiving and redirecting the light; and an optional aperture screen for inhibiting unwanted light and for minimizing reflections from external lighting. Embodiments of the invention may be used to reproduce directional distribution of light from a computer-generated image, a photographically captured three-dimensional scene, or other from other sources.

Abstract: A switchable autostereoscopic display device comprising: a display panel having an array of display pixels for producing a display, the display pixels being arranged in rows and columns; an array of lens elements arranged over the display panel for directing the light output of the display pixels so as to provide a stereoscopic image, the lens elements comprising an electro-optic material whose refractive index is switchable by selective application of an electric field between a first value that maintains the light output directing function and a second value that removes the light output directing function; and electrode arrangements provided above and below the lens elements for applying the electric field across the lens elements. At least one of the electrode arrangements comprises first and second electrode layers separated by a dielectric layer, and each electrode layer comprises a plurality of parallel elongate electrodes separated by gaps.

Abstract: An autostereoscopic display includes a display having a non-luminescence area between two adjacent pixels. Each pixel includes a blue subpixel, a red subpixel, and a green subpixel. A lens sheet including a lot of lenses is configured over the display. A diffusion board is placed between the display and the lens sheet. The diffusion board has a trench disposed over the non-luminescence area between two adjacent pixels.

Abstract: A display apparatus has a switchable birefringent lens array. The display apparatus produces a substantially linearly polarised output. The lens array comprises birefringent material arranged between a planar surface of a first substrate and a relief substrate of a second substrate defining an array of cylindrical lenses. The lens array has electrodes for applying a control voltage across the birefringent material for electrically switching the birefringent material between a first mode and a second mode. In the first mode the lens array modifies the directional distribution of incident light polarised in a predetermined direction. In the second mode the lens array has substantially no effect on incident light polarised in said predetermined direction.

Abstract: An autostereoscopic display apparatus (104, 200, 301, 401, 501) is disclosed, comprising lenticular means (203, 305, 402, 502) configured to direct and control light emitted from a source (201, 302). The lenticular means comprises an array of lenticular elements (204, 306, 403, 503), said array of lenticular elements comprising a first surface facing light incident from said source and a second surface facing light emergent from said second surface. The apparatus further comprises a light-absorbing repetitive pattern (507, 517) restricting light passing through said lenticular elements to only a desired portion of said lenticular elements, said light-absorbing repetitive pattern being applied on said second surface of said lenticular means. Use of the autostereoscopic display apparatus in a 3D display and/or multi-view static or dynamic display is also disclosed.

Abstract: Provided is a highly efficient 2D-3D switchable display device. The image display device includes a display unit forming an image, and a switching visual field separation unit switching the image formed by the display unit into a 2D image or a 3D image, and comprising a lens array for separating a visual field and a liquid crystal lens controlled so as to have a refractive power offsetting or reinforcing a refractive power of the lens array.

Abstract: An autostereoscopic display device (1), includes a display panel (10), a lenticular sheet (15) and an electrically controllable diffuser (80). The electrically controllable diffuser (80) includes an optical medium (94), e.g. polyethyleneterephthalate (PET), with a structured surface (98) against an electro-optic medium (95), e.g. a small droplet polymer dispersed liquid crystal (PDLC) layer. The electro-optic material (95) refractive index is varied with an applied electric field (or zero field) and is switchable between at least (i) a value (n2) substantially matching that of the optical medium (94), which provides a substantially non-diffusing mode, hence 3D operation of the display device, and (ii) a value (n1) different to that of the optical medium (94) hence causing refraction at the structured surface (98), the structured surface (98) providing different refraction angles (?0) so as to provide an overall diffusing effect, hence 2D operation. The diffuser (80) may be provided as a stand-alone item.

Abstract: A method and apparatus for optimizing viewing distance for a stereogram system. In a stereogram, an image is held in close juxtaposition with a lenticular screen. In the invention, a data store is used to store optimum pitch values for specified viewing distances. An interdigitation program then acts on the table values and creates a mapping of interdigitated views for each viewing distance. The user can then select or specify a desired viewing distance, and the optimum mapping of views is automatically chosen for display.

Abstract: A method for searching a printing frequency to display a 3D picture includes breaking an image into strips and using NumLen lenses to form a NumLen-1 image cycle. After the NumLen-1 image cycle is formed, a quantity of images of the image cycle is defined to be dpi/lpi, where dpi is dot per inch of a printer and Ipi is lens per inch of a lenticular lens. Therefore, a quantity of the image per inch is arrived.

Abstract: In a three-dimensional image display device for displaying color three-dimensional images, a fly eye lens, a display panel, and a light source are provided in this order from the observer side. A display panel has four pixels arrayed in a (2×2) matrix correlated with one lens element of the fly eye lens. In the event that j is a natural number, a pixel magnifying projection width e in a second direction is set in a range of the following expression according to mean interpupillary distance Y of the observers. e 3 ? Y 2 × j .

Abstract: A display apparatus, frame member, and reflection suppressing member that are capable of achieving an improvement in display quality and an improvement in visibility, are provided. In a case, a reflection suppressing portion that attenuates emitted display light is formed on an annular wall portion (frame portion). The reflection suppressing portion previously suppresses undesirable display (display that is directed to a not-intended direction) which can occur due to the display light emitted from an outer periphery of a display face being reflected by the case and the like.

Abstract: A projection-type 3-D image display device includes a single display element, a polarization conversion switch, a first image shifter, a second image shifter, a projection lens unit, a mirrored light tunnel, and a screen unit. The screen unit includes an image separation unit. The single display element emits light polarized in a first polarization direction according to an input image. The polarization conversion switch time-sequentially converts the first polarization direction of the light emitted by the display element into a second polarization direction. The first image shifter transmits the light having the first polarization direction to form a first image and refracts the light having the second polarization direction to form a second image. The second image shifter faces the first image shifter and is arranged apart from the first image shifter by a predetermined interval. The projection lens unit enlarges and projects the first and second images.

Abstract: This invention provides a polarization means capable of obtaining an always clear three-dimensional image easily, correctly, and quickly and a position holding mechanism. A polarizing plate has areas for the left eye and the right eye where respective polarized lights separated by a first half wave plate enter. A second half wave plate for rotating the polarized lights in a direction opposite to that of the first half wave plate is disposed on an image display surface side for the right eye side area of the polarizing plate. A polarizing plate fixture with an arm part for holding the polarizing plate in a predetermined position is also provided.

Abstract: An observer-adaptive autostereoscopic display system (100) comprises a display device (102) having a screen for displaying an image and a shutter (204) being electronically controlled to have transparent (230) and non transparent segments (228, 232, 234) which alternate time-sequentially in synchronism with the display device (102). The shutter (204) is designed to block light that is traveling in arbitrary directions but to let pass light which goes from the display device to predetermined positions and which is bent by lenses (208-226) of a first (202) and a second grid (206) of lenses. The lenses (208-226) are disposed in the first (202) and the second grid (206) at a predetermined pitch distance which is substantially equal to a pixel width of the image.

Abstract: An apparatus includes: an image display unit including a display device having an image display surface that displays a two-dimensional image and a microlens array disposed in spaced-apart relation to the image display surface, the image display unit that displays a stereoscopic two-dimensional image by allowing the light emitted from the image display surface to form an image on an image forming plane in a space located on a side opposite to the display device with respect to the the microlens array; at least one switch; at least one illumination device that illuminates the space when the switch is turned on; and a controller that controls the display device to change the two-dimensional image displayed on the image display surface in accordance with an illuminating state of the illumination device.

Abstract: In a one-dimensional IP (vertical disparity discarding system), it is made possible to obtain a perspective projection image with no distortion or reduced distortion. A stereoscopic display device is provided with a display device including a display plane in which pixels are arranged flatly in a matrix shape; and a parallax barrier including a plurality of apertures or a plurality of lenses and being configured to control directions of rays from the pixels such that a horizontal disparity is included but a vertical disparity is not included.

Abstract: A three-dimensional image display apparatus comprising a display panel, which displays a parallel projection image corresponding to a three-dimensional image, and an array plate disposed on a front of the display panel and having pinholes arranged two-dimensionally. The display panel includes pixels arranged two-dimensionally in correspondence with the pinholes. Each of the pixels can include a first subpixel, a second subpixel, and a third subpixel. The apparatus also includes a point at which a line passing through one of the pinholes from the first subpixel intersects the three-dimensional image, a point at which a line passing through the one of the pinholes from the second subpixel intersects the three-dimensional image, and a point at which a line passing through the one of the pinholes from the third subpixel intersects the three-dimensional image being separated from one another.

Abstract: A three-dimensional rendering device may project an image on a movable display through a collimating device, which collimates the rays from the display into a narrow solid angle. The narrow solid angle may allow the rays from the display to be projected only to a viewer located at a particular position relative to the display. As the display moves, the information displayed may change to be that appropriate for the particular position, so that a three-dimensional image of the object may be perceived by the viewer as the viewer changes positions around the three-dimensional rendering device.

Abstract: A transmission type screen including a fly-eye lens having a convex shape on one side thereof and a light-shielding layer provided on an opposite side of a lens surface of the fly-eye lens and having a plurality of openings provided near each focus of lens unit cells, wherein if uniform light perpendicular to an optical axis of the lens unit cell is incident upon the lens surface, luminance on an emission side of the screen when the screen is observed from a direction inclined against the optical axis of the lens unit lens by a predetermined angle in a horizontal direction when the screen is used is larger than luminance when the screen is observed from a direction inclined by the same angle as that in the horizontal direction in a vertical direction when the screen is used.

Abstract: A 3D stereo display method and a device thereof. Two sets of shutters are disposed in a display. The shutters are complimentarily interlaced with each other. The opening/closing of the two sets of shutters are controlled by time interval concept. When the display frequency is odd frequency, one set of shutters is activated. When the display frequency is even frequency, the other set of shutters is activated. The two sets of shutters are continuously opened and closed according to the variation of the frequency so that in odd and even frequencies, the left and right eyes can respectively see independent images formed of different subpixels. Therefore, a 3D display effect is presented to bare eyes without reducing resolution.

Abstract: Digital binocular fusing apparatus places a primary image in registration with a lenticular lens to produce a secondary 3D image from the primary image. The apparatus includes a lens array, a display mounted behind the lens array and including a primary image and reference marks, a primary image orientation adjustment system for receiving registration adjustment signals to adjust the position of the primary image and the reference marks, a sensor to detect the position of the reference marks and generate position identification signals, and, a registration control for receiving the position identification signals, determining if the primary image is in registration with the lens array, and, if necessary, generating registration adjustment signals and transmitting the registration adjustment signals to the primary image orientation adjustment system.

Abstract: The present invention discloses a stereoscopic image display apparatus for which an image display unit can be freely selected, and in which crosstalk is suppressed even if a transmissive image display unit is used. The stereoscopic image display apparatus according to the present invention includes an image display unit in which pixel groups including pixels that display images corresponding to observation positions respectively are arranged cyclically; a lenticular array which substantially condenses light rays from the respective pixels at the predetermined observation positions and which is constituted by a plurality of horizontal lens lines arranged vertically, each of which is formed by a plurality of cylindrical lenses horizontally arranged at a predetermined cycle. And the apparatus includes a limiting member that limits light rays so that rays from a predetermined horizontal pixel lines may reach only the horizontal lens line having the same horizontal positions of cylindrical lenses.

Abstract: A stereoscopic image display apparatus in accordance with the present invention solves a problem with a conventional multi-view stereoscopic image display apparatus in that the resolution of each parallax image deteriorates as the number of provided parallax images increases. The inventive stereoscopic image display apparatus forms a plurality of images for right and left eyes in observation regions for the observer's right and left eyes to enable the observer to obtain a stereoscopic view. At the same time, a region where no images are formed is provided between the right eye and left eye observation regions, because no actual observation is carried out in the region. This makes it possible to reduce the total number of parallax images without changing the number of actually observed parallax images, thus achieving a higher resolution of each parallax image actually observed.

Abstract: A high contrast lenticular lens sheet that can improve the brightness of an image and the angle of visibility. When it is assumed that P represents the pitch of the lens element and H represents the width of the black stripe portion as viewed in a cross section perpendicular to the lens element, the difference F in height between the black stripe portion and the lens element is set to have a range that is expressed by the inequality: 0.098 P?F?(P?H)/2 tan(?/3). Simultaneously, the width B as measured from an apex portion of the black stripe portion in regard to a colored portion on a side wall of the black stripe portion is set to have a range that is expressed by the inequality: 0.30 F?B?0.89 F.

Abstract: An autostereoscopic lenticular screen has a lenticular screen held in juxtaposition with a display surface. The lenticular screen has lenticules disposed on one side thereof and a smooth surface on the other side thereof. In one aspect of the invention, a closed chamber is formed over the lenticules. In order to deactivate the refractive properties of the lenticular screen, and thereby view the display in a planar mode, an optically clear fluid, such as a fluoropolymer, is introduced into at least a portion of the closed chamber. In order to activate the refractive properties of the lenticular screen, and thereby view the display in a stereoscopic mode, the optically clear fluid is removed from the closed chamber. In a particularly preferred arrangement, the lenticular screen is oriented such that the lenticules face inwardly toward the display screen, and the smooth surface of the lenticular screen is coated with an antireflective material.

Abstract: Parallax images corresponding to a plurality of different view points are each divided into predetermined stripe images, a synthetic parallax image is synthesized from the stripe images, and display light, from stripe images corresponding to one view point of the synthetic parallax image on the image display element displaying the synthetic parallax image, is guided to a mask member having a mask pattern with predetermined openings and shields by a second optical system placed in front of the image display element. The display light passing through the openings of the mask member is condensed to a position corresponding to the view point on an observation surface a predetermined distance apart, by a first optical system, whereby an observer is permitted to stereoscopically observe image information displayed on the image display element.

Abstract: A stereoscopic image display apparatus for displaying a stereoscopic image, which is obtained by alternately arranging stripe parallax images R and L corresponding to the right and left eyes, in a window includes a parallax barrier for a stereoscopic vision. When the display position of a window including a stereoscopic image which is set after the window is opened or moved and the positions of the right-eye and left-eye stripes of a parallax barrier have a relationship which does not allow a proper stereoscopic vision, the display position of the window is moved by one stripe in the horizontal direction.

Abstract: An image-taking apparatus is disclosed which is easy to use and is capable of a search for a person or walking support without fail. The image-taking apparatus comprises a compound eye optical unit, an image-pickup device which photoelectrically converts an object image formed by the compound eye optical unit, and a transmission unit which transmits image information provided by using the image-pickup device. The compound eye optical unit and the image-pickup device are held by a hold member which is provided with an attachment member for attachment to a user.