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 stereoscopic image display apparatus comprising an image display unit that displays combined images formed by combining three different pixels groups in a horizontal direction, which correspond to three different viewpoint images, respectively; a mask member with a plurality of aperture portions that guides light from each pixel group to a corresponding viewpoint; a lenticular lens array arranged between the image display unit and the mask member; and a switching control circuit that switches arrangement of the aperture portions in the mask member in synchronization with switching of the combined images.

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: In a three-dimensional image display apparatus provided with a shading mask with a minute aperture array in front of a color display device, the minute apertures are provided with color filters, a setting is provided so that the visual angles between the respective centers of the red-light transmitting part, green-light transmitting part, and blue-light transmitting part of the color filters become equal, in an identical parallax image pixel region, to the visual angles between the respective centers of the red, green, and blue sub-pixels of the color display device, the respective red, green, and blue sub-pixels are made so as to be always displayed in a lighted condition at a fixed area ratio, thus color reproduction wherein brightness ratio of the three primary colors in respective parallax image pixels is maintained at an appointed value is carried out.

Abstract: It is an object of the present invention to provide a stereoscopic image displaying method and a stereoscopic image displaying apparatus using the same, which are capable of excellently observing a stereoscopic image.

Abstract: A stereoscopic image display apparatus which can reproduce two-dimensional images of high resolution corresponding to a number of viewpoints, for displaying a three-dimensional image, by using a minimized number of light sources. The stereoscopic image display apparatus comprises a light deflection member which has a deflection element deflecting a light beam from a light source unit to form a convergence point, and a beam scanning device which two-dimensionally scans the light beam from the light source unit with respect to the light deflecting member. The light deflection member is movable. The movement of the light deflection member is preformed in synchronization with modulation of the light beam by the light source unit and the scanning of the light beam by the beam scanning device.

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: An object of the invention is to provide a stereoscopic image display device, which does not generate a non-display region when an observer observes each parallax image despite being a stereoscopic image display device for displaying a multi-visual point image, and has little reduction of the image quality. The stereoscopic image display device of the present invention has an image display means for displaying the.synthesized image obtained by synthesizing a plurality of parallax images, an aperture portion, a light-shielding portion, and horizontal directional control means for giving a directivity toward each of the desired directions to the image information light including the information on the parallax image radiated from the image display means, wherein longitudinal enlarging means for enlarging longitudinally only the light beam having passed the aperture of the horizontal directional control means in directions is disposed in front of the horizontal directional control means.

Abstract: A workflow server is provided with, in association with a user management table 100 for managing work items for each user, a list 130 of substitute users for indicating a substitute user for each work or process and a list 140 of users in charge who designates the user as a substitute. When a client terminal user selects a specific user among the users in charge on the list 130, the workflow server checks the power of substitute by referring to the list 140 of substitute users for the selected user, thereby to allow the client terminal user to process a predesignated unprocessed work item instead of the selected user in charge.

Abstract: A stereoscopic image display apparatus is disclosed with which the discontinuities in the parallax images viewed from any viewing region can be alleviated, and which is capable of performing high-quality stereoscopic display. The stereoscopic image display apparatus includes a display device synthetically displaying a plurality of parallax images by different pixels, and an optical separating member in which a plurality of state-selective regions are arranged, which have properties of selectively transmitting light with different states. The optical separating member directs, of the light from the pixels, the light transmitted through the state-selective regions to a different viewing region for each parallax image.

Abstract: A stereoscopic image display apparatus which can reproduce two-dimensional images of high resolution corresponding to a number of viewpoints, for displaying a three-dimensional image, by using a minimized number of light sources. The stereoscopic image display apparatus comprises a light deflection member which has a deflection element deflecting a light beam from a light source unit to form a convergence point, and a beam scanning device which two-dimensionally scans the light beam from the light source unit with respect to the light deflecting member. The light deflection member is movable. The movement of the light deflection member is preformed in synchronization with modulation of the light beam by the light source unit and the scanning of the light beam by the beam scanning device.

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 that has low degradations of image quality and can perform high-resolution display is discribed. The stereoscopic image display apparatus includes an image display unit displaying a combined image formed by combining a plurality of viewpoint images. In addition, this includes a mask member having a plurality of aperture portions to pass only rays of light, directing to a viewpoint corresponding to a viewpoint image that each pixel groups displays. Moreover, this also includes a switching control circuit that makes the image display unit display a plurality of combined images, where arrangement of the pixel groups are mutually different, with switching the plurality of combined images, and that switches arrangement aperture portions in the mask member with synchronizing with the switching of these combined images.

Abstract: The present invention discloses a multiviewpoint stereoscopic image display apparatus for which an image display unit can be freely selected without limiting to a transmissive image display unit, and in which crosstalk doesn't arise. This stereoscopic image display apparatus includes an image display unit in which a plurality of horizontal pixel lines is provided in a vertical direction, and pixel groups including pixels that display images corresponding to a plurality of observation positions respectively are arranged cyclically. And the apparatus also includes a mask member in which apertures to pass only a ray having predetermine directionality from the pixels are formed. Then, the apparatus includes a limiting member that limits rays from a predetermined horizontal pixel line may reach only horizontal aperture lines having the apertures whose horizontal positions are the same.

Abstract: In a three-dimensional image display apparatus provided with a shading mask with a minute aperture array in front of a color display device, the minute apertures are provided with color filters, a setting is provided so that the visual angles between the respective centers of the red-light transmitting part, green-light transmitting part, and blue-light transmitting part of the color filters become equal, in an identical parallax image pixel region, to the visual angles between the respective centers of the red, green, and blue sub-pixels of the color display device, the respective red, green, and blue sub-pixels are made so as to be always displayed in a lighted condition at a fixed area ratio, thus color reproduction wherein brightness ratio of the three primary colors in respective parallax image pixels is maintained at an appointed value is carried out.

Abstract: An eye fundus camera includes mainly an illumination optical system, a photography optical system, a photography switch, a controller, and a display. The photography optical system includes a first filter and a second filter. The first filter exhibits a spectral characteristic of intercepting light of wavelengths falling within the first wavelength band and transmitting light of wavelengths falling within a second wavelength band of longer wavelengths than the first wavelength band. The second filter exhibits a spectral characteristic of transmitting light of wavelengths falling within a wavelength band which covers the second wavelength band and includes part of the first wavelength band and which is therefore wider than the second wavelength band including the wavelengths of the light transmitted by the first filter. At least the first filter can be inserted into an optical path and displaced therefrom.

Abstract: It is an object of the present invention to provide a stereoscopic image displaying method and a stereoscopic image displaying apparatus using the same, which are capable of excellently observing a stereoscopic image.

Abstract: Parallax images corresponding to a plurality of different view points are divided each 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: The present invention relates to an ophthalmologic phototaking apparatus having an illuminating system for illuminating an eye to be examined, a phototaking system for phototaking the image of the eye to be examined illuminated by the illuminating system, a digital signal converting system for converting the image of the eye to be examined phototaken by the phototaking system into a first data format of digital image data, and a data format converting system for converting the first data format of digital image data into a second data format of digital image data.