Abstract: A method by which optical filter structures may be applied onto a substrate that is transparent to light at least in the visible wavelength range suitable for a barrier filter. In such a method, an adhesive is applied onto the substrate; then, a photographic film comprising a base film and a photographic emulsion layer applied on it is brought into contact with the adhesive. The optical filter structures are impressed in the photographic emulsion layer by exposure, development and fixation. The side of the film brought into contact with the adhesive is the one that bears the photographic emulsion layer. The adhesive is then spread between film and substrate by means of a roller rolling across the film at a specified contact pressure and a specified feed rate of the roller and thus pressing the film against the substrate. A permanent joint between substrate and photographic emulsion layer is then established by the curing of the adhesive.

Abstract: The invention relates to a method for orienting an optical element (e. g. a parallax barrier screen or lenticular screen) on a screen comprising pixels x(i, j) in a raster composed of lines (i) and columns (j) in order to produce a screen for three-dimensional representation. In said method, especially a test pattern is presented which consists of various views A(k), wherein k=1, . . . , n, and n>1. The test pattern comprises at least two first straight lines that are located in different horizontal positions in the n>1 views A(k) as well as at least two second straight lines which each extend parallel to one of the first straight lines and are located in at least the same horizontal positions in the n>1 views A(k). The method according to the invention can be carried out quickly and with high accuracy and is therefore suitable for industrial use to produce screens for three-dimensional representation.

Abstract: The invention relates to an arrangement for the display of images perceivable in three dimensions, comprising an image generator provided with a great number of picture elements (pixels) (?ij) arranged in a grid of rows (j) and columns (i), the pixels (?ij) displaying bits of partial information from at least two views (Ak) (k=1 . . . n, n?2) of a scene or object in a two-dimensional, essentially periodic combination structure. The total number of rows and/or columns of the respective period of the said two-dimensional, essentially periodic combination structure for the bits of partial information from at least two views (Ak) (k=1 . . . n, n?2) on the grid of rows (j) and columns (i) comprises a number of pixels (?ij) that is not divisible by 2.

Abstract: An autostereoscopic projection arrangement, comprising at least one projector and at least one filter array, in which arrangement bits of partial information from views of a scene or object are projected by the projector/projectors onto a projection screen, where these bits of partial information are rendered on image rendering elements and, having passed one or several of the filter arrays are made visible to at least one observer, and in which, as regards the propagation direction of the bits of partial information, the image rendering elements correspond with correlated filter elements in such a way that an observer will see predominantly bits of partial information from a first selection of views with one eye and predominantly bits of partial information from a second selection of views with the other eye, and thus will have a spatial impression.

Abstract: A method by which optical filter structures may be applied onto a substrate that is transparent to light at least in the visible wavelength range suitable for a barrier filter. In such a method, an adhesive is applied onto the substrate; then, a photographic film comprising a base film and a photographic emulsion layer applied on it is brought into contact with the adhesive. The optical filter structures are impressed in the photographic emulsion layer by exposure, development and fixation. The side of the film brought into contact with the adhesive is the one that bears the photographic emulsion layer. The adhesive is then spread between film and substrate by means of a roller rolling across the film at a specified contact pressure and a specified feed rate of the roller and thus pressing the film against the substrate. A permanent joint between substrate and photographic emulsion layer is then established by the curing of the adhesive.

Abstract: The invention relates to a method for fabricating objects with a structured optically effective surface for fabricating lenticular screens. The method may comprise: applying a liquid plastic layer, consisting of a plastic that will cure by the input of energy, onto a substrate, smoothing the surface of the liquid plastic layer, inputting energy into the plastic, wherein the amount of energy to be applied per unit of time is specified for different positions as a function of the structure height to be produced in these positions, so that, as a result of the energy input, different quantities of still uncured and already cured solidified plastic exist in different positions of the surface, and removing the uncured plastic whereby the remaining, cured plastic defines an optically effective structure.

Abstract: The invention relates to arrangements for spatial display, and in particular to such arrangements that, by means of wavelength or gray level filter arrays, present an image visible in three dimensions to one or several observers without the use of auxiliary aids such as glasses. In such arrangements, an increased brightness of the 3D display is achieved by means of the arrangement of transparent filters on the filter array according to the invention.

Abstract: The invention relates to an autostereoscopic projection arrangement, comprising at least one projector (4) and at least one filter array (F1, F2), which has a multitude of filter elements arranged in columns and rows, in which arrangement bits of partial information from views of a scene or object are projected by the projector/the projectors (4) onto a projection screen (3), where these bits of partial information are rendered on image rendering elements and, having passed one or several of the filter arrays (F1, F2), are made visible to at least one observer (5), and in which, as regards the propagation direction of the bits of partial information, the image rendering elements correspond with correlated filter elements in such a way that an observer (5) will see predominantly bits of partial information from a first selection of views with one eye and predominantly bits of partial information from a second selection of views with the other eye, and thus will have a spatial impression.

Abstract: The invention relates to methods and arrangements for unaided three-dimensionally recognizable representation by a method for three-dimensionally recognizable representation, in which individual image elements (?ij) are simultaneously made visible, the image elements (?ij) reproducing partial information from several views (Ak (k=1 . . . n)) of the scene/object. Directions of propagation are predefined for the light emitted by the image elements (?ij) with the aid of a structural plate. For this purpose, the structural plate includes a plurality of optical elements that are arranged in sequences. According to the invention, the mean geometrical distance (p?) between two adjacent sequences of light-transmitting optical elements on the structural plate meets the condition p?=p, wherein p=G*sin (0.017 degrees), G representing four times the diagonal length of the image element (?ij) PO raster.

Abstract: The invention relates to a method and an arrangement for spatial display, in particular to a display that can be perceived in three dimensions simultaneously by several viewers without viewing aids, also known as autostereoscopic visualization. With the invented method, bits of partial information from different views A(k) with k=1, . . .

Abstract: The invention relates to an arrangement for the display of images perceivable in three dimensions, comprising an image generator provided with a great number of picture elements (pixels) (?ij) arranged in a grid of rows (j) and columns (i), the pixels (?ij) displaying bits of partial information from at least two views (Ak) (k=1 . . . n, n?2) of a scene or object in a two-dimensional, essentially periodic combination structure. The invention also includes one or several arrays of a great number of wavelength or gray level filters arranged in rows (q) and columns (p) and configured as filter elements (?pq), part of which are transparent to light of specified wavelength ranges, while the remaining part are opaque to light. These filter elements are arranged (in viewing direction) either in front of or behind the image generator with the pixels (?ij).

Abstract: A method for the orientation of a parallax barrier screen on a display screen with pixels x(ij) in a pattern of rows (i) and columns (j) for the production of a display screen for three-dimensional representation. Particularly, a test image is presented comprising various views A(k) where k=1, . . . , n and n=6 or n=7, wherein the test image comprises at least two first straight lines having two different directions of extension from one another, said lines being disposed in different horizontal positions in the n=6 or n=7 views A(k), wherein the test image comprises at least two second straight lines that are each oriented parallel to one of the first straight lines and that are disposed at least at the same horizontal positions in the n=6 or n=7 views A(k). The method according to the invention may be performed quickly and with a high degree of accuracy and is therefore suitable for industrial use for the production of display screens for three-dimensional representation.

Abstract: A method for orienting a parallax barrier screen on a display screen with picture elements x(i,j) in a grid comprising rows i and columns j for the purpose of producing a display screen for three-dimensional representation. This method includes the steps of: temporary application of a positioning marker, observation of the positioning marker by means of a camera, relative orientation of the display screen, removal of the positioning marker, positioning of the parallax barrier screen in front of the picture area of the display screen display of a test picture, which comprises various views, where k=1, . . . , n and n=6 or n=7, on the picture elements x(i,j) with rows i and columns j, observation of the displayed test picture through the parallax barrier screen by the camera, orientation of the parallax barrier screen in front of the display screen.

Abstract: The invention relates to the field of spatial representation, in particular to the spatially perceptible representation without auxiliary means for a plurality of observers at a time, the so-called autostereoscopic visualization. It is the object of the invention to create a possibility for autostereoscopic representation, allowing an adjustment of the observation distance independently of constraints for the configuration of the distance from the image display device to the optical element, for example a barrier or lenticular lens. This object is achieved by a method for spatial representation, in which partial image information of different views A(k), wherein k=1, . . .

Abstract: The invention relates to a method for orienting an optical element (e. g. a parallax barrier screen or lenticular screen) on a screen comprising pixels x(i, j) in a raster composed of lines (i) and columns (j) in order to produce a screen for three-dimensional representation. In said method, especially a test pattern is presented which consists of various views A(k), wherein k=n, and n>1. The test pattern comprises at least two first straight lines that are located in different horizontal positions in the n>1 views A(k) as well as at least two second straight lines which each extend parallel to one of the first straight lines and are located in at least the same horizontal positions in the n>1 views A(k). The method according to the invention can be carried out quickly and with high accuracy and is therefore suitable for industrial use to produce screens for three-dimensional representation.

Abstract: A method for the orientation of a parallax barrier screen on a display screen with pixels x(ij) in a pattern of rows (i) and columns (j) for the production of a display screen for three-dimensional representation. Particularly, a test image is presented comprising various views A(k) where k=1, . . . , n and n=6 or n=7, wherein the test image comprises at least two first straight lines having two different directions of extension from one another, said lines being disposed in different horizontal positions in the n=6 or n=7 views A(k), wherein the test image comprises at least two second straight lines that are each oriented parallel to one of the first straight lines and that are disposed at least at the same horizontal positions in the n=6 or n=7 views A(k). The method according to the invention may be performed quickly and with a high degree of accuracy and is therefore suitable for industrial use for the production of display screens for three-dimensional representation.

Abstract: The invention relates to the field of spatial representation, particularly to images which are spatially perceivable for simultaneous multiple viewers without auxiliary devices so-called autostereoscopic visualization. The invention addresses the problem of creating a form of autostereoscopic representation based on barrier technology in order to achieve an improved perceptibility for multiple simultaneous viewers. This problem is solved by a method for spatial representation wherein image section data of different viewpoints A(k), where k=1, . . . , n and n=6 or n=7, are made visible on a grid of image elements x(i,j), and at least one parallax barrier screen containing alternating opaque and transparent sections is placed at a distance before or behind the grid of image elements x(i,j).

Abstract: The invention relates to an autostereoscopic projection arrangement, comprising at least one projector (4) and at least one filter array (F1, F2), which has a multitude of filter elements arranged in columns and rows, in which arrangement bits of partial information from views of a scene or object are projected by the projector/the projectors (4) onto a projection screen (3), where these bits of partial information are rendered on image rendering elements and, having passed one or several of the filter arrays (F1, F2), are made visible to at least one observer (5), and in which, as regards the propagation direction of the bits of partial information, the image rendering elements correspond with correlated filter elements in such a way that an observer (5) will see predominantly bits of partial information from a first selection of views with one eye and predominantly bits of partial information from a second selection of views with the other eye, and thus will have a spatial impression.

Abstract: The invention relates to an autostereoscopic projection arrangement, comprising at least one projector (4) and at least one filter array (F1, F2), which has a multitude of filter elements arranged in columns and rows, in which arrangement bits of partial information from views of a scene or object are projected by the projector/the projectors (4) onto a projection screen (3), where these bits of partial information are rendered on image rendering elements and, having passed one or several of the filter arrays (F1, F2), are made visible to at least one observer (5), and in which, as regards the propagation direction of the bits of partial information, the image rendering elements correspond with correlated filter elements in such a way that an observer (5) will see predominantly bits of partial information from a first selection of views with one eye and predominantly bits of partial information from a second selection of views with the other eye, and thus will have a spatial impression.

Abstract: An autostereoscopic projection arrangement, comprising at least one projector and at least one filter array which has a multitude of filter elements arranged in columns and rows, in which arrangement bits of partial information from views of a scene or object are projected by the projector(s) onto a projection screen, where there bits of partial information are rendered on image rendering elements and, having passed one or several of the filter arrays, are made visible to at least one observer, and in which, as regards to propagation direction of the bits of partial information, the image rendering elements correspond with correlated filter elements in such a way that an observer will see predominantly bits of partial information from a first selection of views with one eye and predominantly bits of partial information from a second selection of views with the other eye, and thus will have a spatial impression.