| 主权项 |
1. An autostereoscopy apparatus, comprising:
a projection screen with a light receiving surface that is horizontally retroreflective and vertically diffusive; a projector assembly comprising at least two projectors arranged side-by-side such that projection lenses of the projectors are horizontally aligned in a row; and a controller selectively operating the projectors to project at least two differing point-of-view images toward the light receiving surface of the projection screen, wherein the projection screen comprises a bottom layer including a retroreflective film that is retroreflective in the horizontal direction and a top layer covering the bottom layer, the top layer including a sheet of lenticular material arranged for vertical diffusing, wherein longitudinal axes of lenticules of the lenticular material extend parallel to the horizontal, whereby the lenticules provide the vertical diffusing of the projection screen, wherein the retroreflective film comprises a brightness enhancement film arranged to provide retroreflection, using total internal reflection, in a single direction that is orthogonal to a direction of diffusing provided by the lenticules of the lenticular material of the top layer, wherein the projection screen is configured with the light receiving surface providing a cylindrical display, wherein the projectors of the projector assembly are arranged in an arcuate pattern about the exterior of the cylindrical display to project the differing point of views toward the light receiving surface, whereby the light receiving surface faces outward from the center of the cylindrical display, wherein adjacent pairs of the horizontally aligned projectors are spaced apart a distance in the range of 2 to 3 inches, and wherein each of the adjacent pairs of the horizontally aligned projectors are operated by the controller to project, in the differing point-of-view images, a left eye image and a right eye image, respectively, to a viewer viewing the light receiving surface. |
