Multi-screen projector

摘要

Unit projectors whose number is nxm are arranged in n rows and m columns like a matrix. Unit screens whose number is nxm are arranged so that they as a whole form an enormous transmissive screen. Each unit screen is composed of the three layers of a front sheet on a Fresnel sheet on a re-inforcing sheet facing an observer. A front sheet is provided with the shape having a one-dimensional curvature which causes the peripheries of the front sheet and a re-inforcing sheet to be apart from each other when the center of the front sheet is brought in touch with that of the re-inforcing sheet in the unloaded state. Wires smaller in diameter than the pixel size are connected to the left and right sides of the front sheet, springs provide the wires with tension with support members as their support, and the force of the springs is thus provided by way of the wires for the front sheet so that the left and right sides of the front sheet are pressed on the re-inforcing sheet by way of the Fresnel sheet. The boundary part between the unit screens is reduced into a minimum.