HIGH-CONTRAST IMAGE PROJECTING DEVICE AND HIGH-CONTRAST IMAGE PROJECTING SCREEN

摘要

PURPOSE: To realize a high-contrast image projecting device capable of projecting an image with sufficient contrast even in a bright room by efficiently projecting an optical image projected from a set fixed direction. ;CONSTITUTION: Light projected from a projector and made incident from a direction shown by an arrow 14 is condensed by a lens array 11 and focused on or near a reflector 13. The condensed light is reflected by the reflector 13, transmitted through one lens out of the lens array 11 (a lens one under the lens on which the light is made incident) again, and projected in a direction shown by an arrow 15 (a main direction, and the light advances also in another direction, then it shows directivity). By projecting the optical video by a video projector projected from the fixed direction in the set direction, the contrast of the projected image is made high. This is because the light only from the direction of the projected optical video straight advances toward an observer and the light other than the above light does not straight advance toward the observer.;COPYRIGHT: (C)1995,JPO