Abstract
We devised and developed a novel directive projection screen for applications such as personal use, small group meeting, automotive pillar, and near‐eye. This screen reflects and diffuses incident light at an angle Δθview around a direction deviated by θview from the direction of the projector. We realized the screen by employing a hollow cube corner retroreflector (CCR). The bottom surface of the CCR was tilted by θview/2 to change the direction of the reflected light by θview from the retro‐reflection direction. Furthermore three side surfaces of the CCR (D‐CCR) were curved to diffuse the light within a designed angle (θview ±Δθview/2). We simulated a D‐CCR with θview=10° and Δθview=16°, i.e., the viewing angle for a single D‐CCR, 10°±8°, and fabricated a prototype. We verified closely the desired characteristics in which an optical gain of 16 was obtained.
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