| 摘要 |
Proposed herein is a rear projection screen for use with a single-light-source projector, having no loss of imaging light and scarcely causing glaring. The rear projection screen is a combination of two or more optical members in the form of sheets or windable films, capable of transmitting, diffusing, or condensing light. In this rear projection screen, the light diffusivity in the vertical direction of a light-diffusing element (a light-diffusing layer and/or an embossed surface) that is situated on the viewer side of the viewer-side outermost optical element of one, or two or more optical elements that comprise lenses or prisms for diffusing light in the horizontal and/or vertical direction is higher at the center portion of the screen than at the upper and/or lower edge portion of the screen.
|
