| 摘要 |
PROBLEM TO BE SOLVED: To provide a curved rear face projection screen having a central angle larger than 180°, such as cylindrical or a dome shaped screen of a winding type.SOLUTION: A screen includes a first layer and a second diffusion layer provided on the first layer. The second diffusion layer is a synthetic resin layer, and includes an optical absorption material and optical diffusion particles embedded in a resin material. It is adjusted that a product of an absorption coefficient and thickness is in a range of 0.1 to 2. The second diffusion layer, which is a synthetic resin layer, may be applied by spraying. |
