The present invention provides a beaded rear projection screen that has performance properties such as gain and viewing angle that can be tuned by using a mixture of two or more types of microbeads having different refractive indices and varying the mixture. The present invention further provides methods of selecting microbeads and the construction of the screen so that transmission through the screen can remain sufficiently high throughout the range of tunability.

A invenção atual fornece uma tela traseira frisada da projeção que tenha propriedades do desempenho tais como o ângulo do ganho e da visão que pode ser ajustado usando uma mistura de dois ou mais tipos de microbeads que têm índices refractive diferentes e que variam a mistura. A invenção atual mais adicional fornece métodos de selecionar microbeads e a construção da tela de modo que a transmissão através da tela possa remanescer suficientemente elevada durante todo a escala do tunability.

 
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