发明名称 AN OPTICAL ELEMENT SCREEN
摘要 <p>A projection screen is provided which includes a diffuser (24) having a first side and a second side and an integral optical element (22) on the first side. A front surface layer (26) is disposed on the second side of the diffuser. The front surface layer (26) is laminated to the second side of the diffuser.</p>
申请公布号 WO2000052527(A1) 申请公布日期 2000.09.08
申请号 US2000005211 申请日期 2000.02.29
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