发明名称 |
Projection screen with sound radiating segments |
摘要 |
The projection screen (10) has a projection plane (30) formed of segments (11). At least one segment is a sound radiator segment (11') for emitting sound waves from the projection plane. The segments are connected to each other by connecting elements on their edges. The segments are formed of a core layer and a covering layer. The low-frequency segments are arranged in the middle of the projection screen.
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申请公布号 |
DE19821624(A1) |
申请公布日期 |
1999.11.18 |
申请号 |
DE19981021624 |
申请日期 |
1998.05.15 |
申请人 |
NOKIA (DEUTSCHLAND) GMBH |
发明人 |
BACHMANN, WOLFGANG;KRUMP, GERHARD;REGL, HANS-JUERGEN |
分类号 |
G03B21/56;H04R7/04;(IPC1-7):G03B21/56;G03B21/54;H04R9/06 |
主分类号 |
G03B21/56 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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