发明名称 |
Back-projection apparatus using mobile projection tent, has matt screen made of plastics, and dark contrast frame comprising tent material or plastics |
摘要 |
<p>The front part of projection tent comprises a matt screen made of plastics, and a dark contrast frame made of tent material or plastics. The projection tent comprises a light-proof enclosure around the beam path, the enclosure tapering to an opening. The projection tent may include adjustable legs and guy ropes.</p> |
申请公布号 |
DE202005000576(U1) |
申请公布日期 |
2005.03.31 |
申请号 |
DE20052000576U |
申请日期 |
2005.01.14 |
申请人 |
HEROLD FRANK |
发明人 |
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分类号 |
G03B21/12;G03B21/62;(IPC1-7):G03B21/12 |
主分类号 |
G03B21/12 |
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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