发明名称 omitted
摘要 A high clearness sound absorbing screen is provided to perform absorption and extinguishment of sound energy on a single screen, thereby being used as a background screen of a concert, an auditorium, and a stage back ground screen. A high clearness sound absorbing screen includes an imaging side, a frame(3), fixing pins(4), and a vibration plate(5). A front surface of the screen is an elastic permeating side formed by a thin film with permeability and elasticity, and a rear surface is an imaging side formed by a thin film with a diffusing function to form an image of a projector. The fixing pins are arranged at the inner side of the frame at regular intervals.
申请公布号 KR101255376(B1) 申请公布日期 2013.04.17
申请号 KR20070006921 申请日期 2007.01.23
申请人 发明人
分类号 G03B21/56;G03B21/00;G03B21/54;G03B21/60 主分类号 G03B21/56
代理机构 代理人
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