发明名称 HIGH CLEARNESS SOUND ABSORBING SCREEN HAVING A HIGH REFLECTING FUNCTION OF INCIDENT RAY AND HIGH CLEARNESS PERMEATION FUNCTION
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 KR20080005054(A) 申请公布日期 2008.01.10
申请号 KR20070006921 申请日期 2007.01.23
申请人 CHOI, HAE YONG 发明人 CHOI, HAE YONG
分类号 G03B21/56;G03B21/00;G03B21/54;G03B21/60 主分类号 G03B21/56
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