发明授权
US08184832B2 Electrostatic loudspeaker capable of dispersing sound both horizontally and vertically 有权
静音扬声器能够水平和垂直地分散声音

  • 专利标题: Electrostatic loudspeaker capable of dispersing sound both horizontally and vertically
  • 专利标题(中): 静音扬声器能够水平和垂直地分散声音
  • 申请号: US11734411
    申请日: 2007-04-12
  • 公开(公告)号: US08184832B2
    公开(公告)日: 2012-05-22
  • 发明人: Murray R. Harman
  • 申请人: Murray R. Harman
  • 代理机构: Miltons IP/p.i.
  • 代理商 Sheema Khan
  • 主分类号: H04R25/00
  • IPC分类号: H04R25/00
Electrostatic loudspeaker capable of dispersing sound both horizontally and vertically
摘要:
An acoustic transducer, specifically an electrostatic loudspeaker (ESL) providing curvature in two directions for improved dispersion of sound waves. The compound curvature also provides a virtual focus of the propagated sound waves for accurate reproduction of musical program material recorded with standard single-point microphones. The highly directional nature of high frequency sound waves requires that a flat or cylindrical electrostatic transducer must be physically tall to allow a listener to either recline or stand. The two-axis curved structure enables a compact form of ESL to be realized, including bookshelf type loudspeakers whereas all known commercial units are comparable in height to that of a human listener. The individual curved ESL panels can also be readily combined to create larger transducer assemblies including omni-directional units. A preferred stator panel hole-geometry is included for improved high voltage operation of coated perforated metal stator panels, and methods of forming the metal panel are described. The artistic nature of the two-dimensionally curved electrostatic transducer also lends itself to other non-traditional forms such as integration into lighting fixtures and other such architectural uses.
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