Invention Grant
US07650006B2 Method to generate a plane acoustic wave front, a plane wave channel, a loudspeaker construction and a linear loudspeaker array
有权
生成平面声波前方，平面波通道，扬声器结构和线性扬声器阵列的方法
- Patent Title: Method to generate a plane acoustic wave front, a plane wave channel, a loudspeaker construction and a linear loudspeaker array
- Patent Title (中): 生成平面声波前方，平面波通道，扬声器结构和线性扬声器阵列的方法
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Application No.: US11117737Application Date: 2005-04-29
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Publication No.: US07650006B2Publication Date: 2010-01-19
- Inventor: Mika Isotalo
- Applicant: Mika Isotalo
- Applicant Address: FI Lieto
- Assignee: Aura Audio Oy
- Current Assignee: Aura Audio Oy
- Current Assignee Address: FI Lieto
- Agency: Kubovcik & Kubovcik
- Priority: FI20040623 20040430
- Main IPC: H04R1/20
- IPC: H04R1/20
Abstract:
A method and a loudspeaker construction (10), in which loudspeaker construction spherical acoustic wave fronts emitted by the diaphragms (12) of speaker elements (11) are transformed into a uniform, planar acoustic wave front. The loudspeaker construction (10) comprises a plane wave channel (20), in the surface (26) of which plane wave channel directed towards the diaphragm (12) there are adjacent sound inlet apertures (24) for transmitting acoustic waves into ducts (23) and, on the opposite side (22) of the plane wave channel, there are outlet apertures (25) for transmitting acoustic waves from the ducts into a horn portion (30). The ducts (23) taper so that the width (B) of the outlet apertures located in a row on the side of the horn portion is less than half the diameter (D) of the diaphragm.
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