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Electroacoustic transducer comprising a memberane with a middle area comprising stiffening grooves

  • US 20060070796A1
  • Filed: 10/31/2003
  • Published: 04/06/2006
  • Est. Priority Date: 11/21/2002
  • Status: Active Grant
First Claim
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1. A membrane (20) for an electroacoustic transducer (1), which membrane (20) is designed to be capable of vibration with respect to a membrane axis (5), and which has a first membrane side (20a) and a second membrane side (20b), and which has a middle area (50), wherein a central cup-shaped depression (52) is present in the region of the membrane axis (5), which depression (52) is bounded by a cup bottom wall (52a) and is open towards the first membrane side (20a), wherein the membrane (20) has stiffening grooves (54, 55, 56, 57) in its middle area (50) which stiffening grooves (54, 55, 56, 57) extend substantially parallel to radial directions, and wherein at least two stiffening grooves (55, 56) of said stiffening grooves (54, 55, 56, 57) extend up to the depression (52).

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