发明授权
- 专利标题: Planar voice coil loudspeaker
- 专利标题(中): 平面声音线圈扬声器
-
申请号: US25138872申请日: 1972-05-08
-
公开(公告)号: US3829623A公开(公告)日: 1974-08-13
- 发明人: WILLIS J , URQUHART PULLEN D
- 申请人: RANK ORGANISATION LTD
- 专利权人: Rank Organisation Ltd
- 当前专利权人: Rank Organisation Ltd
- 优先权: GB1374671 1971-05-07; GB3606071 1971-07-30
- 主分类号: H04R9/02
- IPC分类号: H04R9/02 ; H04R9/04 ; H04R9/00
摘要:
An audio-transducer incorporates a diaphragm carrying a current conductor and a plurality of permanent magnets constituting a magnet unit disposed in spaced relationship to the conductor. The magnets are formed of a material consisting of magnetizable particles embedded in a matrix of non-magnetic material. The diaphragm may be curved and/or corrugated.