主权项 |
1. An audio transducer, comprising:
a single rectangular diaphragm film with a centrally-disposed fold-line with a first, second and third circular hole and a first and second rectangular hole located on the fold line, said diaphragm film folded in the middle along said fold-line to form a pair of hemi-cylindrical lobes, each lobe having a distal end and proximal end, wherein the first and second rectangular holes form first and second rectangular slots when said diaphragm film is folded; one or more energy absorbent dampers positioned inside one or both the lobes; and a voice coil secured to the diaphragm film by the first and second rectangular slots; further wherein the first, second and third circular holes form semi-circular notches when said diaphragm film is folded, the first circular hole disposed centrally between the first and second rectangular slots, the first rectangular slot disposed between the second and first circular holes, and the second rectangular slot disposed between the third and first circular holes. |