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ACOUSTIC RADIATING MEMBRANE ARRANGEMENT FOR A STRIKING WATCH
ACOUSTIC RADIATING MEMBRANE ARRANGEMENT FOR A STRIKING WATCH
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机译:醒目手表的声音回响膜布置
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摘要
There is provided an acoustic radiating membrane arrangement for a striking or musical watch. The arrangement includes a first membrane arranged superposed on a second membrane. Peripheral edge portions of the two membranes are intended to hold the membranes inside a watch case. The first acoustic radiating membrane is configured to radiate efficiently the frequencies in a first frequency band. The second acoustic radiating membrane is configured to radiate efficiently the frequencies in a second frequency band that is different from the first frequency band. A spacer ring is also disposed between the peripheral edge portions of the first membrane and of the second membrane to define an acoustic cavity.
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