Electrostatic transducer and diaphragm
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United States of America Patent
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Nov 21, 2023
Grant Date -
N/A
app pub date -
May 7, 2020
filing date -
May 7, 2019
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Abstract
An electrostatic transducer, a diaphragm (2) therefor, and corresponding methods of manufacture are disclosed. The electrostatic FIG. 1 transducer is preferably for use in a motor vehicle. A composite laminated diaphragm (2) is manufactured by providing a first insulating layer (4), providing a conductive layer (6) on a surface of the first insulating layer (4), and bonding a second insulating layer (10) to the conductive layer (6) such that the second insulating layer (10) extends over the conductive layer (6). The first and second insulating layers (4, 10) each comprise a sheet of uncharged insulating material. The thickness of the composite laminated diaphragm (2) is less than 20 μm. Manufacturing the electrostatic transducer comprises securing a first conductive stator, a first insulating spacer and the diaphragm (2) in a stack with the first insulating spacer between the first conductive stator and the diaphragm (2) to provide a spacing of less than 1 mm between the first conductive stator and the diaphragm (2).
First Claim
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Patent Owner(s)
Patent Owner | Address | |
---|---|---|
WARWICK ACOUSTICS LIMITED | MIRA TECHNOLOGY PARK UNIT 3 NW07 NUNEATON CV10 0TU |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Fordham, Julian David | Northamptonshire, GB | 2 | 0 |
Hedges, James | Derby, GB | 6 | 29 |
Lewis, David Rhys | Bridgend, GB | 2 | 0 |
Lisle, Benjamin Martin | Staffordshire, GB | 2 | 0 |
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