Electrostatic headphones
An electrostatic transducer has two oppositely disposed counter-electrodes and a diaphragm which is disposed between the two counter-electrodes and which has a first weakly conductive coating. In its edge region the diaphragm has a second well-conductive coating on the first coating to protect the latter.
1. An electrostatic transducer comprising:
two oppositely disposed counter-electrodes;
a diaphragm which is disposed between the two counter-electrodes and which has a first conductive coating;
a conductive contact ring;
wherein an edge region of the diaphragm has a second conductive coating on the first conductive coating;
wherein the second conductive coating is in electrical contact with the conductive contact ring and projects inwardly beyond the conductive contact ring; and
wherein the second conductive coating is in form of a reinforced diaphragm metallization extending inwardly beyond the conductive contact ring.
2. The electrostatic transducer as set forth in claim 1 ;
wherein the second conductive coating is in the form of a continuous annular coating.
3. The electrostatic transducer as set forth in claim 1 ;
wherein the second conductive coating is in the form of an annular coating with interruptions.
4. The electrostatic transducer as set forth in claim 1 ;
wherein the second conductive coating is made from a different material than the first conductive coating.
5. The electrostatic transducer as set forth in claim 1 ;
wherein the second conductive coating is thicker than the first conductive coating.
6. A headphone comprising:
an electrostatic transducer as set forth in claim 1 .
7. The electrostatic transducer as set forth in claim 1 ;
wherein a conductivity of the second conductive coating is greater than or equal to that of the first conductive coating.
8. The electrostatic transducer as set forth in claim 7 ;
wherein the conductivity of the second conductive coating is greater than that of the first conductive coating.
9. The electrostatic transducer as set forth in claim 1 ;
wherein the conductive contact ring is made from a conductive material.
10. An electrostatic transducer comprising:
two oppositely disposed counter-electrodes;
a diaphragm which is disposed between the two counter-electrodes and which has a first conductive coating;
a conductive contact ring;
wherein an edge region of the diaphragm has a second conductive coating on the first conductive coating;
wherein the second conductive coating is in electrical contact with the conductive contact ring and projects inwardly beyond the conductive contact ring; and
wherein the second conductive coating is in the form of an annular coating with interruptions.
11. The electrostatic transducer as set forth in claim 10 ;
wherein the second conductive coating is made from a different material than the first conductive coating.
12. The electrostatic transducer as set forth in claim 10 ;
wherein the second conductive coating is thicker than the first conductive coating.
13. A headphone comprising:
an electrostatic transducer as set forth in claim 10 .
14. The electrostatic transducer as set forth in claim 10 ;
wherein a conductivity of the second conductive coating is greater than or equal to that of the first conductive coating.
15. The electrostatic transducer as set forth in claim 14 ;
wherein the conductivity of the second conductive coating is greater than that of the first conductive coating.
16. The electrostatic transducer as set forth in claim 10 ;
wherein the conductive contact ring is made from a conductive material.