Electric lamp and discharge devices – With temperature modifier – Double wall – jacket or casing for envelope
Patent
1994-10-21
1995-07-11
O'Shea, Sandra L.
Electric lamp and discharge devices
With temperature modifier
Double wall, jacket or casing for envelope
31331808, 313112, 362293, 439607, H01J 550
Patent
active
054323991
ABSTRACT:
A discharge lamp apparatus in which an insulating base for supporting a lead support base end portion maintains its dielectric strength over long periods of use, and which is simple to assemble. A lead support acting as a current path is projectingly provided on a front surface of a synthetic-resin insulating base, which is a lamp holder, a front end portion of an arc tube, which is a discharge lamp body, is supported by the lead support, a rear end portion of the arc tube is fixedly supported in an engagement concave portion formed in the insulating base, and the lead support is covered with a ceramic insulating cylindrical body. In accordance with the invention, a base end portion of the insulating cylindrical body is integrated with the insulating base through insert molding.
REFERENCES:
patent: 5032758 (1991-07-01), Davenport et al.
patent: 5059855 (1991-10-01), Irisawa et al.
patent: 5126619 (1992-06-01), Wakimizu et al.
patent: 5220235 (1993-06-01), Wakimizu et al.
patent: 5250872 (1993-10-01), Wakimizu et al.
patent: 5253153 (1993-10-01), Mathews et al.
Handa Masami
Motiduki Kunimasa
Nagasawa Masakazu
Wakimizu Yukio
Koito Manufacturing Co. Ltd.
O'Shea Sandra L.
Patel Ashok
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