Invention Grant
US06853119B2 Double layer electrode coil for a HID lamp and method of making the electrode coil
失效
用于HID灯的双层电极线圈和制作电极线圈的方法
- Patent Title: Double layer electrode coil for a HID lamp and method of making the electrode coil
- Patent Title (中): 用于HID灯的双层电极线圈和制作电极线圈的方法
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Application No.: US09921039Application Date: 2001-08-02
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Publication No.: US06853119B2Publication Date: 2005-02-08
- Inventor: Charles A. Huntington , Stuart K. Denham
- Applicant: Charles A. Huntington , Stuart K. Denham
- Applicant Address: US MA Danvers
- Assignee: Osram Sylvania Inc.
- Current Assignee: Osram Sylvania Inc.
- Current Assignee Address: US MA Danvers
- Agent Robert F. Clark
- Main IPC: H01J61/04
- IPC: H01J61/04 ; H01J1/16 ; H01J5/50 ; H01J9/02 ; H01J19/10 ; H01J61/073 ; H01S4/00

Abstract:
A double-layer electrode coil for a high intensity discharge (HID) lamp and a method of making the electrode coil are provided. A more stable layer of coils is made by front winding, instead of back winding, the layers of wire. The second layer of wire is entirely within a helical groove on the exterior surface of the first layer of wire. This arrangement is particularly stable and permits more rapid insertion of the electrode shank after removal of the mandrel.
Public/Granted literature
- US20030025434A1 Double layer electrode coil for a HID lamp and method of making the electrode coil Public/Granted day:2003-02-06
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