Invention Grant
- Patent Title: Low-pressure mercury vapor discharge lamp
- Patent Title (中): 低压汞蒸气放电灯
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Application No.: US10476808Application Date: 2002-05-08
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Publication No.: US06977469B2Publication Date: 2005-12-20
- Inventor: Peter Arend Seinen , Josephus Theodorus Van Der Eyden
- Applicant: Peter Arend Seinen , Josephus Theodorus Van Der Eyden
- Applicant Address: NL Eindhoven
- Assignee: Koninklijke Philips Electronics N.V.
- Current Assignee: Koninklijke Philips Electronics N.V.
- Current Assignee Address: NL Eindhoven
- Priority: EP01201663 20010508
- International Application: PCT/IB02/01635 WO 20020508
- International Announcement: WO02/091423 WO 20021114
- Main IPC: H01J61/10
- IPC: H01J61/10 ; H01J61/04 ; H01J61/72 ; H01J17/02
Abstract:
Low-pressure mercury vapor discharge lamp comprising a discharge vessel (10) having a first and a second end portion (12a, 12b), the discharge vessel (10) containing mercury and a rare gas, wherein the end portions (12a, 12b) each support an electrode (20a,20b) arranged in the discharge vessel (10) for initiating and maintaining a discharge in the discharge vessel (10), wherein an electrode shield (22a,22b) substantially encompasses at least one of the electrodes (20a,20b), and wherein said electrode shield (22a,22b) comprises an inner wall (23a) and an outer wall (24a), said walls (23a,24a) being spaced apart.
Public/Granted literature
- US20040130257A1 Low-pressure mercury vapor discharge lamp Public/Granted day:2004-07-08
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