Invention Grant
US06979958B2 High efficacy metal halide lamp with praseodymium and sodium halides in a configured chamber
有权
在配置的室内具有镨和卤化钠的高功率金属卤化物灯
- Patent Title: High efficacy metal halide lamp with praseodymium and sodium halides in a configured chamber
- Patent Title (中): 在配置的室内具有镨和卤化钠的高功率金属卤化物灯
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Application No.: US10062078Application Date: 2002-01-31
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Publication No.: US06979958B2Publication Date: 2005-12-27
- Inventor: Huiling Zhu , Shin Ukegawa , Hiroshi Nohara , Jakob Maya
- Applicant: Huiling Zhu , Shin Ukegawa , Hiroshi Nohara , Jakob Maya
- Applicant Address: JP Osaka JP Osaka
- Assignee: Matsushita Electric Industrial Co., Ltd.,Matsushita Electric Works, Ltd.
- Current Assignee: Matsushita Electric Industrial Co., Ltd.,Matsushita Electric Works, Ltd.
- Current Assignee Address: JP Osaka JP Osaka
- Agency: Kinney & Lange, P.A.
- Main IPC: H05B41/24
- IPC: H05B41/24 ; H01J17/20 ; H01J61/04 ; H01J61/073 ; H01J61/12 ; H01J61/20 ; H01J61/30 ; H01J61/32 ; H01J61/34 ; H01J61/36 ; H01J61/82 ; H01J61/88 ; H05B41/16
Abstract:
An arc discharge metal halide lamp for use in selected lighting fixtures having a discharge chamber with light permeable ceramic walls of a selected shape about a discharge region of a selected volume. A pair of electrodes are supported in the discharge region separated from one another by a separation length. The separation length is in a ratio to the effective inner diameter that is greater than four. Ionizable materials are provided in the discharge region comprising a quantity of mercury in a ratio to the discharge region volume that is less than 4 mg/cm3, a noble gas, praseodymium halide, and sodium halide.
Public/Granted literature
- US20030141826A1 HIGH EFFICACY METAL HALIDE LAMP WITH PRASEODYMIUM AND SODIUM HALIDES IN A CONFIGURED CHAMBER Public/Granted day:2003-07-31
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