Invention Grant
- Patent Title: Mercury-free high-pressure discharge lamp and luminaire using the same
- Patent Title (中): 无汞高压放电灯和使用其的灯具
-
Application No.: US11557277Application Date: 2006-11-07
-
Publication No.: US07573203B2Publication Date: 2009-08-11
- Inventor: Takahito Kashiwagi , Masazumi Ishida , Mikio Matsuda , Kozo Uemura
- Applicant: Takahito Kashiwagi , Masazumi Ishida , Mikio Matsuda , Kozo Uemura
- Applicant Address: JP Tokyo
- Assignee: Toshiba Lighting & Technology Corporation
- Current Assignee: Toshiba Lighting & Technology Corporation
- Current Assignee Address: JP Tokyo
- Agency: DLA Piper LLP (US)
- Priority: JPP2005-322748 20051107
- Main IPC: H01J17/20
- IPC: H01J17/20 ; H01J61/12
Abstract:
A mercury-free high-pressure discharge lamp includes a light-transmissive airtight envelope enclosing therein a discharge space, and a pair of electrodes sealed inside the light-transmissive airtight envelope and facing the discharge space, and the primary halide includes at least thulium bromide having an innumerable emission spectrum primarily around the peak of a luminosity curve and alkali metal halide, and the accessory halide contains one or more metal halides mostly selected from a group of Magnesium (Mg), Iron (Fe), Cobalt (Co), Chromium (Cr), Zinc (Zn), Nickel (Ni), Manganese (Mn), Aluminum (Al), Antimony (Sb), Bismuth (Bi), Beryllium (Be), Rhenium (Re), Gallium (Ga), Titanium (Ti), Zirconium (Zr), and Hafnium (Hf) which primarily contribute to fix lamp voltage.
Public/Granted literature
- US20070138964A1 MERCURY-FREE HIGH-PRESSURE DISCHARGE LAMP AND LUMINAIRE USING THE SAME Public/Granted day:2007-06-21
Information query
