Invention Grant
- Patent Title: Low-pressure mercury vapor discharge lamp and apparatus for treatment
- Patent Title (中): 低压汞蒸汽放电灯及其处理设备
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Application No.: US11719777Application Date: 2005-11-21
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Publication No.: US07800309B2Publication Date: 2010-09-21
- Inventor: Simon Krijnen , Theodorus Herman Ketelaar , Olaf Mastenbroek , Roland Blasig
- Applicant: Simon Krijnen , Theodorus Herman Ketelaar , Olaf Mastenbroek , Roland Blasig
- Applicant Address: NL Eindhoven
- Assignee: Koninklijke Philips Electronics N.V.
- Current Assignee: Koninklijke Philips Electronics N.V.
- Current Assignee Address: NL Eindhoven
- Priority: EP04106027 20041124
- International Application: PCT/IB2005/053842 WO 20051121
- International Announcement: WO2006/056934 WO 20060601
- Main IPC: H01J61/30
- IPC: H01J61/30
Abstract:
A low-pressure mercury vapor discharge lamp has a lamp envelope enclosing, in a gastight manner, a discharge space provided with a filling of mercury and a rare gas. The lamp envelope includes electrodes for maintaining a discharge in the discharge space. The lamp envelope transmits UV-light and is made of a black glass component. The composition of the black glass component is free of PbO and comprises, expressed as a percentage by weight, the following constituents: 65-70% by weight of SiO2, 1.4-2.2% by weight of Li2O, 1.5-2.5% by weight of Na2O, 11-13% by weight of K2O, 1.8-2.6% by weight of MgO, 2.5-5% by weight of CaO, 2-3.5% by weight of SrO, 8-9.5% by weight of BaO, 0.2-0.4% by weight of CoO, and 1.7-3.25% by weight of NiO.
Public/Granted literature
- US20090146569A1 LOW-PRESSURE MERCURY VAPOR DISCHARGE LAMP AND APPARATUS FOR TREATMENT Public/Granted day:2009-06-11
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