Invention Grant
US08067322B2 Glass composition for lamp, glass part for lamp, and process for producing lamp or glass composition for lamp
失效
用于灯的玻璃组合物，灯的玻璃部件，以及用于生产灯的玻璃或玻璃组合物的方法
- Patent Title: Glass composition for lamp, glass part for lamp, and process for producing lamp or glass composition for lamp
- Patent Title (中): 用于灯的玻璃组合物，灯的玻璃部件，以及用于生产灯的玻璃或玻璃组合物的方法
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Application No.: US11993004Application Date: 2006-07-07
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Publication No.: US08067322B2Publication Date: 2011-11-29
- Inventor: Ryousuke Sawa , Junko Abe , Tomoko Atagi , Masanobu Itou , Tomoko Akai , Masaru Yamashita
- Applicant: Ryousuke Sawa , Junko Abe , Tomoko Atagi , Masanobu Itou , Tomoko Akai , Masaru Yamashita
- Applicant Address: JP Tokyo
- Assignee: National Institute of Advanced Industrial Science and Technology
- Current Assignee: National Institute of Advanced Industrial Science and Technology
- Current Assignee Address: JP Tokyo
- Priority: JP2005-203574 20050712
- International Application: PCT/JP2006/313540 WO 20060707
- International Announcement: WO2007/007651 WO 20070118
- Main IPC: C03C3/095
- IPC: C03C3/095 ; C03C3/087 ; H01J17/16
Abstract:
A glass composition for lamps includes the following by weight percent: SiO2: 60-75 wt %; CeO2+Ce2O3: 0.01-5.2 wt %; SnO+SnO2: 0.01-5.2 wt %; Al2O3: 0.5-6 wt %; B2O3: 0-5 wt %; Li2O+Na2O+K2O: 13-20 wt %; MgO: 0.5-5 wt %; CaO: 1-10 wt %; SrO: 0-10 wt %; BaO: 0-10 wt %; ZnO: 0-10 wt %; Fe2O3+FeO: 0-0.2 wt %; and TiO2: 0-1 wt %. The glass composition for lamps that contains no lead or antimony achieves high ultraviolet screening capacity, ensuring fewer occurrences of initial coloring and ultraviolet ray caused coloring of glass.
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