Metal holide lamp arc tube
Patent Information
- Authority / Receiving Office
- CN · China
- Current Assignee / Owner
- 常州金蓝邑国际贸易有限公司
- Publication Date
- 2003-12-10
- Estimated Expiration
- Not applicable · inactive patent
Smart Images
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Abstract
Description
Technical field
[0001] The invention relates to the electrical industry, in particular to an arc tube of a metal halide lamp. Background technique
[0002] At present, the arc tube shells of metal halide lamps in China are all made of quartz glass. Because quartz glass will produce a series of chemical reactions with metal halides at high temperatures and the leakage of metal ions, resulting in the loss of metal elements and electrode damage. Corrosion causes the ignition voltage, arc voltage drop and restart voltage to increase significantly during the use of the lamp, the light decay is large, the light color drifts seriously, and the life is affected, thus limiting the further improvement of the performance and life of the lamp.
[0003] Because the chemical stability, corrosion resistance and high temperature resistance of alumina ceramics are significantly better than quartz glass, in recent years, several famous foreign electric light source companies have spent huge s...