Electric arc tube for ceramic metal halide lamp

A technology of halide lamp and ceramic metal, applied in the field of electric light source, to achieve the effect of simple structure, high stability and reasonable design

Inactive Publication Date: 2009-04-29
NINGBO YAMAO OPTOELECTRONICS CO LTD
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  • Electric arc tube for ceramic metal halide lamp
  • Electric arc tube for ceramic metal halide lamp
  • Electric arc tube for ceramic metal halide lamp

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[0014] The present invention combines metal halide lamps and a-Al 2 o 3 The polycrystalline translucent alumina ceramic arc tube technology is combined to form a lighting source that integrates the advantages of both. The CDM70W / TD / 942 model implementation mode of the present invention is further described in conjunction with parameter and test data now, as Figure 4 As shown, the formed arc tube is placed in a ceramic metal halide lamp, taking the arc tube of a 70W ceramic metal halide lamp as an example. Such as Figure 1 ~ Figure 3 Shown, with polycrystalline translucent alumina made of ceramic tube discharge chamber. The inner cavity of the ceramic discharge chamber 6 is φ7.6±0.1mm, the wall thickness is φ0.7±0.1mm, the length is 13.8mm, the transition zone 3 is 3.0mm, and the conicity is 129°±2°; the tail pipe 2 The length is 11.0mm, the outer diameter is 2.6mm, and the aperture is 0.8mm; the electrode assembly 4 and the inner diameter of the tail pipe are hermeticall...

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Abstract

The invention relates to an electric arc tube of a ceramics metal halide lamp in the technical field of electric light source. The invention is designed to aim at the technical problem that the structure design on the existing products needs to be improved. The electric arc tube is baked and manufactured by taking a high-purity a-Al203 polycrystal semi-transparent alumina (PCA) ceramics; an electrode component is inserted into a ceramics discharging cavity by a tail tube; the clearance between the electrode component and the tail tube is sealed by a glass solder. The invention is mainly designed in that the outer diameter surface of a transition area is vertical to a main tube and the tail tube; the ceramics discharging cavity of the inner diameter surface of the transition area is conical; metal halides, Hg and cushion gases are filled in the ceramics discharging cavity; a convex-concave area is arranged at the connection location of the inner diameter surface and the tail tube. The electric arc tube of a ceramics metal halide lamp is more reasonable in design, is simple in structure and has the characteristics of higher stability, color rendering, light efficiency, longer service life and miniaturization, is suitable for being assembled in the body of a jacklight as well as the illumination on the occasions like show windows, marketplaces, car exhibition halls, commercial streets, and the like.

Description

technical field [0001] The invention relates to the technical field of electric light sources, and relates to an arc tube of a ceramic metal halide lamp. Background technique [0002] To overcome the shortcomings of quartz metal halide lamps, a metal halide lamp uses polycrystalline translucent alumina ceramics instead of quartz tubes. Such as the authorization announcement number CN1316552C published in the Chinese patent literature, the date of the authorization announcement was May 16, 2007, the patent number ZL03131897.5, the name of the invention: metal halide lamp arc tube; the authorization announcement number CN100423173C published in the Chinese patent literature, the date of the authorization announcement October 1, 2008, patent number ZL200510110257.3, invention name: ceramic metal halide lamp arc tube. These metal halide lamps have achieved high-load operation, the color rendering index has risen to more than 90, the luminous efficiency has increased by 20% comp...

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Application Information

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IPC IPC(8): H01J61/30H01J61/36
Inventor 施振家施伟雄陈晖
Owner NINGBO YAMAO OPTOELECTRONICS CO LTD
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