Electric lamp and discharge devices – With gas or vapor – Three or more electrode discharge device
Patent
1995-05-30
1997-07-08
O'Shea, Sandra L.
Electric lamp and discharge devices
With gas or vapor
Three or more electrode discharge device
313596, 313601, H01J 1730, H01J 1746, H01J 6154
Patent
active
056464835
ABSTRACT:
A discharge lamp or an electrodeless discharge lamp including a discharge gas filled inside a bulb, an electrode part present inside the bulb for emitting thermoelectrons into the discharge gas, and a cesium compound placed in a position other than the electrode part inside the bulb. According to this configuration, this discharge lamp has a short starting delay time even at a low temperature including room temperature, without using any starting auxiliary light source or a radioactive material. The cesium compound is contained on the surface of a metal mesh which is fixed via a supporting arm in a position avoiding the electrode part inside the bulb. It is preferable that the cesium oxide is in contact with the discharge space. In this way, starting property can be improved without using any starting auxiliary light source or a radioactive material. The electrodeless discharge lamp has the cesium compound at an optional position in the discharge space.
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Journal of the Illuminating Engineering Society Article, Summer 1990 (pp. 76-83) --Titled Zaslavsky et al., "Improved Starting of the 100-W Metal Halide Lamp".
Myojo Minoru
Namura Toshiyuki
Yamazaki Haruo
Haynes Mack
Matsushita Electronics Corporation
O'Shea Sandra L.
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