Low pressure discharge lamp having sintered "cold cathode"...

Details Low pressure discharge lamp having sintered "cold cathode"... Low pressure discharge lamp having sintered "cold cathode"...

H - Electricity

01

J

H01J 61/067 (2006.01) H01J 9/02 (2006.01) H01J 61/70 (2006.01) H01J 61/72 (2006.01) H01J 61/78 (2006.01)

Patent

CA 2103695

A fluorescent low pressure discharge lamp is provided with axially mounted cold-cathode electrodes consisting of a sintered shaped mixture of inorganic material including about 50-90% by weight off tungsten and the remainder BaO or a mixture of BaO, Ca0 and SrO and oxides of Y, Zr or Hf or the rare earths. The electrodes have a uniform density throughout with a porosity of less than 10%.

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