Ceramic projection lamp
A technology of projection lamps and ceramics, applied in discharge lamps, gas discharge lamps, high-pressure discharge lamps, etc., can solve problems such as arc tube blackening, high working current, and changing electrode distance, so as to reduce electrode heating and improve cold end Effect of temperature and guaranteed working pressure
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[0026] The present invention will be described in detail below in conjunction with embodiments and drawings.
[0027] Such as figure 1 As shown, the present invention discloses a ceramic projection lamp, which includes a discharge cavity 1 and electrode tubes 2 arranged at both ends of the discharge cavity 1, and an electrode assembly 3 extending into the discharge cavity 1 through the electrode tubes 2. The discharge cavity 1 and The electrode tube 2 is made of a transparent ceramic material. The electrode assembly 3 is airtightly sealed with the electrode tube 2 by solder 4, and the discharge chamber 1 is filled with mercury and a small amount of metal or rare earth halides. The discharge cavity 1 is filled with a suitable proportion of metal halide as a light-emitting substance to increase the light efficiency and further improve the color of the light. Metal halides include Na (sodium), K (potassium), Cs, Ce, In halides, or some rare earth halides, or combinations thereof. ...
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