Method for producing an electrode and gas discharge lamp having an electrode of this type
The invention relates to a gas discharge lamp having at least one electrode and to a method for producing an electrode. According to the invention, the structure of a section ( 30 ) of the electrode ( 20, 22 ) is at least partially transformed by means of high-energy radiation, preferably laser radiation.
1 . A method for producing an electrode ( 20 , 22 ) for a discharge lamp, characterized in that the microstructure of at least one section ( 30 ) of the electrode ( 20 , 22 ) is transformed at least partially by means of high-energy radiation, preferably laser radiation.
2 . The method as claimed in claim 1 , the microstructure being transformed continuously.
3 . The method as claimed in claim 1 , characterized in that the section is one end ( 30 ) of the electrode ( 20 , 22 ).
4 . A method for producing a power supply line ( 14 ) of a discharge lamp, characterized in that the microstructure of at least one section of the power supply line ( 14 ) is transformed at least partially by means of high-energy radiation, preferably laser radiation.
5 . The method as claimed in claim 4 , characterized in that the section is a surface section of the power supply line ( 14 ).
6 . A discharge lamp having at least one electrode ( 20 , 22 ) and at least one power supply line ( 14 ), characterized in that the microstructure of at least one section ( 30 ) of the electrode ( 20 , 22 ) and/or of the power supply line ( 14 ) is transformed at least partially by means of high-energy radiation, preferably laser radiation.
7 . The discharge lamp as claimed in claim 6 , the section ( 30 ) having a microstructure which substantially corresponds to the operating state.
8 . The discharge lamp as claimed in claim 6 , the section ( 30 ) having a coarse-crystalline microstructure.
9 . The discharge lamp as claimed in claim 6 , the section ( 30 ) having a purity which substantially corresponds to the operating state of the lamp ( 1 ).
10 . The discharge lamp as claimed in claim 6 , the section ( 30 ) being produced by means of high-energy radiation, preferably laser radiation.
11 . The discharge lamp as claimed in claim 6 , the section being the discharge-side end ( 30 ) of the electrode ( 20 , 22 ).
12 . The discharge lamp as claimed in claim 6 , the electrode ( 20 , 22 ) being in the form of a bar-shaped tungsten electrode.
13 . The discharge lamp as claimed in claim 6 , the section being a surface section of the power supply line ( 14 ).
14 . The discharge lamp as claimed in claim 7 , the section ( 30 ) having a purity which substantially corresponds to the operating state of the lamp ( 1 ).
15 . The discharge lamp as claimed in claim 8 , the section ( 30 ) having a purity which substantially corresponds to the operating state of the lamp ( 1 ).
16 . The discharge lamp as claimed in claim 7 , the section ( 30 ) being produced by means of high-energy radiation, preferably laser radiation.
17 . The discharge lamp as claimed in claim 8 , the section ( 30 ) being produced by means of high-energy radiation, preferably laser radiation.
18 . The discharge lamp as claimed in claim 9 , the section ( 30 ) being produced by means of high-energy radiation, preferably laser radiation.
19 . The discharge lamp as claimed in claim 7 , the section being the discharge-side end ( 30 ) of the electrode ( 20 , 22 ).
20 . The discharge lamp as claimed in claim 8 , the section being the discharge-side end ( 30 ) of the electrode ( 20 , 22 ).