| 摘要 |
A gas laser tube with a vacuum envelope, includes: a tubular section formed of an electrically insulating material with a coefficient of thermal expansion H1; an end section formed of an electrically insulating material with a coefficient of thermal expansion H2, such that <IMAGE> wherein i=1, 2; and a transition element connecting the tubular section to the end section; the transition element including a first metallic section adjacent the tubular section and a second metallic section, the first and second metallic sections having different respective coefficients of thermal expansion H3 and H4; the first metallic section being thermally matched to the tubular section such that <IMAGE> wherein m=1, 3; the second metallic section being thermally matched to the end section such that <IMAGE> wherein n=2, 4; the first and second metallic sections having end surfaces with mutually complementary steps formed therein being disposed inside each other; and the first and second metallic sections having inner wall surfaces being joined together. |
