| 摘要 |
In a gas laser whose housing is composed of metal caps and a hollow tube of glass or ceramic, whereby the parts are joined with a glass solder connection have a low melting temperature, i.e. with a glass solder that contains lead borate, a durable, vacuum-tight connection is guaranteed in that the metal cap is shaped such that its free edge approaches closer to the tube at at least certain locations than does an expanded portion of the metal cap lying back from the free edge, and in that the glass solder at least partially fills the space between the expanded portion and the hollow tube.
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