| 摘要 |
In a gas laser which is terminated by Brewster windows (4), an increase in the efficiency is achieved in that the segment angle, related to the optical axis (8) between the surface normals (7) of the two Brewster windows (4) is made approximately equal to zero. For this purpose, a holder (3) on which the Brewster window (4) is mounted is wound in the form of a spiral on the complete laser, in its circumferential direction. The invention is suitable for gas lasers. <IMAGE>
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