摘要 |
An oval mirror element (4) can be cooled by a substance and has a two-part membrane (6.1,6.2), whose membranes are firmly soldered up. Several cooling channels (7.1,7.2) are assigned to the mirror element in an outer and/or inner membrane. The channels connect to a feed and drain-away. One or membranes can be reshaped under pressure mechanically, pneumatically, hydraulically or piezoelectrically.
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