FOCUSING DEVICE AND EUV RADIATION GENERATING DEVICE HAVING SAME

A focusing device for focusing a laser beam in a target area. The focusing device includes a paraboloid mirror configured to widen the laser beam; an ellipsoid mirror or a hyperboloid mirror configured to focus the widened laser beam at a focal position within the target area; and a movement device....

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ERGIN, Tolga, LAMBERT, Martin
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:A focusing device for focusing a laser beam in a target area. The focusing device includes a paraboloid mirror configured to widen the laser beam; an ellipsoid mirror or a hyperboloid mirror configured to focus the widened laser beam at a focal position within the target area; and a movement device. The movement device is configured to move the ellipsoid mirror or the hyperboloid mirror relative to the paraboloid mirror, or together with the paraboloid mirror, to change the focal position within the target area.