Damping arrangement for dissipating oscillating energy of an element in a system, more particularly in a microlithographic projection exposure apparatus
First Claim
1. An arrangement, comprising:
- a mirror having a cavity;
a rheological fluid in the cavity of the mirror; and
an absorber mass in the cavity of the mirror,wherein;
the absorber mass is at least partly surrounded by the rheological fluid so that the absorber mass and the rheological fluid define a mass-spring system that is configured to dampen a translational movement component of an oscillation of the mirror that exists at a linking point of the absorber mass; and
the arrangement is configured to be used in a microlithographic projection exposure apparatus.
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Accused Products
Abstract
The invention relates to a damping arrangement for dissipating oscillation energy of an element in a system, more particularly in a microlithographic projection exposure apparatus, comprising an absorber mass, which is mounted via a stable mounting with respect to the element, wherein the absorber mass is arranged in a cavity present within the element and is at least partly surrounded by a fluid situated in the cavity, wherein a mass-spring system is formed by the absorber mass, the system damping a translational movement component of an oscillation of the element that exists at the linking point of the absorber mass, and wherein the stable mounting is formed by a rheological fluid that is electrically controllable or controllable via electric or magnetic fields.
20 Citations
23 Claims
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1. An arrangement, comprising:
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a mirror having a cavity; a rheological fluid in the cavity of the mirror; and an absorber mass in the cavity of the mirror, wherein; the absorber mass is at least partly surrounded by the rheological fluid so that the absorber mass and the rheological fluid define a mass-spring system that is configured to dampen a translational movement component of an oscillation of the mirror that exists at a linking point of the absorber mass; and the arrangement is configured to be used in a microlithographic projection exposure apparatus. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. An apparatus, comprising:
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an arrangement, comprising; mirror having a cavity; a rheological fluid that is in the cavity of the mirror; and an absorber mass stably in the cavity of the mirror, wherein; the absorber mass is at least partly surrounded by the rheological fluid so that the absorber mass and the rheological fluid define a mass-spring system that is configured to dampen a translational movement component of an oscillation of the mirror that exists at a linking point of the absorber mass; and the apparatus is a microlithographic projection exposure apparatus. - View Dependent Claims (21, 22, 23)
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Specification