Projection and exposure apparatus including an optical member and a holding member
First Claim
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1. An optical apparatus comprising:
- an optical member;
a holding member for holding said optical member with a gap between said optical member and said holding member; and
a powder charged in the gap between said optical member and said holding member such that the optical member and holding member are maintained in a space a part relationship.
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Abstract
A projection and exposure apparatus includes an optical member, a holding member for holding the optical member with a gap between the optical member and the holding member, and a powder charged in the gap between the optical member and the holding member, such that the optical member and the holding member are maintained in a spaced-apart relationship.
23 Citations
16 Claims
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1. An optical apparatus comprising:
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an optical member; a holding member for holding said optical member with a gap between said optical member and said holding member; and a powder charged in the gap between said optical member and said holding member such that the optical member and holding member are maintained in a space a part relationship. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A projection and exposure apparatus comprising:
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(i) an optical member, (ii) a holding member for holding said optical member with a gap between said optical member and said holding member; and (iii) a powder charged in the gap between said optical member and said holding member, such that said optical member and said holding member are maintained in a spaced-apart relationship. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification