Resources Contact Us Home
Projection and exposure apparatus including an optical member and a holding member

Image Number 9 for United States Patent #6144504.

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.

  Recently Added Patents
Method and system for automatically hiding irrelevant parts of hierarchical structures in computer user interfaces
2,2'-binaphthalene ester chiral dopants for cholesteric liquid crystal displays
Laser processing method and apparatus
Amplitude-shift-keying (ASK) envelope detector and demodulation circuits
Methods for processing 2Nx2N block with N being positive integer greater than four under intra-prediction mode and related processing circuits thereof
Method for producing purified influenza virus antigen
Method of forming a power supply controller and structure therefor
  Randomly Featured Patents
Azaindoles useful as inhibitors of JAK and other protein kinases
Fiber waveguide coupling device
Method of manufacturing pneumatic tire and vulcanizing metal mold used for the method
Food packaging container
Process and apparatus for reprocessing polyurethane foam wastes, in particular flexible foam wastes, for recycling as additives in the production of polyurethane
Apparatus and method for video data processing in digital video decoding
Scanning circuit and image display apparatus
Combined amplifier and tuner
Stud spacer
Method of making improved hydrogenation catalyst